Opening and closing control system for mechanical door

Abstract

The invention discloses a mechanical door opening and closing control system, and relates to the technical field of coal mine underground trackless auxiliary transportation equipment, the mechanical door opening and closing control system comprises a fixed back plate, a mechanical door, a control cylinder, a connecting piece, a bolt, a bolt sleeve, a bolt tongue plate and two vertical plates, the fixed back plate is provided with an access hole, and the top end of the mechanical door is hinged to the fixed back plate; the top end of the mechanical door is arranged above the access hole, the bolt sleeve is fixedly arranged on the mechanical door, the bolt tongue plate is fixedly arranged on the fixed back plate, the two vertical plates are fixedly arranged on the mechanical door side by side, the connecting piece can move up and down along the inner side wall of the sliding hole, the top end of the bolt is connected with the connecting piece, and the bottom end of a piston rod of the control cylinder is connected with the connecting piece. A piston rod of the control cylinder extends out to drive the bottom end of the bolt to extend into the bolt tongue plate, retracts back to drive the bottom end of the bolt to leave from the bolt tongue plate, and retracts back to drive the connecting piece to pull the mechanical door to turn upwards; mechanical control over opening and closing of the mechanical door can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of trackless auxiliary transportation equipment in underground coal mines, and in particular to a mechanical door opening and closing control system. Background Art

[0002] The modernization of underground coal mines requires the construction of inherently safe coal mines and green mining coal mines. Under the guidance of the principles of mechanization to reduce manpower, automation to improve quality, and intelligence to increase efficiency, various functional trackless auxiliary transportation equipment for underground coal mines has come into being.

[0003] In addition to coal transportation, various types of transportation such as personnel, materials, equipment and grinding stone in coal mines are collectively referred to as auxiliary transportation. Trackless transportation uses rubber wheels or crawlers as the walking mechanism, and adopts explosion-proof diesel engines, batteries, etc. as traction power. Trackless auxiliary transportation equipment in coal mines is characterized by high efficiency, multi-purpose, mobility and advanced technology. Existing large-scale mining areas have introduced complete sets of trackless rubber-wheeled transportation equipment. The use of this new auxiliary transportation method has significantly improved the auxiliary transportation and the production efficiency of all employees in the mine. Trackless auxiliary transportation equipment in coal mines has achieved good economic and social benefits in reducing the number of people in coal mines and increasing efficiency, improving safety, etc., and effectively solved the bottleneck that restricts the development of safe, high-yield and high-efficiency mines.

[0004] Among them, the traditional opening and closing method of mechanical doors used for trackless auxiliary transportation equipment in coal mines is manual pulling and inserting of opening and closing bolts, which consumes manpower and is inconsistent with the safety production goal of "mechanized replacement of personnel, automated reduction of personnel, and intelligent unmanned" in coal mines. Summary of the invention

[0005] The purpose of the present invention is to provide a mechanical door opening and closing control system to solve the problems existing in the above-mentioned prior art, which can realize the mechanized control of the opening and closing of the mechanical door, reduce the working intensity and working time of mine workers, improve the working efficiency of underground coal mines, and is suitable for promotion and application in underground coal mines.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] The present invention provides a mechanical door opening and closing control system, comprising a fixed back plate, a mechanical door, a control cylinder, a connecting piece, a latch, a bolt sleeve, a bolt tongue plate and two vertical plates, wherein the fixed back plate is provided with an inlet and outlet hole, the top end of the mechanical door is hinged on the fixed back plate, the top end of the mechanical door is placed above the inlet and outlet hole, the mechanical door can cover and block the inlet and outlet hole, the bolt sleeve is fixed on the mechanical door, the bolt tongue plate is fixed on the fixed back plate, the bolt tongue plate is placed below the mechanical door, two vertical plates are fixed side by side on the mechanical door, the vertical plate is placed above the bolt sleeve, a sliding hole is provided on the vertical plate, and the connecting piece passes through the holes on the two vertical plates The sliding hole, the connecting piece can move up and down along the inner wall of the sliding hole, the top end of the pin is connected to the connecting piece, the bottom end of the pin can pass through the bolt sleeve and extend into the bolt tongue plate or leave from the bolt tongue plate, the top end of the cylinder body of the control cylinder is hinged to the fixed back plate, the top end of the cylinder body of the control cylinder is placed above the mechanical door, the bottom end of the piston rod of the control cylinder is connected to the connecting piece, the extension of the piston rod of the control cylinder can drive the bottom end of the pin to extend into the bolt tongue plate, the retraction of the piston rod of the control cylinder can drive the bottom end of the pin to leave from the bolt tongue plate, and the retraction of the piston rod of the control cylinder can drive the connecting piece to pull the mechanical door to flip upward.

