CN218816065U - A novel hoist and mount mouth combination protection device for bread production - Google Patents

Abstract

The utility model relates to a novel hoist and mount mouth combination protector for bread production relates to the field of hoist and mount operation technique, and it is including opening and shutting the door plant that sets up in hoist and mount mouth department, still including setting up at the upper beam at hoist and mount mouth top and setting up the underbeam in hoist and mount mouth bottom, the door plant is articulated to be set up on the underbeam, be provided with on the upper beam and be used for ordering about the door plant is close to/keeps away from hoist and mount mouth direction pivoted drive assembly. This application has the effect of improving the problem that has hoist and mount potential safety hazard when hoist and mount mouth hoist and mount goods.

Description

A novel hoist and mount mouth combination protection device for bread production

Technical Field

The application relates to the field of hoisting operation technology, in particular to a novel hoisting opening combined protection device for bread production.

Background

The hoisting port is a passage port for goods to enter and exit when hoisting operation is carried out. The bread mill can use the hoist and mount mouth to transport material and equipment often in process of production, and one side opening at the wall body is as transporting the hoist and mount mouth that is used for the goods of bread production, and when the goods was hung and is sent to and press close to the hoist and mount mouth with hoist and mount mouth co-altitude, the staff in the building need will hang and send the dull and stereotyped rope of goods to fix temporarily in hoist and mount mouth department, then walk the flat board and lift the goods off and transport into.

At present common hoist and mount mouth protector sets up a door in hoist and mount mouth department, outwards build the platform by laying bricks or stones simultaneously, it is limited by outrigger atress structure, the platform stretches out hoist and mount mouth should not exceed 1800mm, the border of platform upper surface is provided with the rail guard, the rail guard opening of one side of hoist and mount mouth is kept away from to the platform sets up and transports the door, when placing the goods on the flat board by hanging send to with the same height of platform, open and transport the door, make dull and stereotyped one side be close to and transport the door and laminate mutually with the platform, bind dull and stereotyped and platform temporarily with the rope, the staff walks on the flat board and can lift the goods off and transport into through platform and hoist and mount mouth.

In view of the above-described related art, the inventors consider that the following drawbacks exist: when the dull and stereotyped length of bearing the weight of the goods is greater than 1800mm, at the in-process of hanging the delivery of goods, need to laminate one side of dull and stereotyped and one side that the hoist and mount mouth was kept away from to the platform mutually and bind dull and stereotyped and platform with the rope, dull and stereotyped and platform pass through the temporary connection of rope and be insecure, arouse easily when the staff walks on the flat board and rock, the staff has the risk that the underfoot falls, consequently has great potential safety hazard.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that has hoist and mount potential safety hazard when hoist and mount mouth hoist and mount goods, this application provides a novel hoist and mount mouth combination protector for bread production.

The application provides a novel hoist and mount mouth combination protector for bread production adopts following technical scheme:

the utility model provides a novel hoist and mount mouth combination protector for bread production, is including opening and shutting the door plant that sets up in hoist and mount mouth department, still including setting up the upper beam at hoist and mount mouth top and setting up the underbeam in hoist and mount mouth bottom, the door plant is articulated to be set up on the underbeam, be provided with on the upper beam and be used for ordering about the door plant is close to/keeps away from hoist and mount mouth direction pivoted drive assembly.

By adopting the technical scheme, when the hoisted goods for bread production need to be transported, the door plate is driven to rotate in the direction away from the hoisting port through the driving assembly, the hoisted goods are placed on the door plate after the door plate rotates to the horizontal position from the vertical position, and the workers can lift the goods off and transport the goods into the door plate through the hoisting port by walking on the door plate; the upper beam is used for setting up drive assembly, and is articulated mutually with the one end and the underbeam of door plant, the connection is more firm, and when the door plant level was placed, the staff was difficult for arousing after walking the door plant and rocked, had improved the problem that has hoist and mount potential safety hazard when hoist and mount mouth hoist and mount goods.

