CN217359134U

CN217359134U - Can detect mud sampling device of sediment thickness

Info

Publication number: CN217359134U
Application number: CN202220962049.5U
Authority: CN
Inventors: 黄庆亮; 叶浩然; 赵海棠; 潘峰
Original assignee: CREEC Chengdu Survey Design and Research Co Ltd
Current assignee: CREEC Chengdu Survey Design and Research Co Ltd
Priority date: 2022-04-25
Filing date: 2022-04-25
Publication date: 2022-09-02
Anticipated expiration: 2032-04-25

Abstract

The utility model belongs to the technical field of bored pile, underground continuous wall construction detection, a can detect mud sampling device of sediment thickness is disclosed, in order to solve hole bottom mud sampling test and sediment thickness detection and adopt two sets of equipment respectively and the prison detection efficiency who leads to hangs down the problem. The utility model discloses a barrel that comprises inner tube and urceolus, the upper end of urceolus has set the cover, the lower extreme of cover extends and is formed with the lateral wall, be provided with between the upper end of inner tube and the cover and be used for carrying out the pretension spring of pretension to the cover, set up on the lateral wall a plurality of rectangular form thick liquid mouths of getting that are, the lower extreme of urceolus has set the chassis, the centre bore has been seted up corresponding to the position of inner tube on the chassis. The utility model discloses realize hole bottom mud sample and sediment thickness detection and go on in step to solved hole bottom mud sampling device and got thick liquid mouthful jam, seal structure unreliable, sediment thickness detection error is big, the not high scheduling problem of reliability.

Description

Can detect mud sampling device of sediment thickness

Technical Field

The utility model belongs to the technical field of bored pile, underground continuous wall construction detection, concretely relates to can detect mud sampling device of sediment thickness.

Background

The construction of underground continuous wall or cast-in-situ bored pile is carried out by punching and pouring reinforced concrete under slurry protecting wall. Before concrete is poured, hole cleaning operation is generally carried out, and the hole cleaning effect is mainly determined by whether the sediment thickness and the hole bottom slurry technical indexes meet the requirements or not. The sediment thickness is an important factor influencing the vertical bearing capacity of the cast-in-place pile or the diaphragm wall, and the maintenance of good hole bottom slurry performance is an important technical measure for controlling the sediment thickness. The related technical specification makes clear regulation on the performance index of the slurry within 500mm of the bottom of the hole and has strict requirements on the thickness of the sediment. Therefore, after the cast-in-place pile is formed into a hole or the ground is connected with a wall to form a groove, the slurry at the bottom of the hole needs to be sampled and detected before concrete is poured, and the thickness of sediment at the bottom of the hole needs to be detected.

Most of the existing slurry sampling devices are designed into a cylindrical structure, the cylindrical structure comprises a cylinder cover, a cylinder body and a pull rope, the device with the arbitrary depth sampling function is further designed with a sealing structure, and the device made of the cylinder body with lighter material is further additionally provided with a balance weight so as to overcome the buoyancy of slurry to an empty cylinder. For example, application number is 201520735196.9's utility model discloses a totally closed pile foundation pore-forming mud sampling barrel of free type, including the sampling bucket, the sampling bucket top is equipped with the upper cover plate, the upper cover plate is equipped with down turns over 5 mm's outer edge, terminal surface fixedly connected with upper cover plate anticreep pole under the upper cover plate, sampling bucket both sides wall is equipped with the spacing pipe of upper cover plate anticreep, upper cover plate anticreep pole runs through the spacing pipe of upper cover plate anticreep, and upper cover plate anticreep pole lower extreme is equipped with the enlarged footing, the enlarged footing is located the spacing pipe below of upper cover plate anticreep, the terminal surface is equipped with the bottom plate under the sampling bucket, be equipped with the centre bore on the bottom plate terminal surface, swing joint has the rubber combination apron in the centre bore, the upper cover plate top is equipped with the hoist cable, the hoist cable both ends are connected with the sampling bucket side, the hoist cable upper end is equipped with the steel wire rope. In the process of sinking the sampling bucket, when putting the sampling bucket down, mud freely washes out sampling bucket bottom plate and upper cover plate, makes the interior mud construction of stake hole run through in the sampling bucket, when waiting to lift the sampling bucket, because the gravity of mud freely seals sampling bucket bottom plate and upper cover plate. Thereby utilizing the sampling cylinder to finish the sampling of the slurry.

