Angle-adjustable foot-lock bolt construction auxiliary tool

Abstract

The utility model provides an angle-adjustable foot-lock bolt construction auxiliary tool which comprises a detachable clamping sleeve, a first sleeve and a second sleeve, the first sleeve and the second sleeve are rotatably arranged outside the detachable clamping sleeve, and the center height difference of the first sleeve and the second sleeve is adjustable. An I-shaped cavity is formed in the detachable clamping sleeve, the first sleeve is located at a first wing part of the I-shaped cavity, and the second sleeve is located at a second wing part of the I-shaped cavity. By means of the first sleeve and the second sleeve which are adjustable in center distance and rotationally arranged on the detachable clamping sleeve, the drilling angle of the feet-lock bolt during drilling can be accurately adjusted, the construction qualification rate of the feet-lock bolt can be greatly increased, it is guaranteed that the feet-lock bolt can well bear the bearing capacity of a supporting structure, stability of the supporting structure is guaranteed, and the drilling efficiency of the feet-lock bolt is improved. The safety risk of tunnel construction is reduced; the device has the advantages of adjustability, detachability, simplicity in operation and convenience in construction, and can effectively solve the problem that the driving angle is difficult to control when the feet-lock bolt is constructed.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to an angle-adjustable locking foot anchor rod construction auxiliary tool. Background Art

[0002] The locking foot anchor is a commonly used process component in the initial support construction of tunnel projects. The locking foot anchor can constrain the rotational freedom of the steel arch frame along the axial direction of the tunnel. A reasonable anchor construction angle is conducive to limiting the deformation of the surrounding rock and helping the support structure to exert its bearing capacity. The locking foot anchor has the advantages of good support effect, convenient construction, and high safety. It is an effective measure to ensure the stability of the support structure and ensure construction safety. However, during the on-site locking foot anchor construction, it is difficult to ensure that the angle of the anchor meets the angle range required by the design by relying solely on surface positioning, thereby greatly reducing the bearing capacity of the locking foot anchor to bear the support structure and increasing the safety risk of tunnel construction. Utility Model Content

[0003] The utility model aims to provide a locking foot anchor rod construction auxiliary tool with adjustable angle to solve the above-mentioned problems.

[0004] The technical solution of the utility model is: an angle-adjustable locking foot anchor construction auxiliary tool, which includes: a detachable ferrule, a sleeve one and a sleeve two, wherein the sleeve one and the sleeve two are rotatably arranged outside the detachable ferrule, and the center height difference between the two is adjustable; an I-shaped cavity is provided in the detachable ferrule, the sleeve one is located at the first wing of the I-shaped cavity, and the sleeve two is located at the second wing of the I-shaped cavity.

[0005] Preferably, a mounting block is provided on the detachable ferrule, a rotating screw is provided in the mounting block, an internal threaded sleeve is sleeved on the rotating screw, and the internal threaded sleeve is connected to the first sleeve and / or the second sleeve.

[0006] Preferably, a slide groove is provided on the detachable ferrule, the slide groove is consistent with the extension direction of the rotating screw, and the internal threaded sleeve is connected to the slider in the slide groove.

[0007] Preferably, at least one end of the rotating screw is provided with an adjusting dial.

[0008] Preferably, the detachable ferrule comprises half shell one and half shell two, the recesses of half shell one and half shell two are opposite to each other and enclose the I-shaped cavity, and a detachable connector one is provided on one connecting side of half shell one and half shell two, and a detachable connector two is provided on the other connecting side.

[0009] Preferably, the detachable connecting member 1 comprises a spring buckle and a buckle claw, which are respectively arranged on the half shell 1 and the half shell 2.

[0010] Preferably, the detachable connecting member 2 comprises a connecting plate 1 and a connecting plate 2, which are respectively arranged on the half shell 1 and the half shell 2, and the connecting plate 1 and the connecting plate 2 are pin-connected.

[0011] Preferably, connecting block 1 and connecting block 2 are respectively provided on opposite sides of connecting plate 1 and connecting plate 2, a pin is provided at the bottom of connecting block 1, the pin is consistent with the extension direction of the I-shaped cavity, and a pin groove adapted to the pin is provided on connecting block 2.

[0012] Preferably, the side walls of the recesses of the half shell one and the half shell two are both provided with anti-slip rubber pads.

