CN113551947A - On-site sampling tool and sampling method for engineering cost budget - Google Patents
On-site sampling tool and sampling method for engineering cost budget Download PDFInfo
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- CN113551947A CN113551947A CN202110722384.8A CN202110722384A CN113551947A CN 113551947 A CN113551947 A CN 113551947A CN 202110722384 A CN202110722384 A CN 202110722384A CN 113551947 A CN113551947 A CN 113551947A
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- 238000005070 sampling Methods 0.000 title claims abstract description 166
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- 230000008093 supporting effect Effects 0.000 claims abstract description 75
- 239000000463 material Substances 0.000 claims abstract description 45
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 230000000903 blocking effect Effects 0.000 claims abstract description 20
- 238000010276 construction Methods 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 8
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1006—Dispersed solids
- G01N2001/1012—Suspensions
- G01N2001/1025—Liquid suspensions; Slurries; Mud; Sludge
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1031—Sampling from special places
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Abstract
The invention discloses a field sampling tool and a sampling method for engineering cost budget, wherein the sampling tool comprises a sampling cylinder, the sampling cylinder is provided with a height adjusting mechanism for adjusting the height of the sampling cylinder, the outer wall of the sampling cylinder is provided with a supporting lug seat, a sealed lifting piston is arranged in the sampling cylinder, and the bottom end of the sampling cylinder is provided with a material taking port; a top plate is arranged above the sampling cylinder, the top plate is connected with a piston rod, and the bottom end of the piston rod extends into the sampling cylinder and is connected with the piston; the bottom of the top plate is provided with a lifting rod which vertically slides to penetrate through the supporting lug seat, and a positioning support piece is arranged between the lifting rod and the supporting lug seat; a material blocking mechanism is arranged in the sampling tube and is linked with the lifting rod. The height adjusting mechanism can adjust the height of the sampling cylinder, so that the material taking port 205 of the sampling cylinder can sample concrete on different horizontal line heights, the sampling workload of workers can be reduced, and the smooth operation of concrete sampling is facilitated.
Description
Technical Field
The invention belongs to the technical field of construction cost, and particularly relates to a field sampling tool and a sampling method for construction cost budget.
Background
The project cost is the total cost spent on a certain project construction, the core content of the project cost is investment estimation, design estimation, correction estimation, construction drawing estimation, project settlement, completion settlement and the like, and the project cost has the main tasks: according to the drawing, the quota and the list specification, direct cost, material and equipment, construction machine use, enterprise management cost, measure cost, planning cost, profit, tax and the like contained in the project are calculated.
Different building engineering materials are different in sampling quantity and method when entering the field, concrete is one of important building engineering materials, different building engineering materials are different in sampling quantity and method when entering the field, the engineering cost budget of the building engineering is calculated, the concrete of the engineering is required to be sampled and analyzed, and the analysis result is used as a guide to serve as an influence factor of the engineering cost budget of the building engineering.
The common concrete is artificial stone which is prepared by taking cement as a main cementing material, mixing water, sand, stones, chemical additives and mineral admixtures if necessary, mixing the materials according to a proper proportion, uniformly stirring, densely molding, curing and hardening. Concrete is mainly divided into two stages and states: plastic state before setting and hardening, namely fresh concrete or concrete mixture; hardened, i.e. hardened concrete or concrete.
With the rapid development of the construction industry, the construction amount of infrastructure is increased or decreased, wherein concrete is sampled, and the quality of the material is determined according to the detection of the sample and is used as a reference factor of project cost budget; concrete need confirm the quality of concrete through the sample in process of production, at present, because concrete sampling device's structure sets up unreasonablely, and its high unable regulation, when using, can not take a sample to the concrete on the different water flat line height, has increased staff's work load, is unfavorable for the sampling work of concrete.
Disclosure of Invention
The embodiment of the invention aims to provide a field sampling tool for engineering cost budget and a sampling method, and aims to solve the problems that the height of the existing concrete sampling device cannot be adjusted, and concrete on different horizontal line heights cannot be sampled.
