CN219799139U

CN219799139U - Auxiliary device for measuring chloride ion diffusion coefficient

Info

Publication number: CN219799139U
Application number: CN202320987400.0U
Authority: CN
Inventors: 李菲
Original assignee: Shaanxi Hongqi Testing Technology Co ltd
Current assignee: Shaanxi Hongqi Testing Technology Co ltd
Priority date: 2023-04-27
Filing date: 2023-04-27
Publication date: 2023-10-03
Anticipated expiration: 2033-04-27

Abstract

The utility model relates to an auxiliary device for measuring chloride ion diffusion coefficient, which relates to the technical field of concrete detection and comprises a base, a supporting component and a hanging component, wherein the supporting component is positioned on the base and comprises a supporting rod and a mounting disc, the supporting rod is vertically arranged, one end of the supporting rod is fixedly connected with the base, the other end of the supporting rod is fixedly connected with the mounting disc coaxially, the hanging component is provided with a plurality of hanging components which are uniformly distributed along the circumferential direction of the mounting disc at intervals, the hanging component is used for clamping a concrete test piece, and a plurality of soaking boxes which are in one-to-one correspondence with the hanging component are fixedly arranged on the base. The utility model has the effect of improving the detection efficiency of the chloride ion diffusion coefficient of the concrete.

Description

Auxiliary device for measuring chloride ion diffusion coefficient

Technical Field

The utility model relates to the technical field of concrete detection, in particular to an auxiliary device for measuring a chloride ion diffusion coefficient.

Background

Chloride ion induced steel bar tarnishing is a critical problem in the design of concrete durability and the life of the structure depends on the rate and concentration of chloride ions entering the concrete. The chloride ion diffusion coefficient is the most important index for measuring the chloride ion transmission speed in concrete.

Currently, there are many laboratory assays for determining chloride ion diffusion mobility coefficients, with natural diffusion methods being the more common method, which generally include the steps of: s1, placing a concrete test piece doped with chloride ions in deionized water for soaking; s2, detecting the concentration of chloride ions in the deionized water under different diffusion time after soaking for a preset time, and replacing the deionized water once after each detection; s3, determining the relation between the chloride ion concentration and the diffusion time according to the chloride ion concentration under different diffusion times; s4, calculating chloride ion diffusion flux according to the chloride ion one-dimensional diffusion model and the Fick second law; s5, calculating the diffusion coefficient of the chloride ions according to the relation between the concentration of the chloride ions and the diffusion time and the diffusion flux of the chloride ions.

For the related technology, multiple tests are usually required to be performed on multiple test pieces in the same batch under the same soaking time during the test, and then the chloride ion diffusion coefficients of the multiple test pieces in the same batch are averaged to obtain the chloride ion diffusion coefficient of the test piece.

Disclosure of Invention

The utility model provides an auxiliary device for measuring chloride ion diffusion coefficient in order to improve the detection efficiency of concrete chloride ion diffusion coefficient detection.

The auxiliary device for measuring the chloride ion diffusion coefficient provided by the utility model adopts the following technical scheme:

the utility model provides an auxiliary device is used in chloride ion diffusion coefficient survey, includes base, supporting component and suspension assembly, the supporting component is located on the base, the supporting component includes bracing piece and mounting disc, the vertical setting of bracing piece, bracing piece one end with base fixed connection, the other end with coaxial fixed connection of mounting disc, suspension assembly is equipped with a plurality of, a plurality of suspension assembly is along mounting disc circumference interval evenly distributed, suspension assembly is used for centre gripping concrete test piece, the fixed soaking box that is provided with a plurality of and suspension assembly one-to-one on the base.

Through adopting above-mentioned technical scheme, during the detection, add deionized water in soaking the incasement, then place respectively on hanging the subassembly with a plurality of concrete test pieces of same batch, through hanging the subassembly with concrete test piece centre gripping, then drive the concrete test piece through hanging the subassembly and descend to soaking the incasement and soak the diffusion, soak the scheduled time later, hanging the subassembly and drive the concrete test piece and rise, then detect the chloride ion concentration of the liquid in the soaking the incasement can. Through the auxiliary device, multiple groups of chloride ion diffusion coefficients of multiple test pieces in the same batch can be obtained in the same detection period, so that the detection period is effectively shortened, and the detection efficiency is effectively improved.

