Asphalt mixture compactness detector

Abstract

The utility model relates to an asphalt mixture compactness detector, and relates to the field of asphalt mixture compactness detection. The nuclear-free densimeter comprises a nuclear-free densimeter body, a disc-shaped mounting shell is fixed to the lower side of the nuclear-free densimeter body, the lower side of the mounting shell is open, an induction plate is mounted on the inner side of the mounting shell, and a left semicircular protective cover and a right semicircular protective cover are arranged on the lower side of the mounting shell; the opposite sides of the protective covers on the left side and the right side are rotationally connected with the mounting shell, and the protective covers can be rotated to the upper side position to be clamped and fixed. The induction plate is surrounded and protected through the mounting shell, the lower end opening of the mounting shell is closed through the two protective covers so that the induction plate can be better protected, the protective covers are rotationally mounted on the mounting shell and do not need to be separated from the mounting shell after being opened, and therefore the situation that the protective covers are forgotten and lost can be effectively avoided; and the protective cover which is rotatably opened and closed is more convenient and faster to use and operate.

Description

Technical Field

[0001] This application relates to the field of asphalt mixture compaction testing technology, and in particular to an asphalt mixture compaction testing instrument. Background Technology

[0002] Asphalt mixture is one of the important materials for road paving, and its compaction degree directly affects the load-bearing capacity and service life of the road. Therefore, the detection of the compaction degree of asphalt mixture is particularly important, and the detection of the compaction degree of asphalt mixture is generally carried out by using a testing instrument.

[0003] Chinese Patent No. CN221029468U discloses an asphalt mixture compaction tester. The coreless density meter body includes a coreless density meter body, a pull ring hinged to the coreless density meter body, a sensing plate installed at the bottom of the coreless density meter, arc-shaped protrusions symmetrically fixed on both sides of the sensing plate, a shell fixed to one side of the sensing plate, a locking component movably installed in the inner cavity of the shell and extending out of the shell, a protective cover sleeved on the sensing plate, a drying component installed on the inner bottom wall of the protective cover, and a support fixed on the outer surface of the protective cover. The coreless density meter body is used to detect the compaction degree of asphalt through the sensing plate. The pull ring is used to facilitate the lifting of the coreless density meter by the tester. The sensing plate is used to sense the asphalt mixture. The shell is used to install the locking component. This asphalt mixture compaction tester has the advantages of protecting the sensing plate and ensuring that the sensing plate is dry.

[0004] The aforementioned asphalt mixture compaction tester provides protection to the sensor plate by installing a protective cover on the outside of the sensor plate, thus preventing the sensor plate from being damaged by external impacts. However, the protective cover is easily forgotten or lost after being removed, which affects the protection of the sensor plate. Utility Model Content

[0005] To address the issue that the protective cover of the asphalt mixture compaction tester is easily forgotten or lost after disassembly, this application provides an asphalt mixture compaction tester.

[0006] The asphalt mixture compaction tester provided in this application adopts the following technical solution:

[0007] An asphalt mixture compaction tester includes a coreless density meter body. A disc-shaped mounting shell is fixed to the lower side of the coreless density meter body. The mounting shell has an opening on its lower side, and a sensing plate is installed inside the mounting shell. Two semi-circular protective covers are provided on the lower side of the mounting shell. The opposite sides of the left and right protective covers are rotatably connected to the mounting shell, and the protective covers can be rotated to the upper position for locking and fixing. The edges of the joints of the left and right protective covers are engaged with the mounting shell near both ends.

[0008] By adopting the above technical solution, the sensor plate is surrounded and protected by the mounting shell, and the lower port of the mounting shell is sealed by two protective covers, thus better protecting the sensor plate. The protective covers are rotatably mounted on the mounting shell and do not need to be removed from the mounting shell after opening, which can effectively prevent the protective covers from being forgotten or lost. Moreover, the operation of rotating the protective covers to open and close is more convenient and quick.