The embodiment of the invention is realized as follows:
a field sampling tool for engineering cost budget comprises a sampling cylinder, wherein the sampling cylinder is provided with a height adjusting mechanism for adjusting the height of the sampling cylinder, the outer wall of the sampling cylinder is provided with a supporting lug seat, a sealed lifting piston is arranged in the sampling cylinder, and the bottom end of the sampling cylinder is provided with a material taking port; a top plate is arranged above the sampling cylinder, the top plate is connected with a piston rod, and the bottom end of the piston rod extends into the sampling cylinder and is connected with the piston; the bottom of the top plate is provided with a lifting rod which penetrates through the supporting lug seat in a vertically sliding manner, and a positioning support piece is arranged between the lifting rod and the supporting lug seat; the sampling tube is internally provided with a blocking mechanism, the blocking mechanism is linked with the lifting rod, and when the height of the lifting rod in the vertical direction is adjusted, the blocking mechanism intermittently blocks the material taking port. The height adjusting mechanism can adjust the height of the sampling cylinder, so that a material taking port of the sampling cylinder can sample concrete on different horizontal line heights, the sampling workload of workers can be reduced, and the smooth operation of concrete sampling is facilitated.
As a further limitation of the technical solution of the preferred embodiment of the present invention, the height adjusting mechanism includes a lifting screw rod, the lifting screw rod is coaxially disposed in the piston rod in a penetrating manner, a bottom end of the lifting screw rod penetrates through a bottom plate of the sampling cylinder and extends to an outside of the sampling cylinder, a supporting threaded sleeve is disposed in an inner cavity of a bottom of the sampling cylinder, and the lifting screw rod is disposed in a penetrating manner through the supporting threaded sleeve in a threaded connection manner.
As a further limitation of the technical scheme of the preferred embodiment of the present invention, at least two sets of material taking ports are arranged at the bottom end of the sampling cylinder, at least two sets of arc-shaped grooves are arranged at the bottom of the inner cavity of the sampling cylinder, and each set of arc-shaped grooves is communicated with each set of material taking ports.
As a further limitation of the technical scheme of the preferred embodiment of the present invention, a sealing sleeve is disposed on the bottom surface of the sampling tube, and the lifting screw rod is disposed to penetrate through the sealing sleeve in a sealing manner.
As a further limitation of the technical solution of the preferred embodiment of the present invention, the blocking mechanism includes a rotating shaft rotatably disposed on the sampling tube and a blocking block adapted to the arc-shaped groove, the blocking block is eccentrically and fixedly mounted on the rotating shaft, and a linkage mechanism is connected between the lifting rod and the rotating shaft.
As a further limitation of the technical solution of the preferred embodiment of the present invention, the linkage mechanism includes a toothed plate, a support shaft, a driven gear, a driving sprocket, a driven sprocket and a transmission chain, the toothed plate is fixedly disposed at one side of the lifting rod, the support shaft is rotatably disposed on the outer wall of the sampling cylinder, the driven gear engaged with the toothed plate is fixedly mounted on the support shaft, the driven sprocket is fixedly mounted at one end of the rotation shaft, the driving sprocket is fixedly disposed on the support shaft, and the driving sprocket and the driven sprocket are connected by the transmission chain.
As a further limitation of the technical solution of the preferred embodiment of the present invention, one end of the rotating shaft is rotatably connected to the supporting threaded sleeve.
