Asphalt ductility detection device

Abstract

The utility model relates to the technical field of detection, and discloses an asphalt ductility detection device which comprises a placing groove, splayed dies are arranged on the inner wall of the placing groove, a fixing block is attached between every two adjacent splayed dies, an extrusion block is attached to the outer wall of each splayed die, one end of each extrusion block is fixedly connected with a first connecting piece, and the other end of each extrusion block is fixedly connected with a second connecting piece. An extrusion rod is rotationally connected to the middle of the first connecting piece, a movable hole is formed in the outer wall of the containing groove, the outer wall of the extrusion rod is rotationally connected with the inner wall of the movable hole, a second connecting piece is fixedly connected to the other end of the extrusion rod, and a connecting rod is rotationally connected to the middle of the second connecting piece; one end of the connecting rod on the left side is fixedly connected with a lead screw. According to the utility model, through the opposite movement of the two extrusion blocks, each part of the mold is fixed to form a stable integral structure, so that the influence of external force can be effectively resisted, the mold is prevented from being deformed, and asphalt is prevented from leaking from a gap of the mold in the pouring process.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection technical field especially relates to a bitumen ductility detection device. BACKGROUND

[0002] Bitumen is a kind of brown black organic cementation material, and petroleum pitch is the residue after distillation of crude oil, which is solid at room temperature and has certain hardness and viscosity, and is insoluble in water but soluble in organic solvents, and in road engineering, it is the key material for road laying, and can improve the strength, stability and durability of road after mixing with aggregate, and bears vehicle load, and bitumen ductility is an important index for measuring the ductility of bitumen under tensile force, and the treated bitumen sample is placed in the environment of specified temperature, and is stretched at fixed speed until the sample is broken, and the length measured at this time is bitumen ductility, and the greater the ductility value, the better the flexibility of bitumen, and the stronger the resistance to cracking in low temperature environment.

[0003] Through the search, the patent announcement number CN214622115U discloses a bitumen ductility detection device, which comprises a connecting piece for fixing the fixed block on the bottom plate, a connecting hole is arranged on the surface of the fixed block close to the side wall of the placing groove, and an annular clamping groove is arranged on the inner wall of the connecting hole;The connecting piece includes a connecting pipe, a connecting cap, a push rod, a sliding block and a plug, one end of the connecting pipe penetrates the bottom plate and is located in the inner ring of the connecting hole;The connecting cap is arranged on the end of the connecting pipe away from the fixed block, and the connecting cap is close to the end of the bottom plate;One end of the push rod is located in the connecting pipe, and the other end penetrates out of the connecting cap and is horizontally connected with the connecting cap;The sliding block is arranged on the end of the push rod in the connecting pipe, and the cross-sectional area of the sliding block close to the end of the push rod is greater than that of the end away from the end;One end of the plug is located in the connecting pipe and abuts against the circumferential surface of the sliding block, and the other end is slidably arranged in the annular clamping groove, and the application has the effect of facilitating the assembly and disassembly of the fixed block on the bottom plate, but the above structure only fixes the fixed block, and does not fix each part of the mold, which will cause the leakage of bitumen from the gap of the mold during pouring. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides a bitumen ductility detection device, which aims at improving the problem that each part of the mold is not fixed in the prior art, which will cause the leakage of bitumen from the gap of the mold during pouring.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: a bitumen ductility detection device, including the placement groove, the inner wall of placement groove is provided with the splayed mould, the adjacent between two splayed moulds is pasted with fixed block, the outer wall of splayed mould is pasted with extrusion block, one end of extrusion block is fixedly connected with connecting piece no.

[0006] Through the above technical scheme: the placement groove is as the basic bearing part of the whole device, and provides stable platform for subsequent detection operation, the splayed mould is the key mould of preparing bitumen test piece, and the unique 8-shaped structure is according to bitumen ductility detection standard and practical experience, the adjacent between two splayed moulds is pasted with fixed block, the fixed block ensures that the relative position of two splayed moulds is fixed in the whole test process, prevents the displacement of splayed mould when pouring bitumen, thereby guaranteeing the shape and size precision of bitumen test piece, the extrusion block is in close contact with splayed mould, and stable external pressure is applied to splayed mould, one end of extrusion block is fixedly connected with connecting piece no.

[0007] Further describe the above technical scheme as follows:

[0008] The cover mechanism includes a sliding cover, the inner wall of the sliding cover is slidably connected with the outer wall of the placement groove, a material injection opening is formed in the top left side of the sliding cover, a ventilation hole is formed in the top right side of the sliding cover, a male buckle is fixedly connected to the top left edge of the sliding cover, and a female buckle is fixedly connected to the top right edge of the sliding cover.

