阅读说明：本技术 一种能够旋转的可移动建筑设备吊装装置 (Movable building equipment hoisting device capable of rotating ) 是由 王芳 于 2020-06-22 设计创作，主要内容包括：本发明公开了一种能够旋转的可移动建筑设备吊装装置,包括第一底座、移动装置、第一电机、保险装置、配重杆、配重块、第一底盘、第一撑脚、第一脚轮、第二电机、吊绳、升降柱和第一液压缸等；本发明结构合理简单、生产成本低、安装方便,功能齐全,通过设置了移动装置,在第二底盘下表面设置了定向轮,通过拉动配重杆干可以在复杂的施工现场轻松的移动,方便了现成的即时施工,通过设置的第二电机可以使吊具及保险装置等三百六十度转动,使施吊方向更加自由,大大加强了工作的效率。(The invention discloses a rotatable lifting device for movable building equipment, which comprises a first base, a moving device, a first motor, a safety device, a counterweight rod, a counterweight block, a first chassis, a first supporting leg, a first trundle, a second motor, a lifting rope, a lifting column, a first hydraulic cylinder and the like, wherein the first base is fixedly connected with the first motor; the invention has reasonable and simple structure, low production cost, convenient installation and complete functions, can easily move on a complex construction site by pulling the counterweight rod through arranging the moving device and arranging the directional wheel on the lower surface of the second chassis, is convenient for ready-made instant construction, can rotate a lifting appliance, a safety device and the like by three hundred and sixty degrees through the arranged second motor, ensures that the lifting direction is more free, and greatly enhances the working efficiency.)

1. The utility model provides a portable construction equipment hoist device that can rotate which characterized in that: the lifting device comprises a first base (1), a moving device (2), a first motor (3), a safety device (4), a counterweight rod (5), a counterweight block (6), a first chassis (7), a first supporting leg (8), a first caster (9), a second motor (10), a lifting rope (11), a lifting column (12), a first hydraulic cylinder (13), a lifting column (14), a push plate (15), a supporting beam (16), a first fixing rod (17), a second fixing rod (18), a safety clamp device (19), a lifting hook (20), a movable pulley (21), a first fixed pulley (22), a second fixed pulley (23), a bearing plate (24) and a lifting ring (25);

a first motor (3) is fixedly connected in a cavity of the first base (1), a bearing plate (24) is fixedly connected to the lower surface of the first base (1), and a safety device (4) is arranged on the upper surface of the first base (1);

bearing plate (24) right side surface articulates there is counterweight rod (5), counterweight rod (5) right side top fixedly connected with balancing weight (6), first chassis (7) of surface fixed connection under balancing weight (6), first chassis (7) left side fixedly connected with first spike (8), first chassis (7) lower surface articulates there is first truckle (9). The lower surface of the bearing plate (24) is provided with a moving device (2);

the left side of the upper surface of the safety device (4) is fixedly connected with a lifting column (12), and the right side of the upper surface of the safety device (4) is fixedly connected with a second motor (10);

the bottom in the chamber of the lifting column (12) is fixedly connected with a first hydraulic cylinder (13), a push plate (15) is fixedly connected to the output end of the first hydraulic cylinder (13), a lifting column (14) is arranged on the upper side of the push plate (15), the lifting column (14) is connected in a cavity of the lifting column (12) in a sliding way, the top end of the upper side of the lifting column (14) is fixedly connected with a supporting beam (16), a second fixed rod (18) is fixedly connected to the left side of the upper surface of the supporting beam (16), the right side of the upper surface of the supporting beam (16) is fixedly connected with a first fixing rod (17), a safety clip device (19) is arranged on the left side of the lower surface of the supporting beam (16), a hanging ring (25) is arranged on the right side of the safety clip device (19), a second fixed pulley (23) is hinged on the second fixed rod (18), and a first fixed pulley (22) is hinged on the first fixed rod (17);

be equipped with lifting rope (11) on second motor (10) output, lifting rope (11) pass first fixed pulley (22), second fixed pulley and rings (25) and connect on safeties (4), sliding connection has movable pulley (21) on lifting rope (11), it has lifting hook (20) to articulate on movable pulley (21).