As a further limitation of the technical solution of the preferred embodiment of the present invention, the positioning support member includes a rotary cylinder, a lifting channel is disposed on the support ear seat, an accommodating cavity communicated with the lifting channel is disposed in the support ear seat, the rotary cylinder is rotatably disposed in the accommodating cavity, and a first rectangular cavity and a second rectangular cavity are respectively disposed on two sides of the rotary cylinder; the lifting device is characterized in that a first rectangular block is arranged in the second rectangular cavity in a sliding mode, a first supporting spring is arranged between the inner wall of the second rectangular cavity and the first rectangular block, a supporting rod is fixedly mounted on the first rectangular block, a supporting block is fixedly mounted at the other end of the supporting rod, an inclined plane is arranged on one side of the supporting block, and a supporting groove matched with the supporting block is formed in one side of the lifting rod.
As a further limitation of the technical scheme of the preferred embodiment of the present invention, a second rectangular block is slidably disposed in the first rectangular cavity, a second supporting spring is disposed between the inner wall of the first rectangular cavity and the second rectangular block, an adjusting shaft is fixedly mounted on the second rectangular block, and an operating handle is fixedly disposed at the outer end of the adjusting shaft; orientation the handle surface of supporting the ear seat is provided with the locking post, the tip of supporting the ear seat seted up with the locking groove of locking post looks adaptation, under the elastic support effect of second supporting spring, can make the locking post embedding correspond locking inslot.
In a further preferred embodiment of the present invention, there is provided a site sampling method for project cost budgeting, the site sampling method comprising:
adjusting the extending length of the bottom end of the lifting screw rod relative to the sampling cylinder according to the sampling depth of the target concrete sample, and then placing the sampling cylinder in the concrete mixing cavity;
the bottom end of the lifting screw rod is abutted against the bottom of the stirring cavity;
the top plate is lifted upwards to drive the piston to move upwards in the sampling cylinder, and based on the pressure change in the inner cavity at the bottom of the sampling cylinder, the concrete sample at the target depth in the stirring cavity is pumped into the sampling cylinder through the material taking port;
after the top plate is lifted upwards to the designated position, the lifting rod is supported and fixed through the positioning support piece, so that the piston lifted to the designated position is kept fixed, and the sampling work is completed.
In summary, in the on-site sampling tool and the sampling method for engineering cost budget provided by the embodiment of the invention, the lifting screw rod is arranged, so that the sampling tool can take concrete at a specified depth in the concrete mixing cavity, in the sampling process, the top plate is lifted upwards to drive the piston to move upwards in the sampling cylinder, and based on the pressure change in the inner cavity at the bottom of the sampling cylinder, a concrete sample at a target depth in the mixing cavity is pumped into the sampling cylinder through the material taking opening; after the top plate is lifted upwards to the designated position, the lifting rod is supported and fixed through the positioning support piece, so that the piston lifted to the designated position is kept fixed, and the sampling work is completed; effectively solved concrete sampling device and can not take a sample the concrete on the different level line height, be unfavorable for the go on problem of sample.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the embodiments or drawings used in the prior art description will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
FIG. 1 is a block diagram of a field sampling tool for engineering cost budgeting according to an embodiment of the present invention;
FIG. 2 is a block diagram of a positioning support in a field sampling tool for cost budgeting according to an embodiment of the present invention;
FIG. 3 is a perspective view of a material plugging mechanism in a field sampling tool for engineering cost budgeting according to an embodiment of the present invention;
FIG. 4 is a perspective view of a lifter of the construction cost budgeting field sampling tool according to an embodiment of the present invention;
FIG. 5 is a partial perspective view of a support portion of a positioning support according to an embodiment of the present invention;
in FIGS. 1-5: 100. a top plate; 101. a piston rod; 102. a piston; 103. a lifting rod; 104. a support groove; 105. a toothed plate; 106. a locking groove; 107. an accommodating chamber; 108. a rotary drum; 109. a first rectangular cavity; 110. a second rectangular cavity; 111. a strut; 112. a support block; 113. a first rectangular block; 114. a first support spring; 115. a second rectangular block; 116. a second support spring; 117. an adjustment shaft; 118. an operating handle; 119. a locking post; 200. a sampling tube; 201. a support ear mount; 202. a lifting channel; 203. a support shaft; 204. a driven gear; 205. a material taking port; 206. an arc-shaped slot; 207. a drive sprocket; 208. a drive chain; 209. supporting the threaded sleeve; 210. sealing sleeves; 300. a material blocking block; 301. a rotating shaft; 302. a driven sprocket; 400. a lifting screw rod; 401. the anticreep piece.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
With the rapid development of the construction industry, the construction amount of infrastructure is increased or decreased, wherein concrete is sampled, and the quality of the material is determined according to the detection of the sample and is used as a reference factor of project cost budget; concrete need confirm the quality of concrete through the sample in process of production, at present, because concrete sampling device's structure sets up unreasonablely, and its high unable regulation, when using, can not take a sample to the concrete on the different water flat line height, has increased staff's work load, is unfavorable for the sampling work of concrete.
