Counter-force detection device for anchoring force of chemical anchor bolt

Abstract

The utility model discloses a counterforce detection device for anchoring force of a chemical anchor bolt, which can freely adjust the height of a base to adapt to chemical anchor bolts with different exposed lengths and is convenient to operate. The counterforce detection device for the anchoring force of the chemical anchor bolt comprises a base, an adjusting cylinder, a jack and an extension rod piece, the base is provided with an adjusting channel, a plurality of circles of limiting ring grooves are formed in the adjusting channel at intervals up and down, and a notch is formed in the upper wall of each limiting ring groove; the uppermost limiting ring groove communicates with the upper end face of the base through the notch, and the adjacent limiting ring grooves communicate with each other through the notch. The adjusting cylinder is in clearance fit in the adjusting channel, and a limiting bump is arranged on the peripheral surface; the limiting protruding blocks enter the limiting ring grooves through the notches or move between the limiting ring grooves through the notches. When the limiting protruding block and the notch are staggered, the adjusting cylinder and the base are relatively fixed. The jack is matched with the upper end face of the adjusting cylinder; the extension rod piece sequentially penetrates through the base, the adjusting cylinder and the jack from bottom to top.

Description

Technical Field

[0001] The utility model relates to the technical field of building accessories, in particular to a reaction force device for detecting the anchoring force of chemical anchor bolts. Background Technique

[0002] A chemical anchor bolt is an anchoring element used for concrete structures. It fixes the bolt in the drilled hole of the concrete base material through a special chemical adhesive. This anchor bolt relies on the combined action of the grip force and mechanical biting force with the concrete to resist tensile and shear forces, and is mainly used to connect new and old structures. During the construction process, if the anchoring performance of the chemical anchor bolt is poor, it will threaten the project quality and safety. Therefore, testing the chemical anchor bolt is a necessary measure.

[0003] In the prior art, an extension rod is often used in combination with a jack to test the anchoring performance of chemical anchor bolts. Since the bottom of the extension rod needs to be threadedly connected to the chemical anchor bolt, its bottom diameter is generally larger than the hollow diameter of the jack, resulting in being unable to enter the interior of the jack. Moreover, the exposed length of the chemical anchor bolts on the construction site is not uniform. Therefore, it is necessary to cut a steel cylinder on-site according to the exposed length of the chemical anchor bolt to make a base of a corresponding length for supporting the jack for detection. The temporary base has a low reuse rate, wastes materials and increases the on-site operation volume. At the same time, the cutting equipment is troublesome to carry, adding a burden to the workers. Content of the Utility Model

[0004] The purpose of the utility model is to provide a reaction force device for detecting the anchoring force of chemical anchor bolts, which solves the problems existing in the prior art, can freely adjust the height of the base to adapt to chemical anchor bolts with different exposed lengths, and is convenient to operate.

[0005] In order to achieve the above object, the solution of the utility model is:

[0006] A reaction force device for detecting the anchoring force of chemical anchor bolts includes a base, an adjusting cylinder, a jack and an extension rod; the base is provided with an adjusting channel, and a plurality of rings of limiting annular grooves are arranged at intervals up and down in the adjusting channel, and notches are arranged on the upper walls of the respective limiting annular grooves; the uppermost limiting annular groove communicates with the upper end surface of the base through the notch, and adjacent limiting annular grooves are communicated through the notch; the adjusting cylinder is in clearance fit in the adjusting channel, and a limiting convex block is arranged on its peripheral surface; the limiting convex block enters the limiting annular groove through the notch, or moves between the respective limiting annular grooves through the respective notches; when the limiting convex block is misaligned with the notch, the adjusting cylinder and the base are relatively fixed; the jack is fitted on the upper end surface of the adjusting cylinder; the extension rod is sequentially penetrated through the base, the adjusting cylinder and the jack from bottom to top.

[0007] A pair of limit bumps are symmetrically arranged on both sides of the adjusting cylinder, and a pair of notches are arranged on the upper walls of both sides of the limit ring groove.

[0008] Preferably, in the base, the notches of adjacent limit ring grooves are arranged at an interval of 90°.

[0009] A nut is arranged on the upper end surface of the jack, and the nut is threadedly connected with the extension rod member.

[0010] Preferably, a gasket is arranged between the nut and the jack.

[0011] A connecting portion is arranged at the bottom of the extension rod member, and a threaded hole for connecting a chemical anchor bolt is arranged on the lower end surface of the connecting portion.

[0012] The detection reaction force device for the anchoring force of the chemical anchor bolt further includes an oil pump connected to the jack.

[0013] After adopting the above technical solutions, the utility model has the following technical effects:

[0014] The utility model can freely adjust the height of the jack relative to the chemical anchor bolt through the cooperation between the limit bumps of the adjusting cylinder and one of the limit ring grooves of the base, which is applicable to the detection working conditions with different exposed lengths of the chemical anchor bolts, has strong applicability and high repeat utilization rate; the fittings of the whole set of devices can be processed by the factory without on-site processing, and only need to be fixed on the chemical anchor bolt to start the detection, which is convenient to operate; the fittings of the utility model are of pure mechanical structure, simple and reliable, not easy to fail, and have high durability. Description of the Drawings

[0015] Figure 1 is a perspective view of a specific embodiment of the utility model;

[0016] Figure 2 is an exploded view of a specific embodiment of the utility model;

[0017] Figure 3 is a cross-sectional view of a specific embodiment of the utility model;

[0018] Explanation of the reference numerals in the drawings:

[0019] 1 - Base; 11 - Adjusting channel; 12 - Limit ring groove; 13 - Communication port;

[0020] 2 - Adjusting cylinder; 21 - Limit bump;

[0021] 3 - Jack;

[0022] 4 - Extension rod member; 41 - Connecting portion; 42 - Threaded hole;

[0023] 5 - Nut;

[0024] 6 - gasket;

[0025] 7 - oil pump. Specific embodiments

[0026] In order to further explain the technical solution of the present invention, the present invention will be elaborated in detail below through specific embodiments.

