阅读说明：本技术 一种用于检测混凝土外加剂适应性的装置 (Device for detecting adaptability of concrete admixture ) 是由 徐东 龚宙平 于 2019-10-19 设计创作，主要内容包括：本发明公开了一种用于检测混凝土外加剂适应性的装置,涉及混凝土检测领域,包括底座、支撑架,支撑架上并排设置的多个储料仓,储料仓上连通设置有试验槽；试验槽的下端呈开口状设置,并且底座上设置有连通试验槽的收纳箱；试验槽的两侧均设置有滑槽,滑槽内滑动连接有滑块,滑块上设置有锁定部；滑块的外壁端竖直设有支撑杆,一对支撑杆的上端之间水平转动连接有跨试验槽的安装杆,支撑杆上设有用于固定安装杆的固定部；安装板上竖直设置有多个刮板,多个刮板用于分别嵌入多个试验槽内。本发明具有以下优点和效果：通过设置高自动化运动的刮板,实现试验槽内壁的自动清洁,降低了试验人员的工作强度,使得装置的清洁过程更加轻松方便。(The invention discloses a device for detecting the adaptability of a concrete admixture, which relates to the field of concrete detection and comprises a base and a support frame, wherein a plurality of storage bins are arranged on the support frame side by side, and test grooves are communicated on the storage bins; the lower end of the test groove is arranged in an opening shape, and a containing box communicated with the test groove is arranged on the base; sliding grooves are formed in two sides of the test groove, sliding blocks are connected in the sliding grooves in a sliding mode, and locking portions are arranged on the sliding blocks; the outer wall end of the sliding block is vertically provided with a supporting rod, the upper ends of the supporting rods are horizontally and rotatably connected with an installation rod crossing the test groove, and the supporting rod is provided with a fixing part for fixing the installation rod; a plurality of scrapers are vertically arranged on the mounting plate and are used for being respectively embedded into the test grooves. The invention has the following advantages and effects: through setting up the scraper blade of high automated movement, realize the self-cleaning of test cell inner wall, reduced testing personnel's working strength for the clean process of device is light convenient more.)

1. A device for detecting the adaptability of a concrete admixture comprises a base (1) and a support frame (2) arranged on the base (1), wherein a plurality of storage bins (3) are arranged on the support frame (2) side by side, and each storage bin (3) is communicated with a test groove (4);

the method is characterized in that: the lower end of the test tank (4) is arranged in an open manner, a containing box (11) with an open upper end is arranged on the base (1), and the containing box (11) is positioned below the lower end of the test tank (4);

sliding grooves (43) arranged along the length direction of the test groove (4) are formed in two sides of the test groove, a sliding block (44) is connected in each sliding groove (43) in a sliding mode, a locking portion (5) is arranged on each sliding block (44), and the locking portions (5) are used for fixing the sliding blocks (44) in the upper ends of the sliding grooves (43);

a supporting rod (45) is vertically arranged at one end, positioned outside the sliding groove (43), of the sliding block (44), an installation rod (46) spanning the test groove (4) is horizontally arranged between the upper ends of the pair of supporting rods (45), the installation rod (46) is rotatably connected to the supporting rods (45), and a fixing part (6) used for fixing the installation rod (46) is arranged on each supporting rod (45);

be provided with a plurality of scrapers (7) on the mounting panel, it is a plurality of scraper blade (7) are used for imbedding respectively a plurality ofly in test tank (4), and the both sides of scraper blade (7) are contradicted the lateral wall of test tank (4), and the lower terminal surface is contradicted the diapire of test tank (4).

2. The device for detecting the adaptability of the concrete admixture according to claim 1, wherein: a cavity (441) is arranged in the sliding block (44), a through hole (442) communicated with the interior of the cavity (441) is arranged on the outer wall of the sliding block (44), the locking part (5) comprises a driving rod (51) connected with the through hole (442) in a sliding mode, and the driving rod (51) is connected with the through hole (442) in a threaded mode;

a knob (52) is arranged at one end, located outside the cavity (441), of the driving rod (51), a wedge-shaped locking block (53) is arranged at one end, located inside the cavity (441), of the driving rod (51), and the locking block (53) is arranged in a tapered mode from one end, away from the driving rod (51), to the other end of the driving rod;

