Wellhead protection device for elevator engineering

Abstract

The utility model provides a well mouth protection device for elevator engineering, which comprises two first clamping plates and two second clamping plates, a plurality of first telescopic rods are arranged between the first clamping plates and the second clamping plates, a plurality of second telescopic rods are fixed between the two first clamping plates, rolling shafts are rotatably matched in the first clamping plates, and the rolling shafts are fixed in the second clamping plates. A protective net is arranged between the two winding shafts, a rotating head is arranged on the first clamping plate in a rotating fit mode, the rotating head corresponds to the winding shafts, and a self-locking structure is arranged between the rotating head and the winding shafts. According to the device, the first telescopic rods are installed between the first clamping plates and the second clamping plates, the second telescopic rods are installed between the two first clamping plates, and the device can be clamped and fixed in the elevator shaft opening through the first clamping plates and the second clamping plates, so that the device is fixed, punching in the elevator shaft opening is not needed, and damage to the wall face is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator shaft protection, in particular to a shaft protection device for elevator engineering. Background Technique

[0002] The elevator shaft refers to a cavity that runs through the bottom and top floors in a building before the elevator is installed and there is no protective fence, which is the key point of building construction safety protection. During construction, to ensure the safety of operators, an elevator shaft safety door is required to shield and protect the elevator shaft to prevent operators from falling into the elevator shaft. Most of the existing protections are achieved through fixed steel wire meshes. For example, the patent with the publication number CN219316850U discloses a tool-type protection door for the elevator shaft, including a rectangular protection frame. The rectangular protection frame is fixedly arranged inside the elevator shaft door opening. The bottom of the rectangular protection frame is closely attached to the ground. A steel wire mesh is fixedly arranged inside the rectangular protection frame. When installing this device, the protection frame needs to be fixed inside the elevator shaft through expansion bolts, so holes need to be drilled in the elevator shaft, resulting in damage to the wall surface of the elevator shaft.

[0003] Therefore, the utility model provides a shaft protection device for elevator engineering. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a shaft protection device for elevator engineering to solve the problems raised in the above background technique. The utility model can clamp and fix the device inside the elevator shaft through the first clamping plate and the second clamping plate, so as to fix the device, without drilling holes inside the elevator shaft, thus not causing damage to the wall surface; and can be protected through the protection net to ensure the protection effect on the elevator shaft.

[0005] To achieve the above purpose, the utility model is realized through the following technical solutions: A shaft protection device for elevator engineering includes two first clamping plates and two second clamping plates. A plurality of first telescopic rods are installed between the first clamping plate and the second clamping plate. A plurality of second telescopic rods are fixed between the two first clamping plates. A winding shaft is rotatably fitted inside the first clamping plate. A protection net is installed between the two winding shafts. A rotating head is rotatably fitted on the first clamping plate. The rotating head corresponds to the winding shaft. A self-locking structure is installed between the rotating head and the winding shaft.

[0006] Furthermore, the two ends of the first telescopic rod are respectively fixedly connected to the first clamping plate and the second clamping plate. The first telescopic rod, the first clamping plate and the second clamping plate form a C-shaped structure.

[0007] Furthermore, a groove is opened inside the first clamping plate. The winding shaft is rotatably fitted inside the groove. The two ends of the protection net are respectively wound around the circumferences of the two winding shafts.

[0008] Further, the rotating head is fixedly connected to the winding shaft, and an internal hexagonal notch is formed in the rotating head.

[0009] Further, the self-locking structure includes a clamping block, a pressing plate is elastically fitted in the internal hexagonal notch, and the pressing plate is fixedly connected to the clamping block.

[0010] Further, a plurality of springs are fixed between the pressing plate and the bottom in the internal hexagonal notch, a connecting rod is fixed between the pressing plate and the clamping block, and the connecting rod is slidably connected to the winding shaft.

[0011] Further, a rotating groove and a plurality of clamping grooves are formed in the first clamping plate, both the rotating groove and the clamping grooves correspond to the clamping block, and the clamping grooves are communicated with the rotating groove.

[0012] Further, a through groove is formed in the winding shaft, the through groove is communicated with the rotating groove and the clamping grooves, and the through groove corresponds to the clamping block.

