A prefabricated and assembled sunken foundation for an externally added building elevator

Abstract

The present invention discloses an externally added prefabricated and assembled sinking foundation for a building elevator, belonging to the technical field of building foundations. It includes a precast cement layer, and a plurality of cement frames are arranged outside the precast cement layer. The cement frames are installed and fixed to the precast cement layer, and a storage cavity is formed between the inner wall of the cement frame and the outer wall of the precast cement layer. Compressed soil is contained inside the storage cavity, and an extrusion assembly for extruding the soil is arranged inside the storage cavity. The extrusion assembly includes a counterweight block, which is slidably installed inside the storage cavity. A plurality of first discharge ports are opened on the outer wall of the cement frame, and a plurality of transition grooves are opened inside the lower side of the precast cement layer. By means of the counterweight blocks and a plurality of storage cavities provided in the present invention, while the soil can be stored, the soil in the storage cavity can be pushed to the surrounding area after the soil around the building has eroded, thereby avoiding the situation of vacancies around, increasing the service life and safety of the building, and preventing the building from tilting or collapsing due to soil erosion.

Description

Technical Field

[0001] The present invention relates to the technical field of building foundations, and more specifically, to a prefabricated and assembled sinking foundation for an external building elevator. Background Art

[0002] The prefabricated and assembled sinking foundation for an external building elevator is a new construction method aimed at improving construction efficiency and foundation quality. The sinking foundation refers to a foundation set below the ground, usually used to enhance the stability of a building and is suitable for applications such as underground elevators.

[0003] Among them, after the sinking part of the elevator has been used for a long time, due to the flow of surrounding moisture, soil erosion occurs, and the soil supporting the concrete precast block part is lost, resulting in a hollow shape around the building. After long-term use, the building may tilt or collapse. During the use of traditional prefabricated and assembled sinking foundations, they cannot automatically supplement soil around the building after soil loss to support the building and increase the lifespan and safety of the building. Summary of the Invention

[0004] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a prefabricated and assembled sinking foundation for an external building elevator.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A prefabricated and assembled sinking foundation for an external building elevator, including a precast cement layer. A plurality of cement frames are provided outside the precast cement layer. The cement frames are installed and fixed to the precast cement layer. A storage cavity is formed between the inner wall of the cement frame and the outer wall of the precast cement layer, and compressed soil is contained inside the storage cavity;

[0007] An extrusion assembly for extruding the soil is provided inside the storage cavity. The extrusion assembly includes a counterweight block that is slidably installed inside the storage cavity;

[0008] A plurality of first discharge ports are opened on the outer wall of the cement frame. The inside of the storage cavity is communicated with the outside of the cement frame through the first discharge ports. A plurality of transition grooves are opened inside the lower side of the precast cement layer. The transition grooves are communicated with the inside of the storage cavity. A second discharge port is opened at the lower end of the transition groove. The transition groove is communicated with the outside of the lower side of the precast cement layer through the second discharge port. The transition groove is communicated with the inside of the storage cavity.

[0009] Further, the extrusion assembly further includes a vibration motor for driving the counterweight block to vibrate. The vibration motor is fixedly installed at the upper end of the counterweight block.

[0010] Further, a wire winding wheel is rotatably connected to the upper end inside the storage cavity. A servo motor is provided on one side of the wire winding wheel. The output end of the servo motor is fixedly connected to the central axis of the wire winding wheel. The servo motor drives the wire winding wheel to rotate. A pulling rope is wound around the outer wall of the wire winding wheel. The other end of the pulling rope is fixedly connected to the upper end of the counterweight.

[0011] Further, a plurality of compression springs are fixedly installed at the upper end of the counterweight. The upper ends of the compression springs are pressed against the inner wall of the storage cavity, and the ends of the compression springs close to the counterweight press against the counterweight.

[0012] Further, a plurality of electronic tape measures are embedded in the outer wall of the precast cement layer. The number of the electronic tape measures is the same as the number of the cement frames, and each electronic tape measure corresponds to one of the cement frames. One end of the electronic tape measure is fixedly connected to the upper end of the counterweight.

[0013] Further, a guide wheel is rotatably connected to the position of the precast cement layer corresponding to the electronic tape measure through a rotating frame. The outer wall of the guide wheel is in frictional contact with the outer wall of the electronic tape measure.

[0014] Further, feeding ports are opened at the positions of the inner wall of the precast cement layer opposite to the storage cavity, and one-way valves are installed inside the feeding ports.

[0015] Further, two switches are fixedly installed on the inner wall of the precast cement layer. One switch controls the forward and reverse rotation of the servo motor, and the other switch controls the start and stop of the vibration motor.

