CN218956260U

CN218956260U - Asphalt concrete elastic modulus measuring device

Info

Publication number: CN218956260U
Application number: CN202221969466.9U
Authority: CN
Inventors: 吴文安
Original assignee: Taizhou Road Construction Building Materials Technology Development Co ltd
Current assignee: Taizhou Road Construction Building Materials Technology Development Co ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2023-05-02
Anticipated expiration: 2032-07-28

Abstract

The utility model relates to the technical field of concrete elastic modulus measuring devices and discloses an asphalt concrete elastic modulus measuring device, which comprises a base, wherein the middle part of the top end of the base is fixedly connected with a lower lantern ring, four threaded hole grooves are uniformly formed in the lower lantern ring, four screws are movably connected in the threaded hole grooves of the lower lantern ring, one end of a dial indicator contact frame is movably connected to two sides of the top end of the lower lantern ring, an upper lantern ring is movably connected to the other end of the dial indicator contact frame, four threaded hole grooves are uniformly formed in the upper lantern ring, two first fixing plates are fixedly connected to two sides of the top end of the base, threaded hole grooves are formed in the middle part of the two first fixing plates, threaded columns are movably connected in the threaded hole grooves of the two first fixing plates, and the threaded columns rotate in the first fixing plates to drive a clamping frame fixedly connected with the threaded columns to move forwards until asphalt concrete is clamped. The asphalt concrete test piece is favorable for being firmly fixed, so that the measured data is more accurate.

Description

Asphalt concrete elastic modulus measuring device

Technical Field

The utility model relates to the technical field of elastic modulus measuring instruments, in particular to an asphalt concrete elastic modulus measuring device.

Background

The tester consists of an upper ring, a lower ring, a contact rod, a dial indicator and a set screw, wherein before the test starts, the tester is placed on a flat plane, the set screw of a test block is screwed out, the dial indicator is assembled, the set screw of a fixed plate is loosened, and the fixed plate is taken down, so that the tester is positioned on the test block. And placing the tester and the test block on a lower pressing plate of the pressure testing machine, aligning the center of the test block with the center of the lower pressing plate of the pressure testing machine, and zeroing the dial indicator.

The current concrete elastic modulus tester is completed through a set screw when a concrete test piece is compressed, the situation that the compression is incomplete is easy to cause errors in measurement of the elastic modulus of asphalt concrete, the measurement result is affected, the height of the tester can be required to be adjusted when the tester is used, and the height of the current concrete elastic modulus tester cannot be adjusted, so that improvement is urgently needed. For this purpose we provide an asphalt concrete elastic modulus measuring device.

Disclosure of Invention

Aiming at the defects that the compression is incomplete and the disassembly and the storage are easy to lose, the utility model provides the asphalt concrete elastic modulus measuring device, which has the advantages that the test block is firmly fixed and the elastic modulus measuring instrument part is not easy to lose, and solves the problems mentioned in the background art.

As shown in fig. 1-3, in order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides an asphalt concrete elastic modulus survey device, includes the base, the top middle part fixedly connected with of base is the lantern ring down, four screw hole grooves have been evenly seted up on the lantern ring down, the screw hole inslot swing joint of lantern ring has four screws down, the equal swing joint in top both sides of lantern ring has the one end of amesdial contact frame down, the other end swing joint of amesdial contact frame has the lantern ring on, four screw hole grooves have been evenly seted up on the lantern ring on, the screw hole inslot swing joint of last lantern ring has four screws, the top both sides fixedly connected with of base two screw hole grooves have been seted up at the middle part of first fixed plate, two the equal swing joint in screw hole inslot of first fixed plate has the screw post, two the equal fixedly connected with twist grip of one end of screw post, two the equal fixedly connected with block frame of the other end of screw post.

In a preferred embodiment, the two sides of the top end of the base, which are different from the position where the base is located, are fixedly connected with second fixing plates, threaded holes are formed in the positions, close to the top ends, of the second fixing plates, a motor is movably connected in the threaded holes of the second fixing plates, one end of the motor is fixedly connected with a gear disc, and the outer edges of the gear disc are meshed with threaded lifting rods.

