CN113786990A

CN113786990A - Sand and stone screening equipment for constructional engineering

Info

Publication number: CN113786990A
Application number: CN202111077436.7A
Authority: CN
Inventors: 李姿容
Original assignee: Shenzhen Zhonghechuang Construction Engineering Co ltd
Current assignee: Shenzhen Zhonghechuang Construction Engineering Co ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2021-12-14
Anticipated expiration: 2041-09-15
Also published as: CN113786990B

Abstract

The invention relates to sand screening equipment, in particular to sand screening equipment for constructional engineering. The utility model provides a sand and stone screening installation for building engineering that can filter fast, alleviate staff's work burden. A sand and stone screening installation for building engineering, including: a support; the material storage frame is arranged at the upper part of one side of the bracket; two sliding rails are arranged and are mounted on two sides of the top of the material storage frame; the screen is arranged between the two sliding rails in a sliding manner and used for screening sand and stones; the shielding frame is arranged between the tops of the two sliding rails; the shaking assembly is arranged between the bracket and the shielding frame; and the discharging assembly is arranged on the other side of the bracket. The output shaft of first gear motor rotates and makes the connecting plate horizontal slip, and then rocks about driving the screen cloth, improves gravel and sand screening efficiency, and great gravel and sand falls into the cylinder frame, and second gear motor's output shaft rotates and drives the worm and rotate, and then slowly releases great gravel and sand and carries out the ejection of compact.

Description

Sand and stone screening equipment for constructional engineering

Technical Field

The invention relates to sand screening equipment, in particular to sand screening equipment for constructional engineering.

Background

The sand and the gravel refer to sand and gravel, are common raw materials for building construction, and need to be filtered and sieved before use, so that stones or other impurities in the sand and the gravel are sieved out, and the influence on subsequent use is avoided.

At present, the traditional sand and stone screening mode is that sand and stone are generally thrown on a simple screen plate through manual work, impurities in the sand and stone or larger sand and stone are screened out through the screen plate, but screening through the mode needs to consume a large amount of time, the screening efficiency is low, and the manual screening labor intensity is high.

Therefore, it is necessary to provide a sand and stone screening apparatus for construction engineering, which can rapidly perform screening and reduce the workload of workers, to solve the above problems.

Disclosure of Invention

In order to overcome the defects of low efficiency and high labor intensity of the traditional screening mode, the invention aims to provide the sand and stone screening equipment for the building engineering, which can quickly screen and reduce the workload of workers.

The technical scheme is as follows: a sand and stone screening installation for building engineering, including: a support; the material storage frame is arranged at the upper part of one side of the bracket; two sliding rails are arranged and are mounted on two sides of the top of the material storage frame; the screen is arranged between the two sliding rails in a sliding manner and used for screening sand and stones; the shielding frame is arranged between the tops of the two sliding rails; the shaking assembly is arranged between the bracket and the shielding frame; and the discharging assembly is arranged on the other side of the bracket.

As an improvement of the scheme, the shaking assembly comprises: the control key is arranged on one side of the bracket close to the material storage frame; the connecting plate is arranged on one side of the top of the shielding frame in a sliding mode and is connected with the screen; the protective shell is arranged on one side of the top of the shielding frame and is positioned on one side of the connecting plate; the connecting plate is rotatably arranged on the connecting plate; the first speed reducing motor is arranged in the protective shell; and the disc is arranged on an output shaft of the first speed reducing motor and is connected with the connecting plate in a rotating mode.

As an improvement of the scheme, the discharging assembly comprises: the cylinder frame is arranged at the upper part of the other side of the bracket; the positioning frame is arranged on the upper part of the cylinder frame, and the sliding rails are connected with the positioning frame; the worm is rotatably arranged in the cylindrical frame, and two ends of the worm penetrate through the cylindrical frame; a shield case installed at one side of the cylinder frame; and the blocking plate is arranged at the upper part of the cylinder frame.

As the improvement of the scheme, the device also comprises a rotating assembly, and the rotating assembly comprises: the support frame is arranged on one side of the support frame close to the cylindrical frame; two fixing rods are arranged and are mounted at the upper part of the supporting frame; and the second speed reducing motor is arranged between the two fixing rods, and an output shaft of the second speed reducing motor is connected with the worm through a coupling.