The sediment thickness detection device commonly used in the construction site is mostly a hanging hammer, comprises a heavy hammer and a lifting rope, and is mainly used for judging whether the heavy hammer at the rope end touches the bottom by means of hand feeling of a measurer. Based on the principle of the heavy hammer method, the technical personnel also invent a device for detecting the cake by the measuring pin, which comprises a lifting rope, the measuring pin and the measuring cake sleeved on the measuring pin, wherein the measuring cake cannot penetrate into the sediment, and the difference value of the depth of the measuring cake touching the bottom of the measuring pin is the sediment thickness. For example, the utility model with application number 201921973543.6 discloses a measuring instrument for the thickness of sediment at the bottom of a pile, which comprises a measuring cake provided with a through hole which penetrates up and down, and a first measuring rope marked with scale marks is connected at the top of the measuring cake; and through the through-hole is worn to locate survey the cake and can for survey the survey probe that the cake reciprocated, the top is connected with and is marked scale mark and be on a parallel with the second measuring rope of first measuring rope, the bottom of measuring probe with when surveying the bottom surface of cake level, first measuring rope with the zero scale of second measuring rope aligns survey the bottom surface subsides of cake and establish the sediment and stop sinking and when the measuring probe continues to sink to the sediment bottom, the zero scale of second measuring rope for the distance of the zero scale's of first measuring rope removal is sediment thickness promptly. When the bottom surface of the measuring cake is attached to the sediment and stops sinking, and the measuring needle continues to sink to the bottom of the sediment, the moving distance of the zero scale of the second measuring rope relative to the zero scale of the first measuring rope is the sediment thickness.

Different methods and devices for sampling hole bottom slurry and detecting sediment thickness generally require constructors to operate different devices to respectively realize hole bottom slurry sampling and sediment thickness detection, so that the detection time is long, and the detection efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve hole bottom mud sampling test and sediment thickness detection and adopt two sets of equipment respectively and the supervision detection efficiency who leads to is low problem, and provide a can detect the mud sampling device of sediment thickness, can carry out mud sampling test and sediment thickness simultaneously and detect, improve the efficiency of hole bottom mud sampling test and sediment thickness detection greatly.

For solving the technical problem, the utility model discloses the technical scheme who adopts is:

the utility model provides a can detect mud sampling device of sediment thickness, its characterized in that includes the barrel that comprises inner tube and urceolus, form the cavity that is used for holding mud between inner tube and the urceolus, the upper end of urceolus sets the cover, the lower extreme of cover extends to be formed with be used for stretching into the urceolus and with the lateral wall of urceolus inner wall mutual adaptation, be provided with between the upper end of inner tube and the cover and be used for carrying out the pretension spring of pretension to the cover, set up a plurality ofly and be long banding thick liquid mouthful of getting on the lateral wall, the lower extreme of urceolus sets the chassis, set corresponding to the position of inner tube on the chassis and seted up the centre bore, the inner tube sets and is used for detecting sediment thickness and the lower extreme is most advanced measuring staff, the upper end of measuring staff stretches into in the inner tube, the centre bore that the lower extreme chassis of measuring staff worn out.

In some embodiments, a friction assembly for clamping the measuring rod is arranged on the chassis, the friction assembly comprises friction blocks located on two sides of a central hole of the chassis, the friction blocks are connected with sliding blocks through springs, one end of each spring is connected with the friction block, the other end of each spring is connected with the sliding block, the chassis comprises a shell, a threaded hole is formed in the shell, a threaded rod is arranged in the threaded hole, and one end of the threaded rod penetrates through the threaded hole in the side wall of the shell and is connected with the sliding block.