Optionally, the suspension assembly includes suspension cylinder and holder, suspension cylinder's cylinder body and mounting disc fixed connection, suspension cylinder's piston rod and holder are connected, the holder is used for the centre gripping concrete test piece.

Through adopting above-mentioned technical scheme, during the detection, carry out the centre gripping fixedly through the holder to the test piece, then drive the holder through hanging the cylinder and descend to drive the test piece and get into soaking the incasement and soak diffusion treatment, soak and reach the predetermined time after, hang the cylinder and drive the holder and rise, and then drive the test piece and remove outside the soaking case. The convenience in detection operation is effectively improved through the structure, and the independent hanging assembly is arranged, so that the soaking time of a plurality of test pieces can be independently controlled, and the applicability of the auxiliary device is improved.

Optionally, the holder includes roof, grip block and drive division, the roof with the piston rod of hanging the cylinder is connected, the grip block is equipped with two, the grip block with roof sliding connection, drive division is used for driving two grip blocks and slides towards the direction that is close to or keeps away from each other.

Through adopting above-mentioned technical scheme, during the detection, drive through drive division and link grip block orientation direction that is close to each other and slide, can press from both sides the concrete sample tightly through two grip block cooperations to be convenient for soak the operation, can keep the connection stability of concrete sample and hanging the subassembly through foretell grip block, and can be applicable to various size or irregularly shaped concrete sample, effectively improved auxiliary device's suitability.

Optionally, fixedly connected with slider on the grip block, offer the spout that matches with the slider on the roof, the slider is located the spout, drive portion includes two-way screw rod, two-way screw rod is located the spout, two-way screw rod's tip with spout end wall rotates to be connected, two-way screw rod both ends respectively with the slider threaded connection of two grip blocks.

Through adopting above-mentioned technical scheme, when needs carry out the centre gripping to the concrete sample, rotate two-way screw rod, drive two grip blocks and remove towards the direction that is close to each other when two-way screw rod rotates, two grip block cooperation can press from both sides the concrete sample tight. The driving part has the advantage of simple and convenient operation, thereby being beneficial to improving the detection efficiency.

Optionally, the clamping plate deviates from the one end fixedly connected with of roof and holds the board.

Through adopting above-mentioned technical scheme, set up the effect that the board can play the bearing to concrete test piece bottom to the clamping piece has further improved the stability to concrete test piece centre gripping.

Optionally, the two sides of the bearing plate along the axial direction of the bidirectional screw rod are respectively fixedly connected with a side plate.

Through adopting above-mentioned technical scheme, set up the curb plate and can avoid concrete to slide on the joint board to further improved the stability to the concrete centre gripping.

Optionally, the support rod is rotatably connected with the base, and the support assembly further comprises a driving member for driving the support rod to rotate.

Through adopting above-mentioned technical scheme, set up pivoted bracing piece and be convenient for make the concrete test piece remove to soaking directly over the case to when centre gripping concrete test piece, operating personnel is fixed the back with a concrete test piece and a suspension assembly, and through driving the bracing piece rotation, until next suspension assembly rotates before operating personnel, then continue to install the concrete test piece can, foretell structure has effectively strengthened auxiliary device in the convenience of use.

Optionally, the driving piece includes motor, driving gear and driven gear, the motor is used for the drive the driving gear rotates, driven gear with bracing piece coaxial fixed connection, driven gear with the driving gear meshing.

Through adopting above-mentioned technical scheme, when needs drive the mounting disc and rotate, start the motor, the output shaft of motor drives the driving gear and rotates, drives driven gear and rotates when the driving gear rotates, drives the bracing piece and rotates when driven gear rotates, and then drives the mounting disc and rotate. The driving piece has the advantages of simple structure, reliable transmission and convenient maintenance.

