CN220443864U - Test piece support for permeable concrete permeability test - Google Patents

Abstract

The utility model provides a permeable concrete water permeability test piece support, which comprises: a base; the hollow bin is arranged in the base; the sliding grooves are four and are formed in the upper surface of the base along the annular array; the threaded rod is vertically and rotatably arranged in the hollow bin, and the upper end of the threaded rod penetrates out of the top wall of the base and is in threaded connection with a lifting plate; the sliding blocks are provided with four sliding grooves and are in one-to-one corresponding sliding connection with the four sliding grooves; the four connecting rods are arranged and are in one-to-one corresponding rotary connection between the four sliding blocks and the four side walls of the lifting plate; the four support legs are arranged and fixedly connected with the four sliding blocks in a one-to-one correspondence manner, and each support leg is provided with a plurality of bolt holes at intervals along the vertical direction; the support is provided with four, and is connected with four landing legs one-to-one through the bolt hole. The utility model solves the problems that the supporting effect on the cylindrical concrete test piece is poor and the concrete test pieces with different sizes cannot be effectively supported in the prior art.

Description

Test piece support for permeable concrete permeability test

Technical Field

The utility model relates to the technical field of material test equipment, in particular to a permeable concrete water permeability test piece support.

Background

In the technical field of material test equipment, a permeable concrete water permeability test specimen support is a test specimen support, and is mainly used for providing support for a test specimen in a permeable concrete water permeability test.

The conventional permeable concrete water permeability test specimen support generally comprises a support chassis, supporting legs, supporting angles, auxiliary vertical rods and other structures, is convenient to use and disassemble, can well meet the test requirements of a concrete test specimen, and ensures the effectiveness of the permeable area of the test specimen.

However, in the above structure, the supporting leg is usually fixedly connected to the middle part of the supporting chassis by using a bolt, which causes the following technical problems: 1. the device has poor supporting effect on the cylindrical concrete test piece; 2. the device cannot effectively support concrete test pieces of different sizes.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model provides a permeable concrete water permeability test specimen support, which solves the problems that the supporting effect on a cylindrical concrete specimen is poor and concrete specimens with different sizes cannot be effectively supported in the prior art.

The embodiment of the utility model provides a permeable concrete water permeability test piece support, which comprises:

a base;

the hollow bin is arranged in the base;

the sliding grooves are arranged in four and are arranged on the upper surface of the base along the annular array, and an included angle between two adjacent sliding grooves is 90 degrees;

the threaded rod is vertically and rotatably arranged in the hollow bin, and the upper end of the threaded rod penetrates out of the top wall of the base and is in threaded connection with a lifting plate;

the sliding blocks are provided with four sliding grooves and are in one-to-one corresponding sliding connection with the four sliding grooves;

the four connecting rods are arranged and are in one-to-one corresponding rotary connection between the four sliding blocks and the four side walls of the lifting plate;

the four support legs are arranged and fixedly connected with the four sliding blocks in a one-to-one correspondence manner, and each support leg is provided with a plurality of bolt holes at intervals along the vertical direction;

the support, the support is provided with four, and through the bolt hole with four landing leg one-to-one is connected.

Preferably, the four sliding rods are fixedly connected in the four sliding grooves in a one-to-one correspondence manner, and the sliding blocks are connected with the sliding rods in a penetrating and sliding manner.

Preferably, the two limiting rods are fixedly connected with the upper surface of the base vertically, and the lifting plate is slidably connected with the two limiting rods along the vertical direction.

Preferably, the shaft rod is rotationally connected with the inside of the base, one end of the shaft rod penetrates into the hollow bin and then is fixedly connected with a first bevel gear, and the other end of the shaft rod penetrates out of the outer wall of the base and then is fixedly connected with an adjusting handle;

the second bevel gear is fixedly connected with the threaded rod, and is meshed with the first bevel gear in a transmission manner.

Preferably, the second bevel gear has twice the number of teeth as the first bevel gear.

Preferably, the thread lead angle of the threaded rod is smaller than the equivalent friction angle of threads formed by the threaded rod and the lifting plate.