[0009] Through the technical scheme, the inner wall of the sliding cover and the outer wall of the placing groove are matched in a sliding connection mode, so that the sliding cover can smoothly move on the placing groove, and the close fit state between the two is ensured. The top left side of the sliding cover is provided with a pouring opening, which provides a passage for the eight-shaped mold filled with the asphalt poured into the placing groove. The asphalt after being heated and uniformly stirred can be accurately and uniformly poured into the mold through the pouring opening. The top right side of the sliding cover is provided with a ventilation hole. During the pouring of the asphalt into the eight-shaped mold, the air needs to have a discharge passage. The ventilation hole can smoothly discharge the air in the mold, avoid the air forming bubbles in the asphalt, and thus ensure the uniformity of the internal structure of the asphalt test piece. Meanwhile, the existence of the ventilation hole is also helpful to adjust the pressure in the mold during the cooling and molding of the asphalt, so as to prevent adverse effects on the molding of the test piece caused by the change of the pressure. The male buckle and the female buckle are matched with each other. When the sliding cover completely covers the placing groove, the male buckle and the female buckle can be tightly buckled together to form a stable closed structure, so as to ensure that the sliding cover will not be accidentally opened during the test, and the stability of the test environment is ensured, and the safety and accuracy of the asphalt test piece during the molding process are further ensured.

[0010] As a further description of the above technical scheme:

[0011] The top of the fixing block is fixedly connected with a nameplate, and the top of the eight-shaped mold is provided with a through hole.

[0012] Through the above technical scheme: the nameplate is engraved with the basic information of the device, which provides key guidance for users when operating and maintaining the asphalt ductility detection device. The through hole is convenient for fixing the asphalt test piece during subsequent testing.

[0013] As a further description of the above technical scheme:

[0014] The bottom of the sliding cover is provided with a notch, and the outer wall of the placing groove is fixedly connected with a positioning block in the middle.

[0015] Through the above technical scheme: the notch and the positioning block on the placing groove are matched with each other, so as to ensure that the sliding cover can be accurately positioned when closed, and remain stable during the test, avoiding displacement of the sliding cover caused by external force.

[0016] As a further description of the above technical scheme:

[0017] The side wall of the left sliding cover is provided with a groove, and the side wall of the right sliding cover is fixedly connected with a recess.

[0018] Through the above technical scheme: the groove on the side wall of the left sliding cover and the recess on the side wall of the right sliding cover are a set of matched structures. During the closing process of the sliding cover, the recess gradually embeds into the groove, preventing the sliding cover from being separated from the two sides due to external factors, and further improving the sealing performance of the entire sealing cover mechanism.

[0019] As a further description of the above technical solutions:

[0020] The side wall of the placing groove is fixedly connected with a sliding rail, and the outer wall of the sliding rail is in sliding connection with the inner wall of the sliding cover.

[0021] Through the above technical solutions: the side wall of the placing groove is fixedly connected with a sliding rail, and the outer wall of the sliding rail is in sliding connection with the inner wall of the sliding cover, so that the sliding cover can smoothly slide on the surface thereof, and the stability of the sliding cover during movement is ensured, and left-right shaking and up-down jumping do not occur.

[0022] As a further description of the above technical solutions:

[0023] The side wall of the placing groove is fixedly connected with a limiting block at both ends, and the outer wall of the sliding cover is fixedly connected with a push handle.

[0024] Through the above technical solutions: the limiting block is used for limiting the sliding range of the sliding cover, and the limiting block can effectively prevent the sliding cover from being separated from the sliding rail due to excessive movement during sliding, and through the push handle, appropriate pushing force and pulling force can be easily applied to the sliding cover to realize the sliding of the sliding cover on the sliding rail, and the convenience of operation is greatly improved.

[0025] As a further description of the above technical solutions:

[0026] One end of the left connecting rod is fixedly connected with a transition block, and the transition block is in rotary connection with a sleeve.

[0027] Through the above technical solutions: one end of the left connecting rod is fixedly connected with a transition block, the transition block is fixedly connected with the connecting rod, and the transition block is in rotary connection with the sleeve, so as to ensure the stability and reliability of the entire device during operation.

