CN214427437U - Concrete contraction and expansion instrument - Google Patents

Abstract

The utility model belongs to the technical field of the technique that the concrete detected and specifically relates to a concrete contraction and expansion appearance is related to, it includes base, fixing base and percentage table, the percentage table is installed in the fixing base, one side that the percentage table was kept away from to the fixing base is rotated and is installed in the base, the sliding groove that extends along the horizontal direction is seted up to the fixing base, the inslot cunning that slides is connected with the sliding block, the articulated connecting rod of installing of sliding block, the connecting rod is kept away from the one end rotation of sliding block and is set up in the base, the base is provided with drive connecting rod pivoted runner assembly. This application has and is convenient for carry out the inflation shrinkage measurement to the work piece of different angles, and then improves the effect of suitability.

Description

Concrete contraction and expansion instrument

Technical Field

The application relates to the field of concrete detection, in particular to a concrete contraction and expansion instrument.

Background

Concrete is widely applied to civil engineering, and the concrete deforms under the action of excessive load or temperature and humidity, so that the concrete is generally required to be physically detected by a concrete contraction and expansion instrument before use. The concrete shrinkage dilatometer is a special instrument for measuring the length or volume change of a concrete sample in the hardening process under specific environmental conditions.

Concrete shrinkage and expansion appearance among the correlation technique includes the fixing base usually and installs in shelf, standard pole and the percentage table of fixing base, and shelf and standard pole are used for carrying out the zero calibration adjustment to the percentage table, take off shelf and standard pole from the fixing base during the measurement, place the concrete test piece in the fixing base afterwards to measure through the percentage table can.

In view of the above-mentioned related technologies, the inventor believes that the angle adjustment of the fixing seat is inconvenient, the expansion and contraction measurement of workpieces at different angles is difficult, and the applicability is poor.

SUMMERY OF THE UTILITY MODEL

In order to facilitate carrying out the expansion and contraction measurement to the work piece of different angles, improve the suitability, this application provides a concrete contraction dilatometer.

The application provides a concrete contraction and expansion instrument adopts following technical scheme:

the utility model provides a concrete contraction and expansion appearance, includes base, fixing base and percentage table, the percentage table is installed in the fixing base, one side that the percentage table was kept away from to the fixing base is rotated and is installed in the base, the groove that slides that extends along the horizontal direction is seted up to the fixing base, the inslot cunning that slides is connected with the sliding block, the articulated connecting rod of installing of sliding block, the connecting rod is kept away from the one end rotation of sliding block and is set up in the base, the base is provided with drive connecting rod pivoted runner assembly.

Through adopting above-mentioned technical scheme, rotate through rotating assembly drive connecting rod, the sliding block slides at the inslot that slides thereupon, the fixing base rotates around its turning point thereupon, the connecting rod supports sliding block and fixing base, the angle of fixing base is adjusted thereupon promptly, and then be convenient for carry out the inflation shrink measurement to the work piece of different angles, also can detect the shrink inflation condition when the work piece is located different angles, the suitability is strong, can adjust the angle of fixing base through the rotation of connecting rod, thereby make staff's easy and simple to handle.

Optionally, the rotating assembly comprises a rotating shaft, a worm wheel and a worm, the rotating shaft is rotatably installed on the base, the rotating shaft is fixedly connected to one end, away from the sliding block, of the connecting rod, the worm wheel is fixedly sleeved on the rotating shaft, and the worm is meshed with the worm wheel and is in running fit with the base.

Through adopting above-mentioned technical scheme, when rotating the worm, the worm wheel drives pivot and connecting rod and rotates along with it, and the self-locking effect between worm wheel and worm is favorable to guaranteeing pivot and connecting rod rotation back, the stability of its position.

Optionally, one end of the rotating shaft penetrates out of the base, and the worm gear fixing sleeve is arranged at one end of the rotating shaft penetrating out of the base.

