Linear damping rotating shaft

Abstract

The utility model discloses a linear damping rotating shaft in the field of linear damping rotating shafts, which comprises a right shaft, a rotating shaft, a left shaft and an adjusting mechanism, the rotating shaft is fixedly connected to the middle of the left end of the right shaft, the left shaft is rotatably connected to the outer side wall of the rotating shaft, the adjusting mechanism is connected to an inner cavity of the right shaft, and the left shaft is rotatably connected to the outer side wall of the rotating shaft. The outer side of the rotating shaft is sleeved with a damping pad, a threaded rod is rotationally connected to the middle between the left side and the right side of an inner cavity of the right shaft, according to the linear damping rotating shaft, the inserting rod is pulled, the inserting rod is moved out of the inserting hole, the rotating disc is rotated, the threaded rod is driven to rotate, and by means of limitation of the connecting rod, when the threaded rod rotates, the moving disc moves on the outer side of the threaded rod; and the connecting rod drives the extrusion disc to move, the extrusion disc extrudes the damping pad, and therefore the damping strength is increased, the damping strength of the table lamp can be adjusted according to the using habit of a user, and adjustment can be conveniently conducted when damping is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of a straight-line damping rotating shaft, in particular to a straight-line damping rotating shaft. Background Art

[0002] As a connecting element, the damping shaft is widely used in connecting the image display screen and the body of notebook computers, digital cameras and portable DVD players, as well as the connecting element between the retractable rotating antenna and the base in GPS. It can make the LCD screen and antenna stop at the required position when opened. Currently, the tight fit structure of the shaft and the sleeve is generally adopted. There is also a structure in which a groove is opened at the end of the shaft and the shaft is expanded with screws to increase the friction damping.

[0003] A Chinese patent with publication number CN216199773U discloses a straight damping shaft. In this patent, an adjusting screw can control the flow of damping grease, thereby adjusting the damping resistance. The first torsion spring and the second torsion spring have different toughnesses, which can make the torsion bar torsion smoother and without a sense of frustration. However, the current damping shaft has a relatively fixed structure, and the damping tightness of the damping shaft cannot be adjusted according to the user's usage habits. The functionality is single, and after the damping rubber pad of the existing desk lamp damping shaft is worn, the installation of the damping rubber pad is relatively complicated, and it is not convenient to quickly replace the worn damping rubber pad, which is time-consuming and labor-intensive. For this reason, we propose a straight damping shaft. Utility Model Content

[0004] The purpose of the utility model is to provide a straight damping shaft to solve the problem that the current damping shaft proposed in the above background technology has a relatively fixed structure, cannot adjust the damping tightness of the damping shaft according to the user's usage habits, and has a single functionality.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a straight damping shaft, comprising a right shaft, a rotating shaft, a left shaft and an adjusting mechanism, wherein the rotating shaft is fixedly connected to the middle of the left end of the right shaft, the left shaft is rotatably connected to the outer side wall of the rotating shaft, the adjusting mechanism is connected to the inner cavity of the right shaft, the outer side of the rotating shaft is sleeved with a damping pad, the adjusting mechanism comprises a threaded rod, a rotating disk, a jack, a cross bar, a plug rod, a connecting plate, a first spring, a moving disk, a connecting rod and an extrusion disk, and the inner cavity of the right shaft is between the left and right sides. The middle part is rotatably connected with a threaded rod, the right part of the outer wall of the threaded rod is fixedly connected with a turntable, the right side edge of the turntable is evenly penetrated with holes, the right part of the inner cavity side wall of the right shaft is fixedly connected with a cross bar, the middle part of the right side of the cross bar is slidably connected with an insertion rod, the right end of the insertion rod is fixedly connected with a connecting plate, the outer side of the insertion rod is sleeved with a first spring, the outer wall of the threaded rod is screwed with a moving disk through a thread, the left top and bottom of the moving disk are fixedly connected with a connecting rod, and the left end of the connecting rod is fixedly connected with an extrusion disk.

[0006] As a further description of the above technical solution:

[0007] The left and right ends of the first spring are fixedly connected to the right side of the cross bar and the left side of the connecting plate respectively.

[0008] As a further description of the above technical solution:

[0009] The connecting rod passes through the left side of the right shaft, and the connecting rod is slidably connected to the right shaft.

