CN215210945U - Light dynamic sounding instrument drawing device - Google Patents
Light dynamic sounding instrument drawing device Download PDFInfo
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- CN215210945U CN215210945U CN202120668559.7U CN202120668559U CN215210945U CN 215210945 U CN215210945 U CN 215210945U CN 202120668559 U CN202120668559 U CN 202120668559U CN 215210945 U CN215210945 U CN 215210945U
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- telescopic
- annular sleeve
- pry bar
- extractor
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to an instrument class technical field mainly relates to light-duty power sounding appearance pull-out ware. The light dynamic penetrometer extractor is characterized in that a telescopic bracket is connected with a telescopic pry bar through a transmission power shaft, and the telescopic pry bar rotates by taking the transmission power shaft as an axis; one end of the telescopic pry bar is provided with an annular sleeve assembly, the feeler lever penetrates through the annular sleeve assembly, and the annular sleeve assembly is located below the feeler hammer pad. The other end of the telescopic pry bar is telescopic. The annular sleeve component is an annular sleeve formed by closing two semi-arc cylindrical shapes and is fixed through a bolt. The utility model discloses use the sounding hammer to fill up as the application of force point, through the height of adjusting telescopic bracket, along with the position of the position adjustment drive power axle of sounding hammer pad, utilize the frictional force between annular sleeve subassembly and the feeler lever to and the supporting force of annular sleeve subassembly to the sounding hammer pad extracts the feeler lever. Saving manpower, material resources and time.
Description
Technical Field
The utility model relates to an instrument class technical field mainly relates to light-duty power sounding appearance pull-out ware.
Background
At present, in the test of rechecking the bearing capacity of a foundation and checking whether a basement has a soft lying layer or not after a foundation pit is excavated, the test method is often applied to a detection mode of a light dynamic penetrometer (a conical probe with a certain specification is driven into soil by using certain hammering energy and the hammer weight of 10kg, the category of the soil layer is judged according to the number of the driven hammering, the engineering property of the soil is determined, and the comprehensive evaluation is made on the foundation soil).
When the light dynamic penetration test is used, the following situations are frequently encountered, when the geological situation is abnormal, the penetration depth of the light dynamic penetration test needs to be increased, and for the silty soil and the silty clay in a soft plastic-plastic state, when the penetration depth exceeds 1m after the test is finished, the probe rod is difficult to pull out manually, and particularly after the penetration depth exceeds 3m-4m, the probe rod cannot be pulled out manually at all. The current frequent solutions for the need of a large penetration depth are:
(1) in order to make the feeler lever easy to pull out after the test is finished, the feeler lever usually penetrates 90cm into the soil, is pulled out manually, then a ninety cm pit is dug by a shovel, and then the penetration test is continued. The method greatly limits the penetration depth, generally, the depth of about 1.5m is manually dug to the limit, and simultaneously, the time and the labor are greatly wasted.
(2) When the penetration depth needs to be increased, a mechanical (excavator) downward digging mode can be adopted sometimes, although the time is greatly saved, the machine is limited by site conditions sometimes, and the machine is difficult to enter the site. And is also limited by the mechanical excavation depth, and meanwhile, the surface foundation soil is seriously disturbed, so that the quality of the next construction is influenced.
(3) The automatic light dynamic sounding instrument has high cost and heavy instrument, and is not suitable for carrying.
The existing auxiliary equipment has defects in design.
The auxiliary equipment is heavy and inconvenient to carry.
Secondly, when the conventional equipment is used for assisting in pulling out the feeler lever, the phenomenon of wire stripping and sliding often occurs when the penetration depth is deep.
SUMMERY OF THE UTILITY MODEL
The utility model aims at ensuring that the penetration depth of the dynamic sounding is too deep, and adopting a matched mechanical device to extract the feeler lever when the mode of extracting by manpower is difficult. Therefore, the penetration depth is not limited due to the problem of difficult pulling-out, and accurate data is provided for more accurately testing the physical and mechanical properties of the bearing layer and the subjacent layer below the substrate.
