Force transmission belt device at separation position of adjacent foundation pit row piles

Abstract

A force transmission belt device at the separation position of adjacent foundation pit row piles comprises a main body structure with one end connected with the row piles and the other end connected with the side end of a frame beam in a foundation pit. The main body structure comprises an embedded steel bar arranged in the frame beam, a supporting frame detachably connected with the embedded steel bar, and a connecting cylinder arranged at the end, away from the embedded steel bar, of the supporting frame and used for being connected with the side end of the row pile. According to the force transmission belt device, the situation that an old force transmission belt needs to be completely cut off when the row piles are dismantled is avoided, the shape of residues can be regular and controllable, the old force transmission belt can be directly reused to serve as a new force transmission belt after the row piles are dismantled, work efficiency is greatly improved, and potential safety hazards are overcome.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and in particular relates to a force transmission belt device at a separation point of adjacent foundation pit piles. Background Art

[0002] During the construction of deep foundation pits, rows of piles are often used to separate the different pits. After the piles are removed, the area where the post-cast joints are located becomes the location. Traditionally, the load-transmitting belts in structural beams and slabs are constructed by wrapping the piles with concrete to transmit the load. After the basement structures on both sides of the piles are completed, the piles need to be removed. However, removing the piles can easily damage the reinforcement and the main structure.

[0003] Prior art, such as the document with authorization announcement number CN220166942U, discloses a frame beam force transmission belt structure at the pile separation piles in the construction of a large-scale group pit, including separation piles fixedly installed between adjacent foundation pits, and multiple steel support force transmission belts are fixedly installed on both sides of the separation piles along the width direction corresponding to the frame beams in the foundation pits, and the ends of the multiple steel support force transmission belts away from the separation piles are respectively fixedly connected to the frame beams in the two adjacent foundation pits.

[0004] The working principle of the above structure is: after the piles are laid, the steel support force transmission belt is installed by pre-embedding. After the construction is completed, the piles are chiseled out and the steel support force transmission belt is cut off at the same time. Finally, the post-cast belt is formed by tying the frame beam and slab steel bars.

[0005] However, the device still has the following problems: residues are easily generated when the steel support force transmission belt is cut off, and the residues are likely to interfere with the subsequent binding of steel bars and easily cut construction workers, resulting in construction difficulties and safety hazards. Utility Model Content

[0006] In response to the above-mentioned problems, the purpose of the utility model is to provide a force transmission belt device at the separation point of adjacent foundation pit pile rows, which avoids the situation where the old force transmission belt needs to be completely cut off when the pile rows are removed, and the shape of the residue can be regular and controllable. After the pile rows are removed, the old force transmission belt can be directly reused as a new force transmission belt, which greatly improves work efficiency and overcomes safety hazards.

[0007] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0008] A force transmission belt device at the separation point of adjacent foundation pit pile rows includes a main structure connected to the pile row at one end and connected to the side end of a frame beam in the foundation pit at the other end. The main structure includes embedded steel bars arranged in the frame beam, a support frame detachably connected to the embedded steel bars, and a connecting tube arranged at the end of the support frame away from the embedded steel bars and used to connect to the side end of the pile row.

[0009] As a further preferred embodiment of the present invention, the connecting tube includes a tube body with an opening facing away from the support frame, and a sealing plate provided at the end of the tube body for closing the opening of the tube body and fixedly connected to the side end of the pile row.

[0010] As a further preference of the present invention, the two main structures installed on two adjacent frame beams are connected by a connecting structure after the pile rows are removed. The connecting structure includes two main rods respectively installed in the openings of the two cylinders, and a connecting piece for connecting the two main rods.

[0011] As a further preferred embodiment of the present invention, the connecting member includes a fixing tube provided on one end of the main body rod, and a connecting rod provided on the other end of the main body rod and inserted into the fixing tube.

[0012] As a further preferred embodiment of the present invention, the inner wall of the fixing cylinder is provided with an internal thread, the connecting rod is provided with an external thread section adapted to the internal thread, and the connecting member further includes a fastening nut provided on the external thread section.

[0013] As a further preferred embodiment of the present invention, a cutting ring groove is provided at the connection between the sealing plate and the cylinder.

[0014] As a further preference of the present invention, the support frame includes a support plate, a first wing plate and a second wing plate arranged at both ends of the support plate, a first connecting hole arranged on the first wing plate and used for the embedded steel bar to pass through, and a first connecting nut screwed to the embedded steel bar for fixing the first wing plate.

[0015] As a further preferred embodiment of the present invention, the support frame also includes a corner plate arranged at the connection between the support plate and the first wing plate, a second connection hole arranged on the corner plate and matching the first connection hole for passing the embedded steel bars, a third connection hole arranged on the support plate, a fourth connection hole arranged on the corner plate and matching the third connection hole, and connecting bolts respectively passing through the third connection hole and the fourth connection hole for connecting the corner plate and the support plate.

[0016] As a further preferred embodiment of the present invention, the support frame further includes a second connecting hole provided on the second wing plate and located outside the connecting tube.

