Rotary excavating drill bit connecting square box

Abstract

The utility model discloses a rotary excavating drill bit connecting square box which comprises a box body, a rotary excavating drill bit is fixedly connected to the bottom end of the box body, a set of first pin holes are formed in the inner wall of the box body, and base plates are fixedly connected to the front face and the back face of the box body. The outer surface of each base plate is provided with a set of first through holes, and the first through holes are aligned with the first pin holes. According to the device, through the arrangement of the box body, the reinforcing frame, the cushion plate, the cushion disc and the stabilizing block, the box body can be externally reinforced, the deformation phenomenon of the box body is effectively prevented, stable use of the connecting square box is facilitated, and through the arrangement of a pin shaft rod, a fixing ring, a supporting spring, a T-shaped positioning plug and a limiting rod, the stability of the connecting square box is improved. The supporting spring can be used for driving the T-shaped positioning plug to move and stretch into the fixing ring, limiting and positioning of the pin shaft rod are achieved, the pin shaft rod is prevented from falling off, and stable connection and use of the square connecting box and the connector are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary drilling machines, in particular to a rotary drilling drill bit connection box. Background Art

[0002] The rotary drilling bit connection box is a component that connects the rotary drilling bit to the rotary drilling rig drill rod. It is usually welded from steel into a box that matches the rotary drilling rig drill rod.

[0003] Among them, the utility model patent with announcement number CN212376604U discloses a rotary drilling bit connecting square box, but the above patent still has certain shortcomings when used. When the pin is inserted into the connecting square box and the rotary drilling machine connecting head, the pin is prone to fall off after long-term work. In addition, the overall stability of the connecting square box is poor and it is prone to deformation, which is not convenient for the stable use of the connecting square box. Therefore, we propose a rotary drilling bit connecting square box to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a rotary drilling drill bit connection box to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A rotary drilling bit connection box, comprising a box body, a rotary drilling bit fixedly connected to the bottom end of the box body, a group of first pin holes opened on the inner wall of the box body, a backing plate fixedly connected to the front and back sides of the box body, a group of first through holes opened on the outer surface of each of the backing plates, the first through holes and the first pin holes are aligned, the inner wall of the box body is provided with two second pin holes, the left and right side surfaces of the box body are fixedly connected with a backing plate, the outer surface of each of the backing plates is provided with a second through hole, the second through hole and the second pin hole are aligned, and the two first through holes are aligned. A pin shaft rod is jointly sleeved on the inner wall of a through hole and the inner walls of the two first pin holes, the rear end of the pin shaft rod is fixedly connected to a fixing ring, the upper surface of the rotary drilling bit is fixedly connected to a supporting spring, the top end of the supporting spring is fixedly connected to a T-shaped positioning plug, the upper surface of the rotary drilling bit is fixedly connected to a limiting rod, the top end of the limiting rod passes through the supporting spring and extends to the interior of the T-shaped positioning plug, the top outer surface of the box body is fixedly connected to a reinforcement frame, the outer surface of the box body is fixedly connected to two groups of stabilizing blocks, and the bottom end of each of the stabilizing blocks is fixedly connected to the upper surface of the rotary drilling bit.

[0007] In a further embodiment, both the left and right side surfaces of the box body are fixedly connected with hanging rings, and the hanging rings are made of metal.

[0008] In a further embodiment, the left and right sides of each pad are fixedly connected with reinforcement blocks, and the sides of the two groups of reinforcement blocks close to each other are fixedly connected to the front and back sides of the box body respectively.

[0009] In a further embodiment, a model label is provided on the left side of the box body, and the model label is located in the lower middle part of the box body.

[0010] In a further embodiment, a holding rod is fixedly connected to the back of the T-shaped positioning plug, and an anti-slip sleeve is fixedly connected to the outer surface of the holding rod.

[0011] In a further embodiment, a guide frame is fixedly connected to the inner wall of the reinforcement frame.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The device can reinforce the box body externally through the provided box body, reinforcement frame, pad, pad and stabilizing block, effectively preventing the box body from deformation, facilitating the stable use of the connected square box, and through the provided pin rod, fixing ring, support spring, T-shaped positioning plug and limit rod, the support spring can be used to drive the T-shaped positioning plug to move and extend into the inside of the fixing ring, thereby achieving the limited positioning of the pin rod and avoiding the pin rod from falling off, facilitating the stable connection between the square box and the connecting head. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the rotary drilling bit connected to the square box.

[0015] Figure 2 This is the rear view of the box body in the square box with the rotary drilling bit connected.

[0016] Figure 3 This is a sectional view of the side view of the box body in the square box where the rotary drilling bit is connected.

[0017] Figure 4 This is a top view of the box body in the square box where the rotary drilling bit is connected.

[0018] In the figure: 1. Box body; 2. Rotary drill bit; 3. Stabilizing block; 4. First through hole; 5. Pad; 6. Pin rod; 7. Reinforcement block; 8. Reinforcement frame; 9. Guide frame; 10. Lifting ring; 11. Pad; 12. Second through hole; 13. Fixing ring; 14. T-shaped positioning plug; 15. Holding rod; 16. Anti-slip sleeve; 17. Support spring; 18. Limit rod; 19. Model mark; 20. First pin hole; 21. Second pin hole. DETAILED DESCRIPTION

