Vertical light-weight prefabricated assembly type fence for improvement of elevator hoistway

Abstract

The invention discloses a vertical light prefabricated assembly type fence for elevator shaft transformation, and relates to the technical field of elevator shaft transformation, the vertical light prefabricated assembly type fence comprises a fence body, the fence body is composed of four frame units, and each frame unit comprises a square pipe frame, square pipe inclined struts, rock wool filling blocks, steel sheets and waterproof cloth; the square tube inclined struts are fixedly connected to the interior of the square tube frame. Through modular prefabricated design, the splicing angle of the frame units can be flexibly adjusted by means of hinges, the fence can adapt to elevator hoistways with different contours such as rectangles and polygons, site cutting or secondary machining is not needed, the adaptability and the installation efficiency of the fence to different hoistway structures are greatly improved, meanwhile, a multi-dimensional waterproof system is constructed, and the construction cost is reduced. The inner side and the outer side of the hinge are wrapped with waterproof cloth, the splicing position of the vertical clamping grooves is additionally provided with protective cloth, the junction of the fence and the wall is filled with sealant, rainwater and condensate water are effectively prevented from permeating into the fence, elevator equipment in a hoistway is prevented from being damaged due to damp, and meanwhile disputes caused by the fact that the rainwater and the condensate water seep to the lower area are prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of elevator shaft reconstruction, in particular to a vertical light prefabricated assembly type fence for elevator shaft reconstruction. BACKGROUND

[0002] In the process of urban renewal building reconstruction, it is very common to add or replace vertical facilities such as sightseeing elevators, fire elevators, equipment pipe corridors, etc. However, elevator reconstruction is often synchronized with electromechanical, decoration, curtain wall, and structural reconstruction, making it difficult to install large vertical transportation equipment due to site limitations. The mainstream approach is to retain the original elevator until the later stage of the project to meet transportation needs. However, the original elevator faces the problem of new and old power system connection during use. More critically, curtain wall demolition and reconstruction will damage the enclosed environment of the shaft. After the shaft is exposed to the air, rainwater and condensate can easily soak the equipment, causing the elevator to stop operating. It may also leak into the lower business area, causing compensation. There is also the risk of high-altitude falling and object impact.

[0003] To address the problem of shaft protection, construction units have tried various temporary solutions, but all have defects: colored cloth + steel wire mesh is insufficient in wind pressure resistance and can easily tear in strong winds; steel pipe scaffolding with punched aluminum plates requires a large number of wall connecting pieces, which can easily cause secondary damage to old masonry and is difficult to seal at the joint; full-surface scaffolding with oil felt requires heavy weight, consumes a lot of material, and is limited in installation height. The oil felt joints are also prone to edge warping and leakage. More critically, sightseeing elevator reconstruction often uses a "use while construction" mode. The business district operates normally during the day, and construction is only carried out at night or in segments. Traditional protection solutions require the shaft to be "sealed" at once, which cannot quickly switch between "protection - opening" states, leading to longer construction periods and damage to business owner's profits. This further highlights the urgent need for new protection equipment. SUMMARY

[0004] Therefore, the present application aims to provide a vertical light prefabricated assembly type fence for elevator shaft reconstruction to solve the technical problems presented in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a vertical light prefabricated assembly type fence for elevator shaft reconstruction, comprising a fence composed of four groups of frame units.

[0006] The frame unit comprises a square tube frame, a square tube diagonal brace, a rock wool filling block, a steel sheet, and a waterproof cloth. The square tube diagonal brace is fixedly connected to the inside of the square tube frame. The rock wool filling block is filled in the space enclosed by the square tube frame and the square tube diagonal brace. The steel sheet covers the outside of the square tube frame. The waterproof cloth covers the outside of the steel sheet.

[0007] The size of the frame unit is uniformly set to a width of 900 mm and a height of 2400 mm. The square tube frame and the square tube diagonal brace are made of galvanized square tubes. The thickness of the steel sheet is 1.2 mm.

