Center positioning device for pile casing

Abstract

The utility model provides a pile casing center positioning device which comprises at least two positioning arms, the positioning arms are transversely arranged, the positioning arms are sequentially arranged in the axial direction of a pile casing and connected together in a crossed mode, each positioning arm is provided with a positioning part and two limiting structures, and the transverse length of each positioning part is equal to the diameter of a center hole of the pile casing; the positioning part is used for being transversely arranged in a center hole of the pile casing, and the two limiting structures are arranged at the two transverse ends of the positioning part correspondingly and used for being connected with the casing wall of the pile casing. The center identification structure is located at the transverse center part of the positioning part or located over the transverse center part; and under the condition that all the limiting structures are connected with the wall of the pile casing, the positioning part is transversely arranged in the center hole of the pile casing, so that the center of the center identification structure coincides with the center of the center hole of the pile casing. The pile casing center positioning device can quickly position the center of a pile casing, and is simple and convenient to operate, time-saving, labor-saving, high in positioning precision, high in positioning efficiency, simple and practical in structure and low in cost.

Description

Technical Field

[0001] The present application relates to a positioning device, and in particular to a casing center positioning device. Background Art

[0002] In deep foundation pit projects, the supporting structure mainly plays the role of bearing external loads, maintaining the stability of the foundation pit and preventing soil collapse. Therefore, the design of the supporting structure plays a vital role.

[0003] When designing the support structure in the foundation pit, the center of the casing needs to be located to prevent the pile from being displaced. Currently, the center of the casing is located by measuring with a tape measure to obtain a rough point, and then correcting the point. The correction requires large machinery to achieve, which results in large errors and is time-consuming and labor-intensive. Utility Model Content

[0004] The embodiment of the present application provides a casing center positioning device to solve the problems existing in the related technology. The technical solution is as follows:

[0005] The embodiment of the present application provides a casing center positioning device, comprising:

[0006] At least two positioning arms, the positioning arms are arranged transversely, the at least two positioning arms are arranged in sequence along the axial direction of the casing and cross-connected together, the positioning arms are provided with a positioning portion and two limiting structures, the transverse length of the positioning portion is equal to the diameter of the central hole of the casing, the positioning portion is used to be transversely arranged in the central hole of the casing, the two limiting structures are respectively arranged at the transverse ends of the positioning portion, and the limiting structures are used to be connected to the wall of the casing;

[0007] A central identification structure, wherein the central identification structure is located at the transverse center of the positioning portion or directly above the transverse center;

[0008] When each of the limiting structures is connected to the wall of the casing, the positioning portion is transversely arranged in the center hole of the casing so that the center of the center marking structure coincides with the center of the center hole of the casing.

[0009] In one embodiment, a positioning hole is provided on the center marking structure, and the center of the positioning hole can coincide with the center of the center hole of the casing.

[0010] In one embodiment, the positioning hole is used to connect with a measuring instrument.

[0011] In one embodiment, the limiting structure includes:

[0012] A limiting groove, the limiting groove is used to be plugged into the wall of the casing;

[0013] The avoidance opening is communicated with the limiting groove, and the avoidance opening is used for allowing the limiting groove to enter and exit the wall of the casing along the axial direction of the casing.

[0014] In one embodiment, the width of the limiting groove is b1, the wall thickness of the casing is b2, and b1=b2+2mm.

[0015] In one embodiment, the limiting structure further includes:

[0016] a first vertical rod, wherein a first end of the first vertical rod is connected to an end of the positioning portion;

[0017] a second vertical rod, the second vertical rod and the first vertical rod are arranged spaced apart from each other;

[0018] A cross bar, wherein the cross bar is arranged between the first vertical bar and the second vertical bar and connects the second end of the first vertical bar and the first end of the second vertical bar; the cross bar, the first vertical bar and the second vertical bar form the limiting groove; the second end of the second vertical bar and the first end of the first vertical bar form an avoidance opening.

[0019] In one embodiment, a connecting hole is provided at the transverse center of the positioning portion, and the connecting hole passes through the positioning portion both vertically and horizontally;

[0020] The casing center positioning device also includes:

[0021] A connecting piece is used to connect the connecting holes on at least two of the positioning arms so as to connect the at least two positioning arms together.

[0022] In one embodiment, the connecting member is a bolt.

[0023] In one embodiment, the center identification structure is located at the center of the end of the bolt.

[0024] In one embodiment, the positioning portion includes:

[0025] Two connecting rods, the connecting rods are connected to the limiting structure;

[0026] A connecting plate, wherein the connecting plate and the connecting rod are separately arranged, and the connecting plate is located between the two connecting rods and connects the two connecting rods.

[0027] In one embodiment, in two adjacent positioning arms, the two connecting plates are in contact with each other.

