Embedded steel plate structure applied to underground main body structure

Abstract

The utility model relates to the technical field of underground main body structure engineering construction, and discloses an embedded steel plate structure applied to an underground main body structure, which comprises an embedded steel plate, a blanking hole with the diameter of 15cm is formed in the center of the embedded steel plate, a connecting plate is movably connected below the embedded steel plate, and a plurality of anchor nails are circumferentially distributed between the connecting plate and the embedded steel plate. Connecting mechanisms are installed at the four corners of the pre-embedded steel plate correspondingly, each connecting mechanism comprises an installing groove formed in the pre-embedded steel plate, the connecting pipes and the corresponding positioning shafts are mutually locked, so that connection of the pre-embedded steel plate and the connecting plate is completed, a plurality of anchor nails are installed between the pre-embedded steel plate and the connecting plate, and therefore the anchoring effect is achieved. The embedded steel plate and concrete structure steel bars can be stably connected in the construction process, a worker can conveniently vibrate concrete below the embedded steel plate through the discharging holes, quality defects and even quality accidents caused by honeycomb and cavity phenomena of the concrete on the lower portion of the embedded steel plate are avoided, and the safety of a building is further improved.

Description

Technical Field

[0001] The utility model patent relates to the technical field of underground main structure engineering construction. Specifically, it relates to a pre-embedded steel plate structure applied to the underground main structure. Background Technique

[0002] At present, with the increasing maturity of underground structure engineering technology, the depth of foundation pits is also continuously deepening. In the construction of underground main structures, there will be temporary bracing replacement and side wall reinforcement. Inevitably, pre-embedded steel plates will be adopted in structural walls, structural floor slabs or structural bottom beams. Embedding steel plates in structural walls will not have an adverse impact on the casting of structural concrete.

[0003] However, when pre-embedding steel plates on the structural floor slab or structural bottom beam, since the concrete under the pre-embedded steel plate cannot be vibrated during casting, honeycombing and voids will occur in the concrete below it, resulting in serious quality defects and even quality accidents. Content of the Utility Model

[0004] The purpose of the utility model is to provide a pre-embedded steel plate structure applied to the underground main structure, aiming to solve the problem that when pre-embedding steel plates on the structural floor slab or structural bottom beam in the prior art, since the concrete under the pre-embedded steel plate cannot be vibrated during casting, honeycombing and voids will occur in the concrete below it, resulting in serious quality defects and even quality accidents.

[0005] The utility model is realized as follows: A pre-embedded steel plate structure applied to the underground main structure includes a pre-embedded steel plate. A blanking hole with a diameter of 15 cm is opened at the center of the pre-embedded steel plate. A connecting plate is movably connected below the pre-embedded steel plate. A plurality of anchor bolts are circumferentially distributed between the connecting plate and the pre-embedded steel plate. Connecting mechanisms are installed at the four corners of the pre-embedded steel plate. The connecting mechanism includes an installation groove opened on the pre-embedded steel plate. A positioning shaft is installed in the installation groove. Limiting blocks are arranged on both sides of a plurality of positioning shafts. Every two adjacent limiting blocks are arranged oppositely, and elastic connecting blocks are connected to the ends of the two limiting blocks away from each other. A plurality of connecting blocks are all installed on the installation groove. Connecting pipes are installed at the four corners of the connecting plate close to the pre-embedded steel plate. The positions of the four connecting pipes correspond to the positions of the four positioning shafts one by one.

[0006] Preferably, a plurality of the anchor bolts are all made of threaded steel bars with a diameter of 1.8 cm processed into an L shape. One end of the bent threaded steel bar of a plurality of anchor bolts is in contact with the pre-embedded steel plate, and the other end is anchored into the concrete structural slab or concrete structural beam.

[0007] Preferably, a plurality of first connecting grooves are opened on the connecting plate. The length of the first connecting groove is greater than the length of the shorter end of the anchor bolt, and the number of the first connecting grooves corresponds to the number of the anchor bolts.

