JP6748394B2 - Stable foldable household stepladder - Google Patents

Description

The present invention takes up the field of stepladder production technology, and is specifically a stable folding type domestic stepladder.

Folding stepladder is now widely used in furniture life, and because of the large number of folding angles of the folding stepladder, the punching operation must be performed on the raw material plate during processing production. Traditional drilling operations often rely on human power to perform manual work, which is not only labor intensive, but also results in severely reduced production efficiency. At present, the number of automated punching devices is not small, but I think that there is still room for improvement, because cooperative work cannot be realized.

Chinese Patent Application Publication No. 104196437

In spite of the shortcomings of the above techniques, the present invention provides a stable foldable domestic stepladder.

The stable folding type domestic stepping device of the device of the present invention includes a housing and a working seat fixedly installed in the housing, and the working seat is provided with a first sliding housing penetrating back and forth. The first sliding housing is installed so as to communicate with the inner bottom wall of the first sliding housing, the first sliding board extending forward and backward is installed in the first sliding housing, and the top of the first sliding board is installed. A groove extending forward and backward is installed on the end face of the first sliding plate, and two internal tooth splines are installed in the first sliding plate so as to be symmetrical and open downward. A second sliding housing is installed on the processing seat, and a first rotating shaft is rotatably installed between the first rotating housing and the second sliding housing. An extending end on the left side of the first sliding case is inserted into the second sliding housing, and an extending end on the right side is rotatably installed with the inner wall on the right side of the first rotating housing. Two rotary gears located in the rotary housing are installed, the two rotary gears are bilaterally symmetrical, a slide block is installed in the second sliding housing, and a first slide block is installed on the left end face of the slide block. Two sliding plates are fixedly mounted, a first slope is fixedly installed on the left end of the second sliding plate, and a first motor is installed on the right end of the sliding block. A spline bearing is installed on the right end surface of the one motor so that it can be transmitted, a spline groove facing the right is installed in the spline bearing, a spline shaft is connected to the spline in the spline groove, and the right side of the spline shaft is An end is fixedly connected to the first rotating shaft, a third sliding case is installed on the left end wall of the second sliding case, and a third sliding plate is attached to the third sliding case. The rack is installed on the right side end surface of the third slide plate, and the second slope that interengages with the first slope is fixedly installed on the bottom end surface. A mounting housing is installed on the processing seat on the left side of the housing, a hydraulic tank is fixedly installed on the mounting housing, and a hydraulic housing is installed on the hydraulic tank. A partition extending downward is fixedly installed on the inner top wall, the partition divides the hydraulic enclosure into a left hydraulic enclosure and a right hydraulic enclosure, and the left hydraulic enclosure and the right hydraulic enclosure communicate with each other. And a fourth sliding housing is installed on the left side of the mounting housing, a hydraulic device is installed on the fourth sliding housing, and the upper and lower sides are installed on the inner top wall of the left hydraulic housing. The first through-hole that penetrates the A piston plate is installed, a first guide rod penetrating the first through hole and entering the fourth sliding housing is fixedly installed on the top of the piston board, and A second rotating housing is installed on the right side of the top wall, a second through hole is formed vertically through the inner top wall of the right hydraulic housing, and a sliding arm is installed on the right hydraulic housing. A second guide rod penetrating the second through hole and entering the second rotary housing is fixedly installed on the top of the sliding arm, and a punching device and a lighting device are installed on the processing seat. R.

As a further technical plan, the punching device includes a fifth sliding housing which is installed on an inner top wall of the first sliding housing and communicates with the second rotating housing, and the fifth sliding housing is provided. A second slide block is attached to the housing, a second motor is fixedly installed on the end face of the bottom of the second slide block, and a drill extending downward is installed on the bottom of the second motor so that it can be transmitted. First stop grooves are symmetrically installed on the left and right end walls of the fifth sliding housing, and first stop blocks fixedly connected to the second sliding block are installed in the first stop groove. , A first connection block is fixedly installed on the end surface of the top of the second slide block, and a first connection lever that enters the second rotary housing is connected to the first connection block by a hinge, and A hinge arm is rotatably installed on a second rotary housing of the second rotary shaft through a second rotary shaft, and upper and lower ends of the hinge arm are hinged to the top of the first connecting lever and the top of the second guide rod, respectively. Be connected.

