Foundation pit detection device

Abstract

The utility model relates to the technical field of detection devices, and discloses a foundation pit detection device, which comprises a base, a detection device and a control device, the bottom of the lifting rod is inserted into the vertical pipe; the reflecting prism is arranged at the top of the lifting rod; according to the detection device, the height can be adjusted only by pulling a pull button to remove fixation through the adjusting assembly by utilizing the components such as a T-shaped rod spring and a clamping plate, and meanwhile fixation can be achieved by loosening the pull button. And compared with an existing device, the height of the reflecting prism can be finely adjusted through the arrangement of the fixing plate, and the precision is higher. According to the detection device, the lifting rod can be prevented from being pulled out from the interior of the vertical pipe through the arrangement of the auxiliary assembly baffle. And the size table can adjust the height of the reflecting prism according to needs, so that the adjustment accuracy is better facilitated. The umbrella-shaped plate can block rainwater and sunlight to prevent the rainwater from damaging the reflecting prism and prevent the sunlight from interfering with the use of the reflecting prism.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, in particular to a foundation pit detection device. Background Art

[0002] During construction, it is necessary to dig a foundation pit on the ground. As the soil in the foundation pit is excavated, the soil on the side walls of the foundation pit tends to move toward the inside of the foundation pit. It is necessary to monitor the horizontal deformation of the soil to determine the safety and stability of the support structure and reduce potential safety hazards. Monitoring points are set on the foundation pit support (such as retaining walls), and prisms are set at the monitoring points. The total station outside the foundation pit and the reference point prism are used for measurement, thereby realizing the monitoring of the horizontal displacement of the foundation pit.

[0003] China Utility Model Publication Specification CN211621534U discloses a foundation pit horizontal displacement detection device, which is designed with a reflective prism with adjustable height for easy adjustment. The principle is that a lifting rod is arranged above the base, a reflective prism is arranged on the top of the lifting rod, an adjustment component is arranged inside the lifting rod to adjust the height, and a spring is used to push a locking piece into a lock hole to fix the height of the lifting rod. Because one end of the locking piece is arranged in an arc shape, it is easy to adjust.

[0004] However, there are only a few lock holes on the front surface of the lifting rod, and the intervals are too large. In actual use, it is impossible to make slight height adjustments, which makes it less practical. Therefore, a detection device that can finely adjust the height is designed to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a foundation pit detection device, which has the advantage of being able to finely adjust the height when adjusting the reflective prism, thereby solving the problem that the prior device cannot perform fine adjustments due to the fixed setting of the lock holes and the certain distance between them.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a foundation pit detection device, comprising: a base, a vertical tube is arranged on the top of the base; a lifting rod, the bottom of which is inserted into the interior of the vertical tube; a reflective prism is arranged on the top of the lifting rod; an adjustment component is arranged on the inner side wall of the bottom of the lifting rod, and the adjustment component comprises: a slide groove, which is opened on the front surface of the vertical tube; a plurality of fixing plates are arranged, all of which are arranged on the inner side walls on both sides of the vertical tube; a slider is slidably arranged in the interior of the slide groove and connected to the outer side wall of the bottom of the lifting rod; a T-shaped rod, the bottom of which passes through the inner side wall of the lifting rod and passes through the slider; a spring is symmetrically arranged at the top of the T-shaped rod and connected to the inner side wall of the lifting rod; a connecting rod is symmetrically hinged on both sides of the T-shaped rod; a telescopic rod symmetrically passes through the inner side wall of the lifting rod, and one end is hinged to the other end of the connecting rod; two clamping plates are arranged, both of which are arranged at one end of the telescopic rod.

[0009] Preferably, the thickness of the clamping plate fits the gap between the two fixing plates.

[0010] Preferably, the adjustment assembly further comprises a conical block, which is arranged at one end of the clamping plate.

[0011] Preferably, the adjustment assembly further comprises a pull button, which is arranged at the tail end of the T-shaped rod.

