Arch rib sling sleeve intersecting line drawing tool

Abstract

The utility model provides an arch rib sling sleeve intersecting line drawing tool which comprises a foundation rod, the outer side of the foundation rod is sleeved with a sleeve, and the sleeve and the foundation rod are coaxial and are in sliding fit. Two supporting rods are independently arranged on the outer wall of the sleeve, a working rod is arranged on each supporting rod, and a drawing head is arranged on each working rod; the working rod is parallel to the axis direction of the sleeve; the working rods on the two supporting rods face opposite directions, and the supporting rods are of a telescopic structure. The drawing head is detachably mounted on the working rod, a drawing pen mounting hole is formed in the tail end of the drawing head, and a drawing pen is inserted into the drawing pen mounting hole. The drawing device is mainly composed of the foundation rod, the sleeve, the frame body and the drawing pen, the structural design is reasonable, a template does not need to be manufactured, the auxiliary machining time is greatly shortened, personal errors are reduced, the machining quality is improved, rapid construction is achieved, the length of the supporting rod can be adjusted according to the diameter of the arch rib sling, and the drawing requirements of arch rib slings with different diameters are met; the application range is wide.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a tool for drawing intersection lines of arch rib slings and sleeves. Background Art

[0002] In the process of processing arch rib steel structure bridge, the traditional operation method is to use manual lofting and cutting. According to the intersection angle between steel pipes and the diameter of steel pipes, the plane diagram of the intersecting line type is calculated (that is, according to the intersection form, the steel pipe is unfolded in a plane). According to the plane graphic data of the intersecting line, a template is made of thin steel plate, and the template is placed close to the outer wall of the steel pipe to mark the steel pipe, and then manual gas cutting is performed according to the marking path. Due to the various forms of arch ribs and sling pipes, the types of intersecting lines are many, the number is large, and the precision requirements are high. The quality of manual lofting and cutting is greatly affected by human factors, the cutting accuracy is difficult to guarantee, and the work efficiency is extremely low, and the project schedule and quality cannot be guaranteed. Therefore, it is necessary to design a special tool to improve work efficiency and cutting accuracy. Summary of the invention

[0003] In view of this, the invention aims to overcome the defects in the prior art and proposes a tool for drawing the intersection line of arch rib sling sleeves.

[0004] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0005] A tool for drawing intersection lines of arch rib sling sleeves, comprising a base rod, a sleeve being sleeved on the outside of the base rod, and the sleeve is coaxial with the base rod and slidingly matched therebetween; the outer wall of the sleeve is independently provided with two frames, the frames comprising support rods on the outer wall of the sleeve, each support rod is provided with a working rod, and the working rod is provided with a drawing head; the working rod is parallel to the axis of the sleeve; the working rods on the two support rods face oppositely, and the support rods adopt a telescopic structure; the drawing head is detachably mounted on the working rod, a drawing pen mounting hole is provided at the end of the drawing head, and a drawing pen is inserted into the drawing pen mounting hole.

[0006] Furthermore, the two support rods are symmetrically arranged on the sleeve.

[0007] Furthermore, a protective sleeve is provided on the outer wall of the working rod, and the protective sleeve is made of rubber, plastic or nylon material.

[0008] Furthermore, the outer diameter of the sheath is 1.5-3 cm.

[0009] Furthermore, the working rod adopts a telescopic structure.

[0010] Furthermore, the support rod is arranged perpendicular to the axial direction of the sleeve.

[0011] Furthermore, the drawing head is inserted into the working rod, or the drawing head is screwed onto the working rod.

[0012] Furthermore, the drawing pen is a chalk, a marker or a graphite stick.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] The invention is mainly composed of a basic rod, a sleeve, a frame and a drawing pen, has a reasonable structural design, does not need to make a template, greatly shortens the auxiliary processing time, reduces human errors, improves the processing quality and realizes rapid construction, and the length of the support rod can be adjusted according to the diameter of the arch rib sling to meet the drawing requirements of arch rib slings with different diameters, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 A schematic diagram of the structure created by the present invention;

[0017] Figure 2 This is a schematic diagram of the frame being installed with a drawing head in the invention. DETAILED DESCRIPTION

[0018] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0020] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 indirectly connected 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 invention can be understood according to specific circumstances.

[0021] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0022] A tool for drawing the intersection line of arch rib sling sleeves, such as Figure 1 and Figure 2 As shown, it includes a basic rod 1, a sleeve 2 is sleeved on the outside of the basic rod, and the sleeve is coaxial with the basic rod, and the two are slidably matched; the outer wall of the sleeve is independently provided with two frames 3, and the frames include support rods 4 on the outer wall of the sleeve, each support rod is provided with a working rod 5, and a drawing head 6 is provided on the working rod; usually, the two support rods are symmetrically arranged on the sleeve. The support rods are arranged perpendicular to the axial direction of the sleeve; the working rod is parallel to the axial direction of the sleeve. The basic rod can use the existing small-diameter round pipe on site, which is convenient for material acquisition.

