CN210665751U

CN210665751U - Concrete block shrinkage test device

Info

Publication number: CN210665751U
Application number: CN201921634799.4U
Authority: CN
Inventors: 曹伟明; 曹世仁; 李胜
Original assignee: Guangdong Dongfang Concrete Co Ltd
Current assignee: Guangdong Dongfang Concrete Co Ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-06-02
Anticipated expiration: 2029-09-27

Abstract

The utility model relates to a concrete block shrinkage test device, has solved prior art when the test, influences the stability of concrete block easily to influence measuring result's problem, it is including the test box that is used for placing the concrete block, the test box bottom surface is equipped with two at least driving rollers that are parallel arrangement along test box bottom surface length direction, the amesdial one that is used for the test is installed to test box one end, the test box in sliding connection has and is used for pressing from both sides tightly on the parallel lateral wall of driving roller the clamping device of concrete block. The utility model discloses have and press from both sides tight concrete piece through clamping device to the stability of concrete piece when guaranteeing the test guarantees the accurate effect of measuring result.

Description

Concrete block shrinkage test device

Technical Field

The utility model belongs to the technical field of the technique that the concrete performance detected and specifically relates to a concrete piece shrinkage test device is related to.

Background

At present, concrete is a necessary material in the industries of construction and the like. When the concrete is changed in the natural environment, expansion and contraction phenomena can occur, and the expansion and contraction of the concrete can cause cracking of a wall body, so that the test of the expansion and contraction of the concrete is very important.

The utility model discloses a current chinese utility model patent that grant bulletin number is CN207114544U discloses a concrete piece shrinkage test device, the on-line screen storage device comprises a base, base length direction's both ends are provided with first supporting seat and second supporting seat respectively, be provided with two at least driving rollers with the lower surface contact of concrete piece between first supporting seat and the second supporting seat, the length direction evenly distributed of base is followed to the driving roller, the driving roller is connected with the upper surface rotation of base, be provided with the fixed knot who abuts with the concrete on the first supporting seat and construct, be provided with the digital display amesdial with the concrete ejector pin butt on the second supporting seat.

The above prior art solutions have the following drawbacks: because the ejector pin needs pre-buried in the concrete piece in advance among the above-mentioned scheme to with concrete piece integrated into one piece, the ejector pin is more troublesome when pouring in the concrete piece, and at the pouring concrete in-process, leads to the ejector pin slope very easily, thereby ejector pin and passageway can not completely cooperate, when the test, influence the stability of concrete piece easily, thereby influence measuring result.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a concrete block shrinkage test device, its advantage is tight concrete block through clamping device clamp to the stability of concrete block when guaranteeing the test guarantees measuring result's accuracy.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a concrete block shrinkage test device, is including the test box that is used for placing the concrete block, the test box bottom surface is equipped with two at least driving rollers that are parallel arrangement along test box bottom surface length direction, the amesdial one that is used for the test is installed to test box one end, the test box in sliding connection has the clamping device who is used for pressing from both sides tight on the parallel lateral wall of driving roller the concrete block.

Through adopting above-mentioned technical scheme, press from both sides tight concrete piece through clamping device to the stability of concrete piece when guaranteeing the test guarantees measuring result's accuracy.

The utility model discloses further set up to: clamping device includes that two are relative setting and sliding connection in the splint of test box, reciprocal lead screw, handle one, reciprocal lead screw one end is passed and is penetrated two splint and rotation are connected on the test box, reciprocal lead screw other end is passed test box lateral wall fixed connection handle one, reciprocal lead screw and two splint threaded connection, one of them splint be equipped with reciprocal lead screw complex positive thread hole, another splint be equipped with reciprocal lead screw complex negative thread hole.

Through adopting above-mentioned technical scheme, twist grip one drives reciprocal lead screw and rotates, makes two splint be close to each other to press from both sides tight concrete piece, press from both sides tightly effectually, stability is high, convenient operation can adapt to not unidimensional concrete piece simultaneously.

The utility model discloses further set up to: and the test box is provided with a limiting part for limiting the rotation of the handle.

Through adopting above-mentioned technical scheme, can prevent that clamping device is not hard up to influence the stability of concrete piece, thereby influence the testing result.

The utility model discloses further set up to: the locating part includes screw thread post, fly leaf, fixed plate, nut, fixed plate one end fixed connection be in on the screw thread post, the fixed plate other end extends to handle below and butt in the handle one, the fly leaf cover is established on the screw thread post, the nut with screw thread post threaded connection just is located the fly leaf outside.

Through adopting above-mentioned technical scheme, press from both sides tight back that finishes, swivel nut makes the nut promote the fly leaf and is close to handle one, mutually supports with the fixed plate to through the rotation of frictional force restriction handle one, convenient operation, the restriction is stable, only needs swivel nut can control handle one simultaneously.