[0008] Preferably, a plurality of second connection grooves and a plurality of third connection grooves are respectively formed on the side wall surfaces of the embedded steel plate and the connection plate that are close to each other. The positions of the plurality of second connection grooves and the plurality of third connection grooves correspond one by one, and both the second connection grooves and the third connection grooves are adapted to the anchor bolts.

[0009] Preferably, a plurality of stoppers are installed on the embedded steel plate. The plurality of stoppers are respectively in contact with the corresponding anchor bolts, and a plurality of fourth connection grooves are formed on the connection plate. The plurality of stoppers are adapted to the corresponding fourth connection grooves.

[0010] Preferably, at one ends of two mutually distant limiting blocks among the plurality of connection mechanisms, connection shafts are installed. The ends of the connection shafts far away from the corresponding limiting blocks are slidably installed on the connection blocks, and springs are sleeved on the connection shafts. The springs are located between the limiting blocks and the connection blocks.

[0011] Preferably, sleeves are installed on the plurality of connection blocks, and the inner diameter of the sleeves is smaller than the diameter of the springs.

[0012] Preferably, limiting pieces are installed at the ends of the plurality of connection shafts far away from the limiting blocks. The limiting pieces are located at the ends of the sleeves far away from the limiting blocks, and their diameters are larger than the inner diameter of the sleeves.

[0013] Preferably, limiting strips are installed on the tops of the plurality of limiting blocks, and a plurality of limiting grooves are formed on the embedded steel plate. The limiting grooves are adapted to the limiting strips.

[0014] Preferably, notches are formed on the plurality of limiting blocks, and connection rings are installed on the peripheries of the plurality of connection pipes. The connection rings are in contact with the notches.

[0015] Compared with the prior art, the embedded steel plate structure applied to the underground main structure provided by the present utility model installs a plurality of anchor bolts on the connection plate, and then pushes the connection plate towards the embedded steel plate, thereby driving the connection pipe to move synchronously and approach the positioning shaft. When the connection pipe moves towards the positioning shaft, the connection pipe first contacts the limiting block and pushes the limiting blocks on both sides of it towards both sides, so that the connection pipe contacts the wall surface of the installation groove. After the connection pipe contacts the wall surface of the installation groove, the limiting blocks on both sides of it automatically reset under the action of elastic force, thereby locking the connection pipe and the corresponding positioning shaft to each other, thus completing the connection between the embedded steel plate and the connection plate, and further installing a plurality of anchor bolts between the embedded steel plate and the connection plate, which is convenient for the stable connection between the embedded steel plate and the concrete structure steel bars during the construction process, and further convenient for the staff to vibrate the concrete below the embedded steel plate through the feeding hole, thereby avoiding the generation of honeycombing, voids and other quality defects or even quality accidents in the concrete below the embedded steel plate, and further improving the safety of the building. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the overall structural schematic diagram of the embedded steel plate structure applied to the underground main structure provided by the present utility model;

[0017] Figure 2 It is the explosion structural schematic diagram of the embedded steel plate structure applied to the underground main structure provided by the present utility model;

[0018] Figure 3 It is the top - view structural schematic diagram of the connecting plate of the embedded steel plate structure applied to the underground main structure provided by the present utility model;

[0019] Figure 4 It is the bottom - view structural schematic diagram of the embedded steel plate of the embedded steel plate structure applied to the underground main structure provided by the present utility model;

[0020] Figure 5 It is the sectional structural schematic diagram of the connecting mechanism of the embedded steel plate structure applied to the underground main structure provided by the present utility model;

[0021] Figure 6 It is the enlarged structural schematic diagram at position A of the embedded steel plate structure applied to the underground main structure provided by the present utility model.