Optionally, the driving assembly comprises an electric hoist and a connecting piece, the connecting piece is arranged at one end of a traction rope of the electric hoist, and the traction rope of the electric hoist is connected with one end, far away from the lower beam, of the door panel through the connecting piece.

By adopting the technical scheme, when the door plate needs to be rotated to the horizontal position, the electric hoist is started firstly, the traction rope of the electric hoist is discharged, the door plate rotates towards the direction far away from the hoisting opening under the action of gravity and the traction force of the traction rope, the electric hoist is closed after the door plate rotates to the horizontal position from the vertical position, when the door plate needs to be folded, the electric hoist is opened firstly, the traction rope of the electric hoist is folded, the door plate is pulled and returns to the vertical position from the horizontal position, and then the electric hoist is closed; the connecting piece is used for being connected the haulage rope of electric block and the one end that the underbeam was kept away from to the door plant, through putting down and packing up of electric block control door plant, convenient operation, control is stable.

Optionally, a first guard rail and two second guard rails are hinged to the door panel, the first guard rail is located at one end, away from the lower beam, of the door panel, the two second guard rails are arranged at intervals along the length direction of the lower beam, and a fixing assembly used for fixing the first guard rail and the second guard rail at a position perpendicular to the door panel is arranged on the door panel.

Through adopting above-mentioned technical scheme, after rotating the door plant to horizontal position, rotate first protection railing and second and prevent railing and fix in the position perpendicular with the door plant through fixed subassembly to the goods that will place on the door plant are enclosed, have improved the security that the staff lifted the goods off and transported into the in-process.

Optionally, the door stop device further comprises a door stop grating, one end of the door stop grating is hinged to the lower beam, and a locking assembly used for locking the door stop grating in a vertical position is arranged on the door stop grating.

By adopting the technical scheme, after the door plate is opened to the horizontal position, the door plate can be moved up from the lifting hole only by unlocking the door blocking grating and rotating the door blocking grating to the horizontal position, and after the door plate is transported, the door plate is moved down by the worker, the door blocking grating is locked at the vertical position by the locking assembly, and then the door plate is folded; the setting of shutter grid and locking subassembly has guaranteed that the staff is located the safe position of hoist and mount mouth department in the door plant rotation process, has improved the security of hoist and mount operation.

Optionally, the door panel is provided with a first groove, a second groove and a third groove, the first guard rail is movably disposed in the first groove, the second guard rail is movably disposed in the second groove, and the shutter grille is movably disposed in the third groove.

Through adopting above-mentioned technical scheme, set up first recess, second recess and third recess on the door plant, conveniently with first protection railing, second protection railing, the folding placing of shutter grid in the door plant, saved the space.

Optionally, be provided with first safety protection alarm lamp and first contact inductor on the lateral wall of underbeam, first safety protection alarm lamp is connected with first contact inductor is automatically controlled, the door plant is close to the first contact cushion of the one end fixedly connected with of underbeam, works as when the door plant is opened to horizontal position, first contact cushion with first contact inductor extrudees each other and triggers first safety protection alarm lamp reports to the police.

Through adopting above-mentioned technical scheme, the horizontally signal can be placed as the door plant to the light of first safety protection alarm lamp, sets up first safety protection alarm lamp at the lateral wall of underbeam, and the hoisting personnel can place the goods of hoisting on the door plant after triggering the warning, and at night, light signal still can help the staff to differentiate the position, improves the security of hoist and mount operation.

Optionally, second safety protection alarm lamps are arranged on the inner side wall and the outer side wall of the upper beam, a second contact sensor is arranged at the lower end of the upper beam, the second safety protection alarm lamps are electrically connected with the second contact sensor, the door panel is far away from a second contact cushion block fixedly connected with one end of the lower beam, and when the door panel drives the second contact cushion block to move to be separated from the second contact sensor, the second contact sensor triggers the second safety protection alarm lamps to alarm.

