Field sampling tool for project cost budgeting

Abstract

The invention relates to the technical field of sampling tools, in particular to an on-site sampling tool for engineering cost budgeting, which comprises an outer frame and further comprises a sampling mechanism, the sampling mechanism comprises a stainless steel inner frame, and the stainless steel inner frame is placed in the outer frame; a polyfluortetraethylene plate is hoisted and placed in the stainless steel inner frame through external telescopic hoisting equipment, the polyfluortetraethylene plate is fixedly connected with a pipe sleeve, a communicating pipe is communicated with the interior of the pipe sleeve, and the bottom end of the communicating pipe is communicated with the inner bottom of the stainless steel inner frame. By arranging the sampling mechanism and the release agent mechanism, when an external cement pump continuously introduces concrete into the position below a polytetrafluoroethylene plate in the stainless steel inner frame, the polytetrafluoroethylene plate is pushed to move upwards, so that a comprehensive smearing effect is formed on the inner wall of the stainless steel inner frame through the coating assembly; a release agent film is formed on the inner wall of the stainless steel inner frame, subsequent concrete demolding is facilitated, and the efficiency of obtaining a concrete sample from the stainless steel inner frame is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sampling tools, and in particular to an on-site sampling tool for engineering cost budgeting. Background Art

[0002] Project cost refers to the total cost of carrying out a certain project construction. When estimating the cost of project construction, it is usually necessary to sample and analyze different construction materials in corresponding quantities and methods. Concrete is one of the important construction materials. It is necessary to sample and analyze the concrete used in the project, and use the analysis results as an influencing factor for the construction project cost budget.

[0003] When sampling and analyzing concrete, it is necessary to sample and analyze the properties of the concrete after hardening. When sampling concrete on site, workers or mixing equipment usually mix the concrete, randomly take some concrete and put it into a container, wait for the concrete to solidify, then take the solidified concrete out of the container, and finally use detection tools to sample and analyze the solidified concrete. However, in this way, the sampling container is easily adhered to the concrete, which is very inconvenient to demold, reducing the sampling efficiency. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art that the sampling container is easily adhered to the concrete, which is very inconvenient during demoulding and reduces the sampling efficiency, and to propose an on-site sampling tool for engineering cost budgeting.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A field sampling tool for engineering cost budgeting, comprising an outer frame and:

[0007] The sampling mechanism comprises a stainless steel inner frame, the stainless steel inner frame is placed in the outer frame, a polytetrafluoroethylene plate is hoisted and placed in the stainless steel inner frame by an external retractable hoisting device, the polytetrafluoroethylene plate is fixedly connected with a pipe sleeve, a connecting pipe is connected in the pipe sleeve, the bottom end of the connecting pipe is connected with the bottom of the stainless steel inner frame, and the top end is connected with a hose, wherein the end of the hose away from the connecting pipe is connected with the output end of an external cement pump;

[0008] A demoulding agent structure, the demoulding agent structure includes a coating component and a heat dissipation component, the coating component is connected to a polytetrafluoroethylene plate, a polytetrafluoroethylene ring is fixedly connected to the outer peripheral side of the polytetrafluoroethylene plate, the outer side of the polytetrafluoroethylene ring is sealed against the inner wall of a stainless steel inner frame, wherein the inner wall of the stainless steel inner frame, the top of the polytetrafluoroethylene ring and the outer peripheral side of the polytetrafluoroethylene plate form an annular pool with an upper opening, the coating component is used to add a demoulding agent into the annular pool, the stainless steel inner frame and the outer frame are sealed and rotatably matched, wherein the outer peripheral side of the stainless steel inner frame and the inner peripheral side of the outer frame are sealed to form a heat dissipation cavity, the heat dissipation component is connected to the heat dissipation cavity, wherein the heat dissipation component is used to dissipate heat from the stainless steel inner frame.

[0009] Preferably, the coating component includes a liquid cavity, which is annular and coaxially opened inside the polytetrafluoroethylene plate. The top of the liquid cavity is connected to a liquid adding pipe, and the outer peripheral side is connected to multiple liquid outlet pipes. The end of the liquid outlet pipe away from the liquid cavity is connected to the top of the annular pool, and the top of the liquid adding pipe is connected to the output end of an external release agent supply source.