[0016] Further, a data processing module, a control module and a calculation module are installed on the inner wall of the precast cement layer. An alarm is also installed on the inner wall of the precast cement layer. The electronic tape measure transmits the elongation data to the data processing module. The data processing module analyzes the data collected by the electronic tape measure. When the elongation length data of the electronic tape measure is transmitted to the control module, a decision tree model is trained through the data of the electronic tape measure. When the elongation length of the electronic tape measure reaches a certain length, the control module controls the alarm to give an alarm. A display screen is installed inside the precast cement layer. The elongation data of the electronic tape measure is transmitted to the display screen and displayed by the display screen.

[0017] Further, the calculation module calculates the volume of soil that needs to be replenished into the storage cavity according to the volume of soil discharged from the storage cavity through the following formula:

[0018] ;

[0019] where V is the volume of soil to be replenished, N is the area at the lower end of the counterweight, ρ1 is the density of the soil compacted in the storage cavity, ρ0 is the density of the loose soil, and L is the distance that the counterweight descends;

[0020] The calculation module calculates the total amount of soil lost around the precast cement layer according to the following formula:

[0021] ;

[0022] where V 总 is the total amount of soil lost around the precast cement layer, and V i is the amount of soil lost in one of the storage bins. The calculation module transmits the calculated total amount of soil to be replenished and the amount data to be replenished in each storage cavity to the display screen for display.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] By providing the counterweight and multiple storage cavities, the present invention can store soil and push the soil in the storage cavities to the surrounding area after the soil around the building is lost, thereby avoiding the occurrence of vacancies around, increasing the service life and safety of the building, and preventing the building from tilting or collapsing due to soil loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 is a schematic diagram of the internal structure of the cement frame of the present invention;

[0027] Figure 3 is the Figure 2 enlarged schematic diagram of the structure at A in the present invention;

[0028] Figure 4 is a schematic diagram of the guide wheel part of the present invention;

[0029] Figure 5 is a schematic diagram of the structure of the vibration motor part of the present invention;

[0030] Figure 6 is a schematic diagram of the framework of the electronic tape measure, data processing module, control module, alarm, calculation module and display screen parts of the present invention;

[0031] Figure 7 is a schematic diagram of the working process of the present invention.

[0032] Description of the reference numerals in the drawings:

[0033] 1. Precast cement layer; 101. Transition groove; 102. Second discharge port; 103. Electronic tape measure; 104. Guide wheel; 105. Feed port; 106. Switch; 107. Data processing module; 108. Control module; 109. Calculation module; 110. Alarm; 111. Display screen;

[0034] 2. Cement frame; 201. Storage cavity; 202. First discharge port; 203. Wire winding wheel; 204. Servo motor; 205. Pulling rope

[0035] 3. Extrusion assembly; 301. Counterweight; 302. Vibration motor; 303. Extrusion spring Specific embodiments

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Please refer to Figures 1 to 7 A prefabricated and assembled sinking foundation for an external construction elevator includes a precast cement layer 1. A plurality of cement frames 2 are provided outside the precast cement layer 1. The cement frames 2 are installed and fixed to the precast cement layer 1. A storage cavity 201 is formed between the inner wall of the cement frame 2 and the outer wall of the precast cement layer 1. Compressed soil is contained inside the storage cavity 201.

[0038] An extrusion assembly 3 for extruding the soil is provided inside the storage cavity 201. The extrusion assembly 3 includes a counterweight 301 which is slidably installed inside the storage cavity 201.

[0039] A plurality of first discharge ports 202 are formed on the outer wall of the cement frame 2. The inside of the storage cavity 201 communicates with the outside of the cement frame 2 through the first discharge ports 202. A plurality of transition grooves 101 are formed inside the lower side of the precast cement layer 1. The transition grooves 101 communicate with the inside of the storage cavity 201. A second discharge port 102 is formed at the lower end of the transition groove 101. The transition groove 101 communicates with the outside of the lower side of the precast cement layer 1 through the second discharge port 102. The transition groove 101 communicates with the inside of the storage cavity 201.

[0040] The extrusion assembly 3 further includes a vibration motor 302 for driving the counterweight 301 to vibrate. The vibration motor 302 is fixedly installed at the upper end of the counterweight 301.

[0041] By adopting the above technical solutions, after the soil around the precast cement layer 1 is lost, the vibration motor 302 can drive the counterweight 301 to vibrate continuously after working, so as to extrude the soil inside the storage cavity 201. At this time, the soil in the storage cavity 201 can enter the transition groove 101, and the soil will flow out from the storage cavity 201 and the transition groove 101 through the first discharge port 202 and the second discharge port 102, so as to supplement the lost soil around.

[0042] At the upper end inside the storage cavity 201, a wire winding wheel 203 is rotatably connected. On one side of the wire winding wheel 203, there is a servo motor 204. The output end of the servo motor 204 is fixedly connected to the central axis of the wire winding wheel 203. The servo motor 204 drives the wire winding wheel 203 to rotate. A pulling rope 205 is wound around the outer wall of the wire winding wheel 203, and the other end of the pulling rope 205 is fixedly connected to the upper end of the counterweight 301.

