Auxiliary device for concrete compressive strength test

Abstract

The utility model relates to the technical field of concrete testing, and discloses a concrete compressive strength test auxiliary device which comprises a protective shell, the protective shell is of a box body structure with an opening in the front face, a hydraulic push rod is fixedly arranged on the upper surface of the protective shell, and a supporting seat is fixedly connected to the lower surface of the protective shell. A collecting box is fixedly connected to the lower surface of the supporting seat, a discharging opening is formed in the surface of the supporting seat, and the collecting box corresponds to the discharging opening in position. According to the utility model, the two movable bottom plates are arranged inside the protective shell and can be combined with each other when a compression test is carried out on a concrete test block, so that the test block is supported and limited by the movable bottom plates, then the hydraulic push rod is used for driving the pressing plate to press the test block, and in the test process, the test block is pressed by the hydraulic push rod. And the protective baffle is used for shielding the opening in the front surface of the protective shell, so that the crushed waste is prevented from splashing outwards in the process of impacting the test block, and the test personnel are protected.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete testing, and more specifically to an auxiliary device for concrete compressive strength testing. Background Art

[0002] Concrete compressive strength is one of the most important indicators of concrete quality. In construction projects, it is necessary to test the compressive performance of the concrete used. When testing the compressive strength of concrete test blocks, a compressive testing device is required.

[0003] When the existing concrete compressive strength testing device is measuring the concrete pressure, the concrete will be crushed and debris will splash, which will damage the test equipment, affect the test accuracy, and may also accidentally injure workers, posing a safety hazard. In addition, the debris left in the concrete after being crushed is inconvenient to clean.

[0004] This patent designs a debris splash prevention mechanism in the compression resistance detection device to solve the current problem of debris splashing after concrete is crushed. Utility Model Content

[0005] In order to overcome the above defects of the prior art, the utility model provides a concrete compressive strength test auxiliary device to solve the problems existing in the above background technology.

[0006] The utility model provides the following technical solutions: a concrete compressive strength test auxiliary device, comprising a protective shell, the protective shell is a box structure with a front opening, and a hydraulic push rod is fixedly arranged on the upper surface of the protective shell, a support seat is fixedly connected to the lower surface of the protective shell, a collection box is fixedly connected to the lower surface of the support seat, a material drop opening is opened on the surface of the support seat, the position of the collection box corresponds to the material drop opening, and the collection box is used to collect waste generated during the test;

[0007] Both sides of the support seat are fixedly connected with a driving motor, the output shaft of the driving motor is fixedly connected with a driving screw, the opposite ends of the two driving screws are rotatably connected to the side of the protective shell, the left and right sides of the protective shell are provided with rectangular limiting holes, the inner wall of the rectangular limiting hole is slidably provided with a movable bottom plate, the lower surface of the movable bottom plate is fixedly connected with a linkage block, the surface of the linkage block is provided with a threaded hole matching the driving screw, the linkage block is threadedly connected to the surface of the driving screw through the threaded hole, the driving screw is used to drive the movable bottom plate to move, and the movable bottom plate is used to support and limit the concrete test block;

[0008] A protective component is provided on the front of the protective shell, and the protective component includes a protective baffle. A lifting motor is fixedly installed on the front of the support seat, and a lifting screw is fixed to the output shaft of the lifting motor. A lifting block is threadedly connected to the surface of the lifting screw, and the lifting block is fixedly connected to the front of the protective baffle. The lifting motor is used to drive the protective baffle to block the front of the protective shell.

[0009] Furthermore, guide bars are fixedly connected on both sides of the protective shell, and limiting sleeves are fixedly connected on both sides of the protective baffle. The position of the limiting sleeves corresponds to the guide bars, and the protective baffle slides up and down on the surfaces of the two guide bars through the limiting sleeves.

[0010] Furthermore, the telescopic end of the hydraulic push rod extends to the interior of the protective shell and is fixedly connected to a mounting plate. Four buffer holes are opened on the surface of the mounting plate. Buffer columns are slidably arranged on the inner walls of the buffer holes. The bottom ends of the four buffer columns are fixedly connected to a pressure plate.

[0011] Furthermore, a support spring is sleeved on the surface of the buffer column, the bottom end of the support spring is fixedly connected to the upper surface of the pressure plate, and the top end of the support spring is fixedly connected to the lower surface of the mounting plate.

[0012] Furthermore, the inner wall of the protective shell is fixedly connected with two support rods symmetrically positioned to each other, the lower surface of the movable base plate is fixedly connected with a support bar, the surface of the support bar is provided with two sliding through holes, the size of the sliding through holes matches the support rod, and the support bar is slidably connected to the surface of the support rod through the sliding through holes.

