CN218121977U

CN218121977U - Concrete shrinkage testing machine

Info

Publication number: CN218121977U
Application number: CN202222113525.9U
Authority: CN
Inventors: 姜赫; 石沛东; 邓大先; 韩钊; 陈佳欢
Original assignee: China Communications Road And Bridge Construction Co ltd Overseas Branch; Road and Bridge International Co Ltd
Current assignee: China Communications Road And Bridge Construction Co ltd Overseas Branch; Road and Bridge International Co Ltd
Priority date: 2022-08-11
Filing date: 2022-08-11
Publication date: 2022-12-23
Anticipated expiration: 2032-08-11

Abstract

The utility model discloses a concrete shrinkage testing machine, including base, locating plate, regulation stand, locating plate and regulation stand all set up in the top of base, the bottom of locating plate runs through and has seted up the through-hole, the fixed surface of locating plate has first fixed block, the bottom of first fixed block has seted up first spacing groove relative to the position department of through-hole, the inside embedding of first spacing groove has the fixed column, one side of fixed column has seted up the draw-in groove, the bottom of fixed column runs through the through-hole and is connected with base fixed connection; through the first fixed block, second fixed block, baffle, fender stake, connecting plate, pull rod, fixed slot, the first spacing groove of design, when the locating plate appears damaging, can carry out quick replacement to the locating plate, easy operation, convenient reduces the time of changing, is favorable to carrying out the shrinkage test to the concrete.

Description

Concrete shrinkage testing machine

Technical Field

The utility model belongs to the technical field of testing device, concretely relates to concrete shrinkage testing machine.

Background

The G50 concrete is a necessary material in the industries of construction and the like at present, is generally used for upper structures such as bridge beam slab prefabrication and the like, has very high strength, and can generate a contraction phenomenon when meeting the change of a natural environment, the contraction of the concrete can cause the cracking of a wall body, and indexes of concrete durability evaluation are influenced, so the test of the contraction of the concrete is very important.

When the existing concrete contraction and expansion instrument is used, because a concrete test block needs to be tested, when the concrete test block is placed on a base, the concrete test block is easy to collide with a positioning plate, the positioning plate is thin, deformation and damage are easy to occur, and the positioning plate needs to be replaced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a concrete shrinkage testing machine to when solving the locating plate deformation damage, can carry out the problem of changing to the locating plate fast.

In order to achieve the above purpose, the utility model provides a following technical scheme: a concrete shrinkage testing machine comprises a base, a positioning plate and an adjusting upright post, wherein the positioning plate and the adjusting upright post are arranged at the top of the base, the positioning plate can position a concrete test block, a through hole is formed in the bottom of the positioning plate in a penetrating manner and facilitates the penetration of a fixing column, a first fixing block is fixed on the surface of the positioning plate, a first limiting groove is formed in the position, relative to the through hole, of the bottom of the first fixing block, the first limiting groove and the through hole can preliminarily limit the positioning plate, the fixing column is embedded in the first limiting groove, a clamping groove is formed in one side of the fixing column and can accommodate the end portion of a clamping plate so as to further limit the positioning plate, the through hole in the bottom of the fixing column is fixedly connected with the base, a second fixing block is fixed on the side, relative to the positioning plate, of the top of the base, one side of the second fixed block is penetrated and provided with a first sliding hole and a second sliding hole, the first sliding hole facilitates sliding of the clamping plate, the sliding direction of the clamping plate is limited, the second sliding hole facilitates sliding of the baffle plate, the sliding direction of the baffle plate is limited, the clamping plate penetrates through the inside of the first sliding hole, one end of the clamping plate is embedded into the inside of the clamping groove, the baffle plate penetrates through the inside of the second sliding hole, one end of the baffle plate is located at the top of the first fixed block, a plurality of grooves are formed in the bottom of the baffle plate, rubber convex blocks can be contained in the grooves, stability of the baffle plate is improved, a plurality of rubber convex blocks are fixed at the top of the first fixed block, the rubber convex blocks are embedded into the corresponding grooves, and a connecting plate is connected between the other end of the baffle plate and the other end of the clamping plate.