[0028] The advantages or beneficial effects of the above technical solution include at least:

[0029] The casing center positioning device of the utility model, by setting a positioning arm and a center identification structure, when positioning the center of the casing, each limiting structure is respectively connected to the wall of the casing, so that the positioning part can be limited in the center hole horizontally arranged in the casing, to prevent shaking, ensure that the center of the center identification structure coincides with the center of the center hole of the casing, can reduce errors, and thus can improve positioning accuracy. Among them, since the lateral length of the positioning part is equal to the diameter of the center hole of the casing and the center identification structure is located at the lateral center part of the positioning part or directly above the lateral center part, when the positioning part is horizontally arranged in the center hole of the casing, the center of the center identification structure can coincide with the center of the center hole of the casing. In this case, the center of the center identification structure is the center of the center hole of the casing; at the same time, the setting of the center identification structure can visualize the center of the casing during positioning, which is convenient for users to observe visually, and thus is convenient for positioning the pile; in summary, the casing center positioning device can realize rapid positioning of the casing center, is simple and convenient to operate, saves time and effort, has high positioning accuracy and high positioning efficiency, and has a simple and practical structure and low cost.

[0030] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present application will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0032] Figure 1 It is a three-dimensional structural schematic diagram of the casing center positioning device of the utility model;

[0033] Figure 2 It is a three-dimensional structural schematic diagram of one of the positioning arms in the casing center positioning device of the utility model;

[0034] Figure 3 It is a three-dimensional structural schematic diagram of one of the positioning arms in the casing center positioning device of the utility model;

[0035] Figure 4 The utility model is a schematic structural diagram of the casing center positioning device installed on the casing.

[0036] Reference numerals

[0037] 1. Positioning arm; 11. Positioning part; 111. Connecting rod; 112. Connecting plate; 1121. Connecting hole; 12. Limiting structure; 121. Limiting groove; 122. Avoidance; 123. First vertical rod; 124. Cross rod; 125. Second vertical rod; 2. Center identification structure; 21. Positioning hole; 3. Connecting piece; 4. Casing. DETAILED DESCRIPTION

[0038] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present application. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0039] See also Figure 1-Figure 4 , shows a casing center positioning device of a preferred embodiment of the utility model, comprising:

[0040] At least two positioning arms 1 are disposed transversely, and at least two positioning arms 1 are sequentially disposed along the axial direction of the casing 4 and cross-connected together. A positioning portion 11 and two limiting structures 12 are disposed on the positioning arm 1. The transverse length of the positioning portion 11 is equal to the diameter of the center hole of the casing 4. The positioning portion 11 is used to be transversely disposed in the center hole of the casing 4. The two limiting structures 12 are disposed at the transverse ends of the positioning portion 11. The limiting structures 12 are used to be connected to the wall of the casing 4.

[0041] A central identification structure 2, which is located at the transverse center of the positioning portion 11 or directly above the transverse center;

[0042] When each of the limiting structures 12 is connected to the wall of the casing 4 , the positioning portion 11 is transversely arranged in the central hole of the casing 4 so that the center of the central marking structure 2 coincides with the center of the central hole of the casing 4 .

[0043] The casing center positioning device of the utility model, by providing a positioning arm 1 and a center identification structure 2, when positioning the center of the casing 4, each limiting structure 12 is respectively connected to the wall of the casing 4, so that the positioning part 11 can be limited in the center hole horizontally arranged in the casing 4 to prevent shaking, and ensure that the center of the center identification structure 2 coincides with the center of the center hole of the casing 4, which can reduce errors and thus improve positioning accuracy. In particular, since the lateral length of the positioning part 11 is equal to the diameter of the center hole of the casing 4 and the center identification structure 2 is located at the lateral center part of the positioning part 11 or at the lateral center part Directly above the casing 4, when the positioning portion 11 is horizontally arranged in the center hole of the casing 4, the center of the center identification structure 2 and the center of the center hole of the casing 4 can be made to coincide. In this case, the center of the center identification structure 2 is the center of the center hole of the casing 4; at the same time, the setting of the center identification structure 2 can visualize the center of the casing 4 during positioning, which is convenient for users to observe visually and thus facilitates the positioning of the pile; in summary, the casing center positioning device can realize rapid positioning of the center of the casing 4, is simple and convenient to operate, saves time and effort, has high positioning accuracy and high positioning efficiency, and has a simple and practical structure and low cost.

[0044] See also Figure 1 and Figure 4 In one embodiment, a positioning hole 21 is provided on the center identification structure 2, and the center of the positioning hole 21 can coincide with the center of the center hole of the casing 4. The setting of the positioning hole 21 makes it more convenient for the user to visually observe the center position of the casing 4, and it can be prepared by drilling a hole on the center identification structure 2, and the processing technology is simpler, which is conducive to improving the processing efficiency of the casing center positioning device.

