Adjustable foundation pit enclosing purlin support

Abstract

The utility model relates to an adjustable foundation pit enclosing purlin support, which comprises a standard section support, at least one end of the standard section support is provided with an adjustable joint; the adjustable connector comprises a telescopic head and a fixed head, the fixed head is connected to the standard section supporting end, and the telescopic head limits the length of the telescopic head and the fixed head after the telescopic head and the fixed head are connected through a bolt. According to the adjustable foundation pit enclosing purlin support, the overall length of the support is adjusted by adjusting the connecting length of the telescopic head and the fixed head, and the adjustable foundation pit enclosing purlin support is used for adapting to the actually required supporting length of a foundation pit. The use of on-site electric welding machines and cutting machines is reduced on the whole, and the safety of on-site construction is improved; compared with traditional construction, steel cutting and steel welding are not needed, energy conservation and emission reduction are achieved, and low carbon and environmental protection are achieved; and repeated utilization rate of materials is high, and energy conservation and environmental protection are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to an adjustable foundation pit purlin support. Background Art

[0002] During the construction of rainwater and sewage projects in municipal road projects, since most pipeline construction sites are not well sloped, steel sheet pile support is required for pipeline foundation pit excavation to resist the lateral pressure of the soil. The purlins and cross supports are important components of the steel sheet pile support.

[0003] At present, the method for the horizontal support of the purlin is to locate the purlin and the purlin elevation baseline on site according to the cross-sectional size of the foundation pit, and then process the support, install the purlin and the horizontal support. The process includes welding and lengthening or cutting and shortening the steel, the construction process is cumbersome, the construction period is long, the work efficiency is low, the construction cost is high, and the materials cannot be reused to the maximum extent. Utility Model Content

[0004] In order to solve the above problems, the utility model adopts the following technical solutions: an adjustable foundation pit purlin support, comprising: a standard section support, at least one end of which is provided with an adjustable joint;

[0005] The adjustable joint comprises: an expansion head and a fixed head, wherein the fixed head is connected to the supporting end of the standard section, and the expansion head limits the length of the expansion head after being connected to the fixed head by bolts.

[0006] A further improvement is that a positioning hole is provided on the telescopic head, and a fixing hole corresponding to the position of the positioning hole is provided on the fixed head.

[0007] A further improvement is that the fixing hole is a waist-shaped hole.

[0008] A further improvement is that the positioning holes are multiple and arranged in a line along the telescopic direction of the telescopic head.

[0009] A further improvement is that the positioning holes are in two rows, and the fixing holes are two arranged in parallel.

[0010] The beneficial effects of the utility model are:

[0011] The adjustable foundation pit purlin support provided by the utility model can adjust the overall length of the support by adjusting the connection length of the telescopic head and the fixed head, so as to adapt to the actual length of the foundation pit that needs to be supported. The use of on-site electric welders and cutting machines is reduced as a whole, and the safety of on-site construction is improved; compared with traditional construction, there is no need to cut steel and weld steel, which saves energy and reduces emissions, is low-carbon and environmentally friendly; there is no need to cut steel or cross supports multiple times, the material reuse rate is high, and it is energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0013] Figure 1 It is a structural schematic diagram of the adjustable foundation pit purlin support of the utility model;

[0014] Figure 2 It is a schematic diagram of the telescopic head structure of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the fixed head of the utility model. DETAILED DESCRIPTION

[0016] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0017] In the description of the utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0018] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0019] In the utility model, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0020] like Figure 1As shown, the utility model provides an adjustable foundation pit purlin support, comprising: a standard section support 1, the standard section support 1 is made of I-beam, the length is a standard length, and at least one end of the standard section support 1 is welded and fixed with an adjustable joint 2;

[0021] The adjustable joint 2 includes: an expansion head 21 and a fixed head 22, the fixed head 22 is welded and fixed to the end of the standard section support 1, the fixed head 22 includes square steel and a base, the base is welded and fixed to the standard section support 1 to provide an installation position for the installation of the square steel, the square steel is welded and fixed to the base, the expansion head 21 is preferably square steel, which can be inserted into the fixed head 22, and a bolt hole is opened on the expansion head, and the length of the expansion head 21 after being connected to the fixed head 22 is limited by bolts, thereby realizing the adjustment of the overall length of the steel support.

