A sampler for asphalt

Abstract

This utility model discloses a sampler for asphalt, comprising a sampling cylinder with a sampling space inside and a sealing mechanism for closing the sampling space. The bottom port of the sampling cylinder is a feed inlet, which is equipped with a ring-shaped blade for inserting into the asphalt material. The sealing mechanism includes a sealing component and a lifting drive component. The sealing component is located on both sides inside the sampling cylinder. The sealing component includes a sealing plate for closing the feed inlet, a gear shaft, and a lifting rod for driving the gear shaft to rotate. One end of the sealing plate is connected to the gear shaft to swing in accordance with the rotation of the gear shaft. One end of the lifting rod is connected to the lifting drive component for lifting drive, and the other end is equipped with a rack that meshes with the gear shaft. The meshing point of the rack and the gear shaft is located between the two sides of the gear shaft. Using this utility model, standardized asphalt samples can be obtained, and sampling is convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of asphalt material testing tools, and in particular to a sampler for asphalt. Background Technology

[0002] In numerous engineering fields such as road construction and building waterproofing, asphalt, as a key base material, directly affects the quality and service life of projects. Therefore, comprehensive and accurate testing of asphalt materials is crucial. Currently, common methods for sampling solid asphalt include manual cutting or prying using simple tools such as knives and shovels, and the use of core sampling machines. Manual cutting and prying relies entirely on the operator's experience and skill, making it difficult to guarantee that the sample's shape, size, and integrity meet the standards of various testing items. Furthermore, the operation is extremely slow and inefficient. While core sampling machines can obtain relatively regular samples, the equipment is large and complex to operate, also resulting in low sampling efficiency. Moreover, regardless of the method used, the samples usually require secondary heating after being sent to the laboratory to meet the sample preparation requirements of different testing items. During secondary heating, the asphalt is exposed to a high-temperature environment for an extended period, easily undergoing oxidation, volatilization, and other chemical reactions, leading to changes in its chemical composition and physical structure. This distorts the test results and also consumes a significant amount of energy, increasing testing costs and time. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a sampler that can obtain standardized asphalt samples and is convenient for sampling.

[0004] To solve the above-mentioned technical problems, this utility model provides a sampler, including a sampling cylinder with a sampling space inside and a sealing mechanism for sealing the sampling space. The bottom port of the sampling cylinder is a feed inlet, and the feed inlet is provided with a ring blade for insertion into asphalt material.

[0005] The sealing mechanism includes a sealing component and a lifting drive component for controlling the opening and closing of the sealing component. The sealing component is located on both sides inside the sampling cylinder.

[0006] The sealing assembly includes a sealing plate for sealing the feed inlet, a gear shaft mounted on the sampling cylinder, and a lifting rod for driving the gear shaft to rotate. One end of the sealing plate is connected to the gear shaft so as to swing in accordance with the rotation of the gear shaft.

[0007] One end of the lifting rod is connected to the lifting drive assembly for lifting drive, and the other end is provided with a rack that meshes with the gear shaft. The meshing point of the rack and the gear shaft is located between the two gear shafts.

[0008] As an improvement to the above solution, the lifting drive assembly includes a synchronous drive rod connected to the lifting rod and a return spring for driving the synchronous drive rod to rise. The top of the sampling cylinder is provided with a handle for a person to hold, and the side wall of the handle is provided with a lateral stroke hole for guiding the lifting and lowering movement of the synchronous drive rod.

[0009] The reset spring is clamped between the top of the synchronous drive rod and the sampling cylinder to push the synchronous drive rod upward.

[0010] As an improvement to the above solution, the return spring is sleeved outside the handle to define the installation position of the return spring.

[0011] As an improvement to the above solution, the top of the handle is provided with a reset hole for mounting the reset spring, and the reset hole and the reset spring limit the extension and retraction of the reset spring.

[0012] As an improvement to the above solution, the reset hole is also provided with a pressing rod for pressing by hand, the upper end of the pressing rod extending out of the reset hole for pressing by hand;

[0013] The lower end of the pressing rod abuts against the synchronous drive rod so as to be driven by the downward pressure of the pressing rod.

[0014] As an improvement to the above solution, the inner wall of the annular cutter is provided with a sealing groove for accommodating the sealing plate, so that after the sealing plate swings into the sealing groove, the exposed surface of the sealing plate does not protrude from the inner wall surface of the annular cutter.

[0015] As an improvement to the above solution, the top of the sampling tube is provided with multiple vent holes, which are connected to the sampling space.

[0016] As an improvement to the above solution, the side wall of the sampling cylinder is provided with a lifting channel for installing the lifting rod, so as to guide the lifting rod to rise and fall;

[0017] One end of the lifting channel extends through to the top of the sampling cylinder to connect with the synchronous drive rod, and the other end extends through to the closed groove.

[0018] As an improvement to the above solution, the gear shaft is installed in the sealing plate groove.

