Rail laying structure for shaft construction safety protection system

Abstract

The utility model discloses a guide rail paving structure for vertical shaft construction safety protection system, including vertical shaft, the vertical shaft wall is installed with the guide section of array along the height direction, each guide section outside is equipped with the rack, and the inboard is connected with the anchoring spare, and the anchoring spare is embedded in the vertical shaft wall, and the fixed abutment of the insertion structure is fixed between the end of any two adjacent guide sections, to make the rack on each guide section form the continuous meshing surface, the vertical shaft top is fixed with the support assembly, and the support assembly is used for installing the winch, and the support assembly is fixedly installed with the reference board, and the reference board one end extends to the vertical shaft wellhead edge position, among each guide section, the top of the guide section top end and reference board fixed connection. The utility model has the beneficial effect that can guarantee the installation quality and precision of guide rail.

Description

Technical Field

[0001] This utility model relates to the field of construction safety technology, specifically to a guide rail paving structure for a vertical shaft construction safety protection system. Background Technology

[0002] Shaft construction is a core and crucial link in fields such as mining, tunnel engineering, and urban underground utility tunnel construction, and its construction quality and efficiency directly affect the overall project progress. However, the shaft working environment is inherently high-risk. The enclosed and narrow working space leads to limited ventilation and evacuation conditions, and the complex and changeable geological environment is prone to geological disasters such as collapse, water inrush, and rockfall. Traditional protection methods mostly rely on manual monitoring and scattered protective measures, which generally suffer from delayed early warning and insufficient protective coverage. As a result, the accident rate in shaft construction has remained high for a long time, and a systematic safety protection solution is urgently needed to break through this predicament.

[0003] To this end, the applicant intends to develop a safety protection system for shaft construction. This system is equipped with a safety disc that can be raised and lowered vertically inside the shaft. The safety disc forms a rigid protective barrier, which effectively blocks the impact of falling objects from above on the workers and equipment below, thus providing a basic guarantee for construction safety. To achieve smooth lifting and emergency protection of the safety disc, the system features a rotating gear mounted on the safety disc, along with a guide rail laid vertically along the shaft wall. A rack, either integrally formed or fixedly connected to the front of the guide rail, meshes with the gear. The safety disc is also equipped with a locking component. Under normal operating conditions, the locking component does not lock, allowing the gear to rotate freely relative to the safety disc. A winch can be used to drive the safety disc to rise and fall stably along the guide rail, meeting protection requirements at different construction depths. However, in the event of an accident such as a broken steel cable, the safety disc may fall rapidly, causing the gear speed to exceed a preset threshold. In this case, the locking component will quickly activate, creating a fixed lock between the gear and the safety disc. The gear will then stop rotating and be locked to the guide rail through meshing with the rack, thus securing the safety disc in its current position and preventing further descent, completely severing the accident chain.

[0004] However, during actual construction, as workers continue to excavate downwards, the safety disc needs to move downwards synchronously to adapt to the construction depth. This requires the guide rails to be continuously spliced ​​and laid along the vertical shaft height as the excavation progresses. The installation quality of the guide rails directly determines the reliability of the entire safety protection system. On the one hand, it is necessary to strictly ensure that the spliced ​​guide rails always maintain a vertical posture. If tilting or deviation occurs, it will cause poor meshing between the gears and racks, which will not only affect the smoothness of the safety disc's lifting and lowering but may even cause malfunctions such as jamming or sticking. On the other hand, the racks on the front side of the guide rails must form a continuous and complete meshing surface to avoid gear transmission interruption due to splicing gaps or tooth misalignment. Especially in emergency locking scenarios, the continuity and meshing accuracy of the racks are directly related to whether the locking components can respond quickly and form a reliable lock. Once there is a splicing defect in the racks, it may lead to locking failure and failure to prevent the safety disc from falling.

[0005] Therefore, under these circumstances, how to accurately lay the guide rails section by section downwards on the shaft wall has become a technical obstacle that urgently needs to be overcome in the research and development and application of the vertical shaft construction safety protection system. Utility Model Content

[0006] In view of this, the present invention provides a guide rail paving structure for a safety protection system for vertical shaft construction, which can ensure the installation quality and accuracy of the guide rail.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] A guide rail paving structure for a safety protection system in shaft construction is characterized by comprising a shaft, wherein guide sections arranged in an array along the height direction are installed on the shaft wall, each guide section is provided with a rack on its outer side and an anchor connected to its inner side, the anchor is embedded in the shaft wall, and any two adjacent guide sections are fixedly abutted together by a plug-in structure so that the racks on each guide section form a continuous meshing surface.