[0010] Preferably, a vibrator is installed on the top of the polytetrafluoroethylene plate, and the polytetrafluoroethylene ring is elastic, wherein the maximum radius of the vibration track of the vibrator is smaller than the elastic expansion and contraction distance of the polytetrafluoroethylene ring.

[0011] Preferably, the connecting pipe fitting comprises a stainless steel pipe, which is sealingly and slidingly connected in a pipe sleeve, wherein there is friction between the stainless steel pipe and the pipe sleeve, the bottom end of the stainless steel pipe is connected to a stainless steel inner frame, and the top end is connected to a connecting pipe, and the connecting pipe is connected to a hose away from one end of the stainless steel pipe, wherein the vibrator drives the stainless steel pipe extending under the polytetrafluoroethylene plate to vibrate when working.

[0012] Preferably, the heat dissipation component includes a liquid inlet pipe, which is connected to the outside of the heat dissipation cavity. A valve is installed on the liquid inlet pipe, wherein the liquid inlet pipe is used to pass external coolant into the heat dissipation cavity.

[0013] Preferably, the heat dissipation assembly also includes a magnetic refrigeration structure, which includes a gadolinium metal plate, a permanent magnet and a driving component, wherein a plurality of the gadolinium metal plates are fixedly connected to the outer peripheral side of the stainless steel inner frame, wherein the gadolinium metal plate is a magnetic refrigeration material, and a plurality of the permanent magnets are fixedly connected to the inner peripheral side of the outer frame, wherein the plurality of gadolinium metal plates and the plurality of permanent magnets correspond one to one and are all located in the heat dissipation cavity, wherein the driving component is connected to the inner bottom of the outer frame, and the output end is sealed and extends into the heat dissipation cavity, and is detachably connected to the bottom of the stainless steel inner frame, wherein the driving component is used to drive the stainless steel inner frame to rotate.

[0014] Preferably, the driving component includes a rotating motor, a storage cavity is opened at the bottom of the outer frame, the rotating motor is installed at the bottom of the storage cavity, the output end of the rotating motor is coaxially fixedly connected with a connecting shaft, the end of the connecting shaft away from the rotating motor is sealed and passes through the outer frame and extends into the heat dissipation cavity, and the end of the connecting shaft extending into the heat dissipation cavity is detachably connected to the bottom of the stainless steel inner frame.

[0015] Preferably, both sides of the storage cavity are connected with a plurality of heat dissipation holes, and the plurality of heat dissipation holes are connected with the outside world away from one end of the storage cavity.

[0016] Preferably, a plurality of solid blocks are fixedly connected to the bottom of the stainless steel inner frame, and the plurality of solid blocks are located in the heat dissipation cavity.

[0017] Preferably, the bottom edges of the inner stainless steel frame are all provided with rounded corners.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] 1. The present invention provides a sampling mechanism and a demoulding agent mechanism. When an external cement pump continuously passes concrete into the lower part of the polytetrafluoroethylene plate in the stainless steel inner frame, the polytetrafluoroethylene plate is pushed to move upward, thereby forming a comprehensive coating effect on the inner wall of the stainless steel inner frame through the coating component, forming a demoulding agent film on the inner wall of the stainless steel inner frame, facilitating the subsequent demoulding of concrete and improving the efficiency of obtaining concrete samples from the stainless steel inner frame.

[0020] 2. The present invention provides a vibrator. When the vibrator operates at low power, it drives the polytetrafluoroethylene plate to vibrate, thereby improving the overall coating effect of the coating component on the inner wall of the stainless steel inner frame, and facilitating the subsequent demoulding of the concrete. At the same time, when the vibrator operates at high power, after conveying the concrete, the connecting pipe extends the stainless steel roller therein under the polytetrafluoroethylene plate and inserts it into the concrete. The vibrator vibrates and defoams the inside of the concrete through the stainless steel pipe, thereby improving the quality of the concrete block after solidification and improving the sampling effect.

[0021] 3. The present invention sets a heat dissipation component, uses a coolant and a magnetic refrigeration structure, and drives the stainless steel inner frame to rotate when the rotating motor is working. When the gadolinium metal plate rotates, it will be demagnetized and absorb the surrounding heat after passing through the magnetic field. After entering the magnetic field, it will be magnetized and release heat to the surrounding. Combined with the coolant that dissipates heat outward through the outer frame, the stainless steel inner frame can be cooled. On the one hand, the low temperature will increase the viscosity of the release agent, better preventing the contact between the concrete and the inner wall of the stainless steel inner frame. On the other hand, the cooled release agent can slow down the hydration reaction of the concrete to a certain extent, reduce its adhesion to the inner wall of the stainless steel inner frame, and facilitate subsequent demolding.