the side walls of two sides of the sliding block (44) are respectively provided with a locking hole (443) communicated with the inside of the cavity (441), the locking hole (443) is connected with a locking rod (444) in a sliding manner, one end, close to the locking block (53), of the locking rod (444) is obliquely provided with a guide surface (445) which is abutted against the side wall of the locking block (53), and the inner walls of the upper ends of two sides of the sliding groove (43) are respectively provided with a locking groove for the locking rod (444) to be inserted;

the locking rod (444) is located one end outer wall in cavity (441) is provided with baffle (446), the cover is equipped with on locking rod (444) is located inside return spring (447) of cavity (441), and return spring (447) be located between cavity (441) inner wall and baffle (446).

3. The device for detecting the adaptability of the concrete admixture according to claim 1, wherein: fixed part (6) are including dead lever (61) of vertical setting, dead lever (61) vertical sliding connection in the upper end inner wall of bracing piece (45), dead lever (61) are located the top of installation pole (46), and the outer wall of installation pole (46) is provided with the confession open groove (461) and close groove (462) that dead lever (61) was pegged graft.

4. The device for detecting the adaptability of the concrete admixture according to claim 3, wherein: the outer wall of the lower end of the fixed rod (61) is provided with a circle of elastic clamping ring (62), and the inner walls of the opening groove (461) and the closing groove (462) are provided with clamping grooves for embedding the clamping ring (62).

5. The device for detecting the adaptability of the concrete admixture according to claim 1, wherein: one side of the scraper (7) departing from the containing box (11) is provided with cleaning cloth (72), and the cleaning cloth (72) is abutted against the side wall and the bottom wall of the test groove (4).

6. The device for detecting the adaptability of the concrete admixture according to claim 5, wherein: the upper end face of the scraper (7) is provided with a water tank (73), the side wall of the upper end of one side, deviating from the cleaning cloth (72), of the scraper (7) is provided with a drain pipe (75), the drain pipe (75) is communicated with the water tank (73), the lower end face of the drain pipe (75) is uniformly provided with a plurality of water spray pipes (76), and the water spray pipes (76) are aligned to the bottom wall of the test tank (4).

7. The device for detecting the adaptability of the concrete admixture according to claim 6, wherein: a branch pipe (77) is arranged in the middle of the water spray pipe (76), and the branch pipe (77) is bent towards the scraper (7).

8. The device for detecting the adaptability of the concrete admixture according to claim 7, wherein: fan-shaped nozzles (78) are arranged on the water spraying pipe (76) and the branch pipe (77).

9. The device for detecting the adaptability of the concrete admixture according to claim 1, wherein: the side walls of the upper ends of the two sides of the scraper (7) are respectively provided with an elastic plate (71), and the elastic plates (71) are used for pressing the upper end face of the test groove (4).

Technical Field

The invention relates to the field of concrete detection, in particular to a device for detecting the adaptability of a concrete admixture.

Background

Concrete admixtures are substances added for improving and adjusting the properties of concrete, and since the kinds and amounts of the admixtures are different for each kind of concrete, a concrete admixture suitability test is generally conducted before the admixtures are applied. The main principle is to test the flowing distance of the cement paste or cement slurry added with the additive so as to judge the adaptability of the concrete to the additive.

Chinese patent CN106198940A discloses a device and method for detecting adaptability of concrete admixture, the device includes a storage bin, an inclined chute and a horizontal chute, the storage bin, the inclined chute and the horizontal chute are sequentially communicated to form a test through groove for detecting fluidity of slurry, at least one partition board is detachably arranged in the test through groove, the partition board simultaneously runs through the storage bin, the inclined chute and the horizontal chute to separate the test through groove into at least two test grooves.

After the device is used, the clean cement slurry or cement slurry in the test groove is shoveled by manually holding the spatula, and then the test groove is wiped. The cleaning process of the testing device is complicated, the working strength of testing personnel is increased, and improvement is needed.

Disclosure of Invention

The invention aims to provide a device for detecting the adaptability of a concrete admixture, which has the effect of convenient cleaning.