[0012] Preferably, the outer side wall of the lifting rod and the top of the reflecting prism are provided with auxiliary components, and the auxiliary components include: a baffle plate provided at the bottom of the lifting rod.

[0013] Preferably, the auxiliary component further comprises: a dimension gauge, which is arranged on the front surface of the lifting rod.

[0014] Preferably, the auxiliary component further comprises an umbrella-shaped plate, which is arranged on the top of the reflective prism.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a foundation pit detection device, which has the following beneficial effects:

[0017] 1. The detection device uses the T-shaped rod spring and the card plate and other components through the adjustment component. When adjusting, you only need to pull the button to release the fixation to adjust the height, and release the button to fix it. Compared with the setting of the fixed plate of the existing device, the height of the reflective prism can be finely adjusted with higher accuracy.

[0018] 2. The detection device can prevent the lifting rod from being pulled out from the inside of the vertical pipe by setting the auxiliary component baffle. The size table can adjust the height of the reflective prism as needed, which is more conducive to the accuracy of adjustment. The setting of the umbrella plate can block rain and sunlight to prevent rain from damaging the reflective prism and sunlight from interfering with the use of the reflective prism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure inside the lifting rod of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the connection between the clamping plate and the fixing plate of the utility model.

[0023] In the figure: 11, base; 12, riser; 13, lifting rod; 14, reflective prism;

[0024] 2. Adjustment assembly; 21. Slide; 22. Fixing plate; 23. Sliding block; 24. T-shaped rod; 25. Spring; 26. Connecting rod; 27. Telescopic rod; 28. Card plate; 281. Conical block; 29. ​​Knob;

[0025] 3. Auxiliary components; 31. Baffle; 32. Dimension table; 33. Umbrella plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0027] See also Figure 1-3A foundation pit detection device includes: a base 11, a vertical tube 12 is arranged on the top of the base 11; a lifting rod 13, the bottom of which is inserted into the interior of the vertical tube 12; a reflective prism 14, which is arranged on the top of the lifting rod 13; when in use, the reflective prism 14 is placed on the detection point, and the principle of using it with a total station is that the main function of the reflective prism is to deflect or reflect the light path. The total station sends out a light signal, receives the light signal reflected from the reflective prism, calculates the phase shift of the light signal, etc., thereby indirectly obtaining the time for light to pass, and finally measures the distance from the total station to the reflective prism.

[0028] The bottom inner wall of the lifting rod 13 is provided with an adjustment assembly 2, and the adjustment assembly 2 includes: a slide groove 21, which is opened on the front surface of the vertical tube 12; a plurality of fixed plates 22, which are arranged and arranged on the inner walls of both sides of the vertical tube 12; a slider 23, which is slidably arranged inside the slide groove 21 and connected to the bottom outer wall of the lifting rod 13; a T-shaped rod 24, the bottom of which passes through the inner wall of the lifting rod 13 and passes through the slider 23; a spring 25, which is symmetrically arranged at the top of the T-shaped rod 24 and connected to the inner wall of the lifting rod 13; a connecting rod 26, which is symmetrically hinged and arranged on both sides of the T-shaped rod 24; a telescopic rod 27, which symmetrically passes through the inner wall of the lifting rod 13, and one end is hinged to the other end of the connecting rod 26; and two clamping plates 28, which are arranged and arranged at one end of the telescopic rod 27. The thickness of the clamping plate 28 fits the gap between the two fixed plates 22. The adjustment assembly 2 also includes: a conical block 281, which is arranged at one end of the card plate 28. The adjustment assembly 2 also includes: a pull button 29, which is arranged at the tail end of the T-shaped rod 24. When the height is adjusted during use, the pull button 29 is pulled to stretch the spring 25 of the T-shaped rod 24. At this time, the connecting rod 26 rotates to pull the card plate 28 so that the card plate 28 moves out from the gap between the two fixed plates 22. At this time, the position of the lifting rod 13 inside the vertical tube 12 can be adjusted by sliding up and down, and the height of the reflective prism 14 can be adjusted. After adjusting to a suitable position, the pull button 29 is released. At this time, the spring 25 is reset to pull the T-shaped rod 24 to drive the connecting rod 26 to rotate so that the card plate 28 is inserted into the gap between the two fixed plates 22. During insertion, the setting of the conical block 281 can better insert the card plate 28 into the gap. At the same time, the thickness of the card plate 28 is the same as the gap between the two fixed plates 22, which can make the fixation more stable. After the adjustment is completed, it can be used. Example