[0013] The beneficial effects of the present utility model: An elevator shaft opening protection device of the present utility model includes a first clamping plate; a second clamping plate; a first telescopic rod; a second telescopic rod; a winding shaft; a protection net.

[0014] A first telescopic rod is installed between the first clamping plate and the second clamping plate, and a second telescopic rod is installed between the two first clamping plates. The device can be clamped and fixed in the elevator shaft opening through the first clamping plate and the second clamping plate, so as to fix the device, without drilling holes in the elevator shaft opening, thus not damaging the wall surface. A winding shaft is installed in the first clamping plate, and a protection net is installed between the two winding shafts. The protection net can be used for protection to ensure the protection effect on the elevator shaft opening. Description of the Drawings

[0015] Figure 1 It is an assembled three-dimensional structure diagram of an elevator shaft opening protection device of the present utility model as a whole;

[0016] Figure 2 It is an assembled three-dimensional structure diagram of the first telescopic rod, the second telescopic rod, the first clamping plate, and the second clamping plate in an elevator shaft opening protection device of the present utility model;

[0017] Figure 3 It is an assembled three-dimensional structure diagram of the first clamping plate and the second clamping plate in an elevator shaft opening protection device of the present utility model;

[0018] Figure 4 It is an assembled sectional structure diagram of an elevator shaft opening protection device of the present utility model as a whole;

[0019] Figure 5 It is Figure 4 a schematic diagram at position A in

[0020] Figure 6 Schematic diagram of the assembly structure of the clamping block and the clamping groove in a wellhead protection device for an elevator project of the present utility model;

[0021] In the figure: 1. First telescopic rod; 2. Second telescopic rod; 3. First clamping plate; 4. Second clamping plate; 5. Protection net; 6. Groove; 7. Winding shaft; 8. Rotating head; 9. Hexagonal socket; 10. Pressing plate; 11. Spring; 12. Connecting rod; 13. Clamping groove; 14. Rotating groove; 15. Through groove; 16. Clamping block. Specific implementation mode

[0022] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation modes.

[0023] Please refer to Figures 1 to 6 , the present utility model provides a technical solution: a wellhead protection device for an elevator project, including two first clamping plates 3 and two second clamping plates 4. A plurality of first telescopic rods 1 are installed between the first clamping plate 3 and the second clamping plate 4. A plurality of second telescopic rods 2 are fixed between the two first clamping plates 3. A winding shaft 7 is rotatably fitted in the first clamping plate 3. A protection net 5 is installed between the two winding shafts 7. A rotating head 8 is rotatably fitted on the first clamping plate 3. The rotating head 8 corresponds to the winding shaft 7. A self-locking structure is installed between the rotating head 8 and the winding shaft 7.

[0024] In this embodiment, both ends of the first telescopic rod 1 are fixedly connected to the first clamping plate 3 and the second clamping plate 4 respectively. The first telescopic rod 1, the first clamping plate 3 and the second clamping plate 4 form a C-shaped structure.

[0025] Specifically, when the device needs to be installed, the first clamping plate 3 and the second clamping plate 4 are respectively placed on the inner and outer sides of the elevator wellhead, and then the lengths of the first telescopic rod 1 and the second telescopic rod 2 are fixed, and the device can be clamped and fixed in the elevator wellhead.

[0026] A groove 6 is opened in the first clamping plate 3. The winding shaft 7 is rotatably fitted in the groove 6. Both ends of the protection net 5 are wound around the circumferences of the two winding shafts 7 respectively.

[0027] Specifically, when adjusting the distance between the two first clamping plates 3, the protection net 5 can be relaxed or wound by rotating the winding shaft 7, so that the protection net 5 matches the width of the elevator wellhead, thereby ensuring the protection effect of the protection net 5.

