A specimen molding device with built-in sensors for concrete creep testing

Abstract

This utility model relates to the field of concrete creep testing technology, and in particular to a specimen forming device with an embedded sensor for concrete creep testing. It includes a molding die, with a partition bracket fixedly connected to the inner side of the molding die. The front and rear ends of the molding die are each provided with a first groove and a second groove. A first electric push rod is fixedly installed on the right side of the first groove. In this utility model, the inclusion of a first electric push rod, a second electric push rod, a first slider, a long vertical plate, a second slider, a short vertical plate, a first scraping plate, a third slider, and a guide post facilitates the use of an automatic scraping structure to quickly remove excess slurry when the sensor is embedded and the excess slurry needs to be scraped and removed. This allows the device to quickly complete the scraping and removal work within a short timeframe.

Description

Technical Field

[0001] This utility model relates to the field of concrete creep testing technology, specifically to a specimen molding device with built-in sensor for concrete creep testing. Background Technology

[0002] In the design and construction of concrete, the creep performance of concrete needs to be considered to ensure the safety and service life of the building. Concrete creep test is a method to evaluate the long-term deformation performance of concrete materials. At the same time, before testing the block-shaped built-in sensor specimen, it is necessary to use a molding device to cast it. During the manufacturing process, it is necessary to ensure that the test sensor is embedded in the concrete slurry.

[0003] Currently, existing specimen molding devices with built-in sensors for concrete creep testing typically require manual scraping to remove excess concrete overflowing from the mold cavity. However, considering the time-sensitive nature of manual operation, manual scraping often results in low efficiency and timeouts when producing a large number of specimens. Some specimens may also experience premature setting due to insufficient scraping, increasing the failure rate of the finished specimens. Therefore, to address these issues, a specimen molding device with built-in sensors for concrete creep testing is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a specimen molding device with an integrated sensor for concrete creep testing, in order to solve the problem mentioned in the background art that the existing specimen molding devices with integrated sensors for concrete creep testing have low efficiency in scraping and cleaning excess material during use.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A specimen molding device with an integrated sensor for concrete creep testing includes a molding die. A partition bracket is fixedly connected to the inner side of the molding die. The front and rear ends of the molding die are each provided with a first groove and a second groove. A first electric actuator is fixedly installed on the right side of the first groove, and a second electric actuator is fixedly installed on the left side of the second groove. A second slider disposed inside the first groove is fixedly connected to the movable end of the first electric actuator. A short vertical plate is fixedly connected to the end of the second slider away from the depth of the first groove. A first scraper plate is fixedly connected between the two short vertical plates. A first slider disposed inside the second groove is fixedly connected to the movable end of the second electric actuator. A long vertical plate is fixedly connected to the end of the first slider away from the depth of the second groove. A second scraper plate is fixedly connected between the two long vertical plates. A groove is provided at the top of the transverse plate of the partition bracket. A third slider is fixedly connected to the bottom of both the second and first scraper plates.

[0007] Preferably, the partition bracket has a cross-shaped structure, and a central partition strip is fixedly connected to the top of the longitudinal plate of the partition bracket. The left and right sides of the central partition strip are respectively attached to the first scraper plate and the second scraper plate.

[0008] Preferably, the first groove and the second groove are arranged vertically, the first slider is disposed inside the second groove, and the second slider is disposed inside the first groove.

[0009] Preferably, the outward pushing and stretching directions of the first electric push rod and the second electric push rod are opposite, and the connection between the two short vertical plates and the first scraper plate forms a "U" shaped structure. The first scraper plate and the second scraper plate are respectively located at the top of the longitudinal plate of the partition bracket. The first scraper plate is symmetrical about the central axis of the longitudinal plate of the partition bracket, and the second scraper plate is symmetrically arranged to the left and right.

