Asphalt mixture track plate test piece forming test mold

Abstract

The utility model discloses an asphalt mixture rut plate test piece forming test mold, and relates to the technical field of pavement rut tests. The side plate surrounds the periphery of the bottom plate, the bottom plate can move relative to the side plate, a plurality of through holes are formed in a plurality of positions of the side plate respectively, and the through holes in the same position are formed in the vertical direction; the telescopic mechanisms are provided with supporting rods, the telescopic mechanisms are arranged in the through holes respectively, and the telescopic mechanisms can stretch out of the through holes towards one side of the bottom plate to support the bottom plate; in the first position state, the supporting rods in the telescopic mechanisms in the through holes at different positions and at the same height stretch out of the through holes to support the bottom plate, and the supporting rods in the telescopic mechanisms in the through holes at different positions and higher than the height stretch out of the through holes to be shrunk in the through holes. The problem that the height of an existing rut plate cannot be adjusted, so that the measurement requirements of rut experiments of asphalt pavements with different thicknesses cannot be met can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of road rutting test, in particular to a test mold for forming an asphalt mixture rutting plate test piece. Background Art

[0002] The rutting test is an engineering test method for asphalt pavement that simulates the actual wheel load on the road surface to form rutting. Before the rutting test, a rutting plate specimen needs to be formed. The rutting plate specimen is one of the effective methods to evaluate the ability of asphalt mixture to resist plastic flow deformation under specified temperature conditions. Specifically, the rutting plate is made of asphalt mixture, and then the performance test is carried out in a rutting instrument.

[0003] The existing rutting plate is generally a rutting forming mold that includes a bottom plate and four side molds. The existing rutting forming test mold has a fixed height and can generally only perform rutting tests on one road surface thickness. In actual projects, there are many types of road surface thicknesses. The existing rutting plate cannot adjust the height and cannot meet the measurement requirements of rutting tests on asphalt pavements of different thicknesses. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the embodiment of the utility model is to provide an asphalt mixture rutting plate specimen forming test mold, which can solve the problem that the existing rutting plate cannot adjust the height and cannot meet the measurement requirements of rutting tests on asphalt pavements of different thicknesses.

[0005] The specific technical solution of the embodiment of the utility model is:

[0006] A test mold for forming a test piece of an asphalt mixture rutting plate, the test mold for forming a test piece of an asphalt mixture rutting plate comprises:

[0007] Base plate;

[0008] A side plate surrounding the bottom plate, the bottom plate can move in a vertical direction relative to the side plate, a plurality of through holes are respectively opened at a plurality of positions of the side plate, and a plurality of the through holes at the same position are arranged in a vertical direction;

[0009] A plurality of telescopic mechanisms with support rods, wherein the telescopic mechanisms are respectively arranged in the through holes, and the support rods in the telescopic mechanisms can extend out of the through holes toward one side of the bottom plate to support the bottom plate;

[0010] The asphalt mixture rutting plate specimen forming mold has a first position state. In the first position state, the telescopic mechanisms in the through holes at different positions at the same height extend out of the through holes to one side of the base plate to support the base plate, and the telescopic mechanisms in the through holes at different positions that are higher than the above height are contracted in the through holes.

[0011] Preferably, the side panels are surrounded to form a rectangular shape, and a plurality of through holes are provided on each side of the rectangle.

[0012] Preferably, rulers extending in the vertical direction are provided at multiple positions of the side plate, and the rulers are located beside the multiple through holes.

[0013] Preferably, the telescopic mechanism includes the support rod and a spring, the support rod and the spring are arranged in the through hole, the spring is sleeved outside the support rod, one end of the spring close to the bottom plate presses against the side plate or is fixed to the side plate, and the other end of the spring away from the bottom plate presses against the support rod or is fixed to the support rod.

[0014] Preferably, one end of the support rod away from the bottom plate is always located in the through hole; one end of the support rod away from the bottom plate is connected to a button key, and the button key is exposed from the through hole.

[0015] Preferably, the side plate is provided with an opening connected to the through hole; the support rod is provided with a receiving hole;

[0016] The telescopic mechanism comprises: a limiting member arranged in the receiving hole; a driving mechanism, the driving mechanism being transmission-connected with the limiting member so as to enable the limiting member to move along the extending direction of the receiving hole;

[0017] In the first position state, the limiting member moves into the opening to limit the support rod.

[0018] Preferably, the extension direction of the opening is substantially perpendicular to the extension direction of the support rod; the accommodating hole is parallel to the opening; and in the first position state, the accommodating hole and the opening are located on the same straight line.