[0043] At the upper end of the counterweight 301, a plurality of compression springs 303 are fixedly installed. The upper ends of the compression springs 303 are in contact with the inner wall of the storage cavity 201, and the ends of the compression springs 303 close to the counterweight 301 press against the counterweight 301.

[0044] On the inner wall of the precast cement layer 1, feeding ports 105 are provided at positions corresponding to the storage cavity 201. Check valves are installed inside the feeding ports 105. After the check valves are opened, the staff can input the prepared soil into the storage cavity 201 through the feeding ports 105, and the check valves are closed after the input is completed.

[0045] On the inner wall of the precast cement layer 1, two switches 106 are fixedly installed. One of the switches 106 controls the forward and reverse rotation of the servo motor 204, and the other switch 106 controls the start and stop of the vibration motor 302. When the winding wheel needs to work, one of the switches 106 is adjusted to control the forward or reverse rotation of the servo motor 204. When the soil in the storage cavity 201 needs to be compacted, the other switch 106 is adjusted to control the vibration motor 302 to work, thereby driving the counterweight 301 to vibrate.

[0046] By adopting the above technical solution, when it is necessary to replenish the soil inside the storage cavity 201, the servo motor 204 is controlled to work, so that the winding wheel rotates, and thus the pulling rope 205 is wound by the winding wheel. When it is necessary to compact the soil in the storage cavity 201, first control the servo motor 204 to rotate in the reverse direction so that the pulling rope 205 is in a relaxed state, and then start the vibration motor 302 to drive the counterweight 301 to vibrate, thereby compacting the soil in the storage cavity 201. The compression springs 303 can always press against the counterweight 301 so that the counterweight 301 is always in close contact with the soil, and when the vibration motor 302 is not working, the soil in the storage cavity 201 is prevented from expanding.

[0047] A plurality of electronic tape measures 103 are embedded in the outer wall of the precast cement layer 1. The number of the electronic tape measures 103 is the same as the number of the cement frames 2, and each electronic tape measure 103 corresponds to one of the cement frames 2. One end of the electronic tape measure 103 is fixedly connected to the upper end of the counterweight 301.

[0048] At the position of the precast cement layer 1 corresponding to the electronic tape measure 103, a guide wheel 104 is rotatably connected through a rotating frame. The outer wall of the guide wheel 104 is in frictional contact with the outer wall of the electronic tape measure 103.

[0049] By adopting the above technical solution, after the counterweight 301 descends, it can drive the extended end of the electronic tape measure 103 to move, so that the electronic tape measure 103 starts to extend, and thus the distance of the descent of the counterweight 301 can be recorded by the electronic tape measure 103.

[0050] A data processing module 107, a control module 108 and a calculation module 109 are installed on the inner wall of the precast cement layer 1. An alarm 110 is also installed on the inner wall of the precast cement layer 1. The electronic tape measure 103 transmits the elongation data to the data processing module 107. The data processing module 107 analyzes the data collected by the electronic tape measure 103. When the length data of the elongation of the electronic tape measure 103 is transmitted to the control module 108, and the decision tree model is trained through the data of the electronic tape measure 103. When the length of the elongation of the electronic tape measure 103 reaches a certain length, the control module 108 controls the alarm 110 to give an alarm. A display screen 111 is installed inside the precast cement layer 1. The elongation data of the electronic tape measure 103 is transmitted to the display screen 111 and displayed by the display screen 111.

[0051] The calculation module 109 calculates the volume of soil that needs to be supplemented into the storage cavity 201 according to the volume of soil discharged from the storage cavity 201 by the following formula:

[0052] ;

[0053] where V is the volume of soil to be supplemented, N is the area at the lower end of the counterweight 301, ρ1 is the density of the soil compacted in the storage cavity 201, ρ0 is the density of the loose soil, and L is the distance of the descent of the counterweight 301.

[0054] The calculation module 109 calculates the total amount of soil lost around the precast cement layer 1 according to the following formula:

[0055] ;

[0056] where V 总 is the total amount of soil lost around the precast cement layer 1, V i is the amount of soil lost in one of the storage bins. The calculation module 109 transmits the calculated total amount of soil to be supplemented and the amount data to be supplemented in each storage cavity 201 to the display screen 111, and the display screen 111 displays them.

[0057] By adopting the above technical solution, when the counterweight 301 descends a certain distance, the length of the electronic tape measure 103 becomes longer. When the soil storage amount in the storage cavity 201 is insufficient, the control module 108 will control the alarm 110 to give an alarm to remind the staff to replenish the soil in time. Among them, the display screen 111 can display the extended length of the electronic tape measure 103. The staff can replenish the soil in the storage cavity 201 in advance according to the work needs. The calculation module 109 can judge the amount of soil to be replenished in each storage cavity 201 according to the moving distance of the counterweight 301, and can calculate the total amount of soil required, which is convenient for the staff to prepare an appropriate amount of soil.

