Concrete test block compression resistance testing device

Abstract

The utility model discloses a compression resistance testing device for a concrete test block, and relates to the technical field of constructional engineering. The balls are embedded in the first supporting strips in a rolling mode. The second supporting strip is arranged below the first supporting strip. The lifting block is rotationally connected with the second connecting rod on the front side through a bearing; an adjusting block is fixed to the second connecting rod on the rear side, and an adjusting groove is formed in the rear side of the adjusting block; the first limiting plates abut against the left and right of the adjusting block correspondingly, and the upper ends of the first limiting plates are fixed to the bottom of the operation table. The adjusting plate is arranged below the position between the two first limiting plates. The limiting mechanism is arranged on the operation table; the protection mechanisms are respectively arranged on the left and right of the console; the concrete test block can be moved according to the position needing to be measured, the concrete test block is moved to the force application position of the hydraulic machine, and the practicability is improved; the concrete test block is prevented from moving during testing, so that the testing effect is more accurate; the protective cover covers the concrete test block for compression resistance test, and the protective cover prevents chippings from splashing.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically to a concrete test block compressive strength testing device. Background Technology

[0002] When conducting compressive strength tests on concrete specimens, hydraulic rods are typically used on an operating table. However, concrete specimens are generally heavy, making it difficult to move them to the point of application and adjust their position. Furthermore, during testing, concrete specimens are prone to producing flying debris. Therefore, a concrete specimen compressive strength testing device is proposed. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a concrete block compressive strength testing device. This device allows the concrete block to be moved according to the required measurement location, placing it at the point of force application of the hydraulic press, thus improving practicality. It also prevents the concrete block from moving during testing, resulting in more accurate test results. A protective cover encloses the concrete block during the compressive strength test, preventing debris from flying.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: it includes a base, an operating table, a hydraulic rod, and a first support plate; the operating table is provided on the base, a mounting frame is fixed to the rear side of the operating table, a hydraulic rod is fixed to the front end of the mounting frame, and the hydraulic rod is connected to an external power source; a first support plate is fixed between the base and the operating table at the rear side.

[0005] It also includes:

[0006] An adjustment mechanism, comprising several mechanisms respectively disposed between the operating table and the base, wherein a square slot is provided on the operating table and the adjustment mechanism is disposed within the square slot; the adjustment mechanism includes:

[0007] The No. 1 support bar is located inside the square groove;

[0008] The ball bearings are in the form of several balls, each of which is rolled and embedded in the first support bar.

[0009] The second support bar is located below the first support bar; a first connecting rod is fixed at both the front and rear of the first and second support bars, and a second connecting rod is fixed on the outer side of the annular wall of both first connecting rods.

[0010] The lifting block is screwed to the second connecting rod on the front side via a bearing. A lifting screw is screwed into the lifting block via a thread. The upper end of the lifting screw is screwed to the bottom of the operating table via a bearing. A lifting motor is fixed on the base and is connected to an external power source. The output shaft of the lifting motor is connected to the lifting screw.

[0011] An adjusting block is fixed on the second connecting rod at the rear, and an adjusting groove is provided on the rear side of the adjusting block;

[0012] There are two No. 1 limit plates, which are respectively abutted against the left and right sides of the adjustment block, and the upper end of the No. 1 limit plate is fixed to the bottom of the operating table.

[0013] An adjusting plate is located below the two No. 1 limit plates. The rear end of the adjusting plate is located on the adjusting motor. The output shaft of the adjusting motor is connected to the adjusting plate through a shaft. The adjusting motor is connected to an external power supply. The adjusting motor is fixed on the No. 1 support plate.

[0014] A limiting mechanism is provided on the operating table;

[0015] The protective mechanism consists of two parts, which are respectively located on the left and right sides of the operating table.

[0016] Preferably, a reinforcing rod is fixed to the bottom of the first support bar, and the bottom of the reinforcing rod is fixed to the second support bar.