[0010] Preferably, the shaping mold has a chute with internal passage opening at the middle of the left side and the middle of the right side. Side buckle plates are fixedly connected to the left and right sides of the chute, and a guide post that is slidably connected to the third slider is fixedly connected between the two side buckle plates.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this invention, the first electric actuator, second electric actuator, first slider, long vertical plate, second slider, short vertical plate, first scraper plate, third slider, and guide post are configured to facilitate the use of an automatic scraping structure formed by the first electric actuator, second electric actuator, first slider, long vertical plate, second slider, short vertical plate, first scraper plate, third slider, and guide post for concrete creep testing. This allows the device to quickly scrape away excess slurry when the sensor is embedded and excess slurry needs to be scraped and removed. This is achieved through the auxiliary connection of the partition bracket, first groove, and second groove, replacing the conventional manual method. This allows the device to quickly complete the scraping and removal work within a short time limit, avoiding premature setting of the specimen due to insufficient scraping caused by operation timeouts, and reducing the defect rate of the prepared specimens. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the left side of the shaping mold of this utility model;

[0015] Figure 3 This is a schematic diagram of the first scraper plate structure of this utility model.

[0016] In the diagram: 1. Shaping mold; 2. Divider bracket; 3. First groove; 4. First electric actuator; 5. Second groove; 6. Second electric actuator; 7. First slider; 8. Long vertical plate; 9. Second slider; 10. Short vertical plate; 11. First scraper plate; 12. Center spacer; 13. Second scraper plate; 14. Slide groove; 15. Side buckle plate; 16. Third slider; 17. Guide post; 18. Chute. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3 This utility model provides a technical solution:

[0019] A specimen molding device with built-in sensor for concrete creep testing includes a molding mold 1. A partition bracket 2 is fixedly connected to the inner side of the molding mold 1. The front and rear end faces of the molding mold 1 are provided with a first groove 3 and a second groove 5. A first electric actuator 4 is fixedly installed on the right side of the first groove 3, and a second electric actuator 6 is fixedly installed on the left side of the second groove 5. A second slider 9 disposed inside the first groove 3 is fixedly connected to the movable end of the first electric actuator 4. A short vertical plate 10 is fixedly connected to the end of the second slider 9 away from the deep interior of the first groove 3. A first scraper plate 11 is fixedly connected between the two short vertical plates 10. A first slider 7 disposed inside the second groove 5 is fixedly connected to the movable end of the second electric actuator 6. A long vertical plate 8 is fixedly connected to the end of the first slider 7 away from the interior of the second groove 5. A second scraper plate 13 is fixedly connected between the two long vertical plates 8. A groove 14 is provided on the top of the horizontal plate of the partition bracket 2. A third slider 16 is fixedly connected to the bottom of both the second scraper plate 13 and the first scraper plate 11.

[0020] like Figure 1 and Figure 2As shown, the partition bracket 2 has a cross-shaped structure. A central partition strip 12 is fixedly connected to the top of the longitudinal plate of the partition bracket 2. The left and right sides of the central partition strip 12 are respectively attached to the first scraper plate 11 and the second scraper plate 13. The reserved setting of the cross-shaped partition bracket 2 can divide the internal space of the molding mold 1 into four independent cavities, so that the molding device can simultaneously produce multiple test pieces in batches. The first groove 3 and the second groove 5 are arranged vertically. The first slider 7 is set inside the second groove 5, and the second slider 9 is set inside the first groove 3. This structure is conducive to the first electric push rod 4 and the second electric push rod 6 moving along the inside of the first groove 3 and the second groove 5 respectively without interfering with each other, so as to smoothly complete the entire scraping and cleaning work.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, the outward pushing and stretching directions of the first electric push rod 4 and the second electric push rod 6 are opposite. The connection between the two short vertical plates 10 and the first scraper plate 11 forms a "U" shaped structure. The first scraper plate 11 and the second scraper plate 13 are respectively set at the top of the longitudinal plate of the partition bracket 2. The first scraper plate 11 is symmetrical about the central axis of the longitudinal plate of the partition bracket 2, and the second scraper plate 13 is symmetrically arranged on the left and right sides. The symmetrical design facilitates the device to effectively remove excess slurry by moving the first scraper plate 11 and the second scraper plate 13 simultaneously. The middle left and right sides of the shaping mold 1 are provided with chute 18 that is internally connected to the slide groove 14. The left and right sides of the slide groove 14 are fixedly connected with side buckle plates 15. The two side buckle plates 15 are fixedly connected with guide posts 17 that are slidably connected to the third slider 16. With the mutual connection, the third slider 16 will quickly push the slurry that falls into the slide groove 14 out of the device during the movement.