Through adopting above-mentioned technical scheme, wear out the outer pivot of base and be convenient for the staff and install worm wheel and worm, be convenient for in time overhaul and maintain worm wheel and worm simultaneously.

Optionally, a protective cover for covering the worm wheel and the worm is arranged outside the base.

Through adopting above-mentioned technical scheme, the protection casing plays the guard action to worm wheel and worm to make the outer material of protection casing be difficult for causing the influence to the meshing between worm wheel and the worm.

Optionally, one end of the worm, which is far away from the worm wheel, is fixedly connected with a holding part.

Through adopting above-mentioned technical scheme, the setting of the portion of gripping provides the impetus of a force application of being convenient for the staff, and then the staff's force application of being convenient for rotates the worm.

Optionally, the cross sections of the sliding block and the sliding groove are both in a T shape.

Through adopting above-mentioned technical scheme, the position when the sliding block slides along the sliding groove is difficult for squinting, and then is favorable to guaranteeing the stability when the sliding block slides along the sliding groove.

Optionally, the connecting rod includes the first body of rod and the second body of rod, the one end of the first body of rod is rotated and is connected in the sliding block, the other end is rotated and is connected in the second body of rod, the one end and the pivot fixed connection of the first body of rod are kept away from to the second body of rod, the groove of accomodating has been seted up to the base, when the fixing base is located the horizontality, the first body of rod and the second body of rod all are located and accomodate the inslot.

Through adopting above-mentioned technical scheme, accomodate the groove and play the effect of accomodating first body of rod and second body of rod promptly connecting rod, and then be convenient for guarantee the stability when the fixing base is located the horizontality, simultaneously for when the fixing base is located the horizontality, the connecting rod is difficult for appearing because of the wearing and tearing condition that leads to with external object body facies touching.

Optionally, the base is provided with scale marks distributed along the horizontal direction at a position close to the accommodating groove.

Through adopting above-mentioned technical scheme, the setting of scale mark is convenient for the staff directly perceivedly to the connecting rod pivoted place position directly perceived observe, and then is convenient for adjust the connecting rod promptly the fixing base to detecting required position fast.

In summary, the present application includes at least one of the following beneficial technical effects:

the angle of the fixing seat is adjusted accordingly, expansion and contraction of workpieces at different angles are conveniently measured, the contraction and expansion conditions of the workpieces at different angles can be detected, and the applicability is high.

The self-locking effect between the worm wheel and the worm is beneficial to ensuring the stability of the position of the worm wheel after the worm wheel drives the rotating shaft and the connecting rod to rotate.

The accommodating groove plays an accommodating role of the first rod body and the second rod body, namely the connecting rod, and therefore stability of the fixing seat in a horizontal state is convenient to guarantee.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a partial sectional structural schematic view of the base and the fixing base.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

Description of reference numerals: 1. a base; 2. a fixed seat; 201. a fixing plate; 202. positioning a plate; 203. a column; 3. a shelf; 301. a vertical plate; 4. a standard rod; 5. a dial indicator; 6. a sliding groove; 7. a sliding block; 8. a connecting rod; 801. a first rod body; 802. a second rod body; 9. a rotating shaft; 10. a worm gear; 11. a worm; 12. a protective cover; 13. a grip portion; 14. a receiving groove; 15. scale lines are marked.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses concrete shrinkage dilatometer. Referring to fig. 1, the concrete contraction and expansion instrument includes a base 1, a fixing base 2, a shelf 3, a standard rod 4 and a dial indicator 5, wherein the fixing base 2 includes a fixing plate 201, a positioning plate 202 and a column 203, the fixing plate 201 is substantially in a rectangular plate structure, the positioning plate 202 and the column 203 are respectively and fixedly mounted on the top of the fixing plate 201 and respectively disposed near two sides of the plane of the fixing plate in the length direction, and the dial indicator 5 is mounted on a side wall of the column 203 far away from the positioning plate 202 and used for measuring a concrete sample placed between the positioning plate 202 and the column 203.

