A universal stepless fine-tuning steering mechanism for a fishing umbrella and an outdoor umbrella

Abstract

A universal stepless fine-tuning steering mechanism for a fishing umbrella and an outdoor umbrella, comprising a steering mechanism body of a roughly T-shaped structure, the steering mechanism body comprising a lower rod coupling sleeve, a worm gear and a parachute gear are arranged in the lower rod coupling sleeve, the parachute gear and the worm gear are installed vertically and meshed with each other; the worm gear extends horizontally to the left and passes through the worm shaft sleeve and is fixedly connected to a handwheel; the parachute gear fixing sleeve is arranged on the transmission shaft, and a sleeve lower cover is arranged below the parachute gear; a spring is sleeved on the transmission shaft and between the parachute gear and the sleeve lower cover, when the spring is in a natural state, the worm gear and the parachute gear are meshed for transmission, and when the spring is in a compressed state, the worm gear and the parachute gear are separated; the upper end of the transmission shaft passes vertically upward through the lower rod coupling sleeve and is connected to a button, and the button is pressed to switch the worm gear and the parachute gear to mesh or separate. The present invention improves the ease and accuracy of adjusting the direction of the umbrella body, and is very easy to use in terms of the end user's experience.

Description

Technical Field

[0001] The invention relates to an angle adjustment mechanism for a fishing umbrella and an outdoor umbrella, and in particular to a universal stepless fine-tuning steering mechanism for a fishing umbrella and an outdoor umbrella. Background Art

[0002] The current mainstream fishing umbrella and outdoor umbrella structure is divided into an upper rod and a lower rod. The upper rod is connected to the umbrella body, and the lower rod is connected to the ground support seat, table, etc. A steering mechanism is used between the upper and lower rods to adjust the direction of the umbrella body, and the steering mechanism is the core component of the fishing umbrella and outdoor umbrella structure. The current mainstream fishing umbrella and outdoor umbrella steering mechanisms on the market are divided into the following categories:

[0003] 1. Manual tightening type: This type of steering mechanism uses a knob to manually tighten the upper and lower rods of the umbrella, and relies on the friction between the connecting ends of the upper and lower rods to fix the rotation angle. Some manufacturers have designed a convex tooth structure at the connection point, which has improved the locking strength, but due to the limitation of the number of teeth, the rotation angle subdivision is sacrificed, and only fixed degree steering can be performed. For products without a convex tooth structure, the rotation angle can be subdivided at any level, but the locking stability and strength are difficult to grasp, and it is very easy to loosen. This type of manual tightening steering structure has the disadvantages of inconvenient operation and difficult to grasp the strength.

[0004] 2. Spring convex tooth structure steering mechanism: This type of steering mechanism is the most advanced steering mechanism in the current market. It contains a spring structure. The upper and lower rods of the umbrella are connected by sleeves with convex and concave gears. By pressing the button, the internal gears are disengaged, and the upper rod angle can be adjusted. Release the button, and the spring will engage the concave and convex gears and fix them. This structure is simple and easy to use, and the operation is extremely easy. The problem is that due to the influence of the number of teeth on the internal gears, the adjustment angle is not subdivided enough. The mainstream subdivision is 24 subdivisions, resulting in a small adjustment angle range and the inability to accurately adjust the upper rod angle.

[0005] In summary, the current steering mechanisms of fishing umbrellas and outdoor umbrellas have the following problems: the steering angle is not subdivided enough, and the adjustment angle of each gear is too different. The manual locking mode is not convenient to operate, and it is difficult to control the strength and angle. It is impossible to make precise adjustments. Summary of the invention

[0006] In order to overcome the above problems, the present invention provides a universal stepless fine-tuning steering mechanism for a fishing umbrella and an outdoor umbrella.

