Bidirectional self-locking type telescopic drilling rod

Abstract

The utility model relates to a bi-directional self-locking type telescopic drilling rod which comprises a rotating cylinder and a cylinder body, the rotating cylinder and the cylinder body are hollow, the two sides of the interior of the rotating cylinder are connected with the cylinder body through bearings, an inner nut is arranged in the other end of the cylinder body, the inner surface of the inner nut is in threaded connection with a lead screw, a six-edge groove is formed in the lead screw, and the six-edge groove is in threaded connection with the inner surface of the inner nut. A hexagonal rod is slidably connected into the hexagonal groove, the end, extending out of the hexagonal groove, of the hexagonal rod is connected with the rotary drum through a connecting plate, and a conical head is arranged at one end of the lead screw. Length adjustment of the telescopic rod is achieved through cooperation of the hexagonal rod and the lead screw provided with the hexagonal groove, meanwhile, the conical heads are arranged at the two ends of the telescopic rod, drilling of the conical heads into a wall is completed while telescopic adjustment is conducted, the simple drilling telescopic rod is provided, complexity caused by extra drilling is avoided, and the drilling efficiency is improved. And the stability and the bearing capacity of the telescopic rod are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of telescopic rods, in particular to a bidirectional self-locking telescopic drilling rod. Background Art

[0002] Existing telescopic rods are basically punch-free, with retractable inner and outer tubes. The rod length is extended by the retractable inner tube to adapt to various sizes of usage scenarios. The pressure on the two walls is increased by the adjuster, and the telescopic rod is supported between the two walls with the base. Although this type of punch-free telescopic rod is easy to install, its load-bearing capacity is limited. When the load-bearing capacity is greater than the static friction force generated by the preload at both ends of the telescopic rod, the rod will slip, especially when supported on a relatively smooth wall, it is more likely to slide and become unstable, and the applicable scenarios are limited.

[0003] Therefore, the present application proposes a bidirectional self-locking telescopic drilling rod to improve the above-mentioned problem. Utility Model Content

[0004] The utility model provides a bidirectional self-locking telescopic drilling rod.

[0005] The specific technical scheme of the utility model is: a two-way self-locking telescopic drilling rod, comprising a rotating cylinder and a cylinder body, the rotating cylinder and the cylinder body are both hollow, the two sides of the rotating cylinder are connected to the cylinder body through bearings, the other end of the cylinder body is provided with an internal nut, the inner surface of the internal nut is threadedly connected with a screw rod, the screw rod is provided with a hexagonal groove, the hexagonal groove is slidably connected with a hexagonal rod, the end of the hexagonal rod extending out of the hexagonal groove is connected to the rotating cylinder through a connecting plate, and one end of the screw rod is provided with a cone head.

[0006] Furthermore, preferably, a stopper is provided between the cone head and the screw rod.

[0007] The beneficial effect of the utility model is that the utility model realizes the length adjustment of the telescopic rod by utilizing the cooperation between the hexagonal rod and the screw rod with the hexagonal groove, and at the same time, cone heads are arranged at both ends of the telescopic rod, and the cone heads are drilled into the wall surface while adjusting the telescopic length, thereby providing a simplified drilling telescopic rod, which not only avoids the tediousness caused by additional drilling, but also improves the stability and bearing capacity of the telescopic rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a schematic diagram of the internal structure of a two-way self-locking telescopic drilling rod of the utility model;

[0009] Figure 2 This is a hexagonal groove structure diagram of the utility model;

[0010] Figure 3 for Figure 1 A schematic diagram of the disassembled structure of the rotary drum of the utility model;

[0011] In the figure: 1-cone head, 2-stopper, 3-cylinder, 4-screw, 5-hexagonal groove, 6-hexagonal rod, 7-bearing, 8-connecting plate, 9-rotating cylinder, 10-inner nut. DETAILED DESCRIPTION

[0012] In order to make the technical problems and technical solutions solved by the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0013] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, 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 should not be understood as a limitation on the present invention.

[0014] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0015] like Figures 1 to 3 As shown, a bidirectional self-locking telescopic drilling rod comprises a rotating drum 9 and a cylinder body 3. Both the rotating drum 9 and the cylinder body 3 are hollow. The rotating drum 9 is connected to the cylinder body 3 on both sides through bearings 7. The other end of the cylinder body 3 is provided with an inner nut 10. The inner surface of the inner nut 10 is threadedly connected with a screw 4. The screw 4 is provided with a hexagonal groove 5. The hexagonal groove 5 is slidably connected with a hexagonal rod 6. One end of the hexagonal rod 6 extending out of the hexagonal groove 5 is connected to the rotating drum 9 through a connecting plate 8. A cone head 1 is provided at one end of the screw 4. A stopper 2 is also provided between the cone head 1 and the screw 4. Among them, the bearing 7 and the connecting plate 8 are connected inside the rotating drum 9; the screw 4 on the left is left-handed, and the screw 4 on the right is right-handed.

[0016] When in use, hold the cylinder 3 on both sides with both hands and rotate the rotating cylinder 9 with the thumbs. At this time, the rotating cylinder 9 drives the hexagonal rod 6 to rotate through the connecting plate 8. Due to the restriction of the hexagonal groove 5 on the hexagonal rod 6, the hexagonal rod 6 will not rotate in the hexagonal groove 5, but transmit the rotational force to the screw rod 4, thereby driving the screw rods 4 on both sides to rotate in the inner nut 10 and extend to both sides. At the same time, the hexagonal rod 6 will slide in the hexagonal groove 5 without affecting the extension of the screw rod 4. When the cone head 1 contacts the wall, continue to rotate the rotating cylinder 9, and the transmitted rotational force will drive the cone heads 1 on both sides to screw into the wall, and the telescopic rod is firmly drilled and connected between the two walls, which is not easy to slide down.

[0017] The present invention is described in detail above through specific and preferred embodiments, but those skilled in the art should understand that the present invention is not limited to the embodiments described above, and any modifications, equivalent substitutions, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A two-way self-locking telescopic drilling rod, characterized in that: The invention comprises a rotating drum (9) and a cylinder body (3), wherein the rotating drum (9) and the cylinder body (3) are both hollow, and the rotating drum (9) is connected to the cylinder body (3) via bearings (7) on both sides thereof, and an inner nut (10) is provided inside the other end of the cylinder body (3), and a screw rod (4) is threadedly connected to the inner surface of the inner nut (10), and a hexagonal groove (5) is provided inside the screw rod (4), and a hexagonal rod (6) is slidably connected inside the hexagonal groove (5), and one end of the hexagonal rod (6) extending out of the hexagonal groove (5) is connected to the rotating drum (9) via a connecting plate (8), and a cone head (1) is provided at one end of the screw rod (4).

2. A two-way self-locking telescopic drilling rod according to claim 1, characterized in that: A stopper (2) is also provided between the cone head (1) and the screw rod (4).

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