[0019] Preferably, the inner wall of the through hole has a first step, and the outer wall of the support rod has a second step; in the first position state, the second step of the support rod abuts against the first step of the through hole, so that the support rod cannot move toward the bottom plate and the accommodating hole and the opening are located on the same straight line.

[0020] Preferably, the stopper has a helical thread or a toothed portion;

[0021] The driving mechanism includes: a first gear and a rotating member installed on the support rod, the first gear is meshed with the spiral thread or tooth portion of the limiting member, the first gear and the rotating member are transmitted through a transmission member, the axis of the first gear is perpendicular to the extension direction of the support rod, and the rotating member is located at one end of the support rod away from the base plate.

[0022] Preferably, the asphalt mixture rutting plate specimen forming mold has a second position state. In the first position state, the support rods in the telescopic mechanism in the through holes at the same height at different positions are contracted in the through holes, and the limit member is completely located in the accommodating hole.

[0023] The technical solution of the utility model has the following significant beneficial effects:

[0024] When a rutting test is required for an asphalt pavement of a preset thickness, the telescopic mechanism corresponding to the preset thickness distance from the upper end surface of the side plate is extended to the through hole on one side of the bottom plate, and the telescopic mechanism in the through hole at a height higher than the above is retracted into the through hole at different positions; then the bottom plate is placed into the side plate, so that the support rod in the telescopic mechanism corresponding to the preset thickness distance from the upper end surface of the side plate supports the bottom plate. At this time, the receiving groove formed by the bottom plate and the side plate can be used to place asphalt mixture, thereby forming a rutting plate, and then the rutting test of the asphalt pavement of the preset thickness is carried out to meet the measurement requirements. When a rutting test is required for an asphalt pavement of other preset thicknesses, the telescopic mechanism in the through hole of the original height is simply retracted back to the through hole, and then the telescopic mechanism corresponding to the other preset thickness distance from the upper end surface of the side plate is extended to the through hole on one side of the bottom plate, thereby adjusting the position of the bottom plate in the vertical direction, thereby meeting the rutting test of the asphalt pavement of the new preset thickness. The asphalt mixture rutting plate specimen forming mold in the present application can use multiple through holes arranged in the vertical direction to achieve vertical height adjustment of the bottom plate to meet the asphalt pavement rutting test of different preset thicknesses, and the entire adjustment process is simple and convenient.

[0025] With reference to the following description and drawings, specific embodiments of the present invention are disclosed in detail, indicating the manner in which the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope. Features described and / or shown for one embodiment can be used in one or more other embodiments in the same or similar manner, combined with features in other embodiments, or replace features in other embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only for illustration purposes to help understand the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the components of the present invention. Under the guidance of the present invention, those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to specific circumstances.

[0027] Figure 1 It is a schematic diagram of the external contour of the asphalt mixture rutting plate test piece forming mold in the embodiment of the utility model;

[0028] Figure 2 It is a structural schematic diagram of the side plate with through holes and the telescopic mechanism in the embodiment of the utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the driving mechanism, the support rod and the opening in the embodiment of the utility model;

[0030] Figure 4 It is a schematic diagram of the local structure of the driving mechanism and the supporting rod in the embodiment of the utility model;

[0031] Figure 5 It is a side view of the telescopic mechanism in the embodiment of the utility model.

[0032] Reference numerals of the above drawings:

[0033] 1. Bottom plate; 2. Side plate; 21. Through hole; 22. Opening hole; 3. Telescopic mechanism; 31. Support rod; 311. Accommodating hole; 32. Spring; 33. Limiting member; 34. Driving mechanism; 341. First gear; 342. Rotating member; 343. Transmission member; 35. Button key; 4. Ruler. DETAILED DESCRIPTION

[0034] In combination with the accompanying drawings and the description of the specific embodiments of the present invention, the details of the present invention can be more clearly understood. However, the specific embodiments of the present invention described herein are only used to explain the purpose of the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, technicians can conceive of any possible variations based on the present invention, which should be regarded as belonging to the scope of the present invention. It should be noted that when an element is referred to as "disposed on" another element, it can be directly on the other element or there can also be a central element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a central element at the same time. The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation method.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0036] In order to solve the problem that the existing rutting plate cannot adjust the height and cannot meet the measurement requirements of the rutting test of asphalt pavements of different thicknesses, a test mold for forming a rutting plate specimen of an asphalt mixture is proposed in this application. Figure 1 It is a schematic diagram of the external contour of the asphalt mixture rutting plate test piece forming mold in the embodiment of the utility model, Figure 2 Schematic diagram of the structure of the side plate with through holes and the telescopic mechanism in the embodiment of the utility model, as shown in FIG. Figure 1 and Figure 2 As shown, the asphalt mixture rutting plate specimen forming mold may include: a bottom plate 1; side plates 2 surrounding the bottom plate 1, and a plurality of telescopic mechanisms 3 with support rods 31.