As an improvement of the scheme, the device further comprises a pushing assembly, wherein the pushing assembly comprises: the inclined frame is arranged at a position on one side of the bracket far away from the support frame; the first straight angle plate is arranged at a position, far away from the support frame, of one side of the support, and the first straight angle plate is positioned below the inclined frame; the first electric push rod is arranged on the first straight angle plate; the second right-angle plate is arranged at the extending end of the first electric push rod and is positioned between the inclined frame and the first right-angle plate; the distance sensor is arranged on one side of the positioning frame close to the inclined frame; the arch-shaped rod is slidably arranged on one side of the positioning frame close to the distance sensor; the sliding plate is slidably mounted on the arch-shaped rod; two springs are arranged and are respectively arranged between the two sides of the sliding plate and the arch-shaped rod; and the convex block is arranged on one side of the worm close to the distance sensor and matched with the sliding plate.

As the improvement of above-mentioned scheme, still including stirring the subassembly, stir the subassembly including: the shell is arranged at the bottom of the material storage frame; the rotating rod is rotatably arranged at the lower part of the material storage frame, and one end of the rotating rod is positioned in the shell; the poking piece is arranged on the upper part of the rotating rod.

As the improvement of the proposal, the device also comprises a reciprocating component, and the reciprocating component comprises: the rotating shaft is arranged at the bottom of the rotating rod through a coupler; the gear is arranged on the rotating shaft; the second electric push rod is arranged inside the shell; the special-shaped plate is arranged at the extending end of the second electric push rod; the rack is arranged on the upper part of the special-shaped plate and meshed with the gear; the photoelectric sensor is arranged at the bottom of the inclined frame; and the contact plate is arranged on one side of the top of the second right-angle plate.

As an improvement of the above scheme, the method further comprises the following steps: the circuit box is arranged on one side, close to the cylinder frame, of the lower portion of the support, a storage battery, a control module and a power module are arranged in the circuit box, the storage battery supplies power to the whole device, the output end of the storage battery is electrically connected with the power module, the power module is connected with a power main switch through a circuit, the control module is electrically connected with the power module, and the control module is connected with a DS1302 clock circuit and a 24C02 circuit; the control key, the distance sensor and the photoelectric sensor are electrically connected, and the first speed reducing motor, the second speed reducing motor, the first electric push rod and the second electric push rod are connected with the control module through a peripheral circuit.

The invention has the beneficial effects that: 1. output shaft of first gear motor rotates and makes the connecting plate horizontal slip, and then drives the screen cloth and control and rock, improves gravel and sand screening efficiency.

2. In great gravel and sand fell into the cylinder frame, the output shaft of second gear motor rotated and drives the worm and rotate, and then slowly released great gravel and sand and carry out the ejection of compact.

3. The gravel and sand that the worm was released passes through sloping frame landing to ground, and simultaneously, the extension of first electric putter's extension end makes second right angle board rearward movement push away the accumulational gravel and sand in sloping frame below, conveniently lasts the ejection of compact.

4. The extension of second electric putter's extension end makes gear revolve with shortening, and then makes the stirring piece rotate and scrape the gravel and sand of adhesion on the storage frame down, avoids gravel and sand to pile up and causes the jam in storage frame lower part, influences gravel and sand outflow.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of the present invention.

Fig. 2 is a schematic perspective view of a second embodiment of the present invention.

Fig. 3 is a third perspective view of the present invention.

FIG. 4 is a schematic view of a first partially assembled body of the sloshing assembly of the present invention.

FIG. 5 is a schematic view of a second partially assembled body of the sloshing assembly of the present invention.

FIG. 6 is a perspective view of a third embodiment of the rocking assembly of the present invention.

FIG. 7 is a perspective view of a fourth embodiment of the rocking assembly of the present invention.

Fig. 8 is a schematic perspective view of the discharging assembly of the present invention.

Fig. 9 is a perspective view of the rotating assembly of the present invention.

FIG. 10 is a schematic view of a first partially assembled body of the pushing assembly of the present invention.

FIG. 11 is a schematic view of a second partial body structure of the pushing assembly of the present invention.

Fig. 12 is a perspective view of a third portion of the pushing assembly of the present invention.

Fig. 13 is a schematic perspective view of the toggle assembly of the present invention.

FIG. 14 is a schematic view of a first partially assembled body of the reciprocating assembly of the present invention.

FIG. 15 is a schematic view of a second partially assembled body of the reciprocating assembly of the present invention.