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-4In the utility model, a rotary drilling bit connection box includes a box body 1, a rotary drilling bit 2 is fixedly connected to the bottom end of the box body 1, a group of first pin holes 20 are opened on the inner wall of the box body 1, and the front and back sides of the box body 1 are fixedly connected with a pad 5. The outer surface of each pad 5 is provided with a group of first through holes 4, and the first through holes 4 are aligned with the first pin holes 20. The inner wall of the box body 1 is provided with two second pin holes 21, and the left and right sides of the box body 1 are fixedly connected with pads 11. The outer surface of each pad 11 is provided with a second through hole 12, and the second through hole 12 is aligned with the second pin hole 21. The inner wall of the first through hole 4 and the inner wall of the two first pin holes 20 are jointly sleeved with a pin shaft rod 6, the rear end of the pin shaft rod 6 is fixedly connected to a fixing ring 13, the upper surface of the rotary drilling bit 2 is fixedly connected to a support spring 17, the top of the support spring 17 is fixedly connected to a T-shaped positioning plug 14, the upper surface of the rotary drilling bit 2 is fixedly connected to a limiting rod 18, the top of the limiting rod 18 passes through the support spring 17 and extends to the inside of the T-shaped positioning plug 14, the top outer surface of the box body 1 is fixedly connected to a reinforcement frame 8, the outer surface of the box body 1 is fixedly connected to two groups of stabilizing blocks 3, and the bottom end of each stabilizing block 3 is fixedly connected to the upper surface of the rotary drilling bit 2.

[0023] The left and right sides of the box body 1 are fixedly connected with lifting rings 10. The lifting rings 10 are made of metal and can easily lift the box body 1, which is convenient for the installation operation of the box body 1. The left and right sides of each pad 5 are fixedly connected with reinforcement blocks 7. The sides of the two groups of reinforcement blocks 7 that are close to each other are fixedly connected to the front and back sides of the box body 1 respectively, which can reinforce the pad 5 and effectively increase the stability of the box body 1.

[0024] A model mark 19 is provided on the left side of the box body 1. The model mark 19 is located in the lower middle part of the box body 1, which can explain the model of this connecting square box and is convenient for the staff to use. The back of the T-shaped positioning plug 14 is fixedly connected with a holding rod 15, and the outer surface of the holding rod 15 is fixedly connected with an anti-slip sleeve 16, which can enable the installer to easily press the T-shaped positioning plug 14 to move it, thereby facilitating the pin positioning of the pin shaft rod 6. The inner wall of the reinforcement frame 8 is fixedly connected with a guide frame 9, which is convenient for the insertion and installation of the rotary drilling rig connector.

[0025] The working principle of this utility model is:

[0026] When in use, first weld the box body 1 and the rotary drilling bit 2 to fix them, and weld the stabilizing block 3 to increase the stability of the box body 1 during use. Then use the lifting equipment to hang on the lifting ring 10 to lift the box body 1, and then insert the connecting head into the interior of the box body 1, and insert the pin shaft rod 6 into the first pin hole 20, the first through hole 4 and the interior of the connecting head to realize the connection and installation of the connecting head and the box body 1, and use the elasticity of the support spring 17 to drive the T-shaped positioning plug 14 to move upward and insert it into the interior of the fixing ring 13 to realize the positioning of the pin shaft rod 6, thereby realizing the stable use of the box body 1.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0028] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A rotary drilling bit connection box, characterized by: The invention comprises a box body (1), the bottom end of the box body (1) is fixedly connected to a rotary drilling bit (2), the inner wall of the box body (1) is provided with a group of first pin holes (20), the front and back sides of the box body (1) are fixedly connected to a pad (5), the outer surface of each pad (5) is provided with a group of first through holes (4), the first through holes (4) are aligned with the first pin holes (20), the inner wall of the box body (1) is provided with two second pin holes (21), the left and right side surfaces of the box body (1) are fixedly connected to a pad (11), the outer surface of each pad (11) is provided with a second through hole (12), the second through hole (12) is aligned with the second pin hole (21), and the two first through holes (4) are aligned with the second pin hole (21). The inner wall of the box body (1) and the inner walls of the two first pin holes (20) are jointly sleeved with a pin shaft rod (6), the rear end of the pin shaft rod (6) is fixedly connected to a fixing ring (13), the upper surface of the rotary drilling bit (2) is fixedly connected to a support spring (17), the top end of the support spring (17) is fixedly connected to a T-shaped positioning plug (14), the upper surface of the rotary drilling bit (2) is fixedly connected to a limiting rod (18), the top end of the limiting rod (18) passes through the support spring (17) and extends to the inside of the T-shaped positioning plug (14), the top outer surface of the box body (1) is fixedly connected to a reinforcement frame (8), the outer surface of the box body (1) is fixedly connected to two groups of stabilizing blocks (3), the bottom end of each of the stabilizing blocks (3) is fixedly connected to the upper surface of the rotary drilling bit (2).

2. The rotary drilling bit connection box according to claim 1, characterized in that: The left and right side surfaces of the box body (1) are both fixedly connected with hanging rings (10), and the hanging rings (10) are made of metal.

3. The rotary drilling drill bit connection box according to claim 1, characterized in that: The left and right sides of each pad (5) are fixedly connected to reinforcement blocks (7), and the sides of the two groups of reinforcement blocks (7) close to each other are fixedly connected to the front side of the box body (1) and the back side of the box body (1) respectively.

4. The rotary drilling drill bit connection box according to claim 1, characterized in that: A model mark (19) is provided on the left side of the box body (1), and the model mark (19) is located in the middle and lower part of the box body (1).

5. The rotary drilling drill bit connection box according to claim 1, characterized in that: The back of the T-shaped positioning plug (14) is fixedly connected to a holding rod (15), and the outer surface of the holding rod (15) is fixedly connected to an anti-slip sleeve (16).

6. The rotary drilling bit connection box according to claim 1, characterized in that: The inner wall of the reinforcement frame (8) is fixedly connected to a guide frame (9).

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