In order to solve the above problems, embodiments of the present invention provide a field sampling tool for engineering cost budget. Specific implementations of the field sampling tool of the present invention are described in detail below with reference to specific embodiments.
Referring to fig. 1 to 5, a block diagram of an on-site sampling tool for engineering cost budgeting according to an embodiment of the present invention is provided, the on-site sampling tool includes:
the sampling tube 200 is provided with a height adjusting mechanism for adjusting the height of the sampling tube 200, and a supporting lug seat 201 is fixedly arranged on the outer ring of the top of the sampling tube 200; a piston 102 is arranged in the sampling cylinder 200 in a sealing and lifting manner; the bottom end of the sampling cylinder 200 is provided with at least two groups of material taking ports 205, the bottom of the inner cavity of the sampling cylinder 200 is provided with at least two groups of arc-shaped grooves 206, and each group of arc-shaped grooves 206 is communicated with the corresponding material taking ports 205. The height of the sampling cylinder 200 can be adjusted by the height adjusting mechanism, so that the concrete on different horizontal line heights can be sampled by the material taking port 205 of the sampling cylinder 200, the sampling workload of workers can be reduced, and the smooth operation of concrete sampling is facilitated.
A top plate 100 fixedly mounted on the top end of the piston rod 101; the bottom end of the piston rod 101 extends into the sampling tube 200 and is fixedly connected with the piston 102, when the top plate 100 is pushed up and down, the piston 102 can be pushed to move up and down in the sampling tube 200 under the connecting action of the piston rod 101, and when the piston 102 moves up in the sampling tube 200, the pressure change in the inner cavity at the lower part of the piston 102 can enable external fluid concrete (namely, the fluid concrete in a flowing state before hardening) to be sucked into the sampling tube 200 through the material taking port 205; the bottoms of the two sides of the top plate 100 are fixedly provided with lifting rods 103, the lifting rods 103 slide up and down to penetrate through the corresponding supporting lug seats 201, and the positions of the lifting rods 103 on the supporting lug seats 201 are limited and supported through positioning supporting pieces; the positioning support is arranged on the support ear seat 201;
the setting is in the putty mechanism of sampler barrel 200 inner chamber bottom, putty mechanism with the lifter 103 linkage, the adjustment when the lifter 103 is at the ascending height in vertical direction, putty mechanism intermittent type formula is right get material mouth 205 and block.