[0022] The adjustable foundation pit purlin support provided by the utility model can adjust the overall length of the support by adjusting the connection length between the telescopic head and the fixed head, so as to adapt to the length of the foundation pit that actually needs to be supported. The whole can be prefabricated in advance in the factory or on site, and can be directly spliced ​​during the construction process. The production and installation are simple, which greatly improves the construction progress; the overall device reduces the use of on-site electric welders and cutting machines, and improves the safety of on-site construction; the overall device is simple to make and easy to operate, and does not require large machinery and equipment. Since the overall device is light in weight, it can be simply hoisted with an on-site excavator, which improves the utilization rate of machinery and saves construction costs more than other construction methods; compared with traditional construction, there is no need to cut steel and weld steel on site, which saves energy and reduces emissions, and is low-carbon and environmentally friendly; compared with traditional methods, there is no need to cut steel or cross supports multiple times, and the material reuse rate is high, which is energy-saving and environmentally friendly.

[0023] like Figure 2 and Figure 3 As shown, in order to adjust the length of the adjustable joint 2, the further improvement of the technical solution is that the length of the steel support is determined according to the cross-sectional size of the foundation pit, and then a positioning hole 23 is provided on the telescopic head 21, and a fixing hole 24 corresponding to the position of the positioning hole 23 is opened on the fixed head 22 under the condition that the overall length requirement of the steel support is met. When in use, part of the telescopic head 21 is inserted into the fixed head 22, and the positioning hole 23 corresponds to the fixing hole 24, and is fastened by bolts after being adjusted to the corresponding position. The fixing hole 24 is preferably a waist-shaped hole, which can realize stepless adjustment of the length of the adjustable joint 2. Of course, a plurality of through holes can also be used to achieve adjustment of the length of the adjustable joint 2.

[0024] In order to improve the convenience of adjusting the overall length of the steel support and improve its reusability to meet the requirements of different use lengths, the technical solution is further improved in that the fixing hole 24 is a waist-shaped hole, thereby realizing the arbitrary adjustment of the overall length of the adjustable joint 2.

[0025] In order to improve the connection strength between the telescopic head 21 and the fixed head 22 and avoid the movement of the connection, which causes the overall length of the steel support to change and thus loses its support significance, the technical solution is further improved in that the positioning holes 23 are arranged in a line along the telescopic direction of the telescopic head 21. In this way, when in use, the waist-shaped fixing hole 24 can cover multiple positioning holes 23, and the two are fixed by using bolts on each hole within the range of the waist-shaped fixing hole 24, thereby improving the connection strength between the telescopic head 21 and the fixed head 22.

[0026] In order to further improve the connection strength between the telescopic head 21 and the fixed head 22, the technical solution is further improved in that the positioning holes 23 are arranged in two parallel rows, and the fixing holes 24 are arranged in two parallel rows. When in use, the two rows of bolts are used for fixing to further improve the connection strength between the telescopic head 21 and the fixed head 22.

[0027] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An adjustable foundation pit purlin support, characterized in that: include: A standard section support, wherein at least one end of the standard section support is provided with an adjustable joint; The adjustable joint comprises: an expansion head and a fixed head, wherein the fixed head is connected to the supporting end of the standard section, and the expansion head limits the length of the expansion head after being connected to the fixed head by bolts.

2. The adjustable foundation pit purlin support according to claim 1 is characterized in that: The telescopic head is provided with a positioning hole, and the fixed head is provided with a fixing hole corresponding to the position of the positioning hole.

3. The adjustable foundation pit purlin support according to claim 2 is characterized in that: The fixing hole is a waist-shaped hole.

4. The adjustable foundation pit purlin support according to claim 3 is characterized in that: The positioning holes are multiple and are arranged in a line along the telescopic direction of the telescopic head.

5. The adjustable foundation pit purlin support according to claim 4 is characterized in that: The positioning holes are arranged in two rows, and the fixing holes are arranged in two parallel rows.

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