CN112095576A

CN112095576A - Soil sampling and measuring device for road and bridge engineering supervision

Info

Publication number: CN112095576A
Application number: CN202010853043.XA
Authority: CN
Inventors: 何庆
Original assignee: Anhui Tongfang Engineering Consulting Co ltd
Current assignee: Anhui Tongfang Engineering Consulting Co ltd
Priority date: 2020-08-22
Filing date: 2020-08-22
Publication date: 2020-12-18
Anticipated expiration: 2040-08-22
Also published as: CN112095576B

Abstract

The utility model relates to a soil sampling and measuring device for road and bridge engineering supervision, which comprises a sampling tube and a support frame, wherein the support frame comprises an upper support ring and a lower support ring, the outer side wall of the lower support ring is articulated with a telescopic rod, an inclined rod is articulated and connected between one end of the telescopic rod far away from the lower support ring and the upper support ring, and a universal pulley is arranged on the telescopic rod; universal pulley includes pulley yoke and movable pulley, install adjusting device on the support frame, adjusting device includes the adjustable ring, adjust cable wire and butt piece, the adjustable ring rotates and installs on last support ring, and the axis collineation of the rotation axis of adjustable ring and last support ring, butt piece fixed mounting is on universal pulley's lateral surface, the one end and the lower support ring of adjusting the cable wire are connected, the other end is connected with the butt piece, fixed mounting has the locating part on the support frame, spacing hole has been seted up on the locating part, spacing hole is worn to establish by the regulation cable wire. This application has the removal that the support frame can be free, the effect of the people's transport support frame of being convenient for.

Description

Soil sampling and measuring device for road and bridge engineering supervision

Technical Field

The application relates to the field of road and bridge construction, in particular to a soil sampling and measuring device for road and bridge engineering supervision.

Background

At present, road and bridge engineering refers to the work of investigation, design, construction, maintenance, management and the like of roads and bridges. In order to ensure the safety of the built, under-built and to-be-built construction projects, soil sampling is carried out on the foundation related to the building in the whole construction process. Soil sampling refers to a method for sampling soil samples, and comprises sampling arrangement and sampling technology. Before sampling, the section should be trimmed and cleaned, the most superficial layer of the floating soil is cut off, and then the sample is taken from the central typical part layer by layer from top to bottom according to the layers.

Chinese patent with publication number CN209429100U discloses a road and bridge construction soil sampling device, including support piece, sampling tube and drive arrangement, the sampling tube is installed to drive arrangement's lower extreme, support piece is installed to the lower part of sampling tube side, support piece includes the sleeve, the down tube, lower sleeve, first folding rod and second folding rod, the upper end of going up telescopic side and three down tube rotates from top to bottom and is connected, the lower extreme of three down tube rotates from top to bottom with the outer end of three second folding rod respectively and is connected, the inner of three second folding rod rotates from top to bottom with the outer end of three first folding rod respectively and is connected, the inner of three first folding rod all rotates from top to bottom with the lateral surface of lower sleeve and is connected, go up telescopic inner wall and the inner wall of lower sleeve all with the lateral surface sliding connection of sampling tube. When the structure is used, the storage box is small in size, easy to move and convenient to unfold, and the sampling efficiency of workers is guaranteed.

With respect to the related art in the above, the inventor believes that a plurality of times of sampling are required at the time of sampling to ensure the accuracy of the measurement result, but the support has a drawback that it is inconvenient to move because of heavy weight at the time of moving.

Disclosure of Invention

In order to be convenient for the workman to remove this soil sampling measuring device, this application provides a soil sampling measuring device that road bridge engineering supervision used.