Further, with reference to fig. 1, in an embodiment of the present invention, the height adjusting mechanism includes:
the lifting screw rod 400 coaxially penetrates through the piston rod 101, the bottom end of the lifting screw rod 400 penetrates through the bottom plate of the sampling cylinder 200 and extends to the outside of the sampling cylinder 200, a supporting threaded sleeve 209 is fixedly arranged in the inner cavity of the bottom of the sampling cylinder 200, the lifting screw rod 400 penetrates through the supporting threaded sleeve 209 in a threaded connection mode, a sealing sleeve 210 is arranged on the bottom surface of the bottom plate of the sampling cylinder 200, and the lifting screw rod 400 is arranged in a sealing manner and penetrates through the sealing sleeve 210; it will be appreciated, therefore, that in this embodiment, by rotating the lift screw 400, the position of the elevation screw 400 with respect to the sampling tube 200 can be adjusted according to the rotation direction of the elevation screw 400, and therefore, after the sampling tool is placed in a stirring cavity of concrete, the bottom end of the lifting screw rod 400 is propped against the bottom plate of the stirring cavity, wherein, the adjustment of the position of the lifting screw rod 400 relative to the sampling tube 200 is to adjust the distance between the bottom end of the lifting screw rod 400 and the material taking port 205, therefore, after the bottom end of the lifting screw 400 abuts against the bottom of the stirring cavity, the horizontal position of the material taking port 205 in the stirring cavity is related to the distance, therefore, before sampling, the position of the lifting screw rod 400 relative to the sampling cylinder 200 can be adjusted as required, and then a concrete sample at a required horizontal position can be obtained in sampling.
Further, in the embodiment of the present invention, the top end of the lifting screw 400 is further provided with an anti-falling block 401, and the anti-falling block 401 is arranged to facilitate the operation of the rotation of the lifting screw 400 on one hand and prevent the lifting screw 400 from being completely retracted into the piston rod 101 on the other hand;
in a preferred embodiment of the present invention, the supporting ear seat 201 is fixedly welded to the sampling tube 200.
In addition, in another preferred embodiment of the present invention, the supporting ear seat 201 is integrally formed on the sampling tube 200.
As shown in fig. 1 and 3, in the plugging mechanism provided in the embodiment of the present invention, the plugging mechanism includes:
a rotating shaft 301 rotatably arranged in the inner cavity at the bottom of the sampling tube 200;
the material blocking block 300 is matched with the arc-shaped groove 206, the material blocking block 300 is eccentrically and fixedly installed on the rotating shaft 301, and the lifting rod 103 is linked with the rotating shaft 301; it can be understood that, in the process of lifting the lifting rod 103, the rotating shaft 301 can be driven to rotate, the rotating shaft 301 can drive the blocking block 300 to rotate, and since the blocking block 300 is eccentrically installed, the blocking block 300 eccentrically rotating around the rotating shaft 301 can be intermittently placed in the arc-shaped groove 206 and block the material taking port 205.
In the embodiment of the invention, the concrete is sampled in one period of eccentric rotation of the plugging block 300, three stages of plugging, conducting and plugging exist in the material taking port 205 in the process of one rotation of the plugging block 300, and the concrete is sampled on a time node of the material taking port 205 in a conducting state;
therefore, in the specific use process of the sampling tool provided by the embodiment of the present invention, firstly, the extension length of the bottom end of the lifting screw 400 relative to the sampling cylinder 200 is adjusted according to the sampling depth of the target concrete sample, then the sampling cylinder 200 is placed in the concrete mixing cavity, and the bottom end of the lifting screw 400 is abutted against the bottom of the mixing cavity; then, the top plate 100 is lifted upwards to drive the piston 102 to move upwards in the sampling cylinder 200, and based on the pressure change in the inner cavity at the bottom of the sampling cylinder 200, the concrete sample at the target depth in the stirring cavity is pumped into the sampling cylinder 200 through the material taking port 205; after the top plate 100 is pulled up to the designated position, the lift lever 103 is supported and fixed by the positioning support, so that the piston 102 lifted up to the designated position is kept fixed.