[0008] The four groups of frame units are connected by hinge rotation, and the inner side and the outer side of the hinge are wrapped with waterproof cloth, the hinge is made of galvanized steel, the rotation of the hinge can adjust the splicing angle of the four groups of frame units, so that the enclosure is suitable for rectangular, polygonal and other different contour elevator shafts;

[0009] It also includes a top groove steel;

[0010] The top groove steel is made of galvanized C-shaped steel, and the upper end of the top groove steel is open, the top groove steel is fixedly connected to the top of the square tube frame on the top of the frame unit, the square tube frame at the bottom of the previous group of frame units can be inserted into the opening of the top groove steel at the top of the next group of frame units, forming a vertical clamping groove connection structure, and a protective cloth is arranged outside the splicing part of the top groove steel and the square tube frame at the bottom of the previous group of frame units, covering the top and side of the splicing gap, and the edge of the protective cloth is fixedly connected with the waterproof cloth;

[0011] It also includes a side groove steel and a connecting hole;

[0012] The side groove steel is made of galvanized C-shaped steel, and the side end of the side groove steel is open, the side groove steel is fixedly connected to the outer side of the square tube frame on the side of the frame unit, and the connecting hole is arranged on the square tube frame and the side groove steel respectively, and the connecting holes on the square tube frame and the side groove steel of the same frame unit are coaxially aligned;

[0013] It also includes a fastening mechanism, the fastening mechanism includes a bolt head, a bolt arm, a screw rod and a bolt pin;

[0014] One end of the screw rod is threadedly connected with the bolt head, and the other end is fixedly connected with the bolt pin; the bolt arm is fixed on one side of the bolt head and is sleeved outside the screw rod, and the distal end of the bolt arm is provided with a protruding structure;

[0015] The fastening mechanism can be inserted into the coaxially aligned connecting holes from one side, when the screw rod is rotated to drive the bolt pin to move axially, the bolt arm can be unfolded to make the distal end protruding structure clamped on the side away from the bolt head, so that the frame unit is locked on one side;

[0016] The junction between the enclosure and the surrounding building wall of the elevator shaft is provided with a sealing adhesive layer, and the sealing adhesive layer is filled in the gap between the frame unit and the building wall;

[0017] The bottom of the enclosure is provided with a foundation anchor bolt, the foundation anchor bolt penetrates through the square tube frame at the bottom of the frame unit and is fixedly connected with the ground at the bottom of the elevator shaft, so that the bottom of the enclosure is fixed.

[0018] In summary, the present application mainly has the following advantages:

[0019] 1. This invention utilizes a modular prefabrication design, allowing the frame units to flexibly adjust their splicing angles via hinges. This enables it to adapt to elevator shafts with different contours, such as rectangles and polygons, without requiring on-site cutting or secondary processing. This significantly improves the adaptability of the enclosure to different shaft structures and enhances installation efficiency. Simultaneously, it constructs a multi-dimensional waterproof system, with waterproof fabric wrapped around the inner and outer sides of the hinges, protective fabric added at the vertical slot splicing points, and sealant filled at the junction of the enclosure and the wall. This effectively prevents rainwater and condensate from seeping into the enclosure, avoiding damage to the elevator equipment inside the shaft due to moisture, and also preventing leaks to the lower area that could lead to disputes.

[0020] 2. This invention employs a single-sided, quick-installation and quick-disassembly fastening mechanism and a vertical slot positioning structure, allowing a single person to complete unit assembly and locking. The installation and dismantling process does not interrupt the original elevator operation, perfectly adapting to the "operation while construction" renovation mode. This significantly shortens the construction cycle and reduces interference with surrounding commercial operations. All components are prefabricated, and the connection method is mainly mechanical assembly, without on-site welding or destructive fixing. After dismantling, the components can be recycled and reused without damage, which reduces construction costs and conforms to the concept of circular economy, combining economic efficiency and environmental protection.

[0021] 3. By setting square tube diagonal braces and rock wool filling blocks in the frame unit and covering the outer layer with steel sheets, this invention not only improves the overall structural stability of the enclosure and can resist the influence of external wind pressure, but also has a certain function of preventing falling objects and dust, providing a safe and protective environment for construction in the shaft and elevator operation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the enclosure of the present invention;

[0023] Figure 2 For the present invention Figure 1 Enlarged view of point A;

[0024] Figure 3 This is a schematic diagram of the internal structure of the enclosure of the present invention;

[0025] Figure 4 For the present invention Figure 3 Enlarged view of point B;

[0026] Figure 5 This is a top sectional view of the enclosure of the present invention;

[0027] Figure 6 For the present invention Figure 5 Enlarged view of point C;

[0028] Figure 7 This is an enlarged cross-sectional view of the fastening mechanism of the present invention in the connected and locked state.

