Accurate point fixing device for construction measurement

Abstract

The utility model discloses an accurate point fixing device for construction measurement, and belongs to the technical field of building construction measurement. Comprising a penholder sleeve, a spring, a clamping distance jacking and a pressing rod. The bottom of the penholder sleeve is provided with a through hole allowing a pen point of the marking pen to extend out, the spring is placed in the penholder sleeve, the marking pen penetrates through the spring to be placed in the penholder sleeve, via holes are formed in two opposite side walls of the penholder sleeve, and connecting seats are arranged on two sides of one via hole and fixedly connected to the outer wall of the penholder sleeve. The pressing rod penetrates through the two via holes, one end of the pressing rod extends into the connecting seat, and the connecting seat is rotationally connected with the pressing rod through the connecting rod; the pressing rod is positioned above the marking pen; the bottom of the clamping distance jacking is detachably connected with the top of the penholder sleeve, and the top of the clamping distance jacking is connected with the bottom of a centering rod of the measuring tripod; according to the device, the problems of low ground marking precision and low efficiency during measurement operation are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction measurement, in particular to a precise point-fixing device for construction measurement. Background Art

[0002] Construction surveying refers to the surveying work for construction control, layout and final acceptance. Construction layout is to mark the location, shape, size and elevation of the designed building on the ground according to the design drawings, so that construction can be carried out according to these point lines.

[0003] In conventional construction surveying, the total station needs to be aimed at the centering pole, and then two people need to measure and lay out, and mark the points after they are determined. When there are many points, the person using the centering pole needs to bend down frequently to mark on the ground (limiting measurement efficiency), or a third person needs to follow to mark (increasing personnel input).

[0004] Moreover, in actual work, according to the re-measurement of the marks on the points, some of the points were deviated. Through analysis, it was found that since the surveyors needed to pick up the centering rod before marking with a marker, sometimes they were prone to marking errors, which affected the measurement accuracy, caused the structure to deviate, and ultimately directly caused economic losses. Utility Model Content

[0005] The utility model overcomes the shortcomings of the prior art, proposes a precise point-fixing device for construction measurement, and solves the problems of low ground marking accuracy and low efficiency during measurement operations.

[0006] In order to achieve the above purpose, the utility model is implemented through the following technical solutions.

[0007] A precise positioning device for construction measurement, comprising a pen sleeve, a spring, a distance-fixing support and a pressing rod; a through hole for extending the pen tip of a marker is provided at the bottom of the pen sleeve, the spring is placed in the pen sleeve, the marker is placed in the pen sleeve through the spring, through holes are provided on two opposite side walls of the pen sleeve, connecting seats are provided on both sides of one of the through holes, the connecting seat is fixedly connected to the outer wall of the pen sleeve, the pressing rod passes through the two through holes, one end of the pressing rod extends into the connecting seat, the connecting seat and the pressing rod are rotatably connected by the connecting rod; the pressing rod is located above the marker; the bottom of the distance-fixing support is detachably connected to the top of the pen sleeve, and the top of the distance-fixing support is connected to the bottom of the centering rod of a measuring tripod.

[0008] Furthermore, the pen barrel sleeve includes a base and a tube, the spring is placed in the base, and the top of the base is threadedly connected to the bottom of the tube.

[0009] Furthermore, the bottom of the card distance top bracket is threadedly connected to the top of the hosting bracket.

[0010] Furthermore, a plug-in slot is provided at the top of the card distance top bracket, and the bottom of the centering rod is plugged into the plug-in slot.

[0011] Furthermore, the connecting rod is a bolt and a nut, the bolt passes through the connecting seat and is fixed by the nut; the pressing rod is rotatably connected to the bolt.

[0012] Furthermore, another via hole away from the connecting seat is an oblong hole.

[0013] The beneficial effects of the utility model compared with the prior art are:

[0014] The utility model solves the problems of point marking accuracy and efficiency in construction measurement. Compared with the measurement and layout before the improvement, the efficiency is improved by 1.5 times, and it avoids the frequent bending over for marking and the involvement of unnecessary personnel. The device is light and fast.