The utility model discloses further set up to: and a second dial indicator for testing is arranged above the testing box.

By adopting the technical scheme, the vertical expansion and contraction conditions of the concrete block can be tested, and the accuracy of the measurement result is improved.

The utility model discloses further set up to: the test box is characterized in that supports are arranged at two ends of the test box, slide bars are arranged on the supports, two ends of the slide bars are connected to the two supports in a vertical sliding mode respectively, and the dial indicator II is connected to the slide bars.

Through adopting above-mentioned technical scheme, then the slide bar can follow the support and reciprocate to do not influence the concrete piece and put into the test box.

The utility model discloses further set up to: and the dial indicator II is fixedly connected with a sleeve for sleeving the sliding rod, and the sleeve has elasticity and is in interference fit with the sliding rod.

Through adopting above-mentioned technical scheme, then amesdial two can slide on the slide bar to can realize the multiple spot test of concrete piece upper surface, improve measuring result's accurate nature, sleeve and slide bar interference fit simultaneously, then sleeve and slide bar have certain stability, thereby amesdial two is difficult for sliding when guaranteeing to measure.

The utility model discloses further set up to: the support is provided with a first driving assembly used for driving the sliding rod to slide up and down, the first driving assembly comprises a first screw rod and a second handle, threads at one end of the first screw rod penetrate through the sliding rod to be rotatably connected onto the support, and the other end of the first screw rod is fixedly connected with the second handle.

Through adopting above-mentioned technical scheme, the handle two is rotated, then can drive screw rod one and rotate to realize the lift of slide bar, screw rod one has certain limiting displacement, can prevent that the slide bar from because gravity gliding.

To sum up, the utility model discloses a beneficial technological effect does: the concrete block is clamped through the clamping device, so that the stability of the concrete block during testing is guaranteed, the accuracy of the measuring result is guaranteed, the concrete block with different sizes can be adapted, the multi-point testing of the upper surface of the concrete block is achieved, and the accuracy of the measuring result is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the overall structure of the present invention.

Fig. 3 is an enlarged view of the area a in fig. 2.

Fig. 4 is a schematic diagram of the overall structure of the present invention.

In the figure, 1, test cartridge; 2. a driving roller; 3. a clamping device; 4. a splint; 5. a reciprocating screw; 6. a first handle; 7. a limiting member; 8. a threaded post; 9. a fixing plate; 10. a nut; 11. a support table; 12. a slide plate; 13. a connecting plate; 14. a first dial indicator; 15. a second driving component; 16. a second screw; 17. a third handle; 18. a support; 19. a slide bar; 20. a chute; 21. a first driving component; 22. a first screw rod; 23. a second handle; 24. a sleeve; 25. a second dial indicator; 26. a concrete block; 27. a movable plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a concrete block 26 shrinkage test device, including the test box 1 that is used for placing concrete block 26, 1 bottom surface of test box is equipped with two piece at least and is parallel arrangement's driving roller 2 along 1 bottom surface length direction of test box, and 1 one end of test box sliding connection has the clamping device 3 that is used for pressing from both sides tight concrete block 26 on the parallel lateral wall of driving roller 2.

Clamping device 3 includes that two are relative setting and sliding connection splint 4 in 1 one end of test box, reciprocal lead screw 5, a handle 6, reciprocal lead screw 5 one end is passed two splint 4 and is rotated and connect at 1 inner wall of test box, reciprocal lead screw 5 other end is passed 1 lateral wall fixed connection handle 6 of test box, reciprocal lead screw 5 and two splint 4 threaded connection, one of them splint 4 is equipped with and reciprocates 5 complex positive screw hole of lead screw, another splint 4 is equipped with and reciprocates 5 complex anti-thread hole of lead screw.

Referring to fig. 2 and 3, the test box 1 is provided with a limiting part 7 for limiting rotation of the first handle 6, the limiting part 7 includes a threaded column 8, a movable plate 27, a fixed plate 9 and a nut 10, one end of the fixed plate 9 is fixedly connected to the threaded column 8, the other end of the fixed plate 9 extends to the lower side of the first handle 6 and abuts against the first handle 6, the movable plate 27 is sleeved on the threaded column 8, and the nut 10 is in threaded connection with the threaded column 8 and located on the outer side of the movable plate 27.

Referring to fig. 4, fixedly connected with brace table 11 is gone up to the one end lateral wall that splint 4 were kept away from to test box 1, and sliding connection has slide 12 on brace table 11, and slide 12 keeps away from the inboard perpendicular fixedly connected with connecting plate 13 of one end of brace table 11, fixedly connected with amesdial one 14 on the connecting plate 13, and amesdial one 14's test rod is towards test box 1.