[0029] Figure 8 This is a cross-sectional view of the fastening mechanism of the present invention in its unconnected state.

[0030] In the diagram: 1. Fence; 2. Frame unit; 201. Square tube frame; 202. Square tube diagonal brace; 203. Rock wool filling block; 204. Steel sheet; 3. Hinge; 4. Waterproof cloth; 5. Connecting hole; 6. Side channel steel; 7. Top channel steel; 8. Fastening mechanism; 801. Bolt head; 802. Bolt arm; 803. Screw; 804. Bolt pin. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0032] The embodiments of the present invention will now be described.

[0033] Example 1

[0034] like Figures 1-8 As shown, this embodiment takes the renovation project of office building sightseeing elevator shaft in the urban renewal scenario as the application object. The project needs to transform the original closed elevator shaft into a panoramic glass curtain wall sightseeing shaft. During the renovation, the original elevator needs to be retained to meet the vertical transportation needs. At the same time, it is necessary to solve the protection problem of the shaft being exposed to the air after the curtain wall is removed, and adapt to the operation mode of "normal operation of the business district during the day and segmented construction at night". The specific implementation of the present invention will be described in detail below with reference to the accompanying drawings.

[0035] Prefabricated component processing: The number of modular units of enclosure 1 is determined according to the outline of the elevator shaft. Each modular unit contains four sets of frame units 2. The frame units 2 are prefabricated according to uniform specifications. The interior is supported by a square tube frame 201. The square tube diagonal brace 202 is fixedly connected to the square tube frame 201 to form a stable structure. The space enclosed by the two is filled with rock wool filling blocks 203. The outside of the square tube frame 201 is covered with steel sheet 204. The outside of the steel sheet 204 is covered with waterproof cloth 4. The edge of the waterproof cloth 4 is fixedly sealed to the steel sheet 204.

[0036] Both the top channel steel 7 and the side channel steel 6 are made of galvanized C-shaped steel. The top channel steel 7 is open at the top and the side channel steel 6 is open at the side. Connecting holes 5 are evenly opened on the top and side, respectively, and are fixed to the outside of the square tube frame 201 at the top and side of the frame unit 2.

[0037] Connection holes 5 are also opened at the corresponding positions of the square tube frame 201 and the side channel steel 6 to ensure that the connection holes 5 on the same frame unit 2 are coaxially aligned. The fastening mechanism 8 consists of a bolt head 801, a bolt arm 802, a screw 803 and a bolt pin 804. One end of the screw 803 is threaded to the bolt head 801, and the other end is fixed to the bolt pin 804. The bolt arm 802 is sleeved on the outside of the screw 803 and has a protruding structure at the end.

[0038] Before construction, measure the outer dimensions of the elevator shaft to determine the installation position of the enclosure 1, and mark the plane positioning line along the outer perimeter of the shaft, while marking the installation points of the anchor bolts.

[0039] Example 2

[0040] Installation steps for fence 1:

[0041] First-layer frame unit 2 installation: hoist the four sets of frame units 2 of the first set of enclosure 1 to the installation position, and adjust the splicing angle of the four sets of frame units 2 through the hinge 3 to make them fit the contour of the shaft.

[0042] Adjust the position of frame unit 2 to align with the positioning line, drill holes at the anchor bolt holes of the bottom square tube frame 201, insert the anchor bolts and tighten the nuts to fix the bottom of frame unit 2;

[0043] Check the verticality of frame unit 2. If there is a deviation, correct it by adjusting the thickness of the anchor bolt gasket.

[0044] Vertical frame unit 2 splicing: hoist the next set of module units to the top of the installed module units, align the square tube frame 201 at the bottom of the new module unit with the opening of the top channel steel 7 at the top of the module unit below, and slowly lower it so that the square tube frame 201 is fully inserted into the top channel steel 7 to complete the vertical slot pre-positioning, and at the same time use the fastening mechanism 8 for connection.