In a preferred embodiment, the middle part of the threaded lifting rod is a threaded rod, and two ends of the threaded lifting rod are smooth rod-shaped structures.

In a preferred embodiment, the following applies: the lower lantern ring and the upper lantern ring are the same in size and shape, the clamping frame is of an elastic hard silica gel structure, and the clamping frame is of a U-shaped structure.

In a preferred embodiment, the ratio of the diameters of the base and the lower collar is two to one, and the dial gauge contact frame is detachable from the dial gauge.

Compared with an asphalt concrete elastic modulus measuring device, the device has the following beneficial effects:

1. through being equipped with first fixed plate, after the asphalt concrete test piece was placed in lower lantern ring and last lantern ring, rotated twist grip, twist grip drove and twist grip fixed connection's screw thread post moves forward, because first fixed plate is motionless, screw thread post rotatory removal in first fixed plate, drives and moves forward until clamping asphalt concrete with screw thread post fixed connection's block frame. The asphalt concrete test piece is favorable for being firmly fixed, so that the measured data is more accurate.

2. Through being equipped with the motor, when asphalt concrete elastic modulus survey device need height-adjusting, start the motor, through the fixed supporting effect of second fixed plate, drive the gear wheel and rotate, the gear wheel drives the screw thread lifter with gear wheel meshing reciprocates, plays the effect of adjusting down between the lantern ring and the last lantern ring. Is beneficial to the needs of various working conditions.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a lifting structure according to the present utility model;

FIG. 3 is a schematic view of a fastening structure according to the present utility model;

in the figure: 1. a base; 2. a lower collar; 3. an upper collar; 4. a dial gauge contact frame; 5. a dial gauge; 6. a screw; 7. rotating the handle; 8. a threaded column; 9. a first fixing plate; 10. a clamping frame; 11. a threaded lifting rod; 12. a gear plate; 13. a second fixing plate; 14. and a motor.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-3, the utility model provides an asphalt concrete elastic modulus measuring device, which comprises a base 1, wherein the middle part of the top end of the base 1 is fixedly connected with a lower lantern ring 2, four threaded holes are uniformly formed in the lower lantern ring 2, four screws 6 are movably connected in the threaded holes of the lower lantern ring 2, one end of a dial indicator contact frame 4 is movably connected to two sides of the top end of the lower lantern ring 2, the other end of the dial indicator contact frame 4 is movably connected with an upper lantern ring 3, four threaded holes are uniformly formed in the upper lantern ring 3, four screws 6 are movably connected in the threaded holes of the upper lantern ring 3, two first fixing plates 9 are fixedly connected to two sides of the top end of the base 1, threaded holes are formed in the middle parts of the two first fixing plates 9, threaded columns 8 are movably connected in the threaded holes of the two first fixing plates 9, one ends of the two threaded columns 8 are fixedly connected with a rotary handle 7, and the other ends of the two threaded columns 8 are fixedly connected with a clamping frame 10. The asphalt concrete test block is favorable for further fixing, so that the measurement data is more accurate.

Further, two sides of the top end of the base 1 different from the position where the two sides are fixedly connected with second fixing plates 13, threaded hole grooves are formed in the positions, close to the top ends, of the two second fixing plates 13, a motor 14 is movably connected in the threaded hole grooves of the second fixing plates 13, one end of the motor 14 is fixedly connected with a gear disc 12, and the outer edges of the gear disc 12 are meshed with threaded lifting rods 11. When the elastic modulus measuring device needs to be lifted, the motor is started, so that the measurement of the elastic modulus under various working states is facilitated.

Further, the middle part of the threaded lifting rod 11 is a threaded rod, and two ends of the threaded lifting rod 11 are smooth rod-shaped structures. The lifting is convenient, and the height of the tester is adjusted.