[0022] 4. The present invention provides a rotating motor. When the polytetrafluoroethylene plate is restricted by external lifting equipment and cannot rotate, the stainless steel inner frame rotates relative to the polytetrafluoroethylene ring when being driven to rotate, thereby further improving the effect of the polytetrafluoroethylene ring applying the release agent to the inner wall of the stainless steel inner frame.

[0023] 5. The present invention provides a solid block. When the stainless steel inner frame rotates, the solid block at the bottom thereof stirs the coolant in the heat dissipation cavity, thereby improving the fluidity of the coolant and the cooling effect. At the same time, when the solidified concrete in the stainless steel inner frame is subsequently taken out, the solid block is struck. The existence of the solid block reduces the force area, and the pressure per unit area is greater, making it easier to demold the concrete block in the stainless steel inner frame without damaging the stainless steel inner frame. The concrete block can be demolded quickly and successfully with the release agent. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The present invention is a schematic diagram of the overall axial structure of an on-site sampling tool for engineering cost budgeting.

[0025] Figure 2 This is a schematic diagram of the outer frame and heat dissipation hole structure of an on-site sampling tool for engineering cost budgeting proposed by the present invention.

[0026] Figure 3 The present invention provides a schematic diagram of the stainless steel inner frame and rounded corner structure of a field sampling tool for project cost estimation.

[0027] Figure 4 This is a schematic structural diagram of a solid block and a gadolinium metal plate of an on-site sampling tool for engineering cost estimation proposed by the present invention.

[0028] Figure 5 The present invention provides a schematic structural diagram of a polytetrafluoroethylene plate and a vibrator for a field sampling tool for project cost estimation.

[0029] Figure 6 The present invention provides a schematic diagram of the structure of the connecting pipes of a field sampling tool for project cost estimation.

[0030] Figure 7 This is a schematic diagram of the half-section structure of the outer frame and stainless steel inner frame of an on-site sampling tool for engineering cost budgeting proposed by the present invention.

[0031] In the figure: 1 outer frame, 2 heat dissipation holes, 3 liquid inlet pipe, 4 storage chamber, 5 rotating motor, 6 connecting shaft, 7 solid block, 8 stainless steel inner frame, 9 gadolinium metal plate, 10 fillet, 11 heat dissipation chamber, 12 permanent magnet, 13 polytetrafluoroethylene plate, 14 liquid chamber, 15 liquid outlet pipe, 16 vibrator, 17 pipe sleeve, 18 stainless steel pipe, 19 take-over connector, 20 hose, 21 liquid adding pipe, 22 polytetrafluoroethylene ring. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] Reference Figure 1 and Figure 7 A field sampling tool for engineering cost budgeting includes an outer frame 1 and a sampling mechanism, the sampling mechanism includes a stainless steel inner frame 8, the stainless steel inner frame 8 is placed in the outer frame 1, a polytetrafluoroethylene plate 13 is hoisted and placed in the stainless steel inner frame 8 by an external retractable hoisting device, the polytetrafluoroethylene plate 13 is fixedly connected with a pipe sleeve 17, a connecting pipe is connected in the pipe sleeve 17, the bottom end of the connecting pipe is connected to the bottom of the stainless steel inner frame 8, and the top end is connected to a hose 20, wherein the end of the hose 20 away from the connecting pipe is connected to the output end of an external cement pump.

[0034] Reference Figure 5-6 , a demoulding agent structure, the demoulding agent structure includes a coating component and a heat dissipation component, the coating component is connected to the polytetrafluoroethylene plate 13, a polytetrafluoroethylene ring 22 is fixedly connected to the outer peripheral side of the polytetrafluoroethylene plate 13, the outer side of the polytetrafluoroethylene ring 22 is sealed against the inner wall of the stainless steel inner frame 8, wherein the inner wall of the stainless steel inner frame 8, the top of the polytetrafluoroethylene ring 22 and the outer peripheral side of the polytetrafluoroethylene plate 13 form an annular pool with an upper opening, the coating component is used to add a demoulding agent into the annular pool, the stainless steel inner frame 8 is sealed and rotated with the outer frame 1, wherein the outer peripheral side of the stainless steel inner frame 8 and the inner peripheral side of the outer frame 1 are sealed to form a heat dissipation cavity 11, the heat dissipation component is connected to the heat dissipation cavity 11, wherein the heat dissipation component is used to dissipate the heat of the stainless steel inner frame 8.