2. A rotatable mobile construction equipment hoist device according to claim 1, characterized in that: the mobile device (2) has the specific structure that: comprises a second chassis (200), a support rod (201), a second spring (202), a wheel housing (203), a second caster (204) and a stabilizing device (205);

the upper surface of the second chassis (200) is fixedly connected with a stabilizing device (205), the stabilizing device (205) is connected to the lower surface of the first base (1), and the lower surface of the second chassis (200) is fixedly connected with a supporting rod (201);

four support rods (201) are arranged and are distributed diagonally;

all parcel is connected with second spring (202) on bracing piece (201) surface, bracing piece (201) lower surface all fixed connection has wheel housing (203), all articulated in wheel housing (203) have second truckle (204).

3. A rotatable mobile construction equipment hoist device according to claim 2, characterized in that: the specific structure of the stabilizing device (205) is as follows: comprises a first cover shell (2050), a third hydraulic cylinder (2051), a connecting rod (2052), an angle block (2053), a support column (2054) and a second arm brace (2055);

first housing (2050) fixed connection is on first base (1) lower surface, upside fixedly connected with third pneumatic cylinder (2051) in first housing (2050) cavity, it has connecting rod (2052) to articulate on third pneumatic cylinder (2051) the output, connecting rod (2052) have four, are the diagonal branch, connecting rod (2052) lower extreme all articulates there is angle piece (2053), all articulate on angle piece (2053) has support column (2054), the equal fixedly connected with second spike (2055) of support column (2054) lower extreme.

4. A rotatable mobile construction equipment hoist device according to claim 1, characterized in that: the safety device (4) has the specific structure that: the device comprises a second cover shell (400), a third spring (401), a safety block (402), a snap ring (403), a safety plate (404), a fourth spring (405) and a pushing plate (406);

the lower surface of the second cover shell (400) is fixedly connected to the output end of the second motor (10), the top end of the right side in the cavity of the second housing (400) is fixedly connected with a third spring (401), a pushing plate (406) is fixedly connected to the top end of the left side of the third spring (401), the pushing plate (406) is connected in a sliding manner in the cavity of the second cover shell (400), the upper end of the left side surface of the push plate (406) is fixedly connected with four springs (405), a safety block (402) is fixedly connected to the top end of the left side of the four springs (405), the safety block (402) is connected to the upper end of the left side in the cavity of the second cover shell (400) in a sliding way, a snap ring (403) is fixedly connected to the left side surface of the safety block (402), a lifting rope (11) is fixedly connected to the snap ring (403), the lower end of the left side surface of the push plate (406) is fixedly connected with a safety plate (404), the safety plate (404) is connected to the inner surface and the lower surface of the cavity of the second cover shell (400) in a sliding mode.

5. A rotatable mobile construction equipment hoist device according to claim 1, characterized in that: the safety clip device (19) has the following specific structure: comprises a connecting column (190), a second hydraulic cylinder (191), a clamping block (192), a connecting plate (193), a first spring (194) and a clamping hand (195);

spliced pole (190) fixed connection is on a supporting beam (16) lower surface left side, spliced pole (190) lower extreme fixedly connected with second pneumatic cylinder (191), fixedly connected with presss from both sides tight piece (192) on second pneumatic cylinder (191) output, it has two to press from both sides tight piece (192), is the symmetric distribution, press from both sides the equal fixedly connected with connecting plate (193) of tight piece (192) inboard, two the first spring (194) of fixedly connected with between connecting plate (193), the equal fixedly connected with tong (195) in connecting plate (193) lower surface outside.

6. A rotatable mobile construction equipment hoist device according to claim 1, characterized in that: the lifting rope (11) is a stainless steel lifting rope.

7. A rotatable mobile construction equipment hoist device according to claim 1, characterized in that: the second motor (10) is a servo motor or a variable frequency motor.

8. A rotatable mobile construction equipment hoist device according to claim 4, characterized in that: the safety plate (404) is a plastic soft plate.

Technical Field

The invention relates to the field of building equipment, in particular to a rotatable movable building equipment hoisting device.