Through adopting above-mentioned technical scheme, the light of second safety protection alarm lamp can leave the signal of vertical position as the door plant, the preparation of hoist and mount can be done to hoisting personnel after triggering the warning, thereby the personnel that are located hoist and mount mouth below receive the signal and dodge and guarantee self safety, simultaneously, set up inside wall and the lateral wall of second safety protection alarm lamp at the entablature, personnel in the hoist and mount mouth and outside the hoist and mount mouth all can confirm the door plant according to light signal and leave vertical position, at night, light signal still can help the staff to distinguish the position, improve the security of hoist and mount operation.

Optionally, the door further comprises a rolling door arranged at the lifting opening, and the door panel is located on the outer side of the rolling door.

Through adopting above-mentioned technical scheme, locate the installation rolling slats door at hoist and mount mouth, separate hoist and mount mouth inside and external environment, the leakproofness is strong, has effects such as thermal-insulated, noise reduction, protection against insects, and the hoist and mount operation is accomplished the back, closes the rolling slats door to guarantee hoist and mount mouth inside staff's safety.

In summary, the present application includes at least one of the following beneficial technical effects:

1. according to the novel combined protective device for the lifting opening for bread production, one end of the door plate is hinged to the lower beam, the connection is firm, the door plate is driven by the driving assembly to rotate to the horizontal position, lifted goods are placed on the door plate, when workers walk on the door plate, the lifting opening is not prone to shaking, and the problem that lifting potential safety hazards exist when goods are lifted at the lifting opening is solved;

2. according to the novel combined protective device for the lifting hole for bread production, the first protective rail and the second protective rail are arranged on the door plate, and the door plate rotates to the horizontal position and then encloses goods placed on the movable door plate, so that the safety of workers in the process of unloading the goods and conveying the goods into the movable door plate is improved;

3. according to the novel combined protective device for the lifting opening for bread production, the shutter grating is arranged between the lifting opening and the door plate, so that a worker is guaranteed to be located at the safe position of the lifting opening in the rotating process of the door plate, and the safety of lifting operation is improved;

4. according to the novel combined protective device for the lifting port for bread production, the first safety protection alarm lamp and the second safety protection alarm lamp are arranged, so that light signals related to the position of a door panel are provided for workers, the workers can conveniently and orderly carry out lifting operation according to the signals, meanwhile, surrounding workers are reminded of paying attention to safety, and the safety of the lifting operation is improved;

5. a novel hoist and mount mouth combination protector for bread production of design, the department sets up the rolling slats door in hoist and mount mouth, when playing effects such as thermal-insulated, noise reduction, protection against insects, has also guaranteed hoist and mount mouth inside staff's safety.

Drawings

FIG. 1 is a schematic view of the overall structure of a door panel in the vertical position according to the embodiment of the present application;

FIG. 2 is a schematic view of the overall structure of the door panel in the horizontal position according to the embodiment of the present application;

FIG. 3 is a schematic structural diagram of a fixed steel bracket and an electric hoist in the embodiment of the application;

FIG. 4 is a schematic sectional view of the connecting member and the fixing hole in the embodiment of the present application;

FIG. 5 is an enlarged schematic view of portion A of FIG. 2;

fig. 6 is a schematic structural view of a locking assembly, a fixing seat and a hinge shaft in the embodiment of the present application;

fig. 7 is an enlarged schematic view of a portion B in fig. 6.

