Embedded channel steel back-jacking structure for basement

Abstract

The pre-embedded channel steel back-jacking structure comprises four jacking rods and two channel steel bodies, the two channel steel bodies are located at the tops of the four jacking rods, two connecting assemblies are installed among the four jacking rods, each connecting assembly comprises four installing sleeves which are arranged outside the four jacking rods in a sliding and sleeving mode, and the four installing sleeves are connected with the two channel steel bodies. The outer walls of the circumferences of the four mounting sleeves are each fixedly connected with a connecting rod, the two opposite connecting rods are sleeved with the same connecting sleeve, the middles of the two connecting sleeves are each provided with a through hole, a connecting shaft is inserted into each through hole, the four ejector rods and the four mounting sleeves are each provided with an inserting hole, and the inserting holes are inserted into the connecting shafts. And the same plug pin I is inserted into every two adjacent insertion holes in a sliding manner. According to the device disclosed by the utility model, a plurality of ejector rods can be connected into a whole by arranging the connecting assemblies, so that the mounting process can be omitted, and the distance between the ejector rods can be adjusted according to field conditions, thereby ensuring that the device can adapt to different construction requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of roof return structures, in particular to a pre-buried channel steel roof return structure for a basement. Background Art

[0002] Embedded channel steel roof return structures are primarily used in construction projects, particularly in areas requiring support or reinforcement. This structure uses embedded channel steel and other connectors or support systems to support and reinforce the superstructure, making it a common practice in basement roof slab post-casting projects.

[0003] A search revealed a utility model patent with Chinese patent publication number CN205558237U, which discloses a cantilever scaffolding structure with no need for a retracted top. The structure includes a first structural floor and a second structural floor. Frame beams are positioned at the bottom ends of the first and second structural floors, with a cantilevered slab positioned outside the frame beams. An I-beam is positioned above the first structural floor, with a steel plate spacer positioned between the I-beam and the first structural floor.

[0004] The cantilever rod of the above-mentioned top-returning structure is supported by being fixedly connected to the lower floor slab with embedded parts and steel plate pads. However, its width and height are fixed, so it will not be easy to adapt to buildings with larger areas or heights, and there is room for improvement. Utility Model Content

[0005] The purpose of the utility model is to provide a pre-buried channel steel roof return structure for a basement to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pre-buried channel steel return top structure for a basement, comprising four top rods and two channel steel bodies, the two channel steel bodies being located at the top of the four top rods, two connecting assemblies being installed between the four top rods, the connecting assemblies comprising four mounting sleeves slidingly sleeved on the outside of the four top rods, the circumferential outer walls of the four mounting sleeves being fixedly connected to a connecting rod, the same connecting sleeve being provided relative to the two connecting rod sleeves, a through hole being opened in the middle of the two connecting sleeves, and a connecting shaft being inserted into the inside of the two through holes.

[0007] As a further preferred embodiment of the present technical solution, the four push rods and the four mounting sleeves are all provided with sockets, two adjacent sockets are slidably connected with the same latch 1, and the four latches 1 are slidably connected with a latch 2.

[0008] Being able to connect multiple top rods into a whole can eliminate the installation process, and the spacing of the top rods can be adjusted according to the on-site conditions, so as to ensure that the device can adapt to different construction needs. The four top rods are respectively inserted into the four installation sleeves, and then the connecting rods outside the installation sleeves are inserted into the two connecting sleeves installed together using the connecting shaft. At this time, the four top rods can be combined into a whole, so that the four top rods can check and balance each other and will not tip over. Since the two connecting sleeves are rotatably connected, the two connecting sleeves can be folded or unfolded. At this time, the relative distance between the top rods can be adjusted, ensuring that the device is more practical. Then, pass the pin one through the sockets of the top rod and the installation sleeve, and the position of the installation sleeve will be restricted. Finally, insert the pin two into the pin one to ensure that the pin one will not easily fall out of the socket.