Background

The hoisting device is an important device for hoisting and transporting construction machinery and construction materials in construction engineering, is very convenient to use, saves time and labor, and has high working efficiency.

However, these large-scale devices are not particularly suitable for civil small-scale building construction, and people have to choose a small-scale hoisting device to work due to the terrain, economy and other reasons, but the existing small-scale hoisting device is inconvenient to move, inconvenient to adjust the direction and position, poor in stability, low in safety coefficient, and incapable of well increasing the working efficiency of construction work, so a technology is needed to solve the problems.

Disclosure of Invention

The invention aims to solve the problems, and provides a rotatable movable building equipment hoisting device, which solves the problems that a small hoisting device is inconvenient to move, inconvenient to adjust the direction and the position, poor in stability, low in safety coefficient and incapable of well increasing the working efficiency of construction operation.

In order to solve the above problems, the present invention provides a technical solution: the utility model provides a portable construction equipment hoist device that can rotate, its innovation point lies in: the lifting device comprises a first base, a moving device, a first motor, a safety device, a counterweight rod, a counterweight block, a first chassis, a first supporting leg, a first trundle, a second motor, a lifting rope, a lifting column, a first hydraulic cylinder, a lifting column, a push plate, a supporting beam, a first fixed rod, a second fixed rod, a safety clamp device, a lifting hook, a movable pulley, a first fixed pulley, a second fixed pulley, a bearing plate and a lifting ring; a first motor is fixedly connected in the first base cavity, the lower surface of the first base is fixedly connected with a bearing plate, and the upper surface of the first base is provided with a safety device; the utility model discloses a bearing plate, including bearing plate, counterweight plate, first chassis left side fixedly connected with brace, first chassis lower surface articulates there is the counterweight rod, counterweight rod right side top fixedly connected with balancing weight, the first chassis of surface fixedly connected with, first chassis left side fixedly connected with brace, first chassis lower surface articulates there is first truckle. The lower surface of the bearing plate is provided with a moving device; the left side of the upper surface of the safety device is fixedly connected with a lifting column, and the right side of the upper surface of the safety device is fixedly connected with a second motor; the lifting column is characterized in that a first hydraulic cylinder is fixedly connected to the inner bottom of the lifting column cavity, a push plate is fixedly connected to the output end of the first hydraulic cylinder, a lifting column is arranged on the upper side of the push plate and is slidably connected into the lifting column cavity, a supporting beam is fixedly connected to the top end of the upper side of the lifting column, a second fixed rod is fixedly connected to the left side of the upper surface of the supporting beam, a first fixed rod is fixedly connected to the right side of the upper surface of the supporting beam, a safety clamp device is arranged on the left side of the lower surface of the supporting beam, a lifting ring is arranged on the right side of the safety clamp device, a second fixed pulley; the lifting rope is arranged on the output end of the second motor, the lifting rope penetrates through the first fixed pulley, the second fixed pulley and the lifting ring to be connected onto the safety device, the lifting rope is connected with the movable pulley in a sliding mode, and the movable pulley is hinged with a lifting hook.

Preferably, the specific structure of the mobile device is as follows: the device comprises a second chassis, a supporting rod, a second spring, a wheel cover, a second caster and a stabilizing device; the upper surface of the second chassis is fixedly connected with a stabilizing device, the stabilizing device is connected to the lower surface of the first base, and the lower surface of the second chassis is fixedly connected with a supporting rod; the four support rods are distributed in diagonal directions; the utility model discloses a bracing piece, including bracing piece, first spring, second spring, wheel housing, first truckle, second spring, first spring, second spring, first spring.

Preferably, the specific structure of the stabilizing device is as follows: the hydraulic support comprises a first housing, a third hydraulic cylinder, a connecting rod, an angle block, a support column and a second support leg; first housing fixed connection is on first base lower surface, upside fixedly connected with third pneumatic cylinder in the first housing cavity, it has the connecting rod to articulate on the third pneumatic cylinder output, the connecting rod has four, is the diagonal subsection, the connecting rod lower extreme all articulates there is the angle piece, all articulate on the angle piece has the support column, the equal fixedly connected with second spike of support column lower extreme.