Further, as shown in fig. 1, 2, 4 and 5, the positioning support includes:
the rotary drum 108 is rotatably arranged in the accommodating cavity 107, the supporting ear seat 201 is provided with a lifting channel 202, the accommodating cavity 107 is arranged in the supporting ear seat 201 and communicated with the lifting channel 202, and two sides of the rotary drum 108 are respectively provided with a first rectangular cavity 109 and a second rectangular cavity 110;
a second rectangular block 115 slidably disposed in the first rectangular cavity 109 is supported by a second support spring 116; an adjusting shaft 117 is fixedly installed on the second rectangular block 115, and an operating handle 118 is fixedly arranged at the outer end of the adjusting shaft 117; a locking column 119 is arranged on the surface of the operating handle 118 facing the supporting lug seat 201, a locking groove 106 matched with the locking column 119 is formed at the end part of the supporting lug seat 201, and the locking column 119 can be embedded into the corresponding locking groove 106 under the elastic supporting action of the second supporting spring 116;
a first rectangular block 113 which is slidably arranged in the second rectangular cavity 110 is supported by a first supporting spring 114, a supporting rod 111 is fixedly arranged on the first rectangular block 113, a supporting block 112 is fixedly arranged at the other end of the supporting rod 111, and a supporting groove 104 matched with the supporting block 112 is formed in one side of the lifting rod 103; one side of the supporting block 112 has an inclined surface.
In the specific use of the positioning support provided in the embodiment of the present invention, first, the inclined surface of the supporting block 112 is downward, the top plate 100 can be pulled upward, and at this time, the lifting rod 103 moves upward relative to the supporting lug seat 201 until the supporting block 112 aligns with the corresponding supporting groove 104, so that the supporting block 112 can be embedded into the corresponding supporting groove 104, because the top surface of the supporting block 112 is of a planar structure, the lifting rod 103 lifted upward to the designated position will not move downward, and is stable and reliable, so that the piston 102 is stable after moving upward to the designated position in the sampling cylinder 200, and further the sampling operation is completed, and when the top plate 100 is lifted upward to the designated position, the blocking block 300 can be in a stage of blocking the material taking port 205, and material leakage is avoided.
After the sampling is completed, the operating handle 118 is pulled outwards, so that the locking column 119 is separated from the locking groove 106, then the operating handle 118 is operated to drive the rotating cylinder 108 to rotate, and further the inclined surface of the supporting block 112 can be adjusted to face upwards, at this time, the top plate 100 can be pushed downwards, so that the piston 102 moves downwards in the sampling cylinder 200, and the effect of discharging the sample from the sampling cylinder 200 is realized.
With reference to fig. 1 and fig. 4, in order to achieve the linkage effect between the lifting rod 103 and the rotating shaft 301, in the embodiment of the present invention, a toothed plate 105 is fixedly disposed on one side of the lifting rod 103; a supporting shaft 203 is rotatably arranged on the outer wall of the sampling tube 200, and a driven gear 204 meshed with the toothed plate 105 is fixedly arranged on the supporting shaft 203, so that the lifting rod 103 in lifting motion can drive the supporting shaft 203 to rotate;
further, in the embodiment of the present invention, a driven sprocket 302 is fixedly mounted at one end of the rotating shaft 301, a driving sprocket 207 is fixedly disposed on the supporting shaft 203, and the driving sprocket 207 and the driven sprocket 302 are in transmission connection through a transmission chain 208.
Further, in the embodiment of the present invention, the other end of the rotating shaft 301 is rotatably connected to the supporting screw 209.
In the embodiment of the present invention, the lifting rod 103 moving in the vertical direction drives the supporting shaft 203 to rotate, and the rotating supporting shaft 203 drives the rotating shaft 301 to rotate under the linkage action of the driving sprocket 207, the transmission chain 208 and the driven sprocket 302, so that the lifting rod 103 moving in the vertical direction can drive the plugging block 300 to rotate around the rotating shaft 301 by a certain angle.