Fig. 16 is a circuit block diagram of the present invention.

Fig. 17 is a schematic circuit diagram of the present invention.

Number designation in the figures: 1. a bracket, 2, a material storage frame, 3, a sliding rail, 4, a screen, 5, a shielding frame, 51, a circuit box, 6, a shaking component, 61, a control key, 62, a connecting plate, 63, a protective shell, 64, a connecting plate, 65, a first speed reducing motor, 66, a disc, 7, a discharging component, 71, a cylinder frame, 72, a positioning frame, 73, a worm, 74, a shielding shell, 75, a blocking plate, 8, a rotating component, 81, a supporting frame, 82, a fixed rod, 83, a second speed reducing motor, 9, a pushing component, 91, an inclined frame, 92, a first straight angle plate, 93, a first electric push rod, 94, a second right angle plate, 95, a distance sensor, 96, an arch rod, 97, a sliding plate, 98, a spring, 99, a convex block, 10, a stirring component, 101, a shell, 102, a rotating rod, 103, a stirring sheet, 11, a reciprocating component, 111, a rotating shaft, 112, a gear, 113 and a second electric push rod, 114. a profile plate 115, a rack 116, a photoelectric sensor 117, a contact plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

The utility model provides a be used for gravel and sand screening installation for building engineering, as shown in fig. 1-8, including support 1, storage frame 2, slide rail 3, screen cloth 4, shielding frame 5, rock subassembly 6 and ejection of

compact subassembly

7, 1 right side upper portion of support is equipped with storage frame 2, both sides all are equipped with slide rail 3 around storage frame 2 top, the slidingtype is equipped with screen cloth 4 between two slide rails 3 around, be equipped with shielding frame 5 between two slide rails 3 tops in the front and back, be equipped with between support 1 and the shielding frame 5 and rock subassembly 6, support 1 left side is equipped with ejection of compact subassembly 7.

When using the device, the staff presses the power master switch to make equipment circular telegram, then the staff pours gravel and sand into shielding frame 5, filter gravel and sand through screen cloth 4, less gravel and sand falls into in storage frame 2, flow out through storage frame 2, and impurity of doping then conveys to ejection of compact subassembly 7 in through screen cloth 4 in great gravel and sand or gravel and sand, in the screening gravel and sand, it can drive screen cloth 4 horizontal slip in slide rail 3 to rock subassembly 6, thereby make screen cloth 4 shake, improve screening efficiency, after the equipment use is accomplished, the staff presses power master switch once more and makes equipment outage.

As shown in fig. 1 to 7, the shaking assembly 6 includes a control button 61, a connection plate 62, a protection shell 63, a connection plate 64, a first speed reduction motor 65 and a disc 66, the control button 61 is disposed on the front side of the right portion of the support 1, the connection plate 62 is slidably disposed on the right side of the top of the shielding frame 5, the connection plate 62 is connected with the screen 4, the protection shell 63 is disposed on the right side of the top of the shielding frame 5, the protection shell 63 is located on the left side of the connection plate 62, the connection plate 64 is rotatably disposed on the connection plate 62, the first speed reduction motor 65 is disposed in the protection shell 63, the disc 66 is disposed on an output shaft of the first speed reduction motor 65, and the disc 66 is rotatably connected with the connection plate 64.

When the device is used, a worker presses the control key 61, the control key 61 sends a signal, the control module receives the signal and then controls the output shaft of the first speed reducing motor 65 to rotate, the output shaft of the first speed reducing motor 65 rotates to drive the disc 66 to rotate, the disc 66 rotates to drive the connecting plate 62 to slide left and right through the connecting plate 64, the connecting plate 62 slides left and right to drive the screen 4 to slide left and right in the sliding rail 3, so that the screen 4 shakes, the screening efficiency of the sand and stone is improved, after the screening of the sand and stone is completed, the worker presses the control key 61 again, the control key 61 sends the signal, the control module receives the signal and then controls the first speed reducing motor 65 to close, and therefore the screen 4 can shake, and the screening efficiency of the sand and stone is improved.

