Double-row pile foundation pit retaining structure and construction method thereof

Abstract

The present invention belongs to the technical field of foundation pit retaining, and discloses a double-row pile foundation pit retaining structure, comprising a lower retaining rod, the interior of which is hollow; a detachable bellows, the detachable bellows being fixedly mounted on the lower retaining rod, the detachable bellows being located on the upper surface of the lower retaining rod; a scraping support block, the scraping support block being fixedly connected to the lower retaining rod, the scraping support block being located on the lower end outer wall of the lower retaining rod; an elongated belt structure, the elongated belt structure being fixedly connected to the lower retaining rod, the elongated belt structure being located inside the lower retaining rod; and an upper retaining rod, the upper retaining rod being fixedly connected to the detachable bellows. Under the action of an internal spring, the present invention drives a first sleeve to reciprocate on the scraping support block to scrape away the dirt on the outer surface of the first sleeve, automatically scraping away the dirt on the outer surface, reducing the need for people to subsequently clean the lower retaining rod, and being easy to use, bringing convenience to people.

Description

Technical Field

[0001] The invention belongs to the technical field of foundation pit enclosure, and in particular to a double-row pile foundation pit enclosure structure and a construction method thereof. Background Art

[0002] The foundation pit is a soil pit excavated at the foundation design position according to the base elevation and foundation plane dimensions. In the foundation pit enclosure, double-row piles are a form of enclosure adopted by people. The double-row piles are a retaining structure arranged along the side wall of the foundation pit and composed of a rigid frame and a crown beam connected by front and rear rows of supporting piles and beams. When enclosing the double-row piles, people usually insert the enclosure rods into the soil for fixed enclosure. However, in this insertion method, when people take out the enclosure rods, the part inserted into the soil will be pulled out together with some larger soil. There is no corresponding soil cleaning structure on the enclosure rods, and people need to manually clean up the larger pieces of soil on the enclosure rods, which is very inconvenient. In this regard, we propose a double-row pile foundation pit enclosure structure and a construction method thereof. Summary of the Invention

[0003] In order to solve the problems raised in the above-mentioned background technology, the present invention provides a double-row pile foundation pit retaining structure and a construction method thereof. Under the action of the internal spring, the first sleeve is driven to scrape back and forth on the scraping support block to scrape off the soil on the outer surface of the first sleeve, and the soil on the outer surface is automatically scraped off, reducing people's subsequent cleaning of the lower retaining rod. It is easy to use and brings convenience to people.

[0004] To achieve the above object, the present invention provides the following technical solutions: a double-row pile foundation pit retaining structure, comprising a lower retaining rod, the interior of the lower retaining rod being hollow;

[0005] A detachable bellows, the detachable bellows being fixedly mounted on the lower enclosure rod and located on the upper surface of the lower enclosure rod;

[0006] A scraping support block, the scraping support block is fixedly connected to the lower enclosure rod, and the scraping support block is located on the outer wall of the lower end of the lower enclosure rod;

[0007] An elongated belt structure, the elongated belt structure is fixedly connected to the lower enclosure rod, and the elongated belt structure is located inside the lower enclosure rod;

[0008] An upper enclosure rod, the upper enclosure rod being fixedly connected to the detachable bellows, the upper enclosure rod being located on the upper surface of the detachable bellows, and the upper enclosure rod having the same internal structure as the lower enclosure rod;

[0009] A telescopic scraping mechanism is fixedly connected to the lower guardrail and is located inside the lower guardrail.

[0010] Preferably, the telescopic scraping mechanism includes a first sleeve, which is sleeved on the inside of the lower guardrail, and a limiting groove is provided inside the lower guardrail. A clamping block is fixedly connected to the first sleeve and clamped inside the limiting groove.

[0011] Preferably, an insert is fixedly connected to the lower surface of the first sleeve, a spring is fixedly connected to the interior of the first sleeve, and one end of the spring away from the first sleeve is fixedly connected to the interior of the lower enclosure rod.