Further, the lower collar 2 and the upper collar 3 have the same size and shape, the clamping frame 10 has an elastic hard silica gel structure, and the clamping frame 10 has a U-shaped structure. So that the asphalt concrete test block is more stable.

Further, the diameter ratio of the base 1 to the lower lantern ring 2 is two to one, and the dial indicator contact frame 4 and the dial indicator 5 are detachable. Under the action of the base, whether the measuring device is horizontal or not can be clearly observed.

Working principle: firstly, putting an asphalt concrete test block into a lower lantern ring 2 and an upper lantern ring 3, fixing the asphalt concrete block up and down through a rotary screw 6, rotating a rotary handle 7 after the asphalt concrete test block is put into the lower lantern ring 2 and the upper lantern ring 3 through being provided with a first fixing plate 9, driving a threaded column 8 fixedly connected with the rotary handle 7 to move forwards through the rotary handle 7, and driving a clamping frame 10 fixedly connected with the threaded column 8 to move forwards until clamping asphalt concrete because the first fixing plate 9 is fixed.

Secondly, through being equipped with motor 14, when asphalt concrete elastic modulus survey device need height-adjusting, start motor 14, through the fixed supporting effect of second fixed plate 13, drive gear disk 12 rotation, gear disk 12 drive with gear disk 12 engaged screw thread lifter 11 reciprocates, play the effect of adjusting down between lantern ring 2 and the last lantern ring 3.

Finally, the asphalt concrete test block can be taken down by reversely rotating the screw 6 and the rotating handle 7, and the next test is carried out.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Also in the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. And in the drawings of the present utility model, the filling patterns are only for distinguishing the layers, and are not limited in any way.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an asphalt concrete elastic modulus survey device, includes base (1), its characterized in that: the utility model discloses a screw thread fixing device for the base, including base (1), lantern ring (2) down is gone up in top middle part fixedly connected with of base (1), four screw hole grooves have been seted up evenly on lantern ring (2) down, four screw holes (6) have been seted up to the screw hole inslot swing joint of lantern ring (2) down, the equal swing joint in top both sides of lantern ring (2) have one end of amesdial contact frame (4) down, the other end swing joint of amesdial contact frame (4) has lantern ring (3), four screw hole grooves have been seted up evenly on last lantern ring (3), the screw hole inslot swing joint of last lantern ring (3) has four screw (6), the top both sides fixedly connected with of base (1) two screw hole grooves have been seted up at the middle part of first fixed plate (9), two the equal swing joint in screw hole inslot of screw hole groove of first fixed plate (9) has screw thread post (8), two the equal fixedly connected with twist grip (7) of one end of screw post (8), two the equal fixedly connected with block frame (10) of screw post (8).

2. The asphalt concrete elastic modulus measuring apparatus according to claim 1, wherein: the base is characterized in that two sides of the top end of the base (1) different from the position are fixedly connected with second fixing plates (13), threaded holes are formed in the positions, close to the top ends, of the second fixing plates (13), motors (14) are movably connected in the threaded holes of the second fixing plates (13), one end of each motor (14) is fixedly connected with a gear disc (12), and threaded lifting rods (11) are meshed with the outer edges of the gear discs (12).

3. The asphalt concrete elastic modulus measuring apparatus according to claim 2, wherein: the middle part of the threaded lifting rod (11) is a threaded rod, and two ends of the threaded lifting rod (11) are smooth rod-shaped structures.

4. The asphalt concrete elastic modulus measuring apparatus according to claim 1, wherein: the lower lantern ring (2) and the upper lantern ring (3) are the same in size and shape, the clamping frame (10) is of an elastic hard silica gel structure, and the clamping frame (10) is of a U-shaped structure.

5. The asphalt concrete elastic modulus measuring apparatus according to claim 1, wherein: the diameter ratio of the base (1) to the lower lantern ring (2) is two to one, and the dial indicator contact frame (4) and the dial indicator (5) are detachable.