CN210221544U - Bridge pile foundation rock stratum sampling detection device - Google Patents
Bridge pile foundation rock stratum sampling detection device Download PDFInfo
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- CN210221544U CN210221544U CN201920763059.4U CN201920763059U CN210221544U CN 210221544 U CN210221544 U CN 210221544U CN 201920763059 U CN201920763059 U CN 201920763059U CN 210221544 U CN210221544 U CN 210221544U
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Abstract
The utility model relates to a bridge construction technical field specifically is a bridge pile foundation rock stratum sampling test device, including the sampler barrel, the left side of sampler barrel, the right side wall all is equipped with the sample cover, sampler barrel inner wall fixed connection baffle, the baffle is equipped with step motor, step motor output shaft and first lead screw one end fixed connection, the first lead screw other end and second lead screw fixed connection, the screw opposite direction of first lead screw and second lead screw, lead screw nut of clearance fit respectively for first lead screw and second lead screw, lead screw nut top fixed connection push rod, push rod fixed connection apron, the apron runs through behind the sampler barrel lateral wall lid and closes the sample cover, beneficial effect is: the utility model discloses a screw-nut on first lead screw and the second lead screw carries out sharp relative motion, and the push rod stimulates the apron simultaneously about realizing, and the rock stratum sample of being convenient for falls into the sampler barrel, simple structure, and the assembly is easy, maintains simply, can accomplish the multilayer sample in proper order.
Description
Technical Field
The utility model relates to a bridge construction technical field specifically is a bridge stake foundation rock stratum sampling test device.
Background
When the bridge pile foundation is constructed, the basement rock stratum is required to be accurately, timely and directly collected, the lithology of the bridge pile foundation is judged by geotechnical engineers, and after the requirement of designing the pile bottom bearing rock stratum is met, the work of clearing holes, placing a steel reinforcement cage and pouring concrete can be carried out.
The rock stratum sampling and detecting device in the prior art mainly has the problems of complex structure, large volume, high production cost, high subsequent maintenance cost, incapability of completing multi-layer sampling at one time and the like in the using process.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a bridge stake foundation rock stratum sample detection device to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a bridge pile foundation rock stratum sampling detection device comprises a drill rod, a drill bit and a plurality of sampling cylinders, wherein the drill rod, the drill bit and the sampling cylinders are driven by a drilling machine to rotate, the sampling cylinders are vertically arranged at equal intervals, the centers of the top and the bottom of each sampling cylinder are fixedly connected with sleeves, the sleeves are fixedly connected with sleeve rods, the sleeve rod positioned at the top is fixedly connected with the bottom end of the drill rod, the sleeve rod positioned at the bottom is fixedly connected with the top end of the drill bit, the left side wall and the right side wall of each sampling cylinder are respectively provided with a through hole, the peripheries of the through holes are respectively covered with a sampling cover, the inner wall of each sampling cylinder is fixedly connected with a partition plate, the partition plate is provided with a stepping motor, an output shaft of the stepping motor is fixedly connected with one end of a first screw rod through a coupler, the other end of the first screw rod is fixedly connected with a second screw rod, the screw threads of the, the top of the screw rod nut is fixedly connected with a push rod, the push rod is fixedly connected with a cover plate, and the cover plate penetrates through the side wall of the sampling cylinder and then is covered with the sampling cover.
Preferably, the sampling section of thick bamboo inner wall fixed connection backup pad, backup pad bottom fixed connection uide bushing, the uide bushing cup joints and sliding fit apron.
Preferably, the sleeve is sleeved on the sleeve rod, and a bolt connecting pair is horizontally arranged in the sleeve and the sleeve rod in a penetrating mode.
Preferably, the sampling cover is an inverted semi-cone, and the maximum distance from the sampling cover to the central shaft of the sampling cylinder is smaller than the maximum diameter of the drill bit.