[0012] Preferably, the stretching belt structure includes a first rotating column, which is rotatably connected to the inside of the lower protective rod, and the outer wall of the first rotating column is fixedly connected to a cloth belt, which is rolled up on the outer wall of the first rotating column.

[0013] Preferably, one end of the cloth belt away from the first rotating column is fixedly connected to a connecting column, and an outer wall of the connecting column is fixedly connected to a hook.

[0014] Preferably, the lower guardrail is provided with a slot for pulling out the cloth belt, the outer wall of the lower guardrail is fixedly connected with a hanging ring, and the upper guardrail is fixedly connected with an equal hanging ring, and when the cloth belt is pulled out, it is fixed by hanging the hook on the hanging ring on the upper guardrail.

[0015] Preferably, the scraping support block includes a support ring and adjustment pins. The support ring is fixedly connected to the lower surface of the lower enclosure rod. The lower surface of the support ring is fixedly connected to a plurality of adjustment pins.

[0016] Preferably, the adjustment plug includes a connecting block, the upper surface of the connecting block is fixedly connected to the lower surface of the support ring, a fixing button is passed through the interior of the connecting block, and the interior of the connecting block is rotatably connected to a second rotating column.

[0017] Preferably, a slot matching the fixing button is provided on the second rotating column, the fixing button passes through the slot on the second rotating column, the second rotating column is rotatably connected to the fixing button through the slot, and the lower end of the second rotating column is conical.

[0018] A construction method for a double-row pile foundation pit retaining structure, the construction steps comprising:

[0019] S1: Take out the structure and place it at the location where it is to be placed. The user steps on the upper surface of the scraping support block with his feet;

[0020] S2: Press the plug into the soil to secure the lower guardrail;

[0021] S3: Stretch and pull out the detachable corrugated pipe, insert the upper enclosure rod upside down into the soil, and use the same method to insert the upper enclosure rod upside down into the soil to fix it;

[0022] S4: The user pulls out the connecting column, extends the cloth belt, extends it to the outer wall of the upper enclosure bar, and hangs the hook on the hanging ring fixed on the upper enclosure bar to secure it;

[0023] S5: Check the stability of the structure, place loose parts, complete the construction and installation of one group of structures, and install the next group of structures using the same construction steps.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] When inserting the lower guardrail into the soil, people step on the scraping support block and insert the plug into the soil with force to fix it. Under the action of people's force, the spring expands and contracts back and forth. When the plug is completely inserted into the soil, the internal spring is in an extended state, pushing the lower guardrail to rise. When people take out the lower guardrail, they pull the lower guardrail out of the soil with force. At this time, the outer surface of the first sleeve will be stained with soil. When people hold the lower guardrail and pull out the first sleeve with force, the plug is stretched. When the plug is completely inserted into the soil, the spring inside is in an extended state, pushing the lower guardrail to rise. When pulled out from the soil, under the action of force, the spring will rebound back and forth until the force disappears. During the reciprocating action of the spring, it drives the first sleeve to scrape back and forth on the scraping support block to scrape off the dirt on the outer surface of the first sleeve. The dirt on the outer surface is automatically scraped off, reducing people's subsequent cleaning of the lower enclosure rod. It is easy to use and brings convenience to people. The upper enclosure rod and the lower enclosure rod are formed into a whole through the stretched cloth belt to perform the enclosure function, and the fixing method is simple and the installation and construction are fast, which brings convenience to people. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of the present invention when in use;

[0027] Figure 2 This is a schematic diagram of the structure of the present invention when not in use;

[0028] Figure 3 Schematic diagram of the internal structure of the lower guardrail of the present invention;

[0029] Figure 4 This is an enlarged schematic diagram of the telescopic scraping mechanism of the present invention;

[0030] Figure 5 This is a front view sectional view of the elongated belt structure of the present invention;

[0031] Figure 6 This is a bottom view of the lower guardrail of the present invention;

[0032] Figure 7 This is a schematic diagram of the adjusting column structure of the present invention.

