CN219500560U - Umbrella seat clamping mechanism of sunshade umbrella - Google Patents

Abstract

The utility model provides a sunshade umbrella seat clamping mechanism, which comprises a sleeve pipe, the screwed joint, collet chuck and knob, the sleeve pipe is vertical to be fixed in umbrella seat up end intermediate position, screwed joint fixed sleeve establishes in the sleeve pipe upper end, the through-hole that supplies sunshade umbrella lower knot to insert is seted up at screwed joint middle part, the knob cover is established on screwed joint, pass through threaded joint and rotate to be connected, the collet chuck is toper type clamp sleeve structure, collet chuck sets up in the knob, collet chuck upper end and the upper end fixed connection of knob, the collet chuck lower extreme inserts in screwed joint's the through-hole, the upper portion inner wall of through-hole is the taper hole of downward sloping, when knob clockwise screwing down removes, the collet chuck moves down thereupon, the conical surface of collet chuck offsets the extrusion with screwed joint's taper hole and draws in inwards and inserts the sunshade umbrella lower knot clamp locking in the sleeve pipe. The utility model has simple and reasonable structure and convenient operation, the collet is used for bearing the lower section of the sunshade umbrella more uniformly, the sunshade umbrella is not easy to damage, and the positioning is stable, safe and reliable.

Description

Umbrella seat clamping mechanism of sunshade umbrella

Technical Field

The utility model relates to the technical field of outdoor sunshades, in particular to a seat clamping mechanism of a sunshading umbrella.

Background

The sunshade umbrella is widely used as an outdoor leisure tool in leisure places such as squares, beaches, parks, courtyards and the like, and provides comfortable cooling space for people. The large area of the current outdoor sunshade is large, and the current outdoor sunshade needs to be firmly connected with the umbrella seat to prevent toppling. The common connection mode in the market is to fasten the lower section of the sunshade umbrella with the umbrella seat sleeve by using screws.

Among the above-mentioned prior art, be used for tight screw to push up down the festival to deformation, damage easily, and the festival leads to the fracture easily down because of the atress is inhomogeneous down, has certain potential safety hazard.

Through investigation, the connection device of the sunshade umbrella of the China patent No. CN202120574658.9 comprises a connection plate and a connection piece, wherein the connection piece consists of a rod part and an end part, the diameter of the end part is larger than that of the rod part, the length of the rod part is matched with the thickness of the connection plate, an opening matched with the connection piece is formed in the connection plate, the inner diameter of one side of the opening is larger than that of the end part of the connection piece, the inner diameter of the other side of the opening is smaller than that of the end part of the connection piece, the diameter of the connection plate is not smaller than that of the rod part of the connection piece, the connection plate penetrates through the end part of the connection piece through the large inner diameter end of the opening to be arranged on an umbrella seat, the connection piece is moved to the small inner diameter end of the opening through rotation or sliding of the connection plate, a threaded hole is formed in the umbrella seat, and when the connection piece is moved to the small inner diameter end of the opening, the connection plate and the umbrella seat are fixed together through the through hole and the threaded hole. The structure is convenient to operate, the sunshade can be fixed by only one screw, but a connecting plate is required to be fixed at the lower end of the upright post of the sunshade, and the structure of the umbrella base is not a conventional sleeve structure, so that the universality is not ideal enough, and the fixing requirement of the conventional sunshade cannot be met.

Disclosure of Invention

The utility model aims to solve the technical problem of providing the umbrella seat clamping mechanism of the sunshade umbrella, which is reasonable in structure, convenient to operate and stable and reliable in positioning.

The technical scheme adopted for solving the technical problems is as follows: a umbrella seat clamping mechanism of a sunshade umbrella is characterized in that: the umbrella seat clamping mechanism comprises a sleeve, a threaded joint, a collet and a knob, wherein the sleeve is vertically fixed at the middle position of the upper end face of the umbrella seat, the threaded joint is fixedly sleeved at the upper end of the sleeve, a through hole for inserting the lower section of the sunshade umbrella is formed in the middle of the threaded joint, the knob is sleeved on the threaded joint in a vertically movable manner and is in threaded rotation connection with the threaded joint, the collet is of a conical jacket structure formed by processing metal sheets, the collet is arranged in the knob, the upper end of the collet is fixedly connected with the upper end of the knob, the lower end of the collet is inserted into the through hole of the threaded joint, the upper inner wall of the through hole is a conical hole inclined downwards, when the knob is screwed downwards clockwise, the collet moves downwards along with the rotation of the knob, and the conical surface of the collet and the conical hole of the threaded joint are pressed against the conical hole of the threaded joint to be folded inwards and clamped and locked with the lower section of the sunshade umbrella inserted into the sleeve.

