Construction elevator interlock door

Abstract

The application belongs to the technical field of building construction equipment, and discloses a construction elevator linkage door, which comprises a construction elevator, fixed clamps are arranged on the front and rear sides of the construction elevator, rotating wheels are arranged between the inner sides of the two fixed clamps and the construction elevator, C-shaped fixed plates are arranged on the front and rear sides of one side of the construction elevator, fixed bolts are arranged on the lower sides of the C-shaped fixed plates, fixed frames are arranged on the bottom edges of the front and rear sides of the construction elevator, and transition steps are arranged between the fixed frames. In the application, when the transition steps need to be stabilized, the clamping and stabilizing mechanism is connected with the construction elevator, and the rotating inclined plate in the clamping and stabilizing mechanism is connected with the construction floor, so that the transition steps are more stable. After the transition steps and the construction elevator are closed, the fixed mechanism and the clamping and stabilizing mechanism are connected, so that the closure is more firm and the safety is improved.

Description

Technical Field

[0001] This invention belongs to the field of construction equipment technology, and specifically relates to a construction elevator linkage door. Background Technology

[0002] Construction elevator doors, also known as construction elevator safety doors or elevator shaft safety doors, are crucial safety facilities on construction sites to prevent workers or materials from falling into the elevator shaft. Their design and installation must adhere to strict regulations to ensure the safety of construction personnel. Existing construction elevator doors typically require manual opening and closing, making the operation inconvenient and posing certain safety risks. Furthermore, the rotating steps are difficult to secure after docking with the construction floor, resulting in poor stability and significant safety hazards due to frequent passage of goods and workers. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a construction elevator linkage door.

[0004] The present invention achieves the above objectives through the following technical solutions: Design a construction elevator linkage door, comprising: a construction hoist, wherein fixed clamps are fixedly installed on the upper front and rear sides of the construction hoist, and rotating wheels are rotatably installed between the inner sides of the two fixed clamps and the construction hoist; C-shaped fixed plates are fixedly installed on the upper front and rear sides of one side of the construction hoist, and fixed bolts are fixedly installed on the lower side of the C-shaped fixed plates; fixed frames are fixedly installed on the bottom edges of the front and rear sides of the construction hoist, and transition steps are fixedly installed between the fixed frames; The transition pedal is provided with a clamping and stabilizing mechanism through its front and rear sides. The clamping and stabilizing mechanism includes a slide groove. A protrusion is fixedly provided on one side of the inner wall of the slide groove. A second spring is fixedly provided on one side of the protrusion. A clamping slider is slidably provided on the inner side of the slide groove. A limit fixing rod is fixedly provided on the top side of the clamping slider.

[0005] Furthermore, a fixed connecting rod is fixedly installed on one side of the limiting and fixing rod near the top, a synchronous belt is fixedly installed on one side of the limiting and fixing rod near the bottom, a connecting fixing plate is fixedly installed on the front and rear sides of the inner wall of the slide groove near the bottom, and a limiting rod is fixedly installed between the two connecting fixing plates.

[0006] Furthermore, a connecting frame is fixedly provided on one side of the synchronous belt, and torsion springs are provided on the front and rear sides of the inner wall of the connecting frame, with rotating inclined plates rotatably provided on the inner sides of the two torsion springs.

[0007] Furthermore, one end of the synchronous belt is connected to the clamping slider, the middle position is restricted to sliding over two connecting fixing plates and a limiting rod, and the other end is connected to the connecting frame, on the top side of which a second connecting block is fixedly installed.

[0008] Furthermore, a pull handle is fixedly installed on the upper front and rear sides of the transition pedal, and a connecting rope is directly installed on the pull handle, the wheel and the fixing bolt.

[0009] Furthermore, the transition pedal includes a support plate, on one side of which two slots are formed. A fixed inclined plate is fixedly disposed on the lower side of the slot, and a first connecting block is fixedly disposed on the upper side of the slot. A first spring is fixedly disposed on one side of the first connecting block.

[0010] Furthermore, a limiting mechanism is fixedly provided on both the front and rear sides of one side of the transition pedal. The limiting mechanism includes a fixed block, and a hinged connecting plate is fixedly provided on the top side of the fixed block. A rotating sleeve is hinged to the top side of the hinged connecting plate.