[0013] Furthermore, the two movable bottom plates are provided with corresponding offset grooves at opposite ends, the sizes of the two offset grooves match each other, and the two movable bottom plates are spliced ​​together through the offset grooves.

[0014] Furthermore, a transparent protective plate is fixedly provided on the front side of the protective shell, and the transparent protective plate is close to the top of the protective shell.

[0015] Furthermore, a waste outlet is provided on the front of the collecting box, and a discharge inclined block is provided on the inner bottom wall of the collecting box.

[0016] Technical effects and advantages of the utility model:

[0017] 1. The utility model provides two movable bottom plates inside the protective shell. When a compression test is performed on a concrete test block, the two movable bottom plates can be merged with each other, so that the movable bottom plates are used to support and limit the test block, and then the hydraulic push rod is used to drive the pressure plate to press the test block. During the test, the protective baffle is used to cover the opening on the front of the protective shell to prevent the crushed waste from splashing out during the impact on the test block, thereby protecting the test personnel. After the test is completed, the driving motor can be used to drive the driving screw to rotate, thereby driving the two movable bottom plates to move to both sides at the same time, so that the waste on the surface of the movable bottom plate enters the collection box below through the drop-out port, so as to achieve the effect of convenient waste removal.

[0018] 2. The utility model provides a buffer column and a support spring on the surface of the pressure plate. When the pressure plate is used to press the test block, the pressure plate is firstly contacted with the test block, and the pressure plate drives the buffer column to press the support spring upward, thereby having a certain buffering effect on the pressure plate, so that the pressure plate gradually applies pressure to the test block, avoiding the test block from bouncing or deflecting due to sudden force. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional front view structural diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the utility model after removing the protective baffle;

[0021] Figure 3 This is a schematic diagram of the structure of the utility model after the protective baffle is opened upward;

[0022] Figure 4 This is a partial enlarged structural diagram of the movable bottom plate and the dislocation groove of the utility model;

[0023] Figure 5 It is a schematic diagram of the side section structure of the collection box of the utility model.

[0024] The accompanying drawings are marked as follows: 1. protective shell; 2. protective assembly; 3. support seat; 4. collection box; 5. drop opening; 6. drive motor; 7. drive screw; 8. rectangular limit hole; 9. movable bottom plate; 10. linkage block; 11. hydraulic push rod; 12. mounting plate; 13. buffer column; 14. pressure plate; 15. support spring; 16. support rod; 17. support bar; 18. offset groove; 19. transparent protective plate; 20. waste outlet; 21. discharge oblique block;

[0025] Protective baffle; 202, lifting motor; 203, lifting screw; 204, lifting block; 205, limiting sleeve; 206, guide bar. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The concrete compressive strength test auxiliary device involved in the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0027] Reference Figure 1-5 The utility model provides a concrete compressive strength test auxiliary device, including a protective shell 1, the protective shell 1 is a box structure with an opening on the front, a transparent protective plate 19 is fixedly arranged on the front of the protective shell 1, the transparent protective plate 19 is close to the top of the protective shell 1, the transparent protective plate 19 covers the upper half of the front opening of the protective shell 1, and the lower half opening is used to place a test block.

[0028] A hydraulic push rod 11 is fixedly arranged on the upper surface of the protective shell 1, and the telescopic end of the hydraulic push rod 11 extends to the inside of the protective shell 1 and is fixedly connected to a mounting plate 12. Four buffer holes are opened on the surface of the mounting plate 12, and buffer columns 13 are slidably arranged on the inner wall of the buffer holes. The bottom ends of the four buffer columns 13 are fixedly connected to a pressure plate 14.

[0029] A support spring 15 is sleeved on the surface of the buffer column 13 . The bottom end of the support spring 15 is fixedly connected to the upper surface of the pressure plate 14 , and the top end of the support spring 15 is fixedly connected to the lower surface of the mounting plate 12 .

[0030] It is worth mentioning that, by arranging the buffer column 13 and the support spring 15 on the surface of the pressure plate 14, when the hydraulic push rod 11 drives the pressure plate 14 to press the concrete test block, the pressure plate 14 is first driven to contact the test block, and then the pressure plate 14 drives the buffer column 13 to squeeze the support spring 15 upward, which can play a certain buffering role on the pressure plate 14, so that the pressure plate 14 gradually applies pressure to the test block, thereby avoiding the situation where the test block is suddenly subjected to force and bounces or deflects.