Compared with the prior art, the utility model has the following beneficial effects:

1. because the structure of threaded rod and lifter plate threaded connection has been adopted for the lifter plate can the up-and-down motion, thereby drives the sliding block motion, adjusts the distance between each landing leg, still is equipped with the support on the landing leg, has overcome the landing leg and can't remove, leads to the device to cylindrical concrete test piece supporting effect not good, and can't effectually be applicable to the problem of supporting not unidimensional concrete test piece, and then makes the practicality of device stronger, has increased application scope.

2. Because the mechanical combined structure of the first bevel gear, the second bevel gear, the shaft lever and the adjusting handle is adopted, and the number of the gears of the second bevel gear is twice that of the gears of the first bevel gear, the problem that the use of the device is affected by directly adjusting the threaded rod is solved, and the device can be more convenient and labor-saving, adjust the distance between the supporting legs more accurately, and effectively support concrete test pieces in various shapes.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is an enlarged view of the utility model at B.

FIG. 3 is a cross-sectional view A-A of the present utility model.

In the above figures: 1. a base; 2. a shaft lever; 3. a threaded rod; 4. a first bevel gear; 5. a second bevel gear; 6. a sliding seat; 7. a support leg; 8. a slide bar; 9. a connecting rod; 10. a lifting plate; 11. a support; 12. a limit rod; 13. an adjusting handle; 14. a sliding groove; 15. a hollow bin.

Detailed Description

The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples.

As shown in fig. 1-3, an embodiment of the present utility model provides a permeable concrete water permeability test specimen holder, including:

a base 1;

the hollow bin 15 is arranged in the base 1;

the four sliding grooves 14 are arranged, and are arranged on the upper surface of the base 1 along the annular array, and the included angle between two adjacent sliding grooves 14 is 90 degrees;

the threaded rod 3 is vertically and rotatably arranged in the hollow bin 15, and the upper end of the threaded rod 3 penetrates out of the top wall of the base 1 and is in threaded connection with the lifting plate 10; wherein, a section of the threaded rod 3 extending out of the base 1 can be provided with threads, and the rest part is of a smooth structure so as to be convenient for carrying out security connection with subsequent parts;

the sliding blocks 6 are provided with four sliding blocks 6 and are in one-to-one sliding connection with the four sliding grooves 14;

the four connecting rods 9 are arranged, and the four connecting rods 9 are correspondingly connected between the four sliding blocks 6 and the four side walls of the lifting plate 10 in a one-to-one rotation manner;

the four support legs 7 are arranged and fixedly connected with the four sliding blocks 6 in a one-to-one correspondence manner, and a plurality of bolt holes are formed in each support leg 7 at intervals along the vertical direction;

the support 11, support 11 are provided with four, and are connected with four landing legs 7 one-to-one through the bolt hole. The support 11 can be moved up and down to be adjusted, so that the device can adjust each support 11 according to the size of a concrete test piece and test requirements, and the test piece can be placed stably.

In a specific implementation, the four sliding rods 8 are fixedly connected inside the four sliding grooves 14 in a one-to-one correspondence manner, and the sliding blocks 6 are in penetrating sliding connection with the sliding rods 8. The sliding rod 8 can ensure that the sliding block 6 moves according to the movement track required by design.

In specific implementation, the two limiting rods 12 are vertically and fixedly connected with the upper surface of the base 1, and the lifting plate 10 is in sliding connection with the two limiting rods 12 along the vertical direction. Wherein the limit rod 12 can ensure that the lifting plate 10 moves along the track of the design requirement.

In the implementation, the shaft lever 2 is rotationally connected with the inside of the base 1, one end of the shaft lever 2 penetrates into the hollow bin 15 and then is fixedly connected with the first bevel gear 4, and the other end of the shaft lever 2 penetrates out of the outer wall of the base 1 and then is fixedly connected with the adjusting handle 13;

the second bevel gear 5, second bevel gear 5 and threaded rod 3 fixed connection, and second bevel gear 5 and first bevel gear 4 transmission engagement.

In particular embodiments, the second bevel gear 5 has twice the number of teeth as the first bevel gear 4. Through the cooperation of above mechanical structure for threaded rod 3 can rotate with adjustment handle 13 and adjust, makes the device use more convenient, and adjustment handle 13 rotates two circles, and threaded rod 3 is rotatory a week, and slider 6 moves fixed distance, thereby makes the regulation of landing leg 7 position more accurate.