The application provides a soil sampling measuring device of road and bridge engineering supervision usefulness adopts following technical scheme:

a soil sampling and measuring device for road and bridge engineering supervision comprises a rotatable sampling tube and a support frame, wherein the support frame comprises an upper support ring and a lower support ring which are sleeved on the sampling tube, the outer side wall of the lower support ring is hinged with a telescopic rod, an inclined rod is hinged between one end of the telescopic rod, which is far away from the lower support ring, and the upper support ring, one end of the telescopic rod, which is far away from the lower support ring, is provided with a universal pulley, and when the telescopic rod is positioned at a horizontal position, the universal pulley is arranged on the bottom surface of the; the universal pulley comprises a pulley yoke rotatably arranged on the telescopic rod and a sliding wheel arranged on the pulley yoke, and the rotating axis of the pulley yoke is vertical to the bottom surface of the telescopic rod; install adjusting device on the support frame, adjusting device includes the adjustable ring, adjust cable wire and butt piece, the adjustable ring rotates and installs on last support ring, and the axis of rotation of adjustable ring and the axis collineation of last support ring, butt piece fixed mounting is on the lateral surface of universal pulley, the one end of adjusting the cable wire is connected with the lower support ring, the other end is connected with the butt piece, fixed mounting has the locating part on the support frame, spacing hole has been seted up on the locating part, spacing hole is worn to establish by the regulation cable wire.

Through adopting above-mentioned technical scheme, adjust telescopic link and down tube, make the telescopic link keep the level, later fix the telescopic link, make the length of telescopic link can not change to accomplish the equipment of support frame. The support frame can be supported by the universal pulleys installed on the telescopic rod, so that the support frame can move freely, and people can carry the support frame conveniently. And through adjusting device, can drive universal pulley and rotate, because be provided with the locating part, adjust the cable wire and wear to establish in spacing downthehole, the position of adjusting the cable wire is restricted, is convenient for adjust. After people move the support frame to the position that needs the sample, through rotating the adjustable ring, can pull the regulation cable wire, make the one end orientation of connecting the butt joint piece in the regulation cable wire move near one side of going up the support ring. Under the traction of the adjusting steel rope, the universal pulley rotates, the abutting block on the universal pulley moves to one side close to the lower support ring, the rotating axes of the sliding wheels are not parallel to each other, and the whole support frame cannot move conveniently. And then the position of the support frame can be positioned by fixing the position of the adjusting ring, so that the soil can be conveniently sampled subsequently.

Preferably, the pulley yoke include bottom plate and curb plate, the bottom plate is parallel with the bottom surface of telescopic link and rotates and install on the telescopic link, curb plate vertical fixation is on the bottom surface of bottom plate, and two blocks of curb plates are parallel to each other, the movable pulley is installed between two blocks of curb plates, butt piece fixed mounting is on one of them curb plate, and be located the curb plate in keep away from the side of another curb plate, the side of installing the butt piece in the curb plate is the butt face, when the pulley yoke rotates to the position that makes the butt face be close to lower support ring, the butt piece on each pulley yoke all is located the left side of the telescopic link that is adjacent with this butt piece or all is located the right side of the telescopic link that is adjacent with this butt piece, the one end that is adjacent with the butt piece in the butt.

By adopting the technical scheme, the adjusting ring is rotated, and the adjusting steel cable is pulled, so that each pulley yoke is driven to rotate, and the pulley yoke is rotated to the position where the butt joint surface is close to the lower support ring. Because the adjusting steel cable is not easy to bend and is limited by the limiting part, the adjusting steel cable can push the abutting block by reversely rotating the adjusting ring. And the butt joint piece all is located the same one side with the adjacent telescopic link of this butt joint piece, consequently can promote each movable pulley and all rotate towards same one side, until make universal pulley rotate to the butt joint face and keep away from lower support ring's position department. At the moment, the position of the adjusting ring is fixed, so that the supporting frame is not easy to move. The length of the adjusting steel cable can be preset, so that after the adjusting steel cable bypasses the pulley yoke, one end of the adjusting steel cable, which is connected with the adjusting ring, is vertically connected to the side wall of the adjusting ring, and the adjusting steel cable is not wound on the outer side wall of the adjusting ring. Compare in the structure of direct wire rope winding on the adjustable ring of adjusting, when through the sampling tube sample, if universal pulley when because the vibration when the sampling tube sample has the pivoted trend, adjust the power that the wire rope transmitted to on the adjustable ring and be perpendicular to adjustable ring lateral surface, it is not easy to drive the adjustable ring and rotates, can increase the stability of adjustable ring. If the adjusting steel cable is wound on the adjusting ring, the force transmitted to the adjusting ring by the adjusting steel cable is not perpendicular to the outer side surface of the adjusting ring, so that the adjusting ring is driven to rotate easily, and the stability of the whole supporting frame is affected.