[0017] As a further preferred embodiment of the present invention, the two second wing plates on two adjacent main structures are connected by connecting steel bars, both ends of the connecting steel bars pass through the two second connecting holes respectively, and fastening nuts are screwed on the ends of the connecting steel bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Attachment Figure 1 This is a schematic diagram of the position structure of the utility model.

[0019] Attachment Figure 2 This is a schematic diagram of the structure of the utility model connected with a row of piles.

[0020] Attachment Figure 3 This is a schematic diagram of the connection structure of the utility model after the pile rows are removed.

[0021] Attachment Figure 4 This is a schematic diagram of the connection structure of the utility model from a top view.

[0022] Description of the drawings: pile rows 100, frame beams 110;

[0023] Embedded steel bars 200, support frame 210, connecting tube 220;

[0024] Support plate 211, first wing plate 212, second wing plate 213, first connection hole 214, first connection nut 215, angle plate 216, connection bolt 217, second connection hole 218, connection steel bar 219;

[0025] Cylinder 221, sealing plate 222;

[0026] Main rod 310 , connecting piece 320 , fixing tube 321 , connecting rod 322 , fastening nut 323 . DETAILED DESCRIPTION

[0027] In the description of the present utility model, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use, or are directions or positional relationships commonly understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present utility model.

[0028] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, terms such as "disposed" and "connected" should be understood broadly. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0029] Example 1

[0030] The present invention provides a force transmission belt device at the separation point of adjacent foundation pit pile rows, including a main structure connected to the pile row 100 at one end and connected to the side end of the frame beam 110 in the foundation pit at the other end. The main structure includes embedded steel bars 200 arranged in the frame beam 110, a support frame 210 detachably connected to the embedded steel bars 200, and a connecting tube 220 arranged on the end of the support frame 210 away from the embedded steel bars 200 and used to be connected to the side end of the pile row 100.

[0031] It can be understood that the frame beam can be multiple parallel distributed beams, or it can be a floor slab after casting. There are multiple main structures, which are installed in parallel between the piles and the frame beams at a certain interval to form a force transmission belt.

[0032] In this embodiment, the support frame 210 includes a support plate 211, a first wing plate 212 and a second wing plate 213 disposed at each end of the support plate 211, a first connection hole 214 disposed on the first wing plate 212 for passing the embedded steel bar 200, and a first connection nut 215 threadedly engaged with the embedded steel bar 200 to secure the first wing plate 212. The H-shaped structure formed by the connection between the support plate and the two wing plates constitutes the main structure of the support frame. The embedded steel bar protrudes from the end of the frame beam. During installation of the support frame, the first connection nut can be used to connect the end of the support frame to the frame beam. The other end of the support frame can be directly connected to the pile row by welding or other commonly used fixing methods.

[0033] The construction method of the power transmission belt device provided in this embodiment includes:

[0034] The force transmission belt device is installed after the pile rows and the adjacent frame beams are cast in the foundation pit. The connection between the main structure and the pile rows (all or part of the connecting tube) is cut away as the pile rows are removed. Once the pile rows are removed, the main structures on the two remaining frame beams can be directly connected at breakpoints using rebar. After the connection, cast concrete is then poured to form a closed force transmission belt integrated with the frame beam.

[0035] Compared with the prior art, the power transmission belt device provided in this embodiment has the following advantages:

[0036] It avoids the need to completely cut off the old power transmission belt when removing the piles, and the shape of the residue can be regular and controllable. After the piles are removed, the old power transmission belt can be directly reused as a new power transmission belt, which greatly improves work efficiency and overcomes safety hazards.

[0037] Example 2

[0038] This embodiment optimizes the structure based on the embodiment 1, as follows:

[0039] The connecting tube 220 includes a body 221 with an opening facing away from the support frame 210, and a sealing plate 222 disposed at the end of the body 221 to seal the opening and fixedly connected to the side of the pile row 100. After the pile row 100 is removed, the two main structures mounted on two adjacent frame beams 110 are connected via a connecting structure. The connecting structure includes two main rods 310, respectively mounted within the openings of the two bodies 221, and a connecting member 320 for connecting the two main rods 310. Furthermore, a cutting ring groove is provided at the connection between the sealing plate 222 and the body 221.

[0040] As a further preferred embodiment of this embodiment, the connecting member 320 includes a fixing cylinder 321 disposed at the end of one of the main rods 310, and a connecting rod 322 disposed at the end of the other main rod 310 and inserted into the fixing cylinder 321. Furthermore, the fixing cylinder 321 has an internal thread on its inner wall, and the connecting rod 322 has an external thread section that matches the internal thread. The connecting member 320 also includes a fastening nut 323 disposed on the external thread section.

[0041] The working principle of the optimization structure provided in this embodiment includes:

[0042] When it is used as the old force transmission belt, the part directly connected to the pile row is the closing plate 222; when the pile row is removed, the cutting position is at the connection between the closing plate 222 and the cylinder 221 (cutting the ring groove) to ensure that the remaining part is regular and controllable. At this time, the closing plate 222 disappears and the opening of the cylinder 221 is exposed; when connecting the two main structures to cast a new force transmission belt, it is only necessary to connect the connecting rod 322 and the fixed cylinder 321 to complete the breakpoint connection of the two main structures. This method replaces the traditional binding of steel bars.

