Device for testing tensile property of constructional engineering building material

Abstract

The utility model relates to the technical field of building material performance testing, in particular to a building engineering building material tensile property testing device which comprises a back plate, the outer wall of the back plate is fixedly connected with an electric push rod, the output end of the electric push rod is fixedly connected with a first moving plate, and the upper surface of the first moving plate is fixedly connected with an L-shaped plate. The side wall of the L-shaped plate is fixedly connected with a clamping pin. A first connecting block is fixedly connected to the side wall of the first moving plate, a first limiting frame is fixedly connected to the face, away from the first moving plate, of the first connecting block, a second moving plate is arranged on the side, close to the electric push rod, of the back plate, and an inclined groove is formed in the side wall of the second moving plate; and the side wall of the second moving plate is fixedly connected with a second connecting block. According to the utility model, the protective net can be synchronously stretched up and down and left and right at the same time, so that the situation of multiple times of stretching and multiple times of detection is avoided, and the efficiency is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of building material performance test, especially relate to a building engineering building material tensile property testing device. BACKGROUND

[0002] The building engineering building material tensile property testing device can accurately test the tensile resistance of various building materials such as reinforcing steel bars, steel strands, and protective nets. It can simulate the tensile force that building materials bear in actual building structures, accurately measure and record the data of building materials during the stretching process, and intuitively present their tensile resistance performance, thereby providing strong support for material selection and quality control in building engineering.

[0003] Chinese utility model patent CN202121901059.X discloses a building engineering building material tensile property testing device, which comprises an electric control box and a rack. The rack is arranged in a U shape and is fixedly installed at the upper end of the electric control box. L-shaped plates are installed at the inner upper ends of the rack and the upper end of a moving motor. A T-shaped groove is horizontally formed at the upper end of the L-shaped plate, and a T-shaped block is slidably arranged inside the T-shaped groove. A moving plate is connected to the lower end of the T-shaped block. A screw rod assembly is horizontally installed between the L-shaped plate and the upper end of the screw rod assembly. The protective net can achieve good protection effect in the erection of scaffolds, elevator shafts, and openings in building engineering. In this case, the protective net is clamped in the upper and lower clamping structures. With the movement of the moving motor in the electric sliding rail, the tensile resistance of the protective net is detected. The detection structure is clear and accurate.

[0004] However, the above detection device can only detect the tensile resistance of two sides of the protective net at a time. Since the protective net has four sides, it needs to be detected again for the tensile resistance of the other two sides, which makes the detection work more tedious and reduces the efficiency. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model provides a building engineering building material tensile property testing device, which mainly solves the technical problem that the tensile resistance of two sides of the protective net can only be detected at a time. Since the protective net has four sides, it needs to be detected again for the tensile resistance of the other two sides, which makes the detection work more tedious and reduces the efficiency.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a kind of building engineering building material tensile property testing device, including backboard, the outer wall of the backboard is fixedly connected with electric push rod, the output end of the electric push rod is fixedly connected with first moving plate, the upper surface of the first moving plate is fixedly connected with L-shaped plate, the lateral wall of the L-shaped plate is fixedly connected with pin, the lateral wall of the first moving plate is fixedly connected with first connecting block, the side of the first connecting block away from first moving plate is fixedly connected with first limit frame, the side of the backboard close to electric push rod is provided with second moving plate, the lateral wall of the second moving plate is equipped with inclined slot, the pin is located in the interior of inclined slot, the lateral wall of the second moving plate is fixedly connected with second connecting block, the side of the second connecting block away from second moving plate is fixedly connected with second limit frame, the lateral wall of the backboard is fixedly connected with third limit frame, the lateral wall of the backboard is fixedly connected with fourth limit frame, the lateral wall of first limit frame, second limit frame, third limit frame and fourth limit frame is all provided with clamping assembly.