[0008] Preferably, the latch includes a telescopic connecting fork and an opening and closing bolt, the telescopic connecting fork can be telescoped to adjust the length, the top end of the telescopic connecting fork is connected to the connecting piece, the bottom end of the telescopic connecting fork is fixedly connected to the top end of the opening and closing bolt, and the bottom end of the opening and closing bolt can pass through the bolt sleeve and extend into the bolt tongue plate or leave the bolt tongue plate.

[0009] Preferably, the bottom end of the telescopic connecting fork is bolted to the top end of the opening and closing bolt.

[0010] Preferably, a socket is provided on the bolt tongue plate, and the bottom end of the opening and closing bolt has a tongue-shaped flat end, and the tongue-shaped flat end can extend into the socket.

[0011] Preferably, a fixing plate is welded on the inner side wall of the fixing back plate, a through hole is opened on the fixing back plate, the first end of the bolt tongue plate is bolted to the fixing plate, the second end of the bolt tongue plate passes through the through hole and extends to the outside of the fixing back plate, and the socket is opened on the second end of the bolt tongue plate.

[0012] Preferably, the bottom end of the piston rod of the control cylinder is placed between the two vertical plates.

[0013] Preferably, a sealing ring is fixedly provided on the mechanical door, the sealing ring is placed between the fixed back plate and the mechanical door, and the sealing ring is arranged around the entrance and exit opening.

[0014] Preferably, an observation port is provided on the mechanical door.

[0015] Preferably, a plurality of maintenance ladders are fixedly arranged on the fixed back plate in sequence from top to bottom.

[0016] Preferably, it also includes an oil supply assembly, which includes a hydraulic oil tank, a pipeline filter, a hydraulic pump, a safety valve group, a handle operating valve, a first speed regulating valve, a second speed regulating valve and a return oil filter, the oil inlet of the pipeline filter is connected to the hydraulic oil tank, the oil outlet of the pipeline filter is connected to the oil suction port of the hydraulic pump, the oil outlet of the hydraulic pump is connected to the oil inlet of the safety valve group, the first oil outlet of the safety valve group is connected to the oil inlet of the handle operating valve, the second oil outlet of the safety valve group is connected to the hydraulic oil tank, the first oil outlet of the handle operating valve is connected to the oil inlet of the first speed regulating valve, the second oil outlet of the handle operating valve is connected to the oil inlet of the second speed regulating valve, the third oil outlet of the handle operating valve is connected to the oil inlet of the return oil filter, the oil outlet of the return oil filter is connected to the hydraulic oil tank, the oil outlet of the first speed regulating valve is connected to the rodless chamber of the control cylinder, and the oil outlet of the second speed regulating valve is connected to the rod chamber of the control cylinder.

[0017] Compared with the prior art, the present invention has achieved the following technical effects:

[0018] The mechanical door opening and closing control system provided by the present invention controls the piston rod of the control cylinder to extend, driving the connecting piece to move downward along the inner wall of the sliding hole, the connecting piece to move downward along the inner wall of the sliding hole, driving the bottom end of the bolt to pass through the bolt sleeve, and move downward to extend into the bolt tongue plate, thereby realizing the closing and locking of the mechanical door; the piston rod of the control cylinder is retracted, driving the connecting piece to move upward along the inner wall of the sliding hole, the connecting piece to move upward along the inner wall of the sliding hole, driving the bottom end of the bolt to move upward and leave the bolt tongue plate, thereby realizing the unlocking of the mechanical door, until the connecting piece moves upward along the inner wall of the sliding hole to the highest point of the sliding hole, the bolt and the mechanical door are locked. The door remains relatively still, and the piston rod of the control cylinder continues to retract. The piston rod of the control cylinder pulls the connecting piece, the connecting piece pulls the two vertical plates, and the two vertical plates pull the mechanical door. Since the top of the mechanical door is hinged to the fixed back plate, the mechanical door flips upward around the hinge between the top of the mechanical door and the fixed back plate to achieve the opening of the mechanical door. Therefore, the mechanical door opening and closing control system provided by the present invention can realize mechanized control of the opening and closing of the mechanical door, reduce the working intensity and working time of mine workers, and improve the working efficiency of underground coal mines. It is suitable for promotion and application in underground coal mines. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic front view of the mechanical door opening and closing control system provided by the present invention;