In some embodiments, the screw is provided with a nut for locking the screw.

In some embodiments, baffles are arranged in the housing in parallel up and down, side plates are connected to two sides of the two baffles, and the baffles and the side plates form a slide way for the sliding block to slide.

In some embodiments, the two side walls of the outer barrel are symmetrically provided with limit screws, and the limit screws extend into the pulp taking port on the side wall of the barrel cover.

In some embodiments, the two side walls of the outer barrel are symmetrically provided with lifting lugs for bundling the lifting barrel rope.

In some embodiments, a groove is formed in the side wall of the measuring rod along the length direction of the measuring rod, and a protrusion which is mutually matched with the groove and used for limiting the measuring rod is arranged at the bottom of the inner cylinder.

In some embodiments, the upper end of the cylinder cover is provided with a pull rope handle for bundling the cover opening rope.

In some embodiments, a water-proof plug is arranged at the position of the bottom of the shell corresponding to the central hole.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses a mud sampling device that can detect sediment thickness is in the use, pull out the measuring staff from the inner tube until the top of recess blocks with the arch of inner tube bottom earlier, then carry and draw a string rope and transfer whole device until the measuring staff pours into the sediment until the measuring staff touches sediment bottom, the buoyancy that the barrel received for empty section of thick bamboo at this moment is also bigger, barrel can not slide along the measuring staff after lax and carry a string rope yet (namely the measuring staff is under the static friction power of friction pack, barrel and measuring staff can not take place relative movement), pole to be measured pours into sediment bottom and whole device no longer sinks the back, lax and carry a string rope and upwards carry and draw a string rope that uncaps, the cylinder closure is opened under the traction effect of uncapping rope, hole bottom mud gets into the barrel from the thick liquid mouth of getting of lateral wall inside, along with mud gets into the barrel and holds between the cylinder and hold between the pressure and discharge the air in the barrel, the buoyancy that whole device received reduces, the barrel overcomes the static friction power between measuring staff and the friction pack and slides down along the measuring staff, until the chassis slides to the position of the upper surface of the sediment and is supported by the sediment to stop. At this moment, sediment thickness measurement finishes (namely the length that the measuring staff exposes the chassis is sediment thickness promptly), the rope of uncapping relaxs, the cover self-closing under the effect of pretension spring (namely the inside realization of the inside of the lateral wall injection barrel of cover under the effect of pretension spring is sealed) to accomplish the hole bottom mud sample, then take out whole device through carrying the section of thick bamboo rope, the mud in the barrel is hole bottom mud promptly, the length that the measuring staff exposes the chassis is sediment thickness promptly, thereby realize sediment thickness detection and mud sample.

The utility model discloses a to get a thick liquid section of thick bamboo and measuring staff and combine together to have realized that hole bottom mud sample and sediment thickness detect and go on in step, avoided using different equipment to carry out twice operation, reduced the construction step, improve detection efficiency.

The utility model discloses a design of pretension spring on the cover to guarantee that the device gets thick liquid in set position, and in sealed cooperation between the lateral wall of cover and the barrel can prevent that the mud of other degrees of depth from entering into the barrel, ensure the accuracy of mud sample.

The utility model discloses a get thick liquid mouth and adopt long banding design to evenly set up on the outer periphery wall of lateral wall, thereby make each get thick liquid mouth can enough ensure that mud can be smooth enter into the barrel inside, can prevent again simultaneously that other debris (for example garrulous soil sediment) from entering into the barrel and polluting the mud sample.

The utility model discloses a friction pack can control the frictional force size between measuring staff and the clutch blocks, prevents that the measuring staff pine from taking off or locking, improves the reliability that sediment thickness detected.