[0007] The technical scheme adopted by the present invention is: a universal stepless fine-tuning steering mechanism for a fishing umbrella and an outdoor umbrella, comprising a steering mechanism body of a roughly T-shaped structure, the steering mechanism body comprising a lower rod coupling sleeve, a worm gear and a bevel gear are arranged in the lower rod coupling sleeve, the worm gear is arranged horizontally, the bevel gear and the worm gear are vertically installed and meshed with each other; a worm shaft sleeve is arranged at the left end of the worm gear, the worm shaft sleeve is threadedly connected with the lower rod coupling sleeve, the worm gear extends horizontally to the left and passes through the worm shaft sleeve and is fixedly connected with a hand wheel; a sleeve for installing the lower rod of the fishing umbrella is arranged at one end of the lower rod coupling sleeve away from the hand wheel;

[0008] The bevel gear fixed sleeve is arranged on the transmission shaft, and a shaft sleeve lower cover is arranged below the bevel gear, and the shaft sleeve lower cover is threadedly connected with the lower rod coupling sleeve; a spring is sleeved on the transmission shaft and located between the bevel gear and the shaft sleeve lower cover, and when the spring is in a natural state, the worm gear and the bevel gear are meshed for transmission, and when the spring is in a compressed state, the worm gear and the bevel gear are separated; the upper end of the transmission shaft vertically passes through the lower rod coupling sleeve and is connected to a button, and the button is pressed to switch the worm gear and the bevel gear to mesh or separate;

[0009] The transmission shaft extends vertically downward and passes through the lower cover of the sleeve to be threadedly connected to the upper rod connecting rod; the upper rod connecting rod is vertically arranged, and the upper end of the upper rod connecting rod is provided with a screw hole for threading with the transmission shaft, and the middle part of the upper rod connecting rod is provided with a radial connecting hole, and the size of the connecting hole is adapted to the size of the upper rod of the fishing umbrella.

[0010] Furthermore, a radially penetrating groove is provided at the bottom of the connecting hole, a locking slider is placed in the groove, a screw hole is provided at the bottom of the locking slider, and a first through hole is axially penetrated at the bottom of the groove; an upper rod locking knob is installed at the bottom of the upper rod connecting rod, and a vertically upward threaded column is provided at a position of the upper rod locking knob corresponding to the first through hole, the interior of the threaded column has a second through hole axially penetrated, the threaded column is threadedly connected to the first through hole, a slider locking screw is passed through the second through hole, and the head end of the slider locking screw extends into the groove and is threadedly connected to the locking slider.

[0011] Furthermore, the groove is a rectangular groove, and the upper surface of the locking slider is an annular concave structure that is compatible with the wall surface of the upper rod of the fishing umbrella.

[0012] Furthermore, the worm shaft sleeve and the handwheel are both made of aluminum alloy, and the worm gear and the bevel gear are both made of brass.

[0013] The beneficial effects of the present invention are as follows: the steering mechanism uses a worm gear and a bevel gear to cooperate for precise positioning and locking. After pressing a button, it can be universally rotated steplessly, and it can be locked by releasing the button. If fine-tuning is required, it is only necessary to rotate the worm handwheel. The ease and accuracy of adjusting the direction of the umbrella body are improved, and the end user's experience is very easy and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an exploded view of the present invention.

[0015] Figure 2 It is a three-dimensional diagram of the present invention at one angle.

[0016] Figure 3 It is a three-dimensional diagram from another angle of the present invention.

[0017] Explanation of the reference numerals in the accompanying drawings: A, handwheel; B, worm shaft sleeve; C, worm gear rod; D, bevel gear; E, lower rod connecting sleeve; F, spring; G, shaft sleeve lower cover; H, upper rod connecting rod; I, button; J, locking slider; K, upper rod locking knob; M, slider locking screw; N, sleeve. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention 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 limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" 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.

[0021] Referring to the accompanying drawings, a universal stepless fine-tuning steering mechanism for a fishing umbrella and an outdoor umbrella comprises a steering mechanism body of a roughly T-shaped structure, the steering mechanism body comprises a lower rod coupling sleeve E, a worm gear C and a bevel gear D are arranged inside the lower rod coupling sleeve E, the worm gear C is arranged horizontally, and the bevel gear D and the worm gear C are installed perpendicular to each other; a worm shaft sleeve B is arranged at the left end of the worm gear C, the worm shaft sleeve B is threadedly connected to the lower rod coupling sleeve E, the worm gear C extends horizontally to the left and passes through the worm shaft sleeve B and is fixedly connected to the hand wheel A; a sleeve N for installing the lower rod of the fishing umbrella is arranged at one end of the lower rod coupling sleeve E away from the hand wheel A;