In order to achieve the above purpose, the technical scheme of the utility model is as follows: the light dynamic penetrometer extractor is characterized in that a telescopic bracket is connected with a telescopic pry bar through a transmission power shaft, and the telescopic pry bar rotates by taking the transmission power shaft as an axis; one end of the telescopic pry bar is provided with an annular sleeve assembly, the feeler lever penetrates through the annular sleeve assembly, and the annular sleeve assembly is located below the feeler hammer pad.
The light dynamic sounding appearance pull-out ware of foretell, the other end length of flexible pinch bar is the telescopic.
In the light dynamic sounding appearance extractor, the annular sleeve component is an annular sleeve formed by closing two semi-arc-shaped cylinders and is fixed by a bolt.
In the light dynamic penetrometer extractor, the outer diameter of the sounding hammer pad is larger than that of the annular sleeve component.
According to the light dynamic penetrometer extractor, the telescopic supports are three-stage telescopic, and all stages of the telescopic supports are fixed through the telescopic support clamping holes.
According to the light dynamic penetrometer extractor, the horizontal distance between the clamping holes of the telescopic supports is 30cm, and three clamping holes of the telescopic supports are arranged in the horizontal direction.
In the light dynamic sounding instrument extractor, each stage of the telescopic bracket is provided with a transmission force shaft hole.
The utility model has the advantages that:
when the penetration depth of the feeler lever is 3-5m or even deeper, the manual hard pulling mode is difficult to pull out, the mechanical operation is difficult to realize, and the feeler lever is pulled out in limited manpower and short time. On the premise of ensuring the physical and mechanical properties of the underlying soil of the base bearing layer, manpower, material resources and time are saved.
For railway engineering, the points frequently detected on the project are many and dense, heavy equipment is difficult to enter the field due to site limitation, the supporting equipment is portable and easy to carry, the support is designed to be telescopic, and the height of the telescopic support is only 0.4 m.
Different from the previous design, the previous design clamps the feeler lever by the sleeve, and the feeler lever is pulled out by using the friction force between the feeler lever and the sleeve, but according to practical experience, when the penetration depth of the feeler lever is deep (more than 3m in a soft plastic soil layer), the friction force between the sleeve and the feeler lever is difficult to resist the friction force of a soft soil to the lever and the negative pressure generated in a hole, and the feeler lever is frequently released in a sliding way. The utility model discloses use the sounding hammer to fill up as the application of force point, through the height of adjusting telescopic bracket, along with the position of the position adjustment drive power axle of sounding hammer pad, utilize the frictional force between annular sleeve subassembly and the feeler lever to and the supporting force of annular sleeve subassembly to the sounding hammer pad extracts the feeler lever.
Drawings
Fig. 1 is a schematic structural diagram of a light dynamic penetrometer extractor.
Fig. 2 is a schematic view of a telescoping support.
Wherein 1, the telescopic bracket; 2-a power transmission shaft; 3, a telescopic pry bar; 4-clamping holes of the telescopic bracket; 5-feeler lever; 6-sounding hammer pad; 7-an annular sleeve assembly; 8-a bolt; 9-driving force shaft hole.
Detailed Description
Example 1
As shown in fig. 1 and 2, a light dynamic penetrometer extractor is characterized in that a telescopic bracket 1 is connected with a telescopic pry bar 3 through a transmission power shaft 2, and the telescopic pry bar 2 rotates by taking the transmission power shaft 2 as an axis; one end of the telescopic pry bar 3 is provided with an annular sleeve component 7, the feeler lever 5 penetrates through the annular sleeve component 7, and the annular sleeve component 7 is positioned below the feeler hammer pad 6. The other end of the telescopic pry bar 3 is telescopic in length.
The annular sleeve component 7 is an annular sleeve formed by closing two semi-arc cylindrical parts and is fixed by a bolt.