[0009] As a further preferred embodiment of the present technical solution, an extension assembly is installed on the top of each of the four push rods, and the extension assembly includes a screw rod that is slidably inserted inside the push rod, a support block is coaxially fixed to the outer wall of the top of the screw rod, and a screw sleeve is coaxially fixed to the outer wall of the top of the push rod, and the screw sleeve forms a transmission fit with the screw rod.

[0010] As a further preferred embodiment of the present technical solution, a plurality of connecting rods are fixedly connected to the outer wall of the bottom of the support block, and the outer walls of the bottom of the four connecting rods are fixedly connected to the same rotating sleeve, and the rotating sleeve sliding sleeve is arranged outside the top rod.

[0011] As a further preferred embodiment of the present technical solution, the top outer wall of the support block is rotatably connected to a rotating block, and the four rotating blocks are respectively fitted with the inner walls of the top walls of the two channel steel bodies.

[0012] If the push rod cannot reach the top wall, the connecting rod will be driven to rotate by the rotating sleeve, the connecting rod will drive the support block to rotate, and the support block will drive the screw to rotate. The screw will rotate and move upward along the screw sleeve until the rotating block is driven by the screw to contact the top wall of the basement, and the support block and the rotating block are rotatably connected, which can ensure that the screw can continue to rotate after the rotating block contacts the top wall of the basement, thereby ensuring that the support effect of the push rod is good enough.

[0013] As a further preferred embodiment of the present technical solution, the lead angle of the screw is smaller than the equivalent friction angle.

[0014] As a further preferred embodiment of the present technical solution, a support plate is coaxially fixed to the outer wall of the bottom of each of the four push rods, and the area of ​​the support plate is larger than the area of ​​the push rod.

[0015] The utility model provides a pre-buried channel steel roof return structure for a basement, which has the following beneficial effects:

[0016] (1) The present invention can connect multiple top rods into a whole by setting a connecting component, which can save the installation process and adjust the spacing of the top rods according to the on-site conditions, so as to ensure that the device can adapt to different construction needs. The four top rods are respectively inserted into the four installation sleeves, and then the connecting rods outside the installation sleeves are inserted into the two connecting sleeves installed together by the connecting shaft. At this time, the four top rods can be combined into a whole, so that the four top rods can check and balance each other and will not tip over. Since the two connecting sleeves are rotatably connected, the two connecting sleeves can be folded or unfolded. At this time, the relative distance between the top rods can be adjusted, ensuring that the device is more practical. Then, the pin 1 is passed through the sockets of the top rod and the installation sleeve, and the position of the installation sleeve will be restricted. Finally, the pin 2 is inserted into the pin 1 to ensure that the pin 1 will not easily fall out of the socket.

[0017] (2) The utility model sets an extension component. If the top rod cannot reach the top wall, the connecting rod is driven to rotate by the rotating sleeve, the connecting rod drives the support block to rotate, and the support block drives the screw to rotate. The screw will rotate and move upward along the screw sleeve until the rotating block is driven by the screw to contact the top wall of the basement. The support block and the rotating block are rotatably connected, which can ensure that the screw can continue to rotate after the rotating block contacts the top wall of the basement, thereby ensuring that the support effect of the top rod is good enough. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model from a first perspective;

[0019] Figure 2 This is a schematic diagram of the overall structure of the utility model from a second perspective;

[0020] Figure 3 For the utility model Figure 1 A in the middle is an enlarged structural diagram;

[0021] Figure 4 For the utility model Figure 2 The enlarged structural diagram at B in the middle;