Preferably, a pull rod is fixed on one side of the connecting plate, the pull rod is convenient for pulling the connecting plate, and the cross section of the pull rod is of a C-shaped structure.

Preferably, rubber pads are fixed on the inner walls of the first limiting groove and the through hole, gaps among the fixing column, the inner wall of the first limiting groove and the inner wall of the through hole can be filled with the rubber pads, and the rubber pads are tightly attached to the surface of the fixing column.

Preferably, a spring groove is formed in one side of the second fixing block, the spring groove can accommodate a spring, space occupation is reduced, and the spring is connected between the inner wall of the spring groove and the connecting plate.

Preferably, a fixing groove is formed in the inner wall of one side of the second sliding hole, the retaining pile can be accommodated in the fixing groove after the baffle plate moves for a certain distance, and the retaining pile is fixed to the top of one end of the baffle plate.

Preferably, the top of adjusting the stand is provided with the transparent protection shield that the cross-section is "L" type structure, and transparent protection shield is the plastics material component, the top of transparent protection shield is run through and has been seted up first through-hole, and first through-hole can hold the metal post, metal post has been run through to first through-hole inside, the bottom and the regulation stand fixed connection of metal post, the top of transparent protection shield is provided with the turning block, the top of turning block is run through and has been seted up the second through hole, and the second through hole also can hold the metal post to spacing transparent protection shield, the metal post runs through the inside of second through hole to pass through threaded connection between the inner wall with the second through hole.

Preferably, the section of the rotating block is of a T-shaped structure, and anti-skid grains are arranged on the surface of the rotating block and facilitate the rotation of the rotating block.

Preferably, the bottom of the rotating block is fixed with a rubber ring, the rubber ring can improve the stability of the rotating block and prevent the rotating block from rotating easily, and the bottom of the rubber ring is abutted to the surface of the transparent protection plate.

Compared with the prior art, the beneficial effects of the utility model are that:

through the first fixed block, second fixed block, baffle, fender stake, connecting plate, pull rod, fixed slot, the first spacing groove of design, when the locating plate appears damaging, can carry out quick replacement to the locating plate, easy operation, convenient reduces the time of changing, is favorable to carrying out the shrinkage test to the concrete.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of region A of FIG. 1 according to the present invention;

FIG. 3 is a front cross-sectional view of the area A of FIG. 1 according to the present invention;

fig. 4 is a side sectional view of the transparent protection plate of the present invention;

FIG. 5 is an enlarged view of area B of FIG. 1 according to the present invention;

fig. 6 is a front cross-sectional view of region B of fig. 1 in accordance with the present invention;

