Concrete breaking strength detection device

Abstract

The utility model relates to the technical field of detection devices, in particular to a concrete flexural strength detection device which comprises a base, a chassis mounted at the top end of the base, a lower pressing plate mounted at the top end of the chassis, side plates mounted on two sides of the lower pressing plate, a sliding frame fixedly connected to the outer sides of the side plates, and a sliding groove formed in the sliding frame. A lead screw is rotationally connected into the sliding groove and is in threaded connection with a first sliding rod, the first sliding rod is in sliding connection with the sliding groove, a baffle is installed at the end of the first sliding rod and abuts against the end of the concrete test block, and a scale strip is arranged on the top face of the first sliding rod; the position of the baffle is adjusted through the length adjusting structure, the placing position of the concrete test block is positioned through the baffle, the concrete test block can be quickly and accurately positioned at the position required by detection, the concrete test block does not need to be moved and adjusted back and forth, time and labor are saved, the working efficiency is improved, and the measurement accuracy is improved.

Description

Technical Field

[0001] The utility model relates to a detection device, in particular to a concrete flexural strength detection device, belonging to the technical field of detection devices. Background Art

[0002] Concrete is one of the most important civil engineering materials in contemporary times. In order to ensure the construction quality of the project, it is necessary to test the strength of concrete, among which flexural strength is one of the test items. For materials such as pavement cement concrete and permeable concrete, flexural strength is an important quality control indicator, making the test an indispensable link. After placing the concrete test block on the universal testing machine, it is necessary to measure the reserved length on both sides of the concrete test block on the universal testing machine.

[0003] However, in traditional concrete flexural strength testing equipment, measurements are taken manually with a tape measure, and the position of the concrete test block is slowly adjusted based on the measured data. Since the weight of the concrete test block is relatively high, the method of manual measurement and adjustment after the error is corrected is inconvenient for adjusting the reserved length on both sides of the measurement. It is laborious and time-consuming, the work efficiency is not high enough, and the measurement accuracy is not high enough. Utility Model Content

[0004] The purpose of the utility model is to provide a concrete flexural strength testing device in order to solve the above-mentioned problem. The position of the baffle is adjusted by a length adjustment structure, and the placement position of the concrete test block is positioned by the baffle. The concrete test block can be quickly and accurately positioned at the position required for the test without moving the concrete test block back and forth to adjust it, which saves time and effort, improves work efficiency, and improves measurement accuracy.

[0005] The cam is provided with a plurality of movable parts, and the movable part has a plurality of movable parts, and the movable part has a plurality of movable parts.

[0006] Preferably, the length adjustment structure further includes a swivel, and the end of the screw rod is fixedly connected to the swivel.

[0007] Preferably, the first sliding bar and the baffle are perpendicular to each other, and the first sliding bar and the concrete test block maintain a parallel position relationship.

[0008] Preferably, the anti-collision structure includes a second sliding rod, the end of the first sliding rod is fixedly connected to the second sliding rod, the second sliding rod is slidably connected to the baffle, the end of the second sliding rod is in a "T" shape, a second spring is sleeved on the second sliding rod, one end of the second spring is fixedly connected to the side wall of the baffle, and the other end of the second spring is fixedly connected to the end of the second sliding rod.

[0009] Preferably, a connecting block is installed at the bottom end of the first sliding rod, a second guide rod is fixedly connected to the connecting block, and the second guide rod is slidably connected to the baffle.

[0010] Preferably, the reset structure includes a fixed sleeve, and the two side panels are fixedly connected to the fixed sleeve, a first guide rod is slidably connected in the fixed sleeve, the top end of the first guide rod is fixedly connected to a mounting block, and the mounting block is fixedly connected to the side wall of the upper pressure plate.

[0011] Preferably, a first spring is sleeved on the first guide rod, one end of the first spring is fixedly connected to the mounting block, and the other end of the first spring abuts against the fixing sleeve.

