Lifting vertical rod capable of controlling height

Abstract

The utility model provides a height-controllable lifting vertical rod which comprises a connecting rod and a rotating handle, one end of the connecting rod is connected with a supporting rod in an inserted mode, and the other end of the connecting rod is connected with an adaptive pipe in an inserted mode. The end, away from the connecting rod, of the adaptive pipe is connected with the other supporting rod through a rotating handle, and a lifting mechanism is arranged between the supporting rod and the adaptive pipe. The lifting mechanism comprises a double-thread lead screw, and a rotating handle is fixedly arranged in the middle of the double-thread lead screw in a sleeving mode. Threads at the two ends of the double-thread lead screw are opposite in thread direction, one end of the double-thread lead screw is in threaded connection with the adapter pipe, and the other end of the double-thread lead screw is in threaded connection with the supporting rod closest to the rotating handle. The ends, away from each other, of the two supporting rods are each provided with a supporting mechanism. Due to the arrangement of the double-thread lead screw, the rotating handle is rotated. The two supporting rods can move away from each other in a stepless adjustment mode, and therefore the lifting vertical rod is controlled to reach the most stable state.

Description

Technical Field

[0001] The utility model belongs to the technical field of lifting rods, and in particular relates to a height-controllable lifting vertical rod. Background Art

[0002] At the construction site, we often use line laying to control the width of the separation seams between floor tiles and wall tiles, and to control the size of the gaps between bricks within the specification requirements when laying floor tiles and wall tiles. The same is true when laying aerated blocks. When controlling the horizontal and vertical alignment of aerated blocks, we usually choose line laying control, which is not accurate enough and takes a lot of time. If an infrared level is used, the size of their separation seams and verticality can be controlled more accurately, but the infrared level cannot be used when it reaches a certain operating height. For this reason, the infrared level can be installed on a lifting pole.

[0003] The existing patent with publication number CN112283524A discloses an auxiliary rod for a level instrument for construction with high stability after installation, including a support rod, a movable column slidably installed inside the support rod, a fixed rod installed inside the lower end of the movable column, and a lower foot pad arranged at the bottom of the fixed rod; a reset spring is sleeved on the outer side of the top of the fixed rod, a connecting shaft is rotatably arranged on the inner wall on the right side below the support rod, a gear is sleeved on the outer surface of the connecting shaft, and the gear is connected to one side of the movable column by meshing; a ratchet is fixedly arranged on the connecting shaft, a handle is rotatably sleeved on the connecting shaft, an auxiliary block is fixedly arranged on the inner side of the handle, and a pawl is rotatably arranged on the side of the auxiliary block close to the ratchet; a torsion spring is fixedly connected to the connection between the pawl and the auxiliary block.

[0004] The above scheme fixes the level assist instrument by first pulling the flip handle, driving the ratchet to rotate through the pawl, the ratchet driving the gear to rotate through the connecting shaft, and the gear rotation driving the movable column to slide downward. Then flip the handle in the opposite direction, and use the assistance of the torsion spring to complete the reset of the handle without rotating the ratchet. By completing the above operation multiple times, the movable column is adjusted downward, and the sliding of the movable column will squeeze the reset spring, and the reset spring will exert pressure on the lower foot pad through the fixed rod to complete the fixation of the level assist instrument. Since the gear is connected to one side of the movable column in a meshing manner, the gear drives the movable column to slide up and down in a step-by-step manner. Therefore, the minimum moving unit of the movable column driven by the gear to slide up and down each time is fixed. When the level assist instrument is in the most stable state and the movable column has not reached the minimum moving unit, the limit relationship between the gear and the movable column is not stable, causing the movable column to retreat to the previous minimum moving unit. The level assist instrument cannot reach the most stable state, and has certain limitations as a whole. Utility Model Content

[0005] In order to solve the problems existing in the background technology, the utility model provides a height-controllable lifting pole.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A controllable height lifting vertical pole comprises a connecting rod and a rotating handle, wherein one end of the connecting rod is plugged into a support rod, and the other end is plugged into an adapter tube; one end of the adapter tube away from the connecting rod is connected to another support rod through the rotating handle, and a lifting mechanism is provided between the support rod and the adapter tube; the lifting mechanism comprises a double-threaded screw, and the rotating handle is fixedly sleeved in the middle of the double-threaded screw; the thread directions of the threads at both ends of the double-threaded screw are opposite, one end of the double-threaded screw is threadedly connected to the adapter tube, and the other end is threadedly connected to the support rod closest to the rotating handle; the supporting mechanisms are installed at the ends of the two support rods away from each other.