In addition, in another preferred embodiment of the present invention, there is provided a field sampling method for construction cost budget, the field sampling method comprising:
firstly, adjusting the extending length of the bottom end of the lifting screw rod 400 relative to the sampling cylinder 200 according to the sampling depth of a target concrete sample, and then placing the sampling cylinder 200 in a concrete mixing cavity; the bottom end of the lifting screw rod 400 is abutted against the bottom of the stirring cavity;
then, the top plate 100 is lifted upwards to drive the piston 102 to move upwards in the sampling cylinder 200, and based on the pressure change in the inner cavity at the bottom of the sampling cylinder 200, the concrete sample at the target depth in the stirring cavity is pumped into the sampling cylinder 200 through the material taking port 205; after the top plate 100 is lifted upwards to the designated position, the lifting rod 103 is supported and fixed through the positioning support piece, so that the piston 102 lifted to the designated position is fixed, the sampling work is completed, and when the top plate 100 is lifted upwards to the designated position, the material blocking block 300 is in a stage of blocking the material taking port 205, and material leakage is avoided. The concrete sampling device can effectively solve the problems that the existing concrete sampling device cannot sample concrete on different horizontal line heights and is not beneficial to sampling work.
The above embodiments are merely illustrative of a preferred embodiment, but not limiting. When the invention is implemented, appropriate replacement and/or modification can be carried out according to the requirements of users.
While embodiments of the invention have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. It is therefore intended that the invention not be limited to the exact details and illustrations described and illustrated herein, but fall within the scope of the appended claims and equivalents thereof.
Claims (10)
1. A field sampling tool for project cost budget is characterized in that,
the sampling device comprises a sampling cylinder (200), wherein the sampling cylinder (200) is provided with a height adjusting mechanism for adjusting the height of the sampling cylinder, the outer wall of the sampling cylinder (200) is provided with a supporting lug seat (201), a sealed lifting piston (102) is arranged in the sampling cylinder (200), and the bottom end of the sampling cylinder (200) is provided with a material taking port (205);
a top plate (100) is arranged above the sampling cylinder (200), the top plate (100) is connected with a piston rod (101), and the bottom end of the piston rod (101) extends into the sampling cylinder (200) and is connected with the piston (102); the bottom of the top plate (100) is provided with a lifting rod (103), the lifting rod (103) penetrates through the supporting lug seat (201) in a vertical sliding mode, and a positioning support piece is arranged between the lifting rod (103) and the supporting lug seat (201);
be equipped with putty mechanism in sampler barrel (200), putty mechanism with lifter (103) linkage, the adjustment when lifter (103) is at the ascending height of vertical side, putty mechanism intermittent type formula is right get material mouth (205) and block up.
2. The on-site sampling tool for engineering cost budget of claim 1, wherein the height adjusting mechanism comprises a lifting screw rod (400), the lifting screw rod (400) is coaxially arranged in the piston rod (101) in a penetrating manner, the bottom end of the lifting screw rod (400) penetrates through the bottom plate of the sampling cylinder (200) and extends to the outside of the sampling cylinder (200), a supporting threaded sleeve (209) is arranged in the inner cavity of the bottom of the sampling cylinder (200), and the lifting screw rod (400) penetrates through the supporting threaded sleeve (209) in a threaded connection manner.
3. The on-site sampling tool for engineering cost budget according to claim 2, wherein at least two sets of material taking ports (205) are arranged at the bottom end of the sampling cylinder (200), at least two sets of arc-shaped grooves (206) are arranged at the bottom of the inner cavity of the sampling cylinder (200), and each set of arc-shaped grooves (206) is communicated with each set of material taking ports (205).
4. The on-site sampling tool for engineering cost budget according to claim 3, wherein a sealing sleeve (210) is arranged on the bottom surface of the sampling tube (200), and the lifting screw rod (400) is arranged in a sealing mode to penetrate through the sealing sleeve (210).
5. The on-site sampling tool for engineering cost budgeting according to claim 4, wherein the blocking mechanism comprises a rotating shaft (301) rotatably arranged on the sampling cylinder (200) and a blocking block (300) matched with the arc-shaped groove (206), the blocking block (300) is eccentrically and fixedly arranged on the rotating shaft (301), and a linkage mechanism is connected between the lifting rod (103) and the rotating shaft (301).