[0022] Workflow: The power required for the casting and molding device in this utility model to start and operate is all from an external power source. Before conducting creep tests on block-shaped concrete specimens with built-in sensors, the device is used to cast and mold them. According to the layered casting operation steps, a layer of concrete slurry is first poured into the four cavities formed by the partition bracket 2 and the molding mold 1. After the multiple sensors used in the test are embedded into the four cavities, the remaining concrete slurry is injected into the four cavities in sequence, so that it can be molded and molded inside the cavities. At the same time, during the grouting process, when the excess material on the top of the cavity needs to be scraped and removed within a short time, under the connection of the first groove 3 and the second groove 5 and the auxiliary constraint of the partition bracket 2, the two front and rear first electric push rods 4 and the two front and rear second electric push rods 6 are activated simultaneously. The two first electric push rods 4 will pass through The second slider 9, carrying two short vertical plates 10, moves to the left along the top of the forming mold 1 along the first scraper plate 11. Meanwhile, the two second electric push rods 6, through the first slider 7, carry two long vertical plates 8 and the second scraper plate 13, moving to the right along the top of the forming mold 1. This allows the forming device to scrape and remove the pre-reserved areas above the four cavities by simultaneously moving the first scraper plate 11 and the second scraper plate 13 to the left and right. At the same time, when the first scraper plate 11 and the second scraper plate 13 move horizontally along the inside of the chute 14 along the two third sliders 16, the third sliders 16 push some of the slurry that has fallen into the chute 14 towards the edge of the chute 14. Once pushed to a certain position, the slurry will be carried outward along the inside of the chute 18, preventing the slurry from solidifying inside the chute 14 and affecting the smooth movement of the first scraper plate 11 and the second scraper plate 13.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An in-built sensor test specimen forming device for concrete creep testing, comprising a shaped mold (1), characterized in that: The inner side of the shaping mold (1) is fixedly connected to a partition bracket (2). The front and rear end faces of the shaping mold (1) are provided with a first groove (3) and a second groove (5). A first electric push rod (4) is fixedly installed on the right side of the first groove (3), and a second electric push rod (6) is fixedly installed on the left side of the second groove (5). The movable end of the first electric push rod (4) is fixedly connected to a second slider (9) disposed inside the first groove (3). A short vertical plate (10) is fixedly connected to one end of the second slider (9) away from the deep interior of the first groove (3). A first scraper plate (11) is fixedly connected between the short upright plates (10). A first slider (7) is fixedly connected to the movable end of the second electric push rod (6) and disposed inside the second groove (5). A long upright plate (8) is fixedly connected to the end of the first slider (7) away from the inside of the second groove (5). A second scraper plate (13) is fixedly connected between the front and rear long upright plates (8). A groove (14) is opened on the top of the horizontal plate of the partition bracket (2). A third slider (16) is fixedly connected to the bottom of both the second scraper plate (13) and the first scraper plate (11).

2. The built-in sensor specimen forming device for concrete creep test according to claim 1, characterized in that: The partition bracket (2) has a cross-shaped structure. A central partition strip (12) is fixedly connected to the top of the longitudinal plate of the partition bracket (2). The left and right sides of the central partition strip (12) are respectively attached to the first scraper plate (11) and the second scraper plate (13).

3. The built-in sensor specimen molding device for concrete creep test according to claim 1, characterized in that: The first groove (3) and the second groove (5) are arranged vertically, the first slider (7) is located inside the second groove (5), and the second slider (9) is located inside the first groove (3).

4. The built-in sensor specimen molding device for concrete creep test according to claim 1, characterized in that: The outward pushing and stretching direction of the first electric push rod (4) and the outward pushing and stretching direction of the second electric push rod (6) are opposite. The connection between the two short vertical plates (10) and the first scraper plate (11) forms a "U" shaped structure. The first scraper plate (11) and the second scraper plate (13) are respectively set at the top position of the longitudinal plate of the partition bracket (2). The first scraper plate (11) is symmetrical about the central axis of the longitudinal plate of the partition bracket (2), and the second scraper plate (13) is symmetrically arranged on the left and right.

5. The built-in sensor test specimen molding device for concrete creep test according to claim 1, characterized in that: The shaping mold (1) has a chute (18) that is open in the middle of the left side and the middle of the right side. The chute (14) has a side plate (15) fixedly connected to the left and right sides. The two side plates (15) are fixedly connected to each other and are slidably connected to the third slider (16).

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