[0009] A support assembly is fixedly installed at the top of the shaft. The support assembly is used to install a winch. A reference plate is fixedly installed on the support assembly. One end of the reference plate extends to the edge of the shaft opening. Among the guide sections, the top of the topmost guide section is fixedly connected to the reference plate.

[0010] With the above structure, the reference plate can provide a good installation foundation for the guide sections that are assembled downwards in stages. The guide rail is installed in sections, which meets the construction requirements of vertical shaft excavation. Adjacent guide sections are fixedly connected by a plug-in structure, which not only achieves flexible assembly, but also ensures that the rack forms a continuous meshing surface, providing a reliable guarantee for the smooth lifting and lowering of the protective disc.

[0011] Preferably, the bracket assembly is fixed to the ground using concrete or expansion bolts, and the reference plate is welded to the bracket assembly. This structure further enhances the connection strength and overall structural integrity, thereby providing a precise and stable installation reference for the topmost guide section.

[0012] Preferably, the guide section has an upper insertion groove and a lower insertion block that matches the insertion groove. The insertion groove and the insertion block constitute the insertion structure. The insertion groove has external through holes on both sides, and the insertion block has an internal through hole. After the insertion block is inserted into the insertion groove, the external through holes and the internal through holes are coaxially aligned and fixed by bolts. This structure ensures the straightness of the guide section after insertion and guarantees that the racks on each guide section always form a continuous meshing surface.

[0013] Preferably, the reference plate has the plug-in block at its end.

[0014] Preferably, the insertion slot is a rectangular slot, and the insertion block is a rectangular block. This structure effectively limits the radial offset between adjacent guide sections, ensuring that the spliced ​​guide sections always maintain their vertical orientation along the shaft.

[0015] Preferably, the insertion slot has a limiting block protruding from the slot wall, and the insertion block has a limiting groove that corresponds to the limiting block. This structure creates a dual positioning structure, simultaneously restricting the horizontal radial and circumferential movement of the insertion components, further improving the accuracy and stability of the guide rail installation.

[0016] Preferably, the guide section has an elongated support strip on its inner side, with connecting holes distributed on the support strip. The anchor is provided with a connecting piece, which is fixed to the connecting hole by a threaded fastener. With this structure, the support strip increases the contact area between the guide section and the anchor, improves the balance of force transmission, and enhances the reliability of the guide section's embedment into the well wall.

[0017] Preferably, the support bar is at least partially pressed into the well wall. This structure improves the connection strength and stability between the guide section and the well wall.

[0018] Preferably, each guide segment is equipped with three anchors, which are equidistantly distributed along the vertical direction of the guide segment. This structure further optimizes the load-bearing capacity and installation stability of the guide segment.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. The guide rail paving structure provided by this utility model provides a good installation foundation for the guide section to be assembled downwards in stages. The guide rail is installed in sections, which meets the construction requirements of vertical shaft excavation. Adjacent guide sections are fixedly connected by a plug-in structure, which not only realizes flexible assembly, but also ensures that the rack forms a continuous meshing surface, providing a reliable guarantee for the smooth lifting and lowering of the protective disc.

[0021] 2. The guide rail paving structure provided by this utility model not only improves the installation efficiency and accuracy of the guide section, but also significantly enhances the safety and reliability of shaft construction through the synergistic effect of the guide section and the safety protection system, reducing the risk of personnel injury and equipment damage. At the same time, the modular guide section design facilitates production and assembly, adapts to the construction needs of shafts of different depths, and improves the practicality and economy of the structure. Attached Figure Description

[0022] Figure 1 A cross-sectional view of the guide rail paving structure;

[0023] Figure 2 A schematic diagram of the structure for connecting the guide section 1a to the anchor 3;

[0024] Figure 3 This is a schematic diagram of the structure of guide segment 1a;

[0025] Figure 4 This is a schematic diagram illustrating the insertion structure between two adjacent guide segments 1a;

[0026] Figure 5 This is an exploded view of guide segment 1a and anchor 3;

[0027] Figure 6 This is a schematic diagram illustrating the insertion structure between guide section 1a and reference plate 2;

[0028] Figure 7 This is a structural schematic diagram of a safety protection system for shaft construction.