Reference numerals: 1. an upper beam; 2. a lower beam; 3. a roller shutter door; 4. a door panel; 5. an electric hoist; 6. a connecting member; 7. a first guard rail; 8. a second guard rail; 9. a fixing assembly; 91. a thin steel sheet; 92. a screw; 10. a shutter grille; 11. a locking assembly; 111. a strip-shaped thin steel plate; 112. a bolt; 12. a first safety protection alarm lamp; 13. a first contact sensor; 14. a first contact pad; 15. a second safety protection alarm lamp; 16. a second contact sensor; 17. a second contact pad; 18. fixing the steel bracket; 19. a through hole; 20. a fixing hole; 21. a first groove; 22. a second groove; 23. a third groove; 24. a fixed seat; 25. and (4) hinging the shaft.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses a novel lifting opening combination protection device for bread production. Referring to fig. 1 and 2, a novel hoist and mount mouth combination protector for bread production is including setting up the entablature 1 at hoist and mount mouth top, the underbeam 2 of setting in hoist and mount mouth bottom, set up rolling slats door 3 and the door plant 4 in hoist and mount mouth department, entablature 1 and underbeam 2 are concrete structure roof beam, door plant 4 is the light steel door plant, the fixed two fixing bases 24 that are provided with in both ends of underbeam 2, fixed articulated shaft 25 of wearing to be equipped with in the fixing base 24, the one end of door plant 4 is rotated the cover and is established on articulated shaft 25 and articulated mutually with underbeam 2, be provided with on the entablature 1 and be used for ordering about door plant 4 around underbeam 2 towards being close to/keeping away from hoist and mount mouth direction pivoted drive assembly, rolling slats door 3 is fixed to be set up on entablature 1, and rolling slats door 3 is located door plant 4 and is close to hoist intraoral one side.

For the security when guaranteeing the staff and transport the bread production on door plant 4 and use the goods, refer to fig. 2, the one end that door plant 4 kept away from underbeam 2 is articulated to be provided with first protection railing 7, and the both sides of door plant 4 are equallyd divide and are do not articulated to be provided with the second and prevent railing 8, are provided with on the door plant 4 to be used for preventing first protection railing 7 and second and prevent railing 8 and fix the fixed subassembly 9 with door plant 4 looks vertical position.

In order to further improve the safety of the hoisting operation, referring to fig. 2, a shutter grille 10 is hinged to the lower beam 2, the shutter grille 10 is located between the rolling door 3 and the door plate 4, and a locking assembly 11 for locking the shutter grille 10 in a vertical position is arranged on the shutter grille 10.

For the security of guarantee drive assembly matter order about door plant 4 and hoist and mount operation when rotating, refer to fig. 1 and fig. 2, be provided with first safety protection alarm lamp 12 on the underbeam 2, be provided with second safety protection alarm lamp 15 on the underbeam 1, when door plant 4 left vertical position, first safety protection alarm lamp 12 was reported to the police, when door plant 4 rotated horizontal position, second safety protection alarm lamp 15 was reported to the police.

When carrying out the hoist and mount operation, open rolling slats door 3 earlier, order about door plant 4 through drive assembly and rotate towards the direction of keeping away from the hoist and mount mouth, second safety protection alarm lamp 15 reports to the police this moment, and after door plant 4 rotated the horizontal position from vertical position, first safety protection alarm lamp 12 reported to the police, and drive assembly stop drive. At this moment, the lifted goods for bread production are placed on the door plate 4, the door blocking grating 10 rotates towards the door plate 4, the worker walks on the door plate 4, the first protective barrier 7 and the second protective barrier 8 are opened and fixed at the positions perpendicular to the door plate 4, and the worker unloads the goods and transports the goods through the lifting opening.

Referring to fig. 1, in the embodiment of the present application, the rolling door 3 is an electric fire-resistant rolling door, which is convenient to operate and has a fire-resistant function to ensure the safety inside the hoisting opening, and in other embodiments, the rolling door 3 may also be a manual rolling door, a general rolling door, an anti-wind rolling door, or the like.

Referring to fig. 1 and 2, the driving assembly includes an electric hoist 5 and a connecting member 6, in order to drive the door panel 4 more stably, in the embodiment of the present application, the driving assemblies are arranged in two groups, and in other embodiments, the driving assemblies may also be arranged in one group, three groups, and the like. Correspondingly, the electric hoist 5 is a group-hanging electric hoist, and the two electric hoists 5 are respectively and fixedly connected to two ends of the upper beam 1 and positioned between the rolling door 3 and the door plate 4, so that the retraction of the traction rope is synchronously realized. In the embodiment of the present application, the traction rope of the electric hoist 5 is a steel wire rope, and in other embodiments, the traction rope may also be a loop chain.

