Prestressed steel-concrete support rod for foundation pit protection

Abstract

The present invention relates to the field of building technology, and specifically to a prestressed steel-framed concrete support rod for foundation pit enclosure, comprising a support rod main body, wherein the support rod main body comprises an embedded rod and a surface rod, and also comprises an adjustment mechanism, which is arranged between the embedded rod and the surface rod, and the adjustment mechanism comprises two groups of adjustment structures, each group of adjustment structures comprises two adjustment sleeves, and the inner walls of one group of two adjustment sleeves are slidably connected with an adjustment rod. The present invention is provided with an adjustment sleeve, an adjustment rod, a fixed rod and a threaded sleeve, and a design in which the adjustment sleeve and the adjustment rod are penetrated and fixed by the fixed rod, and a plurality of points of the fixing hole are matched, so that the length of the adjustment rod in the adjustment sleeve can be adjusted. Compared with the prior art, the adjustment process of the present invention is simpler, and the structure is simple, and the actual use cost is low. At the same time, the present invention can directly carry out concrete pouring when needed in the later stage, and can also be disassembled and spliced ​​for multiple times if pouring is not required.

Description

Technical Field

[0001] The invention relates to the technical field of construction, in particular to a prestressed steel-framed concrete support rod for foundation pit enclosure. Background Art

[0002] At present, concrete rods are used for protection of foundation pits. Generally, after steel frames are assembled, it is determined whether concrete needs to be poured according to actual conditions. For example, a prestressed support rod for foundation pit protection disclosed in Publication No. CN212294684U includes a support seat, a telescopic seat, a support pipe, a connecting flange, a wedge and a jack. The utility model adopts a basic structure of decomposing the prestressed support rod into a support seat, a telescopic seat, a support pipe and a connecting flange, and conveniently assembling the basic structure into a telescopic pipe, an intermediate connecting pipe and an anchor connecting pipe. The support seat is combined with the telescopic pipe, and the wedge and the jack are used to form a prestressed section of the support rod. The telescopic pipe is combined with one or more intermediate connecting pipes to form a length adjustment section of the support rod. The intermediate connecting pipe is combined with the anchor connecting pipe to form an anchor section formed by inserting the support rod below the bottom of the foundation pit and reinforcing it with grouting.

[0003] Although the above-mentioned steel frame support can be fine-tuned in height by a jack, in actual use, the use of a large number of supports will undoubtedly increase a lot of support costs. At the same time, it is also difficult to pour concrete on the skeleton later, and there is still a certain inconvenience in actual use. Therefore, it is necessary to design a prestressed steel frame concrete support rod for foundation pit protection to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a prestressed steel-concrete support rod for foundation pit enclosure to solve the problems raised in the above-mentioned background technology.

[0005] The technical solution of the present invention is: a prestressed steel frame concrete support rod for foundation pit enclosure, comprising a support rod body, wherein the support rod body comprises an embedded rod and a surface rod, and further comprises:

[0006] An adjustment mechanism is arranged between the embedded rod and the surface rod, and the adjustment mechanism includes two groups of adjustment structures, each group of adjustment structures includes two adjustment sleeves, and the inner walls of one group of two adjustment sleeves are slidably connected with an adjustment rod;

[0007] Two groups of auxiliary stabilizing mechanisms are arranged at both ends of the embedded rod. The auxiliary stabilizing mechanism comprises an auxiliary stabilizing frame fixed to the outer wall of one end of the embedded rod, and an auxiliary stabilizing plate is connected to the auxiliary stabilizing frame through a torsion shaft.

[0008] Preferably, the embedded rod portion is embedded underground, and the surface rod is exposed on the surface.

[0009] Preferably, the two adjusting sleeves are each provided with a fixing sleeve, the adjusting rod is evenly provided with fixing holes, and the two fixing sleeves are each inserted with a fixing rod.

[0010] Preferably, the fixing rods slide on the inner wall of the fixing hole, opposite threads are formed at both ends of the two fixing rods, and threaded sleeves are rotatably connected at both ends of the two fixing rods.

[0011] Preferably, both ends of the two fixing rods are movably sleeved with rubber sleeves, and the shape of the rubber sleeves is spherical.

[0012] Preferably, an outer wall on one side of the surface rod is connected to a support head by bolts, an observation port is opened on the outer wall at one end of the two adjustment sleeves, and a scale line is marked on the outer wall at one end of the adjustment rod close to the observation port.