[0009] Optionally, the upper side of the nucleus-free density meter body is covered with a cover, which is locked in place with the nucleus-free density meter body, and a handle is rotatably mounted on the upper surface of the housing.

[0010] By adopting the above technical solution, the cover can seal and protect the display screen and control keys on the upper surface of the nucleus-free density meter, thus preventing dust accumulation.

[0011] Optionally, U-shaped rotating brackets are fixed on both the left and right sides of the mounting housing, and protruding retaining ribs are fixed on the inner side wall of the rotating brackets.

[0012] By adopting the above technical solution, the protective cover is rotated and installed by the rotating bracket, and the protective cover is locked and limited when it is rotated to the upper side by the clamping rib.

[0013] Optionally, the front and rear sides of the housing are fixed with clips, and the sides of the clips have two slots.

[0014] By adopting the above technical solution, the outer casing is secured to the protective cover by a locking mechanism using clips and slots.

[0015] Optionally, both ends of the protective cover are fixed with upwardly bent buckles, and the side of the buckle facing the outer casing is fixed with a buckle plate that is snapped into a buckle groove.

[0016] By adopting the above technical solution, the protective cover uses a buckle plate and a buckle platform to lock together with the locking block.

[0017] Optionally, a connecting plate is fixed to the side of the protective cover away from the center of the mounting shell, and an upwardly bent rotating plate is fixed to one end of the connecting plate. A rotating shaft is fixed to the upper end of the rotating plate, and slots are provided on both sides of the rotating plate.

[0018] By adopting the above technical solution, the protective cover is rotatably connected to the rotating bracket using a rotating plate and a rotating shaft, and the protective cover is locked and limited when rotated to the upper side by the cooperation of the slot and the locking rib on the rotating plate.

[0019] Optionally, downward-bent clamping plates are fixed on both the left and right sides of the cover, a clamping platform is fixed on the inner side of the clamping plate, and an inclined pinching plate is fixed at the lower end of the clamping plate.

[0020] By adopting the above technical solution, the cover is clamped to the main body of the nucleus-free density meter using a clamping plate and clamping platform.

[0021] Optionally, the lower surface of the protective cover is fixed with feet near the front and rear sides. The feet include studs fixed to the protective cover. The lower end of the stud is threaded with a support block. The lower end of the support block is tapered, and the outer side of the support block is provided with anti-slip grooves arranged in a circumferential pattern.

[0022] By adopting the above technical solution, the protective cover is grounded and supported by studs and support blocks. This provides suspended support when placing the testing device, preventing the protective cover from being deformed by collision and preventing ground stains from contaminating the testing device, thereby further protecting the testing device.

[0023] In summary, this application includes the following beneficial technical effects:

[0024] 1. The sensor board is surrounded and protected by an outer casing, and the lower port of the casing is sealed by two protective covers, which better protects the sensor board. The protective covers are rotatably mounted on the casing and do not need to be removed from the casing after opening, which effectively prevents the protective covers from being forgotten or lost. The rotatable protective covers make operation more convenient and quick.

[0025] 2. The protective cover is grounded and supported by studs and support blocks. This provides suspension support when placing the testing device to prevent the protective cover from being deformed by collision and to prevent ground stains from contaminating the testing device, thereby further protecting the testing device. Attached Figure Description

[0026] Figure 1 This is a perspective view of an embodiment of this application;

[0027] Figure 2 This is a schematic diagram of the mounting housing in an embodiment of this application;

[0028] Figure 3 This is a schematic diagram of the protective cover in an embodiment of this application;

[0029] Figure 4 This is a schematic diagram of the cover in an embodiment of this application;

[0030] Figure 5 This is a schematic diagram of the support legs in the embodiments of this application.