[0011] Furthermore, the construction hoist is fixedly provided with support limiting plates at both the front and rear sides of its inner side, and a fixing mechanism is rotatably provided on the inner side of the two support limiting plates. The fixing mechanism includes a handle, and a connecting short plate is fixedly provided on the bottom side of the handle.

[0012] Furthermore, a rotating ring is fixedly provided on the bottom side of the connecting short plate, a slot is provided on the outer surface of the rotating ring, and two inner protrusions are fixedly provided on the inner side of the rotating ring.

[0013] Furthermore, a C-shaped sliding plate is slidably provided on the inner side of the C-shaped fixing plate, a backing plate is fixedly provided on one side of the C-shaped sliding plate, a C-shaped clamping plate is fixedly provided on the lower side of the C-shaped fixing plate, and the fixing bolt passes through the C-shaped clamping plate and contacts the C-shaped fixing plate.

[0014] With the above structure, during use, when the construction hoist descends to the construction floor, the construction personnel start the turntable to rotate counterclockwise, causing the connecting rope on the surface of the turntable to rotate around the turntable. Then, the upper end of the connecting rope, through the fixing bolts, moves the C-shaped clamp and C-shaped sliding plate upward along the longitudinal direction of the C-shaped fixed plate, opening half of the exit of the construction hoist mechanism. At the same time, the construction personnel manually rotate the fixed mechanism inside, so that the rotating ring and the inner protrusion of the ring in the fixed mechanism are no longer locked with the limit fixing rod. When the connecting rope pulls the C-shaped sliding plate and C-shaped clamp upward, the pull handle connected to the lower end of the connecting rope will also be lowered to lower the transition pedal, completing the opening of the construction hoist mechanism at the same time.

[0015] When transporting items, the transition platform is first lowered to be level with the construction floor. Then, the limiting and fixing rod is pulled towards the construction hoist. When the synchronous belt is slack, the first spring pulls the second connecting block on the top side of the connecting frame, moving the connecting frame and causing the rotating inclined plate inside the connecting block to contact the fixed inclined plate. The rotating inclined plate contacts and rotates downward, forming an acute angle with the connecting frame. The connecting frame then enters the slotted inner wall between the fixed inclined plate and the first connecting block, and finally abuts against the connecting floor. As the clamping slider moves, the fixed connecting rod above the synchronous belt passes through the limiting mechanism and is engaged in the construction hoist. At this point, the rotating sleeve rotates around the hinged connecting plate, passing the limiting and fixing rod, fixing the position of the clamping slider and preventing the synchronous belt from moving. This avoids shaking of the transition platform during transportation, improving the stability of the transition platform and ensuring the safety of construction personnel.

[0016] After the support plate is closed, the construction workers rotate the fixing mechanism inside the construction hoist. The top side of the inner protrusion plate in the fixing mechanism directly contacts the bottom side of the limiting fixing rod, making the fixing mechanism impossible to remove, thus completing the fixing. Conversely, rotating the fixing mechanism in the opposite direction will release the fixing.

[0017] In summary, through the transition step and the clamping and stabilizing mechanism and limiting mechanism on one side of the transition step, after the transition step is placed down, it abuts against the building connection platform, making the construction hoist and the building connection platform more stable and ensuring the safety of transporting goods and construction personnel when passing through. By working together with the fixing mechanism and the stop plate, the transition step is closed behind the construction hoist, making the fixation of the transition step more stable and ensuring the normal operation of the construction hoist and the safety of the construction personnel inside. The fixed-length connecting rope between the fixed bolt, the wheel, and the pull handle rotates around the wheel. As the wheel rotates to one side, the fixed bolt rises and the pull handle descends. The opposite occurs when the wheel rotates in reverse, allowing the transition pedal to rise and fall automatically, reducing the risk to construction workers pulling the transition pedal from the outside. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a front view of the present invention; Figure 2This is a top-side view of the present invention; Figure 3 This is a side view of the present invention near the fixed clamp shaft; Figure 4 This is a side view of the invention near the fixed frame; Figure 5 This is a side view of the transition pedal being lowered according to the present invention; Figure 6 This is the present invention. Figure 5 Enlarged view of point A; Figure 7 This is an isometric view of the clamping and stabilizing mechanism of the present invention; Figure 8 This is an isometric view of the top side of the transition pedal of the present invention; Figure 9 This is an axonometric view of the bottom side of the transition pedal of the present invention; Figure 10 This is the present invention. Figure 9 Enlarged view of point B; Figure 11 This is a half-transition pedal axle view of the present invention; Figure 12 This is an isometric view of the clamping and stabilizing mechanism of the present invention; Figure 13 This is the present invention. Figure 12 Enlarged view of point C; Figure 14 This is the present invention. Figure 12 Enlarged view of point D; Figure 15 This is a bottom-view axonometric view of the transition pedal of the present invention; Figure 16 This is the present invention. Figure 15 Enlarged axonometric view at point E.