As a further technical plan, the hydraulic device may be installed on a fourth sliding plate installed on the fourth sliding housing or on an inner top wall of the fourth sliding housing and the fourth sliding plate may be installed. A hydraulic cylinder connected to the upper part of the first slide rod, the end surface of the fourth slide plate being fixedly connected to the top of the first guide rod, the fourth slide housing and the third slide body. A third rotating case is installed so as to communicate between the cases, and a rotating ring is rotatably installed on the third rotating case through a third rotating shaft. A sector gear that meshes with the rack is fixedly installed, and a second connecting lever that enters the fourth sliding housing is fixedly installed on the right side of the outer circle of the rotating ring, and the first guide rod. A second connection block, which is hingedly connected to the second connection lever, is fixedly installed on the left end face of the.

As a further technical plan, second stop grooves extending forward and backward are symmetrically installed on the left and right end walls of the first sliding housing, and fixedly connected to the first sliding plate in the second stop grooves. A second stop block is installed.

As a further technical plan, a third stop groove is symmetrically installed on the upper and lower end walls of the second sliding housing, and a third stop block fixedly connected to the sliding block is provided in the third stop groove. A tension coil spring is installed and attached to the inner wall on the left side of the third stop groove so as to abut the third stop block.

As a further technical plan, a fourth stop groove is symmetrically installed on the right end face of the partition and the inner wall on the right side of the right hydraulic housing, and the fourth stop groove is fixed to the sliding arm in a fixed manner. A fourth stop block to be attached is installed, and a compression spring that abuts the fourth stop block is fixedly attached to the top of the fourth stop groove.

As a further technical plan, sealing rings are installed in the first through hole and the second through hole.

As a further technical plan, the illuminating device includes a lamp panel symmetrically installed on the tops of the left and right end surfaces of the processing seat, and an illumination lamp fixedly installed on the bottom of the lamp panel.

The beneficial effects of the present invention are:

The device of the present invention has a simple structure, is convenient to use, and has a first sliding housing that penetrates the processing seat in the front-rear direction and has a first rotating housing on the inner bottom wall of the first sliding housing. Installed so as to communicate with each other, a first slide plate extending in the front-rear direction is installed in the first slide housing, a passage groove extending in the front-rear direction is installed in an end face of the top part of the first slide plate, and the first slide plate is installed. In the sliding plate, two internal tooth splines are installed so as to be symmetrical and open downward, and a second sliding housing is installed on the processing seat on the left side of the first rotating housing. A first rotating shaft is rotatably installed between the first rotating casing and the second sliding casing, and the left end of the first rotating shaft extends into the second sliding casing. The extending end on the right side is rotatably installed on the inner wall on the right side of the first rotary housing, and the two rotary gears located in the first rotary housing are installed on the first rotary shaft. The two rotary gears are bilaterally symmetric, a sliding block is installed on the second sliding housing, and a second sliding plate is fixedly attached to an end surface on the left side of the sliding block. The first slope is fixedly installed on the left end of the, the first motor is installed on the right end of the sliding block, and the spline bearing is installed on the right end of the first motor so that it can be transmitted. A rightward spline groove is installed in the spline bearing, a spline shaft is connected to the spline in the spline groove, and a right end of the spline shaft is fixedly connected to the first rotating shaft, A third sliding case is installed on the left side end wall of the second sliding case, a third sliding board is installed on the third sliding case, and a rack is installed on the right end surface of the third sliding case. A second slope that is installed and fixedly installed on the end face of the bottom and that engages with the first slope, and a mounting case is installed on the processing seat on the left side of the first sliding case. , A hydraulic tank is fixedly installed on the mounting housing, a hydraulic housing is installed on the hydraulic tank, and a partition extending downward is fixedly installed on an inner top wall of the hydraulic housing. The partition divides the hydraulic casing into a left hydraulic casing and a right hydraulic casing, and is installed so that the left hydraulic casing and the right hydraulic casing communicate with each other, and the fourth casing is installed on the left side of the mounting casing. A sliding housing is installed, a hydraulic device is installed on the fourth sliding housing, and a first through hole vertically penetrating is installed on an inner top wall of the left hydraulic housing. A piston plate is installed on the body, and the first through hole is attached to the top of the piston plate. A first guide rod penetrating through the second sliding housing and fixedly installed on the right side of the inner top wall of the mounting housing. A second through hole is vertically installed on the inner top wall of the housing, a sliding arm is installed on the right hydraulic housing, and the second through hole is installed on the top of the sliding arm and The second guide rod that goes into the second rotary housing of is fixedly installed, and the punching device is installed on the processing seat, which greatly reduces the use of labor and at the same time enhances the automation of the present invention and increases the processing efficiency. Increase.