[0031] Explanation of reference numerals in the attached diagram: 1. Cover; 11. Clamping plate; 12. Pinch plate; 13. Clamping platform; 2. Main body of the nucleus-free density meter; 3. Mounting shell; 31. Clamping block; 32. Snap groove; 33. Rotating bracket; 34. Clamping rib; 4. Protective cover; 41. Snap plate; 42. Connecting plate; 43. Rotating shaft; 44. Rotating plate; 45. Snaping platform; 46. Clamping groove; 5. Support leg; 51. Support block; 52. Anti-slip groove; 53. Stud; 6. Handle; 65. Locking screw; 7. Induction plate. Detailed Implementation

[0032] The present application will be further described in detail below with reference to the accompanying drawings.

[0033] Example 1,

[0034] This application discloses an asphalt mixture compaction tester. (Refer to...) Figure 1 and Figure 2 The device includes a nucleus-free density meter body 2, with a disc-shaped mounting shell 3 fixed to the lower side of the body 2. The mounting shell 3 has an opening at the bottom, and a sensor plate 7 is mounted inside the mounting shell 3. Two semi-circular protective covers 4 are provided on the lower side of the mounting shell 3. The opposite sides of the left and right protective covers 4 are rotatably connected to the mounting shell 3, and the protective covers 4 can be rotated to the upper position for locking and fixing. The edges of the joints of the left and right protective covers 4 are engaged with the mounting shell 3 near both ends. The mounting shell 3 surrounds and protects the sensor plate 7, and the two protective covers 4 close the lower port of the mounting shell 3, thus better protecting the sensor plate 7. The protective covers 4 are rotatably mounted on the mounting shell 3 and do not need to be removed from the mounting shell 3 after opening, thus effectively preventing the protective covers 4 from being forgotten or lost.

[0035] Reference Figure 1 The upper side of the nucleus-free density meter body 2 is covered with a cover 1, which is locked in place with the nucleus-free density meter body 2. The cover 1 seals and protects the display screen and control keys on the upper surface of the nucleus-free density meter body 2 to prevent dust accumulation. A handle 6 is rotatably mounted on the upper surface of the mounting shell 3, which makes it easy to carry the entire device.

[0036] Reference Figure 2 The outer casing 3 is fixed with U-shaped rotating brackets 33 on both the left and right sides. The outer casing 3 rotates and installs the protective cover 4 through the rotating brackets 33. The inner side wall of the rotating bracket 33 is fixed with protruding retaining ribs 34, which are used to lock and limit the protective cover 4 when it is rotated to the upper side.

[0037] Both the front and rear sides of the mounting housing 3 are fixed with locking blocks 31. Two latching slots 32 are opened on the side of the locking blocks 31. The mounting housing 3 uses the locking blocks 31 and latching slots 32 to lock the protective cover 4 when it is closed.

[0038] Reference Figure 3 The protective cover 4 has upwardly bent buckle plates 41 fixed at both the front and rear ends. The buckle plate 41 facing the mounting shell 3 has a buckle platform 45 fixed in the buckle groove 32. The protective cover 4 uses the buckle plate 41 and the buckle platform 45 to lock together with the buckle block 31.

[0039] A connecting plate 42 is fixed on the side of the protective cover 4 away from the center of the mounting shell 3. A rotating plate 44 that bends upward is fixed to one end of the connecting plate 42. A rotating shaft 43 is fixed to the upper end of the rotating plate 44. The protective cover 4 is rotatably connected to the rotating bracket 33 by means of the rotating plate 44 and the rotating shaft 43.

[0040] Both sides of the rotating plate 44 are provided with slots 46, which cooperate with the locking ribs 34 to lock and limit the protective cover 4 when it is rotated to the upper side.

[0041] Reference Figure 4 Both sides of the cover 1 are fixed with downwardly bent clamping plates 11. A clamping platform 13 is fixed on the inner side of the clamping plate 11. The cover 1 is clamped to the main body 2 of the nucleus-free density meter by means of the clamping plate 11 and the clamping platform 13. An inclined pinching plate 12 is fixed at the lower end of the clamping plate 11. The clamping plate 11 can be easily opened by snapping it open.