6. The on-site sampling tool for engineering cost budget of claim 5, wherein the linkage mechanism comprises a toothed plate (105), a supporting shaft (203), a driven gear (204), a driving sprocket (207), a driven sprocket (302) and a transmission chain (208), the toothed plate (105) is fixedly arranged on one side of the lifting rod (103), the supporting shaft (203) is rotatably arranged on the outer wall of the sampling cylinder (200), the driven gear (204) meshed with the toothed plate (105) is fixedly arranged on the supporting shaft (203), the driven sprocket (302) is fixedly arranged at one end of the rotating shaft (301), the driving sprocket (207) is fixedly arranged on the supporting shaft (203), and the driving sprocket (207) is in transmission connection with the driven sprocket (302) through the transmission chain (208).
7. The construction cost budgeting field sampling tool of claim 6, wherein one end of the rotary shaft (301) is rotatably connected to the support threaded sleeve (209).
8. The on-site sampling tool for engineering cost budget according to any one of claims 1 to 7, wherein the positioning support comprises a rotary cylinder (108), the support ear seat (201) is provided with a lifting channel (202), an accommodating cavity (107) communicated with the lifting channel (202) is arranged in the support ear seat (201), the rotary cylinder (108) is rotatably arranged in the accommodating cavity (107), and two sides of the rotary cylinder (108) are respectively provided with a first rectangular cavity (109) and a second rectangular cavity (110); the utility model discloses a supporting structure, including first rectangle chamber (110), second rectangle chamber (110) slide in and be equipped with first rectangle piece (113), be equipped with between the inner wall of second rectangle chamber (110) and first rectangle piece (113) first supporting spring (114), fixed mounting has branch (111) on first rectangle piece (113), the other end fixed mounting of branch (111) has supporting shoe (112), one side of supporting shoe (112) has an inclined plane, one side of lifter (103) seted up with supporting groove (104) of supporting shoe (112) looks adaptation.
9. The on-site sampling tool for engineering cost budgeting according to claim 8, wherein a second rectangular block (115) is slidably arranged in the first rectangular cavity (109), a second supporting spring (116) is arranged between the inner wall of the first rectangular cavity (109) and the second rectangular block (115), an adjusting shaft (117) is fixedly arranged on the second rectangular block (115), and an operating handle (118) is fixedly arranged at the outer end of the adjusting shaft (117); orientation handle (118) surface of support ear seat (201) is provided with locking post (119), the tip of supporting ear seat (201) seted up with locking groove (106) of locking post (119) looks adaptation, under the elastic support effect of second supporting spring (116), can make locking post (119) imbed corresponding locking groove (106) in.
10. A field sampling method for project cost budget is characterized by comprising the following steps:
according to the sampling depth of a target concrete sample, adjusting the extension length of the bottom end of the lifting screw rod (400) relative to the sampling cylinder (200), and then placing the sampling cylinder (200) in a concrete mixing cavity;
the bottom end of the lifting screw rod (400) is propped against the bottom of the stirring cavity;
the top plate (100) is lifted upwards, the piston (102) is driven to move upwards in the sampling cylinder (200), and a concrete sample with the target depth in the stirring cavity is pumped into the sampling cylinder (200) through the material taking port (205) based on the pressure change in the inner cavity at the bottom of the sampling cylinder (200);
after the top plate (100) is lifted upwards to the designated position, the lifting rod (103) is supported and fixed through the positioning support piece, so that the piston (102) lifted to the designated position is kept fixed, and the sampling work is completed.
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| CN202110722384.8A CN113551947A (en) | 2021-06-29 | 2021-06-29 | On-site sampling tool and sampling method for engineering cost budget |
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| CN202110722384.8A CN113551947A (en) | 2021-06-29 | 2021-06-29 | On-site sampling tool and sampling method for engineering cost budget |
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| CN116380536A (en) * | 2023-05-26 | 2023-07-04 | 成都工业职业技术学院 | Railway engineering manages sampling tool |
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