[0015] The device can improve the accuracy of measuring point marking and the efficiency of measuring and setting out. The device has a simple structure, low cost, convenience, high operability, strong applicability, and effectively avoids frequent bending of personnel and the input of redundant personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the external structure of the precise point-fixing device for construction measurement;

[0017] Figure 2 This is an exploded view of the precise point-fixing device for construction measurement, and it has two different specifications of card distance brackets;

[0018] Figure 3 This is a three-dimensional structural exploded diagram of the precise positioning device for construction measurement, and it has two different specifications of card distance support;

[0019] Figure 4 Schematic diagram of the precise point-fixing device for construction measurement connected to the bottom of the centering pole of the measuring tripod.

[0020] In the figure: 1. Card distance top support; 2. Trustee bracket; 3. Bottom support; 4. Press rod; 5. Connecting seat; 6. Connecting rod; 7. Spring; 8. Through hole; 9. Centering rod; 10. Plug-in slot. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail in combination with the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. The technical solution of the present invention is described in detail below in combination with the embodiments and the accompanying drawings, but the scope of protection is not limited thereto.

[0022] See also Figures 1 to 4 , this embodiment proposes a precise positioning device for construction measurement, including a pen sleeve, a spring 7, a card distance top support 1 and a pressing rod 4; wherein, the pen sleeve includes a bottom support 3 and a tube support 2, and the top of the bottom support 3 is threadedly connected to the bottom of the tube support 2. The tube support 2 is used to place a marker pen; a through hole for the marker pen tip to extend out is provided at the bottom of the bottom support 3, the spring 7 is placed in the bottom support 3, and the marker pen is placed in the pen sleeve through the spring 7, and a through hole 8 is provided on the two opposite side walls of the upper part of the tube support 2, and a connecting seat 5 is provided on both sides of one of the through holes 8, and the connecting seat 5 is fixedly connected to the outer wall of the tube support 2. In this embodiment, the connecting seat 5 is two symmetrical steel plates, and the tube support 2 is a steel pipe. The steel plates are directly welded to the tube support 2 and are located on both sides of a through hole 8. The other through hole 8 away from the connecting seat 5 is an oblong hole.

[0023] The pressing rod 4 passes through two through holes 8, and one end of the pressing rod 4 extends into the connecting seat 5. The connecting seat 5 and the pressing rod 4 are rotatably connected through the connecting rod 6; the pressing rod 4 is located above the marker pen; in this embodiment, the pressing rod 4 is made of steel bars; the connecting rod 6 is a bolt and a nut, the bolt passes through the connecting seat 5 and is fixed by the nut; the pressing rod 4 passes through the bolt and is rotatably connected to the bolt.

[0024] The bottom of the card distance top bracket 1 is threadedly connected to the top of the tube 2; the top of the card distance top bracket 1 is connected to the bottom of the centering rod 9 of the measuring tripod.

[0025] In this embodiment, a plug-in slot 10 is provided at the top of the card distance support 1 , and the bottom of the centering rod 9 is plugged into the plug-in slot 10 .

[0026] In this embodiment, the main body of the card distance top support 1 is a φ3.5cm steel pipe, a thread is set at the lower part of the card distance top support 1, the tube 2 is a φ2.3cm steel pipe, the upper and lower parts of the tube 2 are provided with threads, the bottom support 3 is a φ2.5cm steel pipe, and there is a round table supporting the spring 7 inside, a thread is set on the upper part of the bottom support 3, the pressing rod 4 is a φ0.6cm / 10cm long steel bar, the connecting seat 5 is a steel plate with a length of 3cm*width of 2.5cm*thickness of 0.3cm / 1cm, the model of the bolts and nuts is M5, and the spring 7 is 3cm long.

[0027] Specific steps:

[0028] 1. According to the outer diameter of the centering rod 9, make a suitable distance support 1.

