CN213267804U

CN213267804U - Heavy dynamic sounding instrument

Info

Publication number: CN213267804U
Application number: CN202021689788.9U
Authority: CN
Inventors: 李季; 秦林红; 詹平
Original assignee: Beijing China Railway Chengye Engineering Construction Supervision Co Ltd
Current assignee: Beijing China Railway Chengye Engineering Construction Supervision Co Ltd
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2021-05-25
Anticipated expiration: 2030-08-13

Abstract

The utility model relates to a heavy dynamic sounding appearance belongs to ground bearing capacity performance test device field, including feeler lever, the probe that is located feeler lever bottom and punching hammer, be provided with the hammer bolster on the feeler lever, punching hammer includes outer sleeve and the inner skleeve of coaxial setting, the inner skleeve is located the inside of inner skleeve, the internal diameter of outer skleeve is greater than the external diameter of inner skleeve, the bottom in the space between inner skleeve and the outer sleeve seals through the bottom plate, enclose into a open-top's chamber that holds between inner skleeve, outer skleeve and the bottom plate, top department between inner skleeve and the outer skleeve is provided with the cover that can dismantle the connection. This application can alleviate the weight of punching hammer at the in-process of transport to be convenient for carry the punching hammer.

Description

Heavy dynamic sounding instrument

Technical Field

The application relates to the technical field of foundation bearing capacity performance test devices, in particular to a heavy dynamic sounding instrument.

Background

At present, in the construction of house buildings, road engineering, municipal engineering and hydraulic engineering, a dynamic sounding experiment is carried out by using a dynamic sounding device so as to detect the bearing capacity of a foundation. The dynamic sounding device is suitable for various soils and is the most widely applied dynamic sounding device, namely a heavy dynamic sounding instrument.

The dynamic penetration test is to use certain hammering kinetic energy to drive cones of certain specifications into the soil to judge the change of a soil layer according to the resistance in the soil, mechanically stratify the soil layer, determine the physical and mechanical properties of the soil layer, make engineering geological evaluation on foundation soil and generally express the resistance of the soil by the number of impacts required for a certain distance in the soil. The heavy dynamic penetrometer mainly comprises a probe, a hammer pad, a feeler lever and a penetrating hammer, wherein during test, the probe is drilled into a detection point, the penetrating hammer freely falls at a falling distance of 76cm, the depth of the probe penetrating into the ground surface is recorded in time, the actually measured impact number of each penetrating 10cm is recorded, and the engineering geological evaluation of the bearing capacity of the foundation is carried out according to the impact number, so that a hammering test is completed.

The above prior art has the following disadvantages: the traditional heavy dynamic sounding instrument is heavy in weight, needs 63.5kg in weight to carry out detection tests, and the quality is usually concentrated on the punching hammer, and the traditional punching hammer is generally of an iron solid structure and is heavy in weight, so that in the aspect of transportation, the traditional iron solid punching hammer has great inconvenience.

Disclosure of Invention

The utility model provides a to prior art's not enough, the purpose of this application provides a heavy dynamic sounding appearance, and it can alleviate the weight of punching hammer at the in-process of transport to be convenient for carry the punching hammer.

The invention purpose of this application is realized through following technical scheme:

the utility model provides a heavy dynamic sounding appearance, includes feeler lever, is located the probe and the punching hammer of feeler lever bottom, be provided with the hammer bolster on the feeler lever, punching hammer is including outer sleeve and the inner skleeve of coaxial setting, the inner skleeve is located the inside of outer sleeve, the internal diameter of outer sleeve is greater than the external diameter of inner skleeve, the bottom in the space between inner skleeve and the outer sleeve seals through the bottom plate, enclose into a top open-ended chamber that holds between inner skleeve, outer skleeve and the bottom plate, top department between inner skleeve and the outer skleeve is provided with the cover of dismantling the connection.

Through adopting foretell technical scheme, can change original solid punching hammer of iron inside into hollow structure, greatly reduced its weight, when arriving experimental operation position, utilize material such as on-the-spot waste material, fill it in punching hammer's the chamber that holds, make its weight reach the requirement, reduced the weight of punching hammer in the transportation to save the strength that staff's transport punching hammer spent.