[0021] Figure 2 for Figure 1 Side view of

[0022] Figure 3 for Figure 1 Stereoscopic image of

[0023] Figure 4 for Figure 3 The back view of

[0024] Figure 5 for Figure 1 Schematic diagram of the telescopic connecting fork;

[0025] Figure 6 for Figure 5 Schematic diagram of the two end sections of the telescopic connecting fork;

[0026] Figure 7 for Figure 5 Schematic diagram of the middle section of the telescopic connecting fork;

[0027] Figure 8 for Figure 1 Schematic diagram of the opening and closing plug in the figure;

[0028] Fig. 9 for Figure 1 Schematic diagram of the bolt plate in;

[0029] Fig.10 A schematic diagram of an oil supply component of a mechanical door opening and closing control system provided by the present invention;

[0030] In the figure: 1-fixed back plate, 2-first welding ear, 3-first pin shaft, 4-first sleeve, 5-first cotter pin, 6-semicircular ear, 7-first connecting bolt, 8-first connecting gasket, 9-first connecting nut, 10-upper connecting plate, 11-lower connecting plate, 12-wedge block, 13-observation port, 14-mechanical door, 15-control cylinder, 16-second pin shaft, 17-second sleeve, 18-second welding ear, 19-second cotter pin, 20-first fastening nut, 21-first gasket, 22-first bolt, 2 3-vertical plate, 24-telescopic connecting fork, 25-second fastening nut, 26-second gasket, 27-second bolt, 28-opening and closing bolt, 29-bolt sleeve, 30-maintenance ladder, 31-sealing ring, 32-third bolt, 33-third gasket, 34-fixing plate, 35-bolt tongue plate, 36-third fastening nut, 37-hydraulic oil tank, 38-pipeline filter, 39-hydraulic pump, 40-safety valve group, 41-handle operating valve, 42-first speed regulating valve, 43-second speed regulating valve, 44-return oil filter. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The purpose of the present invention is to provide a mechanical door opening and closing control system to solve the problems existing in the above-mentioned prior art, which can realize the mechanized control of the opening and closing of the mechanical door, reduce the working intensity and working time of mine workers, improve the working efficiency of underground coal mines, and is suitable for promotion and application in underground coal mines.

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] like Figure 1-Figure 10As shown, the present invention provides a mechanical door opening and closing control system, including a fixed back plate 1, a mechanical door 14, a control cylinder 15, a connecting piece, a latch, a bolt sleeve 29, a bolt tongue plate 35 and two vertical plates 23, the fixed back plate 1 is provided with an inlet and outlet hole, the top end of the mechanical door 14 is hinged on the fixed back plate 1, the top end of the mechanical door 14 is placed above the inlet and outlet hole, the mechanical door 14 can cover and block the inlet and outlet hole, the bolt sleeve 29 is fixed on the mechanical door 14, the bolt tongue plate 35 is fixed on the fixed back plate 1, the bolt tongue plate 35 is placed below the mechanical door 14, two vertical plates 23 are fixed side by side on the mechanical door 14, the vertical plates 23 are placed above the bolt sleeve 29, the vertical plates 23 are provided with sliding holes, and the connecting piece The connecting piece passes through the sliding holes on the two vertical plates 23, and the connecting piece can move up and down along the inner wall of the sliding hole. The top of the bolt is connected to the connecting piece, and the bottom end of the bolt can pass through the bolt sleeve 29 and extend into the bolt tongue plate 35 or leave from the bolt tongue plate 35. The top end of the cylinder body of the control cylinder 15 is hinged on the fixed back plate 1, and the top end of the cylinder body of the control cylinder 15 is placed above the mechanical door 14. The bottom end of the piston rod of the control cylinder 15 is connected to the connecting piece. The extension of the piston rod of the control cylinder 15 can drive the bottom end of the bolt to extend into the bolt tongue plate 35. The retraction of the piston rod of the control cylinder 15 can drive the bottom end of the bolt to leave the bolt tongue plate 35. The retraction of the piston rod of the control cylinder 15 can drive the connecting piece to pull the mechanical door 14 to flip upward.

