Concrete flexural strength clamp

Abstract

The utility model provides a kind of concrete folding clamp, including base, base is equipped with blanking groove and the opposite sides of blanking groove are equipped with first material baffle respectively, base is further equipped with two movable supports and the drive assembly of transmission connection with support, two supports are located between two first material baffles and support is located above blanking groove, the upper surface of support is equipped with support column respectively, two supports are further equipped with second material baffle respectively and support column is located between two second material baffles, the opposite ends of second material baffle are respectively and two first material baffles one-to-one corresponding to adhere, and the space surrounded by two first material baffles and two second material baffles is communicated with blanking groove, drive assembly drives two supports to be close to each other or away from each other.The utility model solves the technical problem that scrap or broken block produced when concrete test piece breaks is inconvenient to clean, produces the technical effect that scrap or broken block produced in detection process is avoided to scatter, is convenient to clean.

Description

Technical Field

[0001] This utility model relates to the field of concrete flexural strength testing technology, and in particular to a concrete flexural strength clamp. Background Technology

[0002] Concrete is made by mixing cement, aggregates, water, and admixtures in a specific ratio to ensure uniform distribution. The mixed concrete is then poured into molds and, after setting and hardening, forms a robust concrete structure. To ensure the safety of concrete in use, a concrete flexural strength testing machine is used to test its flexural strength.

[0003] Chinese utility model patent CN210719935U discloses a concrete flexural clamp, including a base and two sets of clamping devices symmetrically arranged on the base. A long, narrow through-hole is formed in the center of the base. Each clamping device includes a base plate with a connecting plate that movably passes through the through-hole on one side. A slider is mounted on the end of the connecting plate away from the base plate. A screw is rotatably mounted on the base, passing through both sets of sliders. One set of sliders is threaded in a forward direction with the screw, while the other set is threaded in a reverse direction. A driving element is provided at one end of the screw to drive its movement. This concrete flexural clamp facilitates adjustment of the clamping devices during use, improving the efficiency of clamping concrete blocks and thus increasing work efficiency.

[0004] When using the concrete flexural clamp disclosed in the above-mentioned utility model patent to clamp concrete specimens, the concrete specimens may break during the testing process. The debris or fragments generated when the concrete specimens break will fall onto the base, into the through hole, or through the through hole onto the testing machine, causing the debris or fragments to scatter and making it inconvenient to clean. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a concrete flexural clamp, which solves the problem of inconvenient cleaning of debris or fragments generated when concrete specimens break.

[0006] According to an embodiment of this utility model, a concrete flexural clamp includes a base, a through-feed chute on the base, and first baffles on opposite sides of the feed chute. The base also has two symmetrically arranged movable supports and a drive assembly connected to the supports. The two supports are located between the two first baffles and above the feed chute. Support columns are provided on the upper surfaces of the supports. Second baffles are also provided on the two supports, with the support columns located between the two second baffles. The opposite ends of the second baffles are respectively fitted to the two first baffles, and the space enclosed by the two first baffles and the two second baffles communicates with the feed chute. The drive assembly drives the two supports to move closer or further apart.

[0007] Furthermore, the base is also provided with a guide plate, which is located below the discharge chute and communicates with the discharge chute.

[0008] Furthermore, the base is also provided with a receiving box, which is located below the guide plate, and the height of the guide plate gradually increases in the direction away from the receiving box.

[0009] Furthermore, the receiving box is provided with a handle, which is located on the side of the receiving box.

[0010] Furthermore, the two first baffle plates are provided with mounting grooves on their adjacent sides, and guide strips are provided in the mounting grooves. The length direction of the guide strips is consistent with the moving direction of the support. The two ends of the support are provided with guide grooves that correspond to and cooperate with the guide strips.

[0011] Furthermore, the base is also provided with a plurality of stops at intervals, the stops being close to the ends of the first baffle plate and covering the opening of the mounting groove.

[0012] Furthermore, the top surface of each guide bar is provided with a guide surface, and the height of the guide surface gradually decreases along the direction away from the corresponding first baffle plate.