Preferably, the butt piece keep away from and set up the horizontal groove that the level set up on the side of butt face, the one end of keeping away from the butt end in horizontal groove and the butt piece is connected, the spherical groove has been seted up to the one end department that is close to the butt end in horizontal groove, serve fixedly connected with and the spherical block that the spherical groove size equals in the one end that the regulation cable wire is connected with the butt piece, the cross section of horizontal groove equals with the cross section size of adjusting the cable wire, and the diameter of spherical block is greater than the diameter of adjusting the cable wire, the spherical block ball connects in the spherical groove.

Through adopting above-mentioned technical scheme, adjust cable wire fixed connection on the butt piece, rotate when the pulley yoke, make the butt face be located the pulley yoke and keep away from the position department of lower support ring, spherical piece rotates, and make the regulation cable wire inlay establish at the horizontal slot, thereby make the regulation cable wire of being connected with the pulley yoke can be more steady with the lateral wall laminating of pulley yoke, be difficult for because the regulation cable wire range of buckling is too big, can not be fine with the laminating of pulley yoke lateral wall, lead to adjusting cable wire and peripheral soil, the stone touches, influence the phenomenon of fixed effect.

Preferably, a limiting through groove is formed in the top surface of the inner side of the horizontal groove, a limiting rod penetrates through the limiting through groove, and the length of the limiting rod is greater than that of the limiting through groove; the bottom surface of the telescopic rod is provided with a limiting blind hole, and when the pulley yoke rotates to a position where the abutting surface is far away from the lower support ring, the limiting through groove is aligned with the limiting blind hole; the supporting sliding groove is formed in the inner side wall of the limiting through groove, the central line of the supporting sliding groove is parallel to the central line of the limiting through groove, a supporting block is fixedly arranged on the side wall of the limiting rod, the supporting block can slide along the supporting sliding groove, and when the supporting block is located at the position where the supporting sliding groove is close to the horizontal groove, the upper end of the limiting rod is located in the limiting through groove, the supporting block is located at the position where the supporting sliding groove is far away from the horizontal groove, the lower end of the limiting rod is located in the limiting sliding groove, the upper end of the limiting rod penetrates through the limiting blind hole, a compression spring is fixedly arranged in the limiting blind hole, and the natural length of the compression spring is equal to.

Through adopting above-mentioned technical scheme, rotate when the pulley yoke, when making the butt face be located the position department that the support ring was kept away from down to the pulley yoke, adjust the cable wire and inlay and establish at the horizontal inslot to the gag lever post of establishing in spacing logical inslot is worn to extrude, makes the upper end of gag lever post be higher than the butt piece, extrudes compression spring and wears to establish in spacing blind hole. Thereby make the pulley yoke keep fixed for the telescopic link, further improved the stability of support frame. When the support frame needs to be moved subsequently, the adjusting ring can be rotated to pull the adjusting steel cable, so that the adjusting steel cable is rotated out from the horizontal groove, the extrusion spring pushes out the limiting rod, and the pulley frame can normally rotate.

Preferably, the adjusting ring is rotatably mounted on the bottom surface of the upper support ring, and the inner diameter of the adjusting ring is equal to the inner diameter of the upper support ring in size; the inner diameter of the lower support ring is larger than the inner diameter of the upper support ring.