[0037] The bottom plate 1 can move vertically relative to the side plate 2. The side plate 2 can be formed of a whole piece or multiple pieces. A receiving groove can be formed between the bottom plate 1 and the side plate 2, and the receiving groove is used to place asphalt mixture to form a rutting plate.

[0038] A plurality of through holes 21 are respectively provided at a plurality of positions of the side plate 2, and a plurality of through holes 21 at the same position are arranged in a vertical direction. A plurality of through holes 21 arranged in a vertical direction may be provided at each position. The plurality of positions may be distributed at different directions in the circumferential direction of the side plate 2, so that the telescopic mechanism 3 can support the bottom plate 1 more stably and firmly in the later stage.

[0039] A plurality of telescopic mechanisms 3 are respectively arranged in the through holes 21, and the telescopic mechanisms 3 can extend out of the through holes 21 to one side of the bottom plate 1 to support the bottom plate 1. The asphalt mixture rutting plate specimen forming test mold has a first position state, in which the telescopic mechanisms 3 in the through holes 21 at different positions at the same height extend out of the through holes 21 to one side of the bottom plate 1 to support the bottom plate 1, and the support rods 31 in the telescopic mechanisms 3 in the through holes 21 at different positions at a height higher than the above are retracted in the through holes 21.

[0040] When a rutting test is required for an asphalt pavement of a preset thickness, the telescopic mechanism 3 corresponding to the preset thickness distance from the upper end surface of the side plate 2 is extended to the through hole 21 on one side of the bottom plate 1, and the telescopic mechanism 3 in the through hole 21 at a height higher than the above is retracted in the through hole 21 at different positions; then the bottom plate 1 is placed into the side plate 2, so that the support rod 31 in the telescopic mechanism 3 corresponding to the preset thickness distance from the upper end surface of the side plate 2 supports the bottom plate 1. At this time, the receiving groove formed by the bottom plate 1 and the side plate 2 can be used to place asphalt mixture, thereby forming a rutting plate, and then the rutting test of the asphalt pavement of the preset thickness is carried out to meet the measurement requirements. When a rutting test is required for an asphalt pavement of other preset thickness, the telescopic mechanism 3 in the through hole 21 of the original height is simply retracted back to the through hole 21, and then the telescopic mechanism 3 corresponding to the other preset thickness distance from the upper end surface of the side plate 2 is extended to the through hole 21 on one side of the bottom plate 1, thereby adjusting the position of the bottom plate 1 in the vertical direction, so as to meet the rutting test of the asphalt pavement of the new preset thickness. The asphalt mixture rutting plate specimen forming mold in the present application can use multiple through holes 21 arranged in the vertical direction to achieve vertical height adjustment of the base plate 1 to meet the asphalt pavement rutting test of different preset thicknesses, and the entire adjustment process is simple and convenient.

[0041] As a feasible method, the side panels 2 can be formed into a rectangular shape, and each side of the side panels 2 is provided with a plurality of through holes 21. In the above manner, at least one telescopic mechanism 3 can extend out of the through hole 21 on each side to support the bottom panel 1, thereby ensuring the firmness and stability of the bottom panel 1.

[0042] As feasible, Figure 1As shown, a ruler 4 extending in the vertical direction is provided at multiple positions of the side plate 2, and the ruler 4 is located beside multiple through holes 21. The size of the ruler 4 can help the user know the height size of the bottom plate 1, and it is also convenient to select the through hole 21 of the appropriate height at the same position when adjusting the height of the bottom plate 1.

[0043] In order to enable the support rod 31 of the telescopic mechanism 3 to extend out of the through hole 21 and retract into the through hole 21, in a feasible implementation manner, as shown in FIG. Figure 2 As shown, the telescopic mechanism 3 may include a support rod 31 and a spring 32. The support rod 31 and the spring 32 are arranged in the through hole 21. The spring 32 is sleeved outside the support rod 31. The end of the spring 32 close to the bottom plate 1 abuts against the side plate 2 or is fixed to the side plate 2, and the other end of the spring 32 away from the bottom plate 1 abuts against the support rod 31 or is fixed to the support rod 31. When the end of the support rod 31 away from the bottom plate 1 is pressed, the spring 32 is compressed, and the end of the support rod 31 close to the bottom plate 1 extends out of the through hole 21. When the support rod 31 is not limited, the support rod 31 rebounds and contracts to the through hole 21 under the action of the spring 32.

