Pavement material strength tester

Abstract

The utility model discloses a pavement material strength tester which comprises a machine frame and guide rods installed on the two sides of the machine frame, a connecting part is arranged at the upper end of each guide rod, and a supporting frame is further arranged on each connecting part. The guide rod is further provided with a protection piece. The protection part comprises an outer cover, and the two sides of the outer cover are in sliding fit with the guide rods through arranged sliding parts. The sliding part comprises a sliding sleeve, a first screw rod is arranged on the side face of the sliding sleeve, a nut is further arranged on the first screw rod, the other end of the nut is in threaded fit with a second screw rod arranged on the outer cover, and the other end of the nut penetrates through an internal thread base arranged on the sliding sleeve through an arranged bolt and then abuts against the guide rod; and the sliding piece is fixed on the guide rod. The test piece can be conveniently placed by utilizing the up-and-down movement of the protection piece, and meanwhile, after the protection piece covers the test piece, the protection piece can be used for preventing disintegrating slag of the test piece from splashing outwards, so that the safety of a user is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a road material strength tester. Background Art

[0002] A Chinese patent application with authorization publication number CN206740510U discloses a pavement material strength tester comprising a workbench, a carrier plate fixed to the workbench, and a pressure mechanism for applying pressure to the material within the carrier plate. The pressure mechanism comprises a drive screw rotatably connected to the workbench, a pressure plate sleeved on the drive screw and threadedly connected to the drive screw, and a pressure rod fixed to a pressure seat. The workbench is also provided with a drive motor for rotating the drive screw. The invention is characterized in that a chip trough is provided on the side of the workbench facing the carrier plate, a cleaning mechanism for collecting and cleaning dust and waste chips is provided within the workbench, the cleaning mechanism being connected to the chip trough and including a suction fan. A chip removal zone and a water dust removal zone are connected to the chip trough and the suction fan in sequence via a pipe. A filter is fixed within the chip removal zone.

[0003] When using the tester, the pavement material is only placed on the supporting platform. After the pressure plate contacts the pavement material, it is easy to drive the pavement material to move on the supporting platform. In serious cases, the pavement material will fall off the supporting platform, making it impossible to conduct the test. In addition, the pavement material is prone to debris splashing after being compressed. Utility Model Content

[0004] The purpose of the present utility model is to provide a pavement material strength tester to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pavement material strength tester, comprising a frame and guide rods installed on both sides of the frame; a connecting portion is provided at the upper end of the guide rod, and a support frame is also provided on the connecting portion, and a protective member sliding on the guide rod is provided below the support frame; and the protective member is covered on the outside of the test piece to prevent the test piece from being displaced when under pressure and to prevent debris of the test piece from splashing outward.

[0006] As a preferred technical solution of the present invention: the protective member includes an outer cover, and both sides of the outer cover are slidably matched with the guide rod through sliding members.

[0007] As an optimal technical solution of the present invention: the sliding member includes a sliding sleeve sliding on the guide rod, a first screw is provided on the side of the sliding sleeve, and a nut is also provided on the first screw; the other end of the nut is threadably engaged with the second screw provided on the outer cover to complete the assembly of the outer cover and the sliding sleeve.

[0008] As a preferred technical solution of the present invention, a bolt is provided through an internal thread seat provided on the sliding sleeve and then pressed against the guide rod to fix the protective member on the guide rod.

[0009] As an optimal technical solution of the present utility model: the outer cover is made of a transparent material.

[0010] As a preferred technical solution of the present invention: nuts are provided at both ends of the support frame, and the nuts are threadedly engaged with the connecting portion to fix the support frame on the connecting portion.

[0011] As a preferred technical solution of the present invention: a level bead is further provided on the upper surface of the support frame.

[0012] By adopting the above technical solution, the beneficial effects of the utility model are as follows: 1. Since the protective member is covered on the outside of the test piece, the movement of the test piece can be restricted when the test piece is under pressure, thereby preventing the test piece from falling during the pressure process;

[0013] 2. The protective element can prevent the specimen from falling and also prevent the debris from splashing outward, thus improving the safety of the equipment during use;

[0014] 3. Since the protective piece can slide on the guide rod, it is moved to the top of the equipment before the specimen is placed to facilitate the placement of the specimen. After the specimen is placed, the protective piece is lowered to simply and conveniently complete the protection of the specimen by the protective piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is an exploded schematic diagram of the main structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the position state of the test piece of the utility model when the test piece is not under pressure;

[0018] Figure 4 This is a schematic diagram of the position state of the test piece of the utility model when the test piece is under pressure;

[0019] Figure 5 This is a schematic diagram of the exploded structure of the protective element of the present utility model;

[0020] Figure 6 This is a schematic diagram of the main structure of the sliding sleeve of the utility model.

[0021] In the figure: 1. Frame; 2. Guide rod; 3. Protective part; 30. Outer cover; 31. Second screw; 32. Sliding part; 33. Bolt; 34. Sleeve; 35. Nut; 36. First screw; 37. Internal threaded seat; 4. Support frame; 5. Connecting part; 6. Level bead; 7. Nut; 8. Test piece. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limitations on the present invention. In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "upper surface", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present invention.

[0023] See also Figure 1-6 The utility model provides an embodiment: a pavement material strength tester, including a frame 1, and guide rods 2 installed on both sides of the frame 1; a connecting portion 5 is provided at the upper end of the guide rod 2, and a support frame 4 is also provided on the connecting portion 5, and a protective member 3 sliding on the guide rod 2 is provided below the support frame 4; and the protective member 3 is covered on the outside of the test piece 8 to prevent the test piece 8 from being displaced when under pressure and to prevent debris of the test piece 8 from splashing outward.