[0029] Figure 8 This is a cross-sectional view of the safety protection system for shaft construction. Detailed Implementation

[0030] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0031] like Figure 8 As shown, a safety protection system for shaft construction includes a shaft A, a protective disc 6 inside the shaft A, a support assembly A1 fixed to the top of the shaft A, a winch A2 mounted on the support assembly A1, and a steel cable on the winch A2 connected to the protective disc 6. When the winch A2 operates, it can pull the protective disc 6 to move up and down. Combined with... Figure 1As shown, a gear 61 is rotatably mounted at each of the left and right ends of the protective disc 6. A guide rail 1 is installed on each of the left and right walls of the shaft A, and a rack 11 is provided on one side of each guide rail 1. The two gears 61 mesh with the two racks 11 respectively. When the winch A2 operates, it drives the gears 61 to rotate relative to the racks 11, thereby pulling the protective disc 6 up and down. The engagement of the gears 61 and racks 11 ensures that the protective disc 6 always moves smoothly along the vertical direction of the shaft, avoiding any impact on the protective effect due to swaying or collision with the inner wall of the shaft.

[0032] Next, the paving structure of one of the guide rails 1 will be described in detail.

[0033] like Figure 1 and Figure 2 As shown, a guide rail paving structure for a safety protection system in vertical shaft construction includes guide sections 1a arrayed and installed on the shaft wall along the height direction of vertical shaft A. Each guide section 1a has a rack 11 on its outer side, and an anchor 3 is connected to the inner side of each guide section 1a, embedded in the shaft wall of vertical shaft A. The ends of any two adjacent guide sections 1a are fixedly abutted together by a plug-in structure, so that the racks 11 on each guide section 1a form a continuous meshing surface. A reference plate 2 is fixedly installed on the support assembly A1, for reference... Figure 7 and 8 One end of the reference plate 2 extends to the edge of the shaft A opening. Among the various guide sections 1a, the top of the top guide section 1a is fixedly connected to the reference plate 2.

[0034] Based on the above structural design, the reference plate 2 can provide a good installation foundation for the guide section 1a that is assembled downwards in stages. The guide rail is installed in stages, which meets the construction requirements of vertical shaft excavation. Adjacent guide sections 1a are fixedly connected by a plug-in structure, which not only realizes flexible assembly, but also ensures that the rack 11 forms a continuous meshing surface, providing a reliable guarantee for the smooth lifting and lowering of the protective disc.

[0035] In this embodiment, the bracket assembly A1 is fixed to the ground by concrete or expansion bolts, which can form a reliable connection with the ground. The reference plate 2 is welded to the bracket assembly A1 and fixed to the bracket assembly A1 by welding, which further improves the connection strength and structural integrity, thereby providing a precise and stable installation reference for the topmost guide section 1a.

[0036] Furthermore, such as Figure 3 and Figure 4As shown, the upper end of the guide section 1a is provided with a insertion groove 13, and the lower end is provided with an insertion block 14 that matches the insertion groove 13. The insertion groove 13 and the insertion block 14 constitute an insertion structure. The insertion groove 13 has external through holes 132 on both sides, and the insertion block 14 has an internal through hole 142. After the insertion block 14 is inserted into the insertion groove 13, the external through hole 132 and the internal through hole 142 are coaxially aligned and fixed by bolts. This design ensures the straightness of the guide section 1a after insertion and ensures that the racks 11 on each guide section 1a always form a continuous meshing surface.

[0037] Similarly, refer to Figure 6 The end of the reference plate 2 is also provided with a plug block 14 that matches the plug slot 13. The plug-in fixing structure and principle between the guide section 1a and the reference plate 2 and between two adjacent guide sections 1a are the same, and will not be described in detail here.

[0038] In this embodiment, the insertion slot 13 is a rectangular slot, and the insertion block 14 is a rectangular block. Setting the two interlocking parts as rectangular structures can effectively limit the radial offset between two adjacent guide segments 1a, ensuring that the spliced ​​guide segment 1a always maintains its posture along the vertical direction of the shaft.

[0039] like Figure 4 As shown, the insertion slot 13 has a limiting block 131 protruding from the slot wall, and the insertion block 14 has a limiting groove 141 that corresponds to the limiting block 131. In this embodiment, the insertion slot 13 has two limiting blocks 131 symmetrically arranged on its wall, and correspondingly, the insertion block 14 also has two limiting grooves 141. This design forms a dual positioning structure, which simultaneously restricts the horizontal radial movement and circumferential movement of the insertion component, further improving the accuracy and stability of the guide rail installation.

