Fixed-point marking device for land survey

Abstract

The utility model discloses a land survey fixed point marking device which comprises a marker post, an electric push rod is fixedly connected to the inner side of the marker post, a pressing block is fixedly connected to the bottom end of the electric push rod, a piston block in sliding connection with the marker post is in contact with the outer side of the pressing block, and a pressure sensor in contact with the piston block is fixedly connected to the bottom end of the pressing block. The bottom end of the inner side of the marker post is fixedly connected with a fixing pipe, the bottom end of the outer side of the marker post is in contact with a fixing frame, and the inner side of the fixing frame is fixedly connected with a rubber sheet. After the marker post is inserted into the ground, the rubber sheet is controlled to continuously expand to tightly squeeze surrounding soil, so that the stability of the device after being inserted into the ground is ensured, the device can be prevented from inclining to the greatest extent when the device is subjected to external force such as external wind, and accurate alignment of a subsequent measuring instrument is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to engineering survey technical field, especially land survey fixed point marking device. BACKGROUND

[0002] Engineering survey refers to the collective term of all surveying and mapping work in engineering construction, including various surveying and mapping work carried out in engineering construction survey, design, construction and management stage, in the land survey of building engineering, usually need to mark the survey point when surveying, to facilitate the subsequent review or construction, in the prior art, when carrying out fixed point marking, usually adopt the marking pole to mark, this kind of mode can realize the marking, but when the land of insertion is relatively soft, the stability after overall insertion is poor, after being subjected to external wind or other external force, easy to incline, and further will lead to the difficulty of accurate alignment of surveying instrument, therefore, land survey fixed point marking device is provided for the above problems. UTILITY MODEL CONTENT

[0003] The utility model solves the technical problems of overcoming the defects of the prior art and effectively solving the problems in the background art.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is:

[0005] Land survey fixed point marking device, including the marking pole, the inside fixed connection of marking pole has electric push rod, the bottom fixed connection of electric push rod has the pressure block, the outside contact of pressure block has the piston block of sliding connection with marking pole, the bottom fixed connection of pressure block has the pressure sensor of contact with piston block, the inside bottom fixed connection of marking pole has fixed pipe, the bottom contact of marking pole outside has fixed frame, the inside fixed connection of fixed frame has rubber sheet, the inside top fixed connection of marking pole has the controller and battery that set up in up and down.

[0006] As a further improvement of the utility model, the rubber sheet is provided with uniformly distributed protrusions, and the protrusions on the outer side of the rubber sheet are conical.

[0007] As a further improvement of the utility model, the outside of the fixed frame is clamped and connected with a clamping block having a groove, and the clamping block is slidingly connected with the marking pole, and the inside of the clamping block is fixedly connected with a first spring.

[0008] As a further improvement of the utility model, the outside of the marking pole is in contact with a limiting plate, the inside of the limiting plate is slidingly connected with a clamping rod penetrating through the limiting plate, and the clamping rod is clamped and connected with the marking pole, the outside of the clamping rod is fixedly connected with a sliding plate slidingly connected with the limiting plate, the other end of the clamping rod is provided with a second spring, and the second spring is fixedly connected with the sliding plate and the limiting plate.

[0009] As a further improvement of the present application, the front end of the marker post is fixedly connected with a scale, and the scale is in contact with the limiting plate.

[0010] Compared with the prior art, the present application has the following beneficial effects:

[0011] 1. The land surveying and marking device, by setting the marker post, the electric push rod, the piston block, the pressure sensor, the fixed tube, the fixed frame and the rubber sheet, when the marker post is inserted into the relatively soft underground for marking, the electric push rod is controlled to extend, at this time the piston block slides down, the pressure block drives the pressure sensor, the pressure value sensed by the pressure sensor continuously increases, the air in the marker post is pressed into the fixed frame through the fixed tube, the rubber sheet in the fixed frame continuously expands and squeezes the surrounding soil at this time, when the pressure value sensed by the pressure sensor reaches the set range, the electric push rod stops, by controlling the rubber sheet to continuously expand and squeeze the surrounding soil after the marker post is inserted into the underground, the stability of the device after being inserted into the underground is ensured, so that when the device is affected by external forces such as wind, the device can be prevented from tilting to the maximum extent, and the accurate alignment of the subsequent measuring instrument is ensured.