Through adopting above-mentioned technical scheme, wear to establish the interior back of last support ring with the sampling tube, because the internal diameter of lower support ring is greater than the internal diameter of last support ring, consequently the sampling tube can be relaxed wear to establish lower support tube, go up the support ring can be convenient fix a position the sampling tube.

Preferably, go up support ring, in the lower support ring and the adjusting ring equal fixed mounting have the stereoplasm support ring, the internal diameter of stereoplasm support ring equals with the external diameter of sampling tube, seted up two at least support grooves on the inside wall of stereoplasm support ring, the upper end and the lower extreme in support groove are connected with the last side and the lower side of stereoplasm support ring respectively, the support groove sets up along the inside wall of stereoplasm support ring equidistant.

Through adopting above-mentioned technical scheme, the internal diameter of stereoplasm support ring equals with the external diameter of sampling tube, and the support groove has been seted up to inside. When extracting the sampling tube from ground in, soil attached to on the sampling tube lateral surface can be scraped by the stereoplasm support ring to the sample ring can be supported simultaneously to the stereoplasm support ring, and is more stable during the sample.

Preferably, the side fixed mounting that the curb plate was kept away from to the bottom plate have a pulley lever, pulley lever perpendicular to bottom plate, and the pulley lever rotates and installs on the telescopic link, the cover is equipped with the reset torsion spring on the pulley lever, and the both ends of reset torsion spring respectively with pulley lever and telescopic link fixed connection.

Through adopting above-mentioned technical scheme, install the reset torsion spring on the trolley pole, after the support frame removed the position that needs the sample, through mentioning the support frame, under the drive of reset torsion spring, the pulley yoke rotated and resumes to initial position, the follow-up angle of adjusting universal pulley of people of being convenient for.

Preferably, the locating part include stopper and guide block, the stopper sets up along the down tube, guide block fixed mounting keeps away from one side of lower support ring in the telescopic link bottom surface, all seted up spacing hole on stopper and the guide block.

Through adopting above-mentioned technical scheme, the stopper sets up along the down tube, and guide block fixed mounting keeps away from the one end department of lower support ring in the telescopic link, can make wear to establish the regulation cable wire stable in structure in spacing hole, is difficult for appearing the phenomenon of adjusting the cable wire and buckling, promotion pulley yoke that can be stable rotates.

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

1. the universal pulley arranged on the telescopic rod can support the support frame, so that the support frame can move freely, and people can carry the support frame conveniently;

2. the universal pulley is simple in structure and convenient for people to adjust the angle of the universal pulley subsequently.

Drawings

Fig. 1 is a schematic structural diagram of the present embodiment.

Fig. 2 is a schematic position diagram of the limiting member.

Fig. 3 is an enlarged view of a portion a in fig. 2.

FIG. 4 is a schematic view of the connection of the adjustment cable to the abutment block after the block has been partially concealed.

FIG. 5 is a schematic view of the structure of the universal wheel when the universal wheel is rotated to a position where the contact surface is away from the lower support ring.