[0012] Preferably, two bearing seats are installed on both sides of the lower pressure plate and the upper pressure plate, and are symmetrically distributed on both sides. A rotating shaft is rotatably connected between the two symmetrical bearing seats, and rollers are sleeved on the rotating shaft. The rollers on the lower pressure plate and the upper pressure plate are staggered.

[0013] Preferably, the clamp structure further includes a handle, and handles are installed on both ends of the lower pressing plate.

[0014] Preferably, two mounting seats are fixed to the top of the base, the tops of the mounting seats are fixedly connected to support columns, the tops of two support columns are fixedly connected to two other mounting seats, the tops of the two mounting seats at the tops of the support columns are connected to a support plate, and the hydraulic cylinder passes through the support plate.

[0015] The beneficial effects of the utility model are as follows: a sliding frame is fixedly connected to the outer side of the side plate, a sliding slot is provided in the sliding frame, a screw rod is rotatably connected in the sliding frame, the screw rod is threadedly connected to the first sliding rod, the first sliding rod is slidably connected to the sliding slot, a baffle is installed at the end of the first sliding rod, the baffle contacts the end of the concrete test block, and a scale bar is provided on the top surface of the first sliding rod; according to the length of the concrete test block to be detected, the swivel ring is rotated, the swivel ring drives the screw rod to rotate, the screw rod drives the first sliding rod to slide in the sliding frame, the first sliding rod drives the baffle to move back and forth, and then according to the scale bar on the first sliding rod, the baffle is adjusted to the position of the required reserved length, and then the concrete test block is placed on the top of the lower pressure plate and pushed backward to make the end of the concrete test block contact the baffle, so that the concrete test block can be quickly and accurately positioned at the position required for detection, without moving the concrete test block back and forth to adjust it, which saves time and effort, improves work efficiency, and improves measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 for Figure 1 An enlarged schematic diagram of part A is shown;

[0018] Figure 3 It is a cross-sectional view of the length adjustment structure of the utility model;

[0019] Figure 4 for Figure 3 An enlarged schematic diagram of part B is shown.

[0020] In the figure: 1. base; 2. chassis; 3. fixture structure; 301. lower pressure plate; 302. bearing seat; 303. roller; 304. rotating shaft; 305. handle; 306. upper pressure plate; 4. side plate; 5. hydraulic cylinder; 6. scale bar; 7. reset structure; 701. mounting block; 702. first guide rod; 703. first spring; 704. fixing sleeve; 8. length adjustment structure; 801. sliding frame; 802. first sliding rod; 803. swivel; 804. screw rod; 805. sliding groove; 806. baffle; 9. anti-collision structure; 901. connecting block; 902. second guide rod; 903. second sliding rod; 904. second spring; 10. mounting seat; 11. support column; 12. support plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 4 As shown, a concrete flexural strength testing device comprises a base 1, a chassis 2 is installed on the top of the base 1, a fixture structure 3 is installed on the top of the chassis 2, the fixture structure 3 comprises a lower pressing plate 301, a lower pressing plate 301 is installed on the top of the chassis 2, side plates 4 are installed on both sides of the lower pressing plate 301, a length adjustment structure 8 is fixedly connected to the outer side of one of the side plates 4, the length adjustment structure 8 comprises a sliding frame 801, a sliding frame 801 is fixedly connected to the outer side of the side plate 4, a sliding groove 805 is provided in the sliding frame 801, a screw rod 804 is rotatably connected in the sliding frame 801, the screw rod 804 is threadedly connected to a first sliding rod 802, the first sliding rod 802 is slidably connected to the sliding groove 805, a baffle 806 is installed at the end of the first sliding rod 802, the baffle 806 abuts against the end of the concrete test block, and the top surface of the first sliding rod 802 is provided with a carved The scale bar 6, the lower pressure plate 301 is connected to the upper pressure plate 306 above the reset structure 7, the top of the upper pressure plate 306 is in contact with the hydraulic cylinder 5, and the end of the first slide bar 802 is also installed with an anti-collision structure 9; rotate the swivel 803, the swivel 803 drives the screw rod 804 to rotate, the screw rod 804 drives the first slide bar 802 to slide in the slide frame 801, the first slide bar 802 drives the second guide rod 902 and the baffle 806 to move back and forth, and then according to the scale bar 6 at the top of the first slide bar 802, the baffle 806 is adjusted to the position of the required reserved length, and then the concrete test block is placed on the top of the lower pressure plate 301, and the concrete test block is pushed backward so that the end of the concrete test block is in contact with the baffle 806, so that the concrete test block can be quickly and accurately positioned at the position required for the test, without moving the concrete test block back and forth to adjust the concrete test block, saving time and effort, improving work efficiency, and improving measurement accuracy.