[0035] The polytetrafluoroethylene plate 13 and the polytetrafluoroethylene ring 22 are both made of polytetrafluoroethylene material, and the properties of the polytetrafluoroethylene material itself are utilized to conveniently reduce the adhesion effect between the polytetrafluoroethylene material and the concrete, thereby facilitating the subsequent demoulding operation.

[0036] The coating component includes a liquid chamber 14, which is annular and coaxially opened inside the polytetrafluoroethylene plate 13. The top of the liquid chamber 14 is connected to a liquid adding pipe 21, and the outer side is connected to multiple liquid outlet pipes 15. The end of the liquid outlet pipe 15 away from the liquid chamber 14 is connected to the top of the annular pool, and the top of the liquid adding pipe 21 is connected to the output end of the external release agent supply source.

[0037] A vibrator 16 is installed on the top of the polytetrafluoroethylene plate 13 , and the polytetrafluoroethylene ring 22 is elastic, wherein the maximum radius of the vibration track of the vibrator 16 is smaller than the elastic expansion and contraction distance of the polytetrafluoroethylene ring 22 .

[0038] The vibrators 16 are multiple and symmetrically distributed on the polytetrafluoroethylene plate 13 to improve the uniformity of vibration.

[0039] The surface where the polytetrafluoroethylene ring 22 contacts the stainless steel inner frame 8 is a finely ground surface, which improves the coating effect of the release agent.

[0040] The connecting pipe fittings include a stainless steel pipe 18, which is sealed and slidably connected in the pipe sleeve 17, wherein there is friction between the stainless steel pipe 18 and the pipe sleeve 17, the bottom end of the stainless steel pipe 18 is connected to the stainless steel inner frame 8, and the top end is connected to a connecting pipe 19, and the connecting pipe 19 is connected to a hose 20 at one end away from the stainless steel pipe 18, wherein the vibrator 16 drives the stainless steel pipe 18 extending under the polytetrafluoroethylene plate 13 to vibrate when working.

[0041] The heat dissipation component includes a liquid inlet pipe 3 , which is connected to the outside of the heat dissipation cavity 11 . A valve is installed on the liquid inlet pipe 3 , wherein the liquid inlet pipe 3 is used to pass external cooling liquid into the heat dissipation cavity 11 .

[0042] Reference Figure 2-Figure 4 The heat dissipation component also includes a magnetic refrigeration structure, which includes a gadolinium metal plate 9, a permanent magnet 12 and a driving component. Multiple gadolinium metal plates 9 are fixedly connected to the outer peripheral side of the stainless steel inner frame 8, wherein the gadolinium metal plate 9 is a magnetic refrigeration material, and multiple permanent magnets 12 are fixedly connected to the inner peripheral side of the outer frame 1, wherein the multiple gadolinium metal plates 9 and the multiple permanent magnets 12 correspond one by one and are all located in the heat dissipation cavity 11, the driving component is connected to the inner bottom of the outer frame 1, and the output end is sealed and extends into the heat dissipation cavity 11, and is detachably connected to the bottom of the stainless steel inner frame 8, wherein the driving component is used to drive the stainless steel inner frame 8 to rotate.

[0043] The magnetic refrigeration material has a magnetocaloric effect. When it enters the magnetic field, it will be magnetized and release heat. When it leaves the magnetic field, it will be demagnetized and absorb heat. In combination with the coolant that dissipates heat outward, a cooling effect is formed, which facilitates the gadolinium metal plate 9 to form a cooling effect on the inner stainless steel inner frame 8, facilitating the subsequent demolding effect.