Preferably, the side wall of the sampling cover is provided with liquid leakage holes, and the liquid leakage holes are linearly arranged at equal intervals along a bus of the sampling cover.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model realizes that the left and right push rods pull the cover plate simultaneously by the linear opposite movement of the screw rod nuts on the first screw rod and the second screw rod, so that rock stratum samples can fall into the sampling cylinder conveniently, the structure is simple, the assembly is easy, the maintenance is simple, and multilayer sampling can be completed in sequence;
2. the utility model discloses a uide bushing cup joints and sliding fit apron, and the uide bushing is used for bearing the weight of the apron, reduces the effort of apron to screw-nut to reduce the wearing and tearing between screw-nut and first lead screw and the second lead screw, prolong the life of first lead screw and second lead screw.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is the schematic structural diagram of the sampling cylinder and the sampling cover of the present invention.
In the figure: 1 drill rod, 2 drill bits, 3 sampling cylinders, 4 sleeves, 5 loop bars, 6 sampling covers, 7 partition plates, 8 stepping motors, 9 first lead screws, 10 second lead screws, 11 lead screw nuts, 12 push rods, 13 cover plates, 14 supporting plates, 15 guide sleeves, 16 liquid leakage holes and 17 bolt connecting pairs.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 2, the present invention provides a technical solution: the utility model provides a bridge stake foundation rock stratum sample detection device, includes by rotatory drilling rod 1 of rig drive, drill bit 2 and three sampler barrel 3, three sampler barrel 3 is vertical equidistant range, the equal fixed connection sleeve 4 in top and the bottom center of every sampler barrel 3, sleeve 4 cup joints loop bar 5, and the level runs through in sleeve 4 and the loop bar 5 and is equipped with bolted connection pair 17, and bolted connection pair 17 fixes sleeve 4 and loop bar 5 into a whole. Wherein, the loop bar 5 positioned at the top is fixedly connected with the bottom end of the drill rod 1, and the loop bar 5 positioned at the bottom is fixedly connected with the top end of the drill bit 2.
The through-hole has all been seted up to the left and right lateral wall of sampling tube 3, and the through-hole periphery all covers and is equipped with sample cover 6, and sample cover 6 is the half cone of inversion, and the maximum distance of sample cover 6 to 3 center pins of sampling tube is less than the maximum diameter of drill bit 2. The inner wall of the sampling tube 3 is fixedly connected with a partition plate 7, the partition plate 7 is provided with a stepping motor 8, an output shaft of the stepping motor 8 is fixedly connected with one end of a first screw rod 9 through a coupler, the other end of the first screw rod 9 is fixedly connected with a second screw rod 10, the first screw rod 9 and the second screw rod 10 are respectively in clearance fit with a screw nut 11, the top of the screw nut 11 is fixedly connected with a push rod 12, the push rod 12 is fixedly connected with a cover plate 13, and the cover plate 13 penetrates through the side wall of the sampling tube 3 and then is covered.
The stepping motor 8 adopts a waterproof stepping motor, a storage battery is arranged on the partition plate 7, the storage battery outputs an electric pulse signal to the stepping motor 8 through the PLC, and the forward and reverse rotation of the stepping motor 8 is realized by changing the frequency of the electric pulse signal. Because the thread directions of the first screw rod 9 and the second screw rod 10 are opposite and the thread pitches are the same, the screw rod nuts 11 on the first screw rod 9 and the second screw rod 10 move in a linear opposite direction, so that the left and right push rods 12 can pull the cover plate 13 at the same time.
The drill rod 1 is driven by the drilling machine to rotate, a square drill rod in a rotating system in the drilling machine is fixedly connected with the drill rod 1, and the square drill rod transmits the torque of the ground turntable to the drill rod 1 so as to drive the drill bit 2 to rotate and push the drill bit 2 to extend into a rock stratum. When the drill bit 2 drives the sampling cylinder 3 to reach a proper rock stratum depth, the rock soil in the rock stratum is extruded and collided to the sampling cover 6 under the action of the internal pressure of the rock stratum. The drill rod 1 is pulled upwards, so that the sampling cover 6 scrapes nearby rock stratums, the cover plate 13 is pulled through the push rod 12, the sampling cover 6 is opened, rock stratum samples fall into the sampling cover 6, and the rock stratum samples finally enter the sampling cylinder 3 through the through hole in the side wall of the sampling cylinder 3. The weeping hole 16 has been seted up to the sample cover 6 lateral wall, and weeping hole 16 is equidistant linear array along the generating line of sample cover 6, and fluid such as moisture can flow from weeping hole 16 after getting into sample cover 6 in the rock stratum, avoids introducing fluid in sampler barrel 3.