[0017] Preferably, the limiting mechanism comprises:

[0018] The limit motors are two in number and are respectively fixed to the left and right rear sides of the upper surface of the operating table by a mounting plate No. 1; the limit motors are connected to an external power supply.

[0019] The limiting screws are two in number and are respectively connected to the output shaft of the limiting motor. The other end of the limiting screw is screwed to the second mounting plate through a bearing. The second mounting plate is fixed to the front side of the upper surface of the operating table.

[0020] The limiting rods are two in number and are respectively fixed between the first mounting plate and the second mounting plate at the front and rear.

[0021] The second limiting plate consists of two plates, which are movably sleeved on the front and back of the left and right limiting rods, respectively. The right end of the rear second limiting plate is threadedly sleeved on the right limiting screw, and the left end of the front second limiting plate is threadedly sleeved on the left limiting screw.

[0022] Preferably, the protective mechanisms all include:

[0023] The second support plate is fixed to the side wall of the operating table; a movable groove is provided on the second support plate; a protective motor is fixed in the movable groove and is connected to an external power source.

[0024] A protective screw is connected to the output shaft of a protective motor. The other end of the protective screw is screwed into a movable groove via a bearing. An internally threaded tube is screwed onto the protective screw and rests against the movable groove.

[0025] The protective cover is a semi-cylindrical structure with an arc-shaped groove on the inner side of the upper end and a second connecting rod fixed on the outer side wall of the protective cover.

[0026] A support rod is fixed to an internally threaded pipe. A first electric telescopic rod is fixed to the upper end of the support rod and is connected to an external power source. The movable end of the first electric telescopic rod is connected to a second connecting rod.

[0027] Preferably, a third support plate is fixed to the bottom outer side of the second support plate, and the third support plate is fixed to the base.

[0028] Preferably, the top plate is located below the second support bar, and the bottom left and right sides of the top plate are equipped with the second electric telescopic rods, which are connected to an external power source; the movable end of the second electric telescopic rod is connected to the top plate, and the second electric telescopic rod is fixed on the base.

[0029] Compared with the prior art, the beneficial effects of this utility model are:

[0030] 1. It is equipped with ball bearings, which allow the concrete specimen to be moved according to the required measurement position and placed at the point of force application of the hydraulic press, thus improving its practicality.

[0031] 2. The ball bearings on the No. 1 support bar can be replaced with the No. 2 support bar to prevent the concrete specimen from moving during testing, thus making the test results more accurate;

[0032] 3. A protective mechanism is provided. The No. 1 electric telescopic rod drives the protective cover to descend, so that the protective cover covers the concrete test block for compression testing. The protective cover prevents debris from flying. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of this utility model.

[0034] Figure 2 yes Figure 1 Enlarged view of part A in the image.

[0035] Figure 3 yes Figure 1 Enlarged view of part B in the image.

[0036] Figure 4 yes Figure 1 Enlarged view of section C in the image.

[0037] Figure 5 This is a schematic diagram of the adjustment mechanism in this utility model.

[0038] Figure 6 yes Figure 5 Enlarged view of part D in the image.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Base; 2. Operating table; 3. Hydraulic rod; 4. Support plate 1; 5. Adjustment mechanism; 5. Support bar 1; 5-1. Ball bearing; 5-2. Support bar 2; 5-3. Connecting rod 1; 5-4. Connecting rod 2; 5-5. Reinforcing rod; 5-6. Lifting block; 5-7. Lifting screw; 5-8. Lifting motor; 5-9. Adjusting block; 5-10. Adjusting groove; 5-11. Limiting plate 1; 5-12. Adjusting plate; 5-13. Adjusting motor; 5-14. Limiting mechanism; 6. Limiting... 6-1 motor, 6-2 mounting plate 1, 6-3 limit screw, 6-4 mounting plate 2, 6-5 limit rod, 6-6 limit plate 2, 7 protective mechanism, 7-1 support plate 2, 7-2 moving groove, 7-3 support plate 3, 7-4 protective motor, 7-5 protective screw, 7-6 internal threaded pipe, 7-7 protective cover, 7-8 arc groove, 7-9 support rod, 7-10 electric telescopic rod 1, 8 top plate, 9 electric telescopic rod 2. Detailed Implementation