The present application may be further configured in a preferred example to: the cover can the inside that holds the chamber reciprocates, the top department that is located to hold the chamber is provided with the subassembly that pushes down that is used for exerting downward pressure to the cover, the edge of cover is provided with the opening that can make the subassembly that pushes down pass, the cover can the inside that holds the chamber rotates.

Through adopting foretell technical scheme, push down the subassembly and can make the cover carry out compaction to the filler. Through compaction filler, can prevent to shake garrulous, remove in holding the chamber with the filler when punching the hammer block of punching the heart.

The present application may be further configured in a preferred example to: the pressing component comprises a supporting block fixed at the top end of the accommodating cavity, a vertically arranged pressing bolt is connected to the supporting block in a threaded mode, and the bottom end of the pressing bolt is abutted to the barrel cover.

Through adopting foretell technical scheme, thereby can drive the lead screw downwards and drive the cover through rotating the bolt that pushes down and push down the action. Meanwhile, due to the adoption of threaded connection, when the punching hammer impacts the hammer pad, the barrel cover is not easy to move up and down under the extrusion of the pressing bolt.

The present application may be further configured in a preferred example to: the inside in holding the chamber is provided with the guided way of vertical setting, leave the distance that is greater than cover thickness between the top of guided way and the bottom of supporting shoe, the cover is located when holding the intracavity portion, the opening card on the cover is on the guided way.

Through adopting foretell technical scheme, can make the cover better fixed in holding the chamber, prevent its circumferencial direction rotation.

The present application may be further configured in a preferred example to: the outer side surface of the cylinder cover is provided with a handle.

Through adopting foretell technical scheme, because the cover stretches into the inside that holds the chamber completely, thereby set up two handles and can make things convenient for constructor to pull up the cover and take out the cover from holding the chamber.

The present application may be further configured in a preferred example to: the cylinder cover is provided with air holes.

Through adopting foretell technical scheme, can make the cover in the in-process of pushing down will hold the better discharge of the inside air in chamber, make the more smooth and easy removal of cover ability.

The present application may be further configured in a preferred example to: the barrel cover is provided with a plug which is plugged into the air hole so as to plug the air hole.

Through adopting foretell technical scheme, after the cover pushed down to the right place, can fill in the bleeder vent with the shutoff piece for it is sealed to hold the chamber, prevents that tiny filler wherein from flowing out from the bleeder vent.

The present application may be further configured in a preferred example to: the probe is detachably connected with the feeler lever.

By adopting the technical scheme, when the probe is damaged, the probe can be replaced. The probe can be taken down in the process of carrying the feeler lever, and the tip of the probe is prevented from accidentally injuring other workers.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the original solid iron piercing hammer is changed into a hollow structure, so that the weight of the piercing hammer is greatly reduced, when the piercing hammer reaches a test operation position, substances such as field waste and the like are filled into an accommodating cavity of the piercing hammer, the weight of the piercing hammer meets the requirement, the weight of the piercing hammer in the transportation process is reduced, and the labor for workers to carry the piercing hammer is saved;

2. the subassembly of pushing down can make the cover carry out the compaction to the filler, through the compaction filler, can prevent to shake the filler garrulous when punching the hammer block, removes in holding the chamber.

Drawings

FIG. 1 is a schematic overall structure diagram of a heavy-duty penetrometer in an embodiment of the present application;

FIG. 2 is an exploded view of a feed-through hammer barrel of a heavy-duty penetrometer in an embodiment of the present application;

fig. 3 is a schematic view of the internal structure of a containing cavity between an outer sleeve and an inner sleeve of a heavy-duty penetrometer perforating hammer in the embodiment of the application.