[0013] Preferably, the outer wall at one end of the auxiliary stabilizing plate is connected with equidistantly distributed auxiliary stabilizing teeth, the outer wall on one side of the auxiliary stabilizing plate close to the embedded rod is connected with a magnetic plate and a limit bar, and the magnetic plate is located between the limit bar and the embedded rod.

[0014] The present invention provides a prestressed steel-framed concrete support rod for foundation pit enclosure by improvement, which has the following improvements and advantages compared with the prior art:

[0015] First, the present invention is provided with an adjusting sleeve, an adjusting rod, a fixing rod and a threaded sleeve. The fixing rod can penetrate and fix the adjusting sleeve and the adjusting rod. With the multiple points of the fixing hole, the length of the adjusting rod in the adjusting sleeve can be adjusted. Compared with the prior art, the adjustment process of the device is simpler, the structure is simple, and the actual use cost is low. At the same time, the device can be directly poured with concrete when needed in the later stage. If it is not poured, it can be disassembled and spliced ​​for multiple times;

[0016] Second, the present invention is provided with an auxiliary stabilizing frame, an auxiliary stabilizing plate and auxiliary stabilizing teeth. The auxiliary stabilizing plate and auxiliary stabilizing teeth can increase the stabilizing effect when the surface pole is pre-buried, and the auxiliary stabilizing plate can be flipped to reduce the impact on the staff in the non-working state. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments:

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 It is a schematic diagram of the assembly structure of the present invention;

[0020] Figure 3 It is a schematic diagram of the structure of the regulating mechanism of the present invention;

[0021] Figure 4 It is a structural schematic diagram of the auxiliary stabilizing mechanism of the present invention.

[0022] Description of reference numerals:

[0023] 1. Support rod body; 110. Embedded rod; 111. Surface rod; 112. Support head; 2. Adjustment mechanism; 210. Adjustment sleeve; 211. Adjustment rod; 212. Fixing sleeve; 213. Fixing hole; 214. Fixing rod; 215. Threaded sleeve; 216. Observation port; 217. Rubber sleeve; 3. Auxiliary stabilization mechanism; 310. Auxiliary stabilization frame; 311. Auxiliary stabilization plate; 312. Auxiliary stabilization teeth; 313. Magnetic plate; 314. Limiting strip. DETAILED DESCRIPTION

[0024] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. 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 creative work are within the scope of protection of the present invention.

[0025] The present invention provides a prestressed steel-framed concrete support rod for foundation pit enclosure through improvement. The technical solution of the present invention is:

[0026] like Figure 1-Figure 4 As shown, a prestressed steel-framed concrete support rod for foundation pit enclosure includes a support rod body 1, the support rod body 1 includes an embedded rod 110 and a surface rod 111, and also includes:

[0027] The adjusting mechanism 2 is arranged between the embedded rod 110 and the surface rod 111. The adjusting mechanism 2 includes two groups of adjusting structures. Each group of adjusting structures includes two adjusting sleeves 210. The inner walls of a group of two adjusting sleeves 210 are slidably connected with an adjusting rod 211.

[0028] Two groups of auxiliary stabilizing mechanisms 3 are arranged at both ends of the embedded rod 110. The auxiliary stabilizing mechanism 3 includes an auxiliary stabilizing frame 310 fixed to the outer wall of one end of the embedded rod 110, and an auxiliary stabilizing plate 311 is connected to the auxiliary stabilizing frame 310 through a torsion shaft.

[0029] Furthermore, the embedded rod 110 is partially embedded underground, and the surface rod 111 is exposed on the surface.

[0030] Furthermore, the two adjusting sleeves 210 are each provided with a fixing sleeve 212, the adjusting rod 211 is evenly provided with fixing holes 213, and the two fixing sleeves 212 are each inserted with a fixing rod 214. The fixing rod 214 is used to penetrate and fix the adjusting sleeve 210 and the adjusting rod 211, and the multiple points of the fixing hole 213 are combined to make the length of the adjusting rod 211 in the adjusting sleeve 210 adjustable. Compared with the prior art, the adjustment process of the device is simpler, the structure is simple, and the actual use cost is lower. At the same time, the device can be directly poured with concrete when needed in the later stage, and can be disassembled and spliced ​​for multiple times if not poured.

[0031] Furthermore, the fixing rods 214 slide on the inner wall of the fixing holes 213 , opposite threads are formed at both ends of the two fixing rods 214 , and threaded sleeves 215 are rotatably connected at both ends of the two fixing rods 214 through threads.