[0031] The lower surface of the protective shell 1 is fixedly connected to a support base 3 , the lower surface of the support base 3 is fixedly connected to a collection box 4 , a waste outlet 20 is provided on the front of the collection box 4 , and a discharge inclined block 21 is provided on the inner bottom wall of the collection box 4 .

[0032] A material discharge port 5 is provided on the surface of the support seat 3, and the position of the collecting box 4 corresponds to the material discharge port 5. The collecting box 4 is used to collect waste generated during the test process. By setting a discharge inclined block 21, the waste can be discharged conveniently.

[0033] Both sides of the support seat 3 are fixedly connected with a driving motor 6, and the output shaft of the driving motor 6 is fixedly connected with a driving screw 7. The opposite ends of the two driving screws 7 are rotatably connected to the side of the protective shell 1. The left and right sides of the protective shell 1 are provided with rectangular limiting holes 8, and the inner wall of the rectangular limiting hole 8 is slidably provided with a movable bottom plate 9.

[0034] The inner wall of the protective shell 1 is fixedly connected with two support rods 16 whose positions are symmetrical to each other, and the lower surface of the movable bottom plate 9 is fixedly connected with a support bar 17. The surface of the support bar 17 is provided with two sliding holes. The size of the sliding holes matches the support rod 16, and the support bar 17 is slidably connected to the surface of the support rod 16 through the sliding holes. By arranging the support rod 16 and the support bar 17, the bottom of the movable bottom plate 9 can be supported and guided, thereby improving the stability of the movable bottom plate 9 in supporting and limiting the bottom of the test block.

[0035] The opposite ends of the two movable bottom plates 9 are provided with corresponding offset grooves 18, the sizes of the two offset grooves 18 match each other, and the two movable bottom plates 9 are spliced ​​through the offset grooves 18. By setting the offset grooves 18, it is convenient for the two movable bottom plates 9 to be merged and spliced, thereby improving the stability of the joints of the two movable bottom plates 9.

[0036] The lower surface of the movable bottom plate 9 is fixedly connected with a linkage block 10, and a threaded hole matching the driving screw 7 is opened on the surface of the linkage block 10. The linkage block 10 is threadedly connected with the surface of the driving screw 7 through the threaded hole. The driving screw 7 is used to drive the movable bottom plate 9 to move, and the movable bottom plate 9 is used to support and limit the concrete test block;

[0037] It is worth mentioning that by arranging two movable bottom plates 9 inside the protective shell 1, when the concrete test block is subjected to a compression test, the two movable bottom plates 9 are first merged with each other, and then the concrete test block is placed on the surface of the two movable bottom plates 9, and then the hydraulic push rod 11 is used to drive the pressure plate 14 to press the test block. After the compression test is completed, the drive motor 6 can be used to drive the drive screw 7 to rotate, thereby driving the two linkage blocks 10 to move in the opposite direction, driving the two movable bottom plates 9 and the support bar 17 to move to both sides on the surface of the support rod 16, and at the same time, the movable bottom plate 9 is moved from the rectangular limiting hole 8 to the outside of the protective shell 1, so that the waste on the surface of the movable bottom plate 9 enters the collection box 4 below through the drop port 5, which is convenient for the staff to clean and collect the waste during the test.

[0038] A protective component 2 is provided on the front of the protective shell 1 , and the protective component 2 includes a protective baffle 201 . It should be noted that before the test starts, the protective baffle 201 is located at the height of the transparent protective plate 19 , so as to facilitate the staff to place the test block into the protective shell 1 .

[0039] A lifting motor 202 is fixedly installed on the front of the support seat 3, and a lifting screw 203 is fixed on the output shaft of the lifting motor 202. A lifting block 204 is threadedly connected to the surface of the lifting screw 203. The lifting block 204 is fixedly connected to the front of the protective baffle 201. The lifting motor 202 is used to drive the protective baffle 201 to block the front of the protective shell 1. Guide strips 206 are fixedly connected on both sides of the protective shell 1. Limiting sleeves 205 are fixedly connected on both sides of the protective baffle 201. The position of the limiting sleeves 205 corresponds to the guide strips 206. The protective baffle 201 slides up and down on the surfaces of the two guide strips 206 through the limiting sleeves 205.

[0040] It is worth mentioning that before the test starts, the lifting motor 202 can be used to drive the lifting screw 203 to rotate, thereby driving the lifting block 204 to move on the surface of the lifting screw 203, and the lifting block 204 can be used to drive the protective baffle 201 to descend to the bottom of the transparent protective plate 19, thereby shielding the test block area and shielding the opening on the front of the protective shell 1 to prevent the crushed waste from splashing outward during the impact of the test block, thereby protecting the test personnel.