[0045] In one embodiment, the positioning hole 21 is used to connect with a measuring instrument. By connecting the positioning hole 21 and the measuring instrument, the measuring instrument can be conveniently fixed on the casing center positioning device, reducing the difficulty of installing the measuring instrument. At the same time, it is beneficial to accurately install the measuring instrument at the set position, thereby improving the installation accuracy.

[0046] Of course, in other embodiments, a positioning protrusion is provided on the center marking structure 2 , and the center of the positioning protrusion can coincide with the center of the center hole of the casing 4 , that is, the positioning protrusion can be used to replace the positioning hole 21 .

[0047] See also Figure 1-Figure 4 In one embodiment, the limiting structure 12 includes:

[0048] A limiting groove 121, the limiting groove 121 is used for plugging with the wall of the casing 4;

[0049] The avoidance opening 122 is connected with the limiting groove 121, and the avoidance opening 122 is used for the limiting groove 121 to enter and exit the wall of the casing 4 along the axial direction of the casing 4. In this way, by inserting the limiting grooves 121 on each limiting structure 12 on the wall of the casing 4, the casing center positioning device can be installed on the casing 4, the disassembly and assembly operation is simple, the disassembly and assembly efficiency is high, and the positioning efficiency can be further improved.

[0050] In one embodiment, the width of the limiting groove 121 is b1, the wall thickness of the casing 4 is b2, and b1=b2+2mm. In this way, the limiting groove 121 and the wall clearance of the casing 4 are matched, which is conducive to the rapid disassembly and assembly of the limiting structure 12, and ensures that the limiting groove 121 can still be inserted into the casing 4 when the casing 4 undergoes a small deformation.

[0051] See also Figure 2-Figure 3 In one embodiment, the limiting structure 12 further includes:

[0052] A first vertical rod 123, a first end of the first vertical rod 123 is connected to an end of the positioning portion 11;

[0053] A second vertical rod 125, the second vertical rod 125 and the first vertical rod 123 are arranged to be spaced apart;

[0054] The horizontal bar 124 is arranged between the first vertical bar 123 and the second vertical bar 125 and connects the second end of the first vertical bar 123 and the first end of the second vertical bar 125. The horizontal bar 124, the first vertical bar 123 and the second vertical bar 125 form a limiting groove 121. The second end of the second vertical bar 125 and the first end of the first vertical bar 123 form a avoiding opening 122. The horizontal bar 124, the first vertical bar 123 and the second vertical bar 125 are arranged separately. This limiting structure 12 is simple and has less consumables, which can reduce the cost of the casing center positioning device. In addition, since the horizontal bar 124, the first vertical bar 123 and the second vertical bar 125 are arranged separately, the limiting structure 12 can be formed by processing waste materials on the construction site, which can improve the utilization rate of waste materials on the construction site and reduce the cost of the casing center positioning device.

[0055] Of course, in other embodiments, the limiting structure 12 may be specifically a clamp, and the clamp can be detachably clamped on the wall of the casing 4 so that the limiting structure 12 and the wall of the casing 4 are connected together.

[0056] In one embodiment, at least two positioning arms 1 are rotatably connected. In this way, during installation, at least two positioning arms 1 can rotate relative to each other to adjust the position of the limiting structure 12, thereby allowing the limiting structure 12 to be quickly connected to the wall of the casing 4, thereby improving installation efficiency.

[0057] Of course, in other embodiments, at least two positioning arms 1 are fixedly connected, which can also realize connecting the limiting structure 12 and the wall of the casing 4 together.

[0058] In one embodiment, a connection hole 1121 is provided at the transverse center of the positioning portion 11, and the connection hole 1121 passes through the positioning portion 11 both vertically and horizontally;

[0059] The casing center positioning device also includes:

[0060] The connecting member 3 is connected to the connecting holes 1121 on at least two positioning arms 1 to connect at least two positioning arms 1 together. That is, by connecting at least two positioning arms 1 through the connecting member 3, at least two positioning arms 1 are assembled together, and the assembly is more convenient.

[0061] In one embodiment, the connecting member 3 is a bolt, and the rod of the bolt is passed through the connecting hole 1121 on at least two positioning arms 1, and a nut is screwed onto the rod of the bolt, while ensuring that the head of the bolt and the nut are placed on opposite sides of at least two positioning arms 1. In this way, at least two positioning arms 1 can be reliably connected together, and the assembly operation is simple and convenient, which can improve the assembly efficiency. At the same time, the bolt is a detachable structure, so that at least two positioning arms 1 can be disassembled and assembled, which is convenient for maintenance or replacement of parts.

