Prism centering rod device for rapid fixed-point survey lofting

Abstract

The utility model discloses a prism centering rod device for rapid fixed-point survey lofting, which belongs to the field of constructional engineering construction and comprises a centering rod, a prism is mounted on the centering rod, a sighting board is mounted on the prism, a cavity is formed in the bottom of the centering rod, an extension rod is arranged in the cavity in a sliding manner, and the extension rod is connected with the centering rod. A pressing rod is fixed to the top end of the extension rod, an avoiding groove matched with the pressing rod is formed in the side wall of the centering rod, a marking pen is detachably connected to the bottom end of the extension rod, the bottom of the marking pen is sleeved with a compression spring, and a circular truncated cone abutting against the compression spring is arranged in the middle of the marking pen. According to the utility model, the lofting efficiency is improved, the time is saved, the manpower is reduced, and the measurement lofting precision is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of building construction, and in particular relates to a prism centering rod device for rapid fixed-point measurement and layout. Background Technology

[0002] In the process of total station prism layout, after the points are laid out, the surveyor usually removes the prism, squats down or with the help of other personnel, locates the prism tip, and marks the layout points on the top surface of the structure with a marker. This step is a common practice in engineering surveying and construction, aiming to provide clear reference points for subsequent construction or surveying work. However, in the process of removing the prism and marking the top surface of the structure with a marker, the prism tip may accidentally shift due to the operator's skill, the squatting position to locate the point, and external environmental factors such as lighting, line-of-sight interference, and the size of the work area can affect the results, leading to deviations between the marked points and the actual layout points. Therefore, there is an urgent need for a prism centering rod device for rapid fixed-point measurement and layout to address the shortcomings of existing technologies. Utility Model Content

[0003] The purpose of this invention is to provide a prism centering rod device for rapid fixed-point measurement and layout, in order to overcome the shortcomings of the existing technology.

[0004] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0005] A prism centering rod device for rapid fixed-point measurement and layout includes: a centering rod, a prism mounted on the centering rod, a sight plate mounted on the prism, a cavity at the bottom of the centering rod, an extension rod slidably disposed within the cavity, a pressing rod fixed to the top of the extension rod, a clearance groove on the side wall of the centering rod that mates with the pressing rod, a marker pen detachably connected to the bottom of the extension rod, a compression spring sleeved on the bottom of the marker pen, and a frustum abutting against the compression spring in the middle of the marker pen.

[0006] Furthermore, the cavity is provided with, from top to bottom, an extension rod guide hole, a marker pen guide hole, and a spring guide hole that cooperate with the extension rod, the marker pen, and the compression spring.

[0007] Furthermore, a bracket is provided in the middle of the centering rod, and the bracket is used to level the centering rod.

[0008] Furthermore, the centering rod includes a rod body and a cap body, wherein the rod body and the cap body are connected by a thread.

[0009] The prism centering rod device for rapid fixed-point measurement and layout provided by this utility model has the following advantages compared with the prior art:

[0010] This invention improves layout efficiency, saves time and reduces manpower, while ensuring the accuracy of measurement and layout. Furthermore, this device has advantages such as low manufacturing cost, simple operation, and reusability. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a partial enlarged view of the bottom of the center rod of this utility model.

[0014] In the diagram: 1-Sight plate, 2-Prism, 3-Centering rod, 4-Bracket, 5-Pressing rod, 6-Extension rod, 7-Extension rod guide hole, 8-Marker, 9-Marker guide hole, 10-Compression spring, 11-Spring guide hole, 12-Thread, 13-Cap. Detailed Implementation

[0015] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments:

[0016] refer to Figure 1-2 As shown, this utility model provides a prism centering rod device for rapid fixed-point measurement and layout, including: a centering rod 3, a prism 2 mounted on the centering rod 3, a sight plate 1 mounted on the prism 2, a cavity at the bottom of the centering rod 3, an extension rod 6 slidably disposed in the cavity, a pressing rod 5 fixed at the top of the extension rod 6, a clearance groove for cooperating with the pressing rod 5 on the side wall of the centering rod 3, a marker pen 8 detachably connected to the bottom of the extension rod 6, a compression spring 10 sleeved at the bottom of the marker pen 8, and a frustum (not shown in the figure) in the middle of the marker pen 8 that abuts against the compression spring 10.

[0017] In a preferred embodiment, the cavity is provided with an extension rod guide hole 7, a marker pen guide hole 9, and a spring guide hole 11 arranged sequentially from top to bottom to cooperate with the extension rod 6, the marker pen 8, and the compression spring 10.

[0018] In a preferred embodiment, a bracket 4 is provided in the middle of the centering rod 3, and the bracket 4 is used to level the centering rod 3.

[0019] In a preferred embodiment, the centering rod 3 includes a rod body and a cap body 13, which are connected by a thread 12. When the ink in the marker pen 8 runs out or the tip of the marker pen 8 is damaged, the cap body 13 can be removed and replaced.

[0020] In a preferred embodiment, the sight plate 1, prism 2, centering rod 3, and bracket 4 are conventional measuring prism parameters; the pressing rod 5 is an aluminum cylinder with a length of 10cm and a diameter of 1.5cm; the extension rod 6 is an aluminum cylinder with a length of 40cm and a diameter of 1.5cm; the marker pen 8 is a conventional writing marker with a line width of 1.5mm; and the bottom end of the cap 13 has an opening with a diameter of 2mm for marking when the pen tip is pressed down during measurement.

[0021] The working process and principle of this utility model are as follows:

[0022] After the total station lays out the accurate points, the prism operator can press down the pressing rod 5 below the centering rod 3 without removing the prism. This will cause the marker pen 8 inside the centering rod 3 to move down simultaneously through the extension rod 6, so that the tip of the marker pen 8 accurately lands on the layout point, thus completing the marking of the layout point.

[0023] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0024] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A prism centering rod device for rapid fixed-point measurement and layout, characterized in that, include: A centering rod (3) is provided, on which a prism (2) is installed. A sight plate (1) is installed on the prism (2). A cavity is provided at the bottom of the centering rod (3). An extension rod (6) is slidably arranged in the cavity. A pressing rod (5) is fixed at the top of the extension rod (6). A clearance groove that cooperates with the pressing rod (5) is provided on the side wall of the centering rod (3). A marker pen (8) is detachably connected to the bottom of the extension rod (6). A compression spring (10) is sleeved on the bottom of the marker pen (8). A frustum that abuts against the compression spring (10) is provided in the middle of the marker pen (8).

2. The prism centering rod device for rapid fixed-point measurement and layout according to claim 1, characterized in that, The cavity is provided with an extension rod guide hole (7), a marker pen guide hole (9), and a spring guide hole (11) arranged from top to bottom to cooperate with the extension rod (6), the marker pen (8), and the compression spring (10).

3. The prism centering rod device for rapid fixed-point measurement and layout according to claim 1, characterized in that, A bracket (4) is provided in the middle of the centering rod (3), and the bracket (4) is used to level the centering rod (3).

4. The prism centering rod device for rapid fixed-point measurement and layout according to claim 1, characterized in that, The centering rod (3) includes a rod body and a cap body (13), and the rod body and the cap body (13) are connected by a thread (12).

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