[0041] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0042] The specific implementation method adopts the following technical solution:

[0043] Please see Figure 1-6 This embodiment includes a base 1, an operating table 2, a hydraulic rod 3, and a first support plate 4; the operating table 2 is provided on the base 1, a mounting frame is fixed to the rear side of the operating table 2, and a hydraulic rod 3 is fixed to the front end of the mounting frame. The hydraulic rod 3 is connected to an external power source; a first support plate 4 is fixed to the rear side of the base 1 and the operating table 2 by bolts.

[0044] It also includes:

[0045] An adjustment mechanism 5, comprising several units, is provided between the operating table 2 and the base 1. The operating table 2 has square slots, and the adjustment mechanisms 5 are disposed within these slots. Each adjustment mechanism 5 includes:

[0046] Support bar 5-1, wherein support bar 5-1 is disposed in a square groove;

[0047] There are several ball bearings 5-2, and they are respectively rolled and embedded on the first support bar 5-1;

[0048] The second support bar 5-3 is located below the first support bar 5-1; the first support bar 5-1 and the second support bar 5-3 are both fixed with first connecting rods 5-4 by bolts at the front and back, and the outer sides of the annular walls of the two first connecting rods 5-4 are fixed with second connecting rods 5-5 by bolts; the bottom of the first support bar 5-1 is fixed with a reinforcing rod 5-6 by bolts, and the bottom of the reinforcing rod 5-6 is fixed to the second support bar 5-3;

[0049] The lifting block 5-7 is screwed to the second connecting rod 5-5 on the front side via a bearing. A lifting screw 5-8 is threaded into the lifting block 5-7, and the upper end of the lifting screw 5-8 is screwed to the bottom of the operating table 2 via a bearing. A lifting motor 5-9 is bolted to the base 1. The lifting motor 5-9 is connected to an external power source. The specific model of the lifting motor 5-9 is purchased and installed directly from the market according to actual usage requirements. The output shaft of the lifting motor 5-9 is connected to the lifting screw 5-8.

[0050] Adjusting block 5-10, the adjusting block 5-10 is fixed to the second connecting rod 5-5 on the rear side by bolts, and the rear side of the adjusting block 5-10 is provided with an adjusting groove 5-11;

[0051] There are two No. 1 limiting plates 5-12, which are respectively abutted on the left and right sides of the adjusting block 5-10. The upper end of the No. 1 limiting plate 5-12 is fixed to the bottom of the operating table 2 by bolts.

[0052] Adjusting plate 5-13 is located below the two first-position limit plates 5-12. The rear end of adjusting plate 5-13 is located at adjusting motor 5-14. The output shaft of adjusting motor 5-14 is connected to adjusting plate 5-13 via a shaft. Adjusting motor 5-14 is connected to an external power supply. The specific model of adjusting motor 5-14 is purchased and installed directly from the market according to actual usage requirements. Adjusting motor 5-14 is fixed to first-position support plate 4 with bolts.

[0053] Limiting mechanism 6, which is disposed on the operating table 2; the limiting mechanism 6 includes:

[0054] Limit motor 6-1, there are two limit motors 6-1, and they are fixed to the left and right sides of the rear of the upper surface of the operating table 2 by mounting plate 6-2 respectively; the limit motor 6-1 is connected to an external power supply; the specific model of the limit motor 6-1 is purchased and installed directly from the market according to the actual use requirements.

