Anchor rod tension detector

Abstract

The utility model provides an anchor rod tension detector, which comprises a limit clamp, the limit clamp comprises a main limit body, an outer screw ring and a limit clamp block rotationally connected to the main limit body, the main limit body is nested on the outer side of an anchor rod, the outer wall of the main limit body is provided with a thread structure matched with the outer screw ring, and the limit clamp block is connected with the outer screw ring in a rotating process of the outer screw ring. The limiting clamping blocks can contract inwards or incline outwards along with the abutting and self-weight effects of the outer screw ring. The hydraulic equipment is communicated with the hydraulic telescopic cylinder through a pipeline, the hydraulic telescopic cylinder is nested on the peripheral side of the anchor rod to be tested, one end of the hydraulic telescopic cylinder abuts against the base surface of the fixed anchor rod, the other end of the hydraulic telescopic cylinder is in contact connection with the main limiting body, and the hydraulic telescopic cylinder generates thrust on the main limiting body. Friction force of the limiting clamp block to the anchor rod in the assembling process is effectively reduced, convenience and smoothness of the assembling process can be guaranteed, and the assembling efficiency of the limiting clamp is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the anchor rod tension detector technical field, especially relates to a kind of anchor rod tension detector. BACKGROUND

[0002] Anchor rod tension detector is used to detect the anchoring force of anchor rod, reinforcing bar and other anchoring bodies. Their main function is to measure the bonding firmness between anchor rod and base piece, and they are widely used in coal mining, national defense, transportation and other various tunnel operations.

[0003] Anchor rod tension detector is usually composed of a hand pump, a hollow hydraulic cylinder, a high-pressure oil pipe with a quick connector and an anchor device. The anchor device is usually assembled on the anchor rod during testing. The existing anchor device adopts a clamping piece structure, which is not convenient to assemble with the anchor rod. The clamping piece opening lacks control, and it is easy to contact the anchor rod during assembly, affecting the smoothness of the assembly process. INVENTION CONTENTS

[0004] The utility model provides a kind of anchor rod tension detector, to solve the problem that the existing anchor device adopts clamping piece structure when being assembled with anchor rod is not convenient, clamping piece opening lacks control, in assembly process, it is easy to contact anchor rod, affect the smoothness of the assembly process with anchor rod.

[0005] The utility model is realized in this way. A kind of anchor rod tension detector, comprising:

[0006] The limiting clamp includes a main limiting body, an outer screw ring and a limiting clamp block rotatably connected to the main limiting body. The main limiting body is nested on the outside of the anchor rod. The outer wall of the main limiting body is provided with a threaded structure with the outer screw ring. During the rotation of the outer screw ring, the limiting clamp block will shrink inward or tilt outward under the action of the outer screw ring and gravity.

[0007] The hydraulic telescopic cylinder is nested on the side of the anchor rod to be measured. One end of the hydraulic telescopic cylinder abuts on the base surface of the fixed anchor rod, and the other end is in contact with the main limiting body. Under the action of the hydraulic equipment, the hydraulic telescopic cylinder deforms on the main limiting body to generate a pushing force.

[0008] Preferably, the main limiting body includes a plurality of complex segments, a bottom ring and a bottom ring plate. The complex segments are arranged in a ring array on the end face of the bottom ring away from the bottom ring plate. A plurality of assembly grooves are formed between the complex segments.

[0009] Preferably, the outer wall of the complex segment is provided with a thread, and the outer wall of the bottom ring is also provided with a thread. The outer screw ring reaches the outer wall of the complex segment along the outer wall of the bottom ring through the thread.

[0010] Preferably, the complexing section forms several groups of annular array distribution assembly grooves, and the limiting clamp blocks are assembled in the assembly grooves.

[0011] Preferably, the limiting clamp block is provided with a rotating shaft near one side of the bottom ring, and the rotating shaft is assembled in the bearing seat provided on the side wall of the complexing section.

[0012] Preferably, the limiting clamp block is provided with a pressure bearing surface and an abutting surface, and in the process of fixing the anchor rod, the outer screw ring is in contact with the pressure bearing surface and applies a pushing force to the pressure bearing surface, and the abutting surface is in contact with the anchor rod to form a clamping force on the side of the anchor rod.

[0013] Compared with the prior art, the embodiments of the application have the following beneficial effects:

[0014] 1. The anchor rod tension detector provided by the utility model is closest to the bottom ring plate in the normal assembly stage, and the limiting clamp block will deflect and expand outward under the lack of supporting effect, effectively reducing the friction of the limiting clamp block on the anchor rod in the assembly process, ensuring the convenience and smoothness of the assembly process, and improving the assembly efficiency of the limiting clamp.

[0015] 2. When the outer screw ring rotates upward, the outer screw ring pushes the limiting clamp block back into the assembly groove and applies pressure to the anchor rod located at the center of the complexing section, so that the limiting clamp block forms a clamping force on the anchor rod, completes the fixed clamping action of the main limiting body on the anchor rod, and meets the fixed needs of anchor rods of different diameters by using the limiting clamp block that can be adjusted and controlled. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of the anchor rod tension detector provided by the utility model.

