On-site pull-out tester for engineering construction quality acceptance

Abstract

The utility model relates to the technical field of building engineering construction, in particular to an on-site pull-out tester for engineering construction quality acceptance, which comprises a bottom shell, second electric push rods are fixedly mounted at four corners of the inner bottom wall of the bottom shell, and the output ends of the second electric push rods face upwards and are provided with fixing assemblies. A drawing device is installed between the multiple fixing assemblies, a ball-and-socket joint is fixedly installed at the lower end of the drawing device, a vertical channel is formed in the ball-and-socket joint and the drawing device jointly, the upper portion of the ball-and-socket joint is movably sleeved with an upper half shell, and a lower half shell matched with the upper half shell in shape is arranged below the upper half shell. The side face of the lower half shell is connected with a displacement assembly. On one hand, the accuracy of a detection result can be effectively guaranteed, on the other hand, the safety of the device in the using process can be guaranteed, and meanwhile the drawing resistance degree of the bolt stressed at different angles in a complex environment can be simulated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building engineering construction, especially relate to a field pullout tester for engineering construction quality acceptance. BACKGROUND

[0002] Building engineering refers to the collective name of all kinds of buildings and engineering facilities providing material technical basis for human life and production, after people complete the construction work of building engineering, it is necessary to use a pullout tester to check the construction quality of building engineering, the pullout tester is used for detecting the pullout strength of surface concrete and the sticking strength of local repair material, the test only causes slight damage to concrete, and it is also a useful tool for evaluating the gradual deterioration of the pullout strength and sticking strength of concrete in general and severe working environments.

[0003] However, in the construction process, the punching is mostly manually operated, so it is inevitable to have skew, and the traditional pullout tester directly ignores the angle sleeve and carries out pullout detection, which can make the supporting point unbalanced, some points are damaged due to excessive pressure, or the point with large pressure becomes the supporting point due to the angle problem, so that the device is not pulled in the direction of the bolt during detection, the component force in the direction of the wall surface increases the friction of the bolt, and finally the detection result has an error. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the above-mentioned shortcomings in the prior art and provides a field pullout tester for engineering construction quality acceptance.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A field pullout tester for engineering construction quality acceptance, including bottom shell, the second electric push rod is fixedly installed at four corner places of bottom wall in the bottom shell, the output end of second electric push rod faces upwards and is installed with fixed assembly, a plurality of fixed assemblies are installed with pullout tester between them, the pullout tester is provided with liquid inlet which is communicated with its inside, the lower end of pullout tester is fixedly installed with ball joint, the ball joint and pullout tester inside are jointly provided with vertical channel, the upper side of ball joint is movably sleeved with upper half shell, the lower side of upper half shell is provided with lower half shell which is matched with its shape, the side of lower half shell is connected with displacement assembly.

[0007] Preferably, the fixed assembly comprises an electric control roller shaft installed on the output end of the second electric push rod, a rope is wound on the electric control roller shaft, a fixed ring is connected to the end of the rope away from the electric control roller shaft, a connecting handle is rotatably connected to the inner side of the fixed ring, a sleeve ring is fixedly installed between a plurality of connecting handles, and the pullout tester is detachably installed in the sleeve ring.

[0008] Preferably, a plurality of receivers are fixedly installed on the lower end of the collar, and a constraint spotlight is installed on the side of the telescopic end of the second electric push rod, and the number and position of the constraint spotlight are one-to-one corresponding to the receivers.

[0009] Preferably, the displacement assembly comprises a first electric push rod arranged between any two adjacent second electric push rods, the first electric push rod is fixedly installed on the inner bottom wall of the bottom shell and the telescopic end thereof is slidingly connected with the lower half shell, and the connecting plate is detachably installed between the upper half shell and the lower half shell.

[0010] Preferably, the upper half of the lower half shell is in a hemispherical shape and has the same diameter as the upper half shell, and the lower half is in a cuboid shape.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1. The upper half shell, the lower half shell and the ball joint are arranged in the device, on the one hand, the device is convenient to install and disassemble, and on the other hand, the lower end surface of the bottom shell can still be attached to the surface of the wall after the bolt is connected, and the pulling force is still along the direction of the bolt, so that the accuracy of the detection result is improved.

[0013] 2. When the bolt is loose, the puller is displaced away from the wall, at this time, the connecting handle is driven to displace and the angle of the rope relative to the second electric push rod is deflected, a pulling force in the output direction of the second electric push rod is generated, and the whole device is immediately stopped after the pulling force is detected by the pressure detector built in the second electric push rod, so that the bolt is prevented from flying out under the action of the pulling force and causing danger.