As shown in fig. 1, 2, 3, 8, 9, 10, 11, 12 and 15, the discharging assembly 7 includes a cylinder frame 71, a positioning frame 72, a worm 73, a shielding shell 74 and a blocking plate 75, the cylinder frame 71 is disposed on the upper portion of the left side of the support 1, the positioning frame 72 is disposed on the upper portion of the cylinder frame 71, the slide rails 3 are all connected with the positioning frame 72, the worm 73 is rotatably disposed in the cylinder frame 71, the shielding shell 74 is disposed on the rear side of the cylinder frame 71, and the blocking plate 75 is disposed on the left side of the cylinder frame 71.

When the device is used, the screen 4 screens out large sand and stones and falls into the cylinder frame 71, meanwhile, the blocking plate 75 can avoid the sand and stones from splashing, then the worker rotates the worm 73, the worm 73 pushes the sand and stones to move backwards while rotating, and then the large sand and stones are pushed out from the rear side of the cylinder frame 71, so that the large sand and stones can be pushed out.

Example 2

On the basis of embodiment 1, as shown in fig. 1, fig. 2, fig. 3 and fig. 9, the power transmission device further includes a rotating assembly 8, the rotating assembly 8 includes a supporting frame 81, a fixing rod 82 and a second speed reduction motor 83, the supporting frame 81 is disposed on the front side of the left portion of the support 1, two fixing rods 82 are disposed on the upper portion of the supporting frame 81, the second speed reduction motor 83 is disposed between the two fixing rods 82, and an output shaft of the second speed reduction motor 83 is connected to the worm 73 through a coupling.

When the device is used, a worker presses the control key 61, the control module receives a signal and simultaneously controls the output shaft of the second speed reducing motor 83 to rotate, the output shaft of the second speed reducing motor 83 rotates to drive the worm 73 to slowly rotate to push out large sand and stones from the rear side of the cylinder frame 71, when the worker presses the control key 61 again, the control module receives the signal and simultaneously controls the second speed reducing motor 83 to close, and therefore the worm 73 can be driven to rotate, and the worm 73 does not need to be rotated manually.

On the basis of the embodiment 1, as shown in fig. 2, 10, 11, 12 and 15, the pushing assembly 9 is further included, the pushing assembly 9 includes a slant frame 91, a first right-angle plate 92, a first electric push rod 93, a second right-angle plate 94, a distance sensor 95, an arch-shaped rod 96, a sliding plate 97, a spring 98 and a protrusion 99, the slant frame 91 is disposed on the rear side of the left portion of the bracket 1, the first right-angle plate 92 is disposed below the slant frame 91, the first electric push rod 93 is disposed on the first right-angle plate 92, the second right-angle plate 94 is disposed at the extended end of the first electric push rod 93, the second right-angle plate 94 is disposed between the slant frame 91 and the first right-angle plate 92, the distance sensor 95 is disposed on the rear side of the positioning frame 72, the arch-angle rod 96 is slidably disposed on the rear side of the positioning frame 72, the sliding plate 97 is slidably disposed on the arch-shaped rod 96, the sliding plate 97 is wound with the springs 98, the worm 73 is provided with a projection 99 at the rear side, and the projection 99 is engaged with the slide plate 97.

When the device is used, large sand and stones in the cylindrical frame 71 slide to the ground through the inclined frame 91, meanwhile, the worm 73 rotates to drive the projection 99 to rotate, when the projection 99 rotates to be in contact with the sliding plate 97, the projection 99 rotates to press the sliding plate 97 to slide upwards on the arched rod 96, the spring 98 deforms, when the distance sensor 95 senses that the distance between the projection 99 and the sliding plate 97 reaches a preset value, the distance sensor 95 sends a signal, the control module receives the signal and controls the extension end of the first electric push rod 93 to extend for one second, the extension end of the first electric push rod 93 extends to drive the second right-angle plate 94 to move backwards to push away the sand and stones stacked below the inclined frame 91, when the projection 99 rotates to be separated from the sliding plate 97, under the reset action of the spring 98, the sliding plate 97 slides downwards to reset along with the projection, and when the distance between the distance sensor 95 and the sliding plate 97 returns to the preset value, distance sensor 95 signals, and control module receives the extension end of the first electric putter 93 of control after the signal and shortens a second, and then makes the second right-angle board 94 move forward and reset, so, can push away accumulational gravel and sand, convenient follow-up ejection of compact.