Description of reference numerals: 1. a sampling tube; 2. a support frame; 21. an upper support ring; 22. a lower support ring; 23. a telescopic rod; 24. a diagonal bar; 3. a universal pulley; 31. a pulley yoke; 311. a base plate; 312. a side plate; 32. a sliding wheel; 33. a pulley lever; 34. a return torsion spring; 4. an adjusting ring; 41. adjusting the steel cable; 411. a spherical block; 42. a limiting member; 421. a limiting block; 422. a guide block; 5. a butting block; 51. a horizontal groove; 52. a spherical groove; 6. a limiting through groove; 61. a limiting rod; 62. a limiting blind hole; 63. supporting the chute; 64. supporting the block; 65. a compression spring; 7. a rigid support ring; 71. and a support groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses soil sampling and measuring device for road and bridge engineering supervision. Referring to fig. 1, the soil sampling and measuring device for road and bridge engineering supervision comprises a sampling tube 1 and a support frame 2. The support frame 2 comprises an upper support ring 21 and a lower support ring 22, and the sampling tube 1 is simultaneously arranged in the upper support ring 21 and the lower support ring 22 in a penetrating way. A telescopic rod 23 is hinged on the outer side surface of the lower support ring 22, the rotation axis of the telescopic rod 23 is perpendicular to the axis of the lower support ring 22, and when the telescopic rod 23 rotates, the central line of the telescopic rod 23 is coplanar with the axis of the lower support ring 22. The lateral surface of going up support ring 21 is gone up to articulate has down tube 24, and the one end that the support ring 21 was kept away from to down tube 24 is articulated with the one end that lower support ring 22 was kept away from to telescopic link 23, and the axis of rotation at the both ends of down tube 24 all is parallel with the axis of rotation of telescopic link 23. Four telescopic rods 23 are hinged on the outer side surface of the lower support ring 22 at equal intervals, and four diagonal rods 24 are hinged on the outer side surface of the upper support ring 21 at equal intervals.

Referring to fig. 2 and 3, a universal pulley 3 is installed on one end of the telescopic bar 23 far from the lower support ring 22, and when the telescopic bar 23 is rotated to a horizontal position, the universal pulley 3 is located on the bottom surface of the telescopic bar 23. The universal pulley 3 comprises a pulley frame 31 and a sliding wheel 32, the pulley frame 31 comprises a bottom plate 311 arranged horizontally and two side plates 312 fixedly connected to the bottom plate 311, the two side plates 312 are parallel to each other, and the sliding wheel 32 is rotatably installed between the side plates 312. The pulley bar 33 is welded on the top surface of the bottom plate 311, and the upper end of the pulley bar 33 is rotatably installed on the bottom surface of the telescopic rod 23. The pulley lever 33 is sleeved with a reset torsion spring 34, one end of the reset torsion spring 34 is connected with the pulley lever 33, and the other end of the reset torsion spring 34 is connected with the bottom surface of the telescopic rod 23. By lifting the support frame 2, the pulley frame 31 rotates and returns to the initial position under the driving of the reset torsion spring 34, so that people can conveniently adjust the angle of the universal pulley 3 subsequently.

Referring to fig. 2 and 3, an adjusting device is fixedly mounted on the supporting frame 2, and the adjusting device includes an adjusting ring 4, an adjusting cable 41, a limiting member 42, and an abutting block 5. The adjusting ring 4 is rotatably mounted on the bottom surface of the upper support ring 21, the limiting part 42 comprises a limiting block 421 and a guide block 422, and limiting holes are formed in the limiting block 421 and the guide block 422. The limiting block 421 is a long strip and is disposed along the diagonal rod 24, and the guide block 422 is fixedly mounted on one side of the bottom surface of the telescopic rod 23 far away from the lower support ring 22. When the telescopic rod 23 is horizontally disposed, the limiting block 421 is disposed along the bottom surface of the inclined rod 24, and the lower end of the limiting block 421 is located right above the guiding block 422. The abutting block 5 is fixedly connected to the pulley yoke 31, and the abutting block 5 is located on one side of one of the side plates 312 far away from the other side plate 312. One end of the adjusting steel cable 41 is connected with the adjusting ring 4, the other end of the adjusting steel cable 41 is connected with the abutting block 5, and the adjusting steel cable 41 penetrates through the limiting holes in the limiting block 421 and the guide block 422.

Referring to fig. 2 and 3, the side of the side plate 312 where the abutting block 5 is installed is an abutting surface, and when the pulley frame 31 rotates to a position where the abutting surface is close to the lower support ring 22, the abutting block 5 on each pulley frame 31 is located on the right side of the telescopic rod 23 adjacent to the abutting block 5, and one end of the abutting surface adjacent to the abutting block 5 is an abutting end.