[0014] 3. The electric control roller can control the stretching and contraction of the rope, and when the pull test is carried out, the electric control roller is controlled to rotate to apply a rotating force in a specified direction to the puller, so that the bolt is simulated to be subjected to stress at different angles in a complex environment.

[0015] In summary, through the arrangement of the above structure, the accuracy of the detection result can be effectively ensured, the safety of the device in use can be ensured, and the bolt is simulated to be subjected to stress at different angles in a complex environment. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model provides a kind of whole structure schematic view of field pull-out test instrument for engineering construction quality acceptance;

[0017] Figure 2 The utility model provides a kind of structure schematic view of second electric push rod and electric control roller part of field pull-out test instrument for engineering construction quality acceptance;

[0018] Figure 3 This is a schematic diagram of the ball-and-socket joint and collar portion of an on-site pull-out tester for engineering construction quality acceptance proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the lower shell and the first electric push rod of an on-site pull-out tester for engineering construction quality acceptance proposed in this utility model.

[0020] Figure 5 This is a half-sectional view of the bottom shell of a field pull-out tester for engineering construction quality acceptance proposed in this utility model.

[0021] In the diagram: 1 bottom shell, 11 first electric actuator, 12 upper shell, 13 connecting plate, 14 lower shell, 2 second electric actuator, 21 electric control roller, 22 rope, 23 fixing ring, 24 restraint spotlight, 3 puller, 31 liquid inlet, 32 vertical channel, 33 ball joint, 34 collar, 35 connecting handle, 36 receiver. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1 to 5 A field pull-out tester for engineering construction quality acceptance includes a base shell 1. A second electric push rod 2 is fixedly installed at each of the four corners of the inner bottom wall of the base shell 1. The output end of the second electric push rod 2 faces upward and is equipped with an electrically controlled roller 21. A rope 22 is wound onto the electrically controlled roller 21. A fixing ring 23 is connected to the end of the rope 22 away from the electrically controlled roller 21. A connecting handle 35 is rotatably connected to the inner side of the fixing ring 23. A collar 34 is fixedly installed among multiple connecting handles 35. Multiple receivers 36 are fixedly installed at the lower end of the collar 34. A constraint spotlight 24 is installed on the side of the telescopic end of the second electric push rod 2 facing the collar 34. The number and position of the constraint spotlights 24 correspond one-to-one with the receivers 36.

[0024] The puller 3 is detachably installed inside the collar 34. The puller 3 is existing technology, and its specific structural design will not be described in detail here. The puller 3 has a liquid inlet 31 that communicates with its interior. The lower end of the puller 3 is fixedly installed with a ball joint 33. The ball joint 33 and the puller 3 have a vertical channel 32. The vertical channel 32 is used for the passage of bolts or steel bars. The upper shell 12 is movably fitted above the ball joint 33.

[0025] The first electric push rod 11 is fixedly installed on the bottom wall in the bottom shell 1, the telescopic end of the first electric push rod 11 is transversely arranged, the telescopic ends of the plurality of first electric push rods 11 are jointly and slidably connected with the lower half shell 14, the upper half of the lower half shell 14 is in the shape of a hemisphere and has the same diameter as the upper half shell 12, the lower half of the lower half shell 14 is in the shape of a cuboid and can slide in the bottom shell 1 under the drive of the first electric push rod 11, the connecting plate 13 is detachably installed between the upper half shell 12 and the lower half shell 14, the upper half shell 12 and the lower half shell 14 are fixedly connected together through the connecting plate 13, so that the ball-and-socket joint 33 is conveniently limited.

[0026] The specific working principle of the utility model is as follows: when the detection operation is needed, the user needs to first attach the whole device to the detection wall surface and let the to-be-detected bolt hole be located at the central hole on the bottom surface of the bottom shell 1, the detection bolt (if a bolt has been screwed on the bolt hole, it can be directly sleeved) is completely inserted through the bottom shell 1, the lower half shell 14 and the vertical channel 32, and one end of the detection bolt is screwed into the to-be-detected bolt hole, and the other end is clamped and fixed on the upper end of the puller 3 with a nut. At this time, the four groups of first electric push rods 11 control the connecting plate 13 to move so that the vertical channel 32 can be clamped into the groove of the lower half shell 14, the upper half shell 12 is fixed on the upper end surface of the lower half shell 14 through the connecting plate 13, and the installation of the device is completed. Because the punching in the construction process is mostly manually operated, it is inevitable to have skew, and the traditional pull-out tester directly ignores the angle and inserts for pull-out detection, which can cause uneven stress on the support point, some points are damaged due to excessive pressure, or the point with large pressure becomes the support point due to the angle problem, so that the device is not pulled in the direction of the bolt during detection, which causes the component force in the direction of the wall surface to increase the friction force on the bolt, finally resulting in an error in the detection result. The clamping effect of the ball-and-socket joint 33 is to enable the lower end surface of the bottom shell 1 to still adhere to the wall surface after the device is connected to the bolt, and the pull-out force is still in the direction of the bolt, so as to improve the accuracy of the detection result.

