Anchoring device for testing mortar surface strength

Abstract

The present invention provides an anchoring device for detecting the strength of mortar surface layers, and relates to the field of construction engineering detection. The anchoring device for detecting the strength of mortar surface layers comprises a base plate, a hole is provided at the center of the base plate, a positioning seat is provided in the hole, a connecting ring is provided at the center of the positioning seat, a support foot is provided at the end of the base plate, the support foot is inserted into the cement mortar, an anchor is provided at the center of the base plate, and the lower half of the anchor is inserted into the cement mortar. The anchoring device for detecting the strength of mortar surface layers is composed of a base plate, a positioning seat, a pin, an anchor, and a pull-out module. The pull-out module is composed of a bracket, a motor, a force gauge, a large spring, a rope, and a ring. The rope is wound by rotating the motor, and the rope pulls the anchor. At the same time, the force gauge moves the large spring to squeeze it, thereby detecting the force required to pull out the force gauge, and achieving the purpose of the test. A ball bearing and a grating module are provided in the positioning seat, which are used to detect whether the anchor is perpendicular to the wall.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering detection, in particular to an anchoring device used for detecting the strength of a mortar surface layer. Background Art

[0002] Masonry structure is a commonly used building structure in my country. With the advancement of science and economic development, people's requirements for earthquake resistance and safety performance of houses are constantly increasing. In the actual application of the steel mesh cement mortar surface reinforcement method, it is often impossible to determine whether the strength grade of the mortar meets the design requirements due to various reasons.

[0003] Among the traditional detection technologies, the pull-out method has the characteristics of micro-destructiveness, simple detection process, and relatively simple repair after detection. This method first selects measuring points on the mortar surface layer, and uses the pre-installation or post-installation method to bury the anchor vertically into the mortar surface layer, and then uses a pull-out instrument to pull the anchor out of the mortar surface layer and record the maximum pull-out force. The tester can calculate the corresponding mortar surface layer strength according to the measured pull-out force through the linear formula between the pull-out force and the compressive strength of the mortar surface layer. When the post-installation pull-out method is used to test the strength of the reinforced mortar surface layer in the actual project, first select the measuring points on the mortar surface layer, then drill holes perpendicular to the wall and inject glue, bury the anchor in the hole, and use the pull-out instrument to pull out the anchor after the glue reaches the strength. Through the relevant formula, the corresponding mortar surface layer strength can be calculated according to the pull-out force.

[0004] However, in actual operation, it takes a certain amount of time for the anchoring glue to solidify and reach strength. The anchors in the holes often sag due to gravity and cannot be completely perpendicular to the vertical wall, resulting in inaccurate pull-out force values, which in turn affects the accuracy of mortar surface strength testing. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides an anchoring device for detecting the strength of a mortar surface layer, which solves the problems raised in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: an anchoring device for detecting the strength of mortar surface layers, which detects the strength of cement mortar layers on walls, comprising a base plate, a hole being provided at the center of the base plate, a positioning seat being provided in the hole, a connecting ring being provided at the center of the positioning seat, supporting feet being provided at the ends of the base plate, the supporting feet being inserted into the cement mortar, an anchor being provided at the center of the base plate, the lower half of the anchor being inserted into the cement mortar, a threaded column being connected to the front end of the anchor, the anchor being horizontally arranged and passing through the positioning seat, an internal thread being provided on the inner side of the connecting ring, the threaded column thread passing through the connecting ring, and the anchor and the threaded column being perpendicular to the base plate space.

[0009] It also includes a pull-out module. The end of the threaded column away from the anchor is connected to a steel wire rope. The steel wire rope is fixedly tied with a hook. The pull-out module is provided with a force gauge. The hook hooks the force gauge. The pull-out module drags the threaded column out of the cement mortar, and the force gauge measures the required force.

[0010] A balancing component is provided in the positioning seat, and the balancing component is used to monitor whether the anchor is perpendicular to the wall. Warning lights are symmetrically arranged at the center of the base plate, and the warning lights correspond one-to-one to the ends of the base plate. When the balancing component senses that the anchor is not perpendicular to the wall, the warning lights light up.

[0011] Preferably, the pull-out module includes two brackets, a motor, and a force meter. The motor is placed between the two brackets. The brackets are provided with a through slide. The force meter is connected to the outside of the motor. The force meter slides in cooperation with the slide. A large spring is connected to the front side of the force meter. One end of the large spring away from the force meter is connected to the inner wall of the slide. A rope is connected to the motor drive shaft. The rope is fixedly tied with a ring, and the curved hook can hook the ring.

[0012] Preferably, a counterweight block is also included, a screw rod is vertically inserted into the counterweight block, a hoop is connected to the end of the bracket, the counterweight block passes through the hoop, and nuts are threadedly connected to the counterweight block rod body and the hoop at the upper and lower ends.