[0029] An auxiliary component is added based on the first embodiment;

[0030] See also Figure 1-3The outer wall of the lifting rod 13 and the top of the reflective prism 14 are provided with an auxiliary component 3, and the auxiliary component 3 includes: a baffle 31. It is arranged at the bottom of the lifting rod 13. The setting of the baffle 31 can prevent the lifting rod 13 from being pulled out from the inside of the vertical pipe 12. The auxiliary component 3 also includes: a size gauge 32, which is arranged on the front surface of the lifting rod 13. The size gauge 32 can adjust the height of the reflective prism 14 as needed, which is more conducive to the accuracy of adjustment. The auxiliary component 3 also includes: an umbrella plate 33, which is arranged on the top of the reflective prism 14. The setting of the umbrella plate 33 can block rain and sunlight to prevent rain from damaging the reflective prism 14 and sunlight from interfering with the use of the reflective prism 14.

[0031] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A foundation pit detection device, comprising: A base (11), wherein a riser (12) is provided on the top of the base (11); A lifting rod (13), the bottom of which is inserted into the interior of the vertical pipe (12); A reflective prism (14) is arranged on the top of the lifting rod (13); The invention is characterized in that an adjustment component (2) is provided on the inner side wall of the bottom of the lifting rod (13), and the adjustment component (2) comprises: A slide groove (21) is provided on the front surface of the vertical pipe (12); A plurality of fixing plates (22) are provided, and are arranged on the inner side walls of both sides of the vertical pipe (12); A sliding block (23) is slidably disposed inside the sliding groove (21) and is connected to the bottom outer wall of the lifting rod (13); A T-shaped rod (24), the bottom of which passes through the inner wall of the lifting rod (13) and passes through the sliding block (23); A spring (25) is symmetrically arranged at the top end of the T-shaped rod (24) and connected to the inner side wall of the lifting rod (13); A connecting rod (26) symmetrically hingedly arranged on both sides of the T-shaped rod (24); A telescopic rod (27) symmetrically passes through the inner wall of the lifting rod (13), and one end of the telescopic rod is hinged to the other end of the connecting rod (26); Two clamping plates (28) are provided, both of which are arranged at one end of the telescopic rod (27).

2. A foundation pit detection device according to claim 1, characterized in that: The thickness of the clamping plate (28) fits the gap between the two fixing plates (22).

3. A foundation pit detection device according to claim 1, characterized in that: The regulating component (2) further comprises: The conical block (281) is arranged at one end of the clamping plate (28).

4. A foundation pit detection device according to claim 1, characterized in that: The regulating component (2) further comprises: A pull button (29) is arranged at the rear end of the T-shaped rod (24).

5. A foundation pit detection device according to claim 1, characterized in that: An auxiliary component (3) is provided on the outer side wall of the lifting rod (13) and the top of the reflecting prism (14), and the auxiliary component (3) comprises: A baffle (31) is arranged at the bottom of the lifting rod (13).

6. A foundation pit detection device according to claim 5, characterized in that: The auxiliary component (3) further comprises: A dimension gauge (32) is arranged on the front surface of the lifting rod (13).

7. A foundation pit detection device according to claim 5, characterized in that: The auxiliary component (3) further comprises: An umbrella-shaped plate (33) is arranged on the top of the reflecting prism (14).

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