On the basis of the embodiment 1, as shown in fig. 1, fig. 3, fig. 13 and fig. 14, the automatic feeding device further comprises a toggle assembly 10, wherein the toggle assembly 10 comprises a housing 101, a rotating rod 102 and a toggle piece 103, the housing 101 is arranged at the bottom of the storage frame 2, the rotating rod 102 is rotatably arranged at the lower part of the storage frame 2, one end of the rotating rod 102 is positioned in the housing 101, and the toggle piece 103 is arranged at the upper part of the rotating rod 102.

When using the device, the staff rotates bull stick 102, and bull stick 102 rotates and drives and dial the piece 103 and rotate, dials the piece 103 and rotates and scrape the gravel and sand of adhesion on the storage frame 2 down, avoids gravel and sand to pile up and causes the jam in storage frame 2 lower part, influences gravel and sand outflow.

Based on embodiment 1, as shown in fig. 3, 14 and 15, the reciprocating module 11 further includes a reciprocating module 11, the reciprocating module 11 includes a rotating shaft 111, a gear 112, a second electric push rod 113, a special-shaped plate 114, a rack 115, a photoelectric sensor 116 and a contact plate 117, the bottom of the rotating rod 102 is connected to the rotating shaft 111 through a coupling, the gear 112 is disposed on the rotating shaft 111, the second electric push rod 113 is disposed inside the housing 101, the special-shaped plate 114 is disposed at an extending end of the second electric push rod 113, the rack 115 is disposed on the upper portion of the special-shaped plate 114, the rack 115 is engaged with the gear 112, the photoelectric sensor 116 is disposed at the bottom of the inclined frame 91, and the contact plate 117 is disposed on the front side of the top of the second right-angle plate 94.

When the device is used, the second right-angle plate 94 moves backwards to drive the contact plate 117 to move backwards, when the photoelectric sensor 116 senses that the contact plate 117 moves backwards, the photoelectric sensor 116 sends a signal, the control module receives the signal to control the extension end of the second electric push rod 113 to extend for one second, the extension end of the second electric push rod 113 drives the rack 115 to move leftwards through the special-shaped plate 114, the rack 115 moves leftwards to drive the gear 112 to rotate, the gear 112 rotates to drive the rotating rod 102 to rotate through the rotating shaft 111, so that the stirring sheet 103 rotates to stir the gravel and sand, when the second right-angle plate 94 drives the contact plate 117 to move forwards, the photoelectric sensor 116 senses that the contact plate 117 moves forwards to send a signal, the control module receives the signal to control the extension end of the second electric push rod 113 to shorten for one second, so that the stirring sheet 103 rotates backwards to stir the gravel and sand again, and thus the stirring sheet 103 can automatically rotate, it is no longer necessary to manually rotate the turn lever 102.

On the basis of embodiment 1, as shown in fig. 1, 3, 16 and 17, the power supply device further comprises a circuit box 51, the circuit box 51 is arranged on the left side of the lower portion of the support 1, a storage battery, a control module and a power module are arranged in the circuit box 51, the storage battery supplies power to the whole device, an output end of the storage battery is electrically connected with the power module, the power module is connected with a power master switch through a circuit, the control module is electrically connected with the power module, and the control module is connected with a DS1302 clock circuit and a 24C02 circuit; the control key 61, the distance sensor 95 and the photoelectric sensor 116 are electrically connected, and the first speed reducing motor 65, the second speed reducing motor 83, the first electric push rod 93 and the second electric push rod 113 are connected with the control module through a peripheral circuit.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a be used for building engineering to use gravel and sand screening installation, characterized by including: a support (1); the storage frame (2) is arranged on the upper part of one side of the bracket (1); two sliding rails (3) are arranged and are respectively arranged on two sides of the top of the material storage frame (2); the screen (4) is arranged between the two sliding rails (3) in a sliding manner, and the screen (4) is used for screening sand and stones; the shielding frame (5) is arranged between the tops of the two sliding rails (3); the shaking assembly (6) is arranged between the bracket (1) and the shielding frame (5); and the discharging component (7) is arranged on the other side of the bracket (1).

2. A screening apparatus for building engineering gravel and sand according to claim 1, wherein the shaking unit (6) comprises: the control key (61) is arranged on one side of the bracket (1) close to the material storage frame (2); the connecting plate (62) is arranged on one side of the top of the shielding frame (5) in a sliding mode, and the connecting plate (62) is connected with the screen (4); the protective shell (63) is arranged on one side of the top of the shielding frame (5), and the protective shell (63) is positioned on one side of the connecting plate (62); the connecting plate (64) is rotatably arranged on the connecting plate (62); a first reduction motor (65) installed in the protective case (63); and the disc (66) is arranged on an output shaft of the first speed reducing motor (65), and the disc (66) is rotatably connected with the connecting plate (64).