The technical purpose of the invention is realized by the following technical scheme: a device for detecting the adaptability of a concrete admixture comprises a base and a support frame arranged on the base, wherein a plurality of storage bins are arranged on the support frame side by side, and each storage bin is communicated with a test groove; the lower end of the test groove is arranged in an opening shape, a containing box with an opening at the upper end is arranged on the base, and the containing box is positioned below the lower end of the test groove; sliding chutes arranged along the length direction of the test groove are arranged on two sides of the test groove, a sliding block is connected in each sliding chute in a sliding mode, a locking portion is arranged on each sliding block, and the locking portions are used for fixing the sliding blocks in the upper ends of the sliding chutes; a supporting rod is vertically arranged at one end, positioned outside the sliding groove, of the sliding block, an installation rod spanning the test groove is horizontally arranged between the upper ends of the pair of supporting rods, the installation rod is rotatably connected to the supporting rods, and a fixing part for fixing the installation rod is arranged on each supporting rod; the vertical a plurality of scrapers that are provided with on the mounting panel, it is a plurality of the scraper blade is used for imbedding respectively in the test groove, and the both sides of scraper blade are contradicted the lateral wall of test groove, and the lower terminal surface is contradicted the diapire of test groove.

Through adopting above-mentioned technical scheme, after finishing to cement paste or cement mud detection, remove the fixed part earlier, then drive installation pole drives scraper blade synchronous revolution, when the scraper blade is in vertical state, in the scraper blade embedding test groove to conflict test groove's lateral wall and diapire. And then the fixing part is locked, so that the mounting rod and the scraper can be fixed. Then the locking part is released, at the moment, under the action of the gravity of the scraper blade, the scraper blade drives the mounting rod to slide downwards, and the mounting rod drives the supporting rod and the sliding block to synchronously slide downwards. Meanwhile, the scraper is utilized to scrape the residues on the side wall and the bottom wall of the test groove, and then the residues gradually slide into the containing box to finish the cleaning of the test groove. After cleaning, the fixing part is removed again, then the mounting rod is driven to drive the scraper to rotate synchronously until the scraper is separated from the test groove and is in a horizontal state, the fixing part is locked, and the mounting rod and the scraper are fixed. Then the installation rod is driven to drive the supporting rod and the sliding block to slide upwards until the sliding block slides to the upper end position of the sliding groove, and the sliding block is fixed by the locking part, so that the whole device can be reset. Consequently, through the scraper blade that sets up high automated movement, realize the self-cleaning and the quick cleanness of test cell inner wall, by a wide margin reduced tester's working strength, make the clean process of whole device more light convenient simultaneously.

The invention is further provided with: a cavity is arranged in the slider, a through hole communicated with the interior of the cavity is formed in the outer wall of the slider, the locking part comprises a driving rod connected to the through hole in a sliding mode, and the driving rod is connected to the through hole in a threaded mode; a knob is arranged at one end of the driving rod, which is positioned outside the cavity, a wedge-shaped locking block is arranged at one end of the driving rod, which is positioned inside the cavity, and the locking block is arranged in a tapered manner from one end, which deviates from the driving rod, to the other end; the side walls of the two sides of the sliding block are respectively provided with a locking hole communicated with the inside of the cavity, a locking rod is connected in the locking hole in a sliding manner, one end, close to the locking block, of the locking rod is obliquely provided with a guide surface which is abutted against the side wall of the locking block, and the inner walls of the upper ends of the two sides of the sliding chute are respectively provided with a locking groove for the locking rod to be inserted; the outer wall of one end, located in the cavity, of the locking rod is provided with a baffle, a return spring located in the cavity is sleeved on the locking rod, and the return spring is located between the inner wall of the cavity and the baffle.

By adopting the technical scheme, when the locking part is released, the knob is rotated to drive the driving rod to rotate, and at the moment, the driving rod is gradually screwed into the through hole and controls the locking block to move synchronously. At the same time, the locking block gradually disengages from the locking lever, and the return spring gradually springs open. When the reset spring is bounced to be opened, the reset spring drives the baffle to be close to the locking block, and the baffle drives the locking rod to slide inwards and gradually separate from the locking groove. And releasing the locking part until the locking rod is completely separated from the locking groove. When the locking part is locked, the knob is rotated reversely, and the knob drives the driving rod to rotate synchronously and drives the locking block to slide reversely. Meanwhile, the locking block is utilized to drive the locking rod to gradually slide outwards through the matching of the side wall of the locking block and the guide surface. And at the moment, the locking rod drives the baffle plate to synchronously move and presses the return spring to compress. Until the locking rod is inserted into the locking groove in the sliding groove, the locking of the locking part can be realized. The locking part has a simple structure, and the operation process is easy and convenient, so that the rapid locking and unlocking of the sliding block are realized.