The beneficial effects of the present invention are:

The device of the present invention has a simple structure, is convenient to use, and has a first sliding housing that penetrates the processing seat in the front-rear direction and has a first rotating housing on the inner bottom wall of the first sliding housing. Installed so as to communicate with each other, a first slide plate extending in the front-rear direction is installed in the first slide housing, a passage groove extending in the front-rear direction is installed in an end face of the top part of the first slide plate, and the first slide plate is installed. In the sliding plate, two internal tooth splines are installed so as to be symmetrical and open downward, and a second sliding housing is installed on the processing seat on the left side of the first rotating housing. A first rotating shaft is rotatably installed between the first rotating casing and the second sliding casing, and the left end of the first rotating shaft extends into the second sliding casing. The extending end on the right side is rotatably installed on the inner wall on the right side of the first rotary housing, and the two rotary gears located in the first rotary housing are installed on the first rotary shaft. The two rotary gears are bilaterally symmetric, a sliding block is installed on the second sliding housing, and a second sliding plate is fixedly attached to an end surface on the left side of the sliding block. The first slope is fixedly installed on the left end of the, the first motor is installed on the right end of the sliding block, and the spline bearing is installed on the right end of the first motor so that it can be transmitted. A rightward spline groove is installed in the spline bearing, a spline shaft is connected to the spline in the spline groove, and a right end of the spline shaft is fixedly connected to the first rotating shaft, A third sliding case is installed on the left side end wall of the second sliding case, a third sliding board is installed on the third sliding case, and a rack is installed on the right end surface of the third sliding case. A second slope that is installed and fixedly installed on the end face of the bottom and that engages with the first slope, and a mounting case is installed on the processing seat on the left side of the first sliding case. , A hydraulic tank is fixedly installed on the mounting housing, a hydraulic housing is installed on the hydraulic tank, and a partition extending downward is fixedly installed on an inner top wall of the hydraulic housing. The partition divides the hydraulic casing into a left hydraulic casing and a right hydraulic casing, and is installed so that the left hydraulic casing and the right hydraulic casing communicate with each other, and the fourth casing is installed on the left side of the mounting casing. A sliding housing is installed, a hydraulic device is installed on the fourth sliding housing, and a first through hole vertically penetrating is installed on an inner top wall of the left hydraulic housing. A piston plate is installed on the body, and the first through hole is attached to the top of the piston plate. A first guide rod penetrating through the second sliding housing and fixedly installed on the right side of the inner top wall of the mounting housing. A second through hole is vertically installed on the inner top wall of the housing, a sliding arm is installed on the right hydraulic housing, and the second through hole is installed on the top of the sliding arm and The second guide rod that goes into the second rotary housing of is fixedly installed, and the punching device is installed on the processing seat, which greatly reduces the use of labor and at the same time enhances the automation of the present invention and increases the processing efficiency. Increase.