[0055] There are two limit screws 6-3, which are respectively connected to the output shaft of the limit motor 6-1. The other end of the limit screw 6-3 is screwed to the second mounting plate 6-4 through the bearing. The second mounting plate 6-4 is fixed to the front side of the upper surface of the operating table 2 by bolts.

[0056] Limiting rod 6-5, there are two limiting rods 6-5, and they are respectively fixed between the first mounting plate 6-2 and the second mounting plate 6-4 at the front and rear;

[0057] The second limiting plate 6-6, there are two of them, and they are respectively movably sleeved on the front and back of the left and right limiting rods 6-5. The right end of the rear second limiting plate 6-6 is screwed onto the right limiting screw 6-3, and the left end of the front second limiting plate 6-6 is screwed onto the left limiting screw 6-3.

[0058] The protective mechanism 7, of which there are two, is respectively located on the left and right sides of the operating table 2; each of the protective mechanisms 7 includes:

[0059] Second support plate 7-1 is fixed to the side wall of the operating table 2 by bolts; a moving groove 7-2 is provided on the second support plate 7-1; a third support plate 7-3 is fixed to the bottom outer side of the second support plate 7-1 by bolts, and the third support plate 7-3 is fixed to the base 1 by bolts.

[0060] The protective motor 7-4 is fixed in the movable slot 7-2 by bolts. The protective motor 7-4 is connected to an external power supply. The specific model of the protective motor 7-4 is purchased and installed directly from the market according to the actual use requirements.

[0061] The protective screw 7-5 is connected to the output shaft of the protective motor 7-4. The other end of the protective screw 7-5 is screwed into the movable groove 7-2 through a bearing. An internally threaded tube 7-6 is screwed onto the protective screw 7-5 and abuts against the movable groove 7-2.

[0062] The protective cover 7-7 is a semi-cylindrical structure. An arc-shaped groove 7-8 is opened on the inner side of the upper end of the protective cover 7-7. A second connecting rod 5-5 is fixed to the outer wall of the protective cover 7-7 by bolts.

[0063] Support rod 7-9 is fixed to the internally threaded pipe 7-6 by bolts. The upper end of support rod 7-9 is fixed to electric telescopic rod 7-10 by bolts. Electric telescopic rod 7-10 is connected to an external power source. The specific model of electric telescopic rod 7-10 is purchased and installed directly from the market according to actual usage requirements. The movable end of electric telescopic rod 7-10 is connected to connecting rod 5-5.

[0064] The top plate 8 is located below the second support bar 5-3. The bottom left and right sides of the top plate 8 are equipped with the second electric telescopic rod 9. The second electric telescopic rod 9 is connected to an external power source. The specific model of the second electric telescopic rod 9 is purchased and installed directly from the market according to the actual use requirements. The movable end of the second electric telescopic rod 9 is connected to the top plate 8 and the second electric telescopic rod 9 is fixed on the base 1.

[0065] When using this utility model, the concrete test block is placed on the ball bearing 5-2 on the operating table 2. According to the required measurement position, the concrete test block is moved to the force application point of the hydraulic press using the ball bearing 5-2.

[0066] Start the left and right limit motors 6-1, causing the limit screws 6-3 to rotate. Under the action of the limit rods 6-5, the two second limit plates 6-6 move inward to limit the concrete test block.

[0067] Start the lifting motors 5-9 one by one, causing the lifting screws 5-8 to rotate. Under the action of the first limit plate 5-12, the lifting block 5-7 descends. When the adjusting groove 5-11 on the adjusting block 5-10 is engaged in the adjusting plate 5-13, turn off the lifting motors 5-9 and start the adjusting motors 5-14, causing the adjusting plate 5-13 to rotate. This rotates the second connecting rod 5-5, the first connecting rod 5-4, the first support bar 5-1, and the second support bar 5-3. The first support bar 5-1 is at the bottom, and the second support bar 5-3 is at the top. Start the lifting motors 5-9 again, causing the second support bar 5-3 to rise and rest against the bottom of the concrete test block. Repeat the above steps to swap the positions of the first support bar 5-1 and the second support bar 5-3 one by one, so that the bottom of the concrete test block is flat.