The invention is further provided with: the fixing part comprises a vertically arranged fixing rod, the fixing rod is vertically and slidably connected to the inner wall of the upper end of the supporting rod, the fixing rod is located above the mounting rod, and an opening groove and a closing groove for the fixing rod to be inserted are formed in the outer wall of the mounting rod.

Through adopting above-mentioned technical scheme, when the scraper blade is in the horizontality, open the groove on the installation pole and aim at the dead lever, when the scraper blade is in vertical state, close the groove on the installation pole and aim at the dead lever. Therefore, the fixing rod is driven to move downwards or upwards, so that the fixing rod is inserted into or separated from the opening groove or the closing groove, the fixing and the releasing of the mounting rod can be realized, and the locking and the releasing of the fixing part are realized. The structure of the fixing part is simple, and the operation process is easy and convenient, so that the mounting rod can be quickly locked and released.

The invention is further provided with: the outer wall of the lower end of the fixed rod is provided with a circle of elastic clamping ring, and the inner walls of the opening groove and the closing groove are provided with clamping grooves for embedding the clamping ring.

Through adopting above-mentioned technical scheme, through the cooperation that sets up snap ring and draw-in groove, realize the spacing fixed of dead lever to stability when increase fixed part uses.

The invention is further provided with: and cleaning cloth is arranged on one side of the scraper plate, which is far away from the containing box, and abuts against the side wall and the bottom wall of the test groove.

Through adopting above-mentioned technical scheme, when the scraper blade strikes off the residue of test tank inner wall, utilize cleaning cloth to clean and clean test tank inner wall automatically, realize test tank inner wall's thorough clearance, increase test tank's clean degree and clean effect.

The invention is further provided with: the upper end face of the scraper is provided with a water tank, the side wall of the upper end of one side, away from the cleaning cloth, of the scraper is provided with a drain pipe, the drain pipe is communicated with the water tank, the lower end face of the drain pipe is uniformly provided with a plurality of water spray pipes, and the water spray pipes are aligned to the bottom wall of the test tank.

Through adopting above-mentioned technical scheme, after the scraper blade is in vertical state, pour into the clear water into the water tank to when scraper blade clearance test groove inner wall, the clear water flows into behind the drain pipe, again along the spray pipe spout to the test groove diapire on. Utilize the clear water earlier to carry out preliminary washing back to the scraper blade this moment, reuse scraper blade to clear up the test groove inner wall again, reduced the work burden of scraper blade, increase the clearance effect to the residue simultaneously to improve the clean degree and the clean effect of test groove.

The invention is further provided with: the middle part of the water spraying pipe is provided with a branch pipe, and the branch pipe is bent towards the direction of the scraper.

Through adopting above-mentioned technical scheme, when the clear water flowed to in the spray pipe, partly clear water sprays to the scraper blade on, realizes the automatic clearance of scraper blade to improve the clean degree of scraper blade and to the clearance effect of residual.

The invention is further provided with: fan-shaped nozzles are arranged on the water spraying pipe and the branch pipe.

By adopting the technical scheme, because the clear water sprayed by the fan-shaped nozzle has great impact force, the residues can be thoroughly cleaned under the action of the impact force. And when the fan-shaped nozzle is used for cleaning any surface, a good cleaning effect can be achieved only by a small amount of water, so that a large amount of water resources can be saved, and the requirements of modern industry on energy conservation and environmental protection are met.

The invention is further provided with: and elastic plates are arranged on the side walls of the upper ends of the two sides of the scraper plate and are used for compressing the upper end surface of the test groove.

Through adopting above-mentioned technical scheme, when the scraper blade is in vertical state, the elastic plate compresses tightly the both sides up end of test groove, utilizes the elastic rod to block the residue that splashes this moment, avoids the residue splash and influences operational environment's health.

