Embedded foundation bolt threading device

Abstract

The utility model discloses an embedded foundation bolt threading device which is used for threading the part, exposed out of the ground, of an embedded bolt and is characterized in that the threading device comprises a first sleeve, a second sleeve, a threading limiting assembly, a threading die fixing head and a threading die; wherein the top of the second sleeve and the middle of the first sleeve are vertically and fixedly connected to form an integral structure, the threading die fixing head is fixed to the bottom of the second sleeve, and the threading die is detachably and fixedly installed in a notch in the bottom of the threading die fixing head. The utility model solves the problem that when a steel structure factory building is installed, the interval between a large number of embedded foundation bolts is small, and threading operation of a new threaded section is inconvenient to carry out.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular, to a pre-embedded anchor bolt threading device. Background Technology

[0002] In the field of building construction, large cocoa processing plants often employ steel structure designs with reinforced concrete foundations for the main structure and equipment. Anchor bolts are pre-embedded in these foundations for the installation of upper steel components and equipment. Due to the large number of foundations and their complex structural forms, a large number of pre-embedded anchor bolts are required. During actual construction, the exposed length of some pre-embedded anchor bolts may exceed design requirements, while the thread length of the threaded section (approximately 20cm) is fixed, preventing the adjusting nut from being inserted into the fixed position via the threaded section. Given the high precision required for the planar position and elevation positioning of the pre-embedded anchor bolts during steel structure and equipment installation, it is necessary to thread some anchor bolts later to extend the thread length and meet installation requirements. However, since the anchor bolts are already anchored into the concrete structure, and the spacing between adjacent bolts is small, conventional threading equipment cannot be used conveniently, severely restricting the efficiency of steel structure installation. Therefore, a flexible device is needed that can easily thread the exposed portion of the pre-embedded anchor bolts. Summary of the Invention

[0003] To address the aforementioned problems, the purpose of this utility model is to provide a pre-embedded anchor bolt threading device to solve the problem that the small spacing between a large number of pre-embedded anchor bolts during the installation of steel structure workshops makes it inconvenient to perform threading operations on new threaded sections.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A threading device for pre-embedded anchor bolts is used to thread the exposed portion of pre-embedded bolts. The device comprises a first sleeve, a second sleeve, a threading limiting assembly, a die fixing head, and a die. The top of the second sleeve is vertically and fixedly connected to the middle of the first sleeve to form an integral structure. The die fixing head is fixed to the bottom of the second sleeve, and the die is detachably fixedly installed in a groove at the bottom of the die fixing head. The threading limiting assembly includes a limiting slider that can slide freely up and down near the die fixing head and is disposed within the second sleeve; a limiting groove is vertically disposed on the wall of the second sleeve; a sliding rod is fixedly connected to one side of the limiting slider and extends through the limiting groove to the outside of the second sleeve; and a locking nut is threadedly connected to the outer end of the sliding rod.

[0006] Preferably, the present invention also includes a rocker arm inserted inside the first sleeve, the length of which is 1.5-2 times the length of the first sleeve.

[0007] Preferably, the second sleeve is a telescopic rod-shaped structure, the second sleeve includes a lower sleeve, an upper sleeve that can slide freely up and down and is inserted into the lower sleeve, a plurality of limiting holes provided on the upper sleeve, a pin hole provided on the lower sleeve, and a pin rod that cooperates with the pin hole and the limiting holes to limit the upper sleeve.

[0008] Preferably, the outer peripheral sidewall of the die is provided with a plurality of die fixing holes at even intervals, and the bottom groove sidewall of the die fixing head is provided with a plurality of positioning screw holes corresponding to the die fixing holes and positioning bolts threadedly connected to the positioning screw holes, so as to screw the positioning bolts into the positioning screw holes and the die fixing holes in sequence, thereby enabling the die to be detachably and fixedly installed in the bottom groove of the die fixing head.

[0009] Preferably, the number of the die fixing holes is 2-3.

[0010] Preferably, the locking nut has symmetrically arranged outwardly extending rotating handles on both sides.

[0011] Preferably, the first sleeve and the second sleeve are steel pipes.