The second driving assembly 15 for driving the sliding plate 12 to slide is arranged on the test box 1, the second driving assembly 15 comprises a second screw rod 16 and a third handle 17, one end of the second screw rod 16 penetrates through the sliding plate 12 to be connected onto the side wall of the test box 1 in a rotating mode, the third handle 17 is fixedly connected to the other end of the second screw rod 16, and the second screw rod 16 is in threaded connection with the sliding plate 12.

Referring to fig. 2, two ends of the test box 1 are vertically and fixedly connected with supports 18, the supports 18 are provided with slide bars 19, two ends of the slide bars 19 are respectively connected to the two supports 18 in a vertical sliding manner, the supports 18 are provided with slide grooves 20 for the slide bars 19 to slide, the supports 18 are provided with first driving assemblies 21 for driving the slide bars 19 to slide, each first driving assembly 21 comprises a first screw rod 22 and a second handle 23, one end of each first screw rod 22 penetrates through the slide bars 19 in a threaded manner and is rotatably connected to the lower end of the support 18, and the other end of each first screw rod 22 penetrates through the second handle 23 fixedly.

The sliding rod 19 is slidably connected with a sleeve 24 for sleeving the sliding rod 19, the sleeve 24 has elasticity, and the sleeve 24 and the sliding rod 19 are in interference fit.

And a second dial indicator 25 is fixedly connected to the sleeve 24, and a testing rod of the second dial indicator 25 faces the testing box 1.

The implementation principle of the embodiment is as follows: during testing, the poured concrete block 26 is placed into the testing box 1, the position of the concrete block 26 is adjusted, the first handle 6 is rotated to drive the reciprocating screw 5 to rotate, the two clamping plates 4 are made to approach each other, and the concrete block 26 is clamped tightly. And then, rotating the third handle 17 to drive the second screw 16 to rotate, enabling the testing rod of the first dial indicator 14 to abut against the side wall of the concrete block 26, then rotating the second handle 23 to drive the first screw 22 to rotate, enabling the sliding rod 19 to move downwards, enabling the testing rod of the second dial indicator 25 to abut against the upper surface of the concrete block 26, and observing the readings of the first dial indicator 14 and the second dial indicator 25 after a period of time.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a concrete block shrinkage test device, is including test box (1) that is used for placing concrete block (26), test box (1) bottom surface is equipped with two at least driving roller (2) that are parallel arrangement along test box (1) bottom surface length direction, amesdial (14) that are used for the test are installed to test box (1) one end, its characterized in that: and the test box (1) is connected with a clamping device (3) used for clamping the concrete block (26) on the side wall parallel to the transmission roller (2) in a sliding manner.

2. A concrete block shrinkage test apparatus according to claim 1, wherein: clamping device (3) are relative setting and sliding connection including two and are in splint (4), reciprocal lead screw (5), handle (6) of test box (1), reciprocal lead screw (5) one end is passed and is penetrated two splint (4) and rotate to be connected on test box (1), reciprocal lead screw (5) other end is passed test box (1) lateral wall fixed connection handle (6), reciprocal lead screw (5) and two splint (4) threaded connection, one of them splint (4) be equipped with reciprocal lead screw (5) complex positive thread hole, another splint (4) be equipped with reciprocal lead screw (5) complex reverse thread hole.

3. A concrete block shrinkage test apparatus according to claim 2, wherein: and the test box (1) is provided with a limiting part (7) for limiting the rotation of the first handle (6).

4. A concrete block shrinkage test apparatus according to claim 3, wherein: locating part (7) includes screw thread post (8), fly leaf (27), fixed plate (9), nut (10), fixed plate (9) one end fixed connection be in on screw thread post (8), fixed plate (9) other end extends to handle (6) below and butt in handle (6), fly leaf (27) cover is established on screw thread post (8), nut (10) with screw thread post (8) threaded connection just is located the fly leaf (27) outside.

5. A concrete block shrinkage test apparatus according to claim 1, wherein: and a second dial indicator (25) for testing is arranged above the test box (1).

6. A concrete block shrinkage test device according to claim 5, characterized in that: the test box is characterized in that supports (18) are arranged at two ends of the test box (1), slide rods (19) with two ends respectively connected to the two supports (18) in a vertical sliding mode are arranged on the supports (18), and the dial indicator II (25) is connected to the slide rods (19).

7. The concrete block shrinkage test device of claim 6, wherein: and a sleeve (24) used for sleeving the sliding rod (19) is fixedly connected to the second dial indicator (25), and the sleeve (24) has elasticity and is in interference fit with the sliding rod (19).

8. The concrete block shrinkage test device of claim 6, wherein: be equipped with on support (18) and be used for the drive slide bar (19) gliding drive assembly (21) from top to bottom, drive assembly (21) include screw rod one (22), handle two (23), screw rod one (22) one end screw thread passes slide bar (19) rotate to be connected on support (18), screw rod one (22) other end fixed connection handle two (23).