[0068] Activate the second electric telescopic rod 9 to extend the top plate 8 and support the bottom of the first support bar 5-1; activate the protective motor 7-4 to rotate the protective screw 7-5, which in turn moves the internal threaded tube 7-6, causing the protective cover 7-7 to move. The two protective covers 7-7 are then joined together to form a complete cover. Activate the first electric telescopic rod 7-10 to lower the protective cover 7-7, allowing it to cover the concrete test block; activate the hydraulic rod 3 to lower the concrete test block for a compressive strength test, while the protective cover 7-7 prevents debris from flying.

[0069] Compared with the prior art, the beneficial effects of this utility model are:

[0070] 1. The concrete test block is equipped with ball bearings 5-2, which allow the concrete test block to be moved according to the required measurement position and placed at the point of force application of the hydraulic press, thus improving its practicality.

[0071] 2. The ball bearing 5-2 on support bar 5-1 can be replaced with support bar 5-3 to prevent the concrete specimen from moving during testing, thus making the test results more accurate.

[0072] 3. A protective mechanism 7 is provided. The No. 1 electric telescopic rod 7-10 drives the protective cover 7-7 to descend, so that the protective cover 7-7 covers the concrete test block for compression testing. The protective cover 7-7 prevents debris from flying.

[0073] 4. A top plate 8 is provided. When the second electric telescopic rod 9 is activated, the top plate 8 extends to support the bottom of the first support bar 5-1, further improving the support effect.

[0074] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A concrete test block compression testing device, comprising a base (1), an operating table (2), a hydraulic rod (3) and a first support plate (4); the base (1) is provided with the operating table (2), the rear side of the operating table (2) is fixedly provided with a mounting frame, the front end of the mounting frame is fixedly provided with the hydraulic rod (3), the hydraulic rod (3) is connected with an external power supply; the rear side between the base (1) and the operating table (2) is fixedly provided with the first support plate (4); characterized in that It also comprises: an adjusting mechanism (5), the number of the adjusting mechanism (5) is several, and the adjusting mechanism (5) is respectively arranged between the operating table (2) and the base (1), a square groove is formed in the operating table (2), and the adjusting mechanism (5) is arranged in the square groove; the adjusting mechanism (5) comprises: a first support bar (5-1), the first support bar (5-1) is arranged in the square groove; a plurality of balls (5-2), the balls (5-2) are respectively and rollingly arranged on the first support bar (5-1); a second support bar (5-3), the second support bar (5-3) is arranged below the first support bar (5-1); a first connecting rod (5-4) is fixedly arranged between the first support bar (5-1) and the second support bar (5-3) in front and back; the outer side of the ring wall of the two first connecting rods (5-4) is fixedly provided with a second connecting rod (5-5); a lifting block (5-7), the lifting block (5-7) is rotatably connected with the second connecting rod (5-5) on the front side through a bearing, a lifting screw rod (5-8) is threadedly connected in the lifting block (5-7), and the upper end of the lifting screw rod (5-8) is rotatably connected with the bottom of the operating table (2) through a bearing; a lifting motor (5-9) is fixedly arranged on the base (1), the lifting motor (5-9) is connected with an external power supply; the output shaft of the lifting motor (5-9) is connected with the lifting screw rod (5-8); an adjusting block (5-10), the adjusting block (5-10) is fixedly arranged on the second connecting rod (5-5) on the rear side, and an adjusting groove (5-11) is formed in the rear side of the adjusting block (5-10); a first limiting plate (5-12), the number of the first limiting plate (5-12) is two, and the first limiting plate (5-12) is arranged on the left and right sides of the adjusting block (5-10), respectively; the upper end of the first limiting plate (5-12) is fixedly arranged on the bottom of the operating table (2); an adjusting plate (5-13), the adjusting plate (5-13) is arranged below the two first limiting plates (5-12), and the rear end of the adjusting plate (5-13) is arranged on an adjusting motor (5-14); the output shaft of the adjusting motor (5-14) is connected with the adjusting plate (5-13) through a shaft, and the adjusting motor (5-14) is connected with an external power supply; the adjusting motor (5-14) is fixedly arranged on the first support plate (4); a limiting mechanism (6), the limiting mechanism (6) is arranged on the operating table (2); a protection mechanism (7), the number of the protection mechanism (7) is two, and the protection mechanism (7) is arranged on the left and right sides of the operating table (2), respectively.