[0012] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention forms an installation body by connecting the first sleeve and the second sleeve perpendicularly to each other, and sets a die fixing head and a die at the bottom of the second sleeve. The overall structure of the device is simple and occupies little space when in use. When in use, the die can be rotated downward by rotating the first sleeve to complete the cutting of the pre-embedded bolt to form a new thread segment. The operation is convenient and quick, and the threading efficiency is high. It solves the problem that the spacing of a large number of pre-embedded anchor bolts is small and it is inconvenient to perform threading operation of new thread segments when installing steel structure workshops. (2) In the present invention, the die is detachably installed in the groove of the die fixing head, so that the die of the appropriate specification can be selected for installation according to the specification of the pre-embedded anchor bolt. At the same time, the threading position of the pre-embedded bolt can be controlled by setting the threading limit component, which greatly increases the flexibility and practicality of the device of the present invention. Attached Figure Description

[0013] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 yes Figure 1 Enlarged schematic diagram of a local structure in the middle;

[0016] Figure 3This is the front view of this utility model;

[0017] Figure 4 This is the left view of this utility model;

[0018] Figure 5 This is a diagram showing the state of the present invention in use;

[0019] The meanings of the labels in the above diagrams are as follows: 1-First sleeve; 2-Second sleeve; 201-Lower sleeve; 202-Upper sleeve; 203-Limiting hole; 204-Pin hole; 205-Pin rod; 3-Threading limiting assembly; 301-Limiting slider; 302-Limiting groove; 303-Slide rod; 304-Locking nut; 305-Rotating handle; 4-Die fixing head; 401-Positioning screw hole; 402-Positioning bolt; 5-Die; 501-Die fixing hole; 6-Embedded bolt; 7-Rock arm; 8-New threaded section; 9-Bolt washer; 10-Old threaded section; 11-Concrete foundation. Detailed Implementation

[0020] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0021] This embodiment provides a threading device for pre-embedded anchor bolts, used to thread the exposed portion of the pre-embedded bolt 6. Please refer to [link / reference needed]. Figures 1 to 4 It includes a first sleeve 1, a second sleeve 2, a threading limiting assembly 3, a die fixing head 4, and a die 5; wherein, the top of the second sleeve 2 is vertically fixedly connected to the middle of the first sleeve 1 to form an integral structure; the die fixing head 4 is fixed to the bottom of the second sleeve 2, and the bottom of the die fixing head 4 is provided with a groove that communicates with the second sleeve 2; the die 5 is detachably fixedly installed in the groove at the bottom of the die fixing head 4, and the die 5 is a commonly used threading tool for machining external threads in the prior art; the threading limiting assembly 3 includes a limiting slider 301 that can slide freely up and down near the die fixing head 4 and is disposed in the second sleeve 2; a limiting groove 302 that is vertically disposed on the cylinder wall of the second sleeve 2; a sliding rod 303 that is fixedly connected to one side of the limiting slider 301 and extends through the limiting groove 302 to the outside of the second sleeve 2; and a locking nut 304 that is threadedly connected to the outer end of the sliding rod 303; please refer to Figure 5During the construction of the steel structure workshop, the pre-embedded bolt 6 is connected to the bolt washer 9 pre-embedded in the ground. The old threaded section 10 at the top of the pre-embedded bolt 5 is exposed on the ground. A new threaded section 8 needs to be formed by threading the exposed section of the pre-embedded bolt 5. When using this utility model device, the locking nut 304 should be loosened first so that the limiting slider 301 can be adjusted to slide to a suitable position in the second sleeve 2 by the slide rod 303. Then, the locking nut 304 should be tightened to fix the position of the limiting slider 301 so that the die 5 can rotate downward to cut the pre-embedded bolt 6 to the required position to form a new threaded section. At the same time, a die of the same specification as the old threaded section should be selected. The die 5 is installed in the groove at the bottom of the die fixing head 4. After adjusting the threading limit assembly 3 and selecting and installing the die 5, the die 5 can be placed on the top of the pre-embedded bolt 6. Then, by rotating the first sleeve 1, the second sleeve 2, the die fixing head 4 and the die 5 are driven to rotate, so that the die 5 rotates downward to complete the cutting of the pre-embedded bolt 6 to form a new thread segment. As the die 5 rotates downward to cut, the top of the pre-embedded bolt 6 will penetrate the die 5 and the die fixing head 4 and extend into the second sleeve 2 until it abuts against the lower surface of the limit slider 301. At this time, the threading operation of the pre-embedded anchor bolt is completed.

[0022] Furthermore, in a preferred embodiment, please refer to Figure 1 The second sleeve 2 is a telescopic rod-shaped structure, which not only facilitates storage but also allows for adjustment to different heights, reducing the time workers spend bending over and improving their work comfort. Specifically, the second sleeve 2 includes a lower sleeve 201, an upper sleeve 202 that can slide freely up and down and is inserted into the lower sleeve 201, multiple limiting holes 203 on the upper sleeve 202, a pin hole 204 on the lower sleeve 201, and a pin rod 205 that cooperates with the pin hole 204 and the limiting holes 203 to limit the upper sleeve 202.