[0045] A protective cloth is placed over the outside of the joint between the top channel steel 7 and the square tube frame 201. The edge of the protective cloth is fixed to the waterproof cloth 4 on the outside of the frame unit 2, covering the top and sides of the joint.

[0046] Repeat the above steps to install the module units layer by layer until the height of enclosure 1 reaches the top of the shaft.

[0047] Horizontal frame unit 2 connection and locking: For the side connection of adjacent frame units 2, align the side channel steel 6 with the square tube frame 201 of the adjacent frame unit 2 to ensure that the connection holes 5 on both sides are coaxially aligned.

[0048] Insert the bolt arm 802 and screw 803 of the fastening mechanism 8 into the aligned connection hole 5 in sequence from one side. After the bolt head 801 is in contact with the surface of the side channel steel 6, rotate the screw 803 to drive the bolt pin 804 to move axially, so that the bolt arm 802 unfolds. Its end protruding structure is locked into the inner wall of the square tube frame 201 on the other side of the connection hole 5 to achieve unilateral locking.

[0049] Boundary sealing treatment: At the junction of the enclosure 1 and the building wall, sealant is used to fill the gap. Before applying the sealant, the dust and debris in the gap are cleaned to ensure that the sealant is tightly adhered to the steel sheet 204 and the wall surface, and a continuous sealing layer is formed after curing.

[0050] Steps for removing fence 1:

[0051] Based on the curtain wall construction schedule, this project adopts a "layer-by-layer removal" approach. Once the curtain wall keel of a certain layer is installed, the corresponding layer's enclosure 1 will be removed. The specific steps are as follows:

[0052] Release the fastening mechanism 8 from the indoor side: The construction personnel operate from the indoor side, rotate the screw 803 of the fastening mechanism 8 in the opposite direction, drive the bolt pin 804 to move in the opposite direction, so that the bolt arm 802 returns to the retracted state, pull out the fastening mechanism 8 from one side, and release the lateral lock of the adjacent frame unit 2 and the connection lock between the upper and lower layers.

[0053] Dismantle the upper frame unit 2: Use hoisting equipment to hook the preset lifting point of the frame unit 2 to be dismantled, and slowly lift it upwards so that the square tube frame 201 at the bottom of the frame unit 2 is separated from the lower top channel steel 7 and transported to the designated area on the ground for stacking.

[0054] Cleaning of protective cloth and sealant: Remove the protective cloth at 7 points on the top channel steel. Undamaged protective cloth can be recycled. Use tools to clean the sealant residue at the junction of the enclosure 1 and the wall, and keep the wall surface clean.

[0055] Implementation Notes

[0056] Lifting safety: When lifting frame unit 2, double-point lifting is adopted to ensure a stable lifting process and avoid frame unit 2 from colliding with the building wall;

[0057] Waterproof component protection: During construction, avoid sharp objects from scratching the waterproof fabric 4 and the protective fabric. If any damage is found, repair it with waterproof tape in time.

[0058] Fastener storage: After fastening mechanism 8 is removed, it should be stored in a moisture-proof container in a classified manner to prevent the bolt arm 802 from rusting and affecting its use;

[0059] Verticality control: After every few layers of fencing 1 are installed, use a laser line projector to check the overall verticality of fencing 1 to ensure installation accuracy.

[0060] The working principle of this invention is as follows: This invention solves the problem of sealing and protection after the curtain wall is removed during elevator shaft renovation through a collaborative design of "modular unit integration + multi-dimensional waterproof sealing + quick installation and disassembly connection". The core working principle revolves around three dimensions: structural combination, waterproof sealing, and convenient disassembly and assembly, as detailed below:

[0061] This invention uses standardized prefabricated units as the core to build a fencing system. The dimensions of a single frame unit 2 are uniformly 900mm wide and 2400mm high. The frame unit 2 is mainly supported by a galvanized square tube frame 201, with galvanized square tube diagonal braces 202 to enhance stability. The interior is filled with rock wool filler blocks 203 to achieve basic protection. The outer layer is covered with 1.2mm thick steel sheets 204 and waterproof cloth 4 to form a composite protective surface.