[0044] In a feasible implementation, the end of the support rod 31 away from the bottom plate 1 is always located in the through hole 21; the end of the support rod 31 away from the bottom plate 1 is connected to a button key 35, and the button key 35 is exposed from the through hole 21. The button key 35 can facilitate the user to press the support rod 31, and can improve the aesthetics of the asphalt mixture rutting plate specimen forming mold.

[0045] In order to limit the support rod 31, the asphalt mixture rutting plate specimen forming mold is kept in the first position to prevent the spring 32 from rebounding and shrinking the support rod 31 to the through hole 21. Figure 3 Schematic diagram of the structure of the driving mechanism, the support rod 31 and the opening 22 in the embodiment of the utility model. Figure 2 and Figure 3 As shown, an opening 22 connected to the through hole 21 is provided in the side plate 2; and a receiving hole 311 is provided in the support rod 31. The telescopic mechanism 3 may include: a limit member 33 arranged in the receiving hole 311; and a driving mechanism 34, wherein the driving mechanism 34 is transmission-connected with the limit member 33 so as to enable the limit member 33 to move along the extension direction of the receiving hole 311. In the first position state, the limit member 33 moves into the opening 22 to limit the support rod 31. When it is necessary to rebound and shrink the support rod 31 to the through hole 21 under the action of the spring 32, the limit member 33 is moved along the extension direction of the receiving hole 311 by the driving mechanism 34, thereby leaving the opening 22 and returning to the receiving hole 311 of the support rod 31.

[0046] That is, the asphalt mixture rutting plate specimen forming mold can have a second position state, in which, in the first position state, the support rods 31 in the telescopic mechanism 3 in the through holes 21 at the same height at different positions are retracted in the through holes 21, and the stopper 33 is completely located in the receiving hole 311. In this second position state, the height of the bottom plate 1 can be adjusted.

[0047] Generally speaking, the extending direction of the opening 22 is substantially perpendicular to the extending direction of the support rod 31 ; the receiving hole 311 is parallel to the opening 22 ; in the first position state, the receiving hole 311 and the opening 22 are located on the same straight line.

[0048] Furthermore, a first step is provided on the inner side wall of the through hole 21, and a second step is provided on the outer side wall of the support rod 31. In the first position state, the second step of the support rod 31 abuts against the first step of the through hole 21, so that the support rod 31 cannot move toward the bottom plate 1, and the receiving hole 311 and the opening 22 are located on the same straight line. In the above manner, when the user presses the button 35, the support rod 31 cannot move further after moving to the position where the receiving hole 311 and the opening 22 are located on the same straight line, so that it is easy to control the limiter 33 to move into the opening 22.

[0049] As feasible, Figure 4 This is a schematic diagram of the local structure of the driving mechanism and the support rod in the embodiment of the utility model. Figure 5 : is a side view of the telescopic mechanism in the embodiment of the utility model, as shown in FIG. Figure 4 and Figure 5 As shown, the stopper 33 has a spiral thread or a tooth portion. Correspondingly, the driving mechanism 34 includes: a first gear 341 and a rotating member 342 mounted on the support rod 31, the first gear 341 meshes with the spiral thread or the tooth portion of the stopper 33, the first gear 341 and the rotating member 342 are transmitted through the transmission member 343, the axis of the first gear 341 is perpendicular to the extension direction of the support rod 31, and the rotating member 342 is located at the end of the support rod 31 away from the bottom plate 1. The transmission member 343 can be a chain or a transmission belt and other components. The rotating member 342 is used for the user to turn it to rotate, so that the rotating member 342 drives the transmission member 343 to rotate the first gear 341, and the first gear 341 rotates in different directions to control the stopper 33 to move in different directions, that is, to extend into the opening 22 or move out of the opening 22. The rotating member 342 can be a second gear, and the corresponding transmission member 343 can be a chain, and the chain cooperates with the first gear 341 and the second gear respectively. The rotating member 342 may also be a circular side wall having a structure that cooperates with the transmission belt, so that the rotating member 342 can drive the transmission belt to move. The transmission belt can also cooperate with the first gear 341 with this structure. The structure can be located on the side wall of other positions of the first gear 341 where there are no teeth.

[0050] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for various purposes. The term "consisting essentially of ... " describing a combination should include determined elements, ingredients, parts or steps and other elements, ingredients, parts or steps that do not substantially affect the basic novel features of the combination. The use of the terms "comprising" or "including" to describe the combination of elements, ingredients, parts or steps here also contemplates the implementation method consisting essentially of these elements, ingredients, parts or steps. Here, by using the term "may", it is intended to illustrate that any attribute described that "may" includes is optional. Multiple elements, ingredients, parts or steps can be provided by a single integrated element, ingredient, part or step. Alternatively, a single integrated element, ingredient, part or step can be divided into separate multiple elements, ingredients, parts or steps. The disclosure "one" or "one" used to describe an element, ingredient, part or step is not said to exclude other elements, ingredients, parts or steps.