[0022] Explanation of reference numerals:

[0023] 1. Embedded steel plate; 2. Cutting hole; 3. Connecting plate; 4. Anchor bolt; 5. Connecting mechanism; 6. Positioning shaft; 7. Limiting block; 8. Connecting block; 9. Installation groove; 10. Connecting pipe; 11. First connecting groove; 12. Second connecting groove; 13. Third connecting groove; 14. Block; 15. Fourth connecting groove; 16. Connecting shaft; 17. Spring; 18. Sleeve; 19. Limiting piece; 20. Limiting strip; 21. Limiting groove; 22. Connecting ring; 23. Notch. Detailed implementation manners

[0024] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the following further details the present utility model in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0025] The following describes the implementation of the present utility model in detail in conjunction with specific embodiments.

[0026] In the attached drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, it is based on the orientation or positional relationship shown in the attached drawings. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the attached drawings are only for illustrative purposes and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0027] Referring to Figures 1-6 as shown, it is a preferred embodiment provided by the present utility model.

[0028] The embedded steel plate structure applied to the underground main structure includes an embedded steel plate 1. A blanking hole 2 with a diameter of 15 cm is opened at the center of the embedded steel plate 1. A connecting plate 3 is movably connected below the embedded steel plate 1. A plurality of anchor bolts 4 are circumferentially distributed between the connecting plate 3 and the embedded steel plate 1. Connecting mechanisms 5 are installed at the four corners of the embedded steel plate 1. The connecting mechanism 5 includes an installation groove 9 opened on the embedded steel plate 1. A positioning shaft 6 is installed in the installation groove 9. Limiting blocks 7 are arranged on both sides of a plurality of positioning shafts 6. Every two adjacent limiting blocks 7 are arranged opposite to each other, and elastic connecting blocks 8 are connected to the ends of both of them away from each other. A plurality of connecting blocks 8 are all installed on the installation groove 9. Connecting pipes 10 are installed at the four corners of the connecting plate 3 close to the embedded steel plate 1. The positions of the four connecting pipes 10 correspond to the positions of the four positioning shafts 6 one by one.

[0029] By installing a plurality of anchor bolts 4 on the connecting plate 3 and then pushing the connecting plate 3 towards the embedded steel plate 1, the connecting pipe 10 is driven to move synchronously and approach the positioning shaft 6. When the connecting pipe 10 moves towards the positioning shaft 6, the connecting pipe 10 first contacts the limiting block 7 and pushes the limiting blocks 7 on both sides thereof to both sides, so that the connecting pipe 10 contacts the wall surface of the installation groove 9. After the connecting pipe 10 contacts the wall surface of the installation groove 9, the limiting blocks 7 on both sides of it automatically reset under the action of elastic force, so as to lock the connecting pipe 10 and the corresponding positioning shaft 6 with each other, thus completing the connection between the embedded steel plate 1 and the connecting plate 3. Furthermore, a plurality of anchor bolts 4 are installed between the embedded steel plate 1 and the connecting plate 3, which is convenient for the stable connection between the embedded steel plate 1 and the concrete structure steel bars during the construction process. Furthermore, it is convenient for the staff to vibrate the concrete below the embedded steel plate 1 through the blanking hole 2, so as to avoid the occurrence of honeycombing and voids in the concrete below the embedded steel plate 1, resulting in quality defects or even quality accidents, and further improving the safety of the building.

[0030] Specifically, in this embodiment, several anchor bolts 4 are all L-shaped steel bars with a diameter of 1.8 cm. One end of the bent steel bar of several anchor bolts 4 is in contact with the embedded steel plate 1, and the other end is anchored into the concrete structural slab or concrete structural beam. By setting the anchor bolts 4 as L-shaped and connecting their two ends to the embedded steel plate 1 and the concrete structural slab and concrete structural beam respectively, the connection area between the anchor bolts 4 and the embedded steel plate 1 is increased, and the stability and anti-slip performance of the embedded steel plate are significantly enhanced.

[0031] Specifically, in this embodiment, several first connection grooves 11 are formed on the connecting plate 3. The length of the first connection groove 11 is greater than the length of the shorter end of the anchor bolt 4, and the number of the first connection grooves 11 corresponds to the number of the anchor bolts 4, so that the anchor bolts 4 can be inserted on the connecting plate 3 through the first connection grooves 11, thereby facilitating the connection of the anchor bolts 4 between the connecting plate 3 and the embedded steel plate 1.