[0022] The bevel gear D is fixedly sleeved on the transmission shaft, and a shaft sleeve lower cover G is provided below the bevel gear D, and the shaft sleeve lower cover G is threadedly connected to the lower rod coupling sleeve E; a spring F is sleeved on the transmission shaft and located between the bevel gear D and the shaft sleeve lower cover G, and when the spring is in a natural state, the worm gear C is meshed with the bevel gear D for transmission, and when the spring is in a compressed state, the worm gear C is separated from the bevel gear D; the upper end of the transmission shaft vertically passes through the lower rod coupling sleeve E upward and is connected to a button, and the button is pressed to switch the worm gear C to mesh or separate with the bevel gear D;

[0023] The transmission shaft extends vertically downward and passes through the lower cover G of the sleeve to be threadedly connected to the upper rod connecting rod H; the upper rod connecting rod H is vertically arranged, and the upper end of the upper rod connecting rod H is provided with a screw hole for threading with the transmission shaft, and the middle part of the upper rod connecting rod H is provided with a radial connecting hole, and the size of the connecting hole is adapted to the size of the upper rod of the fishing umbrella.

[0024] The bottom of the connecting hole is provided with a radially penetrating rectangular groove, in which a locking slider J is placed, the upper surface of the locking slider J is an annular concave structure adapted to the wall of the upper rod of the fishing umbrella, the bottom of the locking slider J is provided with a screw hole, and the bottom of the groove is provided with a first through hole axially penetrating; the bottom of the upper rod connecting rod H is provided with an upper rod locking knob K, and the upper rod locking knob K is provided with a vertically upward threaded column at a position corresponding to the first through hole, the interior of the threaded column is provided with an axially penetrating second through hole, the threaded column is threadedly connected with the first through hole, a slider locking screw M is penetrated in the second through hole, and the head end of the slider locking screw M extends into the groove and is threadedly connected with the locking slider J. The worm shaft sleeve B and the handwheel A are made of aluminum alloy, and the worm gear C and the umbrella gear D are made of brass to ensure the structural strength.

[0025] During installation, if Figure 1As shown, insert and install the worm gear C into the lower rod coupling sleeve E, and insert the worm gear C into the prefabricated shaft hole. Then tighten the worm shaft sleeve B to the lower rod coupling sleeve E through the thread, and then tighten the handwheel A to the thread at the end of the worm gear C. Then insert the bevel gear D into the lower rod coupling sleeve E, insert the spring F into the transmission shaft of the bevel gear D, and screw the sleeve lower cover G into the lower rod coupling sleeve E and tighten it. Tighten the upper rod connecting rod H to the thread at the lower end of the transmission shaft of the bevel gear D. Put the locking slider J into the groove in the connecting hole of the upper rod connecting rod H, screw the threaded column of the upper rod locking knob K to the bottom, and then pass the slider locking screw M through the threaded column of the locking knob K and tighten it to the locking slider J.

[0026] The specific working principle is as follows: the lower rod of the fishing umbrella or outdoor umbrella is directly fixed inside the casing of the body, and the upper rod of the fishing umbrella or outdoor umbrella is fixed in the connecting hole by the upper rod locking knob K. Pressing button I causes the axial position of the umbrella gear D to be displaced, thereby disengaging from the tight fit of the vortex gear rod. In the separated state, the upper rod of the fishing umbrella or outdoor umbrella can be rotated at any angle. Release button I, and under the action of the internal spring F, the umbrella gear D will fit tightly with the vortex gear rod C again, thereby locking the upper rod of the fishing umbrella or outdoor umbrella. Rotate the handwheel A at the end of the vortex gear rod C, and the vortex gear rod C will rotate, driving the umbrella gear D to rotate during the movement, thereby achieving fine-tuning of the upper rod of the fishing umbrella or outdoor umbrella. Since this mechanism adopts a vortex gear structure and an umbrella gear, the rotational displacement of the vortex gear structure is a continuous displacement without intervals, thus realizing stepless universal rotation of the steering mechanism.

[0027] The contents described in the embodiments of this specification are merely an enumeration of the implementation forms of the inventive concept. The protection scope of the present invention should not be regarded as limited to the specific forms described in the embodiments. The protection scope of the present invention also extends to equivalent technical means that can be conceived by those skilled in the art based on the inventive concept.