[0028] The rotating head 8 is fixedly connected to the winding shaft 7. An internal hexagonal notch 9 is formed in the rotating head 8. The self-locking structure includes a clamping block 16. A pressing plate 10 is elastically fitted in the internal hexagonal notch 9. The pressing plate 10 is fixedly connected to the clamping block 16. A plurality of springs 11 are fixed between the pressing plate 10 and the bottom in the internal hexagonal notch 9. A connecting rod 12 is fixed between the pressing plate 10 and the clamping block 16. The connecting rod 12 is slidably connected to the winding shaft 7. A rotating groove 14 and a plurality of clamping grooves 13 are formed in the first clamping plate 3. The rotating groove 14 and the clamping grooves 13 correspond to the clamping block 16. The clamping grooves 13 are communicated with the rotating groove 14. A through groove 15 is formed in the winding shaft 7. The through groove 15 is communicated with the rotating groove 14 and the clamping grooves 13. The through groove 15 corresponds to the clamping block 16.

[0029] Specifically, when winding or unwinding the protective net 5, at this time, insert an internal hexagonal wrench into the internal hexagonal notch 9. The internal hexagonal wrench presses down the pressing plate 10, and the spring 11 is compressed. At this time, the pressing plate 10 presses down the clamping block 16 through the connecting rod 12, so that the clamping block 16 enters the rotating groove 14 from the clamping groove 13. Then, the rotating head 8 can be driven to rotate by the internal hexagonal wrench, thereby driving the winding shaft 7 to rotate, and then the protective net 5 can be wound or unwound, ensuring that the protective net 5 can adapt to elevator shaft openings of various specifications. Then, slowly pull out the internal hexagonal wrench from the internal hexagonal notch 9. At this time, the spring 11 rebounds and pushes the pressing plate 10 upward. The pressing plate 10 drives the clamping block 16 to slide upward. The clamping block 16 enters the clamping groove 13 from the rotating groove 14. The clamping groove 13 limits the clamping block 16, thereby preventing the winding shaft 7 from rotating, and then the protective net 5 can be fixed to ensure the protection effect.

[0030] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A shaft protection device for elevator engineering, comprising two first clamping plates (3) and two second clamping plates (4), characterized in that: A plurality of first telescopic rods (1) are arranged between the first clamping plate (3) and the second clamping plate (4), a plurality of second telescopic rods (2) are fixed between the two first clamping plates (3), a winding shaft (7) is rotatably matched inside the first clamping plate (3), a protective net (5) is arranged between the two winding shafts (7), a rotating head (8) is rotatably matched on the first clamping plate (3), the rotating head (8) corresponds to the winding shaft (7), and a self-locking structure is arranged between the rotating head (8) and the winding shaft (7).

2. The shaft protection device for elevator engineering according to claim 1 is characterized in that: The two ends of the first telescopic rod (1) are respectively fixedly connected to the first clamping plate (3) and the second clamping plate (4); the first telescopic rod (1), the first clamping plate (3) and the second clamping plate (4) form a C-shaped structure.

3. The shaft protection device for elevator engineering according to claim 1 is characterized in that: A groove (6) is provided in the first clamping plate (3), and a reel (7) is rotatably fitted in the groove (6). The two ends of the protective net (5) are respectively wound around the circumference of the two reel shafts (7).

4. The shaft protection device for elevator engineering according to claim 1, characterized in that: The rotating head (8) is fixedly connected to the winding shaft (7), and a hexagonal notch (9) is provided inside the rotating head (8).

5. The shaft protection device for elevator engineering according to claim 4, characterized in that: The self-locking structure comprises a clamping block (16), a pressing plate (10) is elastically fitted in the inner hexagonal notch (9), and the pressing plate (10) is fixedly connected to the clamping block (16).

6. The shaft protection device for elevator engineering according to claim 5, characterized in that: A plurality of springs (11) are fixed between the pressure plate (10) and the bottom of the hexagonal notch (9), a connecting rod (12) is fixed between the pressure plate (10) and the clamping block (16), and the connecting rod (12) is slidably connected to the winding shaft (7).

7. The shaft protection device for elevator engineering according to claim 5, characterized in that: A rotation groove (14) and a plurality of clamping grooves (13) are provided in the first clamping plate (3); the rotation groove (14) and the clamping grooves (13) both correspond to the clamping blocks (16); and the clamping grooves (13) are connected to the rotation grooves (14).

8. The shaft protection device for elevator engineering according to claim 7, characterized in that: A through slot (15) is provided in the reeling shaft (7), the through slot (15) is connected to the rotating slot (14) and the clamping slot (13), and the through slot (15) corresponds to the clamping block (16).

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