In order to more clearly describe the technical solutions in the embodiments of the present invention and the existing technology, a brief introduction is given below to the accompanying drawings that should be used in the description of the embodiments and the existing technology. It will be understood that the accompanying drawings in the following description are only some embodiments of the present invention, and it is based on these accompanying drawings on the assumption that ordinary engineers in this field do not pay creative labor. The attached figure can be obtained.

In order to explain the present invention in detail in conjunction with FIGS. 1 and 2 below and to explain it conveniently, the following directions are defined as follows: FIG. 1 is a front view of the device of the present invention, and The left, right, front, and rear directions are the same as the top, bottom, left, right, front, and rear directions of the self-projection relationship in FIG.
FIG. 1 is a schematic view of the internal structure of a stable folding type domestic stepladder according to the present invention. FIG. 2 is a schematic view of the enlarged structure of A in FIG.

All features disclosed in this specification, or all disclosed methods and steps in a process, may be combined in any manner other than mutually exclusive features or steps.

All features disclosed in this invention may be replaced by alternative features having other equivalent or similar purposes, unless specifically stated otherwise. In other words, unless stated otherwise, all features are just one example in a series of equivalent or similar features.

As shown in FIGS. 1 and 2, the stable folding type domestic stepping device of the present invention includes a housing 9 and a working seat 10 fixedly installed in the housing 9, and penetrates the working seat 10 back and forth. The first sliding housing 11 is installed, the first rotating housing 21 is installed so as to communicate with the inner bottom wall of the first sliding housing 11, and the first sliding housing 11 extends forward and backward. A first sliding plate 22 is installed, a groove 19 extending forward and backward is installed on the end surface of the top of the first sliding plate 22, and two internal tooth splines 28 are left and right in the first sliding plate 22. The second sliding housing 32 is installed on the processing seat 10 on the left side of the first rotating housing 21 symmetrically and so as to open downward, and the first rotating housing 21 and the above The first rotary shaft 23 is rotatably installed between the second sliding casings 32, and the left extending end of the first rotating shaft 23 enters the second sliding casing 32 and the right extending end is It is rotatably installed on the inner wall on the right side of the first rotary housing 21, and the two rotary gears 24 located in the first rotary housing 21 are installed on the first rotary shaft 21. The two rotary gears 24 are symmetrical, the sliding block 29 is installed in the second sliding housing 32, and the second sliding plate 33 is fixedly attached to the left end surface of the sliding block 29. A first slope 35 is fixedly installed at the left end of the second sliding plate 33, a first motor 28 is installed at the right end surface of the sliding block 29, and at the right end surface of the first motor 28. A spline bearing 26 is installed so that it can be transmitted, a rightward spline groove is installed in the spline bearing 26, a spline shaft 25 is connected to the spline in the spline groove, and the right end of the spline shaft 25 is the Fixedly connected to the first rotating shaft 23 of the second sliding housing 32, a third sliding housing 38 is installed on the left end wall of the second sliding housing 32, and the third sliding housing 38 has a third sliding plate. 37 is installed, a rack is installed on the right end surface of the third sliding plate 37, and a second slope 34 that is mutually engaged with the first slope 35 is fixedly installed on the bottom end surface. A mounting housing is installed on the processing seat 10 on the left side of the first sliding housing 11, a hydraulic tank 53 is fixedly installed on the mounting housing, and a hydraulic housing is installed on the hydraulic tank 53. The partition 55 extending downward is fixedly installed on the inner top wall of the hydraulic enclosure, and the partition 55 divides the hydraulic enclosure into a left hydraulic enclosure 54 and a right hydraulic enclosure 57. The left hydraulic housing 54 and the right hydraulic housing 57 are installed so as to communicate with each other, the fourth sliding housing 45 is installed on the left side of the mounting housing, and the fourth sliding housing 45 is mounted on the left sliding housing 45. A hydraulic device is installed, a first through hole vertically penetrating the inner top wall of the left hydraulic housing 54 is installed, a piston plate 56 is installed in the left hydraulic housing 54, and the piston plate A first guide rod 47 penetrating the first through hole and entering the fourth sliding housing 45 is fixedly installed on the top of 56, and a second guide rod 47 is installed on the right side of the inner top wall of the mounting housing. The rotating housing 48 is installed, a second through hole vertically penetrating through the inner top wall of the right hydraulic housing 57 is installed, and a sliding arm 59 is installed in the right hydraulic housing 57, and the sliding A second guide rod 58 penetrating the second through hole and entering the second rotary housing 48 is fixedly installed on the top of the arm 59, and a punching device and a lighting device are installed on the processing seat 10. To be done.