[0017] Figure 2 is a limiting clamp structure schematic view of the anchor rod tension detector provided by the utility model.

[0018] Figure 3 is a main limiting body structure schematic view of the anchor rod tension detector provided by the utility model.

[0019] Figure 4 is a structure schematic view of the limiting clamp block of the anchor rod tension detector provided by the utility model.

[0020] Figure 5 is a multi-group assembly groove structure schematic view of the anchor rod tension detector provided by the utility model.

[0021] BRIEF DESCRIPTION OF DRAWINGS

[0022] 100, limiting clamp; 110, main limiting body; 111, complex section; 112, bottom ring; 113, bottom ring plate; 114, assembly groove; 120, outer screw ring; 130, limiting clamp block; 131, pressure bearing surface; 132, abutting surface; 133, pivot; 200, hydraulic telescopic cylinder; 300, hydraulic equipment. DETAILED DESCRIPTION

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application; the use herein of terms such as "comprise" and "comprising", and "have" and "having", and any variations thereof, is intended to cover a non-exclusive inclusion; the use herein of terms such as "first", "second", and the like, is intended to distinguish between similar objects unless the context indicates otherwise.

[0024] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase that in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. It is expressly understood that the embodiments described herein are merely examples from a whole class of comparable embodiments which those skilled in the art will readily appreciate. It is further understood that the descriptions and specific examples, while indicating preferred embodiments, are intended to be merely exemplary and are not intended to suggest any limitation on the scope of the application.

[0025] The utility model embodiment provides a kind of anchor rod tension detector, as shown in Figures 1-5 The utility model embodiment provides a kind of anchor rod tension detector, as shown in

[0026] Limiting clamp 100, the limiting clamp 100 includes main limiting body 110, outer screw ring 120 and limiting clamp block 130 rotationally connected to main limiting body 110, the main limiting body 110 is nested on the outside of anchor rod, the outer wall of main limiting body 110 is equipped with the screw thread structure with outer screw ring 120, by the rotation process of outer screw ring 120, the limiting clamp block 130 will be accompanied by outer screw ring 120 and self-weight effect and shrink inward or tilt outward;The limiting clamp block 130 is shrunk inward by outer screw ring 120 abutting effect and can clamp anchor rod located in the inside of main limiting body 110;

[0027] The hydraulic telescopic cylinder 200 is nested on the side of the anchor rod to be measured, and one end of the hydraulic telescopic cylinder 200 abuts on the base surface of the fixed anchor rod and is in contact with the main limiting body 110. Under the action of the hydraulic device 300, the hydraulic telescopic cylinder 200 deforms on the main limiting body 110 to generate a pushing force. The main limiting body 110 is in close contact with the anchor rod through the limiting clamp block 130. When the hydraulic telescopic cylinder 200 deforms and pushes the main limiting body 110, it represents that the anchor rod is subjected to a pushing force, and the corresponding pushing force is applied by the hydraulic device 300 to obtain the anchor rod pulling force value.

[0028] In the embodiment, the hydraulic telescopic cylinder 200 and the hydraulic device 300 are both prior art devices. The hydraulic device 300 provides a certain pressure to drive the hydraulic telescopic cylinder 200 to extend in an electric or manual manner. The hydraulic telescopic cylinder 200 is used to push the main limiting body 110. The main limiting body 110 transmits the pushing force to the anchor rod through the limiting clamp block 130. This part belongs to the principle of the existing test technology.

[0029] Here, the contact end surface of the main limiting body 110 and the hydraulic telescopic cylinder 200 is defined as the first end surface. In the normal assembly stage, the outer screw ring 120 is closest to the first end surface. The limiting clamp block 130 will deflect and expand outward in the absence of support, effectively reducing the friction of the limiting clamp block 130 on the anchor rod during assembly, ensuring the convenience of the assembly process and improving the assembly efficiency of the limiting clamp 100.

[0030] As a preferred embodiment in the embodiment, the main limiting body 110 includes a plurality of complex segments 111, a bottom ring 112 and a bottom ring plate 113. The complex segments 111 are arranged in an annular array on the end surface of the bottom ring 112 away from the bottom ring plate 113. A plurality of assembly grooves 114 are formed between the complex segments 111. The limiting clamp block 130 is assembled in the assembly groove 114. The hydraulic telescopic cylinder 200 abuts on the end surface of the bottom ring plate 113 away from the bottom ring 112.