In conclusion, the invention has the following beneficial effects:

1. the automatic cleaning and the quick cleaning of the inner wall of the test tank are realized by arranging the scraper with high automatic movement, the working strength of a tester is greatly reduced, and the cleaning process of the whole device is easier and more convenient;

2. the rapid locking and unlocking of the sliding block and the mounting rod are realized through the locking part and the fixing part which are simple in structure and easy and convenient in operation process;

3. the inner wall of the test tank is automatically wiped and cleaned by arranging the cleaning cloth, so that the inner wall of the test tank is thoroughly cleaned, and the cleaning degree and the cleaning effect of the test tank are improved;

4. the inner wall of the test tank and the scraper are washed by additionally arranging the water tank and the water spray pipe, so that the cleaning effect on residues is improved, and meanwhile, the scraper is automatically cleaned;

5. compress tightly the both sides up end of test groove through setting up the elastic plate to block the residue that splashes, avoid the residue splash and influence operational environment's health.

Drawings

FIG. 1 is a schematic structural view of an embodiment;

FIG. 2 is a schematic structural view of a test cell of the example;

FIG. 3 is a schematic structural view of a blade of the embodiment;

FIG. 4 is a schematic view of the internal structure of a slider of the embodiment;

fig. 5 is a schematic structural diagram of the fixing portion of the embodiment.

Reference numerals: 1. a base; 11. a storage box; 2. a support frame; 3. a storage bin; 4. a test tank; 41. inclining the chute; 42. a horizontal chute; 43. a chute; 44. a slider; 441. a cavity; 442. a through hole; 443. a locking hole; 444. a locking lever; 445. a guide surface; 446. a baffle plate; 447. a return spring; 45. a support bar; 46. mounting a rod; 461. opening the groove; 462. closing the groove; 5. a locking portion; 51. a drive rod; 52. a knob; 53. a locking block; 6. a fixed part; 61. fixing the rod; 62. a snap ring; 7. a squeegee; 71. an elastic plate; 72. a cleaning cloth; 73. a water tank; 75. a drain pipe; 76. a water spray pipe; 77. a branch pipe; 78. a fan-shaped nozzle.

Detailed Description

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

As shown in figure 1, the device for detecting the adaptability of the concrete admixture comprises a base 1 and a support frame 2 arranged on the base 1, wherein a plurality of storage bins 3 are arranged on the support frame 2 side by side, and a test groove 4 of a test groove 4 is arranged on each storage bin 3 in a communicated manner.

As shown in fig. 1, the test bath 4 includes an inclined chute 41 and a horizontal chute 42, and the inclined chute 41 and the horizontal chute 42 communicate with each other. The horizontal chute 42 is provided with an opening, the base 1 is provided with a containing box 11 with an opening at the upper end, and the containing box 11 is positioned below the opening end of the horizontal chute 42.

When using the above described apparatus, a prepared cement paste or slurry is injected into the storage silo 3, and the slurry gradually flows onto the inclined chute 41 and then slowly flows towards the horizontal chute 42. After a certain flow time, the flow distance of the slurry on the horizontal chute 42 is recorded, and the slurry detection test is completed. And after the device finishes using, clean the back in the test tank 4, carry out the receiver again to the device and store.

As shown in fig. 1 and 2, sliding grooves 43 are provided on both sides of the test groove 4 along the length direction thereof, a slider 44 is slidably connected to each sliding groove 43, and a locking portion 5 is provided on the slider 44, and the locking portion 5 is used for fixing the slider 44 in the upper end of the sliding groove 43.

As shown in fig. 1 and 2, a support rod 45 is vertically provided at one end of the slider 44 located outside the chute 43, a mounting rod 46 is horizontally provided between the upper ends of the pair of support rods 45, and the mounting rod 46 spans the test bath 4. The mounting rod 46 is rotatably connected to the support rod 45, and the support rod 45 is provided with a fixing portion 6 for fixing the mounting rod 46.

As shown in fig. 1 and 2, the mounting plate is provided with a plurality of scrapers 7, and the number of the scrapers 7 is the same as the number of the test tanks 4. The plurality of scrapers 7 correspond to the plurality of test wells 4, and the plurality of scrapers 7 are adapted to be fitted into the plurality of test wells 4, respectively.