[0023] The invention utilizes the principle of graphic geometry, and does not need to make a traditional intersection line cutting template. The diameter of the arch rib sling round tube is determined by the tool to make the sling sleeve, and the intersection line between the sling and the arch rib is directly drawn on the arch rib, and then cutting is performed. The drawing head can be detachably mounted on the working rod, and a drawing pen mounting hole is provided at the end of the drawing head, and a drawing pen 7 is inserted into the drawing pen mounting hole. As an example, the drawing head is inserted into the working rod, or the drawing head is screwed on the working rod.

[0024] It should be noted that, considering that drawing pens come in various shapes, for example, the drawing pens are chalk, markers or graphite sticks, and different drawing pens are fixed in the same mounting hole, it is not easy to ensure that they are firmly fixed and are easy to fall off. In the invention, the drawing pen is installed on the working rod through the drawing head, rather than directly installed on the working rod, that is, the drawing head is used as an adapting structural part, and different types of drawing pens can be fixed on the corresponding drawing heads, and then the drawing heads can be directly installed on the front end of the working rod. In addition, when it is necessary to replace different types of drawing pens, it is only necessary to install the drawing head loaded with the corresponding drawing pen on the working rod, which is very easy to operate.

[0025] The working rods on the two support rods face oppositely, and the support rods adopt a telescopic structure. The working rods can also adopt a telescopic structure, and the length can be adjusted as needed, which is more versatile and practical. The two sets of drawing heads are easy to operate, and the tool does not need to consider the positive and negative directions during use. Moreover, even if a certain support rod or working rod, before operation, the size and size of the drawing tool are determined according to the specifications and models of the steel pipe arch rib sling sleeve, and the hole position is determined in advance by the total station before drawing.

[0026] In an optional embodiment, the outer wall of the working rod is provided with a sheath 8, which is made of rubber, plastic or nylon. Usually, the outer diameter of the sheath is 1.5-3 cm. When drawing the intersecting line, the drawing pen on one working rod can be used to press against the surface of the pipe body to be drawn, and the other working rod is used as a handle. The worker holds the sheath position and rotates the sleeve to complete the drawing of the intersecting line. The operation is convenient, safe and reliable.

[0027] The invention is mainly composed of a basic rod, a sleeve, a frame and a drawing pen, has a reasonable structural design, does not need to make a template, greatly shortens the auxiliary processing time, reduces human errors, improves the processing quality and realizes rapid construction, and the length of the support rod can be adjusted according to the diameter of the arch rib sling to meet the drawing requirements of arch rib slings with different diameters, and has a wide range of applications.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A tool for drawing intersection lines of arch rib slings and casings, characterized in that: It includes a basic rod, a sleeve is sleeved on the outside of the basic rod, and the sleeve is coaxial with the basic rod and slides together; the outer wall of the sleeve is independently provided with two frames, the frames include support rods on the outer wall of the sleeve, each support rod is provided with a working rod, and a drawing head is provided on the working rod; the working rod is parallel to the axis of the sleeve; the working rods on the two support rods face oppositely, and the support rods adopt a telescopic structure; the drawing head can be detachably installed on the working rod, a drawing pen mounting hole is provided at the end of the drawing head, and a drawing pen is inserted into the drawing pen mounting hole.

2. The tool for drawing intersection lines of arch rib slings and sleeves according to claim 1, characterized in that: The two support rods are symmetrically arranged on the sleeve.

3. The tool for drawing intersection lines of arch rib slings and sleeves according to claim 1, characterized in that: The outer wall of the working rod is provided with a sheath which is made of rubber, plastic or nylon material.

4. The arch rib sling sleeve intersection line drawing tool according to claim 3, characterized in that: The outer diameter of the sheath is 1.5-3 cm.

5. The arch rib sling sleeve intersection line drawing tool according to claim 1, characterized in that: The working rod adopts a telescopic structure.

6. The tool for drawing intersection lines of arch rib slings and sleeves according to claim 1, characterized in that: The support rod is arranged perpendicular to the axial direction of the sleeve.

7. The tool for drawing intersection lines of arch rib slings and sleeves according to claim 1, characterized in that: The drawing head is inserted into the working rod, or the drawing head is screwed on the working rod.

8. The tool for drawing intersection lines of arch rib slings and sleeves according to claim 1, characterized in that: The drawing pen is a chalk, a marker or a graphite stick.

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