Drawings

Fig. 1 is a schematic view of an external structure according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a cross-sectional view of the present invention;

FIG. 3 is a schematic view of the internal structure of the chassis of the present invention;

FIG. 4 is a schematic view of the structure of the measuring rod with the matching of the groove and the protrusion;

fig. 5 is a schematic structural view of an embodiment of the water stopper of the present invention;

FIG. 6 is a schematic view of the whole device of the present invention before the slurry outlet is opened when the device is lowered to the bottom of the contact hole of the measuring rod;

FIG. 7 is a schematic view of the whole device of the present invention after the slurry inlet is opened to take slurry, the cylinder slides along the measuring rod until the chassis contacts the upper surface of the sediment;

the labels in the figure are: 1. a cylinder cover; 11. a rope pulling handle; 12. a cover plate; 121. a sealing groove; 13. a side wall; 131. a pulp taking port; 2. a barrel; 21. an outer cylinder; 211. lifting lugs; 212. a limit nut; 22. an inner barrel; 221. a protrusion; 3. a chassis; 31. a housing; 32. a friction component; 321. a friction block; 322. a spring; 323. a slider; 324. a screw; 325. a nut; 326. a baffle plate; 327. a side plate; 33. a water-proof plug; 4. a measuring bar; 41 grooves; 5. a return spring; 6. a cylinder lifting rope; 7. and (4) opening the cover.

Detailed Description

The present invention will be further described with reference to the following examples, which are only some, but not all, of the examples of the present invention. Based on the embodiments in the present invention, other embodiments used by those skilled in the art without creative efforts all belong to the protection scope of the present invention.

With the attached drawings, the utility model discloses a can detect mud sampling device of sediment thickness, including barrel 2, barrel 2 includes inner tube 22 and urceolus 21, form the cavity that is used for holding mud between inner tube 22 and the urceolus 21, the upper end of urceolus 21 sets up cover 1, the lower extreme extension of cover 1 is formed with and is used for stretching into the urceolus 21 and with the lateral wall 13 of urceolus 21 inner wall looks adaptation each other, be provided with between the upper end of inner tube 22 and the cover 1 and be used for carrying out the pretension spring 5 of pretension to cover 1, set up a plurality of long banding thick liquid mouths 131 of getting on the lateral wall 13, the lower extreme of urceolus 21 sets up chassis 3, set up the centre bore in the position that corresponds to inner tube 22 on chassis 3, inner tube 22 sets up be used for detecting the sediment thickness and the lower extreme be most advanced measuring staff 4, the upper end of measuring staff 4 stretches into in the inner tube 22, the lower end of the measuring rod 4 penetrates through a central hole of the chassis 3.

Preferably, a sealing groove 121 sealed with the upper end of the outer cylinder 21 is formed in the cylinder cover 1, a sealing ring is placed in the sealing groove 121, when the cylinder cover 1 is closed with the outer cylinder 21 under the action of the pre-tightening spring 5, the sealing groove 121 and the top of the outer cylinder 21 are matched with each other to realize sealing between the cylinder cover 1 and the outer cylinder 21, and the problem that the sealing structure of the existing hole bottom slurry sampling device is unreliable is solved.

In the specific implementation process, the slurry taking ports 131 are annularly arranged along the periphery of the side wall 13, the number of the slurry taking ports 131 is not less than 4, and the width of the slurry taking ports 131 is not more than 3 cm.

In some embodiments, the chassis 3 includes a housing 31, a friction assembly 32 configured in the housing 31 for clamping the measuring rod 4, the friction assembly 32 includes friction blocks 321 located on two sides of a central hole of the chassis, the friction blocks 321 are connected with sliding blocks 323 through springs 322, one end of each spring 322 is connected with the friction block 321, the other end of each spring 322 is connected with the sliding block 323, a threaded hole is formed in the housing 31, the threaded hole is configured with a screw 324, and one end of the screw 324 passes through the threaded hole in the side wall of the housing 31 and is connected with the sliding block 323. Preferably, the side of the friction block 321 facing the central hole of the housing has an arc surface adapted to the measuring rod 4, so as to increase the contact area between the friction block and the measuring rod 4. The central hole on the chassis is arranged at the central position of the shell.

Preferably, two friction assemblies 32 are symmetrically installed in the housing 31, so that the measuring rod 4 is clamped by the two friction assemblies 32, and the two sides of the measuring rod 4 are stressed in a balanced manner.