[0023] As a technical optimization solution of the utility model, the length adjustment structure 8 also includes a swivel 803, and the end of the screw rod 804 is fixedly connected with the swivel 803; rotating the swivel 803 drives the screw rod 804 to rotate, thereby facilitating the operation of the screw rod 804.

[0024] As a technical optimization solution of the utility model, the first slide bar 802 and the baffle 806 are perpendicular to each other, and the first slide bar 802 maintains a parallel position relationship with the concrete test block; the baffle 806 is made to contact the end of the concrete test block, so that the baffle 806 has a more precise effect on the auxiliary flow measurement reserved length.

[0025] As a technical optimization scheme of the present utility model, the anti-collision structure 9 includes a second slide bar 903, the end of the first slide bar 802 is fixedly connected with the second slide bar 903, the second slide bar 903 is slidably connected with the baffle 806, the end of the second slide bar 903 is in a "T" shape, and the second slide bar 903 is sleeved with a second spring 904, one end of the second spring 904 is fixedly connected to the side wall of the baffle 806, and the other end of the second spring 904 is fixedly connected to the end of the second slide bar 903; during the detection of the concrete test block, the instantaneous pressure of the hydraulic cylinder 5 will push the concrete test block forward or backward, and the concrete test block will instantly collide with the baffle 806, pushing the baffle 806 to slide on the second slide bar 903 and the second guide rod 902, and at the same time the resistance spring contracts. When the concrete test block no longer resists the baffle 806, the spring resets, driving the baffle 806 to slide back and reset, thereby effectively preventing the concrete test block from colliding with the baffle 806 during detection and causing damage to the baffle 806.

[0026] As a technical optimization solution of the utility model, a connecting block 901 is installed at the bottom end of the first sliding rod 802, and a second guide rod 902 is fixedly connected to the connecting block 901, and the second guide rod 902 is slidably connected to the baffle 806; the second guide rod 902 assists the baffle 806 in sliding, and because the second guide rod 902 and the second sliding rod 903 together form a two-point positioning relationship, the baffle 806 is effectively prevented from rotating on the second sliding rod 903, thereby enhancing the adjustment force of the anti-collision structure 9 on the baffle 806.

[0027] As a technical optimization scheme of the utility model, the reset structure 7 includes a fixed sleeve 704, and the two side panels 4 are fixedly connected with the fixed sleeve 704. The first guide rod 702 is slidably connected in the fixed sleeve 704. The top of the first guide rod 702 is fixedly connected with a mounting block 701. The mounting block 701 is fixedly connected to the side wall of the upper pressure plate 306. The first guide rod 702 is sleeved with a first spring 703, one end of the first spring 703 is fixedly connected to the mounting block 701, and the other end of the first spring 703 abuts against the fixed sleeve 704.

[0028] As a technical optimization solution of the utility model, two bearing seats 302 are installed on both sides of the lower pressing plate 301 and the upper pressing plate 306, and the two sides are symmetrically distributed. A rotating shaft 304 is rotatably connected between the two symmetrical bearing seats 302, and a roller 303 is sleeved on the rotating shaft 304. The rollers 303 on the lower pressing plate 301 and the upper pressing plate 306 are staggered. Then, a concrete test block is placed on the top of the lower pressing plate 301, and then the concrete test block is pushed forward, and the concrete test block drives the lower pressing plate 30 1 rotates, and the rotating shaft 304 drives the roller 303 to rotate. When the roller 303 rotates, the concrete test block is pushed forward more smoothly. When the concrete test block is under the roller 303 on the upper pressing plate 306, since the concrete test block resists the roller 303, the concrete test block drives the roller 303 to rotate while moving forward, and the roller 303 drives the rotating shaft 304 to rotate. The movement of the concrete is completed by the rotation of the roller 303 on the upper and lower pressing plates 301, which saves time and effort and improves work efficiency.