[0062] To adapt to elevator shafts of different perimeters and shapes, every four frame units 2 are connected by hinges 3 to form a foldable module. The hinges 3 can rotate freely to adjust the angle, allowing the enclosure 1 to be flexibly folded and spliced ​​according to the shaft outline (such as rectangles or polygons). No on-site cutting or secondary processing is required. During construction, only the corresponding number of module groups need to be selected according to the shaft size. The rotation characteristics of the hinges 3 enable "ready to assemble and use", quickly forming a closed enclosure structure that perfectly matches the shaft outline, adapting to the protection needs of various vertical shafts.

[0063] Addressing the core pain point of rainwater and condensation seepage after the well shaft is exposed to air, this invention adopts a dual protection design of "node waterproofing + full-area sealing," constructing a leak-proof protection system from both horizontal and vertical dimensions:

[0064] Waterproofing of horizontal hinges 3: A layer of waterproof cloth 4 is wrapped on the inner and outer sides of the hinges 3 between frame units 2. The waterproof cloth 4 deforms synchronously with the rotation of the hinges 3, which does not affect the folding and splicing between frame units 2, and can completely cover the gaps of the hinges 3, preventing rainwater from seeping in from the horizontal joint. Specifically, the four sets of frame units 2 are fixed with an integral waterproof cloth 4 on the outside of the steel sheet 204, which can effectively waterproof the hinges 3.

[0065] Vertical slot waterproofing: The top channel steel 7 made of galvanized C-shaped steel is used to form a slot structure for the upper and lower connection of frame unit 2. The bottom square tube frame 201 of the upper frame unit 2 can be completely inserted into the top channel steel 7 of the lower frame unit 2. At the same time, a protective cloth is added to the outside of the splicing connection. The protective cloth covers the top and sides of the splicing connection gap, forming a double protection of "groove interception + protective cloth sealing". After on-site water spray test, this structure can meet the waterproof requirements of typhoon areas and prevent rainwater from seeping into the enclosure along the vertical joint.

[0066] Additional boundary sealing: The junction of the enclosure 1 and the building wall is sealed with sealant to further seal the gaps at the fixed end, forming a full-area protection of "waterproof unit joint + boundary sealing" to ensure that the shaft is in a closed environment that is rainproof, dustproof and smokeproof;

[0067] To adapt to the "use while construction" renovation scenario, this invention designs a quick-installation and quick-disassembly connection structure with single-sided operation. The core lies in the coordinated work of the slot positioning and the fastening mechanism 8:

[0068] Card slot pre-positioning: When splicing frame unit 2 from top to bottom, the bottom square tube frame 201 of the upper frame unit 2 is directly inserted into the top channel steel 7 of the lower frame unit 2. The groove structure of the card slot can realize the quick alignment and positioning of the unit without additional position adjustment. One person can complete the initial splicing.

[0069] Single-sided fastener locking: Each frame unit 2 is pre-set with a connection hole 5, and the corresponding position on the side channel steel 6 is also provided with a connection hole 5 of the same specification. When the frame unit 2 is positioned by the side channel steel 6, the fastening mechanism 8 is inserted into the aligned connection hole 5. After the bolt pin 804 of the fastening mechanism 8 moves axially, the bolt arm 802 can be opened by the inner support so that its end protruding structure can be locked on the other side of the connection hole 5. The bolt pin 804 is driven by the screw 803, and the screw 803 and the bolt head 801 are connected by threads.

[0070] Non-destructive dismantling and reuse: During dismantling, only the fastening mechanism 8 needs to be reversed to release the lock between multiple sets of fences 1, and the multiple sets of fences 1 can be removed one by one. Since all connections are mechanical splicing, there is no on-site welding or destructive fixing, and they can be completely recycled without damage. The reuse rate is ≥95%, which is in line with the concept of circular economy.