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

1. according to the utility model, the plurality of hanging components and the soaking box are arranged, so that a plurality of test pieces in the same batch can be detected simultaneously in the same detection period, and then a plurality of groups of chloride ion diffusion coefficients of the test pieces in the same batch can be obtained, thereby effectively shortening the detection period and effectively improving the detection efficiency;

2. according to the utility model, the plurality of hanging components are arranged to respectively and independently control the soaking time of a plurality of test pieces, so that the applicability of the auxiliary device is improved;

3. the utility model is provided with the support rods which are rotationally connected, and the support rods drive the mounting plate to rotate, so that the hanging assembly can be driven to rotate, and the convenience of the auxiliary device in the use process is effectively improved.

Drawings

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

fig. 2 is a schematic structural view of a clamping member according to an embodiment of the present utility model.

Reference numerals: 1. a base; 11. a soaking box; 111. a liquid outlet pipe; 112. a valve; 2. a support assembly; 21. a support rod; 22. a driving member; 221. a motor; 222. a drive gear; 223. a driven gear; 23. a mounting plate; 3. a hanging assembly; 31. hanging an air cylinder; 32. a clamping member; 321. a top plate; 3211. a chute; 322. a clamping plate; 3221. a receiving plate; 3222. a side plate; 3223. a slide block; 323. a bidirectional screw; 324. and a hand wheel.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-2.

The embodiment of the utility model discloses an auxiliary device for measuring a chloride ion diffusion coefficient. Referring to fig. 1, an auxiliary device for measuring a chloride ion diffusion coefficient includes a base 1, a support member 2, and a hanging member 3.

Referring to fig. 1, a support assembly 2 is located on a base 1, the support assembly 2 includes a support rod 21, a driving member 22 and a mounting plate 23, the support rod 21 is rotationally connected with the base 1, the driving member 22 includes a motor 221, a driving gear 222 and a driven gear 223, a casing of the motor 221 is fixedly connected with the base 1 by screws, an output shaft of the driving gear 222 and the motor 221 is fixedly connected by keys coaxially, the driven gear 223 is welded with the support rod 21 coaxially, the driven gear 223 is meshed with the driving gear 222, and the mounting plate 23 is fixedly connected with one end of the support rod 21, which is away from the base 1 coaxially.

Referring to fig. 1, a plurality of hanging assemblies 3 are provided, and the plurality of hanging assemblies 3 are uniformly distributed along the circumferential direction of the mounting plate 23, in this embodiment, four hanging assemblies 3 are provided, and in other embodiments, the number of hanging assemblies 3 can be freely selected according to the size of the mounting plate 23 or the actual detection requirement, and the number is not limited by the present utility model.

Referring to fig. 1 and 2, the hanging assembly 3 is located at one side of the mounting plate 23 near the base 1, the hanging assembly 3 includes a hanging cylinder 31 and a clamping member 32, the cylinder body of the hanging cylinder 31 is fixedly connected with the mounting plate 23 by screws, and the telescopic axis of the hanging cylinder 31 is vertically arranged.

Referring to fig. 1 and 2, the clamping member 32 includes a top plate 321, a clamping plate 322 and a driving part, the top plate 321 is welded with a piston rod of the hanging cylinder 31, a sliding groove 3211 is formed in one side, away from the hanging cylinder 31, of the top plate 321 along the long side direction, two clamping plates 322 are arranged, one end of each clamping plate 322 is welded with a sliding block 3223, the sliding blocks 3223 are slidably connected in the sliding groove 3211, one end, away from the top plate 321, of each clamping plate 322 is welded with a horizontally arranged receiving plate 3221, and two sides, along the axial direction of the bidirectional screw 323, of each receiving plate 3221 are respectively welded with side plates 3222.

Referring to fig. 1 and 2, the driving part includes a bidirectional screw 323, the bidirectional screw 323 is located in the sliding groove 3211, an end of the bidirectional screw 323 is rotatably connected with an end wall of the sliding groove 3211, and the bidirectional screw 323 penetrates through two sliding blocks 3223 located in the sliding groove 3211 and is in threaded connection with the sliding blocks 3223. One end of the bidirectional screw 323 extends out of the sliding groove 3211, and one end of the bidirectional screw 323 extending out of the sliding groove 3211 is coaxially and fixedly connected with a hand wheel 324.