[0023] Furthermore, in a preferred embodiment, please refer to Figure 1 The threading device of this utility model also includes a rocker arm 7 inserted inside the first sleeve 1. The length of the rocker arm 7 is 1.5-2 times the length of the first sleeve 1. Based on this setting, turning the rocker arm 7 can save more effort than turning the first sleeve 1, which is conducive to reducing the labor intensity of workers. Preferably, the rocker arm 2 is also set as a telescopic rod structure to facilitate storage and turnover.

[0024] Furthermore, in a preferred embodiment, please refer to Figure 1 and Figure 2The outer peripheral sidewall of the die 5 is provided with a plurality of die fixing holes 501 at even intervals. The bottom groove sidewall of the die fixing head 4 is provided with a plurality of positioning screw holes 401 corresponding to the die fixing holes 501 and positioning bolts 402 threadedly connected to the positioning screw holes 401, so that the positioning bolts 402 are screwed into the positioning screw holes 401 and the die fixing holes 501 in sequence, thereby allowing the die 5 to be detachably and fixedly installed in the bottom groove of the die fixing head 4. Preferably, the number of die fixing holes 501 is 2-3, and the positioning bolts 402 can be wing bolts, so as to facilitate manual tightening of the wing bolts to install or remove the die 5.

[0025] To facilitate the rotation of the lock nut 304, further, in a preferred embodiment, please refer to... Figure 1 and Figure 2 The locking nut 304 has symmetrically arranged outwardly extending rotating handles 305 on both sides.

[0026] Furthermore, in a preferred embodiment, the first sleeve 1 and the second sleeve 2 are steel pipes.

[0027] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of written expression, and the existence of an infinite number of specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this utility model, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of this utility model to other occasions without modification, should all be considered as protection of this utility model.

Claims

1. A pre-embedded anchor bolt threading device, used for threading the exposed portion of the pre-embedded bolt (6), characterized in that, The threading device includes a first sleeve (1), a second sleeve (2), a threading limiting assembly (3), a die fixing head (4), and a die (5); wherein, the top of the second sleeve (2) is vertically fixedly connected to the middle position of the first sleeve (1) to form an integral structure, the die fixing head (4) is fixed to the bottom of the second sleeve (2), and the die (5) is detachably fixedly installed in the groove at the bottom of the die fixing head (4); the threading limiting assembly (3) includes a limiting slider (301) located near the die fixing head (4) and freely sliding up and down in the second sleeve (2), a limiting groove (302) vertically arranged on the cylinder wall of the second sleeve (2), a sliding rod (303) fixedly connected to one side of the limiting slider (301) and extending through the limiting groove (302) to the outside of the second sleeve (2), and a locking nut (304) threadedly connected to the outer end of the sliding rod (303).

2. The pre-embedded anchor bolt threading device as described in claim 1, characterized in that, It also includes a rocker arm (7) inserted inside the first sleeve (1), the length of which is 1.5-2 times the length of the first sleeve (1).

3. The pre-embedded anchor bolt threading device as described in claim 1, characterized in that, The second sleeve (2) is a telescopic rod-shaped structure. The second sleeve (2) includes a lower sleeve (201), an upper sleeve (202) that can slide freely up and down and is inserted into the lower sleeve (201), a plurality of limiting holes (203) provided on the upper sleeve (202), a pin hole (204) provided on the lower sleeve (201), and a pin rod (205) that cooperates with the pin hole (204) and the limiting hole (203) to limit the upper sleeve (202).

4. The pre-embedded anchor bolt threading device as described in claim 1, characterized in that, The outer peripheral sidewall of the die (5) is provided with a plurality of die fixing holes (501) at uniform intervals. The bottom groove sidewall of the die fixing head (4) is provided with a plurality of positioning screw holes (401) corresponding to the die fixing holes (501) and positioning bolts (402) threadedly connected to the positioning screw holes (401).

5. The pre-embedded anchor bolt threading device as described in claim 4, characterized in that, The number of the die fixing holes (501) is 2-3.

6. The pre-embedded anchor bolt threading device as described in claim 1, characterized in that, The locking nut (304) has symmetrically arranged outwardly extending rotating handles (305) on both sides.

7. The pre-embedded anchor bolt threading device as described in claim 1, characterized in that, The first sleeve (1) and the second sleeve (2) are steel pipes.

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