[0020] The annotations in the attached figures are explained as follows: 1. Construction hoist; 2. Fixing clamp; 3. Fixing bolt; 4. Connecting rope; 5. C-shaped fixing plate; 6. Fixing frame; 7. Transition step; 701. Support plate; 702. Slot; 703. Fixing inclined plate; 704. First connecting block; 705. First spring; 8. Pull handle; 9. C-shaped sliding plate; 10. C-shaped clamp; 11. Support plate; 12. Rotary wheel; 13. Support limiting plate; 14. Clamping stabilizing mechanism; 1401. Slide groove; 1402. Protrusion; 1403. Second spring; 1404. Clamping slider ; 1405, Limiting and fixing rod; 1406, Fixing connecting rod; 1407, Connecting and fixing plate; 1408, Limiting rod; 1409, Synchronous belt; 1410, Connecting frame; 1411, Torsion spring; 1412, Rotating inclined plate; 1413, Second connecting block; 15, Limiting mechanism; 1501, Fixing block; 1502, Hinge connecting plate; 1503, Rotating sleeve; 16, Fixing mechanism; 1601, Grip handle; 1602, Connecting short plate; 1603, Rotating ring; 1604, Slot; 1605, Inner protrusion plate of ring. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0022] See Figures 1-9 As shown, the present invention provides a construction elevator linkage door, comprising: a construction hoist 1, wherein fixed clamps 2 are fixedly installed on the upper front and rear sides of the construction hoist 1, and a rotating wheel 12 is rotatably installed between the inner sides of the two fixed clamps 2 and the construction hoist 1; a C-shaped fixed plate 5 is fixedly installed on the upper front and rear sides of one side of the construction hoist 1, and a fixing bolt 3 is fixedly installed on the lower side of the C-shaped fixed plate 5; a fixed frame 6 is fixedly installed on the bottom edge of the front and rear sides of the construction hoist 1; a transition step 7 is fixedly installed between the fixed frames 6; a C-shaped sliding plate 9 is slidably installed on the inner side of the C-shaped fixed plate 5; a stop plate 11 is fixedly installed on one side of the C-shaped sliding plate 9; a C-shaped clamp 10 is fixedly installed on the lower side of the C-shaped fixed plate 5; the fixing bolt 3 passes through the C-shaped clamp 10 and contacts the C-shaped fixed plate 5; and a pull handle 8 is fixedly installed on the upper front and rear sides of the transition step 7; a connecting rope 4 is directly installed between the pull handle 8, the rotating wheel 12 and the fixing bolt 3. Using the above technical solution, the upper door of the construction hoist 1 is formed by the C-shaped fixed plate 5 on one side of the construction hoist 1, the C-shaped sliding plate 9, and the stop plate 11. The lower door is formed by the supporting transition plate 701, dividing the door into two parts. The lower part can also be used as a step between the construction floor and the construction floor, so that construction personnel can enter the construction floor from the construction hoist 1. The length of the connecting rope 4 cannot be changed. When the C-shaped clamp 10 connected to the fixing bolt 3 moves upward along the C-shaped fixed plate 5, one end of the connecting rope 4 connected to the fixing bolt 3 moves upward, so that the other end is extended, thereby giving the transition step 7 space to rotate within the fixed frame 6. When the fixing mechanism 16 is not used, the upper and lower doors are fully automatic and can be opened and closed by the turntable 12.