[0010] As a further description of the above technical solution:

[0011] The extrusion disk is sleeved on the outer side wall of the rotating shaft.

[0012] As a further description of the above technical solution:

[0013] The left end of the rotating shaft is fixedly connected to a limiting mechanism, and the limiting mechanism includes a fixing hole, a positioning groove, a collar, a positioning block, a fixing rod, a circular plate and a second spring. A fixing hole is opened on the left part of the top of the outer wall of the rotating shaft, and a positioning groove is symmetrically opened on the left part of the outer wall of the rotating shaft. A collar is sleeved on the left part of the outer wall of the rotating shaft, and a positioning block is symmetrically fixedly connected to the inner wall of the collar, and a fixing rod is slidably connected to the outer wall of the collar, and a circular plate is fixedly connected to the top of the fixing rod, and a second spring is sleeved on the outside of the fixing rod.

[0014] As a further description of the above technical solution:

[0015] The top end and the bottom end of the second spring are fixedly connected to the bottom of the circular plate and the outer side wall of the collar respectively, and the inner diameter of the collar is equal to the diameter of the rotating shaft.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The straight damping shaft pulls the insertion rod to move the insertion rod out of the insertion hole, rotates the turntable, drives the threaded rod to rotate, and utilizes the limitation of the connecting rod. When the threaded rod rotates, the movable plate moves outside the threaded rod, so that the connecting rod drives the extrusion plate to move, and the extrusion plate squeezes the damping pad, thereby increasing the damping strength. The damping strength of the desk lamp can be adjusted according to the user's usage habits, which is convenient for adjustment when the damping is reduced.

[0018] 2. The straight damping shaft drives the fixing rod to move by pulling the circular plate, so that the fixing rod moves out of the fixing hole, releases the fixation of the sleeve ring, removes the sleeve ring, and thus removes the left shaft from the rotating shaft, thereby facilitating the removal of the damping pad and the replacement of the damping pad, saving time and effort and improving replacement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a straight damping shaft proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of an adjustment mechanism of a straight damping shaft proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of a rod installation structure of a straight damping shaft proposed by the utility model;

[0022] Figure 4 The utility model is a schematic diagram of a limit mechanism structure of a straight damping shaft.

[0023] In the figure: 100, right axis; 200, rotating axis; 210, damping pad; 300, left axis; 400, adjusting mechanism; 410, threaded rod; 420, turntable; 421, jack; 430, cross bar; 431, plug rod; 432, connecting plate; 433, first spring; 440, moving plate; 450, connecting rod; 460, squeezing plate; 500, limiting mechanism; 510, fixing hole; 520, positioning groove; 530, collar; 540, positioning block; 550, fixing rod; 560, round plate; 570, second spring. DETAILED DESCRIPTION

[0024] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 indirectly connected 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.

[0027] The utility model provides a straight damping shaft, which can adjust the damping strength of the desk lamp according to the user's usage habits, and is convenient for adjustment when the damping is reduced. Figure 1-4 , including a right shaft 100, a rotating shaft 200, a left shaft 300 and an adjusting mechanism 400;

[0028] Please refer again Figure 1 , the right shaft 100 is used to install the rotating shaft 200, the left shaft 300 and the adjusting mechanism 400;

[0029] Please refer again Figure 1 The rotating shaft 200 is fixedly connected to the middle of the left end of the right shaft 100 and is used to install the left shaft 300. The left shaft 300 is rotatably connected to the outer wall of the rotating shaft 200. The adjustment mechanism 400 is connected to the inner cavity of the right shaft 100. The outer side of the rotating shaft 200 is sleeved with a damping pad 210.

[0030] Please refer again Figure 2 , the adjustment mechanism 400 includes a threaded rod 410, a rotating disk 420, a plug hole 421, a cross bar 430, an insert rod 431, a connecting plate 432, a first spring 433, a moving disk 440, a connecting rod 450 and a pressing disk 460;

[0031] Please refer again Figure 2 A threaded rod 410 is rotatably connected to the middle part between the left and right sides of the inner cavity of the right shaft 100, a turntable 420 is fixedly connected to the right side of the outer wall of the threaded rod 410, and a plug hole 421 is evenly penetrated and opened on the right side of the turntable 420, and a crossbar 430 is fixedly connected to the right side wall of the inner cavity of the right shaft 100;

[0032] Please refer again Figure 2 A plug rod 431 is slidably connected to the middle part of the right side of the cross bar 430, and the right end of the plug rod 431 is fixedly connected to a connecting plate 432. A first spring 433 is sleeved on the outer side of the plug rod 431. A movable disk 440 is screwed to the outer wall of the threaded rod 410 through a thread. A connecting rod 450 is fixedly connected to the top and bottom of the left side of the movable disk 440, and the left end of the connecting rod 450 is fixedly connected to an extrusion disk 460.