[0019] As an improvement to the above solution, the side wall of the sampling tube is provided with an observation window for observing the sampling space, and the observation window is located on the top side of the sampling space.

[0020] Implementing this utility model has the following beneficial effects:

[0021] This utility model discloses a sampler, including a sampling cylinder with a sampling space inside and a sealing mechanism for sealing the sampling space. The bottom port of the sampling cylinder is a feed inlet, and the feed inlet is equipped with a ring cutter for inserting into asphalt material. When sampling is required, the asphalt can be divided by the ring cutter. During the process of the ring cutter inserting into the asphalt, the asphalt sample can enter the sampling space. Thus, by limiting the size and shape of the sampling space, a standardized sample can be obtained, avoiding the negative factors caused by secondary heating of the sample.

[0022] The sealing mechanism includes a sealing component and a lifting drive component for controlling the opening and closing of the sealing component. The sealing component is provided on both sides inside the sampling cylinder. The sealing component includes a sealing plate for closing the feed inlet, a gear shaft mounted on the sampling cylinder, and a lifting rod for driving the gear shaft to rotate. One end of the sealing plate is connected to the gear shaft so as to swing with the rotation of the gear shaft. One end of the lifting rod is connected to the lifting drive component so as to be driven by lifting, and the other end is provided with a rack that meshes with the gear shaft. Therefore, after sampling is completed, the feed inlet can be closed by controlling the lifting of the lifting rod, which facilitates the transfer and preservation of the sample, and also facilitates the opening of the feed inlet to take out the sample.

[0023] Moreover, the meshing point between the rack and the gear shaft is located between the gear shafts on both sides. With this arrangement, during the sampling insertion process, the downward movement of the rack is in the same direction as the insertion direction, which facilitates the fact that the sealing plate is in the open state during the sampling process.

[0024] Accordingly, when the sampler needs to be lifted after sampling, the upward movement of the rack is in the same direction as the direction of asphalt extraction, which facilitates the closing of the sealing plate after sampling. Attached Figure Description

[0025] Figure 1 This is a longitudinal sectional view of the sampler of this utility model;

[0026] Figure 2 This is a schematic diagram of the cross-sectional structure of the sampler of this utility model;

[0027] Figure 3 This is a schematic diagram of the lower part of the sampler of this utility model. Detailed Implementation

[0028] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0029] See Figure 1 , 23. This utility model provides a sampler, including a sampling cylinder 1 with a sampling space a inside and a closing mechanism for closing the sampling space a. The bottom port of the sampling cylinder 1 is a feed inlet 11, and the feed inlet 11 is provided with an annular blade 2 for insertion into asphalt material.

[0030] The sealing mechanism includes a sealing component and a lifting drive component for controlling the opening and closing of the sealing component. The sealing component is provided on both sides inside the sampling cylinder 1.

[0031] The sealing assembly includes a sealing plate 3 for sealing the feed inlet 11, a gear shaft 4 mounted on the sampling cylinder 1, and a lifting rod 5 for driving the gear shaft 4 to rotate. One end of the sealing plate 3 is connected to the gear shaft 4 so as to swing in accordance with the rotation of the gear shaft 4.

[0032] One end of the lifting rod 5 is connected to the lifting drive assembly for lifting drive, and the other end is provided with a rack 51 that meshes with the gear shaft 4. The meshing point of the rack 51 and the gear shaft 4 is located between the two sides of the gear shaft 4. Preferably, the annular blade 2 is a hollow frustum shape with a pointed end to form a blade.

[0033] Specifically, to ensure that the sealing plate 3 can maintain its closed state autonomously, the lifting drive assembly includes a synchronous drive rod connected to the upper end of the lifting rod 5 and a return spring 7 for driving the synchronous drive rod 6 to rise. The top of the sampling cylinder is provided with a handle 8 for a person to grip, and the side wall of the handle 8 has a lateral stroke hole 82 for guiding the synchronous drive rod 6 to rise and fall. The return spring 7 is sandwiched between the synchronous drive rod 6 and the top of the sampling cylinder 1 to push the synchronous drive rod 6 upward. Therefore, in the initial reset state of the return spring 7, the return spring 7 pushes the synchronous drive rod 6 to raise it to a preset position. Correspondingly, the rack 51 drives the sealing plate 3 to swing to a horizontal state through the gear shaft 4 to assemble with another sealing plate 3 to form a bottom plate that closes the feed inlet 11. The sealing plate 31 is provided with a connecting lug 31 for fixed connection with the gear shaft, and the connecting lug 31 is welded to the gear shaft 4 to form an integrated structure.

[0034] Preferably, the return spring 7 can be sleeved on the outside of the handle 8 to define the installation position of the return spring 7.

[0035] More preferably, the top of the handle 8 is provided with a reset hole 81 for mounting the reset spring 7, and the reset hole 81 and the reset spring 7 limit the extension and retraction of the reset spring 7.