Preferably, the safety device has a specific structure as follows: the safety device comprises a second cover shell, a third spring, a safety block, a clamping ring, a safety plate, a fourth spring and a pushing plate; fixed surface connects on the second motor output under the second housing, right side top fixedly connected with third spring in the second housing cavity, fixedly connected with push plate on the top of third spring left side, push plate sliding connection is in the second housing cavity, four springs of fixedly connected with on the surface of push plate left side, fixedly connected with safety block on the top of four springs left side, safety block sliding connection is left side upper end in the second housing cavity, fixedly connected with snap ring on the surface of safety block left side, fixedly connected with lifting rope on the snap ring, push plate left side surface lower extreme fixedly connected with safety plate, safety plate sliding connection is on the inner lower surface of second housing cavity.

Preferably, the safety clip device has the following specific structure: the clamping device comprises a connecting column, a second hydraulic cylinder, a clamping block, a connecting plate, a first spring and a clamping hand; spliced pole fixed connection is in a supporting beam lower surface left side, spliced pole lower extreme fixedly connected with second pneumatic cylinder, the tight piece of fixedly connected with clamp on the second pneumatic cylinder output, it has two to press from both sides tight piece, is the symmetric distribution, press from both sides the inboard equal fixedly connected with connecting plate of tight piece, two the first spring of fixedly connected with between the connecting plate, the equal fixedly connected with tong in the connecting plate lower surface outside.

Preferably, the lifting rope is a stainless steel lifting rope.

Preferably, the second motor is a servo motor or a variable frequency motor.

Preferably, the safety plate is a plastic soft plate.

The invention has the beneficial effects that:

(1) the invention has reasonable and simple structure, low production cost, convenient installation and complete functions, can easily move on a complex construction site by pulling the counterweight rod through arranging the moving device and arranging the directional wheel on the lower surface of the second chassis, is convenient for ready-made instant construction, can rotate a lifting appliance, a safety device and the like by three hundred and sixty degrees through the arranged second motor, ensures that the lifting direction is more free, and greatly enhances the working efficiency.

(2) The safety device is arranged, so that the safety plate in the safety device pushes the push plate to pop out through the third spring to protect the lifted material and surrounding workers due to sudden damage of the lifting rope, the working load of the lifting rope is reduced through the arrangement of the safety clamp device, the service life of the lifting rope is prolonged, and the cost and the occurrence of emergency are reduced.

(3) According to the invention, through the arranged stabilizing device, the vertical direction of the supporting column can be adjusted through the third hydraulic cylinder, the whole device can be stabilized when the supporting column is needed, the lifting is not needed, the movement of the device in working is not influenced, the whole device is more comfortable and humanized in use, and through the arranged balancing weight, the device can be stabilized when in lifting, and the device can be kept stable left and right when in moving and is not easy to turn on one's side.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of a mobile device according to the present invention.

Fig. 3 is a schematic structural diagram of the stabilizing device of the present invention.

Fig. 4 is a schematic structural diagram of the safety device of the present invention.

Fig. 5 is a schematic structural view of a safety clip device according to the present invention.

1-a first base; 2-a mobile device; 3-a first motor; 4-a safety device; 5-a counterweight rod; 6-a balancing weight; 7-a first chassis; 8-a first arm brace; 9-a first caster; 10-a second motor; 11-a lifting rope; 12-a lifting column; 13-a first hydraulic cylinder; 14-a lifting column; 15-push plate; 16-a support beam; 17-a first fixation bar; 18-a second fixation bar; 19-a safety clip device; 20-a hook; 21-a movable pulley; 22-a first fixed pulley; 23-a second fixed pulley; 24-a bearing plate; 25-a hoisting ring; 190-connecting column; 191-a second hydraulic cylinder; 192-a clamping block; 193-connecting plate; 194-a first spring; 195-a gripper; 200-a second chassis; 201-support rods; 202-a second spring; 203-wheel housing; 204-a second caster; 205-a stabilizing device; 400-a second housing; 401-a third spring; 402-a safety block; 403-snap ring; 404-a safety plate; 405-a fourth spring; 406-a push plate; 2050-first casing; 2051-a third hydraulic cylinder; 2052-connecting rod; 2053-angle block; 2054-support column; 2055-second arm brace.