[0023] See Figures 11-16 As shown, a clamping and stabilizing mechanism 14 is provided through the front and rear sides of the transition pedal 7. The clamping and stabilizing mechanism 14 includes a slide groove 1401. A protrusion 1402 is fixedly provided on one side of the inner wall of the slide groove 1401. A second spring 1403 is fixedly provided on one side of the protrusion 1402. A clamping slider 1404 is slidably provided on the inner side of the slide groove 1401. A limit fixing rod 1405 is fixedly provided on the top side of the clamping slider 1404. A fixed connecting rod 1406 is fixedly provided on one side of the limit fixing rod 1405. A synchronous belt 1409 is fixedly provided on one side of the limit fixing rod 1405. The slide groove 1401... A connecting fixing plate 1407 is fixedly installed on the lower front and rear sides of the inner wall. A limit rod 1408 is fixedly installed between the two connecting fixing plates 1407. A connecting frame 1410 is fixedly installed on one side of the synchronous belt 1409. Torsion springs 1411 are installed on the front and rear sides of the inner wall of the connecting frame 1410. A rotating inclined plate 1412 is rotatably installed on the inner side of the two torsion springs 1411. One end of the synchronous belt 1409 is connected to the clamping slider 1404, and the middle position is restricted to slide through the two connecting fixing plates 1407 and the limit rod 1408. The other end is connected to the connecting frame 1410. A second connecting block 1413 is fixedly installed on the top side of the connecting frame 1410.

[0024] In use, when the construction worker pulls the clamping slider 1404 toward the position of the construction hoist 1, the clamping slider 1404 causes the fixed connecting rod 1406 to move in the same direction, and moves the timing belt 1409, providing space for the other end of the timing belt 1409 to be pulled. At the same time, the other end of the timing belt 1409 is connected to the connecting frame 1410. Furthermore, the first spring 705 on one side of the first connecting block 704 in the transition pedal 7 is connected to the second connecting block 1413 on the top side of the connecting frame 1410, pulling the connecting frame 1410 toward the first connecting block 704. During the movement of the connecting frame 1410, the rotating inclined plate 1412 will come into contact with the fixed inclined plate 703, causing the rotating inclined plate 1412 to rotate. As the connecting frame 1410 approaches... The first connecting block 704 rotates at an increasingly larger angle as the inclined plate 1412 rotates until the connecting frame 1410 is engaged between the fixed inclined plate 703 and the first connecting block 704. At this point, the tilt angle of the inclined plate 1412 reaches its maximum and abuts against the construction floor, making it more stable during transportation. Simultaneously, as the clamping slider 1404 moves, it carries the fixed connecting rod 1406 towards the construction hoist 1, passing through the limiting mechanism 15. The fixed connecting rod 1406 is then engaged into the construction hoist 1, making the transition pedal 7 more stable. The rotating sleeve 1503 rotates around the hinged connecting plate 1502 and engages with the body of the limiting fixed rod 1405, thus fixing and stabilizing the position of the clamping slider 1404 and the tilt angle of the inclined plate 1412.

[0025] See Figures 15-16 As shown, the transition pedal 7 includes a support plate 701. Two slots 702 are opened on one side of the support plate 701. A fixed inclined plate 703 is fixedly installed on the lower side of the slot 702, and a first connecting block 704 is fixedly installed on the upper side of the slot 702. A first spring 705 is fixedly installed on the side of the first connecting block 704.

[0026] In use, the slot 702 on one side of the support plate 701 has a first connecting block 704 at the top and a fixing inclined plate 703 at the bottom. The gap between them is enough for the connecting frame 1410 to be inserted. At the same time, the first spring 705 is set on the side of the first connecting block 704 at the top and is connected to the second connecting block 1413 in the clamping and stabilizing mechanism 14, giving the connecting frame 1410 support and continuous tension.

[0027] See Figure 11 As shown, a limiting mechanism 15 is fixedly installed on both the front and back sides of the transition pedal 7. The limiting mechanism 15 includes a fixing block 1501. A hinged connecting plate 1502 is fixedly installed on the top side of the fixing block 1501. A rotating sleeve 1503 is hinged to the top side of the hinged connecting plate 1502.

[0028] In practical use, the fixing block 1501 is fixedly installed on one side of the transition pedal 7, close to the clamping and stabilizing mechanism 14. At the same time, the rotating sleeve 1503 is rotatably installed on the top side of the hinged connecting plate 1502. The width of the rotating sleeve 1503 is greater than the protruding plates on both sides of the limiting fixing rod 1405. After the rotating sleeve 1503 fits the limiting fixing rod 1405, it limits the position of the clamping slider 1404, so that the clamping slider 1404 cannot be pulled by the second spring 1403. This completes the fixing of the connecting rod 1406 into the inside of the construction hoist 1 and the rotating inclined plate 1412 against the connecting floor, so that the transition pedal 7 remains stable after being leveled, ensuring the safety of transportation and construction personnel during passage.