[0035] The mechanical door opening and closing control system provided by the present invention controls the piston rod of the control cylinder 15 to extend, driving the connecting member to move downward along the inner wall of the sliding hole. The connecting member moves downward along the inner wall of the sliding hole, driving the bottom end of the bolt to pass through the bolt sleeve 29, and moves downward to extend into the bolt tongue plate 35, thereby closing and locking the mechanical door 14; the piston rod of the control cylinder 15 retracts, driving the connecting member to move upward along the inner wall of the sliding hole. The connecting member moves upward along the inner wall of the sliding hole, driving the bottom end of the bolt to move upward and leave the bolt tongue plate 35, thereby unlocking the mechanical door 14. After the connecting member moves upward along the inner wall of the sliding hole to the highest point of the sliding hole, the bolt and the mechanical door 14 remain in a closed position. Relatively still, at this time, the piston rod of the control cylinder 15 continues to retract, the piston rod of the control cylinder 15 pulls the connecting piece, the connecting piece pulls the two vertical plates 23, and the two vertical plates 23 pull the mechanical door 14. Since the top of the mechanical door 14 is hinged on the fixed back plate 1, the mechanical door 14 flips upward around the hinge between the top of the mechanical door 14 and the fixed back plate 1 to achieve the opening of the mechanical door 14. Therefore, the mechanical door opening and closing control system provided by the present invention can realize the mechanized control of the opening and closing of the mechanical door 14, reduce the working intensity and working time of mine workers, and improve the working efficiency of underground coal mines. It is suitable for promotion and application in underground coal mines.

[0036] As a more preferred implementation of this embodiment, a rectangular inlet and outlet hole which is smaller than the mechanical door 14 is opened in the middle of the fixed back plate 1, four first welding ears 2 are symmetrically welded on the fixed back plate 1 in pairs, two semicircular ears 6 are respectively welded on the two upper connecting plates 10, and the semicircular ears 6 are inserted in the middle of the two first welding ears 2. The three are concentrically aligned with the middle hole, and the two lower connecting plates 11 are symmetrically welded on the upper end surface of the mechanical door 14. One side of the two wedge blocks 12 is welded and fixed on the front end surface of the mechanical door 14, and the other side is welded and fixed on the lower end surface of the lower connecting plate 11. Both sides of the upper connecting plate 10 and the lower connecting plate 11 are provided with central circular holes or oblong holes. After the upper connecting plate 10 and the lower connecting plate 11 are fitted together, they are connected and fixed together by two first connecting bolts 7, a first connecting gasket 8, and a first connecting nut 9. The first shaft sleeve 4 is respectively sleeved in the middle holes of the semicircular ear 6 and the two first welding ears 2, and the first pin shaft 3 is inserted into the middle hole to connect the semicircular ear 6 with the first welding ears 2 on both sides. Then the first cotter pin 5 is inserted into the small circular hole of the first pin shaft 3 to fix the first pin shaft 3, so that the mechanical door 14 can rotate around the first pin shaft 3.

[0037] As a more preferred implementation manner of this embodiment, two second welding ears 18 are welded to the upper and middle section of the fixed back plate 1, and the top cylinder ear of the cylinder body of the control cylinder 15 is between the two second welding ears 18, and the center holes therebetween are concentrically aligned, and the second bushing 17 is sleeved in the center holes of the two second welding ears 18 and the top cylinder ear of the cylinder body of the control cylinder 15, and the second pin 16 is inserted into its hole, and the second cotter pin 19 is inserted into the small circular hole of the second pin 16 to fix the second pin 16, and the top cylinder ear of the cylinder body of the control cylinder 15 is connected to the two second welding ears 18, so that the control cylinder 15 can rotate around the second pin 16.