[0022] In the figure: 1. Push rod; 2. Channel steel body; 3. Connecting assembly; 4. Extension assembly; 301. Mounting sleeve; 302. Connecting rod; 303. Connecting sleeve; 304. Connecting shaft; 305. Socket; 306. Pin 1; 307. Pin 2; 401. Screw sleeve; 402. Screw; 403. Support block; 404. Rotating block; 405. Connecting rod; 406. Rotating sleeve. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0024] The utility model provides a technical solution: Figure 2 and Figure 3 As shown, in this embodiment, a pre-buried channel steel return top structure for a basement includes four top rods 1 and two channel steel bodies 2. The two channel steel bodies 2 are located at the top of the four top rods 1. Two connecting components 3 are installed between the four top rods 1. The connecting components 3 include four mounting sleeves 301 that are slidably sleeved on the outside of the four top rods 1. The circumferential outer walls of the four mounting sleeves 301 are fixedly connected to a connecting rod 302. The same connecting sleeve 303 is sleeved relative to the two connecting rods 302. A through hole is opened in the middle of the two connecting sleeves 303, and a connecting shaft 304 is inserted into the inside of the two through holes.

[0025] The four push rods 1 and the four mounting sleeves 301 are all provided with a socket 305 , and two adjacent sockets 305 are slidably plugged with a same latch 1 306 , and four latch 1s 306 are slidably plugged with a latch 2 307 .

[0026] Insert the four top rods 1 into the four mounting sleeves 301 respectively, and then insert the connecting rod 302 outside the mounting sleeve 301 into the two connecting sleeves 303 installed together by the connecting shaft 304. At this time, the four top rods 1 can be combined into a whole, so that the four top rods 1 can check and balance each other and will not tip over. Since the two connecting sleeves 303 are rotatably connected, the two connecting sleeves 303 can be folded or unfolded. At this time, the relative distance between the top rods 1 can be adjusted, ensuring that the practicality of the device is stronger. Then, pass the pin 1 306 through the socket 305 of the top rod 1 and the mounting sleeve 301, and the position of the mounting sleeve 301 will be restricted. Finally, insert the pin 2 307 into the pin 1 306 to ensure that the pin 1 306 will not easily fall out of the socket 305.

[0027] like Figure 4 and Figure 4 As shown, an extension assembly 4 is installed on the top of each of the four push rods 1. The extension assembly 4 includes a screw rod 402 that is slidably inserted inside the push rod 1. A support block 403 is coaxially fixed to the outer wall of the top of the screw rod 402. A screw sleeve 401 is coaxially fixed to the outer wall of the top of the push rod 1. The screw sleeve 401 and the screw rod 402 form a transmission fit.

[0028] The outer wall of the bottom of the support block 403 is fixedly connected to a plurality of connecting rods 405 , and the outer walls of the bottom of the four connecting rods 405 are fixedly connected to the same rotating sleeve 406 , which is slidably sleeved on the outside of the top rod 1 .

[0029] The top outer wall of the support block 403 is rotatably connected to a rotating block 404 , and the four rotating blocks 404 are respectively fitted with the inner walls of the top walls of the two channel steel bodies 2 .

[0030] If the top rod 1 cannot reach the top wall, the connecting rod 405 is driven to rotate by the rotating sleeve 406, the connecting rod 405 drives the supporting block 403 to rotate, and the supporting block 403 drives the screw 402 to rotate. The screw 402 will rotate and move upward along the screw sleeve 401 until the rotating block 404 is driven by the screw 402 to contact the top wall of the basement, and the support block 403 and the rotating block 404 are rotatably connected, which can ensure that after the rotating block 404 contacts the top wall of the basement, the screw 402 can continue to rotate, thereby ensuring that the supporting effect of the top rod 1 is good enough.

[0031] like Figure 4 As shown, the thread lead angle of the screw 402 is smaller than the equivalent friction angle, which can prevent the screw 402 from retracting into the inside of the push rod 1 when subjected to external force.

[0032] like Figure 1 As shown, a support plate is coaxially fixed to the outer wall of the bottom of each of the four mandrels 1, and the area of ​​the support plate is larger than that of the mandrel 1, which can form a barrier between the mandrel 1 and the ground, thereby preventing the mandrel 1 from causing pressure damage to the ground.