[0051] The above are only a few embodiments of the present invention. Although the embodiments disclosed by the present invention are as above, the contents are only embodiments adopted for facilitating the understanding of the present invention and are not used to limit the present invention. Any technician in the technical field to which the present invention belongs can make any modification and change in the form and details of the implementation without departing from the spirit and scope disclosed by the present invention, but the scope of patent protection of the present invention shall still be subject to the scope defined by the attached claims.

Claims

1. A test mold for forming asphalt mixture rutting plate specimens, It is characterized in that The asphalt mixture rutting plate specimen forming test mold comprises: Base plate; A side plate surrounding the bottom plate, the bottom plate can move in a vertical direction relative to the side plate, a plurality of through holes are respectively opened at a plurality of positions of the side plate, and a plurality of the through holes at the same position are arranged in a vertical direction; A plurality of telescopic mechanisms with support rods, wherein the telescopic mechanisms are respectively arranged in the through holes, and the support rods in the telescopic mechanisms can extend out of the through holes toward one side of the bottom plate to support the bottom plate; The asphalt mixture rutting plate specimen forming mold has a first position state. In the first position state, the telescopic mechanisms in the through holes at different positions at the same height extend out of the through holes to one side of the base plate to support the base plate, and the telescopic mechanisms in the through holes at different positions that are higher than the above height are contracted in the through holes.

2. The asphalt mixture rutting plate specimen forming test mold according to claim 1, It is characterized in that The side panels are surrounded to form a rectangular shape, and a plurality of through holes are arranged on each side of the rectangle.

3. The asphalt mixture rutting plate specimen forming test mold according to claim 1, It is characterized in that A scale extending in a vertical direction is arranged at a plurality of positions of the side plate, and the scale is located beside a plurality of the through holes.

4. The asphalt mixture rutting plate specimen forming test mold according to claim 1, It is characterized in that The telescopic mechanism includes the support rod and a spring. The support rod and the spring are arranged in the through hole. The spring is sleeved outside the support rod. One end of the spring close to the bottom plate abuts against the side plate or is fixed to the side plate, and the other end of the spring away from the bottom plate abuts against the support rod or is fixed to the support rod.

5. The asphalt mixture rutting plate specimen forming test mold according to claim 4, It is characterized in that One end of the support rod away from the bottom plate is always located in the through hole; one end of the support rod away from the bottom plate is connected to a button key, and the button key is exposed from the through hole.

6. The asphalt mixture rutting plate specimen forming test mold according to claim 5, It is characterized in that The side plate is provided with an opening connected to the through hole; the support rod is provided with a receiving hole; The telescopic mechanism comprises: a limiting member arranged in the receiving hole; a driving mechanism, the driving mechanism being transmission-connected with the limiting member so as to enable the limiting member to move along the extending direction of the receiving hole; In the first position state, the limiting member moves into the opening to limit the support rod.

7. The asphalt mixture rutting plate specimen forming mold according to claim 6, It is characterized in that The extension direction of the opening is substantially perpendicular to the extension direction of the support rod; the accommodating hole is parallel to the opening; in the first position state, the accommodating hole and the opening are located on the same straight line.

8. The asphalt mixture rutting plate specimen forming test mold according to claim 6, It is characterized in that The inner wall of the through hole has a first step, and the outer wall of the support rod has a second step; in the first position state, the second step of the support rod abuts against the first step of the through hole, so that the support rod cannot move toward the bottom plate and the accommodating hole and the opening are located on the same straight line.

9. The asphalt mixture rutting plate specimen forming test mold according to claim 6, It is characterized in that The stopper has a spiral thread or a toothed portion; The driving mechanism includes: a first gear and a rotating member installed on the support rod, the first gear is meshed with the spiral thread or tooth portion of the limiting member, the first gear and the rotating member are transmitted through a transmission member, the axis of the first gear is perpendicular to the extension direction of the support rod, and the rotating member is located at one end of the support rod away from the base plate.

10. The asphalt mixture rutting plate specimen forming test mold according to claim 6, It is characterized in that The asphalt mixture rutting plate specimen forming test mold has a second position state. In the first position state, the support rods in the telescopic mechanism in the through holes at the same height at different positions are retracted in the through holes, and the limit member is completely located in the accommodating hole.

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