Referring to fig. 3, a fixed steel support 18 is embedded in the lower end of the upper beam 1, the fixed steel support 18 is located on one side of the electric hoist 5 away from the roller shutter door 3, the length direction of the fixed steel support 18 is consistent with the length direction of the upper beam 1, and the fixed steel support 18 is used for abutting the door panel 4 when the door panel 4 rotates to a vertical position. The through hole 19 is opened with the position that electric block 5 corresponds on the fixed steel support 18, and electric block 5's wire rope's one end passes through hole 19 earlier, and the rethread connecting piece 6 is connected with the one end that door plant 4 kept away from underbeam 2.

Referring to fig. 2 and 4, in the embodiment of the present application, the connecting member 6 is a square, thin steel sheet, two fixing holes 20 are formed in one end of the door panel 4 away from the lower beam 2, the two fixing holes 20 are arranged at intervals along the length direction of the lower beam 2, one end of the steel wire rope penetrating through the fixing holes 20 is welded to the steel sheet, the steel wire rope penetrates through the fixing holes 20 for convenience of installation, the aperture of one side of the fixing hole 20 away from the steel sheet is larger than the aperture of the other side, and the aperture of one side of the fixing hole 20 close to the steel sheet is smaller than the side length of the steel sheet. In other embodiments, the connecting member 6 may also be configured as a lifting hook, two lifting rings are welded at one end of the door panel 4 far away from the lower beam 2, the two lifting rings are arranged at intervals along the length direction of the lower beam 2, and the connection between the steel wire rope and the door panel 4 is realized through the movable connection between the lifting hook and the lifting rings.

Referring to fig. 2, two second safety protection alarm lamps 15 are fixedly arranged on the inner side wall and the outer side wall of the upper beam 1, two second contact sensors 16 are embedded in one side, away from the electric block 5, of the fixed steel support 18, and the second safety protection alarm lamps 15 are electrically connected with the second contact sensors 16. Two second contact cushion blocks 17 are embedded in positions, corresponding to the two second contact sensors 16, on the door panel 4, when the door panel 4 is located at a vertical position and is abutted against the fixed steel support 18, the second contact cushion blocks 17 and the second contact sensors 16 are extruded mutually, and at the moment, the second safety protection alarm lamp 15 does not give an alarm; when the door panel 4 leaves the vertical position, the second contact pad 17 separates from the second contact sensor 16 and triggers the second safety protection warning lamp 15 to alarm.

Referring to fig. 2 and 5, two first safety protection alarm lamps 12 are fixedly arranged on the outer side wall of the lower beam 2, two first contact sensors 13 are embedded on the outer side wall of the lower beam 2, and the first safety protection alarm lamps 12 are electrically connected with the first contact sensors 13. Two first contact cushion blocks 14 are embedded in positions, corresponding to the two first contact sensors 13, of the door panel 4, and when the door panel 4 rotates to a horizontal position, the first contact cushion blocks 14 and the first contact sensors 13 are mutually extruded and trigger the first safety protection alarm lamp 12 to alarm.

When carrying out the hoist and mount operation, open electric fireproof rolling shutter door 3 earlier, restart electric block 5, door plant 4 rotates and leaves vertical position around underbeam 2 under gravity and electric block 5's wire rope's traction force effect, second contact cushion 17 and the separation of second contact inductor 16, trigger the 15 reports to the police of second safety protection alarm lamp, when door plant 4 rotates horizontal position, first contact cushion 14 extrudees each other with first contact inductor 13, trigger the 12 reports to the police of first safety protection alarm lamp, can close electric block 5 this moment.