[0029] See Figure 6 As shown, the construction hoist 1 is fixedly provided with support limiting plates 13 at both the front and rear sides of its inner side. The two support limiting plates 13 are rotatably provided with fixing mechanisms 16. The fixing mechanism 16 includes a grip handle 1601. A connecting short plate 1602 is fixedly provided on the bottom side of the grip handle 1601. A rotating ring 1603 is fixedly provided on the bottom side of the connecting short plate 1602. A slot 1604 is opened on the outer surface of the rotating ring 1603. Two inner protrusions 1605 are fixedly provided on the inner side of the rotating ring 1603.

[0030] In the above embodiment, the support limiting plate 13 is locked inside the slot 1604 of the rotating ring 1603, limiting the position of the fixing mechanism 16, so that the fixing mechanism 16 can rotate around the support limiting plate 13, and the grip handle 1601 can quickly rotate the rotating ring 1603 through the connecting short plate 1602. When the grip handle 1601 is horizontal, the limiting fixing rod 1405 in the clamping stabilizing mechanism 14 can be locked inside the rotating ring 1603. When the grip handle 1601 is vertically upward, it can contact the plates on both sides of the limiting fixing rod 1405, and fix the position of the transition pedal 7 a second time, so that the transition pedal 7 is more stable after closing.

[0031] With the above structure, during use, when the construction hoist 1 descends to the construction floor, the construction personnel start the turntable 12 to rotate counterclockwise, causing the connecting rope 4 on the surface of the turntable 12 to rotate around the turntable 12. Then, the upper end of the connecting rope 4 moves the C-shaped clamp 10 and the C-shaped sliding plate 9 upward along the longitudinal direction of the C-shaped fixed plate 5 through the fixing bolt 3, opening half of the exit of the construction hoist 1. At the same time, the construction personnel manually rotate the fixing mechanism 16 inside, so that the rotating ring 1603 and the inner protrusion 1605 in the fixing mechanism 16 are no longer locked with the limiting fixing rod 1405. When the connecting rope 4 pulls the C-shaped sliding plate 9 and the C-shaped clamp 10 upward, the pull handle 8 connected to the lower end of the connecting rope 4 will also be lowered to lower the transition pedal 7, thus completing the opening of the construction hoist 1.

[0032] When transporting items, first lower the transition step 7 to be level with the construction floor. Then, pull the limit fixing rod 1405 towards the construction hoist 1. When the synchronous belt 1409 is in a slack state, the first spring 705 will pull the second connecting block 1413 on the top side of the connecting frame 1410, pulling the position of the connecting frame 1410. This causes the rotating inclined plate 1412 inside the connecting frame 1410 to contact the fixed inclined plate 703, making the rotating inclined plate 1412 contact and rotate downwards. The rotating inclined plate 1412 and the connecting frame 1410 directly form an acute angle, and the connecting frame 1410 enters the fixed inclined plate. The 703 and the first connecting block 704 abut against each other and against the inner wall of the slot 702, and then the rotating inclined plate 1412 abuts against the connecting floor. As the clamping slider 1404 moves, the fixed connecting rod 1406 above the synchronous belt 1409 passes through the limiting mechanism 15 and is inserted into the construction hoist 1. At this time, the rotating sleeve 1503 rotates around the hinged connecting plate 1502, passes through the limiting fixing rod 1405, and fixes the position of the clamping slider 1404, so that the synchronous belt 1409 cannot move, avoiding the transition pedal 7 from shaking during transportation, improving the stability of the transition pedal 7 and ensuring the safety of construction personnel.

[0033] After the support plate 701 is closed, the construction personnel can rotate the fixing mechanism 16 inside the construction hoist 1. The top side of the inner ring protrusion 1605 in the fixing mechanism 16 will directly contact the bottom side of the limiting fixing rod 1405, making the fixing mechanism 16 unable to be removed, thus completing the fixing. Conversely, rotating the fixing mechanism 16 in the opposite direction will release the fixing.