[0013] Furthermore, the drive assembly includes a drive rod rotatably mounted on the base, with a first bevel gear at the end of the drive rod. The drive assembly also includes two threaded rods rotatably mounted on the base, with the axial direction of the threaded rods perpendicular to the axial direction of the drive rod and the two threaded rods located on opposite sides of the drive rod. Each threaded rod is provided with a second bevel gear that meshes with the first bevel gear. The support is provided with threaded holes that correspond one-to-one with the threaded rods.

[0014] Furthermore, the support is provided with connecting arms that extend away from the material discharge chute. The threaded hole is located at the end of the connecting arm away from the material discharge chute. The base is provided with a slot for the connecting arm to pass through, and the length direction of the slot is consistent with the moving direction of the support.

[0015] Furthermore, the drive assembly also includes a handwheel, which is fixedly connected to the end of the drive rod away from the first bevel gear.

[0016] Compared with the prior art, this utility model has the following beneficial effects: By using supports set between two first support plates to support the concrete test block, and by using a driving component to drive the two supports closer or further apart to adjust the distance between the two supports, the concrete test block remains stable after being placed on the support column. After the concrete test block is placed on the support column, it is located in the space enclosed by two first baffle plates and two second baffle plates. At this time, when the concrete test block breaks during the test using a concrete flexural strength testing machine, the debris or fragments generated are blocked by the first baffle plates and the second baffle plates and fall from the drop chute, so as to facilitate the collection of debris or fragments generated during the test. This solves the technical problem of the debris or fragments generated when the concrete test specimen breaks being scattered and inconvenient to clean, and produces the technical effect of avoiding the scattering of debris or fragments generated during the test and facilitating cleaning. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a concrete flexural clamp according to an embodiment of the present invention; Figure 2 This is a structural schematic diagram of a concrete flexural clamp according to an embodiment of the present invention from another perspective; Figure 3 This is a cross-sectional view of a concrete flexural clamp according to an embodiment of the present invention; Figure 4 This is a bottom view of a concrete flexural clamp according to an embodiment of the present invention.

[0018] In the above figures: 1. Base; 11. Material drop chute; 12. First baffle plate; 13. Stop block; 14. Slot; 2. Support; 21. Support column; 22. Second baffle plate; 23. Connecting arm; 3. Drive assembly; 31. Drive rod; 32. First bevel gear; 33. Threaded rod; 34. Second bevel gear; 35. Handwheel; 4. Guide plate; 5. Receiving box; 51. Handle; 6. Guide strip; 61. Guide surface. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0020] like Figures 1 to 4As shown in the figure, this utility model embodiment proposes a concrete flexural clamp, which is installed on a concrete flexural testing machine and is used to support concrete specimens during the process of testing the flexural strength of concrete.

[0021] Please refer to Figure 1 , Figure 2 and Figure 3 The concrete flexural clamp includes a base 1, on which a through-feed chute 11 is provided, and first baffle plates 12 are respectively provided on opposite sides of the feed chute 11. Two movable supports 2 and a drive assembly 3 symmetrically connected to the supports 2 are also provided on the base 1. The two supports 2 are located between the two first baffle plates 12 and above the feed chute 11. Support columns 21 are respectively provided on the upper surface of the supports 2 for supporting the concrete test block. Second baffle plates 22 are also respectively provided on the two supports 2. The support column 21 is located between the two second baffle plates 22. The opposite ends of the second baffle plates 22 are respectively attached to the two first baffle plates 12. After the concrete test block is placed on the support column 21, it is located within the space enclosed by the two first baffle plates 12 and the two second baffle plates 22. This space is connected to the discharge chute 11, so that when the concrete test block breaks, the resulting debris or fragments are blocked by the first baffle plates 12 and the second baffle plates 22 and fall into the discharge chute 11. The driving assembly 3 drives the two supports 2 to move closer or further apart to adjust the distance between the two support columns 21, ensuring the concrete test block remains stable when placed on the support column 21.