The outer diameter of the sounding hammer pad 6 is larger than that of the annular sleeve assembly 7.
The telescopic support 1 is three-stage telescopic, and is fixed between each stage through a telescopic support clamping hole 4.
The horizontal distance between the telescopic bracket clamping hole clamping holes 4 is 30cm, and three telescopic bracket clamping hole clamping holes 4 are arranged in the horizontal direction.
Each stage of the telescopic bracket 1 is provided with a transmission shaft hole 9.
The utility model discloses a use: when the feeler lever 5 needs to be pulled out, the height of the telescopic support 1 is adjusted, all the stages of the telescopic support 1 are fixed through telescopic support clamping holes 4, the power transmission shaft 2 penetrates through the telescopic pry bar 3 and the telescopic support 1, and the telescopic pry bar 2 rotates by taking the power transmission shaft 2 as an axis; two semi-arc tube shapes of the annular sleeve component 7 are opened and sleeved on the feeler lever 5, and the annular component 7 is locked by the bolt 8 after the feeler hammer pad 6 is closed. The annular sleeve component 7 is abutted to the lower portion of the sounding hammer pad 6, the length of the telescopic pry bar 3 is adjusted to change the length of a force arm, the handheld end of the telescopic pry bar 3 is pressed downwards, and the sounding rod 5 is pulled out through force application based on the lever principle.
According to calculation, when the feeler lever is pulled out by applying force each time, the fixed height position of the telescopic pry bar 3 can only pull out the feeler lever by 30-40cm, so that the telescopic support 1 is designed to be 3-level telescopic, the distance between clamping holes is 30cm, the telescopic support 1 is adjusted again according to the rising position of the feeler lever 5, a proper clamping hole is selected, and the steps are repeated. Until the feeler lever 5 is pulled out.
Claims (7)
1. The light dynamic sounding instrument extractor is characterized in that a telescopic bracket (1) is connected with a telescopic pry bar (3) through a transmission power shaft (2), and the telescopic pry bar (2) rotates by taking the transmission power shaft (2) as an axis; one end of the telescopic pry bar (3) is provided with an annular sleeve component (7), the feeler lever (5) penetrates through the annular sleeve component (7), and the annular sleeve component (7) is located below the feeler hammer pad (6).
2. A light-duty dynamic penetrometer extractor according to claim 1, characterized in that the other end of said telescopic lever (3) is telescopic in length.
3. A lightweight dynamic penetrometer extractor as claimed in claim 2, characterized in that said collar assembly (7) is a collar formed by two half arc cylindrical closures, secured by a pin.
4. A lightweight dynamic penetrometer extractor as claimed in claim 3, characterized in that the outer diameter of the contact hammer pad (6) is larger than the outer diameter of the annular sleeve member (7).
5. The light dynamic penetrometer extractor as recited in claim 4, characterized in that the telescopic bracket (1) is three-stage telescopic, and the telescopic bracket is fixed with the telescopic bracket through the telescopic bracket clamping hole (4).
6. The light-duty dynamic penetrometer extractor according to claim 5, characterized in that the horizontal distance between the telescopic bracket hole-locking holes (4) is 30cm, and three telescopic bracket hole-locking holes (4) are provided in the horizontal direction.
7. A light-duty dynamic penetrometer extractor according to claim 6, characterized in that the telescopic bracket (1) is provided with a transmission force shaft hole (9) at each stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120668559.7U CN215210945U (en) | 2021-04-01 | 2021-04-01 | Light dynamic sounding instrument drawing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120668559.7U CN215210945U (en) | 2021-04-01 | 2021-04-01 | Light dynamic sounding instrument drawing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215210945U true CN215210945U (en) | 2021-12-17 |
Family
ID=79445153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120668559.7U Active CN215210945U (en) | 2021-04-01 | 2021-04-01 | Light dynamic sounding instrument drawing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215210945U (en) |
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2021
- 2021-04-01 CN CN202120668559.7U patent/CN215210945U/en active Active
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