Referring to fig. 3 and 4, a horizontal groove 51 and a spherical groove 52 are opened on the side surface of the abutment block 5 away from the abutment surface, the horizontal groove 51 is horizontally disposed, one end of the horizontal groove 51 is connected to the end of the abutment surface away from the abutment end, and the spherical groove 52 is opened at the end of the horizontal groove 51 close to the abutment end. A spherical block 411 is fixedly connected to one end of the adjusting cable 41 close to the abutting block 5, and the diameter of the spherical block 411 is larger than that of the adjusting cable 41. The diameter of the spherical block 411 is equal to that of the spherical groove 52, the diameter of the adjusting cable 41 is equal to that of the horizontal groove 51, the spherical block 411 is in ball joint with the spherical groove 52, and the adjusting cable 41 can be embedded in the horizontal groove 51.

Referring to fig. 4 and 5, a limiting through groove 6 is formed in the top surface of the inner side of the horizontal groove 51, the axis of the limiting through groove 6 is vertically arranged, a limiting rod 61 penetrates through the limiting through groove 6, and the length of the limiting rod 61 is greater than that of the limiting through groove 6. The bottom surface of the telescopic rod 23 is provided with a limiting blind hole 62, and when the pulley frame 31 rotates to a position where the abutting surface is far away from the lower support ring 22, the axes of the limiting through groove 6 and the limiting blind hole 62 are collinear. The supporting sliding groove 63 is formed in the inner side wall of the limiting through groove 6, the supporting block 64 is integrally formed on the outer side wall of the limiting rod 61, the supporting sliding groove 63 is vertically arranged, and the supporting block 64 slides up and down along the supporting sliding groove 63. When the supporting block 64 slides to the lower end of the supporting chute 63, the upper end of the limiting rod 61 is positioned in the limiting through groove 6; when the supporting block 64 slides to the upper end of the supporting chute 63, the lower end of the limiting rod 61 is located in the limiting chute, and the upper end of the limiting rod 61 penetrates through the limiting blind hole 62. A compression spring 65 with a natural length equal to the depth of the limit blind hole 62 is embedded in the limit blind hole 62.

Referring to fig. 1, the inner diameter of the upper support ring 21 is equal to the inner diameter of the adjusting ring 4, the inner diameter of the lower support ring 22 is greater than the inner diameter of the upper support ring 21, and the inner diameter of the upper support ring 21 is greater than the diameter of the sampling tube 1. The inner side walls of the upper support ring 21, the lower support ring 22 and the adjusting ring 4 are fixedly provided with hard support rings 7. The inner diameter of the hard support ring 7 is equal to the diameter of the sampling tube 1. The inner side wall of the hard support ring 7 is provided with at least three vertically arranged support grooves 71, and the distance between two adjacent support grooves 71 is equal.

The implementation principle of the soil sampling and measuring device for road and bridge engineering supervision is as follows: by adjusting the telescopic rod 23 and the diagonal rod 24, the telescopic rod 23 is kept horizontal, and then the telescopic rod 23 is fixed, so that the length of the telescopic rod 23 cannot be changed, and the assembly of the support frame 2 is completed. Install universal pulley 3 on telescopic link 23 and can prop up support frame 2, make the removal that support frame 2 can be free, the people of being convenient for carry support frame 2. After people move the support frame 2 to the position needing sampling, the adjusting steel cable 41 is pulled through rotating the adjusting ring 4, so that the universal pulley 3 is driven to rotate. The universal pulley 3 is first restored to a position where the abutment block 5 is close to the side of the lower support ring 22, and there is a portion of the adjusting wire 41 wound around the adjusting ring 4. Then, the adjusting ring 4 is rotated reversely, because the adjusting cable 41 itself is not easily bent and has the limit of the limiting member 42, by rotating the adjusting ring 4 reversely, the adjusting cable 41 can push the abutting block 5. The abutting blocks 5 are all located on the same side of the telescopic rod 23 adjacent to the abutting blocks 5, so that the sliding wheels 32 can be pushed to rotate towards the same side until the universal pulley 3 rotates to a position where the abutting surface is far away from the lower support ring 22. The rotation axes of the sliding wheels 32 are not parallel to each other, and the whole support frame 2 cannot be moved conveniently. Fix through the position with adjustable ring 4 to make support frame 2 be difficult for removing, be convenient for follow-up sample soil.