As an improvement, the lower end of the threaded joint is inserted in the sleeve through size fit, the upper end of the threaded joint is an external thread section with an expanded diameter, the external thread section is arranged above the sleeve and props against the pipe orifice, the knob is of a hollow sleeve structure, the inner wall of the knob is provided with an internal thread matched with the threaded joint, and the internal thread height of the knob is greater than that of the external thread section of the threaded joint.

Further, the collet chuck is processed by metal sheet and forms, including a plurality of annular V-arrangement or U-shaped clamping pieces that set up, V-arrangement or U-shaped clamping pieces connect gradually and form the inner wall to be cylinder, the outer wall is conical toper clamp cover, the middle part of every V-arrangement or U-shaped clamping piece upwards is protruding to be equipped with the connection piece, the upper end of connection piece stretches out the toper clamp cover and turns over outward and forms U-shaped buckle, the inner wall upper end shaping of knob has an annular step, U-shaped buckle sets up respectively on annular step's up end through snap ring and knob fixed, the upper end that the toper pressed from both sides the cover offsets with annular step's lower terminal surface just in time.

Still further, the number of the V-shaped or U-shaped clamping pieces is 6 to 10, and the number of the connecting pieces is 6 to 10 correspondingly.

Finally, the collet is an integral piece, the inner diameter of the collet is consistent with the diameter of the lower part of the through hole of the threaded joint, and when the knob rotates anticlockwise and moves upwards to a proper position, the lower end of the collet is positioned at the position of the upper conical hole of the through hole.

Compared with the prior art, the utility model has the advantages that: the upper end of the sleeve of the umbrella seat is provided with a threaded joint, a knob and a collet chuck, and the tightness of the collet chuck inside is controlled by rotating the knob, so that the lower joint is clamped and fixed. The collet is more uniformly stressed on the lower section of the sunshade umbrella, so that the sunshade umbrella is not easy to damage. Convenient operation and safe structure. The utility model has simple and reasonable structure and convenient operation, the collet is used for bearing the lower section of the sunshade umbrella more uniformly, the sunshade umbrella is not easy to damage, and the positioning is more stable, safe and reliable.

Drawings

Fig. 1 is a schematic view of a sunshade according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of an embodiment of the present utility model;

FIG. 3 is an exploded view of FIG. 2;

FIG. 4 is a cross-sectional view showing the structure of an embodiment of the present utility model in a knob unscrewed state;

fig. 5 is a sectional view showing a structure in a knob-screwed state according to an embodiment of the present utility model.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1 to 5, an umbrella holder clamping mechanism for a sunshade umbrella comprises a sleeve 2, a threaded joint 4, a collet chuck 5 and a knob 3, wherein the sleeve 2 is vertically fixed at the middle position of the upper end face of the umbrella holder 1, the threaded joint 4 is fixedly sleeved at the upper end of the sleeve 2, a through hole 41 for inserting a lower section of the sunshade umbrella is formed in the middle part of the threaded joint 4, the knob 3 is sleeved on the threaded joint 4 in a vertically movable manner and is in threaded rotary connection with the threaded joint 4, the collet chuck 5 is of a conical jacket structure formed by processing metal sheets, the collet chuck 5 is arranged in the knob 3, the upper end of the collet chuck 5 is fixedly connected with the upper end of the knob 3, the lower end of the collet chuck 5 is inserted into the through hole 41 of the threaded joint 4, the upper inner wall of the through hole 41 is a conical hole 42 inclined downwards, and when the knob 3 is screwed downwards, the collet chuck 5 moves downwards along with the clockwise, and the conical surface of the collet chuck 5 is pressed against the conical hole of the threaded joint 4 to be folded inwards and clamped and locked with the sunshade umbrella inserted into the sleeve 1.

The concrete structure is as follows: the lower extreme of screwed joint 4 inserts in sleeve pipe 2 through the size cooperation, and screwed joint 4's upper end is the external screw thread section 43 of expanding, and external screw thread section 43 sets up in sleeve pipe 2 top and mouth of pipe offset, and knob 3 is hollow sleeve structure, and knob 3's inner wall has with screwed joint 4 complex internal thread, and knob 3's internal thread height is greater than screwed joint 4's external screw thread section height. The collet 5 is preferably formed by processing a metal sheet, and of course, the collet can also be made of plastic, and comprises a plurality of V-shaped or U-shaped clamping pieces 51 which are annularly arranged, wherein the V-shaped or U-shaped clamping pieces 51 are sequentially connected to form a conical jacket with a cylindrical inner wall and a conical outer wall, the middle part of each V-shaped or U-shaped clamping piece 51 is convexly provided with a connecting sheet 52 upwards, the upper end of each connecting sheet 52 extends out of the conical jacket and is outwards turned to form a U-shaped buckle 53, an annular step 31 is formed at the upper end of the inner wall of the knob 3, the U-shaped buckle 53 is respectively arranged on the upper end face of the annular step 31 and is fixed with the knob 3 through a clamping ring 6, and the upper end of the conical jacket just abuts against the lower end face of the annular step 31. The number of V-shaped or U-shaped clamping pieces 51 in the embodiment is 8, and the number of connecting pieces is 6-8. The collet 5 is a single piece, the inside diameter of the collet 5 is identical to the diameter of the lower part of the through hole 41 of the threaded joint 4, and when the knob 3 is rotated counterclockwise and moved upward to a proper position, the lower end of the collet 3 is positioned at the upper tapered hole 42 of the through hole 41.