As a useful and example, there is therein a fifth sliding housing in which the punching device is installed on the inner top wall of the first sliding housing 11 and in communication with the second rotating housing 48. The second slide block 13 is attached to the fifth slide housing 12 including the body 12, and the second motor 14 is fixedly installed on the end face of the bottom portion of the second slide block 13, A drill 15 extending downward is movably installed at the bottom of the motor 14, first stop grooves 16 are installed symmetrically on the left and right end walls of the fifth sliding housing 12, and the first stop groove 16 is provided with The first stop block 17 fixedly connected to the second sliding block 13 is installed, and the first connection block 52 is fixedly installed on the end face of the top of the second sliding block 13 to A first connection lever that enters the second rotary housing 48 is connected to the connection block 52 by a hinge, and a hinge arm 50 is rotatably installed on the second rotary housing 48 through a second rotation shaft. The upper and lower ends of the hinge arm 50 are connected to the top of the first connecting lever and the top of the second guide rod 58 by hinges.

As an informative example, the hydraulic device is installed in the fourth sliding plate 46 installed in the fourth sliding housing 45 or the inner top wall of the fourth sliding housing 11 therein. A hydraulic cylinder 44 is installed and is communicatively connected to the top of the fourth slide plate 46, the end surface of the fourth slide plate 46 being fixedly connected to the top of the first guide rod 47. A third rotating casing 39 is installed so as to communicate between the fourth sliding casing 11 and the third sliding casing 38, and a rotating ring 41 is provided on the third rotating casing 39. It is rotatably installed through a rotating shaft 40, a sector gear 36 that meshes with the rack is fixedly attached to the left side of the outer circle of the rotating ring 41, and the sector gear 36 to the right side of the outer circle of the rotating ring 41. The second connection lever 42 that fits into the four-slip housing 45 is fixedly installed, and the second connection block 43 that is hingedly connected to the second connection lever 42 is fixed to the left end surface of the first guide rod 47. Is installed in.

As a useful and example, there are symmetrically installed in the left and right end walls of the first sliding housing second stop grooves extending in the front-rear direction, and in the second stop groove, the first sliding grooves are provided. A second stop block 20 is installed which is fixedly connected to the plate 22.

As an informative example, a third stop groove 31 is symmetrically installed in the upper and lower end walls of the second slide housing 32, and the slide block 29 is provided in the third stop groove 31. A third stop block 27 that is fixedly connected to the third stop block 27 is installed, and a tension coil spring 30 that abuts the third stop block 27 is attached to the inner wall on the left side of the third stop groove 31.

As an informative example, a fourth stop groove 60 is installed symmetrically in the right end surface of the partition 55 and the inner wall on the right side of the right hydraulic housing 57 therein, and the fourth stop groove is formed. A fourth stop block 61 fixedly attached to the sliding arm 59 is installed in the groove 60, and a compression spring 62 that abuts the fourth stop block 61 is fixed to the top of the fourth stop groove 60. Attached, the compression spring 62 is used to press down the sliding arm 59.

As an advantageous and example, a sealing ring 581 is installed in the first through hole and the second through hole therein to increase the hermeticity.

As an informative example, the lighting device is fixed in the lamp panel 61 and the bottom of the lamp panel 61, which are symmetrically installed on the tops of the left and right end surfaces of the working seat 10. Through the above-mentioned illumination lamp 62, the illumination demand for night operation of the present apparatus can be satisfied.