[0007] By adopting the above technical scheme, the upper and lower and left and right of the protective net can be stretched synchronously, and the multiple stretching and multiple detection situation can be avoided, so that the efficiency is higher.

[0008] As a further description of the above technical scheme:

[0009] The clamping assembly includes threaded rod, the lateral wall of first limit frame, second limit frame, third limit frame and fourth limit frame is movably installed with threaded rod, the outer surface of the threaded rod is threadedly connected with clamping plate, the lateral wall of the threaded rod is fixedly connected with rotary disc, the lateral wall of the rotary disc away from threaded rod is fixedly connected with handle.

[0010] By adopting the above technical scheme, the handle can drive the rotary disc and threaded rod to rotate, and then the clamping plate can be moved to the direction close to the backboard, and then the protective net can be clamped and fixed.

[0011] As a further description of the above technical scheme:

[0012] The lateral wall of the backboard is equipped with first moving slot, the first connecting block is located in the interior of first moving slot, the lateral wall of the backboard is equipped with second moving slot, and the second connecting block is located in the interior of second moving slot.

[0013] By adopting the above technical scheme, the first moving slot provides the moving position for the first connecting block, and the second moving slot provides the moving position for the second connecting block.

[0014] As a further description of the above technical scheme:

[0015] The side wall of the first limiting frame is fixedly connected with a first marker rod, the side wall of the second limiting frame is fixedly connected with a second marker rod, and the side wall of the back plate is provided with a plurality of scale grooves.

[0016] By adopting the above technical scheme, the first limiting frame can drive the first marker rod to move when the first limiting frame moves, the second limiting frame can drive the second marker rod to move when the second limiting frame moves, and the extent to which the anti-skid net is stretched to be broken can be calculated according to the change in distance of the first marker rod and the second marker rod on the scale grooves.

[0017] As a further description of the above technical scheme:

[0018] The side wall of the back plate is fixedly connected with a protection frame, the inner wall of the protection frame is movably installed with a door body, and the side wall of the door body is fixedly connected with a pull ring.

[0019] By adopting the above technical scheme, the protection frame is used to prevent the fragments of the anti-skid net from splashing and causing injury after the anti-skid net is stretched and broken, and the door body can be opened by pulling the pull ring.

[0020] As a further description of the above technical scheme:

[0021] The side wall of the back plate is fixedly connected with a stabilizing frame, the number of the stabilizing frame is two, the lower surface of the stabilizing frame is movably installed with a plurality of universal wheels.

[0022] By adopting the above technical scheme, the stabilizing frame is used to provide stability for the back plate, reduce the gravity center position of the back plate, and the universal wheels are used to enable the back plate to be moved, thereby facilitating transportation.

[0023] As a further description of the above technical scheme:

[0024] The side wall of the stabilizing frame is fixedly connected with a push handle, the outer surface of the push handle is provided with a plurality of anti-skid grooves.

[0025] By adopting the above technical scheme, the push handle can make the back plate more easily pushed, and the anti-skid grooves can increase the friction between the push handle and the hand, thereby avoiding hand slipping.

[0026] By adopting the above technical scheme, the building engineering building material tensile property testing device has at least the following beneficial effects:

[0027] Compared with the prior art, the building engineering building material tensile resistance performance testing device, through the electric push rod, the first moving plate, the L-shaped plate, the bayonet lock, the first connecting block, the first limiting frame, the second moving plate, the chute, the second connecting block, the second limiting frame and the clamping assembly; when the tensile resistance performance of the protective net needs to be tested, the clamping assembly is driven to fix the protective net, and then the electric push rod is driven to work to drive the first moving plate to move away from the electric push rod, and then the first connecting block and the first limiting frame are driven to move away from the electric push rod, and then the left and right sides of the protective net can be stretched, and at the same time, the first moving plate drives the L-shaped plate and the bayonet lock to move away from the electric push rod during movement, and the second moving plate is driven to move upward due to the existence of the chute, and then the second connecting block and the second limiting frame are driven to move upward, and then the upper and lower sides of the protective net can be stretched, so that the upper, lower, left and right sides of the protective net can be stretched synchronously, and the situation of multiple stretching and multiple testing is avoided. Compared with the existing tensile resistance performance testing device, the building engineering building material tensile resistance performance testing device can stretch the upper, lower, left and right sides of the protective net synchronously, avoid the situation of multiple stretching and multiple testing, and is more efficient.