[0012] 2. The land surveying and marking device, by setting the limiting plate, the clamping rod, the sliding plate, the second spring and the scale, the limiting plate is pushed to slide outside the marker post, then the scale value of the limiting plate on the scale is observed, when the scale value of the limiting plate on the scale reaches the insertion depth requirement of the marker post, the clamping rod is controlled to be clamped with the marker post under the elastic force of the second spring on the sliding plate, the limiting plate after sliding is further positioned, and the depth of the marker post inserted into the underground is facilitated under the limiting of the limiting plate. BRIEF DESCRIPTION OF DRAWINGS

[0013] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, and are used together with the embodiments of the present application to explain the present application, and do not constitute a limitation on the present application.

[0014] Figure 1 It is a whole structure schematic view of the land surveying and marking device of the present application.

[0015] Figure 2 It is a sectional structure schematic view of the land surveying and marking device of the present application.

[0016] Figure 3 It is a structure schematic view of the land surveying and marking device of the present application Figure 2 A.

[0017] In the figure: 1, the marker; 2, electric push rod; 3, pressing block; 4, piston block; 5, pressure sensor; 6, fixed tube; 7, fixed frame; 8, rubber sheet; 9, clamping block; 10, first spring; 11, controller; 12, battery; 13, limiting plate; 14, clamping rod; 15, sliding plate; 16, second spring; 17, scale. DETAILED DESCRIPTION

[0018] The utility model will be further described below in conjunction with specific embodiments, wherein, the drawings are only for example description, the representation is only schematic diagram, and is not the real object drawing, can not be understood as the limitation of this patent, in order to better illustrate the specific embodiment of the utility model, some components of the drawings will be omitted, enlarged or reduced, and do not represent the size of actual product, for those skilled in the art, some known structures and its description in the drawings can be omitted, it is understandable that all other specific embodiments obtained by the ordinary skill in the art without making creative labor based on the specific embodiment in the utility model, belong to the range of protection of the utility model.

[0019] Example 1

[0020] As Figures 1-3 The land surveying fixed-point marking device, including the marker 1, the electric push rod 2 is fixedly connected in the marker 1, the pressing block 3 is fixedly connected at the bottom of the electric push rod 2, the piston block 4 is slidably connected with the pressing block 3, the pressure sensor 5 is fixedly connected with the piston block 4 at the bottom of the pressing block 3, the fixed tube 6 is fixedly connected at the bottom of the marker 1, the fixed frame 7 is contacted with the marker 1 at the bottom, the rubber sheet 8 is fixedly connected in the fixed frame 7, the controller 11 and the battery 12 are fixedly connected at the top of the marker 1 and are arranged in up-down mode.

[0021] Example 2

[0022] As Figure 1 In order to solve the problem that the stability effect of the device after being inserted into the ground is not very good, the rubber sheet 8 is provided with uniformly distributed protrusions, and the protrusions on the outer side of the rubber sheet 8 are arranged in the form of a cone, so that when the rubber sheet 8 is controlled to expand and drive the protrusions arranged in the form of a cone to tightly squeeze the surrounding soil, the stability effect of the device after being inserted into the ground is better.

[0023] Example 3

[0024] As Figures 2-3As shown, in order to solve the problem of the rubber sheet 8 being difficult to replace when damaged, a locking block 9 with a groove on the outside is engaged at one end of the outer side of the fixing frame 7, and the locking block 9 is slidably connected to the marker rod 1. A first spring 10 is fixedly connected to one end of the inner side of the locking block 9. The locking block 9 is pushed by the groove on the outside of the locking block 9 to compress the first spring 10, and then the fixing frame 7 with the damaged rubber sheet 8 fixed inside can be removed, which facilitates the replacement of the rubber sheet 8 when it is damaged.

[0025] Example 4

[0026] like Figures 1-2 As shown, to solve the problem of inconvenience in controlling the depth of the device inserted underground, the outer side of the marker 1 contacts a limiting plate 13, and the inner side of the limiting plate 13 is slidably connected to a locking rod 14 that passes through the limiting plate 13, and the locking rod 14 is engaged with the marker 1. One end of the locking rod 14 is fixedly connected to a sliding plate 15 that is slidably connected to the limiting plate 13, and the other end of the locking rod 14 is provided with a second spring 16, which is fixedly connected to the sliding plate 15 and the limiting plate 13. By pushing the limiting plate 13 to slide on the outside of the marker 1, and then controlling the locking rod 14 to engage in the locking groove on the outside of the marker 1 under the elastic force of the second spring 16 on the sliding plate 15, the sliding limiting plate 13 is further positioned, which facilitates the control of the depth of the device inserted underground.