[0013] Preferably, an arc-shaped chamber is opened in the positioning seat, a ball is arranged in the arc-shaped chamber, and a grating module is arranged at the middle end of the arc-shaped chamber. When the substrate is perpendicular to the ground, the substrate is parallel to the wall, and the anchor is perpendicular to the wall. The ball rolls to the middle section of the arc-shaped chamber, and the ball blocks the grating module, and the warning light goes out.

[0014] Preferably, the support leg is a pin, a groove is formed on the pin shaft along the length direction, a through hole is formed on the end of the substrate, a support rod is connected to the front side of the substrate and located around the through hole, the front end of the support rod is slidably matched with the groove, a small spring is connected to the front end of the support rod, and the end of the small spring away from the support rod is connected to the inner wall of the groove.

[0015] Preferably, a slide is provided on the back side of the substrate, the slide corresponds to the end of the substrate one by one, a thin rope is connected to the slide transmission shaft, the thin rope is fixedly tied to the tail end of the pin, racks are symmetrically provided on both sides of the slide, and a motor-driven gear is connected to the side of the slide, and the gear is meshed with the rack.

[0016] Preferably, a single-chip microcomputer and a battery are fixedly mounted on the back of the substrate, and the single-chip microcomputer, the battery, the warning light, the slide seat, and the grating module are electrically connected.

[0017] (III) Beneficial effects

[0018] The present invention provides an anchoring device for testing the strength of a mortar surface layer. It has the following beneficial effects:

[0019] 1. The anchoring device used for mortar surface strength testing consists of a base plate, a positioning seat, a pin, an anchor, and a pull-out module. The pull-out module consists of a bracket, a motor, a dynamometer, a large spring, a rope, and a ring. The rope is wound by the motor, and the rope pulls the anchor. At the same time, the dynamometer moves the large spring to squeeze it, thereby detecting the force required to pull out the dynamometer to achieve the purpose of the test. A ball and grating module are provided in the positioning seat to detect whether the anchor is perpendicular to the wall.

[0020] 2. The anchoring device used for mortar surface strength detection is provided with a rack and a slide at the end of the base plate. The slide moves along the rack to adjust the distance between the base plate and the pin, which plays a role of micro-adjustment, so that the base plate is slowly adjusted to the ground, so that the anchor is perpendicular to the wall. This avoids the anchor not being perpendicular to the vertical wall, which leads to inaccurate pull-out force values, and further improves the accuracy of mortar surface strength detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of the structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the present invention from another angle;

[0023] Figure 3 It is a front view of the structure of the present invention;

[0024] Figure 4 For the present invention Figure 1 A magnified view of the structure at center;

[0025] Figure 5 For the present invention Figure 2 A magnified view of the structure at B in the middle;

[0026] Figure 6 This is a schematic diagram of the support structure of the present invention;

[0027] Figure 7 This is a cross-sectional view of the positioning seat structure of the present invention.

[0028] In the figure: 1 substrate, 11 through hole, 12 slide seat, 121 thin rope, 122 rack, 123 gear, 2 positioning seat, 21 arc chamber, 22 ball, 23 grating module, 3 anchor, 31 threaded column, 32 wire rope, 4 connecting ring, 5 pin, 51 groove, 52 rod, 53 small spring, 6 counterweight, 61 screw, 62 nut, 7 bracket, 71 slide, 72 hoop, 73 motor, 74 dynamometer, 75 large spring, 76 rope, 77 ring. DETAILED DESCRIPTION

[0029] The embodiment of the present invention provides an anchoring device for detecting the strength of a mortar surface layer, which detects the strength of a cement mortar layer on a wall. Figure 1-7 As shown, it includes a base plate 1, a hole is provided at the center of the base plate 1, a positioning seat 2 is fixedly installed in the hole, a connecting ring 4 is inserted at the center of the positioning seat 2, and a support leg is provided at the end of the base plate 1, and the support leg is inserted into the cement mortar. An anchor 3 is provided at the center of the base plate 1, the lower half of the anchor 3 is inserted into the cement mortar, a threaded column 31 is welded at the front end of the anchor 3, the anchor 3 is horizontally arranged and passes through the positioning seat 2, an internal thread is provided on the inner side of the connecting ring 4, the threaded column 31 is threaded through the connecting ring 4, and the anchor 3, the threaded column 31 and the base plate 1 are vertical in space. The connecting ring 4 is used to connect the anchor 3 and the base plate 1 together.

[0030] When the anchor 3 is pulled out from the cement mortar layer, the connecting ring 4 moves along with the anchor 3 , and the connecting ring 4 is separated from the base plate 1 .