[0013] The beneficial effects of the utility model are as follows: by means of the sleeve one and the sleeve two with adjustable center spacing, and by rotating them on a detachable sleeve, the drilling angle of the locking foot anchor rod during drilling can be accurately adjusted, which can greatly improve the qualified rate of the locking foot anchor rod construction, ensure that the locking foot anchor rod can well withstand the bearing capacity of the supporting structure, ensure the stability of the supporting structure, and reduce the safety risks of tunnel construction; the device has the advantages of being adjustable and detachable, simple to operate and convenient to construct, and can effectively solve the problem of the difficulty in controlling the driving angle of the locking foot anchor rod during construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a usage state diagram of an embodiment of the utility model;

[0015] Figure 2 It is a first perspective stereogram of an embodiment of the utility model;

[0016] Figure 3 It is a second viewing angle stereogram of an embodiment of the utility model;

[0017] Figure 4 It is a top view of the connection between the detachable ferrule and the internal threaded sleeve in the embodiment of the utility model;

[0018] Figure 5 This is a structural diagram of a detachable connecting member 2 in an embodiment of the utility model;

[0019] In the figure:

[0020] 1. Removable card sleeve; 1-1, half shell one; 1-2, half shell two; 1-3, slide groove;

[0021] 2. Casing 1;

[0022] 3. Casing 2;

[0023] 4. I-shaped cavity; 4-1. first wing; 4-2. second wing;

[0024] 5. Removable connecting piece 1; 5-1. Spring buckle; 5-2. Buckle claw;

[0025] 6. Removable connector 2; 6-1. Connecting plate 1; 6-2. Connecting plate 2; 6-3. Connecting block 1; 6-4. Connecting block 2; 6-5. Pin; 6-6. Pin groove;

[0026] 7. Anti-slip rubber pad;

[0027] 8. Install the block;

[0028] 9. Turn the screw;

[0029] 10. Internal thread sleeve;

[0030] 11. Slider;

[0031] 12. Adjust the dial. DETAILED DESCRIPTION

[0032] The technical solution of the embodiment of the utility model is described in detail below with reference to the accompanying drawings.

[0033] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "set" and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood by specific circumstances.

[0034] Reference Figure 1The utility model provides an angle-adjustable locking foot anchor construction auxiliary tool, which comprises: a detachable ferrule 1, a sleeve 1 2 and a sleeve 2 3, wherein the sleeve 1 2 and the sleeve 2 3 are rotatably arranged outside the detachable ferrule 1, and the center height difference between the two is adjustable; an I-shaped cavity 4 is arranged in the detachable ferrule 1, the sleeve 1 2 is located at the first wing 4-1 of the I-shaped cavity 4, and the sleeve 2 3 is located at the second wing 4-2 of the I-shaped cavity 4. The size of the detachable sleeve 1 and the I-shaped cavity 4 is set according to the I-beam on the steel arch frame used for tunnel support. Before the construction of the locking foot anchor, the detachable sleeve 1 is set on the outside of the I-beam of the steel arch frame, and the casing 1 2 and the casing 2 3 are respectively located on both sides of the steel arch frame. According to the design angle of the locking foot anchor, the center distance and angle of the casing 1 2 and the casing 2 3 are adjusted, and the drilling tool is passed through the casing 1 2 and the casing 2 3 in turn to drill. After the drilling is completed, the auxiliary tool is removed, the hole is cleaned, the hole is checked, the locking foot anchor is installed, grouting is performed, and the locking foot anchor and the steel arch frame are welded.

[0035] According to the two-point straight line, when the positions of casing 1 2 and casing 2 3 are fixed on the detachable sleeve 1, the center line thereof is parallel to the installation angle of the locking foot anchor rod, and because the drill rod is an integrally formed cylindrical rod, when it continuously passes through casing 1 2 and casing 2 3, the axes of casing 1 2 and casing 2 3 can be adjusted to a coincident state, thereby ensuring the accuracy of the drilling angle, improving the one-time construction pass rate of the locking foot anchor rod, and ensuring that the locking foot anchor rod has a good bearing capacity of the support structure, ensuring the stability of the support structure, and reducing the safety risks of tunnel construction.

[0036] The detachable ferrule 1 comprises a half shell 1-1 and a half shell 1-2, and the half shell 1-1 and the half shell 1-2 are provided with recesses adapted to the outer edge of the steel arch frame, and the recesses of the half shell 1-1 and the half shell 1-2 are opposite to each other to enclose an I-shaped cavity 4, and a detachable connector 1 5 is provided on one connecting side of the half shell 1-1 and the half shell 1-2, and a detachable connector 2 6 is provided on the other connecting side to ensure a stable connection and convenient installation and disassembly.