[0038] Furthermore, the latch includes a telescopic connecting fork 24 and an opening and closing bolt 28. The telescopic connecting fork 24 can be telescoped to adjust the length. The telescopic connecting fork 24 is preferably a three-section structure. Both end sections and the middle section are threadedly connected. The two end sections are rotated relative to the middle section to adjust the total length of the telescopic connecting fork 24. The top of the telescopic connecting fork 24 is connected to the connecting piece, and the bottom end of the telescopic connecting fork 24 is fixedly connected to the top of the opening and closing bolt 28. The bottom end of the opening and closing bolt 28 can pass through the bolt sleeve 29 and extend into the bolt tongue plate 35 or leave the bolt tongue plate 35, so as to facilitate the adjustment of the depth of the opening and closing bolt 28 extending into the bolt tongue plate 35.

[0039] As a more preferred implementation scheme of this embodiment, the connecting part includes a first bolt 22, a first gasket 21 and a first fastening nut 20. The first bolt 22 is slidably connected to the vertical plate 23. The upper end of the telescopic connecting fork 24 is hinged to the piston rod of the control cylinder 15. There is an oblong hole in the middle of the two vertical plates 23, which is symmetrically welded at the middle position of the mechanical door 14. The middle circular hole at the upper end of the telescopic connecting fork 24 is concentrically aligned with the middle circular hole of the piston rod end ear of the control cylinder 15, and the first bolt 22, the first gasket 21 and the first fastening nut 20 are inserted into the upper middle circular hole.

[0040] Furthermore, the bottom end of the telescopic connecting fork 24 is bolted to the top end of the opening and closing bolt 28. Specifically, the middle hole at the top end of the opening and closing bolt 28 is concentrically aligned with the middle circular hole at the bottom end of the telescopic connecting fork 24. The second bolt 27, the second gasket 26, and the second fastening nut 25 are inserted into the upper middle circular hole and then fastened by threads to facilitate the replacement and installation of the opening and closing bolt 28.

[0041] Furthermore, a socket is provided on the bolt tongue plate 35, and the bottom end of the opening and closing bolt 28 has a tongue-shaped flat end, which can be inserted into the socket, so the structure is simple and convenient for connection.

[0042] Furthermore, a fixing plate 34 is welded on the inner side wall of the fixing back plate 1, and a through hole is opened on the fixing back plate 1, and the first end of the bolt tongue plate 35 is bolted to the fixing plate 34, and the second end of the bolt tongue plate 35 passes through the through hole and extends to the outside of the fixing back plate 1, and the socket is opened on the second end of the bolt tongue plate 35. As a more preferred implementation mode of this embodiment, the fixing plate 34 is welded to the middle of the lower end of the fixing back plate 1, and a rectangular through hole is opened in the middle lower part of the fixing back plate 1, and the bolt tongue plate 35 passes through this through hole, and the two oblong holes of the bolt tongue plate 35 are concentrically aligned with the four center holes of the fixing plate 34, and the four third bolts 32, the third gasket 33, and the third fastening nut 36 are inserted into the center hole of the fixing plate 34 and the oblong hole of the bolt tongue plate 35, and then are fastened and fixed by threads, so as to facilitate the replacement and installation of the bolt tongue plate 35.

[0043] Furthermore, the bottom end of the piston rod of the control cylinder 15 is placed between the two vertical plates 23 to facilitate stable force transmission and movement.

[0044] Furthermore, a sealing ring 31 is fixedly provided on the mechanical door 14, and the sealing ring 31 is placed between the fixed back plate 1 and the mechanical door 14. The sealing ring 31 is arranged around the inlet and outlet holes, and the sealing ring 31 is glued to the rear end face of the mechanical door 14. The size of the sealing ring 31 is larger than the inlet and outlet holes opened in the middle of the fixed back plate 1, and the sealing ring 31 plays a role in sealing between the mechanical door 14 and the fixed back plate 1. The sealing ring 31 is a thick sealing material, which can be nitrile rubber or fluororubber, or a magnetic sealing material, which can be determined according to the working conditions.

[0045] Furthermore, an observation port 13 is provided on the mechanical door 14. As a more preferred implementation manner of this embodiment, the observation port 13 is a circular hole provided on the mechanical door 14, and a component with a middle portion made of tempered glass and an outer ring made of a steel ring is welded to the circular hole to serve the purpose of observing the interior.