[0028] Compared with the prior art, the building engineering building material tensile resistance performance testing device, through the first limiting frame, the second limiting frame, the first flag rod, the second flag rod and the scale groove; the first limiting frame can drive the first flag rod to move when moving, and the second limiting frame can drive the second flag rod to move when moving, and the change of the distance of the first flag rod and the second flag rod on the scale groove can calculate to what extent the anti-skid net is stretched to be broken. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 The overall structure of the building engineering building material tensile resistance performance testing device is shown in the whole structure of the building engineering building material tensile resistance performance testing device;

[0030] Figure 2 The overall structure of the building engineering building material tensile resistance performance testing device is shown in the whole structure of the building engineering building material tensile resistance performance testing device;

[0031] Figure 3 The overall structure of the building engineering building material tensile resistance performance testing device is shown in the whole structure of the building engineering building material tensile resistance performance testing device; Figure 2 The structure of A in the middle is enlarged;

[0032] Figure 4 The overall structure of the building engineering building material tensile resistance performance testing device is shown in the whole structure of the building engineering building material tensile resistance performance testing device;

[0033] Figure 5 The first moving plate structure of the building engineering building material tensile resistance performance testing device is shown in the first moving plate structure of the building engineering building material tensile resistance performance testing device;

[0034] Figure 6 This is a structural diagram of the second moving plate of a testing device for the tensile properties of building materials in construction engineering, as proposed in this utility model.

[0035] Figure 7 This is a structural diagram of the back plate of a testing device for the tensile properties of building materials in construction engineering, as proposed in this utility model.

[0036] Legend:

[0037] 1. Back panel; 2. Electric push rod; 3. First moving plate; 4. L-shaped plate; 5. Locking pin; 6. First connecting block; 7. First limiting frame; 8. Second moving plate; 9. Inclined groove; 10. Second connecting block; 11. Second limiting frame; 12. Third limiting frame; 13. Fourth limiting frame; 14. Clamping assembly; 141. Threaded rod; 142. Clamping plate; 143. Turntable; 144. Handle; 15. First moving groove; 16. Second moving groove; 17. First marker rod; 18. Second marker rod; 19. Scale groove; 20. Protective frame; 21. Door body; 22. Pull ring; 23. Stabilizer; 24. Caster wheel; 25. Push handle; 26. Anti-slip groove. Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0039] Reference Figures 1-7 This utility model provides a tensile performance testing device for building materials in construction engineering: It includes a back plate 1, an electric push rod 2 fixedly connected to the outer wall of the back plate 1, a first movable plate 3 fixedly connected to the output end of the electric push rod 2, an L-shaped plate 4 fixedly connected to the upper surface of the first movable plate 3, and a locking pin 5 fixedly connected to the side wall of the L-shaped plate 4. A first connecting block 6 is fixedly connected to the side wall of the first movable plate 3, and a first limiting frame 7 is fixedly connected to the side of the first connecting block 6 away from the first movable plate 3. A second movable plate 8 is provided on the side of the back plate 1 near the electric push rod 2, and a groove 9 is formed on the side wall of the second movable plate 8, with the locking pin 5 located inside the groove 9. A second connecting block 10 is fixedly connected to the side wall of the second movable plate 8. A second limiting frame 11 is fixedly connected to the side of the second connecting block 10 away from the second movable plate 8. A third limiting frame 12 is fixedly connected to the side wall of the back plate 1. A fourth limiting frame 13 is fixedly connected to the side wall of the back plate 1. Clamping components 14 are provided on the side walls of the first limiting frame 7, the second limiting frame 11, the third limiting frame 12 and the fourth limiting frame 13.