[0062] In one embodiment, the center marking structure 2 is located at the center of the end of the bolt. Since the bolt is small in size, it is easy to find the center position of the end of the bolt, so it can ensure that the center marking structure 2 is accurately installed at the set position, so that the center marking structure 2 can coincide with the center of the casing 4, which can further improve the positioning accuracy.

[0063] Of course, in other embodiments, the connecting member 3 may also be a structure such as a screw or a rivet.

[0064] Of course, in other embodiments, two adjacent positioning arms 1 may be connected together by welding, or two adjacent positioning arms 1 may be formed in one piece.

[0065] In one embodiment, the positioning portion 11 includes:

[0066] Two connecting rods 111, the connecting rods 111 are connected to the limiting structure 12;

[0067] The connecting plate 112 and the connecting rod 111 are separately arranged, and the connecting plate 112 is located between the two connecting rods 111 and connects the two connecting rods 111. That is, the positioning arm 1 is a split structure composed of the connecting rod 111 and the connecting plate 112. The separately arranged connecting rod 111 and the connecting plate 112 are easily obtained from waste materials on the construction site, which can improve the utilization rate of waste materials on the construction site and reduce costs.

[0068] Of course, in other embodiments, the positioning portion 11 may be a plate-shaped or rod-shaped integral structure.

[0069] In one embodiment, in two adjacent positioning arms 1, two connecting plates 112 abut against each other to reliably connect the two adjacent positioning arms 1 together, thereby improving the structural stability.

[0070] In one embodiment, there are two positioning arms 1 , which can simplify the structure and reduce costs.

[0071] Of course, in other embodiments, the number of the positioning arms 1 can be three or more, which can be set according to actual needs.

[0072] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0073] 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 at least one of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0074] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. The casing center positioning device is characterized by: include: At least two positioning arms, the positioning arms are arranged transversely, the at least two positioning arms are arranged in sequence along the axial direction of the casing and cross-connected together, the positioning arms are provided with a positioning portion and two limiting structures, the transverse length of the positioning portion is equal to the diameter of the central hole of the casing, the positioning portion is used to be transversely arranged in the central hole of the casing, the two limiting structures are respectively arranged at the transverse ends of the positioning portion, and the limiting structures are used to be connected to the wall of the casing; A central identification structure, wherein the central identification structure is located at the transverse center of the positioning portion or directly above the transverse center; When each of the limiting structures is connected to the wall of the casing, the positioning portion is transversely arranged in the center hole of the casing so that the center of the center marking structure coincides with the center of the center hole of the casing.

2. The casing center positioning device according to claim 1, characterized in that: The center marking structure is provided with a positioning hole, and the center of the positioning hole can coincide with the center of the center hole of the casing.

3. The casing center positioning device according to claim 2, characterized in that: The positioning hole is used for connecting with a measuring instrument.

4. The casing center positioning device according to claim 1, characterized in that: The limiting structure is provided with: A limiting groove, the limiting groove is used to be plugged into the wall of the casing; The avoidance opening is communicated with the limiting groove, and the avoidance opening is used for allowing the limiting groove to enter and exit the wall of the casing along the axial direction of the casing.

5. The casing center positioning device according to claim 4, characterized in that: The width of the limiting groove is b1, the wall thickness of the casing is b2, and b1=b2+2mm.

6. The casing center positioning device according to claim 4, characterized in that: The limiting structure also includes: a first vertical rod, wherein a first end of the first vertical rod is connected to an end of the positioning portion; a second vertical rod, the second vertical rod and the first vertical rod are arranged spaced apart from each other; A cross bar, wherein the cross bar is arranged between the first vertical bar and the second vertical bar and connects the second end of the first vertical bar and the first end of the second vertical bar; the cross bar, the first vertical bar and the second vertical bar form the limiting groove; the second end of the second vertical bar and the first end of the first vertical bar form an avoidance opening.

7. The casing center positioning device according to claim 1, characterized in that: A connecting hole is provided at the transverse center of the positioning portion, and the connecting hole passes through the positioning portion both vertically and horizontally; The casing center positioning device also includes: A connecting piece is used to connect the connecting holes on at least two of the positioning arms so as to connect the at least two positioning arms together.

8. The casing center positioning device according to claim 7, characterized in that: The connecting piece is a bolt.

9. The casing center positioning device according to claim 8, characterized in that: The center identification structure is located at the center of the end of the bolt.

10. The casing center positioning device according to claim 1, characterized in that: The positioning portion comprises: Two connecting rods, the connecting rods are connected to the limiting structure; A connecting plate, wherein the connecting plate and the connecting rod are separately arranged, and the connecting plate is located between the two connecting rods and connects the two connecting rods.

Images