[0044] The driving component includes a rotating motor 5. A storage cavity 4 is opened at the bottom of the outer frame 1. The rotating motor 5 is installed at the bottom of the storage cavity 4. The output end of the rotating motor 5 is coaxially fixedly connected with a connecting shaft 6. The end of the connecting shaft 6 away from the rotating motor 5 is sealed and passes through the outer frame 1 and extends into the heat dissipation cavity 11. The end of the connecting shaft 6 extending into the heat dissipation cavity 11 is detachably connected to the bottom of the stainless steel inner frame 8.

[0045] Multiple heat dissipation holes 2 are connected to both sides of the storage cavity 4. The multiple heat dissipation holes 2 are connected to the outside world at one end away from the storage cavity 4, and the heat dissipation holes 2 facilitate the heat dissipation of the rotating motor 5 during operation.

[0046] A plurality of solid blocks 7 are fixedly connected to the bottom of the stainless steel inner frame 8 , and the plurality of solid blocks 7 are located in the heat dissipation cavity 11 .

[0047] The bottom edges of the stainless steel inner frame 8 are all provided with rounded corners 10 to facilitate demoulding of the concrete from the stainless steel inner frame 8 after solidification.

[0048] When the present invention is working, the stainless steel inner frame 8 is placed in the outer frame 1, so that the bottom of the stainless steel inner frame 8 is connected to the connecting shaft 6, so that the subsequent rotation motor 5 can drive the stainless steel inner frame 8 to rotate through the connecting shaft 6;

[0049] Then, coolant is added into the heat dissipation cavity 11 through the liquid inlet pipe 3;

[0050] Then add a small amount of release agent to the bottom of the stainless steel inner frame 8 and make it evenly adhere to the bottom of the stainless steel inner frame 8;

[0051] Then hoist the polytetrafluoroethylene plate 13 and place it at the bottom of the stainless steel inner frame 8;

[0052] Finally, the release agent is added into the liquid cavity 14 through the liquid adding pipe 21 to complete the preparation work;

[0053] At this time, the vibrator 16 on the polytetrafluoroethylene plate 13 is started, and the external cement pump is started. The output end of the cement pump introduces concrete into the bottom of the polytetrafluoroethylene plate 13 in the stainless steel inner frame 8 through the hose 20 and the connecting pipe. The polytetrafluoroethylene plate 13 will float on the concrete. With the continuous introduction, the polytetrafluoroethylene plate 13 will slowly accumulate and push the polytetrafluoroethylene plate 13 upward. In the process of the polytetrafluoroethylene plate 13 moving upward, since the liquid adding pipe 21 will continue to replenish the release agent into the liquid cavity 14, the liquid outlet pipe 15 will overflow the release agent and fall into the annular pool on the polytetrafluoroethylene ring 22, forming a liquid surface of the release agent. This liquid surface will follow the upward movement of the polytetrafluoroethylene plate 13 and evenly infiltrate the inner wall of the stainless steel inner frame 8. The polytetrafluoroethylene ring 22 contacts the inner wall of the stainless steel inner frame 8, thereby forming a comprehensive coating effect on the inner wall of the stainless steel inner frame 8, and forming a release agent film on the inner wall of the stainless steel inner frame 8, which is convenient for the subsequent demoulding of the concrete.

[0054] And the vibrator 16 is running at low power at this time, forming a vibration effect on the polytetrafluoroethylene plate 13, further assisting the polytetrafluoroethylene ring 22 to apply the release agent to the inner wall of the stainless steel inner frame 8, thereby improving the coating effect;

[0055] While filling the concrete, the rotating motor 5 works, and its output end drives the stainless steel inner frame 8 to rotate through the connecting shaft 6. The polytetrafluoroethylene plate 13 cannot rotate due to the external lifting equipment. When the stainless steel inner frame 8 is driven to rotate, it rotates relative to the polytetrafluoroethylene ring 22, thereby improving the effect of applying the release agent to the polytetrafluoroethylene ring 22.

[0056] At the same time, during the overcharging of the rotation of the stainless steel inner frame 8, the gadolinium metal plate 9 attached to the outer side of the stainless steel inner frame 8 will continuously pass through the magnetic field generated by the permanent magnet 12 on the inner wall of the outer frame 1. After passing through the magnetic field, the gadolinium metal plate 9 will be demagnetized and absorb the surrounding heat. After entering the magnetic field, the gadolinium metal plate 9 will be magnetized and release heat to the surrounding. Combined with the coolant that dissipates heat outward through the outer frame 1, the stainless steel inner frame 8 can be cooled to keep the temperature of the stainless steel inner frame 8 low. On the one hand, the low temperature will increase the viscosity of the release agent, making it more firmly attached to the inner wall of the stainless steel inner frame 8, forming a more uniform and thicker isolation layer, thereby better preventing the direct contact between the concrete and the inner wall of the stainless steel inner frame 8. On the other hand, the release agent after cooling can slow down the hydration reaction of the concrete to a certain extent, reduce its bonding force with the inner wall of the stainless steel inner frame 8, and make subsequent demoulding more convenient.