[0040] When a tensile performance test is required on the protective net, the drive clamping assembly 14 fixes the protective net in place, thereby driving the electric push rod 2 to move the first moving plate 3 away from the electric push rod 2. This, in turn, moves the first connecting block 6 and the first limiting frame 7 away from the electric push rod 2, thus stretching the left and right sides of the protective net. At the same time, during the movement of the first moving plate 3, it also moves the L-shaped plate 4 and the locking pin 5 away from the electric push rod 2. Due to the presence of the inclined groove 9, the second moving plate 8 is moved upward, which in turn moves the second connecting block 10 and the second limiting frame 11 upward, thus stretching the top and bottom sides of the protective net. Therefore, the top, bottom, left, and right sides of the protective net can be stretched simultaneously, avoiding the occurrence of multiple stretching and testing.

[0041] Furthermore, the clamping assembly 14 includes a threaded rod 141. The threaded rod 141 is movably mounted on the side walls of the first limiting frame 7, the second limiting frame 11, the third limiting frame 12, and the fourth limiting frame 13. A clamping plate 142 is threadedly connected to the outer surface of the threaded rod 141. A turntable 143 is fixedly connected to the side wall of the threaded rod 141, and a handle 144 is fixedly connected to the side wall of the turntable 143 away from the threaded rod 141. Turning the handle 144 can rotate the turntable 143 and the threaded rod 141, thereby moving the clamping plate 142 towards the back plate 1, thus clamping and fixing the protective net.

[0042] The back plate 1 has a first moving groove 15 on its side wall, and a first connecting block 6 is located inside the first moving groove 15. The back plate 1 also has a second moving groove 16 on its side wall, and a second connecting block 10 is located inside the second moving groove 16. The first moving groove 15 provides a moving position for the first connecting block 6, and the second moving groove 16 provides a moving position for the second connecting block 10. A first marker rod 17 is fixedly connected to the side wall of the first limiting frame 7, and a second marker rod 18 is fixedly connected to the side wall of the second limiting frame 11. The back plate 1 has multiple scale grooves 19 on its side wall. When the first limiting frame 7 moves, it can drive the first marker rod 17 to move. When the second limiting frame 11 moves, it can drive the second marker rod 18 to move. Based on the change in the distance between the first marker rod 17 and the second marker rod 18 on the scale groove 19, the extent to which the anti-slip net will break when stretched can be calculated.

[0043] A protective frame 20 is fixedly connected to the side wall of the back panel 1. A door 21 is movably installed on the inner wall of the protective frame 20. A pull ring 22 is fixedly connected to the side wall of the door 21. The protective frame 20 is used to prevent injury caused by flying fragments after the protective net stretches and breaks. Pulling the pull ring 22 can open the door 21. The door 21 is made of high-strength and transparent glass material and will not be damaged by flying fragments.

[0044] Two stabilizing frames 23 are fixedly connected to the side wall of the back panel 1. Multiple casters 24 are movably mounted on the lower surface of each stabilizing frame 23. The stabilizing frames 23 provide stability to the back panel 1 and lower its center of gravity. The casters 24 allow the back panel 1 to be moved for easy transport. A push handle 25 is fixedly connected to the side wall of the stabilizing frame 23. Multiple anti-slip grooves 26 are formed on the outer surface of the push handle 25. The push handle 25 makes it easier to push the back panel 1, and the anti-slip grooves 26 increase the friction between the push handle 25 and the hand, preventing slippage.