Referring to fig. 1 and 2, the shelf 3 includes two upright plates 301 disposed opposite to each other, the two upright plates 301 are disposed on the top of the fixing plate 201 and located between the positioning plate 202 and the upright 203, the standard rod 4 sequentially passes through the two upright plates 301 along the horizontal direction, and two ends of the standard rod 4 in the length direction respectively abut against the positioning plate 202 and a measuring head of the dial indicator 5, so as to adjust the zero calibration of the dial indicator 5.

Continuing to refer to fig. 1 and 2, base 1 is roughly rectangular plate-shaped structure, and fixed plate 201 is equal with the cross-sectional area of base 1 and fixed plate 201 is located the top of base 1, and fixed plate 201 length direction is kept away from stand 203 and is one side of percentage table 5 and rotate and connect in one side of base 1 length direction to make fixed plate 201 can rotate relative base 1, and then be convenient for carry out the inflation shrinkage measurement to the work piece of different angles.

Referring to fig. 2 and 3, a sliding groove 6 extending horizontally along the length direction of the surface of the fixed plate 201 is formed in one side of the fixed plate 201 facing the base 1, i.e., the bottom of the fixed plate 201, a sliding block 7 is connected to the sliding groove 6 in a sliding manner, and the longitudinal sections of the sliding block 7 and the sliding groove 6 are both in a T shape, so that the sliding process of the sliding block 7 along the sliding groove 6 is stable.

Continuing to refer to fig. 2 and fig. 3, the connecting rod 8 is installed in the articulated connection of sliding block 7, connecting rod 8 includes first body of rod 801 and second body of rod 802, the one end of first body of rod 801 is rotated and is installed in sliding block 7, the other end of first body of rod 801 rotates and connects in second body of rod 802, the one end that first body of rod 801 was kept away from to second body of rod 802 rotates and connects in base 1, base 1 is provided with the pivoted rotating assembly of drive second body of rod 802, so that when second body of rod 802 rotates, first body of rod 801 drives sliding block 7 and slides in sliding groove 6, and then realize fixing base 2 around the rotation regulation of base 1.

Referring to fig. 2, the rotating assembly includes a rotating shaft 9, a worm wheel 10 and a worm 11, the rotating shaft 9 is fixedly connected to one end of the second rod 802 far away from the first rod 801, the rotating shaft 9 penetrates out of the base 1 along the horizontal direction and is rotatably matched with the base 1, the worm wheel 10 is fixedly sleeved on one end of the rotating shaft 9 penetrating out of the base 1, the worm 11 is meshed with the worm wheel 10 and is rotatably matched with the base 1, so that when the worm 11 rotates, the worm wheel 10 drives the rotating shaft 9 and the second rod 802 to rotate together with the rotating shaft, and a self-locking effect between the worm wheel 10 and the worm 11 is beneficial to ensuring the stability of the positions of the first rod 801 and the second rod 802, i.e., the connecting rod 8 after rotating.

Referring to fig. 1 and 2, a shield 12 for covering the worm wheel 10 and the worm 11 is attached to one side of the base 1 to shield the engagement between the worm wheel 10 and the worm 11. One end of the worm 11 penetrates out of the protective cover 12 and is in running fit with the protective cover 12, one end of the worm 11 penetrating out of the protective cover 12 is fixedly connected with a holding part 13, the holding part 13 is roughly in a circular plate-shaped structure, and anti-skid grains are further engraved on the peripheral surface of the holding part 13 so as to facilitate the force application of a worker to rotate the worm 11.