[0033] To summarize, the insertion rod 431 is pulled to move the insertion rod 431 out of the insertion hole 421, and the turntable 420 is rotated to drive the threaded rod 410 to rotate. By utilizing the restriction of the connecting rod 450, when the threaded rod 410 rotates, the movable plate 440 moves outside the threaded rod 410, so that the connecting rod 450 drives the extrusion plate 460 to move, and the extrusion plate 460 squeezes the damping pad 210, thereby increasing the damping strength. The damping strength of the desk lamp can be adjusted according to the user's usage habits, which is convenient for adjustment when the damping is reduced.

[0034] Please refer again Figure 2 The left and right ends of the first spring 433 are fixedly connected to the right side of the cross bar 430 and the left side of the connecting plate 432 respectively.

[0035] Please refer again Figure 2 The connecting rod 450 passes through the left side of the right shaft 100, and the connecting rod 450 and the right shaft 100 are slidably connected.

[0036] Please refer again Figure 2 The extrusion disk 460 is sleeved on the outer wall of the rotating shaft 200 .

[0037] Please refer again Figure 4The left end of the rotating shaft 200 is fixedly connected to a limiting mechanism 500, and the limiting mechanism 500 includes a fixing hole 510, a positioning groove 520, a collar 530, a positioning block 540, a fixing rod 550, a circular plate 560 and a second spring 570. A fixing hole 510 is provided at the left portion of the top of the outer wall of the rotating shaft 200, and a positioning groove 520 is symmetrically provided at the left portion of the outer wall of the rotating shaft 200. A collar 530 is sleeved on the left portion of the outer wall of the rotating shaft 200, and a positioning block 540 is symmetrically fixedly connected to the inner wall of the collar 530. A fixing rod 550 is slidably connected to the outer wall of the collar 530, and a circular plate 560 is fixedly connected to the top of the fixing rod 550, and a second spring 570 is sleeved on the outer side of the fixing rod 550.

[0038] Please refer again Figure 4 The top and bottom ends of the second spring 570 are fixedly connected to the bottom of the circular plate 560 and the outer wall of the collar 530 respectively, and the inner diameter of the collar 530 is equal to the diameter of the rotating shaft 200 .

[0039] To summarize, by pulling the circular plate 560, the fixing rod 550 is driven to move, so that the fixing rod 550 is moved out of the fixing hole 510, the fixation of the ring 530 is released, and the ring 530 is removed, so that the left shaft 300 is removed from the rotating shaft 200, thereby facilitating the disassembly of the damping pad 210 and the replacement of the damping pad 210, saving time and effort and improving replacement efficiency.