[0022] Specifically, the operation steps for testing the flexural strength of concrete specimens using the concrete flexural clamp provided in this embodiment are as follows: The concrete flexural clamp is installed on the concrete flexural testing machine. The driving component 3 drives the two supports 2 to move closer or further apart, adjusting the distance between the two support columns 21 so that the concrete specimen can be stably placed. After the concrete specimen is placed on the support columns 21, it is located within the space enclosed by the two first baffle plates 12 and the two second baffle plates 22. At this point, the concrete flexural testing machine is started to test the concrete specimen. During the test, when the concrete specimen breaks, the resulting debris or fragments are blocked by the first baffle plate 12 and the second baffle plate 22 and fall from the discharge chute 11, thus collecting the debris or fragments generated during the test. The concrete flexural clamp provided in this embodiment can prevent the debris or fragments generated by the breakage of the concrete specimen during the test from scattering and collects the debris or fragments for easy cleaning.

[0023] like Figure 3As shown, the base 1 is also provided with a guide plate 4, which is located below the discharge trough 11 and communicates with the discharge trough 11. The guide plate 4 is used to receive the debris and fragments falling from the discharge trough 11 and collect the debris and fragments in one place to prevent the debris and fragments from scattering into the surrounding environment.

[0024] like Figure 2 and Figure 3 The base 1 shown is also equipped with a receiving box 5, which is located below the guide plate 4, and the height of the guide plate 4 gradually increases in the direction away from the receiving box 5. The receiving box 5, located below the guide plate 4, is used to receive debris and fragments falling from the guide plate 4, so that the debris and fragments generated by the fracture of the concrete test block are concentrated in the receiving box 5 under the guidance of the guide plate 4, which facilitates the subsequent processing of the debris and fragments.

[0025] In this embodiment, the receiving box 5 is provided with a handle 51, which is located on the side of the receiving box 5. The handle 51 is used to pull the receiving box 5 out of the base 1, so as to facilitate the removal of the receiving box 5 from the base 1 for cleaning, or to put the cleaned receiving box 5 back into the base 1.

[0026] Please combine Figure 1 and Figure 3 Each of the two first baffle plates 12 has a mounting groove on its adjacent side. A guide strip 6 is provided within each mounting groove, and the length direction of the guide strip 6 is consistent with the moving direction of the support 2. Each end of the support 2 has a guide groove that corresponds to and engages with the guide strip 6. By installing the guide strip 6 on the first baffle plate 12 and engaging it with the guide groove on the support 2, the stability of the engagement between the support 2 and the first baffle plate 12 is improved. This prevents the support 2 from unexpectedly shifting during the application of pressure by the concrete flexural strength testing machine to the concrete specimen, and prevents the support 2 from deviating from the preset direction when moving under the drive assembly 3.

[0027] In detail, the base 1 is also provided with a plurality of stops 13 at intervals. The stops 13 are respectively close to the ends of the first baffle plate 12 and cover the opening of the mounting groove. The stops 13 provided on the base 1 are used to keep the guide strip 6 in the mounting groove, and at the same time limit the travel of the support 2 to prevent the support 2 from disengaging from the guide strip 6 when it moves under the drive assembly 3.

[0028] like Figure 2 and Figure 3As shown, the top surface of the guide strip 6 is provided with guide surfaces 61, and the height of the guide surfaces 61 gradually decreases in the direction away from the corresponding first baffle plate 12. When the concrete test block breaks during the test, the resulting debris or fragments fall onto the guide strip 6 and then fall along the guide surfaces 61 and through the material drop trough 11, thereby preventing the debris or fragments from remaining on the guide strip 6.

[0029] Please refer to Figure 1 , Figure 3 and Figure 4 The driving assembly 3 includes a driving rod 31 rotatably mounted on the base 1, with a first bevel gear 32 at the end of the driving rod 31. The driving assembly 3 also includes two threaded rods 33 rotatably mounted on the base 1. The axial direction of the threaded rods 33 is perpendicular to the axial direction of the driving rod 31, and the two threaded rods 33 are located on opposite sides of the driving rod 31. Each threaded rod 33 has a second bevel gear 34 that meshes with the first bevel gear 32. The support 2 has threaded holes that correspond to and cooperate with each threaded rod 33. When the driving rod 31 rotates, the engagement of the first bevel gear 32 and the second bevel gear 34 drives the two threaded rods 33 to rotate synchronously. As the threaded rods 33 rotate, the engagement of the threaded holes with the threaded rods 33 drives the supports 2 to move along the axial direction of the corresponding threaded rod 33. The two supports 2 move in opposite directions under the drive of the corresponding threaded rods 33, thus adjusting the distance between the two supports 2.