[0028] The utility model has the advantages of:

[0029] 1. In the utility model, the length of the two connecting rods is controlled through the screw rod and the sleeve, the extrusion rod is pushed, the pressure is transmitted to the extrusion block, the two extrusion blocks move towards each other, the fixed block is fixed, the parts of the mold are fixed, a stable overall structure is formed, the influence of external force can be effectively resisted, the deformation of the mold is prevented, and the leakage of asphalt from the gap of the mold during pouring is prevented.

[0030] 2. In the utility model, the sliding cover is positioned and combined to seal the top, the melted asphalt is poured from the pouring port until it is extruded from the ventilation hole, and pouring is stopped to prevent burns caused by contact of spilled asphalt, reduce the heat dissipation speed of the asphalt, and help maintain the temperature stability of the asphalt during pouring and molding, further improve the molding quality of the test piece and the accuracy of the test results. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 A front side perspective view of the asphalt ductility detection device is provided in the utility model;

[0032] Figure 2 A partial structure view of the splay die of the asphalt ductility detection device is provided in the utility model;

[0033] Figure 3 A partial structure view of the sleeve of the asphalt ductility detection device is provided in the utility model;

[0034] Figure 4 A partial structure display view of the sliding cover of the asphalt ductility detection device is provided in the utility model;

[0035] Figure 5 A partial structure schematic view of the limiting block of the asphalt ductility detection device is provided in the utility model.

[0036] Legend:

[0037] 1, placing groove; 2, capping mechanism; 201, sliding cover; 202, material injection port; 203, air hole; 204, male buckle; 205, female buckle; 3, splay die; 4, fixed block; 5, extrusion block; 6, connecting piece one; 7, screw rod; 8, sleeve; 9, extrusion rod; 10, connecting piece two; 11, connecting rod; 12, movable hole; 13, sliding rail; 14, through hole; 15, nameplate; 16, push handle; 17, limiting block; 18, transition block; 19, recess; 20, recess block; 21, positioning block; 22, notch. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0039] Please refer to the drawings in the embodiments of the utility model Figure 1 - the drawings in the embodiments of the utility model Figure 3The utility model provides an embodiment: an asphalt ductility detection device, the inner wall of placing groove 1 is provided with splayed die 3, the adjacent between two splayed die 3 is pasted with fixed block 4, the outer wall of splayed die 3 is pasted with extrusion block 5, one end of extrusion block 5 is fixedly connected with connecting piece no. 6, the middle part rotationally connected with extrusion rod 9 of connecting piece no. 6, the outer wall of extrusion rod 9 is rotationally connected with the inner wall of movable hole 12, the other end of extrusion rod 9 is fixedly connected with connecting piece no. 10, the middle part rotationally connected with connecting rod 11 of connecting piece no. 10, one end of left connecting rod 11 is fixedly connected with screw rod 7, one end of right connecting rod 11 is rotationally connected with sleeve 8, the top of placing groove 1 is provided with cover mechanism 2, and cover mechanism 2 is used for covering the mould top;

[0040] Specifically, placing groove 1 is the basic bearing part of the whole device, which provides a stable platform for subsequent detection operation, splayed die 3 is the key mould for preparing asphalt test piece, fixed block 4 is pasted between the adjacent of two splayed die 3, fixed block 4 ensures that the relative position of two splayed die 3 is fixed during the whole test process, prevents displacement of splayed die 3 when pouring asphalt, so as to ensure the shape and size precision of asphalt test piece, extrusion block 5 is in close contact with splayed die 3, and stable external pressure is applied to splayed die 3, one end of extrusion block 5 is fixedly connected with connecting piece no. 6, the middle part rotationally connected with extrusion rod 9 of connecting piece no. 6, so that the direction and size of force can be flexibly changed during the movement of extrusion rod 9, and then pressure is applied to splayed die 3 through extrusion block 5, the outer wall of extrusion rod 9 is rotationally connected with the inner wall of movable hole 12, which ensures the stability and smoothness of extrusion rod 9 during movement, and also limits the activity range of extrusion rod 9, ensures that it moves according to the predetermined trajectory, one end of left connecting rod 11 is fixedly connected with screw rod 7, one end of right connecting rod 11 is rotationally connected with sleeve 8, sleeve 8 cooperates with screw rod 7, and pressure is applied to extrusion rod 9, so that pressure is transmitted to extrusion block 5

[0041] Please refer to the attached Figure 4 The utility model discloses a cover mechanism 2, which comprises a sliding cover 201, and the inner wall of the sliding cover 201 is slidably connected with the outer wall of the placing groove 1 Figure 5 The top left side of the sliding cover 201 is provided with a pouring port 202, the top right side of the sliding cover 201 is provided with a ventilation hole 203, the top edge of the left sliding cover 201 is fixedly connected with a male buckle 204, and the top edge of the right sliding cover 201 is fixedly connected with a female buckle 205