Reference numbers in the figures: 1. a feeler lever; 11. a hammer pad; 2. a probe; 3. punching hammer; 31. an outer sleeve; 311. a handrail; 32. an inner sleeve; 33. a base plate; 34. a cylinder cover; 341. a handle; 342. opening the gap; 343. air holes are formed; 344. a central bore; 35. a guide rail; 36. a support block; 37. pressing the bolt; 38. and (7) blocking.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the heavy dynamic penetrometer disclosed by the application comprises a long rod-shaped feeler lever 1, and a conical probe 2 is connected to the bottom end of the feeler lever 1 through threads. A disc-shaped hammer pad 11 is arranged on the rod body of the feeler lever 1, the hammer pad 11 is fixedly connected with the feeler lever 1, and an extension amount for the feeler lever 1 to extend into the ground is reserved between the hammer pad 11 and the probe 2. The hammer pad 11 is arranged coaxially with the feeler lever 1. The penetration hammer 3 is sleeved on the rod body of the feeler lever 1, the penetration hammer 3 is positioned above the hammer pad 11, and the penetration hammer 3 is connected with the feeler lever 1 in a sliding way. The piercing hammer 3 is located above the hammer pad 11.

When using heavy power sounding appearance, be vertical the placing with feeler lever 1, make feeler lever 1 bottom probe 2 insert in advance in the ground then make its free fall after lifting up heart-penetrating hammer 3 to carry out the hammering to the hammer bolster 11, along with heart-penetrating hammer 3 carries out the hammering to the hammer bolster 11, thereby make probe 2 constantly insert the inside on ground.

Referring to fig. 2 and 3, the piercing hammer 3 includes an inner sleeve 32 and an outer sleeve 31 coaxially disposed, and an inner diameter of the outer sleeve 31 is larger than an outer diameter of the inner sleeve 32. A bottom plate 33 is provided at the bottom end between the inner sleeve 32 and the outer sleeve 31, the bottom plate 33 closing the bottom end opening between the inner sleeve 32 and the outer sleeve 31. The inner sleeve 32, the outer sleeve 31 and the bottom plate 33 are integrally formed or fixedly connected by welding. The inner sleeve 32, the outer sleeve 31 and the bottom plate 33 enclose an open-topped receiving chamber therebetween. The inside packing that holds the chamber has the filler, and the filler can adopt grit, soil etc. of testing scene can fill into and hold the inside heavy object of chamber. Two handrails 311 are fixed to the outer wall of the outer sleeve 31, the two handrails 311 are arranged opposite to each other about the axis of the outer sleeve 31, the handrails 311 are cylindrical, and the axial direction of the handrails 311 is perpendicular to the axial direction of the piercing hammer 3.

A cover 34 is arranged between the outer sleeve 31 and the inner sleeve 32, and the cover 34 is of a circular ring structure. The central aperture 344 of the lid 34 is slidably connected to the outer wall of the inner sleeve 32. Two vent holes 343 are provided on the surface of the cartridge cover 34 for exhausting air inside the accommodating chamber when being pressed. The vent holes 343 are respectively plugged with rubber plugs 38, and the plugs 38 can be plugged by plugging the plugs 38 into the vent holes 343. When the cartridge cover 34 is dropped to abut on the filler in the containing chamber, the stopper plug 38 is inserted into the vent hole 343, and the stopper plug 38 blocks the vent hole 343, whereby the filler inside can be prevented from being discharged from the vent hole 343 in the process of repeated dropping.

Two handles 341 are fixedly connected to both sides of the outer surface of the cover 34, and the two handles 341 are arranged to face each other around the center hole 344 of the cover 34. The two handles 341 are provided to facilitate the operator pulling the cover 34 out of the receiving cavity. Four guide rails 35 vertically arranged are fixed on the inner wall of the outer sleeve 31, and the four guide rails 35 are circumferentially arrayed around the axis direction of the outer sleeve 31. The bottom end of the guide rail 35 is fixedly connected to the bottom plate 33, and the upper end surface is lower than the upper surface of the piercing hammer 3. Four notches 342 are uniformly formed in the periphery of the cylinder cover 34 along the circumferential direction, when the cylinder cover 34 is placed in the accommodating cavity, the four notches 342 are respectively opposite to the four guide rails 35, the guide rails 35 can be clamped into the four notches 342, and the cylinder cover 34 is in sliding connection with the guide rails 35.