[0027] The collar 34, the connecting handle 35 and the receiver 36 are fixed at the side end surface of the puller 3, and the fixing ring 23 is rotationally connected with the connecting handle 35, so that a light beam emitted by the constraint spotlight 24 is received by the receiver 36, and when the bolt angle is inclined to cause the puller 3 to be inclined, the receiver 36 changes position due to the change of the puller 3, so that the light beam of the constraint spotlight 24 cannot find the receiver 36, and the receiver 36 emits an electric signal to control the second electric push rod 2 to rise until the light beam emitted by the constraint spotlight 24 is received again, and because the light beam emitted by the constraint spotlight 24 is perpendicular to the side surface of the output end of the second electric push rod 2, and when the constraint spotlight 24 irradiates the receiver 36, the rope 22 is parallel to the light beam emitted by the constraint spotlight 24, so that the adjustment can make the rope 22 always perpendicular to the side surface of the output end of the second electric push rod 2, that is, the output end of the second electric push rod 2 is not subjected to the pulling force in the output direction of the second electric push rod 2. After the adjustment, the second electric push rod 2 is turned off to make the second electric push rod 2 self-locking, and the relative position of the electric control roller 21 is locked, and when the bolt is loosened, the puller 3 is displaced away from the wall, at this time, the connecting handle 35 is displaced to drive the rope 22 to be deflected relative to the second electric push rod 2, so that the pulling force in the output direction of the second electric push rod 2 is generated, and after being detected by the pressure detector built in the second electric push rod 2, the whole device is immediately stopped to prevent the bolt from flying out under the action of the pulling force after being pulled out, which causes danger.

[0028] The electric control roller 21 can control the rope 22 to stretch and contract, and when the pull-out test is performed, the electric control roller 21 is controlled to rotate to apply a rotating force in a specified direction to the puller 3, so as to simulate the pull-out resistance of the bolt under different angles in a complex environment.

[0029] The above merely describes a preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, and any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A field pull-out test instrument for engineering construction quality acceptance, comprising a bottom shell (1), a second electric push rod (2) is fixedly installed at each corner of the inner bottom wall of the bottom shell (1), characterized in that, The output end of the second electric push rod (2) faces upwards and is provided with fixing assemblies, a puller (3) is mounted between the fixing assemblies, a liquid inlet (31) is arranged above the puller (3) and communicates with the interior of the puller (3), a ball joint (33) is fixedly mounted at the lower end of the puller (3), a vertical channel (32) is formed in the ball joint (33) and the puller (3), an upper half shell (12) is movably sleeved above the ball joint (33), a lower half shell (14) is arranged below the upper half shell (12) and is matched with the shape of the upper half shell (12), and a displacement assembly is connected to the side of the lower half shell (14).

2. The field pull-out tester for engineering construction quality acceptance according to claim 1, characterized in that, The fixing assembly comprises an electric control roller (21) mounted on the output end of the second electric push rod (2), a rope (22) is wound on the electric control roller (21), a fixed ring (23) is connected to the end of the rope (22) away from the electric control roller (21), a connecting handle (35) is rotatably connected to the inner side of the fixed ring (23), a sleeve ring (34) is fixedly mounted between the connecting handles (35), and the puller (3) is detachably mounted in the sleeve ring (34).

3. The field pull-out tester for engineering construction quality acceptance according to claim 2, characterized in that, A plurality of receivers (36) are fixedly mounted at the lower end of the sleeve ring (34), and a constraint spotlight (24) is mounted on the side of the second electric push rod (2) facing the sleeve ring (34), the number and position of the constraint spotlight (24) are one-to-one corresponding to the receivers (36).

4. The field pull-out tester for engineering construction quality acceptance according to claim 1, characterized in that, The displacement assembly comprises a first electric push rod (11) arranged between any two adjacent second electric push rods (2), the first electric push rod (11) is fixedly mounted on the inner bottom wall of the bottom shell (1) and is slidably connected to the lower half shell (14), and a connecting plate (13) is detachably mounted between the upper half shell (12) and the lower half shell (14).

5. The field pull-out test apparatus for engineering construction quality acceptance according to claim 1, characterized in that, The upper half of the lower half shell (14) is arranged in a hemispherical shape and has the same diameter as the upper half shell (12), and the lower half is arranged in a rectangular shape.

Images