Detailed Description

As shown in fig. 1, the following technical solutions are adopted in the present embodiment: a movable building equipment hoisting device capable of rotating comprises a first base 1, a moving device 2, a first motor 3, a safety device 4, a counterweight rod 5, a counterweight block 6, a first chassis 7, a first supporting leg 8, a first caster 9, a second motor 10, a lifting rope 11, a lifting column 12, a first hydraulic cylinder 13, a lifting column 14, a push plate 15, a supporting beam 16, a first fixing rod 17, a second fixing rod 18, a safety clamp device 19, a lifting hook 20, a movable pulley 21, a first fixed pulley 22, a second fixed pulley 23, a bearing plate 24 and a lifting ring 25; a first motor 3 is fixedly connected in the cavity of the first base 1, a bearing plate 24 is fixedly connected to the lower surface of the first base 1, and a safety device 4 is arranged on the upper surface of the first base 1; 24 right side surfaces of bearing plate articulate there is counterweight 5, 5 right side top fixedly connected with balancing weights 6 of counterweight, 6 first chassis 7 of surface fixedly connected with in balancing weights, 7 first props foot 8 of first chassis left side fixedly connected with, 7 lower surfaces on first chassis articulate there is first truckle 9. The lower surface of the bearing plate 24 is provided with a moving device 2; the left side of the upper surface of the safety device 4 is fixedly connected with a lifting column (12), and the right side of the upper surface of the safety device 4 is fixedly connected with a second motor 10; the bottom in the cavity of the lifting column (12) is fixedly connected with a first hydraulic cylinder 13, the output end of the first hydraulic cylinder 13 is fixedly connected with a push plate 15, the upper side of the push plate 15 is provided with a lifting column 14, the lifting column 14 is slidably connected in the cavity of the lifting column (12), the top end of the upper side of the lifting column 14 is fixedly connected with a supporting beam 16, the left side of the upper surface of the supporting beam 16 is fixedly connected with a second fixed rod 18, the right side of the upper surface of the supporting beam 16 is fixedly connected with a first fixed rod 17, the left side of the lower surface of the supporting beam 16 is provided with a safety clamp device 19, the right side of the safety clamp device 19 is provided with a lifting ring 25, the second fixed rod 18 is hinged with a second fixed; be equipped with lifting rope 11 on the second motor 10 output, lifting rope 11 passes first fixed pulley 22, second fixed pulley and rings 25 and connects on safeties 4, sliding connection has movable pulley 21 on lifting rope 11, it has lifting hook 20 to articulate on the movable pulley 21.

As shown in fig. 2, the specific structure of the mobile device 2 is as follows: comprises a second chassis 200, a support rod 201, a second spring 202, a wheel housing 203, a second caster 204 and a stabilizing device 205; the upper surface of the second chassis 200 is fixedly connected with a stabilizing device 205, the stabilizing device 205 is connected to the lower surface of the first base 1, and the lower surface of the second chassis 200 is fixedly connected with a supporting rod 201; four support rods 201 are arranged and are distributed diagonally; the outer surface of the supporting rod 201 is wrapped and connected with a second spring 202, the lower surface of the supporting rod 201 is fixedly connected with a wheel housing 203, and a second caster 204 is hinged in the wheel housing 203.

As shown in fig. 3, the specific structure of the stabilizing device 205: comprises a first cover piece 2050, a third hydraulic cylinder 2051, a connecting rod 2052, an angle block 2053, a support column 2054 and a second support foot 2055; the first housing 2050 is fixedly connected to the lower surface of the first base 1, a third hydraulic cylinder 2051 is fixedly connected to the inner upper side of the cavity of the first housing 2050, a connecting rod 2052 is hinged to the output end of the third hydraulic cylinder 2051, four connecting rods 2052 are arranged and are distributed diagonally, the lower end of each connecting rod 2052 is hinged to an angle block 2053, each angle block 2053 is hinged to a supporting column 2054, and the lower end of each supporting column 2054 is fixedly connected to a second supporting leg 2055.