[0042] Example 2,

[0043] This application discloses an asphalt mixture compaction tester. (Refer to...) Figure 1 and Figure 2 The device includes a nucleus-free density meter body 2, with a disc-shaped mounting shell 3 fixed to the lower side of the body 2. The mounting shell 3 has an opening at the bottom, and a sensor plate 7 is mounted inside the mounting shell 3. Two semi-circular protective covers 4 are provided on the lower side of the mounting shell 3. The opposite sides of the left and right protective covers 4 are rotatably connected to the mounting shell 3, and the protective covers 4 can be rotated to the upper position for locking and fixing. The edges of the joints of the left and right protective covers 4 are engaged with the mounting shell 3 near both ends. The mounting shell 3 surrounds and protects the sensor plate 7, and the two protective covers 4 close the lower port of the mounting shell 3, thus better protecting the sensor plate 7. The protective covers 4 are rotatably mounted on the mounting shell 3 and do not need to be removed from the mounting shell 3 after opening, thus effectively preventing the protective covers 4 from being forgotten or lost.

[0044] Reference Figure 1The upper side of the nucleus-free density meter body 2 is covered with a cover 1, which is locked in place with the nucleus-free density meter body 2. The cover 1 seals and protects the display screen and control keys on the upper surface of the nucleus-free density meter body 2 to prevent dust accumulation. A handle 6 is rotatably mounted on the upper surface of the mounting shell 3, which makes it easy to carry the entire device.

[0045] Reference Figure 2 The outer casing 3 is fixed with U-shaped rotating brackets 33 on both the left and right sides. The outer casing 3 rotates and installs the protective cover 4 through the rotating brackets 33. The inner side wall of the rotating bracket 33 is fixed with protruding retaining ribs 34, which are used to lock and limit the protective cover 4 when it is rotated to the upper side.

[0046] Both the front and rear sides of the mounting housing 3 are fixed with locking blocks 31. Two latching slots 32 are opened on the side of the locking blocks 31. The mounting housing 3 uses the locking blocks 31 and latching slots 32 to lock the protective cover 4 when it is closed.

[0047] Reference Figure 3 The protective cover 4 has upwardly bent buckle plates 41 fixed at both the front and rear ends. The buckle plate 41 facing the mounting shell 3 has a buckle platform 45 fixed in the buckle groove 32. The protective cover 4 uses the buckle plate 41 and the buckle platform 45 to lock together with the buckle block 31.

[0048] A connecting plate 42 is fixed on the side of the protective cover 4 away from the center of the mounting shell 3. A rotating plate 44 that bends upward is fixed to one end of the connecting plate 42. A rotating shaft 43 is fixed to the upper end of the rotating plate 44. The protective cover 4 is rotatably connected to the rotating bracket 33 by means of the rotating plate 44 and the rotating shaft 43.

[0049] Both sides of the rotating plate 44 are provided with slots 46, which cooperate with the locking ribs 34 to lock and limit the protective cover 4 when it is rotated to the upper side.

[0050] Reference Figure 4 Both sides of the cover 1 are fixed with downwardly bent clamping plates 11. A clamping platform 13 is fixed on the inner side of the clamping plate 11. The cover 1 is clamped to the main body 2 of the nucleus-free density meter by means of the clamping plate 11 and the clamping platform 13. An inclined pinching plate 12 is fixed at the lower end of the clamping plate 11. The clamping plate 11 can be easily opened by snapping it open.

[0051] Reference Figure 1 and Figure 5The lower surface of the protective cover 4 is fixed with support feet 5 near the front and rear sides. The support feet 5 include studs 53 fixed on the protective cover 4. The lower end of the stud 53 is threaded with a support block 51. The studs 53 and the support blocks 51 provide ground support for the protective cover 4. This is used to provide suspension support when placing the detection device to prevent the protective cover 4 from being deformed by collision and to prevent dirt from the ground from contaminating the detection device, thereby further protecting the detection device.