[0033] In the figure: 1. Removable bellows; 2. Lower guardrail; 3. Scrape support block; 4. Elongated belt structure; 5. Upper guardrail; 6. Telescopic scraper mechanism; 21. Hanging ring; 61. Limiting groove; 62. First sleeve; 63. Insert block; 64. Spring; 41. First rotating column; 42. Cloth belt; 43. Hook; 44. Connecting column; 31. Support ring; 32. Adjusting insert column; 321. Connecting block; 322. Fixing button; 323. Second rotating column. Implementation Method

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] like Figures 1 to 7 As shown, the present invention provides a double-row pile foundation pit retaining structure, including a lower retaining rod 2, the interior of the lower retaining rod 2 is hollow, and the hollow design is to allow space for placing an installation structure inside;

[0036] The detachable bellows 1 is fixedly installed with the lower guardrail 2. The detachable bellows 1 is located on the upper surface of the lower guardrail 2. The detachable bellows 1 can connect the upper guardrail 5 with the lower guardrail 2 to form a whole, and can be disassembled by people, so that the structure becomes two separate individuals to be used independently.

[0037] The scraping support block 3 is fixedly connected to the lower enclosure rod 2, and the scraping support block 3 is located on the outer wall of the lower end of the lower enclosure rod 2;

[0038] The elongated belt structure 4 is fixedly connected to the lower enclosure rod 2 and is located inside the lower enclosure rod 2;

[0039] The upper enclosure rod 5 is fixedly connected to the detachable bellows 1. The upper enclosure rod 5 is located on the upper surface of the detachable bellows 1. The upper enclosure rod 5 has the same internal structure as the lower enclosure rod 2. It can be disassembled and installed with the lower enclosure rod 2 to form a whole for combined use or disassembled with the lower enclosure rod 2 to be used as two separate individuals.

[0040] The telescopic scraping mechanism 6 is fixedly connected to the lower enclosure rod 2. The telescopic scraping mechanism 6 is located inside the lower enclosure rod 2 and can easily scrape off larger dirt impurities on the outer surface of the insert 63 for easy cleaning.

[0041] Furthermore, the telescopic scraping mechanism 6 includes a first sleeve 62, which is sleeved on the inside of the lower guardrail rod 2. A limiting groove 61 is provided inside the lower guardrail rod 2. A card block is fixedly connected to the first sleeve 62 and is stuck in the inside of the limiting groove 61. An insert block 63 is fixedly connected to the lower surface of the first sleeve 62. A spring 64 is fixedly connected to the inside of the first sleeve 62. The end of the spring 64 away from the first sleeve 62 is fixedly connected to the inside of the lower guardrail rod 2. The spring 64 can be stretched under the action of external force. After stretching, it drives the first sleeve 62 to move back and forth through its own rebound force to clean up larger dirt impurities on the outer surface.

[0042] Furthermore, the elongated belt structure 4 includes a first rotating column 41, which is rotatably connected to the inside of the lower guardrail 2. The outer wall of the first rotating column 41 is fixedly connected to a cloth belt 42, which is rolled up on the outer wall of the first rotating column 41. The end of the cloth belt 42 away from the first rotating column 41 is fixedly connected to a connecting column 44, and the outer wall of the connecting column 44 is fixedly connected to a hook 43. The upper guardrail 5 and the lower guardrail 2 are formed into a whole through the elongated cloth belt 42 to perform the enclosing function, and are fixed by hanging the hook 43 on the hanging ring 21. The installation and construction are fast, which brings convenience to people.

[0043] Furthermore, a slot is provided on the lower guardrail 2 for pulling out the cloth belt 42, a hanging ring 21 is fixedly connected to the outer wall of the lower guardrail 2, and an equal hanging ring 21 is fixedly connected to the upper guardrail 5. When the cloth belt 42 is pulled out, it is fixed by hanging the hook 43 on the hanging ring 21 on the upper guardrail 5.