Four supporting blocks 36 are arranged at the top of the inner wall of the outer sleeve 31, and the four supporting blocks 36 are all fixedly connected with the outer sleeve 31. Four support blocks 36 are uniformly arranged along the circumferential direction of the inner wall. The supporting block 36 and the guide rail 35 are arranged in a staggered mode, and the distance between the bottom end of the supporting block 36 and the top end of the guide rail 35 is larger than the thickness of the barrel cover 34. A vertically arranged threaded through hole is provided at a middle position of an upper surface of each support block 36, and a hold-down bolt 37 is provided in the threaded through hole. When the cartridge cover 34 is placed inside the housing chamber, the lower end of the down-pressure bolt 37 is pressed against the cartridge cover 34. The hold-down bolt 37 is screwed into the support block 36. Downward pressure is applied to the cartridge cover 34 by the press-down bolt 37, so that the cartridge cover 34 moves toward the bottom plate, thereby compacting the filling inside the receiving chamber.

The implementation principle of the embodiment is as follows:

heavy dynamic sounding appearance is in the transportation, and the inside chamber that holds of punching hammer 3 is hollow state. When the punching hammer is used, the four pressing bolts 37 are screwed out by rotating the pressing bolts 37, then the barrel cover 34 is taken down to expose the accommodating cavity, sand, waste materials and the like in a construction site are filled into the punching hammer 3 to enable the total weight of the punching hammer 3 to reach the required weight, then the barrel cover 34 is aligned with the supporting block 36 and inserted into the punching hammer 3, when the barrel cover 34 falls on the guide rail 35, the barrel cover 34 is rotated to enable the guide rail 35 to be opposite to the notch 342 on the barrel cover 34 and enable the guide rail 35 to be clamped into the corresponding notch 342, then the pressing bolts 37 are screwed down, and the pressing bolts 37 push the barrel cover 34 to move downwards to compact the sand or the waste materials in the accommodating cavity.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a heavy dynamic sounding appearance, includes feeler lever (1), is located probe (2) and the punching hammer (3) of feeler lever (1) bottom, be provided with hammer pads (11), its characterized in that on feeler lever (1): the punching hammer (3) comprises an outer sleeve (31) and an inner sleeve (32) which are coaxially arranged, the inner sleeve (32) is located inside the outer sleeve (31), the inner diameter of the outer sleeve (31) is larger than the outer diameter of the inner sleeve (32), the bottom end of a space between the inner sleeve (32) and the outer sleeve (31) is sealed through a bottom plate (33), a containing cavity with an open top end is enclosed among the inner sleeve (32), the outer sleeve (31) and the bottom plate (33), and a barrel cover (34) which is detachably connected with the top end between the inner sleeve (32) and the outer sleeve (31) is arranged.

2. A heavy duty dynamic penetrometer as claimed in claim 1, wherein: the cylinder cover (34) can move up and down in the accommodating cavity, a pressing component used for applying downward pressure to the cylinder cover (34) is arranged at the top end of the accommodating cavity, a notch (342) capable of enabling the pressing component to penetrate through is formed in the edge of the cylinder cover (34), and the cylinder cover (34) can rotate in the accommodating cavity.

3. A heavy duty dynamic penetrometer as claimed in claim 2, wherein: the downward pressing component comprises a supporting block (36) fixed at the top end of the accommodating cavity, a downward pressing bolt (37) vertically arranged is connected to the supporting block (36) in a threaded mode, and the bottom end of the downward pressing bolt (37) is abutted to the barrel cover (34).

4. A heavy duty dynamic penetrometer as claimed in claim 3, wherein: the inside of the accommodating cavity is provided with a guide rail (35) which is vertically arranged, a distance which is larger than the thickness of the barrel cover (34) is reserved between the top end of the guide rail (35) and the bottom end of the supporting block (36), and when the barrel cover (34) is positioned inside the accommodating cavity, a notch (342) in the barrel cover (34) is clamped on the guide rail (35).

5. A heavy duty dynamic penetrometer as claimed in claim 1, wherein: the outer side surface of the cylinder cover (34) is provided with a handle (341).

6. A heavy duty dynamic penetrometer as claimed in claim 1, wherein: the barrel cover (34) is provided with air holes (343).

7. The heavy duty dynamic penetrometer of claim 6, wherein: the cylinder cover (34) is provided with a sealing plug (38) which is plugged into the vent hole (343) so as to block the vent hole (343).

8. A heavy duty dynamic penetrometer as claimed in claim 1, wherein: the probe (2) is detachably connected with the feeler lever (1).