Referring to fig. 6, the locking assembly 11 includes a bar-shaped thin steel plate 111 and a plurality of bolts 112, the bar-shaped thin steel plate 111 is welded at one end of the shutter grille 10 close to the lower beam 2 and is located at one side of the shutter grille 10 far away from the door panel 4, the length direction of the bar-shaped thin steel plate 111 is consistent with the length direction of the lower beam 2, one side of the bar-shaped thin steel plate 111 far away from the door panel 4 is welded with a plurality of sleeves, the plurality of sleeves are uniformly arranged along the length direction of the bar-shaped thin steel plate 111, the plurality of bolts 112 are in one-to-one correspondence with the plurality of sleeves, and the bolts 112 slide to penetrate through the sleeves. The corresponding positions of the lower beam 2 are provided with a plurality of holes for inserting the bolts 112, and when the shutter grille 10 is located at the vertical position, the bolts 112 are inserted into the holes on the lower beam 2 through the sleeves, so that the shutter grille 10 is locked.

Referring to fig. 6, a third groove 23 is formed in the door panel 4, the hinge shaft 25 is partially exposed in the third groove 23, and one end of the door blocking grille 10 close to the door panel 4 is located in the third groove 23 and rotatably sleeved on the hinge shaft 25.

Referring to fig. 2, a first groove 21 and a second groove 22 are formed in a door panel 4, steel structure hinge linking elements are arranged in the first groove 21 and the second groove 22, a first guard rail 7 and two second guard rails 8 are hinged to the door panel 4 through the steel structure hinge linking elements, the first guard rail 7 is movably placed in the first groove 21, the second guard rail 8 is movably placed in the second groove 22, the area for placing goods on the door panel 4 is larger, and the steel structure hinge linking elements are arranged at the edge of the door panel 4. First guardrail bar 7 and second guardrail bar 8 are the steel railing, and intensity is high, and the security performance is good.

Referring to fig. 6 and 7, three sets of fixing assemblies 9 are provided, the three sets of fixing assemblies 9 respectively correspond to the first guard rail 7 and the two second guard rails 8 one to one, one of the fixing assemblies 9 is located on one side of the first guard rail 7, and the other two fixing assemblies 9 are respectively located on one sides of the two second guard rails 8. The fixing component 9 comprises a thin steel sheet 91 welded on the door panel 4 and a screw 92 for fixing, a threaded hole is formed in the thin steel sheet 91 in a penetrating mode, and the screw 92 is adjustably installed on the thin steel sheet 91 through the threaded hole. The joint hole has been seted up to corresponding position in first guardrail bar 7 and two second guardrail bars 8, when first guardrail bar 7 and two second guardrail bars 8 rotate to with door plant 4 looks vertically position, the screw hole aligns with the joint hole, with screw 92 precession joint hole this moment to it is fixed with first guardrail bar 7 and two second guardrail bars 8.

The implementation principle of the novel lifting opening combined protection device for bread production is as follows: when carrying out the hoist and mount operation, open rolling slats door 3 earlier, start electric block 5, wire rope emits from electric block 5, and door plant 4 rotates towards the direction of keeping away from hoist and mount mouth under gravity and wire rope's traction force effect, and second contact cushion 17 and the separation of second contact inductor 16 trigger the warning of second safety protection alarm lamp 15 this moment. After the door panel 4 rotates to the horizontal position from the vertical position, the first contact cushion block 14 and the first contact sensor 13 are mutually extruded, and the first safety protection alarm lamp 12 is triggered to alarm. And closing the electric hoist 5, stopping the steel wire rope to be discharged, and placing the door panel 4 at a horizontal position stably.

The lifted goods for bread production are placed on the door plate 4, the bolt 112 is opened again, the shutter grille 10 is unlocked and folded and placed in the third groove 23, the worker walks onto the door plate 4, the first protective railing 7 and the two second protective railings 8 are rotated and fixed at positions perpendicular to the door plate 4 through the screws 92, and the worker unloads the goods and transports the goods through the lifting opening.