In particular, the thread angle of the threaded rod 3 is smaller than the equivalent friction angle of the threads formed by the threaded rod 3 and the lifting plate 10. Wherein, can utilize the screw thread lift angle of threaded rod 3 to be less than the equivalent friction angle of screw thread pair and realize the auto-lock, avoid threaded connection department to appear rocking, ensure that the supporting effect of support is more stable.

The detailed working procedure of this embodiment is:

during the use, according to the actual shape and the size of concrete test piece, adjust the support 11 through the bolt structure to the suitable high position of landing leg 7 on, then fixed, rotate adjustment handle 13, adjustment handle 13 drives axostylus axostyle 2 and rotates, axostylus axostyle 2 and then drive first bevel gear 4 and rotate, first bevel gear 4 meshing drives second bevel gear 5 and rotates, second bevel gear 5 drives threaded rod 3 and rotates, threaded rod 3 drives can drive and to do the oscilaltion rather than threaded connection's lifter plate 10, to suitable height, when lifter plate 10 reciprocates, can drive slider 6 through connecting rod 9 and control the removal, slider 6 removes and can drive landing leg 7 motion, landing leg 7 just can drive highly suitable support 11 and move suitable position, then put the concrete test piece, can receive the effective centre gripping of circumference fixedly, be convenient for carry out the concrete water permeability test.

Based on the above further improvement, since the number of the gears of the second bevel gear 5 is twice as large as that of the gears of the first bevel gear 4, the rotation of the adjustment handle 13 is more labor-saving, and the position adjustment of the leg 7 is more accurate.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims (6)

1. The utility model provides a concrete permeability test piece support permeates water which characterized in that includes:

a base (1);

the hollow bin (15) is arranged inside the base (1);

the sliding grooves (14) are formed in four, are formed in the upper surface of the base (1) along an annular array, and form an included angle of 90 degrees between two adjacent sliding grooves (14);

the threaded rod (3) is vertically arranged in the hollow bin (15) in a rotating mode, and the upper end of the threaded rod penetrates out of the top wall of the base (1) and is connected with a lifting plate (10) in a threaded mode;

the sliding blocks (6) are arranged, and the four sliding blocks (6) are in one-to-one corresponding sliding connection with the four sliding grooves (14);

the connecting rods (9) are arranged, and the connecting rods (9) are correspondingly connected between the four sliding blocks (6) and the four side walls of the lifting plate (10) in a one-to-one rotation mode;

the support legs (7) are provided with four support legs (7) and are fixedly connected with the four sliding blocks (6) in a one-to-one correspondence manner, and a plurality of bolt holes are formed in each support leg (7) at intervals along the vertical direction;

the support (11), support (11) are provided with four, and through the bolt hole with four landing leg (7) one-to-one is connected.

2. The permeable concrete water permeability test piece holder according to claim 1, further comprising:

the four sliding rods (8) are fixedly connected inside the four sliding grooves (14) in a one-to-one correspondence mode, and the sliding blocks (6) are connected with the sliding rods (8) in a penetrating and sliding mode.

3. The permeable concrete water permeability test piece holder according to claim 1, further comprising:

the lifting plate comprises two limiting rods (12), wherein the two limiting rods (12) are vertically and fixedly connected with the upper surface of the base (1), and the lifting plate (10) is slidably connected with the two limiting rods (12) along the vertical direction.

4. The permeable concrete water permeability test piece holder according to claim 1, further comprising:

the shaft lever (2) is rotationally connected with the inside of the base (1), one end of the shaft lever (2) penetrates into the hollow bin (15) and then is fixedly connected with the first bevel gear (4), and the other end of the shaft lever (2) penetrates out of the outer wall of the base (1) and then is fixedly connected with the adjusting handle (13);

the second bevel gear (5), second bevel gear (5) with threaded rod (3) fixed connection, just second bevel gear (5) and first bevel gear (4) transmission meshing.

5. The permeable concrete water permeability test piece support according to claim 4, wherein: the number of the gears of the second bevel gear (5) is twice that of the gears of the first bevel gear (4).

6. The permeable concrete water permeability test specimen holder according to claim 1, wherein: the thread lifting angle of the threaded rod (3) is smaller than the equivalent friction angle of threads formed by the threaded rod (3) and the lifting plate (10).