[0008] Furthermore, the supporting mechanism includes a sliding rod, one end of which is slidably arranged in the supporting rod, the other end of the sliding rod extends to the outside of the supporting rod and is fixedly provided with a rubber block, and a rack is fixedly provided on the side walls around the end of the sliding rod located in the supporting rod; a fixed block is fixedly arranged in the supporting rod, and a spring is arranged between the fixed block and the sliding rod, one end of the spring is fixedly connected to an end of the fixed block away from the rotating handle, and the other end is fixedly connected to an end of the sliding rod close to the rotating handle; four grooves are provided on the supporting rod, and the four grooves are distributed in a circular array about the central axis of the supporting rod; an incomplete gear and a gear are rotatably arranged in each of the grooves, and a side rod is fixedly arranged on the part of the incomplete gear without teeth, and the incomplete gear and the rack are both meshed with the gear.

[0009] Furthermore, positioning holes are provided on both sides of the end of each side rod away from the gear, and positioning beads are installed on the inner walls on both sides of each groove, and the positioning beads are limitedly matched with the positioning holes.

[0010] This application has the following beneficial effects:

[0011] 1. Due to the setting of the double-threaded screw, by turning the rotating handle, the two support rods can move away from each other through stepless adjustment, thereby controlling the lifting pole to reach the most stable state.

[0012] 2. By turning the rotating handle, the two support rods will move away from each other. In the process of the two support rods moving away from each other, the support mechanism will automatically fix the lifting pole, greatly reducing the overall fixing time of the lifting pole. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present invention will become easy to understand. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This utility model Figure 1 A local enlarged schematic diagram of the middle A;

[0016] Figure 3 This is a schematic diagram of the connecting rod structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the double-threaded lead screw of the utility model;

[0018] Figure 5 This utility model Figure 4 A partial enlarged schematic diagram of point B in the middle;

[0019] Figure 6 This utility model Figure 5 A partial enlarged schematic diagram of point C in the middle.

[0020] Description of reference numerals:

[0021] 1. Support rod; 2. Connecting rod; 3. Sliding rod; 4. Rubber block; 5. Groove; 6. Gear; 7. Incomplete gear; 8. Side rod; 9. Double-threaded screw; 10. Rotating handle; 11. Adapter tube; 12. Insert rod; 13. Positioning hole; 14. Spring; 15. Fixed block; 16. Rack. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-Figure 6 As shown, the technical solution adopted by the utility model is as follows: Figure 1-Figure 6 As shown, the technical solution adopted by the utility model is as follows: a height-controllable lifting pole comprises a connecting rod 2 and a rotating handle 10.

[0024] Both ends of the connecting rod 2 are fixed with an insertion rod 12, one end of the connecting rod 2 is plugged with a support rod 1, and the other end is plugged with an adapter tube 11. The end of the adapter tube 11 away from the connecting rod 2 is movably connected to another support rod 1 through a rotating handle 10, and a lifting mechanism is provided between the support rod 1 and the adapter tube 11.

[0025] The lifting mechanism includes a double-threaded screw 9, and a rotating handle 10 is fixedly sleeved in the middle of the double-threaded screw 9. The threads at both ends of the double-threaded screw 9 have opposite thread directions. One end of the double-threaded screw 9 is threadedly connected to the adapter tube 11, and the other end is threadedly connected to the support rod 1 that is adapted to the double-threaded screw 9. An infrared level meter (not shown in the figure) is installed on the support rod 1 that is not adapted to the double-threaded screw 9. On the premise that the support rod 1 and the adapter tube 11 do not rotate, the distance between the two support rods 1 is adjusted by rotating the rotating handle 10, thereby adjusting the position of the infrared level meter.

[0026] Support mechanisms are installed at the ends of the two support rods 1 that are away from each other.

[0027] The support mechanism includes a slide bar 3, a slide groove is provided in the support bar 1, one end of the slide bar 3 is slidably arranged in the slide groove, and the other end of the slide bar 3 extends to the outside of the slide groove and is fixedly provided with a rubber block 4. In addition, racks 16 are fixedly provided on the side walls around the end of the slide bar 3 located in the slide groove. A fixed block 15 is fixedly provided in the slide groove, and a spring 14 is provided between the fixed block 15 and the slide bar 3, one end of the spring 14 is fixedly connected to an end of the fixed block 15 away from the rotating handle 10, and the other end is fixedly connected to an end of the slide bar 3 close to the rotating handle 10.

[0028] Four grooves 5 are provided on the support rod 1. The four grooves 5 are arranged in a circular array about the central axis of the support rod 1. The four grooves 5 are all connected to the slide groove. An incomplete gear 7 and a gear 6 are rotatably arranged in each groove 5. The gear 6 is located between the incomplete gear 7 and the rack 16. The incomplete gear 7 and the rack 16 are meshed with the gear 6. A side rod 8 is fixedly arranged on the part of the incomplete gear 7 without teeth. The end of the side rod 8 connected to the incomplete gear 7 is rotatably arranged in the groove 5.

[0029] The rack 16 drives the incomplete gear 7 to rotate through the gear 6, thereby driving the side rod 8 to rotate, thereby increasing the contact area between the controllable height lifting pole and the outside world when supporting, and improving the stability of the controllable height lifting pole when supporting.