[0058] The above is only the preferred specific implementation mode of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An externally added prefabricated and assembled sunken foundation for a building elevator, comprising a precast cement layer (1), characterized in that: A plurality of cement frames (2) are provided on the outer side of the precast cement layer (1). The cement frames (2) are installed and fixed to the precast cement layer (1). A storage cavity (201) is formed between the inner wall of the cement frame (2) and the outer wall of the precast cement layer (1). Compressed soil is contained inside the storage cavity (201). An extrusion assembly (3) for extruding the soil is provided inside the storage cavity (201). The extrusion assembly (3) includes a counterweight (301), and the counterweight (301) is slidably installed inside the storage cavity (201). A plurality of first discharge ports (202) are formed in the outer wall of the cement frame (2). The inside of the storage cavity (201) communicates with the outside of the cement frame (2) through the first discharge ports (202). A plurality of transition grooves (101) are formed inside the lower side of the precast cement layer (1). The transition grooves (101) communicate with the inside of the storage cavity (201). A second discharge port (102) is formed at the lower end of the transition groove (101). The transition groove (101) communicates with the outside of the lower side of the precast cement layer (1) through the second discharge port (102). The transition groove (101) communicates with the inside of the storage cavity (201). The extrusion assembly (3) further includes a vibration motor (302) for driving the counterweight (301) to vibrate. The vibration motor (302) is fixedly installed at the upper end of the counterweight (301). A winding wheel (203) is rotatably connected to the upper end inside the storage cavity (201). A servo motor (204) is provided on one side of the winding wheel (203). The output end of the servo motor (204) is fixedly connected to the central axis of the winding wheel (203). The servo motor (204) drives the winding wheel (203) to rotate. A pulling rope (205) is wound around the outer wall of the winding wheel (203). The other end of the pulling rope (205) is fixedly connected to the upper end of the counterweight (301). A plurality of extrusion springs (303) are fixedly installed at the upper end of the counterweight (301). The upper ends of the extrusion springs (303) are pressed against the inner wall of the storage cavity (201), and the ends of the extrusion springs (303) close to the counterweight (301) press against the counterweight (301). A plurality of electronic tape measures (103) are embedded in the outer wall of the precast cement layer (1). The number of the electronic tape measures (103) is the same as the number of the cement frames (2), and each electronic tape measure (103) corresponds to one of the cement frames (2). One end of the electronic tape measure (103) is fixedly connected to the upper end of the counterweight (301). A guide wheel (104) is rotatably connected to the position of the precast cement layer (1) corresponding to the electronic tape measure (103) through a rotating frame. The outer wall of the guide wheel (104) is in frictional contact with the outer wall of the electronic tape measure (103). Feeding ports (105) are formed in the inner wall of the precast cement layer (1) at positions opposite to the storage cavity (201). Check valves are installed inside the feeding ports (105). Two switches (106) are fixedly installed on the inner wall of the precast cement layer (1). One switch (106) controls the forward and reverse rotation of the servo motor (204), and the other switch (106) controls the start and stop of the vibration motor (302). A data processing module (107), a control module (108), and a calculation module (109) are installed on the inner wall of the precast cement layer (1). An alarm (110) is also installed on the inner wall of the precast cement layer (1). The electronic tape measure (103) transmits the elongation data to the data processing module (107). The data processing module (107) analyzes the data collected by the electronic tape measure (103). When the elongation length data of the electronic tape measure (103) is transmitted to the control module (108), a decision tree model is trained with the data of the electronic tape measure (103). When the elongation length of the electronic tape measure (103) reaches a certain length, the control module (108) controls the alarm (110) to give an alarm. A display screen (111) is installed inside the precast cement layer (1). The elongation data of the electronic tape measure (103) is transmitted to the display screen (111) and displayed by the display screen (111). The calculation module (109) calculates the volume of soil that needs to be replenished into the storage cavity (201) according to the volume of soil discharged from the storage cavity (201) by the following formula: ； Where V is the volume of soil to be replenished, N is the area at the lower end of the counterweight (301), ρ1 is the density of the compacted soil in the storage cavity (201), ρ0 is the density of the loose soil, and L is the distance that the counterweight (301) descends. The calculation module (109) calculates the total amount of soil lost around the precast cement layer (1) according to the following formula: ； Where V 总 is the total amount of soil lost around the precast cement layer (1), and V i is the amount of soil lost in one of the storage bins. The calculation module (109) transmits the calculated total amount of soil to be replenished and the data of the amount to be replenished in each storage cavity (201) to the display screen (111), and the display screen (111) displays them.

Images