When the pulley yoke 31 rotates to make the abutting surface located at the position where the pulley yoke 31 is far away from the lower support ring 22, the adjusting steel cable 41 is embedded in the horizontal groove 51, so as to extrude the limiting rod 61 penetrating through the limiting through groove 6, make the upper end of the limiting rod 61 higher than the abutting block 5, extrude the compression spring 65 and penetrate through the limiting blind hole 62. Therefore, the pulley yoke 31 is kept fixed relative to the telescopic rod 23, and the stability of the support frame 2 is further improved. When the support frame 2 needs to be moved subsequently, the adjusting ring 4 can be rotated to pull the adjusting steel cable 41, so that the adjusting steel cable 41 is rotated out of the horizontal groove 51, the extrusion spring pushes out the limiting rod 61, and the pulley frame 31 can normally rotate.

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

Claims

1. The utility model provides a soil sample measuring device of usefulness is managed in road and bridge engineering, includes rotatable sampling tube (1) and support frame (2), support frame (2) establish last supporting ring (21) and lower supporting ring (22) on sampling tube (1) including the cover, it has telescopic link (23) to articulate on the lateral wall of lower supporting ring (22), articulated down tube (24) that are connected with between one end of lower supporting ring (22) and last supporting ring (21) are kept away from in telescopic link (23), its characterized in that: one end of the telescopic rod (23) far away from the lower supporting ring (22) is provided with a universal pulley (3), and when the telescopic rod (23) is positioned at a horizontal position, the universal pulley (3) is arranged on the bottom surface of the telescopic rod (23); the universal pulley (3) comprises a pulley yoke (31) rotatably arranged on the telescopic rod (23) and a sliding wheel (32) arranged on the pulley yoke (31), and the rotating axis of the pulley yoke (31) is vertical to the bottom surface of the telescopic rod (23); install adjusting device on support frame (2), adjusting device includes adjustable ring (4), adjust cable wire (41) and butt piece (5), adjustable ring (4) rotate and install on last support ring (21), and the axis collineation of the axis of rotation of adjustable ring (4) and last support ring (21), butt piece (5) fixed mounting is on the lateral surface of universal pulley (3), the one end and the lower support ring (22) of adjusting cable wire (41) are connected, the other end is connected with butt piece (5), fixed mounting has locating part (42) on support frame (2), spacing hole has been seted up on locating part (42), spacing hole is worn to establish by adjusting cable wire (41).

2. The soil sampling and measuring device for road and bridge engineering supervision according to claim 1, characterized in that: the pulley frame (31) comprises a bottom plate (311) and side plates (312), the bottom plate (311) is parallel to the bottom surface of the telescopic rod (23) and is rotatably installed on the telescopic rod (23), the side plates (312) are vertically fixed on the bottom surface of the bottom plate (311), the two side plates (312) are parallel to each other, a sliding wheel (32) is installed between the two side plates (312), a butting block (5) is fixedly installed on one side plate (312) and is positioned on the side surface, far away from the other side plate (312), of the side plate (312), provided with the butting block (5), and is a butting surface, when the pulley frame (31) rotates to a position where the butting surface is close to the lower support ring (22), the butting blocks (5) on each pulley frame (31) are positioned on the left side of the telescopic rod (23) adjacent to the butting block (5) or positioned on the right side of the telescopic rod (23) adjacent to the butting block (5), one end of the abutting surface adjacent to the abutting block (5) is an abutting end.