As shown in fig. 2, the inner wall of the sampling tube 3 is fixedly connected with a support plate 14, the bottom end of the support plate 14 is fixedly connected with a guide sleeve 15, the guide sleeve 15 is sleeved and slidably matched with a cover plate 13, the guide sleeve 15 is used for bearing the cover plate 13, and the acting force of the cover plate 13 on the screw nut 11 is reduced, so that the abrasion between the screw nut 11 and the first screw 9 and the second screw 10 is reduced, and the service lives of the first screw 9 and the second screw 10 are prolonged.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a bridge stake foundation rock stratum sample detection device, includes by rotatory drilling rod (1) of rig drive, drill bit (2) and a plurality of sampler barrel (3), its characterized in that: a plurality of the sampling barrels (3) are arranged at vertical equal intervals, the top and the bottom center of each sampling barrel (3) are fixedly connected with a sleeve (4), the sleeve (4) is fixedly connected with a sleeve rod (5), the sleeve rod (5) positioned at the top is fixedly connected with the bottom end of a drill rod (1), the sleeve rod (5) positioned at the bottom is fixedly connected with the top end of a drill bit (2), the left side wall and the right side wall of each sampling barrel (3) are provided with through holes, the peripheries of the through holes are respectively covered with a sampling cover (6), a partition board (7) fixedly connected with the inner wall of each sampling barrel (3) is provided with a stepping motor (8), the output shaft of each stepping motor (8) is fixedly connected with one end of a first screw rod (9) through a coupler, the other end of the first screw rod (9) is fixedly connected with a second screw rod (10), the thread directions of the first screw rod (9) and the second screw rod (10) are opposite, and the thread, screw-nut (11) of clearance fit respectively for first lead screw (9) and second lead screw (10), screw-nut (11) top fixed connection push rod (12), push rod (12) fixed connection apron (13), apron (13) run through behind sampler barrel (3) lateral wall lid and close sample hood (6).
2. The bridge pile foundation rock stratum sampling and detecting device of claim 1, wherein: sampling tube (3) inner wall fixed connection backup pad (14), backup pad (14) bottom fixed connection uide bushing (15), uide bushing (15) cup joint and sliding fit apron (13).
3. The bridge pile foundation rock stratum sampling and detecting device of claim 1, wherein: the sleeve (4) is sleeved with the loop bar (5), and a bolt connecting pair (17) penetrates through the sleeve (4) and the loop bar (5) horizontally.
4. The bridge pile foundation rock stratum sampling and detecting device of claim 1, wherein: the sampling cover (6) is an inverted semi-cone, and the maximum distance from the sampling cover (6) to the central shaft of the sampling cylinder (3) is smaller than the maximum diameter of the drill bit (2).
5. The bridge pile foundation rock stratum sampling and detecting device of claim 1, wherein: and liquid leakage holes (16) are formed in the side wall of the sampling cover (6), and the liquid leakage holes (16) are linearly arranged at equal intervals along a bus of the sampling cover (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920763059.4U CN210221544U (en) | 2019-05-25 | 2019-05-25 | Bridge pile foundation rock stratum sampling detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920763059.4U CN210221544U (en) | 2019-05-25 | 2019-05-25 | Bridge pile foundation rock stratum sampling detection device |
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| Publication Number | Publication Date |
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| CN210221544U true CN210221544U (en) | 2020-03-31 |
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| CN201920763059.4U Active CN210221544U (en) | 2019-05-25 | 2019-05-25 | Bridge pile foundation rock stratum sampling detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418737A (en) * | 2021-06-18 | 2021-09-21 | 王殿波 | Convenient sampling device for hydrogeological exploration and sampling method thereof |
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2019
- 2019-05-25 CN CN201920763059.4U patent/CN210221544U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418737A (en) * | 2021-06-18 | 2021-09-21 | 王殿波 | Convenient sampling device for hydrogeological exploration and sampling method thereof |
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