[0027] Refer to Figures 1-3 As shown, the present invention discloses a detection reaction force device for the anchoring force of chemical anchors, including a base 1, an adjusting cylinder 2, a jack 3, and an extension rod 4;

[0028] The base 1 is provided with an adjustment channel 11, and a plurality of circles of limit ring grooves 12 are arranged at intervals up and down in the adjustment channel 11. A notch 13 is provided on the upper wall of each limit ring groove 12; the uppermost limit ring groove 12 is communicated to the upper end surface of the base 1 through the notch 13, and adjacent limit ring grooves 12 are communicated through the notch 13;

[0029] The adjusting cylinder 2 is in clearance fit in the adjustment channel 11, and a limit convex block 21 is provided on its peripheral surface; the limit convex block 21 enters the limit ring groove 12 through the notch 13, or moves between the limit ring grooves 12 through each notch 13; when the limit convex block 21 is misaligned with the notch 13, the adjusting cylinder 2 and the base 1 are relatively fixed;

[0030] The jack 3 is fitted on the upper end surface of the adjusting cylinder 2;

[0031] The extension rod 4 is sequentially penetrated through the base 1, the adjusting cylinder 2, and the jack 3 from bottom to top.

[0032] Through the above scheme, the present invention can freely adjust the height of the jack 3 relative to the chemical anchor by the cooperation of the limit convex block 21 of the adjusting cylinder 2 and one of the limit ring grooves 12 of the base 1, which is applicable to the detection working conditions with different exposed lengths of chemical anchors, has strong applicability and high repeat utilization rate; the accessories of the whole set of devices can be processed by the factory without on-site processing, and only need to be fixed on the chemical anchor to start the detection, which is convenient to operate; the accessories of the present invention are of pure mechanical structure, simple and reliable, not prone to failure, and have high durability.

[0033] The following shows specific embodiments of the present invention.

[0034] A pair of limit convex blocks 21 are symmetrically arranged on both sides of the adjusting cylinder 2, and a pair of notches 13 are provided on the upper walls on both sides of the limit ring groove 12. By providing two limit convex blocks 21, the adjusting cylinder 2 is supported by the limit convex blocks 21 on both sides, the structure is more stable, and the service life of the device is longer.

[0035] Furthermore, the notches 13 of adjacent limiting ring grooves 12 are arranged at an interval of 90°, so that the adjusting cylinder 2 needs to be rotated 90° every time its height is adjusted, which is convenient for workers to estimate the height of the adjusting cylinder 2.

[0036] A nut 5 is arranged on the upper end surface of the above-mentioned jack 3, and the nut 5 is threadedly connected with the extension rod 4 to fix the jack 3 and prevent it from shaking.

[0037] Furthermore, a gasket 6 is arranged between the above-mentioned nut 5 and the jack 3.

[0038] A connecting portion 41 is arranged at the bottom of the above-mentioned extension rod 4, and a screw hole 42 for connecting a chemical anchor bolt is arranged on the lower end surface of the connecting portion 41.

[0039] The utility model further includes an oil pump 7 connected to the jack 3.

[0040] The above embodiments and drawings do not limit the product form and style of the utility model. Any appropriate changes or modifications made by those of ordinary skill in the technical field to which the utility model pertains shall be regarded as not departing from the patent scope of the utility model.

Claims

1. A detection reaction force device for the anchoring force of a chemical anchor bolt, characterized in that: It includes a base, an adjusting cylinder, a jack and an extension rod; The base is provided with an adjusting channel, and several circles of limiting ring grooves are arranged at intervals up and down in the adjusting channel, and notches are arranged on the upper walls of the limiting ring grooves; the uppermost limiting ring groove communicates with the upper end surface of the base through the notch, and adjacent limiting ring grooves are communicated through the notch; The adjusting cylinder is in clearance fit in the adjusting channel, and a limiting convex block is arranged on its peripheral surface; the limiting convex block enters the limiting ring groove through the notch, or moves between the limiting ring grooves through the notches; when the limiting convex block is misaligned with the notch, the adjusting cylinder and the base are relatively fixed; The jack is fitted on the upper end surface of the adjusting cylinder; The extension rod is sequentially penetrated through the base, the adjusting cylinder and the jack from bottom to top.

2. The detection reaction force device for the anchoring force of a chemical anchor bolt according to claim 1, characterized in that: A pair of limiting convex blocks are symmetrically arranged on both sides of the adjusting cylinder, and a pair of notches are arranged on the upper walls on both sides of the limiting ring groove.

3. The detection reaction force device for the anchoring force of a chemical anchor bolt according to claim 2, characterized in that: In the base, the notches of adjacent limiting ring grooves are arranged at an interval of 90°.

4. The detection reaction force device for the anchoring force of a chemical anchor bolt according to claim 1, characterized in that: A nut is arranged on the upper end surface of the jack, and the nut is threadedly connected with the extension rod.

5. The detection reaction force device for the anchoring force of a chemical anchor bolt according to claim 4, characterized in that: A gasket is arranged between the nut and the jack.

6. The detection reaction force device for the anchoring force of a chemical anchor bolt according to claim 1, characterized in that: A connecting part is arranged at the bottom of the extension rod, and a screw hole for connecting a chemical anchor bolt is arranged on the lower end surface of the connecting part.

7. The detection reaction force device for the anchoring force of a chemical anchor bolt according to claim 1, characterized in that: It further includes an oil pump connected to the jack.

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