in the figure: 1. a base; 2. positioning a plate; 3. adjusting the upright post; 4. a first fixed block; 5. a second fixed block; 6. a transparent protective plate; 7. rotating the block; 8. a baffle plate; 9. blocking piles; 10. a connecting plate; 11. a pull rod; 12. a fixing groove; 13. a first limit groove; 14. fixing the column; 15. a card slot; 16. clamping a plate; 17. a first sliding hole; 18. a second sliding hole; 19. a spring slot; 20. a first through hole; 21. a metal post; 22. a rubber ring; 23. a second through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1 to 6, the present invention provides a technical solution: a concrete shrinkage testing machine comprises a base 1, a positioning plate 2 and an adjusting upright post 3, wherein the positioning plate 2 and the adjusting upright post 3 are both arranged at the top of the base 1, a through hole is formed in the bottom of the positioning plate 2 in a penetrating manner, a first fixing block 4 is fixed on the surface of the positioning plate 2, a first limiting groove 13 is formed in the position, opposite to the through hole, of the bottom of the first fixing block 4, a fixing column 14 is embedded into the first limiting groove 13, the fixing column 14 can prevent the positioning plate 2 from moving in the horizontal direction, a clamping groove 15 is formed in one side of the fixing column 14, the bottom end of the fixing column 14 penetrates through the through hole and is fixedly connected with the base 1, a second fixing block 5 is fixed at one side, opposite to the positioning plate 2, of the top of the base 1, the second fixing block 5 can support a baffle plate 8 and a clamping plate 16, and one side of the second fixing block 5 is provided with a first sliding hole 17 and a second sliding hole 18 in a penetrating manner, the inside of the first sliding hole 17 is penetrated with a clamping plate 16, the clamping plate 16 and the clamping groove 15 can prevent the positioning plate 2 from sliding in the vertical direction, the stability of the positioning plate is improved, one end of the clamping plate 16 is embedded into the clamping groove 15, the inside of the second sliding hole 18 is penetrated with a baffle 8, the baffle 8 can further improve the stability of the positioning plate 2, the vertical direction is further limited, one end of the baffle 8 is positioned at the top of the first fixing block 4, the bottom of the baffle 8 is provided with a plurality of grooves, the top of the first fixing block 4 is fixed with a plurality of rubber bumps, the rubber bumps can improve the stability of the baffle 8, the rubber bumps are embedded into the corresponding grooves, a connecting plate 10 is connected between the other end of the baffle 8 and the other end of the clamping plate 16, the connecting plate 10 can pull the spring, so that the spring is stressed and contracted, when the positioning plate 2 is damaged, the positioning plate 2 can be quickly replaced by the structure, the operation is simple and convenient, the replacement time is reduced, and the shrinkage test of the concrete is facilitated; one side of connecting plate 10 is fixed with pull rod 11, the cross-section of pull rod 11 is "C" type structure, all be fixed with the rubber pad on the inner wall of first spacing groove 13 and through-hole, the rubber pad is hugged closely with the surface of fixed column 14, spring groove 19 has been seted up to one side of second fixed block 5, be connected with the spring between spring groove 19's inner wall and the connecting plate 10, fixed slot 12 has been seted up to one side inner wall of second slide hole 18, the one end top of baffle 8 is fixed with fender pile 9, keep off pile 9 and can avoid the inside of 8 roll-off second slide holes 18 of baffle.

In this embodiment, preferably, the top of adjusting the stand 3 is provided with transparent protection plate 6 that the cross-section is "L" type structure, there is the fastening knob that fastens the amesdial on adjusting the stand 3, transparent protection plate 6 can play the guard action to the fastening knob, avoid it to be rotated by accident, it is not hard up to lead to the amesdial to take place, first through-hole 20 has been seted up in the top of transparent protection plate 6 runs through, metal post 21 has run through metal post 21 in the inside of first through-hole 20, metal post 21 can tentatively spacing transparent protection plate 6, the bottom and the adjusting stand 3 fixed connection of metal post 21, the top of transparent protection plate 6 is provided with turning block 7, turning block 7 can be further spacing transparent protection plate 6, second through-hole 23 has been seted up in the top of turning block 7 runs through, metal post 21 runs through the inside of second through-hole 23, and pass through threaded connection between the inner wall with second through-hole 23, the cross-section of turning block 7 is "T" type structure, the surface of turning block 7 is provided with the antiskid line, the bottom of turning block 7 is fixed with rubber circle 22, the bottom offsets with the surface of transparent protection plate 6.

The utility model discloses a theory of operation and use flow: the utility model discloses a when using, if locating plate 2 appears warping, need change it, can stimulate pull rod 11, make it drive baffle 8 and cardboard 16 syntropy through connecting plate 10 and move, connecting plate 10 also stimulates the spring, make the spring atress extend, continue to stimulate pull rod 11, until the fender pile 9 of baffle 8 one end imbeds to the inside of fixed slot 12, at this moment, cardboard 16 also slips out the inside of first fixed block 4, then stimulate locating plate 2 upwards, make fixed column 14 take place relative slip in the inside of first spacing groove 13, until fixed column 14 slips out the inside of locating plate 2 completely, just dismantle locating plate 2, this structure can carry out quick replacement to locating plate 2, and is simple in operation, convenient, reduce the time of changing, be favorable to testing the concrete; next, install transparent protection board 6 on adjusting the stand 3, run through the inside of first through hole 20 with metal column 21, then establish turning block 7 cover on metal column 21's surface, make to be connected through the screw thread between the inner wall of metal column 21 and second through hole 23, rubber ring 22 until turning block 7 bottom is hugged closely with transparent protection board 6's surface, the fastening knob on the adjusting the stand 3 this moment is located transparent protection board 6's inboard, can play the guard action to the fastening knob, avoid it to be rotated by accident, lead to the amesdial to take place to become flexible.