[0046] Furthermore, a plurality of maintenance ladders 30 are fixedly provided on the fixed back plate 1 in sequence from top to bottom. The maintenance ladders 30 are welded to the right side of the mechanical door 14 to serve as climbing tools for equipment maintenance and repair.

[0047] Furthermore, the mechanical door opening and closing control system provided by the present invention also includes an oil supply component, which includes a hydraulic oil tank 37, a pipeline filter 38, a hydraulic pump 39, a safety valve group 40, a handle operating valve 41, a first speed regulating valve 42, a second speed regulating valve 43 and an oil return filter 44, the oil inlet of the pipeline filter 38 is connected to the hydraulic oil tank 37, the oil outlet of the pipeline filter 38 is connected to the oil suction port of the hydraulic pump 39, the oil outlet of the hydraulic pump 39 is connected to the oil inlet of the safety valve group 40, and the first oil outlet of the safety valve group 40 is connected to the handle operating valve 41. 1, the second oil outlet of the safety valve group 40 is connected to the hydraulic oil tank 37, the first oil outlet of the handle operating valve 41 is connected to the oil inlet of the first speed regulating valve 42, the second oil outlet of the handle operating valve 41 is connected to the oil inlet of the second speed regulating valve 43, the third oil outlet of the handle operating valve 41 is connected to the oil inlet of the return oil filter 44, the oil outlet of the return oil filter 44 is connected to the hydraulic oil tank 37, the oil outlet of the first speed regulating valve 42 is connected to the rodless chamber of the control cylinder 15, and the oil outlet of the second speed regulating valve 43 is connected to the rod chamber of the control cylinder 15.

[0048] When the hydraulic pump 39 starts to operate under the drive of power (motor or engine), the hydraulic pump 39 uses the siphon principle to transport the hydraulic oil from the hydraulic oil tank 37 through the pipeline filter 38 to the hydraulic pump 39. The hydraulic oil becomes high-pressure hydraulic oil after passing through the hydraulic pump 39. The high-pressure hydraulic oil flows from the hydraulic pump 39 through the safety valve group 40 to the handle operating valve 41 to prepare for operating the control cylinder 15; the first speed regulating valve 42 and the second speed regulating valve 43 can be adjusted to an ideal state according to the speed of extension and retraction of the control cylinder 15.

[0049] When the handle of the operating handle valve 41 is pushed forward, the internal valve core of the handle operating valve 41 moves downward, so that the oil inlet of the handle operating valve 41 is connected to the first oil outlet of the handle operating valve 41. At this time, the high-pressure hydraulic oil reaches the oil inlet of the first speed regulating valve 42 from the oil inlet of the handle operating valve 41 through the first oil outlet of the handle operating valve 41, and then reaches the rodless chamber of the control cylinder 15 from the oil outlet of the first speed regulating valve 42, so that the piston rod of the control cylinder 15 extends.

[0050] When the handle of the operating handle valve 41 is pushed backward, the internal valve core of the handle operating valve 41 moves upward, so that the oil inlet of the handle operating valve 41 is connected to the second oil outlet of the handle operating valve 41. At this time, the high-pressure hydraulic oil flows from the oil inlet of the handle operating valve 41 through the second oil outlet of the handle operating valve 41 to the oil inlet of the second speed regulating valve 43, and then reaches the rodless chamber of the control cylinder 15 from the oil outlet of the second speed regulating valve 43, so that the piston rod of the control cylinder 15 retracts.

[0051] The mechanical door opening and closing control system provided by the present invention cleverly combines mechanical principles with hydraulic principles, uses a simple control mechanism to achieve simple operation and mechanized operation. The control system has a simple design and strong feasibility and is applicable to various fields.