[0029] As a technical optimization solution of the present invention, the clamp structure 3 also includes a handle 305, and handles 305 are installed at both ends of the lower pressing plate 301, which is convenient for operating and controlling the lower pressing plate 301 and provides convenience for operation.

[0030] As a technical optimization solution of the utility model, two mounting seats 10 are fixed to the top of the base 1, and the tops of the mounting seats 10 are fixedly connected to support columns 11. The tops of the two support columns 11 are fixedly connected to two other mounting seats 10, and the tops of the two mounting seats 10 at the tops of the support columns 11 are connected to a support plate 12, and the hydraulic cylinder 5 passes through the support plate 12, providing supporting force for the hydraulic cylinder 5, making the equipment more stable during operation.

[0031] When the utility model is used, firstly, according to the length of the concrete test block to be tested, the swivel 803 is rotated, the swivel 803 drives the screw rod 804 to rotate, the screw rod 804 drives the first slide bar 802 to slide in the slide frame 801, the first slide bar 802 drives the second guide rod 902 and the baffle plate 806 to move forward and backward, then according to the scale bar 6 at the top of the first slide bar 802, the baffle plate 806 is adjusted to the position of the required reserved length, and then the concrete test block is placed on the top of the lower pressing plate 301, and then the concrete test block is pushed forward, the concrete test block drives the rotating shaft 304 on the lower pressing plate 301 to rotate, and the rotating shaft 304 drives the roller 3 03 rotates, and the concrete test block is pushed forward more smoothly while the roller 303 rotates. When the concrete test block is under the roller 303 on the upper pressure plate 306, since the concrete test block resists the roller 303, the concrete test block drives the roller 303 to rotate while moving forward, and the roller 303 drives the rotating shaft 304 to rotate. The movement of the concrete is completed by the rotation of the roller 303 on the upper and lower pressure plates 301. When the end of the concrete test block resists the baffle 806, the concrete test block is no longer pushed, so that the concrete test block can be quickly and accurately positioned at the position required for detection, without the need to move the concrete test block back and forth to adjust the concrete test block, saving time and effort, and improving The working efficiency is improved and the measurement accuracy is improved; when the position of the concrete test block is fixed, the hydraulic cylinder 5 is started, and the hydraulic cylinder 5 drives the upper pressing plate 306 to move downward, and at the same time drives the first guide rod 702 to slide downward in the fixing sleeve 704, and the first guide rod 702 drives the spring to contract until the upper pressing plate 306 is pressed against the top of the concrete test block, and then the test is started. When the test is completed, the hydraulic cylinder 5 is closed to remove the concrete test block, and the upper pressing plate 306 loses the resistance force. Under the action of the first spring 703 returning to the original position, the first guide rod 702 is driven to slide upward, and at the same time, the upper pressing plate 306 is driven to move upward so as to place the concrete next time. The test block, through the reset structure 7, makes the adjustment of the distance between the upper pressure plate 306 and the lower pressure plate 301 more flexible and simple, thereby improving work efficiency; during the detection of the concrete test block, the instantaneous pressure of the hydraulic cylinder 5 will push the concrete test block forward or backward, and the concrete test block will instantly collide with the baffle 806, pushing the baffle 806 to slide on the second slide rod 903 and the second guide rod 902, and at the same time the resistance spring contracts. When the concrete test block no longer resists the baffle 806, the spring resets, driving the baffle 806 to slide back and reset, thereby effectively avoiding the concrete test block from colliding with the baffle 806 during detection and causing damage to the baffle 806.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A concrete flexural strength testing device, comprising a base (1), characterized in that: A chassis (2) is installed at the top of the base (1), a clamp structure (3) is installed at the top of the chassis (2), the clamp structure (3) includes a lower pressure plate (301), a lower pressure plate (301) is installed at the top of the chassis (2), side plates (4) are installed on both sides of the lower pressure plate (301), one of the side plates (4) is fixedly connected to the outer side of a length adjustment structure (8), the length adjustment structure (8) includes a slide frame (801), the outer side of the side plate (4) is fixedly connected to the slide frame (801), a slide groove (805) is provided in the slide frame (801), and a rotation groove (805) is provided in the slide frame (801). The first slide bar (802) is slidably connected to a screw rod (804), the screw rod (804) is threadedly connected to the first slide bar (802), the first slide bar (802) is slidably connected to the slide groove (805), a baffle (806) is installed at the end of the first slide bar (802), the baffle (806) abuts against the end of the concrete test block, the top surface of the first slide bar (802) is provided with a scale bar (6), the lower pressure plate (301) is connected to the upper pressure plate (306) above through a reset structure (7), the top of the upper pressure plate (306) abuts against the hydraulic cylinder (5), and the end of the first slide bar (802) is also installed with an anti-collision structure (9).