2. The apparatus of claim 1, wherein: The bottom of the first support bar (5-1) is fixedly provided with a reinforcing rod (5-6), and the bottom of the reinforcing rod (5-6) is fixedly arranged on the second support bar (5-3).

3. The apparatus of claim 1, wherein: The limiting mechanism (6) comprises: Positioning motor (6-1), the number of the positioning motor (6-1) is two, and is fixed in the upper surface rear side left and right of the operating platform (2) through the first mounting plate (6-2) respectively; Positioning screw rod (6-3), the number of the positioning screw rod (6-3) is two, and is connected with the output shaft of the positioning motor (6-1) respectively, the other end of the positioning screw rod (6-3) is rotatably connected with the second mounting plate (6-4) through the bearing, and the second mounting plate (6-4) is fixed on the front side of the upper surface of the operating platform (2); Positioning rod (6-5), the number of the positioning rod (6-5) is two, and is fixed between the front and rear first mounting plate (6-2) and second mounting plate (6-4) respectively; Second limiting plate (6-6), the number of the second limiting plate (6-6) is two, and is movably sleeved on the front and rear of the left and right positioning rod (6-5), the right end of the rear second limiting plate (6-6) is rotatably sleeved on the right positioning screw rod (6-3) through the thread, and the left end of the front second limiting plate (6-6) is rotatably sleeved on the left positioning screw rod (6-3) through the thread.

4. The apparatus of claim 1, wherein: The protection mechanism (7) comprises: Second support plate (7-1), the second support plate (7-1) is fixed on the side wall of the operating platform (2), and the moving groove (7-2) is formed in the second support plate (7-1); the protection motor (7-4) is fixed in the moving groove (7-2), and the protection motor (7-4) is connected with the external power supply; Protection screw rod (7-5), the protection screw rod (7-5) is connected with the output shaft of the protection motor (7-4), and the other end of the protection screw rod (7-5) is rotatably connected with the moving groove (7-2) through the bearing; the internal threaded tube (7-6) is rotatably sleeved on the protection screw rod (7-5) through the thread, and the internal threaded tube (7-6) is arranged in the moving groove (7-2); Protection cover (7-7), the protection cover (7-7) is a semicylindrical structure, an arc-shaped groove (7-8) is formed in the inner side of the upper end of the protection cover (7-7), and the second connecting rod (5-5) is fixed on the outer side wall of the protection cover (7-7); Support rod (7-9), the support rod (7-9) is fixed on the internal threaded tube (7-6), and the upper end of the support rod (7-9) is fixed with the first electric telescopic rod (7-10); the first electric telescopic rod (7-10) is connected with the second connecting rod (5-5).

5. A device for testing the compressive strength of a concrete test block according to claim 4 wherein: The bottom outer side of the second support plate (7-1) is fixed with the third support plate (7-3), and the third support plate (7-3) is fixed on the base (1).

6. The apparatus of claim 1, wherein: The top plate (8) is arranged below the second support strip (5-3), the bottom left and right of the top plate (8) are provided with the second electric telescopic rod (9), and the second electric telescopic rod (9) is connected with the external power supply; the movable end of the second electric telescopic rod (9) is connected with the top plate (8), and the second electric telescopic rod (9) is fixed on the base (1).

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