After the hoist and mount operation is accomplished, screw 92 is unscrewed earlier, fold first guardrail bar 7 and place in first recess 21, fold two second guardrail bars 8 and place in second recess 22, rotate shutter grille 10 and through the locking of bolt 112 in vertical position, restart electric block 5 packs up wire rope, door plant 4 is drawn and rotates towards the direction that is close to the hoist and mount mouth, first contact pad 14 separates with first contact inductor 13 this moment, first safety protection alarm lamp 12 stops to report to the police. After the door panel 4 rotates to the vertical position from the horizontal position, the second contact cushion block 17 and the second contact sensor 16 are mutually extruded, the second safety protection alarm lamp 15 stops alarming, and finally the rolling door 3 is closed.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a novel hoist and mount mouth combination protector for bread production, sets up door plant (4) in hoist and mount mouth department including opening and shutting, its characterized in that: still including setting up upper beam (1) at the hoist and mount mouth top and setting underbeam (2) in the hoist and mount mouth bottom, door plant (4) are articulated to be set up on underbeam (2), be provided with on upper beam (1) and be used for driving about door plant (4) are close to/keep away from hoist and mount mouth direction pivoted drive assembly.

2. The novel lifting opening combined protection device for bread production according to claim 1, characterized in that: the driving assembly comprises an electric hoist (5) and a connecting piece (6), wherein the connecting piece (6) is arranged at one end of a traction rope of the electric hoist (5), and the traction rope of the electric hoist (5) is connected with one end, far away from the lower beam (2), of the door plate (4) through the connecting piece (6).

3. The novel lifting opening combined protection device for bread production according to claim 1, characterized in that: the door plate is characterized in that a first protective railing (7) and two second protective railings (8) are hinged to the door plate (4), the first protective railing (7) is located at one end, away from the lower beam (2), of the door plate (4), the second protective railings (8) are arranged along the length direction of the lower beam (2) at intervals, and fixing assemblies (9) used for fixing the first protective railing (7) and the second protective railings (8) at the positions perpendicular to the door plate (4) are arranged on the door plate (4).

4. The novel lifting opening combined protection device for bread production as claimed in claim 3, characterized in that: the door-blocking grating is characterized by further comprising a door-blocking grating (10), one end of the door-blocking grating (10) is hinged to the lower beam (2), and a locking assembly (11) used for locking the door-blocking grating (10) at a vertical position is arranged on the door-blocking grating (10).

5. The novel lifting opening combined protection device for bread production as claimed in claim 4, characterized in that: the door plate (4) is provided with a first groove (21), a second groove (22) and a third groove (23), the first protective railing (7) is movably placed in the first groove (21), the second protective railing (8) is movably placed in the second groove (22), and the door blocking grating (10) is movably placed in the third groove (23).

6. The novel lifting opening combined protection device for bread production according to claim 1, characterized in that: be provided with first safety protection alarm lamp (12) and first contact inductor (13) on the lateral wall of underbeam (2), first safety protection alarm lamp (12) are connected with first contact inductor (13) automatically controlled, door plant (4) are close to the first contact pad piece (14) of one end fixedly connected with of underbeam (2), work as when door plant (4) are opened to horizontal position, first contact pad piece (14) with first contact inductor (13) extrude each other and trigger first safety protection alarm lamp (12) report to the police.

7. The novel lifting opening combined protection device for bread production according to claim 1, characterized in that: be provided with second safety protection alarm lamp (15) on the inside wall and the lateral wall of entablature (1), the lower extreme of entablature (1) is provided with second contact inductor (16), second safety protection alarm lamp (15) are connected with second contact inductor (16) automatically controlled, door plant (4) are kept away from the one end fixedly connected with second contact cushion (17) of underbeam (2), work as door plant (4) drive second contact cushion (17) move to with during second contact inductor (16) separation, second contact inductor (16) trigger second safety protection alarm lamp (15) report to the police.

8. The novel lifting opening combined protection device for bread production as claimed in claim 1, characterized in that: the novel door is characterized by further comprising a rolling door (3) arranged at the position of the lifting hole, wherein the door panel (4) is located on the outer side of the rolling door (3).

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