[0027] Example 5

[0028] like Figure 1 As shown, in order to solve the problem of not being able to determine the position of the limiting plate 13 outside the marker 1, a scale 17 is fixedly connected to the front end of the marker 1, and the scale 17 is in contact with the limiting plate 13. By pointing to the scale value on the scale 17 through the bottom of the limiting plate 13, it is convenient to determine the position of the limiting plate 13 outside the marker 1.

[0029] In the embodiment, when the staff 1 is inserted into the soft underground for the fixed point marking, the sensing range of the pressure sensor 5 is set through the controller 11, then the limiting plate 13 is pushed to slide outside the staff 1, then the scale value of the limiting plate 13 at the bottom of the scale 17 is observed, when the scale value of the limiting plate 13 at the scale 17 reaches the required insertion depth of the staff 1, the control rod 14 is clamped into the clamping groove outside the staff 1 under the elastic force of the second spring 16 on the sliding plate 15, the limiting plate 13 after sliding is further positioned, after positioning, the staff 1 is inserted into the underground under the limiting of the limiting plate 13, then the electric push rod 2 is controlled to extend through the controller 11, at this time, the piston block 4 slides downward, the pressing block 3 presses the pressure sensor 5, the pressure value sensed by the pressure sensor 5 is continuously increased, the air in the staff 1 is pressed into the fixed frame 7 through the fixed pipe 6, the rubber sheet 8 with the conical protrusion is provided outside the fixed frame 7 and is continuously expanded and squeezed around the soil, when the pressure value sensed by the pressure sensor 5 reaches the set range, the electric push rod 2 stops, at this time, the device is just inserted into the underground for the fixed point marking, when the rubber sheet 8 is damaged after long time use, the first spring 10 is compressed by pushing the clamping block 9, then the fixed frame 7 with the damaged rubber sheet 8 is taken off, the replacement of the rubber sheet 8 is facilitated.

[0030] The above is the preferred embodiment of the utility model, the basic principle and the main features of the utility model and the advantages of the utility model are shown and described, the technical personnel in the industry should understand that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, under the premise of not departing from the spirit and the scope of the utility model, the utility model will have various changes and improvements, the changes and improvements all fall into the scope of the utility model to be protected, the protection scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims

1. Land surveying point marker device comprising a pole (1), characterized in that: The inside of the marker post (1) is fixedly connected with an electric push rod (2), the bottom end of the electric push rod (2) is fixedly connected with a pressing block (3), the outside of the pressing block (3) is in contact with a piston block (4) which is slidingly connected with the marker post (1), the bottom end of the pressing block (3) is fixedly connected with a pressure sensor (5) which is in contact with the piston block (4), the inside bottom end of the marker post (1) is fixedly connected with a fixed tube (6), the outside bottom end of the marker post (1) is in contact with a fixed frame (7), the inside of the fixed frame (7) is fixedly connected with a rubber sheet (8), the inside top end of the marker post (1) is fixedly connected with a controller (11) and a battery (12) which are arranged in an up-down mode.

2. The land surveying point marker of claim 1, wherein: The outside of the rubber sheet (8) is provided with uniformly distributed protrusions, and the protrusions on the outside of the rubber sheet (8) are arranged in a conical shape.

3. The land surveying point marking device of claim 1, wherein: The outside of the fixed frame (7) is hingedly connected with a clamping block (9) which is provided with a groove on the outside, and the clamping block (9) is slidingly connected with the marker post (1), and the inside of the clamping block (9) is fixedly connected with a first spring (10).

4. The land surveying point marking device of claim 1, wherein: The outside of the marker post (1) is in contact with a limiting plate (13), the inside of the limiting plate (13) is slidingly connected with a clamping rod (14) which penetrates through the limiting plate (13), and the clamping rod (14) is hingedly connected with the marker post (1), the outside of the clamping rod (14) is fixedly connected with a sliding plate (15) which is slidingly connected with the limiting plate (13), the other end of the clamping rod (14) is provided with a second spring (16), and the second spring (16) is fixedly connected with the sliding plate (15) and the limiting plate (13).

5. The land surveying point marking device of claim 4, wherein: The front end of the marker post (1) is fixedly connected with a scale (17), and the scale (17) is in contact with the limiting plate (13).

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