Claims

1. A universal stepless fine-tuning steering mechanism for a fishing umbrella and an outdoor umbrella, characterized by: The invention comprises a steering mechanism body with a roughly T-shaped structure, the steering mechanism body comprises a lower rod coupling sleeve (E), a worm gear (C) and a bevel gear (D) are arranged in the lower rod coupling sleeve (E), the worm gear (C) is arranged horizontally, the bevel gear (D) and the worm gear (C) are vertically installed and meshed with each other; a worm shaft sleeve (B) is arranged at the left end of the worm gear (C), the worm shaft sleeve (B) is threadedly connected with the lower rod coupling sleeve (E), the worm gear (C) extends horizontally to the left and passes through the worm shaft sleeve (B) to be fixedly connected with a hand wheel (A); a sleeve (N) for installing the lower rod of the fishing umbrella is arranged at one end of the lower rod coupling sleeve (E) away from the hand wheel (A); The bevel gear (D) is fixedly sleeved on the transmission shaft, a shaft sleeve lower cover (G) is provided below the bevel gear (D), and the shaft sleeve lower cover (G) is threadedly connected to the lower rod coupling sleeve (E); a spring (F) is sleeved on the transmission shaft and located between the bevel gear (D) and the shaft sleeve lower cover (G), when the spring (F) is in a natural state, the worm gear (C) and the bevel gear (D) are meshed for transmission, and when the spring (F) is in a compressed state, the worm gear (C) and the bevel gear (D) are separated; the upper end of the transmission shaft vertically passes through the lower rod coupling sleeve (E) and is connected to a button (I), and the button (I) is pressed to switch the worm gear (C) and the bevel gear (D) to mesh or separate; The transmission shaft extends vertically downward and passes through the lower cover of the shaft sleeve (G) to be threadedly connected with the upper rod connecting rod (H); the upper rod connecting rod (H) is vertically arranged, and the upper end of the upper rod connecting rod (H) is provided with a screw hole for threading with the transmission shaft, and the middle part of the upper rod connecting rod (H) is provided with a radial connection hole, and the size of the connection hole is adapted to the size of the upper rod of the fishing umbrella; The bottom of the connecting hole is provided with a radially penetrating groove, a locking slider (J) is placed in the groove, a screw hole is provided at the bottom of the locking slider (J), and a first through hole is provided axially penetrating at the bottom of the groove; an upper rod locking knob (K) is installed at the bottom of the upper rod connecting rod (H), a vertically upward threaded column is provided at a position of the upper rod locking knob (K) corresponding to the first through hole, a second through hole is axially penetrating inside the threaded column, the threaded column is threadedly connected to the first through hole, a slider locking screw (M) is passed through the second through hole, and the head end of the slider locking screw (M) extends into the groove and is threadedly connected to the locking slider (J); The groove is a rectangular groove, and the upper surface of the locking slider (J) is an annular concave structure adapted to the wall surface of the upper rod of the fishing umbrella; The worm gear (C) is inserted and installed on the lower rod coupling sleeve (E), and the worm gear (C) is inserted into the prefabricated shaft hole; the worm shaft sleeve (B) is screwed to the lower rod coupling sleeve (E) through threads, and the handwheel (A) is screwed to the threads at the end of the worm gear (C); the bevel gear (D) is inserted into the lower rod coupling sleeve (E), the spring (F) is inserted into the transmission shaft of the bevel gear (D), and the shaft sleeve lower cover (G) is screwed into the lower rod coupling sleeve (E); the upper rod connecting rod (H) is connected to the thread at the lower end of the transmission shaft of the bevel gear (D); the locking slider (J) is placed in the groove in the connecting hole of the upper rod connecting rod (H), and the threaded column of the upper rod locking knob (K) is screwed into the bottom, and the slider locking screw (M) passes through the threaded column of the locking knob (K) and is tightened to the locking slider (J).

2. A universal stepless fine-tuning steering mechanism for a fishing umbrella and an outdoor umbrella as claimed in claim 1, characterized in that: The worm shaft sleeve (B) and the hand wheel (A) are both made of aluminum alloy, and the worm gear (C) and the bevel gear (D) are both made of brass.

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