[0044] Furthermore, the scraping support block 3 includes a support ring 31 and an adjusting plug 32. The support ring 31 is fixedly connected to the lower surface of the lower enclosure rod 2. The lower surface of the support ring 31 is fixedly connected to a plurality of adjusting plugs 32. The adjusting plug 32 includes a connecting block 321. The upper surface of the connecting block 321 is fixedly connected to the lower surface of the support ring 31. A fixing button 322 is passed through the interior of the connecting block 321. The interior of the connecting block 321 is rotatably connected to a second rotating column 323. The second rotating column 323 is provided with a fixed button 322. The matching slots, the fixing button 322 passes through the slots on the second rotating column 323, and the second rotating column 323 is rotatably connected to the fixing button 322 through the slots. The lower end of the second rotating column 323 is a pointed cone, and a rotatable adjustment column 32 is provided on the lower surface of the scraping support block 3. When people are installing and using it, they can vertically rotate the second rotating column 323. When the lower guardrail 2 is inserted into the soil, the second rotating column 323 is also inserted into the surface of the soil, so as to better stabilize the structure.

[0045] A construction method for a double-row pile foundation pit retaining structure, the construction steps comprising:

[0046] S1: Take out the structure and place it at the location where it is to be placed. The user steps on the upper surface of the scraping support block 3 with his feet;

[0047] S2: Press the insert 63 into the soil to fix the lower enclosure rod 2;

[0048] S3: Stretch and pull out the detachable corrugated pipe 1, insert the upper enclosure rod 5 upside down on the soil, and use the same method to insert the upper enclosure rod 5 upside down into the soil to fix it;

[0049] S4: The user pulls out the connecting post 44, extends the cloth belt 42, extends it to the outer wall of the upper enclosure bar 5, and hangs the hook 43 on the hanging ring 21 fixed on the upper enclosure bar 5 to secure it;

[0050] S5: Check the stability of the structure, place loose parts, complete the construction and installation of one group of structures, and install the next group of structures using the same construction steps.

[0051] The working principle and use process of the present invention:

[0052] When inserting the lower guardrail 2 into the soil, people step on the scraping support block 3 and insert the insert block 63 into the soil for fixing. Under the action of people's force, the spring 64 stretches back and forth. When the insert block 63 is completely inserted into the soil, the internal spring 64 is in an extended state, pushing the lower guardrail 2 to rise. When people take out the lower guardrail 2, they pull the lower guardrail 2 out of the soil with force. At this time, the outer surface of the first sleeve 62 will be stained with soil. When people hold the lower guardrail 2 When the first sleeve 62 is pulled out with force, the plug block 63 is stretched. When the plug block 63 is completely pulled out of the soil, the spring 64 will rebound back and forth under the action of the force until the force disappears. When the spring 64 reciprocates, it drives the first sleeve 62 to scrape back and forth on the scraping support block 3 to scrape off larger pieces of soil on the outer surface of the first sleeve 62. The soil on the outer surface is automatically scraped off, reducing people's subsequent cleaning of the lower guardrail 2. It is easy to use and brings convenience to people.

[0053] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0054] While embodiments of the present invention have been shown and described, it will be appreciated 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 invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A double-row pile foundation pit retaining structure, characterized by: It comprises a lower enclosure rod (2), the interior of the lower enclosure rod (2) being hollow; A detachable bellows (1), the detachable bellows (1) being fixedly mounted on the lower enclosure rod (2), the detachable bellows (1) being located on the upper surface of the lower enclosure rod (2); A scraping support block (3), the scraping support block (3) is fixedly connected to the lower enclosure rod (2), and the scraping support block (3) is located on the outer wall of the lower end of the lower enclosure rod (2); An elongated belt structure (4), the elongated belt structure (4) being fixedly connected to the lower enclosure rod (2), and the elongated belt structure (4) being located inside the lower enclosure rod (2); An upper enclosure rod (5), the upper enclosure rod (5) being fixedly connected to the detachable bellows (1), the upper enclosure rod (5) being located on the upper surface of the detachable bellows (1), and the internal structure of the upper enclosure rod (5) being equal to that of the lower enclosure rod (2); A telescopic scraping mechanism (6) is fixedly connected to the lower enclosure rod (2), and the telescopic scraping mechanism (6) is located inside the lower enclosure rod (2).