[0040] Please refer to Figure 2 and 3 The inner side of the guide section 1a has a long strip-shaped support bar 12, on which connecting holes 121 are distributed, for connection. Figure 5 As shown, the anchor 3 is provided with a connecting piece 32, which is fixed to the connecting hole 121 by a threaded fastener 4. The support bar 12 can increase the contact area between the guide section 1a and the anchor 3, improve the balance of force transmission, and strengthen the embedment reliability of the guide section 1a and the well wall.

[0041] To enhance the connection strength and stability between the guide section 1a and the well wall, in this embodiment, the support bar 12 is at least partially pressed into the well wall, further ensuring the vertical installation posture of the guide section 1a.

[0042] Depend on Figure 2As can be seen, in this embodiment, each guide segment 1a is equipped with three anchors 3, which are equidistantly distributed along the vertical direction of the guide segment 1a. This arrangement further optimizes the load-bearing capacity and installation stability of the guide segment 1a.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of the present utility model. Those skilled in the art, under the guidance of the present utility model, can make various similar representations without departing from the spirit and claims of the present utility model, and such modifications all fall within the protection scope of the present utility model.

Claims

1. A guide rail paving structure for a safety protection system in vertical shaft construction, characterized in that, The system includes a vertical shaft (A), on which guide sections (1a) are arranged in an array along the height direction. Each guide section (1a) has a rack (11) on its outer side and an anchor (3) connected to its inner side. The anchor (3) is embedded in the wall of the vertical shaft (A). The ends of any two adjacent guide sections (1a) are fixedly connected by a plug-in structure so that the racks (11) on each guide section (1a) form a continuous meshing surface. A support assembly (A1) is fixedly installed at the top of the shaft (A). The support assembly (A1) is used to install a winch. A reference plate (2) is fixedly installed on the support assembly (A1). One end of the reference plate (2) extends to the edge of the shaft opening (A). Among the guide sections (1a), the top of the guide section (1a) is fixedly connected to the reference plate (2).

2. The guide rail paving structure for a vertical shaft construction safety protection system according to claim 1, characterized in that: The bracket assembly (A1) is fixed to the ground by concrete or expansion bolts, and the reference plate (2) is welded to the bracket assembly (A1).

3. The guide rail paving structure for a vertical shaft construction safety protection system according to claim 1, characterized in that: The guide section (1a) has an insertion groove (13) at its upper end and an insertion block (14) at its lower end that matches the insertion groove (13). The insertion groove (13) and the insertion block (14) constitute the insertion structure. The insertion groove (13) has external through holes (132) on both sides. The insertion block (14) has an internal through hole (142). After the insertion block (14) is inserted into the insertion groove (13), the external through hole (132) and the internal through hole (142) are coaxially aligned and fixed by bolts.

4. The guide rail paving structure for a vertical shaft construction safety protection system according to claim 3, characterized in that: The reference plate (2) is provided with the plug-in block (14) at its end.

5. The guide rail paving structure for a vertical shaft construction safety protection system according to claim 3, characterized in that: The insertion slot (13) is a rectangular slot, and the insertion block (14) is a rectangular block.

6. The guide rail paving structure for a vertical shaft construction safety protection system according to claim 5, characterized in that: The insertion slot (13) has a limiting block (131) protruding from the slot wall, and the insertion block (14) has a limiting slot (141) adapted to the limiting block (131).

7. The guide rail paving structure for a vertical shaft construction safety protection system according to claim 1, characterized in that: The inner side of the guide section (1a) has a long strip-shaped support bar (12), and the support bar (12) has connecting holes (121) distributed on it. The anchor (3) is provided with a connecting piece (32), and the connecting piece (32) is fixed to the connecting hole (121) by a threaded fastener (4).

8. The guide rail paving structure for a vertical shaft construction safety protection system according to claim 7, characterized in that: The support bar (12) is at least partially pressed into the well wall.

9. The guide rail paving structure for a vertical shaft construction safety protection system according to claim 7, characterized in that: One of the guide segments (1a) is equipped with three anchors (3), which are equidistantly distributed along the vertical direction of the guide segment (1a).

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