[0040] In specific use, when it is necessary to enhance the damping, the technical personnel in this field pull the plug rod 431 to move the plug rod 431 out of the socket 421, rotate the turntable 420, drive the threaded rod 410 to rotate, and utilize the restriction of the connecting rod 450 to make the movable plate 440 move outside the threaded rod 410 when the threaded rod 410 rotates, so that the connecting rod 450 drives the extrusion plate 460 to move, so that the extrusion plate 460 squeezes the damping pad 210, thereby increasing the damping strength, and then aligns the socket 421 with the plug rod 431, loosens the connecting plate 432, and resets the plug rod 431 through the reset of the first spring 433, and is embedded in the socket 421 to fix the turntable 420. When the damping pad 210 is damaged and needs to be replaced, Pull the circular plate 560 to move the fixing rod 550 so that the fixing rod 550 moves out of the fixing hole 510, release the fixation of the ring 530, remove the ring 530, and thus remove the left shaft 300 from the rotating shaft 200, thereby facilitating the disassembly of the damping pad 210, and then install the new damping pad 210, and sleeve the left shaft 300 on the outside of the rotating shaft 200, and then pull the circular plate 560 to embed the positioning block 540 in the positioning groove 520, so that the fixing hole 510 is aligned with the fixing rod 550, loosen the circular plate 560, and through the resetting of the second spring 570, the fixing rod 550 is embedded in the fixing hole 510, and the ring 530 is fixed to complete the replacement of the damping pad 210.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A straight damping shaft, characterized in that: The invention comprises a right shaft (100), a rotating shaft (200), a left shaft (300) and an adjusting mechanism (400), wherein the rotating shaft (200) is fixedly connected to the middle part of the left end of the right shaft (100), the left shaft (300) is rotatably connected to the outer side wall of the rotating shaft (200), the adjusting mechanism (400) is connected to the inner cavity of the right shaft (100), the outer side of the rotating shaft (200) is sleeved with a damping pad (210), the adjusting mechanism (400) comprises a threaded rod (410), a rotating disk (420), a jack (421), a cross bar (430), an inserting rod (431), a connecting plate (432), a first spring (433), a moving disk (440), a connecting rod (450) and an extrusion disk (460), the middle part of the inner cavity of the right shaft (100) between the left and right sides of the rotating shaft (200) is fixedly connected to the middle part of the inner cavity of the right shaft (100) between the left and right sides of the rotating shaft (200), the left shaft (300) is rotatably connected to the outer side wall of the rotating shaft (200), the adjusting mechanism (400) is connected to the inner cavity of the right shaft (100), the outer side of the rotating shaft (200) is sleeved with a damping pad (210), the adjusting mechanism (400) comprises a threaded rod (410), a rotating disk (420), a jack (421), a cross bar (430), an inserting rod (431), a connecting plate (432), a first spring (433), a moving disk (440), a connecting rod (450) and an extrusion disk (460), A threaded rod (410) is movably connected to the right side wall of the outer side of the threaded rod (410), a rotating disk (420) is fixedly connected to the right side wall of the rotating disk (420), and a plug hole (421) is evenly penetrated through the right side of the rotating disk (420), a cross bar (430) is fixedly connected to the right side wall of the inner cavity of the right shaft (100), and a plug rod (431) is slidably connected through the middle right side of the cross bar (430), and the right end of the plug rod (431) is fixedly connected to a connecting plate (432), and the outer side of the plug rod (431) is sleeved with a first spring (433), and the outer side wall of the threaded rod (410) is screwed with a moving disk (440) through a thread, and the top and bottom of the left side of the moving disk (440) are fixedly connected with a connecting rod (450), and the left end of the connecting rod (450) is fixedly connected with an extrusion disk (460).

2. The straight damping shaft according to claim 1, characterized in that: The left and right ends of the first spring (433) are fixedly connected to the right side of the cross bar (430) and the left side of the connecting plate (432) respectively.

3. The straight damping shaft according to claim 1, characterized in that: The connecting rod (450) passes through the left side of the right shaft (100), and the connecting rod (450) and the right shaft (100) are slidably connected.

4. The straight damping shaft according to claim 1, characterized in that: The extrusion disk (460) is sleeved on the outer side wall of the rotating shaft (200).

5. The straight damping shaft according to claim 1, characterized in that: The left end of the rotating shaft (200) is fixedly connected to a limiting mechanism (500), and the limiting mechanism (500) comprises a fixing hole (510), a positioning groove (520), a collar (530), a positioning block (540), a fixing rod (550), a circular plate (560) and a second spring (570). A fixing hole (510) is provided at the left portion of the top of the outer wall of the rotating shaft (200), and a positioning groove (520) is symmetrically provided at the left portion of the outer wall of the rotating shaft (200). A collar (530) is sleeved on the left portion of the outer wall of the rotating shaft (200), and a positioning block (540) is symmetrically fixedly connected to the inner wall of the collar (530). A fixing rod (550) is slidably connected to the outer wall of the collar (530), and a circular plate (560) is fixedly connected to the top of the fixing rod (550), and a second spring (570) is sleeved on the outer side of the fixing rod (550).

6. The straight damping shaft according to claim 5, characterized in that: The top and bottom ends of the second spring (570) are fixedly connected to the bottom of the circular plate (560) and the outer wall of the collar (530) respectively, and the inner diameter of the collar (530) is equal to the diameter of the rotating shaft (200).

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