Although embodiments of the present invention have been shown and described with particularity and detail in the foregoing description, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a concrete shrinkage testing machine, includes base (1), locating plate (2), adjusts stand (3), locating plate (2) and regulation stand (3) all set up in the top of base (1), its characterized in that: a through hole is arranged at the bottom of the positioning plate (2) in a penetrating way, a first fixing block (4) is fixed on the surface of the positioning plate (2), a first limit groove (13) is arranged at the position of the bottom of the first fixed block (4) corresponding to the through hole, a fixing column (14) is embedded in the first limiting groove (13), a clamping groove (15) is arranged on one side of the fixed column (14), the bottom end of the fixed column (14) penetrates through the through hole and is fixedly connected with the base (1), a second fixed block (5) is fixed on one side of the top of the base (1) opposite to the positioning plate (2), a first sliding hole (17) and a second sliding hole (18) are arranged on one side of the second fixing block (5) in a penetrating way, a clamping plate (16) penetrates through the first sliding hole (17), one end of the clamping plate (16) is embedded into the clamping groove (15), a baffle plate (8) penetrates through the second sliding hole (18), one end of the baffle (8) is positioned at the top of the first fixed block (4), a plurality of grooves are formed in the bottom of the baffle (8), a plurality of rubber bumps are fixed on the top of the first fixing block (4), the rubber bumps are embedded into the corresponding grooves, and a connecting plate (10) is connected between the other end of the baffle (8) and the other end of the clamping plate (16).

2. A concrete shrinkage testing machine according to claim 1, characterized in that: a pull rod (11) is fixed on one side of the connecting plate (10), and the cross section of the pull rod (11) is of a C-shaped structure.

3. A concrete shrinkage testing machine according to claim 1, characterized in that: rubber pads are fixed on the inner walls of the first limiting groove (13) and the through hole, and the rubber pads are tightly attached to the surfaces of the fixing columns (14).

4. A concrete shrinkage testing machine according to claim 1, characterized in that: a spring groove (19) is formed in one side of the second fixing block (5), and a spring is connected between the inner wall of the spring groove (19) and the connecting plate (10).

5. A concrete shrinkage testing machine according to claim 1, characterized in that: a fixing groove (12) is formed in the inner wall of one side of the second sliding hole (18), and a retaining pile (9) is fixed to the top of one end of the baffle (8).

6. A concrete shrinkage testing machine according to claim 1, characterized in that: the top of adjusting stand (3) is provided with transparent protection shield (6) that the cross-section is "L" type structure, first through-hole (20) have been seted up in the top of transparent protection shield (6) run through, metal post (21) have been run through to the inside of first through-hole (20), the bottom and the regulation stand (3) fixed connection of metal post (21), the top of transparent protection shield (6) is provided with turning block (7), second through-hole (23) have been seted up in the top of turning block (7) run through, metal post (21) run through the inside of second through-hole (23) to through threaded connection between the inner wall with second through-hole (23).

7. The concrete shrinkage testing machine of claim 6, wherein: the section of the rotating block (7) is of a T-shaped structure, and anti-skid grains are arranged on the surface of the rotating block (7).

8. The concrete shrinkage testing machine of claim 6, wherein: the bottom of the rotating block (7) is fixed with a rubber ring (22), and the bottom of the rubber ring (22) is abutted against the surface of the transparent protection plate (6).