A vertically adjustable straight bar

Abstract

The utility model discloses a straight rod of liftable regulation, including support outer tube, fixed inside fixed inner tube of support outer tube, the movable rod of movable insertion in fixed inner tube on, the locking bolt of screwing in the bottom of support outer tube outside for locking movable rod and the spring of setting between movable rod's bottom with fixed inner tube bottom. The utility model discloses fixed inner tube is fixed in the inside of support outer tube through reinforcing part, and movable rod is inserted in fixed inner tube, and the spring of setting in fixed inner tube provides elastic force for movable rod, improves movable rod lifting stability, effectively reduces operator's operating strength, and effectively improves the convenience of lifting operation.

Description

Technical Field

[0001] This utility model relates to the field of industrial fan technology, and more specifically to a vertically adjustable rod. Background Technology

[0002] An industrial fan is a high-power, high-speed, and high-airflow mechanical device. It uses the high-speed rotation of a motor to drive the fan blades to rotate at high speed, thereby outputting a large airflow. Industrial fans are mainly used in ventilation, cooling, and air exchange. Spray industrial fans are based on industrial fans with the addition of sprayers, water tanks, and other devices. Spray industrial fans are used in dust suppression, cooling, and other technical fields. Currently, common spray industrial fans mainly achieve their lifting function through a telescopic tube and a vertical tube. One end of the telescopic tube is fixed to the industrial fan, and the other end is inserted into the vertical tube. The telescopic tube is locked by a nut handle on the vertical tube. This locking method has the following problem: a considerable amount of force is required to lift the industrial fan to achieve lifting and lowering. Utility Model Content

[0003] The main purpose of this utility model is to solve the above-mentioned problems and provide a straight rod that can be raised and lowered.

[0004] The technical solution adopted in this utility model is as follows: A height-adjustable straight rod includes a supporting outer tube, a fixed inner tube fixed inside the supporting outer tube, a movable rod movably inserted into the fixed inner tube, a locking bolt screwed to the outside of the supporting outer tube for locking the movable rod, and a spring disposed between the bottom of the movable rod and the bottom of the fixed inner tube.

[0005] The fixed inner tube is suspended in the middle of the supporting outer tube by a reinforcing member welded to the opening of the supporting outer tube.

[0006] The reinforcing member includes a closed tube with one end open and a filling block. The closed tube is sleeved at the opening of the supporting outer tube, and the filling block is located on the inner wall at the opening of the supporting outer tube.

[0007] The height-adjustable rod also includes two hand handles located on the outside of the closed tube and screwed to the closed tube and the filling block.

[0008] The beneficial effects of this utility model are as follows: The fixed inner tube of this utility model is fixed inside the supporting outer tube by a reinforcing member. The movable rod is inserted into the fixed inner tube. The movable rod is provided with elastic force by a spring set in the fixed inner tube, which improves the stability of the movable rod's lifting and lowering, effectively reduces the operator's operating force, and effectively improves the convenience of lifting and lowering operations. Attached Figure Description

[0009] Fig. 1This is a three-dimensional schematic diagram of the present invention.

[0010] Fig. 2 This is a cross-sectional structural diagram of the present invention.

[0011] Fig. 3 This is a schematic diagram of the structure of the locking bolt and the movable rod of this utility model. Detailed Implementation

[0012] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0013] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0014] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0015] Please refer to Figs. 1 to 3 This invention provides an adjustable rod, comprising a supporting outer tube 10, a fixed inner tube 20 fixed inside the supporting outer tube 10, a movable rod 30 movably inserted into the fixed inner tube 20, a locking bolt 40 screwed to the outside of the supporting outer tube 10 for locking the movable rod 30, and a spring 50 disposed between the bottom of the movable rod 30 and the bottom of the fixed inner tube 20. In practical use, the movable rod 30 supports an industrial fan or a regular fan. This invention is mainly used for industrial fans. After an industrial fan is installed on the movable rod 30, the elastic force provided by the spring improves the stability of the movable rod's lifting (i.e., the length by which the movable rod slides into the fixed inner tube) and reduces the operator's effort. After the movable rod 30 reaches the desired position, the locking bolt 40 is rotated to lock the movable rod 30 inside the fixed inner tube 20.

[0016] In this embodiment, the fixed inner tube 20 is suspended in the middle of the supporting outer tube 10 by a reinforcing member 60 welded to the opening of the supporting outer tube 10. The bottom of the fixed inner tube 20 can be fixed to or kept at a certain distance from the bottom of the supporting outer tube 10.

[0017] In this embodiment, the reinforcing member 60 includes a closed tube 61 with one end open and a filling block 62. The closed tube 61 is sleeved on the opening of the supporting outer tube 10, and the filling block 62 is located on the inner wall of the tube opening of the supporting outer tube 10. The cooperation between the filling block and the closed tube can increase the stability of the movable rod after supporting the industrial fan and prevent the movable rod from shaking.

[0018] In this embodiment, the height-adjustable rod also includes two hand handles 70 located on the outside of the closed tube 61 and screwed to the closed tube 61 and the filling block 62, allowing the operator to perform related operations with both hands.

[0019] The present invention aims to achieve the following: the fixed inner tube is fixed inside the supporting outer tube by a reinforcing member, the movable rod is inserted into the fixed inner tube, and the movable rod is provided with elastic force by a spring set in the fixed inner tube, thereby improving the lifting stability of the movable rod, effectively reducing the operator's operating force, and effectively improving the convenience of lifting operation.

[0020] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A height-adjustable straight rod, characterized in that: It includes a supporting outer tube, a fixed inner tube fixed inside the supporting outer tube, a movable rod movably inserted into the fixed inner tube, a locking bolt screwed to the outside of the supporting outer tube for locking the movable rod, and a spring disposed between the bottom of the movable rod and the bottom of the fixed inner tube.

2. The adjustable straight rod as described in claim 1, characterized in that, The fixed inner tube is suspended in the middle of the supporting outer tube by a reinforcing member welded to the opening of the supporting outer tube.

3. The adjustable straight rod as described in claim 2, characterized in that, The reinforcing member includes a closed tube with one end open and a filling block. The closed tube is sleeved at the opening of the supporting outer tube, and the filling block is located on the inner wall at the opening of the supporting outer tube.

4. The adjustable straight rod as described in claim 3, characterized in that, The height-adjustable rod also includes two hand handles located on the outside of the closed tube and screwed to the closed tube and the filling block.

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