[0071] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A vertical light-weight prefabricated assembly enclosure for elevator shaft modernization, comprising an enclosure (1), characterized in that: The fence (1) is composed of four groups of frame units (2); The frame unit (2) comprises a square tube frame (201), a square tube diagonal brace (202), a rock wool filling block (203), a steel sheet (204) and a waterproof cloth (4), the square tube diagonal brace (202) is fixedly connected inside the square tube frame (201), the rock wool filling block (203) is filled in the space enclosed by the square tube frame (201) and the square tube diagonal brace (202), the steel sheet (204) is covered outside the square tube frame (201), and the waterproof cloth (4) is covered outside the steel sheet (204). The four groups of frame units (2) are rotationally connected through hinges (3), and the inner side and the outer side of the hinge (3) are wrapped by the waterproof cloth (4).

2. The vertical light-weight prefabricated enclosure for elevator shaft modernization according to claim 1, characterized in that: The size of the frame unit (2) is uniformly set as a width of 900 mm and a height of 2400 mm; the square tube frame (201) and the square tube diagonal brace (202) are made of galvanized square tubes, and the thickness of the steel sheet (204) is 1.2 mm.

3. The vertical light-weight prefabricated enclosure for elevator shaft modernization according to claim 1, characterized in that: It also includes a top groove steel (7); The top groove steel (7) is made of galvanized C-shaped steel, and the upper end of the top groove steel (7) is open, the top groove steel (7) is fixedly connected to the top of the square tube frame (201) at the top of the frame unit (2), the square tube frame (201) at the bottom of the previous group of frame units (2) can be adaptively inserted into the opening of the top groove steel (7) at the top of the next group of frame units (2), forming a vertical clamping groove connection structure.

4. The vertical light-weight prefabricated enclosure for elevator shaft modernization according to claim 3, characterized in that: The outside of the joint between the top groove steel (7) and the square tube frame (201) at the bottom of the previous group of frame units (2) is provided with a protective cloth, the protective cloth covers the top and side of the joint gap, and the edge of the protective cloth is fixedly connected with the waterproof cloth (4).

5. The vertical light-weight prefabricated enclosure for elevator shaft modernization according to claim 1, characterized in that: It also includes a side groove steel (6) and a connecting hole (5); The side groove steel (6) is made of galvanized C-shaped steel, and the side end of the side groove steel (6) is open, the side groove steel (6) is fixedly connected to the outside of the square tube frame (201) on the side of the frame unit (2), the connecting hole (5) is respectively provided on the square tube frame (201) and the side groove steel (6), and the connecting holes (5) on the square tube frame (201) and the side groove steel (6) of the same frame unit (2) are coaxially aligned.

6. The vertical light-weight prefabricated enclosure for elevator shaft modernization according to claim 5, characterized in that: It also includes a fastening mechanism (8), the fastening mechanism (8) includes a bolt head (801), a bolt arm (802), a screw rod (803) and a bolt pin (804); One end of the screw rod (803) is threadedly connected with the bolt head (801), the other end is fixedly connected with the bolt pin (804); the bolt arm (802) is fixed on one side of the bolt head (801) and is sleeved outside the screw rod (803), and the end segment of the bolt arm (802) is provided with a protruding structure; The fastening mechanism (8) can be inserted into the coaxially aligned connecting holes (5) from one side, when the screw rod (803) is rotated to drive the bolt pin (804) to move axially, the bolt arm (802) can be unfolded to make the end segment protruding structure clamped on the side away from the bolt head (801) of the connecting hole (5), so as to realize the unilateral locking of the frame unit (2).

7. The vertical light-weight prefabricated enclosure for elevator shaft modernization according to claim 1, characterized in that: The sealing rubber layer is arranged at the joint of the enclosure (1) and the building wall of the elevator shaft, and fills the gap between the frame unit (2) and the building wall.

8. The vertical light-weight prefabricated enclosure for elevator shaft modernization according to claim 1, characterized in that: The hinge (3) is made of galvanized steel material, and the assembly angle of the four frame units (2) can be adjusted through the rotation of the hinge (3), so that the enclosure (1) is adapted to the elevator shaft with different profiles such as rectangle and polygon.

9. The vertical light-weight prefabricated enclosure for elevator shaft modernization according to claim 1, characterized in that: The bottom of the enclosure (1) is provided with a ground anchor bolt which penetrates through the square tube frame (201) at the bottom of the frame unit (2) and is fixedly connected with the ground at the bottom of the elevator shaft, thereby realizing the fixation of the bottom of the enclosure (1).

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