Continuing to refer to fig. 1 and fig. 2, in order to facilitate the first rod 801 and the second rod 802 to be received, thereby the position of the fixing plate 201 is stable when it is in the horizontal state, one side of the base 1 facing the fixing base 2, i.e. the top of the base 1, is provided with a receiving groove 14 opposite to the sliding groove 6, the receiving groove 14 extends along the length direction of the surface where the receiving groove 14 is located, the length of the first rod 801 is smaller than the depth of the receiving groove 14, the length of the second rod 802 is smaller than the length of the receiving groove 14, so that when the fixing base 2 rotates to the horizontal state, the first rod 801 and the second rod 802 are both located in the receiving groove 14. In order to facilitate the visual observation of the position of the rotating connecting rod 8, the top of the base 1 is marked with scale lines 15, and the scale lines 15 are arranged close to the accommodating groove 14 and are horizontally distributed along the length direction of the surface where the scale lines 15 are arranged.

The implementation principle of the concrete contraction and expansion instrument in the embodiment of the application is as follows: rotate worm 11 through portion 13 that grips, and then make worm wheel 10 drive pivot 9 and the second body of rod 802 together rotate thereupon, at this moment, sliding block 7 slides in sliding groove 6, fixing base 2 rotates around its turning point thereupon, second body of rod 802 supports sliding block 7 and fixing base 2, the angle of fixing base 2 has been adjusted thereupon promptly, and then be convenient for carry out the inflation shrink measurement to the work piece of different angles, also can detect the shrink inflation condition when the work piece is located different angles, the suitability is strong, can adjust the angle of fixing base 2 through the rotation of the application of force to the second body of rod 802, thereby make staff's easy and simple to handle.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. A concrete shrinkage dilatometer is characterized in that: including base (1), fixing base (2) and percentage table (5), install in fixing base (2) percentage table (5), one side that percentage table (5) were kept away from in fixing base (2) is rotated and is installed in base (1), sliding groove (6) along the horizontal direction extension are seted up in fixing base (2), sliding groove (6) internal slipping is connected with sliding block (7), connecting rod (8) are installed in sliding block (7) are articulated, the one end that sliding block (7) were kept away from in connecting rod (8) is rotated and is set up in base (1), base (1) is provided with drive connecting rod (8) pivoted runner assembly.

2. The concrete contraction and expansion instrument according to claim 1, wherein: the rotating assembly comprises a rotating shaft (9), a worm wheel (10) and a worm (11), the rotating shaft (9) is rotatably installed on the base (1), the rotating shaft (9) is fixedly connected to one end of the connecting rod (8) far away from the sliding block (7), the rotating shaft (9) is fixedly sleeved on the worm wheel (10), and the worm (11) is meshed with the worm wheel (10) and is in running fit with the base (1).

3. A concrete contraction and expansion instrument according to claim 2, wherein: one end of the rotating shaft (9) penetrates out of the base (1), and the worm wheel (10) is fixedly sleeved at one end of the rotating shaft (9) which penetrates out of the base (1).

4. A concrete contraction and expansion instrument according to claim 3, wherein: and a protective cover (12) which covers the worm wheel (10) and the worm (11) is arranged outside the base (1).

5. A concrete contraction and expansion instrument according to claim 2, wherein: one end of the worm (11) far away from the worm wheel (10) is fixedly connected with a holding part (13).

6. The concrete contraction and expansion instrument according to claim 1, wherein: the cross sections of the sliding block (7) and the sliding groove (6) are both T-shaped.

7. A concrete contraction and expansion instrument according to claim 2, wherein: connecting rod (8) include the first body of rod (801) and the second body of rod (802), the one end of the first body of rod (801) is rotated and is connected in sliding block (7), the other end and rotates and connect in the second body of rod (802), the one end and pivot (9) fixed connection of the first body of rod (801) are kept away from to the second body of rod (802), base (1) has been seted up and has been accomodate groove (14), when fixing base (2) are located the horizontality, the first body of rod (801) and the second body of rod (802) all are located and accomodate groove (14).

8. The concrete contraction and expansion instrument according to claim 7, wherein: and scale marks (15) distributed along the horizontal direction are engraved at the position, close to the accommodating groove (14), of the base (1).

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