[0032] Furthermore, both ends of the two fixing rods 214 are movably sleeved with rubber sleeves 217 , and the shape of the rubber sleeves 217 is spherical, so that the end positions of the fixing rods 214 and the staff can be protected by the rubber sleeves 217 .

[0033] Furthermore, one side outer wall of the surface rod 111 is connected to the support head 112 by bolts, and one end outer wall of the two adjustment sleeves 210 is provided with an observation port 216. The outer wall of the end of the adjustment rod 211 close to the observation port 216 is marked with scale lines. The supporting end of the support head 112 is a plane or an inclined plane, which is used for vertical support and oblique support respectively. The setting of the scale lines facilitates the staff to determine the actual adjustment distance.

[0034] Furthermore, the outer wall of one end of the auxiliary stabilizing plate 311 is connected to auxiliary stabilizing teeth 312 distributed at equal distances, and the outer wall of the side of the auxiliary stabilizing plate 311 close to the embedded rod 110 is connected to a magnetic plate 313 and a limiting strip 314, and the magnetic plate 313 is located between the limiting strip 314 and the embedded rod 110. The auxiliary stabilizing plate 311 and the auxiliary stabilizing teeth 312 can increase the stability effect of the surface rod 111 when it is embedded, and the auxiliary stabilizing plate 311 can be flipped over to reduce the impact on the staff in the non-working state. In this way, the magnetic limit between the magnetic plate 313 and the embedded rod 110 is used to make the auxiliary stabilizing plate 311 stably placed in the non-working state.

[0035] Working principle: When in use, first adjust the length of the adjusting rod 211 in the two adjusting sleeves 210 to a suitable position, then pass the fixing rod 214 through the fixing sleeve 212 and the fixing hole 213, and then use the threaded sleeve 215 to fix the fixing rod 214 and put the rubber sleeve 217 on the end of the fixing rod 214, finally, assemble and assemble the embedded rod 110, the adjusting sleeve 210, the surface rod 111 and the supporting head 112 in sequence and lift them up in an inclined or vertical shape. When embedding, the auxiliary stabilizing plate 311 and the auxiliary stabilizing tooth 312 can be turned over so that the auxiliary stabilizing plate 311 and the embedded rod 110 are in a vertical state.

Claims

1. A prestressed steel-concrete support rod for foundation pit protection, comprising a support rod body (1), characterized in that: The support rod body (1) comprises a pre-buried rod (110) and a surface rod (111), and the support rod body (1) further comprises: An adjustment mechanism (2) is arranged between the embedded rod (110) and the surface rod (111), the adjustment mechanism (2) comprising two groups of adjustment structures, each group of adjustment structures comprising two adjustment sleeves (210), and the inner walls of one group of two adjustment sleeves (210) are slidably connected to an adjustment rod (211); Two sets of auxiliary stabilization mechanisms (3) are arranged at both ends of the embedded rod (110), the auxiliary stabilization mechanism (3) comprising an auxiliary stabilization frame (310) fixed to the outer wall of one end of the embedded rod (110), and an auxiliary stabilization plate (311) is connected to the auxiliary stabilization frame (310) via a torsion shaft; The embedded rod (110) is partially embedded underground, and the surface rod (111) is exposed on the surface; The two adjusting sleeves (210) are each provided with a fixing sleeve (212), the adjusting rod (211) is evenly provided with fixing holes (213), and the two fixing sleeves (212) are each inserted with a fixing rod (214); The fixing rods (214) slide on the inner wall of the fixing hole (213), and opposite threads are formed at both ends of the two fixing rods (214). Both ends of the two fixing rods (214) are rotatably connected to threaded sleeves (215) through threads. Both ends of the two fixing rods (214) are movably sleeved with rubber sleeves (217), and the shape of the rubber sleeves (217) is spherical; The outer wall of one side of the surface rod (111) is connected to a support head (112) via bolts, an observation port (216) is provided on the outer wall of one end of each of the two adjustment sleeves (210), and a scale line is marked on the outer wall of one end of the adjustment rod (211) close to the observation port (216); An outer wall at one end of the auxiliary stabilizing plate (311) is connected to auxiliary stabilizing teeth (312) distributed at equal distances, and an outer wall at one side of the auxiliary stabilizing plate (311) close to the embedded rod (110) is connected to a magnetic plate (313) and a limiting strip (314), wherein the magnetic plate (313) is located between the limiting strip (314) and the embedded rod (110).

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