[0033] The utility model provides a pre-buried channel steel roof return structure for a basement. The specific working principle is as follows:

[0034] When the device is used for the first time, the four top rods 1 are respectively inserted into the four installation sleeves 301, and then the connecting rod 302 outside the installation sleeve 301 is inserted into the two connecting sleeves 303 installed together by the connecting shaft 304. At this time, the four top rods 1 can be combined into a whole, so that the four top rods 1 can check and balance each other and will not tip over. Since the two connecting sleeves 303 are rotatably connected, the two connecting sleeves 303 can be folded or unfolded. At this time, the relative distance between the top rods 1 can be adjusted, ensuring that the device is more practical. Then, the pin 1 306 is passed through the hole 305 of the top rod 1 and the installation sleeve 301, and the position of the installation sleeve 301 will be restricted. When the jack is lifted up, the second latch 307 is inserted into the first latch 306 to ensure that the first latch 306 will not easily fall out of the socket 305. If the push rod 1 cannot touch the top wall, the connecting rod 405 is driven to rotate by the rotating sleeve 406, and the connecting rod 405 drives the support block 403 to rotate, and the support block 403 drives the screw 402 to rotate. The screw 402 will rotate and move upward along the screw sleeve 401 until the rotating block 404 is driven by the screw 402 to contact the top wall of the basement, and the support block 403 and the rotating block 404 are rotatably connected, which can ensure that after the rotating block 404 contacts the top wall of the basement, the screw 402 can continue to rotate, thereby ensuring that the supporting effect of the push rod 1 is good enough.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pre-buried channel steel return roof structure for a basement, comprising four top rods (1) and two channel steel bodies (2), characterized in that: The two channel steel bodies (2) are located at the top of the four top rods (1), and two connecting assemblies (3) are installed between the four top rods (1). The connecting assembly (3) includes four mounting sleeves (301) that are slidably sleeved on the outside of the four top rods (1). The circumferential outer walls of the four mounting sleeves (301) are fixedly connected to a connecting rod (302), and the same connecting sleeve (303) is sleeved relative to the two connecting rods (302). A through hole is opened in the middle of the two connecting sleeves (303), and a connecting shaft (304) is inserted into the inside of the two through holes.

2. The pre-buried channel steel roof return structure for a basement according to claim 1, characterized in that: The four push rods (1) and the four mounting sleeves (301) are all provided with a socket (305), two adjacent sockets (305) are slidably connected with a same latch pin 1 (306), and the four latch pins 1 (306) are slidably connected with a latch pin 2 (307).

3. The pre-buried channel steel roof return structure for a basement according to claim 1, characterized in that: An extension assembly (4) is installed on the top of each of the four push rods (1), and the extension assembly (4) includes a screw rod (402) that is slidably inserted into the inside of the push rod (1), a support block (403) is coaxially fixed to the outer wall of the top of the screw rod (402), and a screw sleeve (401) is coaxially fixed to the outer wall of the top of the push rod (1), and the screw sleeve (401) and the screw rod (402) form a transmission fit.

4. The pre-buried channel steel roof return structure for a basement according to claim 3, characterized in that: The outer wall at the bottom of the support block (403) is fixedly connected to a plurality of connecting rods (405), and the outer walls at the bottom of the four connecting rods (405) are fixedly connected to the same rotating sleeve (406), and the rotating sleeve (406) is slidably sleeved outside the top rod (1).

5. The pre-buried channel steel roof return structure for a basement according to claim 3, characterized in that: The top outer wall of the support block (403) is rotatably connected to a rotating block (404), and the four rotating blocks (404) are respectively fitted with the inner walls of the top walls of the two channel steel bodies (2).

6. The pre-buried channel steel roof return structure for a basement according to claim 3, characterized in that: The thread lead angle of the screw (402) is smaller than the equivalent friction angle.

7. The pre-buried channel steel roof return structure for a basement according to claim 1, characterized in that: A support plate is coaxially fixed to the outer wall of the bottom of each of the four mandrels (1), and the area of ​​the support plate is larger than the area of ​​the mandrel (1).

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