Referring to fig. 1 and 2, four soaking boxes 11 are arranged on a base 1 at equal intervals, the soaking boxes 11 are located under a hanging assembly 3, a liquid outlet pipe 111 is fixedly communicated with the bottom of each soaking box 11, and a valve 112 is fixedly communicated with the liquid outlet pipe 111.

The implementation principle of the auxiliary device for measuring the chloride ion diffusion coefficient of the embodiment of the utility model is as follows: before detection, deionized water is added into the soaking box 11, then a plurality of concrete test pieces of the same batch are respectively placed on the bearing plates 3221 of the hanging assemblies 3, then the bidirectional screw rods 323 are rotated, the clamping plates 322 are driven to clamp the concrete test pieces, then the clamping pieces 32 are driven to descend through the hanging air cylinders 31, so that the test pieces are driven to enter the soaking box 11 to be soaked and diffused, after the soaking is carried out for a preset time, the hanging air cylinders 31 drive the clamping pieces 32 to ascend, and the test pieces are driven to move out of the soaking box 11; then, the concentration of chloride ions in the liquid in the immersing tank 11 is detected, and the diffusion coefficient of chloride ions is calculated.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. An auxiliary device for measuring a chloride ion diffusion coefficient, characterized by: including base (1), supporting component (2) and hanging component (3), supporting component (2) are located on base (1), supporting component (2) are including bracing piece (21) and mounting disc (23), bracing piece (21) are vertical to be set up, bracing piece (21) one end with base (1) are connected, the other end with coaxial fixed connection of mounting disc (23), hanging component (3) are equipped with a plurality ofly, a plurality of hanging component (3) follow mounting disc (23) circumference interval evenly distributed, hanging component (3) are used for the centre gripping concrete test piece, fixed a plurality of soaking boxes (11) with hanging component (3) one-to-one that are provided with on base (1).

2. The auxiliary device for measuring a chloride ion diffusion coefficient according to claim 1, wherein: the hanging assembly (3) comprises a hanging air cylinder (31) and a clamping piece (32), wherein a cylinder body of the hanging air cylinder (31) is fixedly connected with the mounting plate (23), a piston rod of the hanging air cylinder (31) is connected with the clamping piece (32), and the clamping piece (32) is used for clamping a concrete test piece.

3. The auxiliary device for measuring a chloride ion diffusion coefficient according to claim 2, wherein: the clamping piece (32) comprises a top plate (321), clamping plates (322) and a driving part, wherein the top plate (321) is connected with a piston rod of the hanging cylinder (31), the clamping plates (322) are arranged in two, the clamping plates (322) are in sliding connection with the top plate (321), and the driving part is used for driving the two clamping plates (322) to slide towards the direction close to or far away from each other.

4. An auxiliary device for measuring a chloride ion diffusion coefficient according to claim 3, wherein: fixedly connected with slider (3223) on grip block (322), spout (3211) with slider (3223) matching have been seted up on roof (321), slider (3223) are located spout (3211), drive portion includes bi-directional screw (323), bi-directional screw (323) are located spout (3211), the tip of bi-directional screw (323) with spout (3211) end wall rotates to be connected, bi-directional screw (323) both ends respectively with slider (3223) threaded connection of two grip block (322).

5. The auxiliary device for measuring a chloride ion diffusion coefficient according to claim 4, wherein: one end of the clamping plate (322) deviating from the top plate (321) is fixedly connected with a receiving plate (3221).

6. An auxiliary device for measuring a chloride ion diffusion coefficient according to claim 5, wherein: the bearing plate (3221) is fixedly connected with side plates (3222) along two axial sides of the bidirectional screw rod (323).

7. The auxiliary device for measuring a chloride ion diffusion coefficient according to claim 1, wherein: the support rod (21) is rotationally connected with the base (1), and the support assembly (2) further comprises a driving piece (22) for driving the support rod (21) to rotate.

8. The auxiliary device for measuring a chloride ion diffusion coefficient according to claim 7, wherein: the driving piece (22) comprises a motor (221), a driving gear (222) and a driven gear (223), wherein the motor (221) is used for driving the driving gear (222) to rotate, the driven gear (223) is fixedly connected with the supporting rod (21) in a coaxial mode, and the driven gear (223) is meshed with the driving gear (222).