[0052] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A mechanical door opening and closing control system, characterized in that: It includes a fixed back plate, a mechanical door, a control cylinder, a connecting piece, a latch, a bolt sleeve, a bolt tongue plate and two vertical plates, the fixed back plate is provided with an entry and exit hole, the top end of the mechanical door is hinged on the fixed back plate, the top end of the mechanical door is placed above the entry and exit hole, the mechanical door can cover and block the entry and exit hole, the bolt sleeve is fixed on the mechanical door, the bolt tongue plate is fixed on the fixed back plate, the bolt tongue plate is placed under the mechanical door, two vertical plates are fixed side by side on the mechanical door, the vertical plate is placed above the bolt sleeve, a sliding hole is provided on the vertical plate, the connecting piece passes through the sliding holes on the two vertical plates, and the connecting piece The top end of the bolt can be moved up and down along the inner wall of the sliding hole, the top end of the bolt is connected to the connecting piece, the bottom end of the bolt can pass through the bolt sleeve and extend into the bolt tongue plate or leave the bolt tongue plate, the top end of the cylinder body of the control cylinder is hinged to the fixed back plate, the top end of the cylinder body of the control cylinder is placed above the mechanical door, the bottom end of the piston rod of the control cylinder is connected to the connecting piece, the extension of the piston rod of the control cylinder can drive the bottom end of the bolt to extend into the bolt tongue plate, the retraction of the piston rod of the control cylinder can drive the bottom end of the bolt to leave the bolt tongue plate, and the retraction of the piston rod of the control cylinder can drive the connecting piece to pull the mechanical door to flip upward.

2. The mechanical door opening and closing control system according to claim 1, characterized in that: The latch includes a telescopic connecting fork and an opening and closing bolt. The telescopic connecting fork can be telescoped to adjust the length. The top end of the telescopic connecting fork is connected to the connecting piece, and the bottom end of the telescopic connecting fork is fixedly connected to the top end of the opening and closing bolt. The bottom end of the opening and closing bolt can pass through the bolt sleeve and extend into the bolt tongue plate or leave the bolt tongue plate.

3. The mechanical door opening and closing control system according to claim 2, characterized in that: The bottom end of the telescopic connecting fork is bolted to the top end of the opening and closing bolt.

4. The mechanical door opening and closing control system according to claim 2, characterized in that: The bolt tongue plate is provided with a socket, and the bottom end of the opening and closing bolt is provided with a tongue-shaped flat end, and the tongue-shaped flat end can be extended into the socket.

5. The mechanical door opening and closing control system according to claim 4, characterized in that: A fixing plate is welded on the inner side wall of the fixing back plate, a through hole is opened on the fixing back plate, the first end of the bolt tongue plate is bolted to the fixing plate, the second end of the bolt tongue plate passes through the through hole and extends to the outside of the fixing back plate, and the socket is opened on the second end of the bolt tongue plate.

6. The mechanical door opening and closing control system according to claim 1, characterized in that: The bottom end of the piston rod of the control cylinder is placed between the two vertical plates.

7. The mechanical door opening and closing control system according to claim 1, characterized in that: A sealing ring is fixedly provided on the mechanical door, the sealing ring is placed between the fixed back plate and the mechanical door, and the sealing ring is arranged around the inlet and outlet opening.

8. The mechanical door opening and closing control system according to claim 1, characterized in that: An observation port is provided on the mechanical door.

9. The mechanical door opening and closing control system according to claim 1, characterized in that: A plurality of maintenance ladders are fixedly arranged on the fixed back plate in sequence from top to bottom.

10. The mechanical door opening and closing control system according to claim 1, characterized in that: It also includes an oil supply assembly, which includes a hydraulic oil tank, a pipeline filter, a hydraulic pump, a safety valve group, a handle operating valve, a first speed regulating valve, a second speed regulating valve and a return oil filter. The oil inlet of the pipeline filter is communicated with the hydraulic oil tank, the oil outlet of the pipeline filter is communicated with the oil suction port of the hydraulic pump, the oil outlet of the hydraulic pump is communicated with the oil inlet of the safety valve group, the first oil outlet of the safety valve group is communicated with the oil inlet of the handle operating valve, the second oil outlet of the safety valve group is communicated with the hydraulic oil tank, the first oil outlet of the handle operating valve is communicated with the oil inlet of the first speed regulating valve, the second oil outlet of the handle operating valve is communicated with the oil inlet of the second speed regulating valve, the third oil outlet of the handle operating valve is communicated with the oil inlet of the return oil filter, the oil outlet of the return oil filter is communicated with the hydraulic oil tank, the oil outlet of the first speed regulating valve is communicated with the rodless chamber of the control cylinder, and the oil outlet of the second speed regulating valve is communicated with the rod chamber of the control cylinder.

Images