[0037] Reference Figure 2-3and 5, the detachable connecting member 5 includes a spring buckle 5-1 and a buckle claw 5-2, which are respectively arranged on the half shell 1-1 and the half shell 1-2; the detachable connecting member 2 6 includes a connecting plate 1 6-1 and a connecting plate 2 6-2, which are also respectively arranged on the half shell 1-1 and the half shell 1-2, and the opposite sides of the connecting plate 1 6-1 and the connecting plate 2 6-2 are respectively provided with a connecting block 1 6-3 and a connecting block 2 6-4, and the bottom of the connecting block 1 6-3 is provided with a pin column 6-5, and the pin column 6-5 is consistent with the extension direction of the I-shaped cavity 4, and the connecting block 2 6-4 is provided with a pin groove 6-6 adapted to the pin column 6-5. During construction, first clamp the half shell 1-1 and the half shell 1-2 on both sides of the steel arch frame respectively, and the detachable connecting piece 1 5 and the detachable connecting piece 2 6 are respectively distributed on the two wing plates of the steel arch frame. First, insert the pin 6-5 into the pin groove 6-6, and then connect the spring buckle 5-1 and the buckle claw 5-2 on the other side of the tool.

[0038] In order to prevent the detachable clamping sleeve 1 from sliding relative to the steel arch frame, which would cause the installation position of the locking foot anchor to shift, the side walls of the recesses of the half shell 1-1 and the half shell 2 1-2 are provided with anti-skid rubber pads 7 in this embodiment. The anti-skid rubber pads 7 are used to increase the friction between the detachable clamping sleeve 1 and the outer surface of the steel arch frame to prevent slippage and affect the construction quality.

[0039] During normal construction, locking anchor rods need to be arranged on both sides of the steel arch frame. Therefore, in this embodiment, two sets of sleeves 1 2 and sleeves 2 3 with corresponding positions are provided on the detachable sleeve 1 to assist in positioning the drilling holes for the shrinking anchor rods on both sides of the steel arch frame.

[0040] To facilitate construction adjustment, it is not necessary to set both sleeve 1 2 and sleeve 2 3 to be adjustable in position on the detachable sleeve 1. For example, one of sleeve 1 2 and sleeve 2 3 can be set to be fixed in position, and the other can be set to be adjustable in position. The following example is introduced based on the movable sleeve 2 and the fixed sleeve 3.

[0041] Both half shell 1-1 and half shell 2 1-2 are provided with mounting blocks 8, which are respectively located at both ends of half shell 1-1 and half shell 2 1-2. A rotating screw 9 is provided in the mounting block 8, and an internal threaded sleeve 10 is sleeved on the rotating screw 9. The sleeve 1 2 is rotatably connected with the internal threaded sleeve 10. On the one hand, the position of the sleeve 2 on the rotating screw 9 can be changed by cooperating with the rotating screw 9 and the internal threaded sleeve 10, that is, the center height difference between the sleeve 1 2 and the sleeve 2 3 can be adjusted. On the other hand, the sleeve 1 2 is rotatably connected with the internal threaded sleeve 10, which is convenient for adjusting the axis coincidence of the sleeve 1 2 and the sleeve 2 3 after the position is fixed.

[0042] In order to make the moving block move smoothly, one side wall of the internal thread sleeve 10 can be set to a surface that is closely fitted with the outer wall of the removable ferrule 1, so that when the rotating screw 9 rotates, the internal thread sleeve 10 cannot rotate and can only move along the axial direction of the rotating screw 9; a slide groove 1-3 can also be set on the removable ferrule 1 (refer to the attached Figure 4 ), a slidable slider 11 is provided in the slide groove 1-3, the slide groove 1-3 is consistent with the extension direction of the rotating screw 9, the internal threaded sleeve 10 is connected to the slider 11 in the slide groove 1-3, and through the limitation of the slider 11, when the rotating screw 9 rotates, the internal threaded sleeve 10 can only move along the axial direction of the rotating screw 9, but cannot rotate.

[0043] For the convenience of adjustment, at least one end of the rotating screw rod 9 is provided with an adjusting dial 12, and the position adjustment of the moving block and the sleeve 2 can be easily achieved by rotating the adjusting dial 12.