[0032] Specifically, in this embodiment, several second connection grooves 12 and several third connection grooves 13 are respectively formed on the side walls of the embedded steel plate 1 and the connecting plate 3 close to each other. The positions of the several second connection grooves 12 and the several third connection grooves 13 correspond one by one, and both the second connection grooves 12 and the third connection grooves 13 are adapted to the anchor bolts 4, so that the anchor bolts 4 can be completely adapted between the embedded steel plate 1 and the connecting plate 3 through the second connection grooves 12 and the corresponding third connection grooves 13, thereby increasing the connection area between the anchor bolts 4 and the connecting plate 3 and the embedded steel plate 1 and improving the installation stability of the anchor bolts 4.

[0033] Specifically, in this embodiment, several stoppers 14 are installed on the embedded steel plate 1. The several stoppers 14 are respectively in contact with the corresponding anchor bolts 4, and several fourth connection grooves 15 are formed on the connecting plate 3. The several stoppers 14 are adapted to the corresponding fourth connection grooves 15, so that after the anchor bolts 4 are inserted on the connecting plate 3 and the anchor bolts 4 are rotated, when the anchor bolts 4 rotate to contact the corresponding stoppers 14, it means that the anchor bolts 4 are exactly in the second connection grooves 12 and the third connection grooves 13, thereby clarifying the positional relationship between the anchor bolts 4 and the second connection grooves 12 and the third connection grooves 13.

[0034] Specifically, in this embodiment, one ends of two mutually distant limiting blocks 7 in several connecting mechanisms 5 are both installed with connecting shafts 16. The ends of the connecting shafts 16 far from the corresponding limiting blocks 7 are slidably installed on the connecting blocks 8, and springs 17 are sleeved on the connecting shafts 16. The springs 17 are located between the limiting blocks 7 and the connecting blocks 8, so that when two adjacent limiting blocks 7 move away from each other, they can drive the connecting shafts 16 to move synchronously, and then move towards the positioning shaft 6 under the action of the springs 17, thereby indirectly completing the locking of the connecting pipe 10 and the positioning shaft 6.

[0035] Specifically, in this embodiment, sleeves 18 are installed on several connecting blocks 8. The inner diameter of the sleeve 18 is smaller than the diameter of the spring 17, so that when the spring 17 moves under force towards the sleeve 18, it can be stuck at a specific position by the sleeve 18, thus facilitating the later reset of the spring 17 to drive the movement of the limit block 7.

[0036] Specifically, in this embodiment, limit pieces 19 are installed at one ends of several connecting shafts 16 far away from the limit block 7. The limit piece 19 is located at one end of the sleeve 18 far away from the limit block 7, and its diameter is larger than the inner diameter of the sleeve 18, so that when the spring 17 drives the connecting shaft 16 to reset, the limit piece 19 can limit the moving distance of the connecting shaft 16, thereby avoiding the situation that the connecting shaft 16 moves excessively and detaches from the sleeve 18.

[0037] Specifically, in this embodiment, limit bars 20 are installed on the tops of several limit blocks 7. A plurality of limit grooves 21 are formed in the embedded steel plate 1. The limit grooves 21 are adapted to the limit bars 20, so that the limit block 7 can be slidably connected to the embedded steel plate 1 through the adaptability of the limit bar 20 and the limit groove 21. When the connecting pipe 10 pushes the limit block 7 to move, the limit block 7 can move along the direction of the limit groove 21, thereby avoiding the situation that the limit block 7 deviates when moving.