As shown in fig. 2 and 3, the side walls of the upper ends of the two sides of the scraper 7 are provided with elastic plates 71, and after the scraper 7 is embedded in the test tank 4, the two sides of the scraper 7 abut against the side walls of the test tank 4, the lower end surface of the scraper 7 abuts against the bottom wall of the test tank 4, and the elastic plates 71 press the upper end surface of the test tank 4.

When clearing up test tank 4, remove fixed part 6 earlier, then drive installation pole 46 drives scraper blade 7 synchronous revolution, when scraper blade 7 was in vertical state, in scraper blade 7 embedding test tank 4 to conflict test tank 4's upper end lateral wall and diapire. The fixing portion 6 is then locked to fix the mounting rod 46 and the squeegee 7.

Then, the locking part 5 is released, and at this time, under the action of the gravity of the scraper 7 itself, the scraper 7 will drive the mounting rod 46 to slide downwards, and the mounting rod 46 drives the support rod 45 and the slider 44 to synchronously slide downwards. Meanwhile, the residue on the side wall and the bottom wall of the test chamber 4 is scraped by the scraper 7, and then the residue gradually slides into the storage box 11, thereby completing the cleaning of the test chamber 4.

After cleaning, the fixing part 6 is released again, then the mounting rod 46 is driven to drive the scraper 7 to synchronously rotate until the scraper 7 is separated from the test tank 4 and is in a horizontal state, the fixing part 6 is locked, and the mounting rod 46 and the scraper 7 are fixed. Then, the mounting rod 46 is driven to drive the support rod 45 and the slider 44 to slide upwards until the slider 44 slides to the upper end position of the sliding groove 43, and then the slider 44 is fixed by the locking part 5, so that the whole device can be reset.

As shown in fig. 2 and 3, a cleaning cloth 72 is provided on a side of the scraper 7 facing away from the storage box 11, and the cleaning cloth 72 abuts against the side wall and the bottom wall of the test bath 4.

As shown in fig. 2 and 3, a water tank 73 is provided on the upper end surface of the scraper 7, a drain pipe 75 is provided on the upper end side wall of the scraper 7 on the side away from the cleaning cloth 72, and the drain pipe 75 communicates with the water tank 73.

As shown in fig. 2 and 3, a plurality of spray pipes 76 are uniformly provided on the lower end surface of the drain pipe 75, and a branch pipe 77 is provided in the middle of each spray pipe 76. The water spray pipe 76 is aligned with the bottom wall of the test tank 4, the branch pipe 77 is bent toward the squeegee 7, and fan-shaped nozzles 78 are provided on both the water spray pipe 76 and the branch pipe 77.

When the scraper 7 is in the vertical state, clean water is injected into the water tank 73, and when the scraper 7 cleans the inner wall of the test tank 4, after the clean water flows into the drain pipe 75, a part of the clean water is sprayed to the bottom wall of the test tank 4 along the fan-shaped nozzle 78 on the drain pipe 75, and the bottom wall of the test tank 4 is washed. The other part of the clear water is sprayed to the scraper 7 along the fan shape on the branch pipe 77, and the automatic cleaning of the scraper 7 is realized.

Meanwhile, when the scraper 7 scrapes the residues on the inner wall of the test tank 4, the scraper 7 drives the cleaning cloth 72 to move synchronously, and the inner wall of the test tank 4 is automatically cleaned and cleaned by the cleaning cloth 72, so that the inner wall of the test tank 4 is thoroughly cleaned.

As shown in fig. 2 and 4, a cavity 441 is provided in the slider 44, and an outer wall of the slider 44 is provided with a through hole 442 communicating with the interior of the cavity 441, the locking portion 5 includes a driving rod 51 slidably coupled to the through hole 442, and the driving rod 51 is screw-coupled to the through hole 442.

As shown in fig. 4, one end of the driving rod 51 outside the cavity 441 is provided with a knob 52, and one end inside the cavity 441 is provided with a wedge-shaped locking block 53, and the locking block 53 is tapered from one end of the driving rod 51 to the other end.

