A drilling apparatus for releasing pre-stress

Abstract

The utility model discloses a kind of drilling equipment for releasing prestress, it is related to bridge engineering technical field, including two drilling machines, first connecting piece is connected between two drilling machines, the middle part of first connecting piece is fixedly connected with rotating sleeve, rotating sleeve is rotatably connected with threaded sleeve, the inside of threaded sleeve is equipped with thread, threaded sleeve is threadedly connected with vertically arranged screw rod, first connecting piece and screw rod are perpendicular to each other, the lower end of screw rod is fixedly connected with second connecting piece, second connecting piece is perpendicular to screw rod, the end of second connecting piece is connected with first sliding block, drilling machine is fixedly connected with the second sliding block slidingly connected with first sliding block, second sliding block vertically slides relative to first sliding block.The utility model is mainly used for ensuring that the drilling depth of both sides is consistent when cutting operation is carried out.

Description

Technical Field

[0001] This utility model belongs to the field of bridge engineering technology, and specifically relates to a drilling device for releasing prestress. Background Technology

[0002] In prestressed concrete, steel structure, or power transmission line tower foundation projects, prestress release refers to the process of gradually eliminating or adjusting the tensile or compressive stresses pre-applied within a component through specific technical means, restoring it to the stress state required by the design or completely unloading it. This process is a crucial step in prestressed engineering, directly affecting the stability, structural safety, and service life of the components. In existing technologies, prestress release is achieved by drilling holes in the building.

[0003] When drilling and cutting reinforcing bars, symmetrical structures require "symmetry at both ends and synchronization in the middle". For example, the reinforcing bars of bridge beams need to be cut first in the two side holes and then in the middle hole. In order to achieve symmetry at both ends, two workers perform the cutting operation on both sides at the same time when performing symmetrical cutting. However, it is difficult to ensure that the cutting depth on both sides is consistent when performing the cutting operation. Utility Model Content

[0004] The purpose of this invention is to provide a drilling device for releasing prestress, thereby overcoming the defect that it is difficult to ensure consistent cutting depth on both sides during cutting operations. The specific technical solution is as follows: A drilling device for releasing prestress includes two drilling rigs connected by a first connecting member. A rotating sleeve is fixedly connected to the middle of the first connecting member, and a threaded sleeve is rotatably connected to the rotating sleeve. The inner side of the threaded sleeve is threaded, and a vertically arranged screw is threadedly connected to the threaded sleeve. The first connecting member is perpendicular to the screw. A second connecting member is fixedly connected to the lower end of the screw. The second connecting member is perpendicular to the screw. A first slider is connected to the end of the second connecting member. A second slider is fixedly connected to the drilling rig and slidably connected to the first slider. The second slider slides vertically relative to the first slider.

[0005] Preferably, both the first connector and the second connector are telescopic, and the second connector is equipped with a drive component for driving the telescopic movement.

[0006] Preferably, the second connecting member includes a central sleeve, with sliding sleeves slidably connected to both ends of the central sleeve. The sliding sleeves are located on the outer side of the central sleeve, and the outer end of the sliding sleeve is fixedly connected to the first slider. The driving member is used to move the two sliding sleeves simultaneously inward or outward so that the distance between the two drilling rigs and the center of the central sleeve is equal.

[0007] Preferably, the driving component includes a dual-axis motor located inside the central sleeve. Both output ends of the dual-axis motor are connected to connecting rods. The end of each connecting rod is connected to a threaded post. The threaded post is threadedly connected to the sliding sleeve. When the threaded post rotates, the sliding sleeve moves horizontally relative to the threaded post.

[0008] Preferably, the outer side of the sliding sleeve is fixedly connected to a telescopic rod that is fixedly connected to the middle sleeve. When the sliding sleeve moves relative to the middle sleeve, the telescopic rod extends or retracts.

[0009] Preferably, a rotating handle is connected above the threaded sleeve for rotating the threaded sleeve.

[0010] Preferably, a support base is fixedly connected to the lower part of the middle sleeve, and a mounting column is connected between the support base and the middle sleeve.

[0011] Preferably, the bottom of the support base is flush with the lower side of the first slider.

[0012] Preferably, the second slider has a dovetail groove, and the first slider is fixedly connected to a slider that mates with the dovetail groove of the second slider.

[0013] Compared with existing technologies, this utility model has the following beneficial effects: 1. This utility model changes the drilling depth of two drills by rotating the threaded sleeve, which makes the depth easy to adjust. At the same time, rotating the thread slows down the descent speed of the drill, making it easier to control the descent depth. Also, since the two drills are on the same horizontal plane, it is possible to better control the consistent cutting depth on both sides during the cutting operation.

[0014] 2. Both the first and second connecting parts of this utility model are telescopic parts, so that the distance between the two drilling machines can be adjusted as needed. The second connecting part is connected to a drive unit, and the extension length of the sliding sleeve can be adjusted by controlling the dual-axis motor. At the same time, since the dual-axis motors have the same speed, the extension length of the two sliding sleeves can be made the same. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. The elements or parts in the drawings are not necessarily drawn to scale.