[0031] It also includes a pulling-out module. The threaded column 31 is connected to a steel wire rope 32 at one end away from the anchor 3. The steel wire rope 32 is fixedly tied with a hook. The pulling-out module is provided with a force gauge 74. The hook hooks the force gauge 74. The pulling-out module drags the threaded column 31 out of the cement mortar, and the force gauge 74 measures the required force.

[0032] A balancing component is provided in the positioning seat 2, which is used to monitor whether the anchor 3 is perpendicular to the wall. A warning light is fixedly installed symmetrically at the center of the base plate 1. The warning light corresponds to the end of the base plate 1 one by one. When the balancing component senses that the anchor 3 is not perpendicular to the wall, the warning light lights up.

[0033] The extraction module includes two brackets 7, a motor 73, and a force gauge 74. The motor 73 is placed between the two brackets 7, and the bracket 7 is provided with a through slide 71. The force gauge 74 is fixedly installed on the outside of the motor 73, and the force gauge 74 is slidably matched with the slide 71. A large spring 75 is fixedly installed on the front side of the force gauge 74, and one end of the large spring 75 away from the force gauge 74 is welded to the inner wall of the slide 71. A rope 76 is fixedly tied to the transmission shaft of the motor 73, and a ring 77 is fixedly tied to the rope 76, and the hook can hook the ring 77.

[0034] The bracket 7 also includes a counterweight 6, on which a screw 61 is vertically fixed and inserted, a hoop 72 is welded at the end of the bracket 7, the counterweight 6 passes through the hoop 72, and nuts 62 are threadedly connected to the counterweight 6 and the hoop 72 at both ends. The bracket 7 is fixed above the counterweight 6 by the nut 62.

[0035] The bottom of the counterweight block 6 is flat, and the screw rod 61 is perpendicular to the ground.

[0036] An arc-shaped chamber 21 is defined in the positioning seat 2 . A ball bearing 22 is disposed in the arc-shaped chamber 21 . A grating module 23 is fixedly mounted at the middle end of the arc-shaped chamber 21 .

[0037] When the substrate 1 is perpendicular to the ground, the substrate 1 is parallel to the wall, and the anchor 3 is perpendicular to the wall. The ball 22 rolls to the middle of the arc chamber 21, and the ball 22 blocks the grating module 23, and the warning light goes out.

[0038] When the substrate 1 is not perpendicular to the ground, the ball 22 rolls the edge of the arc-shaped chamber 21, and the grating module 23 is no longer blocked, and the warning light is on.

[0039] The support leg is a pin 5, and a groove 51 is formed along the length of the pin 5. A through hole 11 is formed at the end of the substrate 1. A support rod 52 is welded on the front of the substrate 1 and around the through hole 11. The front end of the support rod 52 is slidably matched with the groove 51. A small spring 53 is welded to the front end of the support rod 52, and the end of the small spring 53 away from the support rod 52 is welded to the inner wall of the groove 51.

[0040] A slide 12 is provided on the back of the substrate 1. The slide 12 corresponds to the end of the substrate 1 one by one. A thin rope 121 is fixedly tied to the transmission shaft of the slide 12. The thin rope 121 is fixedly tied to the tail end of the pin 5. Racks 122 are symmetrically provided on both sides of the slide 12. The toothed plate 122 is welded to the substrate 1. A gear 123 driven by a motor is fixedly installed on the side of the slide 12. The gear 123 meshes with the rack 122.

[0041] Working principle: insert the pin 5 into the cement mortar layer, and the entire base plate 1 is suspended on the wall. When the anchor 3 is not perpendicular to the wall, the gear 123 at the place where the warning light is on starts to work, and the gear 123 rotates slowly, pushing the slide 12 to move along the rack 122. The slide 12 pulls the pin 5 through the thin rope 121, and the end of the base plate 1 is close to the pin 5, and then the angle of the base 1 is adjusted to achieve the purpose of fine-tuning the base plate 1, and slowly adjust the base plate 1 to be perpendicular to the ground.

[0042] A single-chip microcomputer and a battery are fixedly mounted on the back of the substrate 1 . The single-chip microcomputer, the battery, the warning light, the slide 12 , and the grating module 23 are electrically connected.

[0043] In summary, the anchoring device for testing the strength of the mortar surface layer is composed of a base plate 1, a positioning seat 2, a pin 5, an anchor 3, and a pull-out module. The pull-out module is composed of a bracket 7, a motor 73, a force gauge 74, a large spring 75, a rope 76, and a ring 77. The rope 76 is wound by rotating the motor 73, and the rope 76 pulls the anchor 3. At the same time, the force gauge 74 moves the large spring 75 to squeeze it, thereby detecting the force required to pull out the force gauge 74, and achieving the purpose of the test. A ball 22 and a grating module 23 are provided in the positioning seat 2 to detect whether the anchor 3 is perpendicular to the wall.