When the device of the present invention is in the initial state, the top of the piston plate 56 abuts the inner top wall of the left hydraulic housing 54, and the third sliding plate is acted on by the action of the sector gear 36. 37 is located below and the bottom of the second inclined surface 34 abuts the inner bottom wall of the third sliding housing 38, and the first inclined surface 35 is completely attached to the second sliding housing 32. Retracting, the spline bearing 26 is connected to the spline groove, and under the action of the pressure of the hydraulic enclosure and the compression spring 62, the sliding arm 59 is located below and at the same time Under the action of the hinge arm 50 and the first connection lever 51, the end surface of the top of the second slide block 13 abuts against the top plate of the fifth slide housing 12, and the drill 15 moves. It is completely housed in the fifth sliding housing 12 described above.

When used, the raw material plate is placed on the first sliding plate 22 from the front side of the first sliding housing 11, and the first motor 28, the hydraulic cylinder 44, and the second motor 14 are operated, After the second motor 14 rotates, it drives and rotates the drill 15, and after the first motor 28 rotates, the first rotary shaft 23 and the rotary gear 24 through the spline bearing 26. To rotate and drive the first slide plate 22 to the rear side to slowly slide, and at the same time, propel the fourth slide plate downward after the hydraulic cylinder 44 is operated, The fourth slide plate 46 slides down the first guide rod 47 in the process of moving downward, and the first connecting rod 47 slides downward when the first guide rod 47 slides down. The ring 41 is driven to rotate together with the sector gear 36, and after the sector gear 36 rotates, the third slide plate is driven through the rack and slides up to move the first slope. After gradually disengaging 35 from the engagement with the right end face of the third sliding plate 37, the sliding block 29 slides to the left under the action of the tension coil spring 30, and The first slope 35 enters the third sliding housing 38, the spline shaft 25 and the spline groove are disengaged, the rotary gear 24 stops rotating, the first sliding plate 22 is The slide is stopped, and when the first guide rod 47 slides downward, the piston plate 56 slides downward, and the piston plate 56 slides downward. The gas is pressed against the right hydraulic enclosure 57, the slide arm 59 slides up, and after the slide arm 59 slides up, the hinge arm 50 is moved up through the second guide rod 58. The hinge arm 50 is rotated after being pressed, and at the same time, the second slide block 13 is pressed through the first connecting lever 51 to move downward together with the drill 15, When the end surface of the top of the third sliding plate 37 of the above abuts the inner top wall of the third sliding housing 38, the end surface of the top of the fourth sliding board 46 is the inner wall of the fourth sliding housing 45. The piston plate 56 is located on the inner bottom wall of the left hydraulic housing 54, the end surface of the top of the slide arm 59 butts against the inner top wall of the right hydraulic housing 57, The drill 15 is driven by the second motor 14 Form complete the perforation of the raw material plate, perforation can be realized to perform at equal intervals along a straight line in the raw material plate by controlling the reciprocating telescopic movement of the hydraulic cylinder 44.

After the punching operation of the first raw material plate is completed, unloading is performed from the rear side of the first sliding housing 11, and at the same time, the second raw material plate of the first sliding housing 11 is removed. It is placed on the first sliding plate 22 from the rear side, and at the same time, the first motor 28 is controlled and reversed to perform the second punching operation.

The beneficial effects of the present invention are:

The device of the present invention has a simple structure, is convenient to use, and has a first sliding housing that penetrates the processing seat in the front-rear direction and has a first rotating housing on the inner bottom wall of the first sliding housing. Installed so as to communicate with each other, a first slide plate extending in the front-rear direction is installed in the first slide housing, a passage groove extending in the front-rear direction is installed in an end face of the top part of the first slide plate, and the first slide plate is installed. In the sliding plate, two internal tooth splines are installed so as to be symmetrical and open downward, and a second sliding housing is installed on the processing seat on the left side of the first rotating housing. A first rotating shaft is rotatably installed between the first rotating casing and the second sliding casing, and the left end of the first rotating shaft extends into the second sliding casing. The extending end on the right side is rotatably installed on the inner wall on the right side of the first rotary housing, and the two rotary gears located in the first rotary housing are installed on the first rotary shaft. The two rotary gears are bilaterally symmetric, a sliding block is installed on the second sliding housing, and a second sliding plate is fixedly attached to an end surface on the left side of the sliding block. The first slope is fixedly installed on the left end of the, the first motor is installed on the right end of the sliding block, and the spline bearing is installed on the right end of the first motor so that it can be transmitted. A rightward spline groove is installed in the spline bearing, a spline shaft is connected to the spline in the spline groove, and a right end of the spline shaft is fixedly connected to the first rotating shaft, A third sliding case is installed on the left side end wall of the second sliding case, a third sliding board is installed on the third sliding case, and a rack is installed on the right end surface of the third sliding case. A second slope that is installed and fixedly installed on the end face of the bottom and that engages with the first slope, and a mounting case is installed on the processing seat on the left side of the first sliding case. , A hydraulic tank is fixedly installed on the mounting housing, a hydraulic housing is installed on the hydraulic tank, and a partition extending downward is fixedly installed on an inner top wall of the hydraulic housing. The partition divides the hydraulic casing into a left hydraulic casing and a right hydraulic casing, and is installed so that the left hydraulic casing and the right hydraulic casing communicate with each other, and the fourth casing is installed on the left side of the mounting casing. A sliding housing is installed, a hydraulic device is installed on the fourth sliding housing, and a first through hole vertically penetrating is installed on an inner top wall of the left hydraulic housing. A piston plate is installed on the body, and the first through hole is attached to the top of the piston plate. A first guide rod penetrating through the second sliding housing and fixedly installed on the right side of the inner top wall of the mounting housing. A second through hole is vertically installed on the inner top wall of the housing, a sliding arm is installed on the right hydraulic housing, and the second through hole is installed on the top of the sliding arm and The second guide rod that goes into the second rotary housing of is fixedly installed, and the punching device is installed on the processing seat, which greatly reduces the use of labor and at the same time enhances the automation of the present invention and increases the processing efficiency. Increase.

The basic principle, main features and advantages of the present invention have been expressed and explained above. It should be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and the above-described embodiments and the description thereof are the principles of the present invention and do not depart from the meaning and principles of the present invention. There are various changes and improvements in the present invention on the premise, and these changes and improvements are within the protection scope of the present invention. The protection scope of the present invention is defined in the same content as the attached claim.

Claims (1)