When the umbrella is used, the lower section of the umbrella passes through the collet chuck 5 and the threaded connector 4 to be inserted into the sleeve 2 of the umbrella seat 1, the knob 3 is rotated clockwise, the knob 3 moves downwards under the cooperation of the internal thread of the knob 3 and the threaded connector 4, the collet chuck 5 is driven to move downwards, the V-shaped or U-shaped clamping piece 51 of the collet chuck 5 is elastically deformed and folded inwards under the limitation of the inner wall of the conical hole 42 of the threaded connector 4, and the conical jacket of the collet chuck 5 is clamped with the lower section of the umbrella, so that the locking function is completed.

When the sunshade is required to be loosened, the knob 3 is rotated anticlockwise, the knob 3 moves upwards to drive the collet chuck 5 to move upwards, the V-shaped or U-shaped clamping piece 51 of the collet chuck 5 resets under the elastic action to drive the conical collet chuck to restore to the original state, and the collet chuck 5 is loosened with the lower section of the sunshade.

The whole operation of this embodiment only need rotate knob 3 can accomplish, need not the mounting such as screw, and the operation is very convenient, and is more even to the atress of sun shade lower knot through collet chuck 5 moreover, not fragile sun shade to the location is stable reliable.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims (5)

1. A umbrella seat clamping mechanism of a sunshade umbrella is characterized in that: the umbrella seat clamping mechanism comprises a sleeve, a threaded joint, a collet and a knob, wherein the sleeve is vertically fixed at the middle position of the upper end face of the umbrella seat, the threaded joint is fixedly sleeved at the upper end of the sleeve, a through hole for inserting the lower section of the sunshade umbrella is formed in the middle of the threaded joint, the knob is sleeved on the threaded joint in a vertically movable mode and is in threaded rotation connection with the threaded joint, the collet is of a conical jacket structure, the collet is arranged in the knob, the upper end of the collet is fixedly connected with the upper end of the knob, the lower end of the collet is inserted into the through hole of the threaded joint, the inner wall of the upper portion of the through hole is of a conical hole which is inclined downwards, when the knob is screwed downwards in a clockwise screwing mode, the collet moves downwards, and the conical surface of the collet and the conical hole of the threaded joint are pressed against each other to be inwards folded and clamped and locked with the lower section of the sunshade umbrella inserted into the sleeve.

2. The umbrella base clamping mechanism of claim 1, wherein: the lower extreme of screwed joint inserts in the sleeve pipe through the size cooperation, and screwed joint's upper end is the external screw thread section of expanding, and the external screw thread section sets up in sleeve pipe top and mouth of pipe offset, and the knob is hollow sleeve structure, and the inner wall of knob have with screwed joint complex internal thread, and the internal screw thread height of knob is greater than screwed joint's external screw thread section height.

3. The umbrella base clamping mechanism of claim 2, wherein: the collet chuck is formed by metal sheet processing, including a plurality of annular V or U-shaped clamping pieces that set up, V-arrangement or U-shaped clamping pieces connect gradually and form the conical clamp sleeve that the inner wall is cylinder, the outer wall is conical, the middle part of every V-arrangement or U-shaped clamping piece upwards is protruding to be equipped with the connection piece, the upper end of connection piece stretches out the conical clamp sleeve and turns over the U type buckle that forms outwards, the inner wall upper end shaping of knob has an annular step, U-shaped buckle setting is fixed with the knob through the snap ring on annular step's up end, the upper end that the conical clamp sleeve's upper end offsets with annular step's lower terminal surface.

4. A canopy clip mechanism as claimed in claim 3, wherein: the number of the V-shaped or U-shaped clamping pieces is 6-10, and the number of the connecting pieces is 6-10.

5. An umbrella base clamping mechanism as claimed in any one of claims 1 to 4, wherein: the collet is an integral piece, the inner diameter of the collet is consistent with the diameter of the lower part of the through hole of the threaded joint, and when the knob rotates anticlockwise and moves upwards to a proper position, the lower end of the collet is positioned at the position of the upper conical hole of the through hole.