[0043] Compared with other technical solutions, the device provided in this embodiment has the following advantages: it further improves the positioning effect of the cutting position when the power transmission belt is cut, ensuring the regularity of the structure after cutting; it also replaces the traditional method of tying steel bars when connecting the breakpoints, greatly improving work efficiency.

[0044] Example 3

[0045] This embodiment optimizes the structure based on embodiment 1 or embodiment 2, specifically as follows:

[0046] The support frame 210 also includes an angle plate 216 arranged at the connection between the support plate 211 and the first wing plate 212, a second connection hole arranged on the angle plate 216 and matching the first connection hole 214 for passing the embedded steel bar 200, a third connection hole arranged on the support plate 211, a fourth connection hole arranged on the angle plate 216 and matching the third connection hole, and connecting bolts 217 respectively passing through the third connection hole and the fourth connection hole for connecting the angle plate 216 and the support plate 211.

[0047] As a further preferred embodiment of this embodiment, the support frame 210 further includes a second connection hole 218 provided on the second wing plate 213 and located outside the connection tube 220. The two second wing plates 213 on two adjacent main structures are connected by a connecting steel bar 219, the ends of which respectively pass through the two second connection holes 218, and the ends of the connecting steel bars 219 are screwed with fastening nuts.

[0048] Compared to other technical solutions, the device provided by this embodiment has the following advantages: first, it strengthens the connection strength between the main structure and the frame beam; second, it further strengthens the connection strength between the two main structures. Ultimately, the cast new force transmission belt structure has the advantages of high structural strength and strong integrity.

[0049] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A force transmission belt device for separating adjacent foundation pit pile rows, comprising a main structure having one end connected to the pile row (100) and the other end connected to the side end of a frame beam (110) in the foundation pit, characterized in that: The main structure comprises embedded steel bars (200) arranged in the frame beam (110), a support frame (210) detachably connected to the embedded steel bars (200), and a connecting tube (220) arranged at an end of the support frame (210) away from the embedded steel bars (200) and used to be connected to the side end of the pile row (100); the connecting tube (220) comprises a cylinder (221) with an opening facing away from the support frame (210), and a sealing plate (222) arranged at an end of the cylinder (221) for closing the opening of the cylinder (221) and fixedly connected to the side end of the pile row (100).

2. A force transmission belt device for separating adjacent foundation pit piles according to claim 1, characterized in that: The two main structures installed on two adjacent frame beams (110) are connected via a connecting structure after the pile row (100) is removed. The connecting structure comprises two main rods (310) respectively installed in the openings of the two cylinders (221), and a connecting piece (320) for connecting the two main rods (310).

3. A force transmission belt device for separating adjacent foundation pit piles according to claim 2, characterized in that: The connecting member (320) comprises a fixing cylinder (321) provided on the end of one main body rod (310), and a connecting rod (322) provided on the end of the other main body rod (310) and inserted into the fixing cylinder (321).

4. A force transmission belt device for separating adjacent foundation pit piles according to claim 3, characterized in that: The inner wall of the fixing cylinder (321) has an internal thread, the connecting rod (322) is provided with an external thread segment adapted to the internal thread, and the connecting member (320) further includes a fastening nut (323) provided on the external thread segment.

5. The force transmission belt device for separating adjacent foundation pit piles according to claim 1, characterized in that: A cutting ring groove is provided at the connection between the sealing plate (222) and the cylinder (221).

6. The force transmission belt device for separating adjacent foundation pit piles according to claim 1, characterized in that: The support frame (210) comprises a support plate (211), a first wing plate (212) and a second wing plate (213) provided at both ends of the support plate (211), a first connection hole (214) provided on the first wing plate (212) and used for passing the embedded steel bar (200), and a first connection nut (215) screwed to the embedded steel bar (200) for fixing the first wing plate (212).

7. A force transmission belt device for separating adjacent foundation pit piles according to claim 6, characterized in that: The support frame (210) further comprises a corner plate (216) provided at a connection between the support plate (211) and the first wing plate (212), a second connection hole provided on the corner plate (216) and matching the first connection hole (214) for passing the embedded steel bar (200), a third connection hole provided on the support plate (211), a fourth connection hole provided on the corner plate (216) and matching the third connection hole, and connection bolts (217) respectively passing through the third connection hole and the fourth connection hole for connecting the corner plate (216) and the support plate (211).

8. The force transmission belt device for separating adjacent foundation pit piles according to claim 6, characterized in that: The support frame (210) further includes a second connection hole (218) provided on the second wing plate (213) and located outside the connection tube (220).

9. A force transmission belt device for separating adjacent foundation pit piles according to claim 8, characterized in that: The two second wing plates (213) on two adjacent main structures are connected via a connecting steel bar (219), both ends of the connecting steel bar (219) respectively pass through the two second connection holes (218), and a fastening nut is screwed onto the end of the connecting steel bar (219).

Images