3. The soil sampling and measuring device for road and bridge engineering supervision according to claim 2, characterized in that: the butt joint piece (5) keep away from and set up horizontal groove (51) that have the level to set up on the side of butt joint face, keep away from the one end of butt joint end in horizontal groove (51) and butt joint piece (5) and be connected, spherical groove (52) have been seted up to one end department that horizontal groove (51) are close to the butt joint end, serve fixedly connected with and spherical groove (52) the same spherical piece (411) of size in the one end that regulation cable wire (41) and butt joint piece (5) are connected, the cross section of horizontal groove (51) equals with the cross section size of adjusting cable wire (41), and the diameter of spherical piece (411) is greater than the diameter of adjusting cable wire (41), spherical piece (411) ball joint is in spherical groove (52).

4. A soil sampling and measuring device for road and bridge engineering supervision according to claim 3, characterized in that: a limiting through groove (6) is formed in the top surface of the inner side of the horizontal groove (51), a limiting rod (61) penetrates through the limiting through groove (6), and the length of the limiting rod (61) is greater than that of the limiting through groove (6); a limiting blind hole (62) is formed in the bottom surface of the telescopic rod (23), and when the pulley frame (31) rotates to a position where the abutting surface is far away from the lower support ring (22), the limiting through groove (6) is aligned with the limiting blind hole (62); a supporting sliding groove (63) is arranged on the inner side wall of the limiting through groove (6), the central line of the supporting sliding groove (63) is parallel to the central line of the limiting through groove (6), a supporting block (64) is fixedly arranged on the side wall of the limiting rod (61), the supporting block (64) can slide along the supporting chute (63), and when the supporting block (64) is positioned at the position of the supporting sliding groove (63) close to the horizontal groove (51), when the upper end of the limiting rod (61) is positioned in the limiting through groove (6), the supporting block (64) is positioned at the position of the supporting sliding groove (63) far away from the horizontal groove (51), the lower end of the limiting rod (61) is positioned in the limiting sliding chute, the upper end of the limiting rod (61) is arranged in the limiting blind hole (62) in a penetrating way, a compression spring (65) is fixedly arranged in the limiting blind hole (62), and the natural length of the compression spring (65) is equal to that of the limiting blind hole (62).

5. The soil sampling and measuring device for road and bridge engineering supervision according to claim 4, characterized in that: the adjusting ring (4) is rotatably arranged on the bottom surface of the upper supporting ring (21), and the inner diameter of the adjusting ring (4) is equal to that of the upper supporting ring (21); the inner diameter of the lower support ring (22) is larger than the inner diameter of the upper support ring (21).

6. The soil sampling and measuring device for road and bridge engineering supervision according to claim 5, characterized in that: go up support ring (21), in lower support ring (22) and adjusting ring (4) equal fixed mounting have stereoplasm support ring (7), the internal diameter of stereoplasm support ring (7) equals with the external diameter of sampling tube (1), at least two support grooves (71) have been seted up on the inside wall of stereoplasm support ring (7), the upper end and the lower extreme of support groove (71) are connected with the last side and the lower side of stereoplasm support ring (7) respectively, support groove (71) are along the equidistant setting of the inside wall of stereoplasm support ring (7).

7. The soil sampling and measuring device for road and bridge engineering supervision according to claim 2, characterized in that: bottom plate (311) keep away from the side fixed mounting of curb plate (312) have pulley lever (33), pulley lever (33) perpendicular to bottom plate (311), and pulley lever (33) rotate and install on telescopic link (23), the cover is equipped with reset torsion spring (34) on pulley lever (33), and the both ends of reset torsion spring (34) respectively with pulley lever (33) and telescopic link (23) fixed connection.

8. The soil sampling and measuring device for road and bridge engineering supervision according to claim 1, characterized in that: the limiting part (42) comprises a limiting block (421) and a guide block (422), the limiting block (421) is arranged along the inclined rod (24), the guide block (422) is fixedly arranged on one side, far away from the lower supporting ring (22), of the bottom surface of the telescopic rod (23), and limiting holes (423) are formed in the limiting block (421) and the guide block (422).