[0029] 2. According to the length of the marker pen, place the pressing rod 4 in the middle of the hosting 2, weld the connecting seat 5 at the corresponding position, and rotate the pressing rod 4 to connect to the connecting seat 5 through bolts and nuts 6.

[0030] 3. Assemble the whole device: first place the marking pen and spring 7 on the bottom bracket 3, connect the bottom bracket 3, the tube bracket 2 and the card distance top bracket 1 through threads and threads, and install the centering rod 9 on the upper part of the card distance top bracket 1.

[0031] 4. During the measurement and setting out process, a person steps on the pressing rod 4 to press the marking pen, so that the marking pen marks the point on the ground.

[0032] 5. If the centering rod 9 has different sizes, the corresponding card distance support 1 can be made for replacement.

[0033] The device successfully solved the problems of point marking accuracy and efficiency in construction measurement. Compared with the measurement and layout before the improvement, the efficiency has been improved by 1.5 times. It also avoids frequent bending over for marking and the involvement of unnecessary personnel. The device is light and fast.

[0034] Current situation before improvement: During construction measurement, one person is assigned to mark points. The centering rod needs to be moved and marked every 7 seconds. Based on the measurement verification error, the point marking error is converted to 10%.

[0035] Status after improvement: After using the device of this embodiment, there is no need to cooperate with specialized personnel to mark the points. The centering rod does not need to be moved every 3S / 1, and the marking error is 0.

[0036]

[0037] Compared with the improved measurement method, the accuracy and efficiency of measuring point marking are greatly improved, which effectively avoids the deviation of structures caused by point marking errors, and ultimately directly causes economic losses.

[0038] The above content is a further detailed description of the utility model in combination with a specific preferred implementation method. It cannot be determined that the specific implementation methods of the utility model are limited to this. For ordinary technicians in the technical field to which the utility model belongs, they can make several simple deductions or substitutions without departing from the utility model, which should be regarded as belonging to the utility model and the scope of patent protection determined by the submitted claims.

Claims

1. A precise point-fixing device for construction measurement, characterized in that: The invention comprises a pen sleeve, a spring (7), a distance-fixing top support (1) and a pressing rod (4); a through hole for extending the pen tip of a marker pen is arranged at the bottom of the pen sleeve, the spring (7) is placed in the pen sleeve, the marker pen passes through the spring (7) and is placed in the pen sleeve, through holes (8) are arranged on two opposite side walls of the pen sleeve, a connecting seat (5) is arranged on both sides of one of the through holes (8), the connecting seat (5) is fixedly connected to the outer wall of the pen sleeve, the pressing rod (4) passes through the two through holes (8), one end of the pressing rod (4) extends into the connecting seat (5), the connecting seat (5) and the pressing rod (4) are rotatably connected via a connecting rod (6); the pressing rod (4) is located above the marker pen; the bottom of the distance-fixing top support (1) is detachably connected to the top of the pen sleeve, and the top of the distance-fixing top support (1) is connected to the bottom of a centering rod (9) of a measuring tripod.

2. A construction measurement precision fixed-point device according to claim 1, characterized in that: The pen barrel sleeve comprises a base (3) and a tube (2), the spring (7) is placed in the base (3), and the top of the base (3) is threadedly connected to the bottom of the tube (2).

3. A construction measurement precision fixed-point device according to claim 2, characterized in that: The bottom of the card distance top bracket (1) is threadedly connected to the top of the hosting bracket (2).

4. A construction measurement precision fixed-point device according to claim 1 or 3, characterized in that: The top of the card distance support (1) is provided with an insertion slot (10), and the bottom of the centering rod (9) is inserted into the insertion slot (10).

5. The construction measurement precision positioning device according to claim 1, characterized in that: The connecting rod (6) is a bolt and a nut, the bolt passes through the connecting seat (5) and is fixed by the nut; the pressing rod (4) is rotatably connected to the bolt.

6. The construction measurement precision positioning device according to claim 1, characterized in that: Another through hole (8) away from the connecting seat (5) is an oblong hole.

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