[0030] like Figure 1 As shown, the support 2 is provided with connecting arms 23, which extend away from the material discharge trough 11. The threaded hole is located at the end of the connecting arm 23 away from the material discharge trough 11. The base 1 is provided with a slot 14 for the connecting arm 23 to pass through, and the length direction of the slot 14 is consistent with the moving direction of the support 2. By setting the connecting arm 23 on the support 2 to extend away from the material discharge trough 11, and by providing the threaded hole on the connecting arm 23, debris or fragments generated during the detection process are prevented from falling onto the connecting arm 23. The slot 14 on the base 1 limits the movement of the connecting arm 23. When the support 2 moves, the connecting arm 23 slides within the slot 14, preventing unexpected displacement of the connecting arm 23 and improving the stability of the support 2 during movement.

[0031] In this embodiment, the drive assembly 3 further includes a handwheel 35, which is fixedly connected to the end of the drive rod 31 away from the first bevel gear 32. The handwheel 35, fixed to the drive rod 31, is used to operate the drive rod 31 to rotate and can conveniently control the direction of rotation of the drive rod 31, thereby accurately adjusting the position of the support 2 and facilitating the use of the concrete flexural clamp.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A concrete flexural clamp, characterized in that: The device includes a base with a through-feed chute and first baffles on opposite sides of the chute. The base also has two symmetrically arranged movable supports and a drive assembly connected to the supports. The two supports are located between the two first baffles and above the chute. Support columns are provided on the upper surfaces of the supports. Second baffles are also provided on the two supports, with the support columns located between the two second baffles. The opposite ends of the second baffles are respectively fitted to the two first baffles. The space enclosed by the two first baffles and the two second baffles communicates with the chute. The drive assembly drives the two supports to move closer or further apart.

2. The concrete flexural clamp as described in claim 1, characterized in that: The base is also provided with a guide plate, which is located below the discharge chute and communicates with the discharge chute.

3. A concrete flexural clamp as described in claim 2, characterized in that: The base is also provided with a receiving box, which is located below the guide plate, and the height of the guide plate gradually increases in the direction away from the receiving box.

4. A concrete flexural clamp as described in claim 3, characterized in that: The receiving box is equipped with a handle, which is located on the side of the receiving box.

5. A concrete flexural clamp as described in claim 1, characterized in that: The two first baffles are provided with mounting grooves on their adjacent sides. The mounting grooves are provided with guide strips, and the length direction of the guide strips is consistent with the moving direction of the support. The two ends of the support are provided with guide grooves that correspond to the guide strips.

6. A concrete flexural clamp as described in claim 5, characterized in that: The base is also provided with a plurality of stops at intervals, the stops being close to the ends of the first baffle plate and covering the opening of the mounting groove.

7. A concrete flexural clamp as described in claim 5, characterized in that: The top surface of each guide bar is provided with a guide surface, and the height of the guide surface gradually decreases along the direction away from the corresponding first baffle plate.

8. A concrete flexural clamp as described in claim 1, characterized in that: The drive assembly includes a drive rod rotatably mounted on the base, with a first bevel gear at the end of the drive rod. The drive assembly also includes two threaded rods rotatably mounted on the base, with the axial direction of the threaded rods perpendicular to the axial direction of the drive rod and the two threaded rods located on opposite sides of the drive rod. Each threaded rod is provided with a second bevel gear that meshes with the first bevel gear. The support is provided with threaded holes that correspond one-to-one with the threaded rods.

9. A concrete flexural clamp as described in claim 8, characterized in that: The support is provided with connecting arms, and the connecting arms extend away from the material discharge chute. The threaded hole is located at the end of the connecting arm away from the material discharge chute. The base is provided with a slot for the connecting arm to pass through, and the length direction of the slot is consistent with the moving direction of the support.

10. A concrete flexural clamp as described in claim 8, characterized in that: The drive assembly also includes a handwheel, which is fixedly connected to the end of the drive rod away from the first bevel gear.

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