As shown in fig. 4, the safety device 4 has the following specific structure: comprises a second cover 400, a third spring 401, a safety block 402, a snap ring 403, a safety plate 404, a fourth spring 405 and a pushing plate 406; fixed surface connects on the second motor 10 output end under the second housing 400, right side top fixedly connected with third spring 401 in the second housing 400 cavity, fixedly connected with pushing plate 406 on the top of third spring 401 left side, pushing plate 406 sliding connection is in second housing 400 cavity, four springs 405 of fixedly connected with on the surface of pushing plate 406 left side, fixedly connected with insurance block 402 on the top of four springs 405 left side, insurance block 402 sliding connection is at the left side upper end in second housing 400 cavity, fixedly connected with snap ring 403 on the surface of insurance block 402 left side, fixedly connected with lifting rope 11 on the snap ring 403, pushing plate 406 left side surface lower extreme fixedly connected with insurance plate 404, insurance plate 404 sliding connection is on the lower surface in the second housing 400 cavity.

As shown in fig. 5, the safety clip device 19 has the following specific structure: comprises a connecting column 190, a second hydraulic cylinder 191, a clamping block 192, a connecting plate 193, a first spring 194 and a clamping hand 195; the utility model discloses a supporting beam 16, including spliced pole 190, connecting pole 190 lower extreme fixedly connected with second pneumatic cylinder 191, fixedly connected with presss from both sides tight piece 192 on the second pneumatic cylinder 191 output, it has two to press from both sides tight piece 192, is the symmetric distribution, press from both sides the inboard equal fixedly connected with connecting plate 193 of tight piece 192, two the first spring 194 of fixedly connected with between the connecting plate 193, the equal fixedly connected with tong 195 in the connecting plate 193 lower surface outside.

Wherein the lifting rope 11 is a stainless steel lifting rope; the second motor 10 is a servo motor or a variable frequency motor; the safety plate 404 is a plastic soft plate.

The using state of the invention is as follows: when the device is used, firstly, steel pipes or other materials to be hung are bound safely, a third hydraulic cylinder 2051 is started to ascend to drive a connecting rod 2052, the connecting rod 2052 drives an angle block 2053 to ascend, a supporting column 2054 of the angle block 2053 is vertical to the bottom surface, the hoisting device is stabilized through a second supporting foot 2055, then, a second motor 10 is started, the second motor 10 drives a lifting rope 11, the lifting rope 11 drives a lifting hook 20 to descend, an object to be hung is hooked on the lifting hook 20, the second motor 10 is started to ascend, when the object ascends to a safety clamp device 19, a second hydraulic cylinder 191 is started to drive a clamping block 192 to move outwards, the clamping block 192 drives a connecting plate 193 and a clamp 195 to move outwards, when the object to be hung ascended to the upper part of the clamp 195, the second hydraulic cylinder 191 is closed to clamp the object to be hung, the direction of the object to be hung can be rotated by starting the first motor 3, after the proper direction is reached, the second hydraulic cylinder 191 is started to loosen the object to be hung, the, finish a handling work promptly, when needing to adjust the hoist and mount height, start first pneumatic cylinder 13 and promote push pedal 15 and rise, push pedal 15 promotes on the lift post 14, can promote the hoist and mount height, at first third pneumatic cylinder 2051 descends when needing to change the work place on the building site, support column 2054 and second spike 2055 rise, drive first truckle 9 and second truckle 204 through pulling counterweight 5 and move, balancing weight 6 can make and be difficult for turning on one's side when moving, if take place the lifting rope disconnection safety block 402 can lose power immediately when giving the weight of a job, third spring 401 promotes push plate 406, push plate 406 promotes safety plate 404 and leaves second housing 400, make its protection material and crowd around that drop.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

While there have been shown and described what are at present considered to be the fundamental principles of the invention and its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

The control mode of the invention is controlled by manually starting and closing the switch, the wiring diagram of the power element and the supply of the power source belong to the common knowledge in the field, and the invention is mainly used for protecting mechanical devices, so the control mode and the wiring arrangement are not explained in detail in the invention.