[0036] Furthermore, to facilitate sample removal during sample testing, the reset hole 81 is also equipped with a pressing rod 9 for manual pressing. The upper end of the pressing rod 9 extends out of the reset hole 81 for manual pressing; the lower end of the pressing rod 9 abuts against the synchronous drive rod 6 and is driven by the downward pressure of the pressing rod 9. Therefore, after actively pressing the pressing rod 9, the synchronous drive rod 6 will drive the lifting rod 5 downward to move, thereby opening the sealing plate 3. This arrangement facilitates one-handed operation by the operator; that is, while holding the handle 8 with one hand, the thumb can be used to press the pressing rod 9 to complete the sample release operation.

[0037] On the other hand, to avoid the thickness of the sealing plate 3 hindering the entry of asphalt into the sampling space a, the inner wall of the annular blade 2 is provided with a sealing groove 21 for accommodating the sealing plate 3. This ensures that after the sealing plate 3 swings into the sealing groove 21, the exposed surface of the sealing plate 3 does not protrude from the inner wall of the annular blade 2, allowing the asphalt to enter the sampling space a more smoothly during sampling. Furthermore, the top of the sampling cylinder 1 is provided with multiple vent holes 12, which communicate with the sampling space a, allowing the asphalt to fill the sampling space a more completely.

[0038] Preferably, the side wall of the sampling cylinder 1 is provided with an observation window 13 for observing the sampling space a. The observation window 13 is located on the top side of the sampling space a to facilitate observation of the filling status of asphalt in the sampling space a.

[0039] The sampling cylinder 1 has a lifting channel 14 on its side wall for mounting the lifting rod 5 to guide the lifting of the lifting rod 5; one end of the lifting channel 14 extends to the top of the sampling cylinder 1 to connect with the synchronous drive rod 6, and the other end extends to the sealing groove 21. The gear shaft 4 is installed in the sealing plate groove 21.

[0040] Preferably, the upper sidewall of the sealing groove 21 is provided with a magnet 22, and the sealing plate 3 is made of a material that can be magnetically attracted to the magnet. This arrangement can further stabilize the self-sealing state of the sealing plate 3.

[0041] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A sampler for asphalt, characterized in that, It includes a sampling tube with a sampling space inside and a sealing mechanism for sealing the sampling space. The bottom port of the sampling tube is a feed inlet, and the feed inlet is equipped with a ring cutter for inserting into the asphalt material. The sealing mechanism includes a sealing component and a lifting drive component for controlling the opening and closing of the sealing component. The sealing component is located on both sides inside the sampling cylinder. The sealing assembly includes a sealing plate for sealing the feed inlet, a gear shaft mounted on the sampling cylinder, and a lifting rod for driving the gear shaft to rotate. One end of the sealing plate is connected to the gear shaft so as to swing in accordance with the rotation of the gear shaft. One end of the lifting rod is connected to the lifting drive assembly for lifting drive, and the other end is provided with a rack that meshes with the gear shaft. The meshing point of the rack and the gear shaft is located between the two gear shafts.

2. The sampler as described in claim 1, characterized in that, The lifting drive assembly includes a synchronous drive rod connected to the lifting rod and a return spring for driving the synchronous drive rod to rise. The top of the sampling cylinder is provided with a handle for a person to hold, and the side wall of the handle is provided with a lateral stroke hole for guiding the lifting and lowering movement of the synchronous drive rod. The reset spring is clamped between the top of the synchronous drive rod and the sampling cylinder to push the synchronous drive rod upward.

3. The sampler as described in claim 2, characterized in that, The reset spring is sleeved outside the handle to define the installation position of the reset spring.

4. The sampler as described in claim 2 or 3, characterized in that, The top of the handle is provided with a reset hole for mounting the reset spring, and the reset hole and the reset spring limit the extension and retraction of the reset spring.

5. The sampler as described in claim 4, characterized in that, The reset hole is also provided with a pressing rod for pressing by hand, the upper end of the pressing rod extending out of the reset hole for pressing by hand; The lower end of the pressing rod abuts against the synchronous drive rod so as to be driven by the downward pressure of the pressing rod.

6. The sampler as described in claim 2, characterized in that, The inner wall of the annular cutter is provided with a sealing plate groove for accommodating the sealing plate, so that after the sealing plate swings into the sealing plate groove, the exposed surface of the sealing plate does not protrude from the inner wall surface of the annular cutter.

7. The sampler as described in claim 1, characterized in that, The top of the sampling tube is provided with multiple vent holes, which are connected to the sampling space.

8. The sampler as described in claim 6, characterized in that, The sampling tube has a lifting channel on its side wall for installing the lifting rod, so as to guide the lifting rod to move up and down; One end of the lifting channel extends through to the top of the sampling cylinder to connect with the synchronous drive rod, and the other end extends through to the sealing plate groove.

9. The sampler as described in claim 6, characterized in that, The gear shaft is installed in the sealing plate groove.

10. The sampler as claimed in claim 1, characterized in that, The sampling tube has an observation window on its side wall for observing the sampling space, and the observation window is located on the top side of the sampling space.

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