[0030] Positioning holes 13 are provided on both sides of the end of each side rod 8 away from the incomplete gear 7, and positioning beads are installed on the inner walls of both sides of each groove 5, and the positioning beads are limitedly matched with the positioning holes 13. The positioning beads are used to limit the position of the side rod 8 to prevent the end of the side rod 8 away from the incomplete gear 7 from being separated from the support rod 1 when the controllable height lifting pole is not in use.

[0031] Working principle: When in use, select a connecting rod 2 of appropriate length according to the required height. Insert the insertion rod 12 at the upper end of the connecting rod 2 into the supporting rod 1, and insert the insertion rod 12 at the lower end of the connecting rod 2 into the adapter tube 11, and the lower end of the adapter tube 11 is connected to another supporting rod 1 through a double-threaded lead screw 9. The controllable height lifting pole can be vertically placed at the location where the infrared level meter needs to be set up.

[0032] The rubber block 4 at the lower end is placed vertically on the ground, and the rubber block 4 at the upper end is in contact with the roof. The adapter tube 11 and the support rod 1 under the rotating handle 10 are manually controlled to ensure that when the rotating handle 10 is rotated, the adapter tube 11 and the support rod 1 under the rotating handle 10 cannot rotate but can slide up and down.

[0033] When the rotating handle 10 is turned, the rotating handle 10 will not move at the beginning of the rotation. Under the action of the double-threaded lead screw 9, the support rod 1 below the rotating handle 10 will move downward, and the adapter tube 11 above the rotating handle 10 will push the support rod 1 above the rotating handle 10 to move upward, thereby adjusting the height of the infrared level meter.

[0034] During the movement of the two support rods 1, the rubber blocks 4 at the ends of the two slide bars 3 will push the slide bars 3 to slide in the slide groove toward the inside of the support rods 1, thereby squeezing the springs 14. Due to gravity, as the rotating handle 10 continues to rotate, the support rod 1 below the rotating handle 10 will first reach a stable state and stop moving downward. Then the rotating handle 10 will move upward, so while the rotating handle 10 moves upward, it also pushes the support rod 1 above the rotating handle 10 to move upward through the adapter tube 11 until the support rod 1 above the rotating handle 10 is stable.

[0035] At the same time, during the sliding process of the slide bar 3, the rack 16 on the slide bar 3 will push the corresponding gear 6 to rotate, and the gear 6 will drive the incomplete gear 7 to rotate, so that the side rod 8 breaks free from the positioning bead and rotates in the groove 5. As the degree of extrusion continues to increase, the rotation angle of the side rod 8 becomes larger and larger, and the side rod 8 will expand outward until the upper and lower side rods 8 contact the roof and the ground respectively to support the support rod 1.

[0036] The joint support of the side rod 8 and the rubber block 4 improves the stability of the controllable height lifting pole support.

Claims

1. A height-controllable lifting pole, characterized in that: The invention comprises a connecting rod (2) and a rotating handle (10), wherein one end of the connecting rod (2) is plugged into a supporting rod (1), and the other end is plugged into an adaptor tube (11); the end of the adaptor tube (11) away from the connecting rod (2) is connected to another supporting rod (1) through the rotating handle (10), and a lifting mechanism is provided between the supporting rod (1) and the adaptor tube (11); the lifting mechanism comprises a double-threaded lead screw (9), and the rotating handle (10) is fixedly sleeved in the middle of the double-threaded lead screw (9); the thread directions of the threads at both ends of the double-threaded lead screw (9) are opposite, one end of the double-threaded lead screw (9) is threadedly connected to the adaptor tube (11), and the other end is threadedly connected to the supporting rod (1) closest to the rotating handle (10); the supporting mechanism is installed at the ends of the two supporting rods (1) away from each other.

2. The height-controllable lifting pole according to claim 1, characterized in that: The support mechanism comprises a slide bar (3), one end of the slide bar (3) is slidably arranged in the support bar (1), the other end of the slide bar (3) extends to the outside of the support bar (1) and is fixedly provided with a rubber block (4), and a rack (16) is fixedly provided on the side walls around the end of the slide bar (3) located in the support bar (1); a fixed block (15) is fixedly provided in the support bar (1), a spring (14) is provided between the fixed block (15) and the slide bar (3), and one end of the spring (14) and the fixed block (15) are away from the rotating handle. One end of the support rod (10) is fixedly connected, and the other end is fixedly connected to one end of the slide rod (3) close to the rotating handle (10); four grooves (5) are provided on the support rod (1), and the four grooves (5) are distributed in a circular array about the central axis of the support rod (1); an incomplete gear (7) and a gear (6) are rotatably arranged in each of the grooves (5), and a side rod (8) is fixedly arranged on the part of the incomplete gear (7) without teeth, and the incomplete gear (7) and the rack (16) are both meshed with the gear (6).

3. The height-controllable lifting pole according to claim 2, characterized in that: Positioning holes (13) are provided on both sides of the end of each side rod (8) away from the gear (6), and positioning beads are installed on the inner walls of both sides of each groove (5), and the positioning beads are limitedly matched with the positioning holes (13).

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