[0041] Finally, it should be noted that the drawings of the embodiments disclosed in the present utility model only involve structures related to the embodiments disclosed in the present utility model. The above description is only a preferred embodiment of the present utility model and is not used to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A concrete compressive strength test auxiliary device, comprising a protective shell (1), characterized in that: The protective shell (1) is a box structure with an opening at the front, and a hydraulic push rod (11) is fixedly arranged on the upper surface of the protective shell (1), a support seat (3) is fixedly connected to the lower surface of the protective shell (1), and a collection box (4) is fixedly connected to the lower surface of the support seat (3), and a material drop opening (5) is opened on the surface of the support seat (3), and the position of the collection box (4) corresponds to the material drop opening (5), and the collection box (4) is used to collect waste generated during the test process; The support seat (3) is fixedly connected to a driving motor (6) on both sides, and the output shaft of the driving motor (6) is fixedly connected to a driving screw (7). The opposite ends of the two driving screws (7) are rotatably connected to the side of the protective shell (1). The left and right sides of the protective shell (1) are provided with rectangular limiting holes (8). The inner wall of the rectangular limiting hole (8) is slidably provided with a movable bottom plate (9). The lower surface of the movable bottom plate (9) is fixedly connected to a linkage block (10). The surface of the linkage block (10) is provided with a threaded hole matching the driving screw (7). The linkage block (10) is threadedly connected to the surface of the driving screw (7) through the threaded hole. The driving screw (7) is used to drive the movable bottom plate (9) to move, and the movable bottom plate (9) is used to support and limit the concrete test block. The front of the protective shell (1) is provided with a protective component (2), the protective component (2) comprising a protective baffle (201), a lifting motor (202) is fixedly mounted on the front of the support seat (3), a lifting screw (203) is fixedly mounted on the output shaft of the lifting motor (202), a lifting block (204) is threadedly connected to the surface of the lifting screw (203), the lifting block (204) is fixedly connected to the front of the protective baffle (201), and the lifting motor (202) is used to drive the protective baffle (201) to shield the front of the protective shell (1).

2. A concrete compressive strength test auxiliary device according to claim 1, characterized in that: Both sides of the protective shell (1) are fixedly connected to guide strips (206), and both sides of the protective baffle (201) are fixedly connected to limit sleeves (205), the position of the limit sleeves (205) corresponds to the guide strips (206), and the protective baffle (201) slides up and down on the surfaces of the two guide strips (206) through the limit sleeves (205).

3. A concrete compressive strength test auxiliary device according to claim 2, characterized in that: The telescopic end of the hydraulic push rod (11) extends into the interior of the protective shell (1) and is fixedly connected to a mounting plate (12). The surface of the mounting plate (12) is provided with four buffer holes. The inner walls of the buffer holes are slidably provided with buffer columns (13). The bottom ends of the four buffer columns (13) are fixedly connected to a pressure plate (14).

4. A concrete compressive strength test auxiliary device according to claim 3, characterized in that: A support spring (15) is sleeved on the surface of the buffer column (13), the bottom end of the support spring (15) is fixedly connected to the upper surface of the pressure plate (14), and the top end of the support spring (15) is fixedly connected to the lower surface of the mounting plate (12).

5. The concrete compressive strength test auxiliary device according to claim 4, characterized in that: The inner wall of the protective shell (1) is fixedly connected to two support rods (16) whose positions are symmetrical to each other, and the lower surface of the movable bottom plate (9) is fixedly connected to a support bar (17). The surface of the support bar (17) is provided with two sliding through holes, the size of the sliding through holes matches that of the support rod (16), and the support bar (17) is slidably connected to the surface of the support rod (16) through the sliding through holes.

6. A concrete compressive strength test auxiliary device according to claim 5, characterized in that: The opposite ends of the two movable bottom plates (9) are provided with offset grooves (18) with corresponding positions, the sizes of the two offset grooves (18) match each other, and the two movable bottom plates (9) are spliced ​​together via the offset grooves (18).

7. A concrete compressive strength test auxiliary device according to claim 6, characterized in that: A transparent protective plate (19) is fixedly arranged on the front side of the protective shell (1), and the transparent protective plate (19) is close to the top of the protective shell (1).

8. The concrete compressive strength test auxiliary device according to claim 7, characterized in that: The front of the collecting box (4) is provided with a waste outlet (20), and the inner bottom wall of the collecting box (4) is provided with a discharge inclined block (21).

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