[0044] The steps for construction using this auxiliary tool include:

[0045] (1) Construction preparation: After tunnel excavation and cross-section processing are completed, the initial concrete spraying is carried out; after the initial concrete spraying is completed, the arch frame is installed according to the engineering design; the position and angle of the locking anchor rod are determined according to the construction drawings;

[0046] (2) Installing the auxiliary tool: Install the auxiliary tool on the arch frame at a position corresponding to the preset position of the locking foot anchor rod, rotate the adjustment dial 12, and adjust the position of the sleeve 1 2 on the detachable sleeve 1 until the center line connecting the sleeve 1 2 and the sleeve 2 3 is in the same direction as the preset angle of the locking foot anchor rod;

[0047] (3) Drilling: The drill rod is passed through the casing 1 2 and the casing 2 3 to drill a hole. After the drilling is completed, the auxiliary tool is removed and the hole is cleaned;

[0048] (4) Install the locking anchor rod: After the hole is checked and found to be correct, insert the locking anchor rod and inject grout;

[0049] (5) Weld the locking anchor rod to the steel arch frame to complete the construction.

[0050] Compared with the prior art, the beneficial effects of the utility model are: through the sleeve 1 2 and the sleeve 2 3 with adjustable center spacing, and by rotating them on the detachable sleeve 1, the drilling angle of the locking foot anchor rod during drilling can be accurately adjusted, which can greatly improve the construction qualification rate of the locking foot anchor rod, ensure that the locking foot anchor rod can well withstand the bearing capacity of the support structure, ensure the stability of the support structure, and reduce the safety risk of tunnel construction; the device has the advantages of being adjustable, detachable, simple to operate and convenient to construct, and can effectively solve the problem of difficult control of the driving angle during the construction of the locking foot anchor rod.

[0051] The above are preferred implementations of the present utility model. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present utility model. These improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. An angle-adjustable locking foot anchor construction auxiliary tool, characterized in that: include: A detachable ferrule, a sleeve one and a sleeve two, wherein the sleeve one and the sleeve two are rotatably arranged outside the detachable ferrule, and the center height difference between the two is adjustable; an I-shaped cavity is arranged in the detachable ferrule, the sleeve one is located at the first wing of the I-shaped cavity, and the sleeve two is located at the second wing of the I-shaped cavity.

2. The angle-adjustable locking foot anchor construction auxiliary tool according to claim 1, characterized in that: The detachable ferrule is provided with a mounting block, a rotating screw is provided in the mounting block, an internal thread sleeve is sleeved on the rotating screw, and the internal thread sleeve is connected to the first sleeve and / or the second sleeve.

3. The angle-adjustable locking foot anchor construction auxiliary tool according to claim 2, characterized in that: The detachable ferrule is provided with a slide groove, the slide groove is consistent with the extension direction of the rotating screw, and the internal thread sleeve is connected to the slider in the slide groove.

4. The angle-adjustable locking foot anchor construction auxiliary tool according to claim 2, characterized in that: At least one end of the rotating screw is provided with an adjusting dial.

5. The angle-adjustable locking foot anchor construction auxiliary tool according to any one of claims 1 to 4, characterized in that: The detachable ferrule comprises half shell one and half shell two, the recesses of the half shell one and the half shell two are opposite to each other to enclose the I-shaped cavity, and a detachable connector one is provided on one connecting side of the half shell one and the half shell two, and a detachable connector two is provided on the other connecting side.

6. The angle-adjustable locking foot anchor construction auxiliary tool according to claim 5, characterized in that: The detachable connecting member 1 comprises a spring buckle and a buckle claw, which are respectively arranged on the half shell 1 and the half shell 2.

7. The angle-adjustable locking foot anchor construction auxiliary tool according to claim 5, characterized in that: The detachable connecting member 2 includes a connecting plate 1 and a connecting plate 2, which are respectively arranged on the half shell 1 and the half shell 2, and the connecting plate 1 and the connecting plate 2 are pin-connected.

8. The angle-adjustable locking foot anchor construction auxiliary tool according to claim 7, characterized in that: A connecting block 1 and a connecting block 2 are respectively provided on opposite sides of the connecting plate 1 and the connecting plate 2, a pin is provided at the bottom of the connecting block 1, and the pin is consistent with the extension direction of the I-shaped cavity, and a pin groove adapted to the pin is provided on the connecting block 2.

9. The angle-adjustable locking foot anchor construction auxiliary tool according to any one of claims 6-8, characterized in that: The side walls of the recesses of the half shell 1 and the half shell 2 are both provided with anti-slip rubber pads.

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