[0016] Figure 1 This is a schematic diagram of the rear structure of this utility model.

[0017] Figure 2 This is an axonometric view of the present invention.

[0018] Figure 3This is a schematic diagram of the utility model in its open state.

[0019] Figure 4 This is a front view of the utility model in its extended state.

[0020] Figure 5 This is a cross-sectional view of the second connector of this utility model.

[0021] Explanation of key figure labels: 1-Drilling rig, 2-First connecting piece, 3-Threaded sleeve, 31-Rotating handle, 4-Screw, 5-Second connecting piece, 51-Driver, 511-Dual-axis motor, 512-Connecting rod, 513-Threaded column, 52-Central sleeve, 53-Sliding sleeve, 54-Telescopic rod, 6-First slider, 7-Second slider, 8-Support seat, 81-Mounting column, 9-Rotating sleeve. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first," "second," and "third" are used in the description, they are for descriptive purposes and to distinguish technical features, and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will now be described based on its overall structure.

[0026] like Figures 1-5 As shown, a drilling device for releasing prestress includes two drilling rigs 1, with a first connecting member 2 connecting the two drilling rigs 1. A rotating sleeve 9 is fixedly connected to the middle of the first connecting member 2, and a threaded sleeve 3 is rotatably connected to the rotating sleeve 9. The inner side of the threaded sleeve 3 is provided with threads, and a vertically arranged screw 4 is threadedly connected to the threaded sleeve 3. The first connecting member 2 is perpendicular to the screw 4. A second connecting member 5 is fixedly connected to the lower end of the screw 4. The second connecting member 5 is perpendicular to the screw 4. A first slider 6 is connected to the end of the second connecting member 5. A second slider 7 is fixedly connected to the drilling rig 1 and slidably connected to the first slider 6. The second slider 7 slides vertically relative to the first slider 6. In this embodiment, when the threaded sleeve 3 rotates, it rotates relative to the screw 4 and moves up and down simultaneously. The rotating sleeve 9 rotates relative to the threaded sleeve 3. As the threaded sleeve 3 moves up and down, it drives the rotating sleeve 9 to move up and down, thereby changing the position of the rotating sleeve 9 relative to the screw 4. Furthermore, a rotating handle 31 is connected above the threaded sleeve 3 for rotating the threaded sleeve 3. During the up and down movement of the rotating sleeve 9, the two drilling machines 1 also move up and down simultaneously, and the second slider 7 moves relative to the first slider 6. The arrangement of the first slider 6 and the second slider 7 is to ensure that the two drilling machines 1 do not rotate relative to the screw 4 during the up and down movement. The rotating handle 31 provides a point of force for the threaded sleeve 3, and the threaded sleeve 3 is rotated by rotating the rotating handle 31.

[0027] Reference Figures 1-2 and Figure 5 Both the first connecting member 2 and the second connecting member 5 are telescopic, and the second connecting member 5 is equipped with a driving member 51 for driving the telescopic movement. In this embodiment, the first connecting member 2 and the second connecting member 5 are further defined as being telescopic, thereby changing the distance between the two drilling rigs 1. When it is necessary to change the distance between the two holes, the first connecting member 2 and the second connecting member 5 can be adjusted. When the length of one changes, the other changes accordingly.

[0028] Reference Figure 5The second connecting member 5 includes a central sleeve 52, with sliding sleeves 53 slidably connected to both ends of the central sleeve 52. The sliding sleeves 53 are located on the outer side of the central sleeve 52, and their outer ends are fixedly connected to the first slider 6. The driving member 51 is used to move the two sliding sleeves 53 simultaneously inward or outward, so that the distance between the two drilling rigs 1 and the center of the central sleeve 52 is equal. In this embodiment, the second connecting member 5 is further defined so that the sliding sleeves 53 can slide relative to the central sleeve 52. The driving member 51 is used to control the distance of movement of the sliding sleeves 53, eliminating the need for manual adjustment of the movement of the two sliding sleeves 53, and the driving member 51 can make the distance between the two drilling rigs and the central sleeve 52 equal.

[0029] Reference Figure 5 The driving component 51 includes a dual-axis motor 511 located within the central sleeve 52. Both output ends of the dual-axis motor 511 are connected to connecting rods 512, and the ends of the connecting rods 512 are connected to threaded posts 513. The threaded posts 513 are threadedly connected to the sliding sleeve 53. When the threaded posts 513 rotate, the sliding sleeve 53 moves horizontally relative to the threaded posts 513. In this embodiment, the driving component 51 is further defined such that the two output ends of the dual-axis motor 511 rotate at equal speeds, thereby driving the threaded posts 513 to rotate relative to the sliding sleeve 53. The distance between the threaded posts 513 and the dual-axis motor 511 remains constant. During the rotation of the threaded posts 513, the sliding sleeve 53 moves relative to the sleeve 52. The rotation of the dual-axis motor 511 is controlled by the controller. By controlling the start and stop of the dual-axis motor 511, the number of rotations of the threaded column 513 is controlled. The two output ends of the dual-axis motor 511 rotate at the same speed. The threads of the two threaded columns 513 are symmetrically arranged relative to the dual-axis motor 511. At the same time, the helical directions of the threads in the two sliding sleeves 53 are opposite. When the output ends of the dual-axis motor 511 rotate simultaneously, the two sliding sleeves 53 slide inward or outward simultaneously.