In some embodiments, the screw 324 is provided with a nut 325 for locking the screw, and the screw 324 is screwed with the housing 31 and then locked by the nut 325, thereby fixing the position of the screw 324. When the friction force between the friction block 321 and the measuring rod 4 needs to be adjusted, the nut 325 is loosened to rotate the screw 324, so that the length of the screw 324 extending into the shell 31 is adjusted, the distance between the friction block 321 and the sliding block 322 is adjusted, the compression length of the spring 322 is adjusted, and the purpose of adjusting the friction force is achieved.

In some embodiments, baffles 326 are disposed in the housing 31 in a vertically parallel manner, two sides of the two baffles 326 are connected with side plates 327, and the baffles 326 and the side plates 327 form a sliding channel for the sliding of the slider 321, that is, a cavity formed by the baffles 326 and the side plates 327 matches with an external shape of the slider 321, so that the slider 321 can slide. Wherein, the baffle is seted up the through-hole corresponding to the centre bore of shell (chassis) to the measuring staff can pass.

In some embodiments, the two side walls of the outer cylinder 21 are symmetrically provided with limit screws 212, and the limit screws 212 extend into the slurry taking port 13 of the side wall 13 of the cylinder cover 1, so that the position of the cylinder cover 1 is defined by the cooperation of the limit screws 212 and the slurry taking port 131.

In some embodiments, the two side walls of the outer cylinder 21 are symmetrically provided with lifting lugs 211 for bundling the lifting cylinder rope 6. In the implementation process, the lower end of the lifting cylinder rope 6 is divided into two strands which are respectively bound on the two lifting lugs 211, so that the whole device is extracted by the lifting cylinder rope 6.

In some embodiments, a groove 41 is formed in the side wall of the inner cylinder 4 along the length direction of the inner cylinder, and a protrusion 221 which is mutually matched with the groove 41 and used for limiting the measuring rod 4 is arranged on the housing 31 of the chassis 3.

In some embodiments, the protrusion 221 is disposed at the bottom of the inner barrel 21, such that the position of the measuring rod 4 is defined by the interaction between the protrusion 221 and the elongated recess 1.

In some embodiments, the upper end of the cover 1 is provided with a pull-cord grip 11 for strapping the lid-opening cord 7.

In some embodiments, the bottom of the housing 31 is provided with a water-proof plug 33 at a position corresponding to the central hole, and the water-proof plug 33 is installed at the central hole of the housing and is attached to the measuring rod 4. Preferably, the position of the water stop plug 33 corresponding to the groove 41 is provided with a projection, and the projection is matched with the groove 41 of the groove measuring rod 4.

The utility model discloses a mud sampling device that can detect sediment thickness is in the use, pull out the measuring staff from the inner tube until the top of recess blocks with the arch of inner tube bottom earlier, then carry and draw a string rope and transfer whole device until the measuring staff pours into the sediment until the measuring staff touches sediment bottom, the buoyancy that the barrel received for empty section of thick bamboo at this moment is also bigger, barrel can not slide along the measuring staff after lax and carry a string rope yet (namely the measuring staff is under the static friction power of friction pack, barrel and measuring staff can not take place relative movement), pole to be measured pours into sediment bottom and whole device no longer sinks the back, lax and carry a string rope and upwards carry and draw a string rope that uncaps, the cylinder closure is opened under the traction effect of uncapping rope, hole bottom mud gets into the barrel from the thick liquid mouth of getting of lateral wall inside, along with mud gets into the barrel and holds between the cylinder and hold between the pressure and discharge the air in the barrel, the buoyancy that whole device received reduces, the barrel overcomes the static friction power between measuring staff and the friction pack and slides down along the measuring staff, until the chassis slides to the position of the upper surface of the sediment and is supported by the sediment to stop. At this moment, sediment thickness measurement finishes (the length that the measuring staff exposes the chassis promptly is sediment thickness), the rope of uncapping of lax, the cover self-closing under the effect of pretension spring (the inside that the lateral wall of cover penetrated the barrel under the effect of pretension spring promptly realizes sealing), thereby accomplish hole bottom mud sample, then take out whole device through carrying a section of thick bamboo rope, the mud in the barrel is hole bottom mud promptly, the length that the measuring staff exposes the chassis promptly is sediment thickness, thereby realize sediment thickness detection and mud sample.