[0024] In summary, since the protective member 3 covers the outside of the test piece 8, when the test piece 8 is pressurized, the movement of the test piece 8 can be restricted to prevent the test piece 8 from falling during the pressurization process; and the protective member 3 can prevent the test piece 8 from falling while also preventing debris from the test piece 8 from splashing outward, thereby improving the safety of the device during use.

[0025] In addition, since the protective member 3 can slide on the guide rod 2, the protective member 3 is moved to the top of the equipment before the specimen 8 is placed to facilitate the placement of the specimen 8. When the specimen 8 is placed, the protective member 3 is put down, and the protection of the specimen 8 by the protective member 3 can be completed simply and conveniently, and the operation is simple and convenient.

[0026] Specifically, the protective member 3 includes an outer cover 30, and both sides of the outer cover 30 are slidably matched with the guide rod 2 through a sliding member 32. Therefore, the sliding member 32 is used to slide up or down on the guide rod 2 to cause the outer cover 30 to cover the outside of the specimen 8, exposing the specimen 8.

[0027] Further, since the sliding piece 32 comprises a sliding sleeve 34 sliding on the guide rod 2, the side surface of the sliding sleeve 34 is provided with a first screw rod 36, and the first screw rod 36 is further provided with a screw nut 35; the other end of the screw nut 35 is threadedly matched with a second screw rod 31 provided on the outer cover 30, so as to complete the assembly of the outer cover 30 and the sliding sleeve 34, thus making the assembly of the outer cover 30 and the sliding sleeve 34 simple and convenient.

[0028] Meanwhile, the bolt 33 is passed through the internal threaded seat 37 provided on the sliding sleeve 34 and abuts against the guide rod 2, so as to fix the protective piece 3 on the guide rod 2. Thus, the sliding of the sliding sleeve 34 and the positioning of the sliding sleeve 34 after sliding can be easily and conveniently completed by tightening or loosening the bolt 33.

[0029] In addition, since the outer cover 30 is made of transparent material, it is convenient for the user to know the working state of the time in real time, wherein the outer cover 30 is preferably made of AGILITY material or tempered glass material.

[0030] On the basis of the above-mentioned scheme, since the two ends of the support frame 4 are provided with nuts 7, and the nuts 7 are threadedly matched with the connecting part 5 through the screw nuts 35, so as to fix the support frame 4 on the connecting part 5, thus the support frame 4 can be fixed by tightening the screw nuts 35, and conversely, the loosening of the screw nuts 35 facilitates the sliding of the support frame 4 on the connecting part 5, so as to adjust the use position of the support frame 4; specifically, the number of the screw nuts 35 is four, and two are a group, wherein the two screw nuts 35 in each group are respectively installed on the upper and lower surfaces of the support frame 4 and are threadedly matched with the connecting part 5, so that the stability of the position of the support frame 4 on the guide rod 2 can be further improved.

[0031] Further, since the upper surface of the support frame 4 is further provided with a leveling bead 6, the position of the bubble of the leveling bead 6 can be identified by the naked eye, so as to adjust the positions of the two ends of the support frame 4, and thus the two ends of the support frame 4 can be horizontally located on the guide rod 2, and thus the phenomenon that the crushed slag is easily splashed when the test piece 8 is pressed due to the inclined position of the support frame 4 can be avoided.

[0032] The embodiments of the utility model are described in detail in combination with the drawings, but the utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and still fall within the protection scope of the utility model.

Claims

1. A pavement material strength tester, characterized by: It comprises a frame (1) and guide rods (2) installed on both sides of the frame (1); A connecting portion (5) is provided at the upper end of the guide rod (2), a support frame (4) is further provided on the connecting portion (5), and a protective member (3) is provided below the support frame (4) and slides on the guide rod (2); The protective member (3) is covered on the outside of the test piece (8) to prevent the test piece (8) from being displaced when under pressure and to prevent debris of the test piece (8) from splashing outwards.

2. A pavement material strength tester according to claim 1, characterized in that: The protective member (3) comprises an outer cover (30), and both sides of the outer cover (30) are slidably engaged with the guide rod (2) via sliding members (32).

3. A pavement material strength tester according to claim 2, characterized in that: The sliding member (32) includes a sliding sleeve (34) sliding on the guide rod (2), a first screw (36) being provided on a side of the sliding sleeve (34), and a nut (35) being provided on the first screw (36); the other end of the nut (35) is threadedly engaged with a second screw (31) provided on the outer cover (30) to complete the assembly of the outer cover (30) and the sliding sleeve (34).

4. A pavement material strength tester according to claim 3, characterized in that: The protective member (3) is fixed to the guide rod (2) by passing a provided bolt (33) through an internal thread seat (37) provided on the sliding sleeve (34) and then pressing against the guide rod (2).

5. A pavement material strength tester according to claim 4, characterized in that: The outer cover (30) is made of a transparent material.

6. A pavement material strength tester according to any one of claims 3 to 5, characterized in that: Both ends of the support frame (4) are provided with nuts (7), and the nuts (35) are threadedly engaged with the connecting portion (5) to fix the support frame (4) on the connecting portion (5).

7. A pavement material strength tester according to claim 6, characterized in that: A level bead (6) is also provided on the upper surface of the support frame (4).

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