[0057] When the stainless steel inner frame 8 rotates, the solid block 7 at the bottom thereof also rotates. The rotating solid block 7 stirs the coolant in the heat dissipation cavity 11, thereby improving the fluidity of the coolant and the cooling effect.

[0058] When the sampling is halfway done, stop adding the release agent and concrete, insert the stainless steel pipe 18 in the connecting pipe into the concrete below the polytetrafluoroethylene plate 13 through the pipe sleeve 17, increase the power of the vibrator 16 to make the vibrator 16 run at high power, and then vibrate and defoam the concrete through the stainless steel pipe 18 to improve the quality of the concrete block after solidification. After the defoaming is completed, retract the stainless steel pipe 18 so that the bottom end of the stainless steel pipe 18 is flush with the pipe sleeve 17, and continue filling the concrete;

[0059] After the concrete filling is completed, the polytetrafluoroethylene plate 13 is taken out. Since the material of the polytetrafluoroethylene plate 13 is rarely adhered to the concrete, it is only necessary to rinse the bottom of the polytetrafluoroethylene plate 13;

[0060] After waiting for the concrete to solidify, take out the stainless steel inner frame 8. The rounded corners 10 at the bottom of the stainless steel inner frame 8 reduce the sharp edges at the inner corners of the bottom of the stainless steel inner frame 8, so that during the demoulding process, the contact area becomes smaller and the friction force is correspondingly reduced, thereby reducing the resistance to be overcome during demoulding, which helps to more smoothly remove the concrete block from the stainless steel inner frame 8. At the same time, the solid block 7 at the bottom of the stainless steel inner frame 8 is hit. The existence of the solid block 7 reduces the force area, and the pressure per unit area will be greater, making it easier to demould the concrete block in the stainless steel inner frame 8 without damaging the stainless steel inner frame 8. After slightly hitting the solid block 7, the concrete block can be quickly and successfully demoulded with the effect of the release agent.

[0061] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A field sampling tool for project cost budgeting, comprising an outer frame (1), characterized in that: Also includes: A sampling mechanism, the sampling mechanism comprising a stainless steel inner frame (8), the stainless steel inner frame (8) being placed in an outer frame (1), a polytetrafluoroethylene plate (13) being hoisted and placed in the stainless steel inner frame (8) by means of an external retractable hoisting device, the polytetrafluoroethylene plate (13) being fixedly connected to a pipe sleeve (17), a connecting pipe being connected in the pipe sleeve (17), the bottom end of the connecting pipe being connected to the bottom of the stainless steel inner frame (8), and the top end being connected to a hose (20), wherein the end of the hose (20) away from the connecting pipe is connected to an output end of an external cement pump; A demoulding agent structure, the demoulding agent structure comprising a coating component and a heat dissipation component, the coating component being connected to a polytetrafluoroethylene plate (13), the outer peripheral side of the polytetrafluoroethylene plate (13) being fixedly connected to a polytetrafluoroethylene ring (22), the outer side of the polytetrafluoroethylene ring (22) being sealed against the inner wall of a stainless steel inner frame (8), wherein the inner wall of the stainless steel inner frame (8), the top of the polytetrafluoroethylene ring (22) and the outer peripheral side of the polytetrafluoroethylene plate (13) form an annular pool with an upper opening, the coating component being used for adding demoulding agent into the annular pool, the stainless steel inner frame (8) being in sealing rotational cooperation with the outer frame (1), wherein the outer peripheral side of the stainless steel inner frame (8) and the inner peripheral side of the outer frame (1) are sealed to form a heat dissipation cavity (11), the heat dissipation component being connected to the heat dissipation cavity (11), wherein the heat dissipation component is used for dissipating heat from the stainless steel inner frame (8).