[0038] Specifically, in this embodiment, notch openings 23 are formed in several limit blocks 7. Connecting rings 22 are installed on the peripheries of several connecting pipes 10. The connecting rings 22 are in contact with the notch openings 23. During the process that the connecting pipe 10 moves to contact with the installation groove 9, the connecting rings 22 on the connecting pipe 10 will first push open the limit blocks 7 on both sides of it to contact with the installation groove 9, and then the two limit blocks 7 are reset under the action of elastic force to contact with the connecting pipe 10, and at the same time, the connecting rings 22 are clamped in the notch openings 23, thereby locking the connecting pipe 10 and the limit block 7, and further ensuring the connection stability between the embedded steel plate 1 and the connecting plate 3.

[0039] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. The embedded steel plate structure used in the underground main structure includes the embedded steel plate, which is characterized by: A feeding hole with a diameter of 15 cm is provided at the center of the embedded steel plate, a connecting plate is movably connected to the bottom of the embedded steel plate, and a number of anchor nails are distributed circumferentially between the connecting plate and the embedded steel plate. Connecting mechanisms are installed at the four corners of the embedded steel plate, and the connecting mechanism includes a mounting groove provided on the embedded steel plate, a positioning shaft is installed in the mounting groove, and limit blocks are provided on both sides of the positioning shafts, and every two adjacent limit blocks are arranged opposite to each other, and the ends of the two that are far away from each other are elastically connected with connecting blocks, and the several connecting blocks are installed on the mounting groove, and connecting pipes are installed at the four corners of the connecting plate close to the embedded steel plate, and the positions of the four connecting pipes correspond one by one to the positions of the four positioning shafts.

2. The embedded steel plate structure used in the underground main structure as claimed in claim 1 is characterized in that: The anchors are all threaded steel bars with a diameter of 1.8 cm processed into an L shape. The bent ends of the threaded steel bars are in contact with the embedded steel plate, and the other ends are anchored in the concrete structural plate or concrete structural beam.

3. The embedded steel plate structure used in the underground main structure as claimed in claim 1 is characterized in that: The connecting plate is provided with a plurality of first connecting grooves, the length of the first connecting grooves is greater than the length of the shorter end of the anchor, and the number of the first connecting grooves corresponds to the number of the anchors.

4. The embedded steel plate structure used in the underground main structure as claimed in claim 1 is characterized in that: A plurality of second connection grooves and a plurality of third connection grooves are respectively provided on the side wall surface where the embedded steel plate and the connecting plate are close to each other. The positions of the plurality of second connection grooves and the plurality of third connection grooves correspond one to one, and the second connection grooves and the third connection grooves are both adapted to the anchor nails.

5. The embedded steel plate structure used in the underground main structure as claimed in claim 1 is characterized in that: The embedded steel plate is provided with a plurality of blocks, which are respectively in contact with corresponding anchor nails, and the connecting plate is provided with a plurality of fourth connecting grooves, which are matched with corresponding fourth connecting grooves.

6. The embedded steel plate structure used in the underground main structure as claimed in claim 1, characterized in that: One end of two mutually distant limit blocks in several of the connecting mechanisms is equipped with a connecting shaft, and the end of the connecting shaft away from the corresponding limit block is slidably installed on the connecting block, and a spring is sleeved on the connecting shaft, and the spring is located between the limit block and the connecting block.

7. The embedded steel plate structure used in the underground main structure as claimed in claim 6, characterized in that: A plurality of the connecting blocks are each provided with a sleeve, and the inner diameter of the sleeve is smaller than the diameter of the spring.

8. The embedded steel plate structure used in the underground main structure as claimed in claim 7, characterized in that: A limiting plate is installed at one end of the connecting shafts away from the limiting block. The limiting plate is located at the end of the sleeve away from the limiting block, and its diameter is larger than the inner diameter of the sleeve.

9. The embedded steel plate structure used in the underground main structure as claimed in claim 1, characterized in that: The tops of the plurality of limit blocks are all provided with limit strips, and the embedded steel plate is provided with a plurality of limit grooves, which are matched with the limit strips.

10. The embedded steel plate structure used in the underground main structure as claimed in claim 1, characterized in that: A plurality of the limit blocks are provided with notches, and a connecting ring is installed on the periphery of a plurality of connecting pipes, and the connecting ring is in contact with the notches.

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