[0034] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A construction elevator linkage door, characterized in that, include: Construction hoist (1), the construction hoist (1) is fixedly provided with a fixing clamp (2) on the upper front and rear sides, and a rotating wheel (12) is rotatably provided between the inner side of the two fixing clamps (2) and the construction hoist (1). A C-shaped fixing plate (5) is fixedly provided on the upper front and rear sides of one side of the construction hoist (1). A fixing bolt (3) is fixedly provided on the lower side of the C-shaped fixing plate (5). A fixing frame (6) is fixedly provided on the bottom edge of the front and rear sides of the construction hoist (1). A transition step (7) is fixedly provided between the fixing frames (6). The transition pedal (7) is provided with a clamping and stabilizing mechanism (14) through its front and rear sides. The clamping and stabilizing mechanism (14) includes a slide groove (1401). A protrusion (1402) is fixedly provided on one side of the inner wall of the slide groove (1401) near the top. A second spring (1403) is fixedly provided on one side of the protrusion (1402). A clamping slider (1404) is slidably provided on the inner side of the slide groove (1401) near the top. A limit fixing rod (1405) is fixedly provided on the top side of the clamping slider (1404). A fixed connecting rod (1406) is fixedly installed on one side of the limiting fixing rod (1405) near the top, and a synchronous belt (1409) is fixedly installed on one side of the limiting fixing rod (1405) near the bottom. A connecting fixing plate (1407) is fixedly installed on the front and rear sides of the inner wall of the slide groove (1401) near the bottom, and a limiting rod (1408) is fixedly installed between the two connecting fixing plates (1407).

2. The construction elevator linkage door according to claim 1, characterized in that: A connecting frame (1410) is fixedly provided on one side of the synchronous belt (1409). Torsion springs (1411) are provided on the front and rear sides of the inner wall of the connecting frame (1410). Rotating inclined plates (1412) are rotatably provided on the inner sides of the two torsion springs (1411).

3. The construction elevator linkage door according to claim 2, characterized in that: One end of the synchronous belt (1409) is connected to the clamping slider (1404), and the middle position is restricted to sliding over two connecting fixing plates (1407) and the limiting rod (1408). The other end is connected to the connecting frame (1410), and a second connecting block (1413) is fixedly provided on the top side of the connecting frame (1410).

4. The construction elevator linkage door according to claim 1, characterized in that: The transition pedal (7) is fixedly provided with a pull handle (8) on the upper front and rear sides, and the pull handle (8), the wheel (12) and the fixing bolt (3) are directly provided with a connecting rope (4).

5. The construction elevator linkage door according to claim 1, characterized in that: The transition pedal (7) includes a support plate (701). Two slots (702) are provided on one side of the support plate (701). A fixed inclined plate (703) is fixedly provided on the lower side of the slot (702), and a first connecting block (704) is fixedly provided on the upper side of the slot (702). A first spring (705) is fixedly provided on the side of the first connecting block (704).

6. The construction elevator linkage door according to claim 1, characterized in that: The transition pedal (7) is fixedly provided with a limiting mechanism (15) on both the front and back sides. The limiting mechanism (15) includes a fixed block (1501). A hinged connecting plate (1502) is fixedly provided on the top side of the fixed block (1501). A rotating sleeve (1503) is hinged to the top side of the hinged connecting plate (1502).

7. The construction elevator linkage door according to claim 1, characterized in that: The construction hoist (1) is fixedly provided with support limiting plates (13) on both the front and rear sides of its inner side. The two support limiting plates (13) are rotatably provided with fixing mechanisms (16) on their inner sides. The fixing mechanism (16) includes a grip handle (1601) and a connecting short plate (1602) is fixedly provided on the bottom side of the grip handle (1601).

8. The construction elevator linkage door according to claim 7, characterized in that: A rotating ring (1603) is fixedly provided on the bottom side of the connecting short plate (1602). A slot (1604) is provided on the outer surface of the rotating ring (1603). Two inner protrusions (1605) are fixedly provided on the inner side of the rotating ring (1603).

9. The construction elevator linkage door according to claim 1, characterized in that: A C-shaped sliding plate (9) is slidably provided on the inner side of the C-shaped fixing plate (5), and a backing plate (11) is fixedly provided on one side of the C-shaped sliding plate (9). A C-shaped clamping plate (10) is fixedly provided on the lower side of the C-shaped fixing plate (5), and the fixing bolt (3) passes through the C-shaped clamping plate (10) and contacts the C-shaped fixing plate (5).

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