2. The on-site sampling tool for construction cost budgeting according to claim 1, characterized in that: The coating assembly comprises a liquid cavity (14), the liquid cavity (14) is annular, the liquid cavity (14) is coaxially arranged inside a polytetrafluoroethylene plate (13), the top of the liquid cavity (14) is connected to a liquid adding pipe (21), and the outer peripheral side is connected to a plurality of liquid outlet pipes (15), one end of the liquid outlet pipe (15) away from the liquid cavity (14) is connected to the top of the annular pool, and the top end of the liquid adding pipe (21) is connected to the output end of an external release agent supply source.

3. The on-site sampling tool for construction cost budgeting according to claim 2, characterized in that: A vibrator (16) is installed on the top of the polytetrafluoroethylene plate (13), and the polytetrafluoroethylene ring (22) is elastic, wherein the maximum radius of the vibration track of the vibrator (16) is smaller than the elastic expansion distance of the polytetrafluoroethylene ring (22).

4. The on-site sampling tool for construction cost budgeting according to claim 3 is characterized in that: The connecting pipe part comprises a stainless steel pipe (18), wherein the stainless steel pipe (18) is sealingly and slidably connected in a pipe sleeve (17), wherein friction exists between the stainless steel pipe (18) and the pipe sleeve (17), wherein the bottom end of the stainless steel pipe (18) is connected to the inside of a stainless steel inner frame (8), and the top end is connected to a connecting pipe (19), wherein the connecting pipe (19) is connected to a hose (20) at one end away from the stainless steel pipe (18), wherein the vibrator (16) drives the stainless steel pipe (18) extending below the polytetrafluoroethylene plate (13) to vibrate when in operation.

5. The on-site sampling tool for construction cost budgeting according to claim 1, characterized in that: The heat dissipation component comprises a liquid inlet pipe (3), the liquid inlet pipe (3) is connected to the outside of the heat dissipation cavity (11), a valve is installed on the liquid inlet pipe (3), and the liquid inlet pipe (3) is used to pass external cooling liquid into the heat dissipation cavity (11).

6. The on-site sampling tool for construction cost budgeting according to claim 5, characterized in that: The heat dissipation component further comprises a magnetic refrigeration structure, the magnetic refrigeration structure comprising a gadolinium metal plate (9), a permanent magnet (12) and a driving component, wherein a plurality of the gadolinium metal plates (9) are fixedly connected to the outer peripheral side of the stainless steel inner frame (8), wherein the gadolinium metal plates (9) are magnetic refrigeration materials, and a plurality of the permanent magnets (12) are fixedly connected to the inner peripheral side of the outer frame (1), wherein the plurality of gadolinium metal plates (9) and the plurality of permanent magnets (12) correspond one to one and are all located in the heat dissipation cavity (11), and the driving component is connected to the inner bottom of the outer frame (1), and the output end is sealed and extends into the heat dissipation cavity (11), and is detachably connected to the bottom of the stainless steel inner frame (8), wherein the driving component is used to drive the stainless steel inner frame (8) to rotate.

7. The on-site sampling tool for construction cost budgeting according to claim 6, characterized in that: The driving component comprises a rotating motor (5), a storage cavity (4) is provided at the bottom of the outer frame (1), the rotating motor (5) is installed at the bottom of the storage cavity (4), the output end of the rotating motor (5) is coaxially fixedly connected with a connecting shaft (6), the end of the connecting shaft (6) away from the rotating motor (5) is sealed and penetrates the outer frame (1) and extends into the heat dissipation cavity (11), and the end of the connecting shaft (6) extending into the heat dissipation cavity (11) is detachably connected to the bottom of the stainless steel inner frame (8).

8. The on-site sampling tool for construction cost budgeting according to claim 7, characterized in that: A plurality of heat dissipation holes (2) are connected to both sides of the storage cavity (4), and the plurality of heat dissipation holes (2) are connected to the outside at one end away from the storage cavity (4).

9. The on-site sampling tool for construction cost budgeting according to claim 6, characterized in that: A plurality of solid blocks (7) are fixedly connected to the bottom of the stainless steel inner frame (8), and the plurality of solid blocks (7) are located in the heat dissipation cavity (11).

10. The on-site sampling tool for construction cost budgeting according to claim 1, characterized in that: The inner bottom edges of the stainless steel inner frame (8) are all provided with rounded corners (10).

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