2. A concrete flexural strength testing device according to claim 1, characterized in that: The length adjustment structure (8) further comprises a swivel (803), and the end of the screw rod (804) is fixedly connected to the swivel (803).

3. A concrete flexural strength testing device according to claim 1, characterized in that: The first sliding bar (802) and the baffle (806) are perpendicular to each other, and the first sliding bar (802) and the concrete test block maintain a parallel position relationship.

4. A concrete flexural strength testing device according to claim 1, characterized in that: The anti-collision structure (9) comprises a second sliding bar (903), the end of the first sliding bar (802) is fixedly connected to the second sliding bar (903), the second sliding bar (903) is slidably connected to the baffle (806), the end of the second sliding bar (903) is in a "T"-shaped structure, a second spring (904) is sleeved on the second sliding bar (903), one end of the second spring (904) is fixedly connected to the side wall of the baffle (806), and the other end of the second spring (904) is fixedly connected to the end of the second sliding bar (903).

5. A concrete flexural strength testing device according to claim 4, characterized in that: A connecting block (901) is installed at the bottom end of the first sliding rod (802), a second guide rod (902) is fixedly connected to the connecting block (901), and the second guide rod (902) is slidably connected to the baffle (806).

6. A concrete flexural strength testing device according to claim 1, characterized in that: The reset structure (7) comprises a fixed sleeve (704), the two side plates (4) are fixedly connected with the fixed sleeve (704), a first guide rod (702) is slidably connected inside the fixed sleeve (704), a mounting block (701) is fixedly connected to the top end of the first guide rod (702), and the mounting block (701) is fixedly connected to the side wall of the upper pressure plate (306).

7. A concrete flexural strength testing device according to claim 6, characterized in that: A first spring (703) is sleeved on the first guide rod (702), one end of the first spring (703) is fixedly connected to the mounting block (701), and the other end of the first spring (703) abuts against the fixing sleeve (704).

8. A concrete flexural strength testing device according to claim 6, characterized in that: Two bearing seats (302) are installed on both sides of the lower pressure plate (301) and the upper pressure plate (306), and are symmetrically distributed on both sides. A rotating shaft (304) is rotatably connected between the two symmetrical bearing seats (302), and rollers (303) are sleeved on the rotating shaft (304). The rollers (303) on the lower pressure plate (301) and the upper pressure plate (306) are staggered.

9. A concrete flexural strength testing device according to claim 8, characterized in that: The clamp structure (3) further comprises a handle (305), and handles (305) are installed at both ends of the lower pressing plate (301).

10. A concrete flexural strength testing device according to claim 1, characterized in that: Two mounting seats (10) are fixed on the top of the base (1), the tops of the mounting seats (10) are fixedly connected to support columns (11), the tops of the two support columns (11) are fixedly connected to two other mounting seats (10), the tops of the two mounting seats (10) on the tops of the support columns (11) are connected to a support plate (12), and the hydraulic cylinder (5) passes through the support plate (12).

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