[0030] Reference Figures 4-5 A telescopic rod 54, which is fixedly connected to the middle sleeve 52, is fixedly connected to the outer side of the sliding sleeve 53. When the sliding sleeve 53 moves relative to the middle sleeve 52, the telescopic rod 54 extends or retracts. In this embodiment, a fixed seat is fixedly connected to both the telescopic rod 54 and the middle sleeve 52. The telescopic rod 54 is a horizontal rod, which is used to prevent the sliding sleeve 53 from rotating relative to the middle sleeve 52.

[0031] Reference Figure 3 A support base 8 is fixedly connected to the lower part of the middle sleeve 52, and a mounting column 81 connects the support base 8 and the middle sleeve 52. In this embodiment, the support base 8 is provided to leave a distance between the middle sleeve 52 and the ground, thereby avoiding direct contact between the middle sleeve 52 and the ground. At the same time, the support base 8 can improve the stability of the device. The mounting column 81 connects the middle sleeve 52 and the support base 8.

[0032] Reference Figure 4 The bottom of the support base 8 is flush with the lower side of the first slider 6. In this embodiment, the positional relationship between the support base 8 and the first slider 6 is further defined. The support base 8 is used to place on the ground, and the first slider 6 is flush with the bottom surface of the support base 8, which can improve the stability of the drilling equipment.

[0033] Reference Figure 2 The second slider 7 has a dovetail groove, and the first slider 6 is fixedly connected to a slider that mates with the dovetail groove of the second slider 7. In this embodiment, the connection relationship between the second slider 7 and the first slider 6 is further defined. The dovetail groove prevents the second slider 7 from sliding out relative to the first slider 6.

[0034] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made in accordance with the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A drilling device for releasing prestress, characterized in that, The system includes two drilling rigs (1), with a first connecting member (2) connecting the two drilling rigs (1). A rotating sleeve (9) is fixedly connected to the middle of the first connecting member (2), and a threaded sleeve (3) is rotatably connected to the rotating sleeve (9). The inner side of the threaded sleeve (3) is provided with threads, and the threaded sleeve (3) is threadedly connected to a vertically arranged screw (4). The first connecting member (2) is perpendicular to the screw (4), and a second connecting member (5) is fixedly connected to the lower end of the screw (4). The second connecting member (5) is perpendicular to the screw (4), and a first slider (6) is connected to the end of the second connecting member (5). The drilling rig (1) is fixedly connected to a second slider (7) that is slidably connected to the first slider (6), and the second slider (7) slides vertically relative to the first slider (6).

2. The drilling equipment for releasing prestress according to claim 1, characterized in that, Both the first connector (2) and the second connector (5) are telescopic, and the second connector (5) is equipped with a drive member (51) for driving telescopic movement.

3. The drilling equipment for releasing prestress according to claim 2, characterized in that, The second connecting member (5) includes a central sleeve (52), with sliding sleeves (53) slidably connected to both ends of the central sleeve (52). The sliding sleeves (53) are located on the outside of the central sleeve (52), and the outer end of the sliding sleeves (53) is fixedly connected to the first slider (6). The driving member (51) is used to move the two sliding sleeves (53) inward or outward at the same time so that the distance between the two drilling rigs (1) and the center of the central sleeve (52) is equal.

4. The drilling equipment for releasing prestress according to claim 3, characterized in that, The drive unit (51) includes a dual-axis motor (511) located in the middle sleeve (52). Both output ends of the dual-axis motor (511) are connected to connecting rods (512). The end of the connecting rod (512) is connected to a threaded post (513). The threaded post (513) is threadedly connected to the sliding sleeve (53). When the threaded post (513) rotates, the sliding sleeve (53) moves horizontally relative to the threaded post (513).

5. The drilling equipment for releasing prestress according to claim 4, characterized in that, The outer side of the sliding sleeve (53) is fixedly connected to a telescopic rod (54) which is fixedly connected to the middle sleeve (52). When the sliding sleeve (53) moves relative to the middle sleeve (52), the telescopic rod (54) extends and retracts.

6. The drilling equipment for releasing prestress according to claim 1, characterized in that, A rotating handle (31) is connected above the threaded sleeve (3) for rotating the threaded sleeve (3).

7. The drilling equipment for releasing prestress according to claim 5, characterized in that, The lower part of the middle sleeve (52) is fixedly connected to a support base (8), and an installation column (81) is connected between the support base (8) and the middle sleeve (52).

8. The drilling equipment for releasing prestress according to claim 7, characterized in that, The bottom of the support base (8) is flush with the lower side of the first slider (6).

9. The drilling equipment for releasing prestress according to claim 1, characterized in that, The second slider (7) has a dovetail groove, and the first slider (6) is fixedly connected to a slider that cooperates with the dovetail groove of the second slider (7).

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