[0045] Working principle:

[0046] When a tensile performance test is required on the protective net, the drive clamping assembly 14 fixes the protective net in place, thereby driving the electric push rod 2 to move the first moving plate 3 away from the electric push rod 2. This, in turn, moves the first connecting block 6 and the first limiting frame 7 away from the electric push rod 2, thus stretching the left and right sides of the protective net. At the same time, during the movement of the first moving plate 3, it also moves the L-shaped plate 4 and the locking pin 5 away from the electric push rod 2. Due to the presence of the inclined groove 9, the second moving plate 8 is moved upward, which in turn moves the second connecting block 10 and the second limiting frame 11 upward, thus stretching the top and bottom sides of the protective net. Therefore, the top, bottom, left, and right sides of the protective net can be stretched simultaneously, avoiding the occurrence of multiple stretching and testing.

[0047] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0048] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A testing device for the tensile properties of building materials in construction engineering, comprising a back plate (1), characterized in that: An electric push rod (2) is fixedly connected to the outer wall of the back plate (1). A first movable plate (3) is fixedly connected to the output end of the electric push rod (2). An L-shaped plate (4) is fixedly connected to the upper surface of the first movable plate (3). A locking pin (5) is fixedly connected to the side wall of the L-shaped plate (4). A first connecting block (6) is fixedly connected to the side wall of the first movable plate (3). A first limiting frame (7) is fixedly connected to the side of the first connecting block (6) away from the first movable plate (3). A second movable plate (8) is provided on the side of the back plate (1) near the electric push rod (2). The side wall of the plate is provided with a slanted groove (9), and the locking pin (5) is located inside the slanted groove (9). The side wall of the second moving plate (8) is fixedly connected to a second connecting block (10). The side of the second connecting block (10) away from the second moving plate (8) is fixedly connected to a second limiting frame (11). The side wall of the back plate (1) is fixedly connected to a third limiting frame (12). The side wall of the back plate (1) is fixedly connected to a fourth limiting frame (13). The side walls of the first limiting frame (7), the second limiting frame (11), the third limiting frame (12) and the fourth limiting frame (13) are all provided with clamping components (14).

2. The tensile performance testing device for building materials in construction engineering according to claim 1, characterized in that: The clamping assembly (14) includes a threaded rod (141). The first limiting frame (7), the second limiting frame (11), the third limiting frame (12) and the fourth limiting frame (13) are all movably mounted with threaded rods (141). The outer surface of the threaded rod (141) is threadedly connected to a clamping plate (142). The side wall of the threaded rod (141) is fixedly connected to a turntable (143). The side wall of the turntable (143) away from the threaded rod (141) is fixedly connected to a handle (144).

3. The tensile performance testing device for building materials in construction engineering according to claim 1, characterized in that: The back plate (1) has a first moving groove (15) on its side wall, and the first connecting block (6) is located inside the first moving groove (15). The back plate (1) has a second moving groove (16) on its side wall, and the second connecting block (10) is located inside the second moving groove (16).

4. The tensile performance testing device for building materials in construction engineering according to claim 1, characterized in that: The first limiting frame (7) is fixedly connected to the side wall of the first marker rod (17), the second limiting frame (11) is fixedly connected to the side wall of the second marker rod (18), and the back plate (1) is provided with a scale groove (19) on the side wall, and the number of scale grooves (19) is multiple.

5. The tensile performance testing device for building materials in construction engineering according to claim 1, characterized in that: A protective frame (20) is fixedly connected to the side wall of the back panel (1), and a door (21) is movably installed on the inner wall of the protective frame (20). A pull ring (22) is fixedly connected to the side wall of the door (21).

6. The tensile performance testing device for building materials in construction engineering according to claim 1, characterized in that: The back plate (1) is fixedly connected to a stabilizing frame (23) on its side wall. There are two stabilizing frames (23). The lower surface of the stabilizing frame (23) is movably mounted with casters (24). There are multiple casters (24).

7. The tensile performance testing device for building materials in construction engineering according to claim 6, characterized in that: The side wall of the stabilizer (23) is fixedly connected to a pusher (25), and the outer surface of the pusher (25) is provided with anti-slip grooves (26), and there are multiple anti-slip grooves (26).

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