The utility model discloses a design of pretension spring on the cover to guarantee that the device gets thick liquid in the set position, and the sealed cooperation between the lateral wall of cover and the barrel can prevent that the mud of other degree of depth from entering into the barrel in, ensure the accuracy of mud sample. The utility model discloses a get thick liquid mouth and adopt long banding design to evenly set up on the outer periphery wall of lateral wall, thereby make each get thick liquid mouth can enough ensure that mud can be smooth enter into the barrel inside, can prevent again simultaneously that other debris (for example garrulous soil sediment) from entering into in the barrel and polluting the mud sample. Thereby solving the problems of blockage of a slurry taking port and unreliable sealing structure of the middle-hole bottom slurry sampling device in the prior art

Claims

1. The utility model provides a can detect mud sampling device of sediment thickness, its characterized in that includes the barrel that comprises inner tube and urceolus, form the cavity that is used for holding mud between inner tube and the urceolus, the upper end of urceolus sets the cover, the lower extreme of cover extends to be formed with and is used for stretching into the urceolus and with the mutual lateral wall of urceolus inner wall adaptation, be provided with the pretension spring that is used for carrying out the pretension to the cover between the upper end of inner tube and the cover, set up a plurality of being long banding thick liquid mouths of getting on the lateral wall, the lower extreme of urceolus sets the chassis, the centre bore has been seted up corresponding to the position of inner tube on the chassis, the inner tube sets and is used for detecting sediment thickness and the lower extreme is most advanced measuring staff, the upper end of measuring staff stretches into in the inner tube, the centre bore that the chassis was worn out to the lower extreme of measuring staff.

2. The mud sampling device capable of detecting the thickness of the sediments according to claim 1, wherein a friction assembly for clamping the measuring rod is arranged on the chassis, the friction assembly comprises friction blocks positioned on two sides of a central hole of the chassis, the friction blocks are connected with sliding blocks through springs, one end of each spring is connected with the friction block, the other end of each spring is connected with the sliding block, the chassis comprises a shell, a threaded hole is formed in the shell, a threaded rod is arranged on the threaded hole, and one end of the threaded rod penetrates through the threaded hole in the side wall of the shell and is connected with the sliding block.

3. The mud sampling device capable of detecting the thickness of the sludge according to claim 2, wherein the screw is provided with a nut for locking the screw.

4. The mud sampling device capable of detecting the thickness of the sediments according to claim 2, wherein the shell is internally provided with baffle plates which are arranged in parallel up and down, two sides of the two baffle plates are connected with side plates, and the baffle plates and the side plates form a slide way for sliding of the slide block.

5. The mud sampling device capable of detecting the thickness of the sediments according to claim 1, wherein the two side walls of the outer cylinder are symmetrically provided with limit screws, and the limit screws extend into the slurry taking port on the side wall of the cylinder cover.

6. The mud sampling device capable of detecting the thickness of the sediments according to any one of claims 1 to 5, wherein lifting lugs for bundling the cylinder lifting rope are symmetrically arranged on two side walls of the outer cylinder.

7. The mud sampling device capable of detecting the thickness of the sediments as claimed in claim 2, wherein a groove is formed in the side wall of the measuring rod along the length direction of the measuring rod, and a protrusion which is mutually matched with the groove and used for limiting the measuring rod is arranged at the bottom of the inner cylinder.

8. The mud sampling device capable of detecting the thickness of the sediments according to claim 1, wherein the upper end of the cylinder cover is provided with a pull rope handle for bundling a cover opening rope.

9. The mud sampling device capable of detecting the thickness of the sediments according to claim 2, wherein the bottom of the casing is equipped with a water-proof plug at the position corresponding to the central hole.