[0044] In addition, a rack 122 and a slide 12 are provided at the end of the substrate 1. The slide 12 moves along the rack 122 to adjust the distance between the substrate 1 and the pin 5, thereby playing a role of fine adjustment, so that the substrate 1 is slowly adjusted to the ground, so that the anchor 3 is perpendicular to the wall surface. This avoids the anchor 3 not being perpendicular to the vertical wall surface, which leads to inaccurate pull-out force values, and further improves the accuracy of mortar surface strength detection.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anchoring device for testing the strength of mortar surface layer, which is used to test the strength of cement mortar layer on the wall, characterized in that: The invention comprises a base plate (1), wherein a hole is provided at the center of the base plate (1), a positioning seat (2) is provided in the hole, a connecting ring (4) is provided at the center of the positioning seat (2), a supporting foot is provided at the end of the base plate (1), the supporting foot is inserted into cement mortar, an anchor (3) is provided at the center of the base plate (1), the lower half of the anchor (3) is inserted into the cement mortar, a threaded column (31) is connected to the front end of the anchor (3), the anchor (3) is arranged horizontally and passes through the positioning seat (2), an internal thread is provided on the inner side of the connecting ring (4), the threaded column (31) is threadedly penetrated through the connecting ring (4), and the anchor (3) and the threaded column (31) are vertical to the base plate (1) space; The device also includes a pulling out module. The end of the threaded column (31) away from the anchor (3) is connected to a steel wire (32). The steel wire (32) is fixedly tied with a hook. The pulling out module is provided with a force gauge (74). The hook hooks the force gauge (74). The pulling out module drags the threaded column (31) out of the cement mortar, and the force gauge (74) measures the required force. A balancing component is provided in the positioning seat (2), and the balancing component is used to monitor whether the anchor (3) is perpendicular to the wall surface. Warning lights are symmetrically arranged at the center of the base plate (1), and the warning lights correspond to the ends of the base plate (1) one by one. When the balancing component senses that the anchor (3) is not perpendicular to the wall surface, the warning lights light up; The extraction module comprises two brackets (7), a motor (73) and a force measuring device (74), wherein the motor (73) is arranged between the two brackets (7), the bracket (7) is provided with a through slide groove (71), the outer side of the motor (73) is connected with the force measuring device (74), the force measuring device (74) and the slide groove (71) are slidably matched, the front side of the force measuring device (74) is connected with a large spring (75), one end of the large spring (75) away from the force measuring device (74) is connected with the inner wall of the slide groove (71), the transmission shaft of the motor (73) is connected with a rope (76), the rope (76) is fixedly tied with a ring (77), and the hook can hook the ring (77); The support foot is a plug pin (5), the shaft of the plug pin (5) is provided with a groove (51) along the length direction, the end of the base plate (1) is provided with a through hole (11), a support rod (52) is connected to the front of the base plate (1) and is located around the through hole (11), the front end of the support rod (52) is slidably matched with the groove (51), the front end of the support rod (52) is connected to a small spring (53), and the end of the small spring (53) away from the support rod (52) is connected to the inner wall of the groove (51); A slide seat (12) is provided on the back of the base plate (1), the slide seat (12) corresponds to the end of the base plate (1) one by one, a thin rope (121) is connected to the transmission shaft of the slide seat (12), the thin rope (121) is fixedly bound to the tail end of the insertion pin (5), racks (122) are symmetrically provided on both sides of the slide seat (12), and a gear (123) driven by a motor is connected to the side of the slide seat (12), and the gear (123) is meshed with the rack (122).

2. An anchoring device for mortar surface strength detection according to claim 1, characterized in that: The invention also comprises a counterweight (6), a screw rod (61) being vertically inserted into the counterweight (6), a hoop (72) being connected to the end of the bracket (7), the counterweight (6) passing through the hoop (72), and nuts (62) being threadedly connected to the counterweight (6) rod body and the hoop (72) at both the upper and lower ends.

3. An anchoring device for mortar surface strength detection according to claim 1, characterized in that: The positioning seat (2) is provided with an arc-shaped chamber (21), a ball (22) is provided in the arc-shaped chamber (21), and a grating module (23) is provided at the middle end of the arc-shaped chamber (21). When the substrate (1) is perpendicular to the ground, the substrate (1) is parallel to the wall, and the anchor (3) is perpendicular to the wall. The ball (22) rolls to the middle section of the arc-shaped chamber (21), and the ball (22) blocks the grating module (23), and the warning light is turned off.

4. The anchoring device for mortar surface strength detection according to claim 1 is characterized in that: A single-chip microcomputer and a battery are also fixedly mounted on the back of the substrate (1); the single-chip microcomputer, the battery, the warning light, the slide seat (12), and the grating module (23) are electrically connected.

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