[0042] Specific, the inner wall of the sliding cover 201 and the outer wall of the placement groove 1 are matched in a sliding connection mode, which ensures that the sliding cover 201 can smoothly move on the placement groove 1 and also ensures the close fitting state between the two, the top left side of the sliding cover 201 is provided with a pouring port 202, the pouring port 202 provides a passage for the eight-shaped die 3 into which the asphalt poured into the placement groove 1, the asphalt heated and uniformly stirred can be accurately and uniformly poured into the mold through the pouring port 202, the top right side of the sliding cover 201 is provided with a ventilation hole 203, the ventilation hole 203 provides a passage for air to be discharged during the process of pouring asphalt into the eight-shaped die 3, the ventilation hole 203 can smoothly discharge the air in the mold, avoiding the formation of air bubbles in the asphalt, thereby ensuring the uniformity of the internal structure of the asphalt test piece, at the same time, the existence of the ventilation hole 203 is also helpful to adjust the pressure inside the mold during the process of cooling and forming the asphalt, preventing adverse effects on the test piece forming due to pressure changes, the male buckle 204 and the female buckle 205 cooperate with each other, when the sliding cover 201 completely covers the placement groove 1, the male buckle 204 and the female buckle 205 can be tightly buckled together to form a stable closed structure, which can ensure that the sliding cover 201 will not be accidentally opened during the test process, ensuring the stability of the test environment and further ensuring the safety and accuracy of the asphalt test piece during the forming process.

[0043] Please refer to the attached drawings Figure 1 - the attached drawings Figure 3 The top of the fixed block 4 is fixedly connected with a nameplate 15, the top of the eight-shaped die 3 is provided with a through hole 14, the bottom of the sliding cover 201 is provided with a notch 22, the outer wall of the placement groove 1 is fixedly connected with a positioning block 21 in the middle, the side wall of the left sliding cover 201 is provided with a groove 19, and the side wall of the right sliding cover 201 is fixedly connected with a recess 20.

[0044] Specifically, the nameplate 15 is engraved with the basic information of the device, which provides key guidance for users when operating and maintaining the asphalt ductility detection device, the through hole 14 is convenient for fixing the asphalt test piece during subsequent testing, the notch 22 cooperates with the positioning block 21 on the placement groove 1 to ensure that the sliding cover 201 can be accurately positioned when closed and remain stable during the test process, avoiding displacement of the sliding cover 201 due to external force, the groove 19 on the side wall of the left sliding cover 201 and the recess 20 on the side wall of the right sliding cover 201 are a set of cooperating structures, during the closing process of the sliding cover 201, the recess 20 gradually embeds into the groove 19 to prevent the sliding cover 201 from separating from the two sides due to external factors, and further improve the sealing performance of the entire cover mechanism 2.

[0045] Please refer to the attached drawings Figure 3 - the attached drawings Figure 5The side wall of the placing groove 1 is fixedly connected with a sliding rail 13, the outer wall of the sliding rail 13 is slidably connected with the inner wall of the sliding cover 201, the side wall of the placing groove 1 is fixedly connected with a limiting block 17 at both ends, the outer wall of the sliding cover 201 is fixedly connected with a push hand 16, one end of the left connecting rod 11 is fixedly connected with a transition block 18, the transition block 18 is rotationally connected with the sleeve 8;

[0046] Specifically, the limiting block 17 is used for limiting the sliding range of the sliding cover 201, and the limiting block 17 can effectively prevent the sliding cover 201 from being separated from the sliding rail 13 due to excessive movement in the sliding process, and through the push hand 16, appropriate pushing force and pulling force can be easily applied to the sliding cover 201 to realize the sliding of the sliding cover 201 on the sliding rail 13, greatly improving the convenience of operation, one end of the left connecting rod 11 is fixedly connected with a transition block 18, the transition block 18 is fixedly connected with the connecting rod 11, and the transition block 18 is rotationally connected with the sleeve 8, ensuring the stability and reliability of the entire device during operation.