3. A screening apparatus for building engineering gravel and sand according to claim 2, wherein the discharge unit (7) comprises: a cylinder frame (71) which is arranged at the upper part of the other side of the bracket (1); the positioning frame (72) is arranged at the upper part of the cylinder frame (71), and the sliding rails (3) are connected with the positioning frame (72); the worm (73) is rotatably arranged in the cylindrical frame (71), and two ends of the worm (73) penetrate through the cylindrical frame (71); a shield case (74) mounted on one side of the cylindrical frame (71); and a blocking plate (75) mounted on the upper part of the cylindrical frame (71).

4. A screening apparatus for building engineering gravel and sand according to claim 3, further comprising a rotating unit (8), wherein the rotating unit (8) comprises: the support frame (81) is arranged on one side, close to the cylindrical frame (71), of the support frame (1); two fixing rods (82), wherein the two fixing rods (82) are arranged on the upper part of the supporting frame (81); and the second speed reducing motor (83) is arranged between the two fixing rods (82), and the output shaft of the second speed reducing motor (83) is connected with the worm (73) through a coupler.

5. A screening apparatus for building engineering gravel and sand according to claim 4, further comprising a pusher assembly (9), wherein the pusher assembly (9) comprises: the inclined frame (91) is arranged at a position, far away from the supporting frame (81), of one side of the bracket (1); the first straight angle plate (92) is arranged at a position, away from the supporting frame (81), of one side of the bracket (1), and the first straight angle plate (92) is positioned below the inclined frame (91); a first electric push rod (93) mounted on the first right-angle plate (92); the second right-angle plate (94) is arranged at the extending end of the first electric push rod (93), and the second right-angle plate (94) is positioned between the inclined frame (91) and the first right-angle plate (92); the distance sensor (95) is arranged on one side, close to the inclined frame (91), of the positioning frame (72); the arch-shaped rod (96) is slidably mounted on one side of the positioning frame (72) close to the distance sensor (95); a sliding plate (97) slidably mounted on the arch bar (96); two springs (98), wherein the two springs (98) are respectively arranged between the two sides of the sliding plate (97) and the arch-shaped rod (96); and the convex block (99) is arranged on one side of the worm (73) close to the distance sensor (95), and the convex block (99) is matched with the sliding plate (97).

6. A screening apparatus for building engineering sand and stone according to claim 5, further comprising a toggle assembly (10), the toggle assembly (10) comprising: the shell (101) is arranged at the bottom of the storage frame (2); the rotating rod (102) is rotatably arranged at the lower part of the storage frame (2), and one end of the rotating rod (102) is positioned in the shell (101); a poking sheet (103) is arranged on the upper part of the rotating rod (102).

7. A screening apparatus for building engineering gravel and sand according to claim 6, further comprising a shuttle unit (11), wherein the shuttle unit (11) comprises: the rotating shaft (111) is arranged at the bottom of the rotating rod (102) through a coupler; a gear (112) mounted on the rotating shaft (111); a second electric push rod (113) installed inside the housing (101); a profiled plate (114) mounted at the extended end of the second electric putter (113); the rack (115) is arranged on the upper part of the special-shaped plate (114), and the rack (115) is meshed with the gear (112); the photoelectric sensor (116) is arranged at the bottom of the inclined frame (91); and the contact plate (117) is arranged on one side of the top of the second right-angle plate (94).

8. The apparatus as claimed in claim 7, further comprising: the circuit box (51) is arranged on one side, close to the cylindrical frame (71), of the lower portion of the support (1), a storage battery, a control module and a power module are arranged in the circuit box (51), the storage battery supplies power to the whole device, the output end of the storage battery is electrically connected with the power module, the power module is connected with a power main switch through a circuit, the control module is electrically connected with the power module, and the control module is connected with a DS1302 clock circuit and a 24C02 circuit; the control key (61), the distance sensor (95) and the photoelectric sensor (116) are electrically connected, and the first speed reducing motor (65), the second speed reducing motor (83), the first electric push rod (93) and the second electric push rod (113) are connected with the control module through a peripheral circuit.