[0052] The lower end of the support block 51 is designed as a cone shape for better ground support; the outer side of the support block 51 is provided with anti-slip grooves 52 arranged in a uniform circular pattern to increase friction and facilitate rotation of the support block 51.

[0053] The implementation principle of the asphalt mixture compaction tester in this application embodiment is as follows: When performing asphalt mixture compaction test, the two protective covers 4 are rotated upward until the slot 46 on the rotating plate 44 and the clamping rib 34 are locked together to limit and fix the protective covers 4. Then, the mounting shell 3 is pressed against the ground and the main body of the density meter 2 is used to detect the compaction of asphalt through the sensing plate 7.

[0054] When the testing device is not in use and is placed on the ground, the protective cover 4 is supported by the stud 53 and the support block 51, thus supporting the entire device. When the ground is uneven, the support block 51 can be turned to adjust the support height, thereby completing the horizontal support adjustment of the device.

[0055] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An asphalt mix compaction detector comprising a coreless density gauge body (2) characterised in that: The lower side of the coreless density gauge body (2) is fixed with a disc-shaped mounting shell (3), the lower side of the mounting shell (3) is provided with an opening, and the inboard of the mounting shell (3) is provided with an induction plate (7), the lower side of the mounting shell (3) is provided with two semicircular protective covers (4), the opposite side of the protective cover (4) on the left and right sides is rotatably connected with the mounting shell (3), and the protective cover (4) can be turned to the upper side for clamping and fixing, and the edges of the abutting portions of the protective cover (4) on the left and right sides are clamped and matched with the mounting shell (3) at the two end positions.

2. The asphalt mixture compaction degree detector according to claim 1, characterized in that: The upper side of the coreless density gauge body (2) is covered with a cover (1), the cover (1) is clamped and matched with the coreless density gauge body (2), and the upper surface of the mounting shell (3) is rotatably provided with a handle (6).

3. The asphalt mixture compaction detector according to claim 2, characterized in that: The mounting shell (3) is fixed with a U-shaped rotating support (33) on the left and right sides, and the side wall on the inboard of the rotating support (33) is fixed with a protruding clamping rib (34).

4. The asphalt mixture compaction detector according to claim 3, characterized in that: The mounting shell (3) is fixed with a clamping block (31) on the front and rear sides, and the side surface of the clamping block (31) is provided with two buckle grooves (32).

5. The asphalt mixture compaction detector according to claim 4, characterized in that: The front and rear end positions of the protective cover (4) are fixed with an upwardly bent buckle plate (41), and the side of the buckle plate (41) facing the mounting shell (3) is fixed with a buckle table (45) clamped in the buckle groove (32).

6. The asphalt mixture compaction detector according to claim 5, characterized in that: The side of the protective cover (4) away from the center of the mounting shell (3) is fixed with a connecting plate (42), one end of the connecting plate (42) is fixed with an upwardly bent rotating plate (44), the upper end of the rotating plate (44) is fixed with a rotating shaft (43), and the two sides of the rotating plate (44) are provided with clamping grooves (46).

7. The asphalt mixture compaction detector according to claim 6, characterized in that: The left and right sides of the cover (1) are fixed with downwardly bent clamping plates (11), one side of the inboard of the clamping plate (11) is fixed with a clamping table (13), and the lower end of the clamping plate (11) is fixed with an inclined pinch plate (12).

8. The asphalt mixture compaction detector according to claim 1, characterized in that: The lower surface of the protective cover (4) is fixed with a supporting leg (5) near the front and rear sides, the supporting leg (5) comprises a threaded stud (53) fixed on the protective cover (4), the lower end of the threaded stud (53) is threadedly provided with a supporting block (51), the lower end of the supporting block (51) is tapered, and the outer side of the supporting block (51) is provided with circumferentially arranged anti-skid grooves (52).

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