2. The double-row pile foundation pit retaining structure according to claim 1, characterized in that: The telescopic scraping mechanism (6) comprises a first sleeve (62), the first sleeve (62) being sleeved inside the lower enclosure rod (2), a limiting groove (61) being provided inside the lower enclosure rod (2), and a clamping block being fixedly connected to the first sleeve (62) and clamped inside the limiting groove (61).

3. The double-row pile foundation pit retaining structure according to claim 2, characterized in that: The lower surface of the first sleeve (62) is fixedly connected to an insert block (63), the interior of the first sleeve (62) is fixedly connected to a spring (64), and one end of the spring (64) away from the first sleeve (62) is fixedly connected to the interior of the lower enclosure rod (2).

4. The double-row pile foundation pit retaining structure according to claim 3, characterized in that: The stretching belt structure (4) comprises a first rotating column (41), the first rotating column (41) being rotatably connected to the interior of the lower enclosure rod (2), the outer wall of the first rotating column (41) being fixedly connected to a cloth belt (42), and the cloth belt (42) being rolled up on the outer wall of the first rotating column (41).

5. The double-row pile foundation pit retaining structure according to claim 4, characterized in that: One end of the cloth belt (42) away from the first rotating column (41) is fixedly connected to a connecting column (44), and an outer wall of the connecting column (44) is fixedly connected to a hook (43).

6. The double-row pile foundation pit retaining structure according to claim 5, characterized in that: The lower enclosure rod (2) is provided with a slot for pulling out the cloth belt (42), the outer wall of the lower enclosure rod (2) is fixedly connected to a hanging ring (21), and the upper enclosure rod (5) is fixedly connected to an equal hanging ring (21), and when the cloth belt (42) is pulled out, it is fixed by hanging the hook (43) on the hanging ring (21) on the upper enclosure rod (5).

7. The double-row pile foundation pit retaining structure according to claim 6, characterized in that: The scraping support block (3) comprises a support ring (31) and adjustment plugs (32); the support ring (31) is fixedly connected to the lower surface of the lower enclosure rod (2); and a plurality of adjustment plugs (32) are fixedly connected to the lower surface of the support ring (31).

8. The double-row pile foundation pit retaining structure according to claim 7, characterized in that: The adjusting plug (32) comprises a connecting block (321), the upper surface of the connecting block (321) is fixedly connected to the lower surface of the supporting ring (31), a fixing button (322) is passed through the interior of the connecting block (321), and a second rotating column (323) is rotatably connected to the interior of the connecting block (321).

9. The double-row pile foundation pit retaining structure according to claim 8, characterized in that: The second rotating column (323) is provided with a slotted hole matching the fixing button (322), the fixing button (322) passes through the slotted hole on the second rotating column (323), the second rotating column (323) is rotatably connected to the fixing button (322) through the slotted hole, and the lower end of the second rotating column (323) is in a pointed cone shape.

10. A construction method for a double-row pile foundation pit retaining structure according to claim 9, characterized in that: The construction steps include: S1: Take out the structure and place it at the location where it is to be placed. The user steps on the upper surface of the scraping support block (3) with his feet; S2: pressing the insert (63) into the soil to fix the lower enclosure rod (2); S3: Stretch and pull out the detachable corrugated pipe (1), insert the upper enclosure rod (5) upside down on the soil, and use the same method to insert the upper enclosure rod (5) upside down into the soil for fixing; S4: The user pulls out the connecting column (44), stretches the cloth belt (42), stretches it to the outer wall of the upper enclosure rod (5), and hangs the hook (43) on the hanging ring (21) fixed on the upper enclosure rod (5) to fix it; S5: Check the stability of the structure, place loose parts, complete the construction and installation of one group of structures, and install the next group of structures using the same construction steps.

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