A stable foldable household stepping device, comprising a housing and a processing seat fixedly installed in the housing, wherein the processing seat is provided with a first sliding housing penetrating forward and backward, The first rotary housing is installed so as to communicate with the inner bottom wall of the one sliding housing, the first sliding board extending in the front-rear direction is installed in the first sliding housing, and the top of the first sliding board is installed. A groove extending forward and backward is installed on the end face, and two internal tooth splines are installed in the first sliding plate so as to be bilaterally symmetrical and open downward. A second sliding housing is installed on the processing seat, and a first rotating shaft is rotatably installed between the first rotating housing and the second sliding housing. The left end extending into the second sliding housing and the right extending end rotatably installed with the inner wall on the right side of the first rotating housing, and the first rotating shaft includes the first rotating shaft. Two rotating gears located in the housing are installed, the two rotating gears are bilaterally symmetrical, a sliding block is installed in the second sliding housing, and a second sliding block is installed on the left end face of the sliding block. A sliding plate is fixedly mounted, a first slope is fixedly installed on the left end of the second sliding plate, and a first motor is installed on the right end of the sliding block. A spline bearing is movably installed on the right end surface of the motor, a rightward spline groove is installed on the spline bearing, a spline shaft is connected to the spline in the spline groove, and a right end of the spline shaft is installed. Is fixedly connected to the first rotating shaft, a third sliding case is installed on the left end wall of the second sliding case, and a third sliding plate is installed on the third sliding case. The rack is installed on the right side end surface of the third sliding plate, and the second slope that interengages with the first slope is fixedly installed on the bottom end surface. A mounting case is installed on the processing seat on the left side of the body, a hydraulic tank is fixedly installed on the mounting case, and a hydraulic case is installed on the hydraulic tank. A partition extending downward is fixedly installed on the top wall, and the partition divides the hydraulic enclosure into a left hydraulic enclosure and a right hydraulic enclosure, and the left hydraulic enclosure and the right hydraulic enclosure communicate with each other. Installed on the left side of the mounting housing, the fourth sliding housing is installed on the fourth sliding housing, and the hydraulic device is installed on the fourth sliding housing. A first through hole is installed to penetrate the left hydraulic enclosure. A tongue plate is installed, a first guide rod penetrating the first through hole and entering the fourth sliding housing is fixedly installed on the top of the piston board, and A second rotating housing is installed on the right side of the top wall, a second through hole is formed vertically through the inner top wall of the right hydraulic housing, and a sliding arm is installed on the right hydraulic housing. A second guide rod penetrating the second through hole and entering the second rotary housing is fixedly installed on the top of the sliding arm, and a punching device and a lighting device are installed on the processing seat. A second sliding housing is installed on the inner top wall of the first sliding housing and communicates with the second rotating housing, and the second sliding housing is provided with a second sliding housing. A sliding block is attached, a second motor is fixedly installed on the bottom end surface of the second sliding block, and a downwardly extending drill is movably installed on the bottom of the second motor. First stop grooves are installed symmetrically on the left and right end walls of the sliding housing, and a first stop block fixedly connected to the second sliding block is installed in the first stop groove. A first connection block is fixedly installed on the end surface of the top of the sliding block, a first connection lever that enters the second rotary housing is connected to the first connection block by a hinge, and the second rotary housing is connected. A hinge arm is rotatably installed on the body through a second rotation shaft, and the upper and lower ends of the hinge arm are connected to the top of the first connecting lever and the top of the second guide rod by a hinge, respectively, and A hydraulic device is installed on the fourth sliding plate installed on the fourth sliding housing or on the inner top wall of the fourth sliding housing, and is connected to the upper part of the fourth sliding board for transmission. A hydraulic cylinder, the end surface of the fourth sliding plate is fixedly connected to the top of the first guide rod, and a third rotation is made between the fourth sliding housing and the third sliding housing. The housing is installed so as to communicate with each other, the rotating ring is rotatably installed on the third rotating housing through a third rotating shaft, and a sector gear meshing with the rack is provided on the left side of the outer circle of the rotating ring. A second connecting lever, which is fixedly mounted and enters the fourth sliding housing, is fixedly installed on the right side of the outer circle of the rotating ring, and the second connecting lever is installed on the left end face of the first guide rod. A second connection block for hinged connection with the two connection levers is fixedly installed, and second stop grooves extending in the front and rear direction are provided on the left and right end walls of the first sliding housing. The second stop block is installed symmetrically, the second stop block fixedly connected to the first slide plate is installed in the second stop groove, and the third stop groove is symmetrical in the upper and lower end walls of the second slide housing. Installed in the third stop groove, a third stop block fixedly connected to the sliding block is installed, and a pulling butt against the third stop block on the inner wall on the left side of the third stop groove. A coil spring is attached, a fourth stop groove is symmetrically installed on the right end surface of the partition and the inner wall on the right side of the right hydraulic housing, and the fourth stop groove is fixed to the slide arm in a fixed manner. A fourth stop block to be attached is installed, and a compression spring that abuts the fourth stop block is fixedly attached to the top of the fourth stop groove, the first through hole and the second through hole. A sealing ring is installed in the lighting device, and the lighting device includes a lamp panel symmetrically installed on tops of left and right end surfaces of the processing seat, and an illumination lamp fixedly installed on the bottom of the lamp panel. A stable foldable domestic stepladder characterized by

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