[0031] In the embodiment, the outer wall of the complexing section 111 is provided with threads, the inner wall of the complexing section 111 is an anchor rod placement area, the side wall of the complexing section 111 forms an assembly groove 114 with the adjacent complexing section 111, the limiting clamp block 130 is provided with a rotating shaft 133 near one side of the bottom ring 112, the rotating shaft 133 is assembled in the bearing seat provided in the side wall of the complexing section 111, under the action of gravity, the limiting clamp block 130 will be deflected outward, tilt away from the inner wall of the complexing section 111 and extend out of the outer wall of the complexing section 111, when the outer screw ring 120 rotates upward, the outer screw ring 120 will push the limiting clamp block 130 back to the assembly groove 114 and apply pressure to the anchor rod located in the center of the complexing section 111, so that the limiting clamp block 130 forms a clamping force on the anchor rod, and the main limiting body 110 completes the fixing and clamping action on the anchor rod;

[0032] As a preferred embodiment in the embodiment, the diameter of the bottom ring plate 113 is greater than the diameter of the bottom ring 112 and forms a stage distribution, the bottom ring plate 113 limits the outer screw ring 120 to avoid the outer screw ring 120 from slipping off, and the outer wall of the bottom ring 112 is also provided with threads, so that the outer screw ring 120 can reach the outer wall of the complexing section 111 along the outer wall of the bottom ring 112;

[0033] In a further preferred embodiment of the utility model, the limiting clamp block 130 is provided with a pressure bearing surface 131 and an abutting surface 132, in the process of fixing the anchor rod, the outer screw ring 120 is in contact with the pressure bearing surface 131 and applies a pushing force to it, and the abutting surface 132 is in contact with the anchor rod to form a clamping force on the side of the anchor rod;

[0034] In the initial assembly stage, the outer screw ring 120 is rotated to the outside of the bottom ring 112, the limiting clamp block 130 is tilted outward under the action of gravity to leave a central area by removing the limitation of the limiting clamp block 130, so that the contact between the limiting clamp block 130 and the anchor rod is reduced during the nesting process of the anchor rod in the limiting clamp 100;

[0035] In the embodiment shown in the drawing 3 in the application, the number of complexing sections 111 is two groups, the number of limiting clamp blocks 130 and assembly grooves 114 is also two groups, the number of complexing sections 111 can be increased, the complexing sections 111 are further divided according to the size of the bottom ring 112 to form multiple groups of limiting clamp blocks 130 and assembly grooves 114, so that the limiting and fixing needs are better met;

[0036] It should be noted that, for the foregoing embodiments, in order to simply describe, they are all expressed as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, certain steps can adopt other sequences or be carried out at the same time.Secondly, those skilled in the art should know that the embodiments described in the specification all belong to preferred embodiments, and the actions and modules involved are not necessarily necessary for the utility model.

[0037] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the protection scope of the present application. Obviously, the described examples are only some of the embodiments of the present application, but not all the embodiments. Based on these examples, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application. Although the present application has been described in detail with reference to the above examples, those skilled in the art can still combine, add or delete the features in the embodiments of the present application according to the circumstances without creative work, so as to obtain different technical solutions which do not deviate from the concept of the present application in essence. These technical solutions also fall within the scope of the present application.

Claims

1. An anchor tension tester, characterized in that: include: The limiting clamp includes a main limiting body, an outer screw ring and a limiting clamping block rotatably connected to the main limiting body. The main limiting body is nested on the outside of the anchor rod. The outer wall of the main limiting body is provided with a threaded structure with the outer screw ring. During the rotation of the outer screw ring, the limiting clamping block will shrink inward or tilt outward with the support of the outer screw ring and its own weight; A hydraulic telescopic cylinder and a hydraulic device connected to the hydraulic telescopic cylinder through a pipeline. The hydraulic telescopic cylinder is nested on the peripheral side of the anchor rod to be tested. One end of the hydraulic telescopic cylinder is supported on the base surface of the fixed anchor rod, and the other end is in contact and connected with the main limit body. Under the action of the hydraulic equipment, the hydraulic telescopic cylinder is deformed to generate thrust on the main limit body.

2. An anchor tension tester according to claim 1, characterized in that: The main limiting body includes several groups of complexing sections, a bottom ring and a bottom ring plate. The complexing sections are distributed in a circular array on the end surface of the bottom ring away from the bottom ring plate, and several groups of assembly grooves distributed in a circular array are formed between the complexing sections.

3. An anchor tension tester according to claim 2, characterized in that: The outer wall of the complexing section is provided with a thread, and the outer wall of the bottom ring is also provided with a thread. The outer spiral ring reaches the outer wall of the complexing section along the outer wall of the bottom ring through the thread.

4. An anchor tension tester according to claim 3, characterized in that: A plurality of assembly grooves distributed in an annular array are formed between the complexing sections, and the limiting clamping blocks are assembled in the assembly grooves.

5. An anchor tension tester according to claim 4, characterized in that: A rotating shaft is provided on one side of the limiting clamp block close to the bottom ring, and the rotating shaft is assembled in a bearing seat provided on the side wall of the complexing section.

6. An anchor tension tester according to claim 5, characterized in that: The limiting clamp is provided with a pressure-bearing surface and a supporting surface. During the process of fixing the anchor rod, the outer screw ring contacts and connects with the pressure-bearing surface and applies thrust thereto, and the supporting surface contacts and connects with the anchor rod to form a clamping force around the anchor rod.

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