[0047] Working principle: When pouring is used to detect the asphalt ductility test piece, the fixed block 4 needs to be fixed in the placing groove 1, the shapes of the two ends of the fixed block 4 are matched with the shapes of the two ends of the eight-shaped die 3, when the two eight-shaped dies 3 are extruded towards each other, the fixed block 4 is fixed, one end of the extrusion block 5 is matched with the shape of the outer wall of the eight-shaped die 3, the extrusion rod 9 passes through the movable hole 12 and is rotationally connected with the movable hole 12, the other end of the extrusion rod 9 is rotationally connected with the connecting rod 11, the two connecting rods 11 are connected with the sleeve 8 through the lead screw 7, when the sleeve 8 is rotated, the two connecting rods 11 are elongated towards both ends, pushing one end of the extrusion rod 9, the other end of the extrusion rod 9 pushes the extrusion block 5, i.e. pushes the eight-shaped die 3, the two extrusion blocks 5 are symmetrically arranged, the two extrusion blocks 5 are extruded towards each other, the fixed block 4 is fixed, the parts of the mold are fixed, forming a stable overall structure, which can effectively resist the influence of external force, prevent the mold from deforming, and prevent the asphalt from leaking from the gap of the mold during pouring;

[0048] Before pouring the test piece, the sliding cover 201 is slid to the upper side of the eight-shaped die 3, the concave block 20 is inserted into the groove 19, at this time the positioning block 21 is matched with the notch 22, the male buckle 204 is buckled with the female buckle 205, the positioning combination of the two sliding covers 201 is realized, then the melted asphalt is poured from the pouring port 202 until it is extruded from the air vent 203, the pouring is stopped, and after cooling, the two sliding covers 201 are slid apart to the two ends, and the formed test piece can be taken out, which can prevent the asphalt from spilling out and causing burns, reduce the contact area of the asphalt with the external environment, reduce the heat dissipation speed of the asphalt, and is conducive to maintaining the temperature stability of the asphalt during pouring and molding, further improving the molding quality of the test piece and the accuracy of the test results.

[0049] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A device for detecting the ductility of bitumen comprising a depositing tank (1), characterized in that: The inner wall of the placing groove (1) is provided with a splayed die (3), the adjacent two splayed dies (3) are attached with a fixed block (4), the outer wall of the splayed die (3) is attached with an extrusion block (5), one end of the extrusion block (5) is fixedly connected with a connecting piece one (6), the middle part of the connecting piece one (6) is rotatably connected with an extrusion rod (9), the outer wall of the extrusion rod (9) is rotatably connected with the inner wall of the movable hole (12), the other end of the extrusion rod (9) is fixedly connected with a connecting piece two (10), the middle part of the connecting piece two (10) is rotatably connected with a connecting rod (11), one end of the left connecting rod (11) is fixedly connected with a lead screw (7), one end of the right connecting rod (11) is rotatably connected with a sleeve (8), the top of the placing groove (1) is provided with a cover mechanism (2), and the cover mechanism (2) is used for covering the mold.

2. The asphalt ductility testing device of claim 1, wherein: The cover mechanism (2) comprises a sliding cover (201), the inner wall of the sliding cover (201) is slidably connected with the outer wall of the placing groove (1), the top left side of the sliding cover (201) is provided with a feeding opening (202), the top right side of the sliding cover (201) is provided with a ventilation hole (203), the top edge of the left sliding cover (201) is fixedly connected with a male buckle (204), and the top edge of the right sliding cover (201) is fixedly connected with a female buckle (205).

3. The asphalt ductility testing device of claim 1, wherein: The top of the fixed block (4) is fixedly connected with a nameplate (15), and the top of the splayed die (3) is provided with a through hole (14).

4. The asphalt ductility testing device of claim 2, wherein: The bottom of the sliding cover (201) is provided with a notch (22), and the middle part of the outer wall of the placing groove (1) is fixedly connected with a positioning block (21).

5. The asphalt ductility testing device of claim 2, wherein: The side wall of the left sliding cover (201) is provided with a groove (19), and the side wall of the right sliding cover (201) is fixedly connected with a recessed block (20).

6. The asphalt ductility testing device of claim 1, wherein: The side wall of the placing groove (1) is fixedly connected with a sliding rail (13), and the outer wall of the sliding rail (13) is slidably connected with the inner wall of the sliding cover (201).

7. The asphalt ductility testing device of claim 2, wherein: The side wall of the placing groove (1) is fixedly connected with a limiting block (17), and the outer wall of the sliding cover (201) is fixedly connected with a push handle (16).

8. The asphalt ductility testing device of claim 1, wherein: One end of the left connecting rod (11) is fixedly connected with a transition block (18), and the transition block (18) is rotatably connected with the sleeve (8).

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