As shown in fig. 2 and 4, each of the side walls of the slider 44 has a locking hole 443 communicating with the interior of the cavity 441, and the locking rod 444 is slidably coupled to the locking hole 443. One end of the locking rod 444 close to the locking block 53 is obliquely provided with a guide surface 445 which is abutted against the side wall of the locking block 53, and the inner walls of the upper ends of the two sides of the sliding groove 43 are respectively provided with a locking groove (not shown in the figure) for the locking rod 444 to be inserted.

As shown in fig. 4, a baffle 446 is arranged on the outer wall of one end of the locking rod 444 positioned in the cavity 441, a return spring 447 positioned in the cavity 441 is sleeved on the locking rod 444, and the return spring 447 is positioned between the inner wall of the cavity 441 and the baffle 446.

When the locking part 5 is released, the driving rod 51 is driven to rotate by turning the knob 52, and at this time, the driving rod 51 is gradually screwed into the through hole 442, and the locking block 53 is controlled to move synchronously. At the same time, the locking block 53 is gradually disengaged from the locking lever 444, and the return spring 447 is gradually sprung open. When the return spring 447 is sprung open, the return spring 447 will drive the latch 446 closer to the locking block 53, and at this time the latch 446 will slide the locking lever 444 inward and gradually disengage from the locking slot. The release of the locking portion 5 is achieved until the locking lever 444 is completely disengaged from the locking groove.

When locking the locking part 5, the knob 52 is rotated reversely, and at this time, the knob 52 drives the driving rod 51 to rotate synchronously and drives the locking block 53 to slide reversely. At the same time, the lock rod 444 is driven by the lock block 53 to slide gradually outward by the engagement of the side wall of the lock block 53 with the guide surface 445. And at this time, the locking rod 444 will bring the flapper 446 into synchronous motion and press the return spring 447 into compression. Until the locking lever 444 is inserted into the locking groove in the slide groove 43, the locking of the locking portion 5 is achieved.

As shown in fig. 2 and 5, the fixing portion 6 includes a fixing rod 61 vertically disposed, the fixing rod 61 is vertically slidably connected to the inner wall of the upper end of the supporting rod 45, and the fixing rod 61 is located above the mounting rod 46.

As shown in fig. 5, the outer wall of the mounting rod 46 is provided with an opening groove 461 and a closing groove 462 for the fixing rod 61 to be inserted, the outer wall of the lower end of the fixing rod 61 is provided with a ring of elastic snap ring 62, and the inner walls of the opening groove 461 and the closing groove 462 are provided with snap grooves (not shown) for the snap ring 62 to be inserted.

In this embodiment, the opening slot 461 of the mounting rod 46 is aligned with the fixing rod 61 when the squeegee 7 is in the horizontal state, and the closing slot 462 of the mounting rod 46 is aligned with the fixing rod 61 when the squeegee 7 is in the vertical state. In addition, the horizontal state and the vertical state in this embodiment both refer to the bottom wall of the test groove, that is, the horizontal state means that the scraper is parallel to the bottom wall of the test groove, and the vertical state means that the scraper is perpendicular to the bottom wall of the test groove.

Therefore, by driving the fixing rod 61 to move downward, and inserting the fixing rod 61 into the opening slot 461 or the closing slot 462, the fixing of the mounting rod 46 can be realized, and the fixing part 6 can be locked. Meanwhile, the fixing of the mounting rod 46 can be released by driving the fixing rod 61 to move upward to separate the fixing rod 61 from the opening slot 461 or the closing slot 462, thereby releasing the fixing part 6.

The working principle is as follows: when concrete is detected, prepared cement paste or cement slurry is injected into the storage bin 3, and then the cement paste automatically slides downwards along the lakes in the inclined chute 41 and the horizontal chute 42. After a certain flow time, the flow distance of the slurry on the horizontal chute 42 is recorded, and the slurry detection test is completed. Then, the fixing part 6 and the locking part 5 are released, the scraper 7 is embedded in the test groove 4, and after the scraper 7 is fixed, the scraper 7 automatically slides downwards under the action of the automatic gravity of the scraper 7. Meanwhile, the residue on the side wall and the bottom wall of the test chamber 4 is scraped by the scraper 7, and then the residue gradually slides into the storage box 11, thereby completing the cleaning of the test chamber 4.