A lever-type sleeve structure with a solid shaft

Abstract

This utility model relates to a buckle-type tube sleeve structure with a solid shaft, which can be used to fix a pipe fitting. Its features include: a tube sleeve with a pipe fitting receiving portion and a notch; two corresponding extension portions extending outward from both sides of the notch, each extension portion having a through hole; one extension portion having a receiving groove recessed on its outer side; a bottom and a pressing slope; a transverse shaft; a solid shaft; a buckle with a rotating end and an operating end at both ends; the rotating end having a pressing part and a shaft hole; wherein the transverse shaft passes through the two through holes, one end of which is fixed to the extension portion outside the through hole, and the other end is engaged with the buckle, and can rotate about the solid shaft; the pressing part is located in the receiving groove; a portion of the pipe fitting is located in the receiving portion; wherein, when the operating end is in the locked state, the pressing part is located away from the notch to press against the pressing slope; the two sides of the notch are close to each other, and the tube sleeve and the pipe fitting are fixed together.

Description

Technical Field

[0001] This utility model relates to a snap-on tube sleeve structure, and more particularly to a snap-on tube sleeve structure with a solid shaft. Background Technology

[0002] Existing lever-type sleeve structures typically have one opening and two extended walls. The outer side of one of these extended walls is the area pressed by the lever, which can be curved or flat. Regardless of its shape, the lever is rotated from the relaxed to the locked state by moving the pressing part of the lever from the position away from the opening towards the position closer to the opening. The lever is rotated around a solid shaft as its axis of rotation to achieve the locking or unlocking purpose. For example, in clamp-type sleeves used in telescopic tubes, the solid shaft, such as a pin, uses an eccentric structure and is placed horizontally across the opening. The lever does not swing. One end of the horizontal lever is connected to the lever by a pin. The lever and the horizontal lever can rotate relative to each other around the pin. The end of the lever near the horizontal lever is elliptical in shape. When the lever is rotated to the locked position, the major axis of the ellipse, i.e., the pressure point, moves towards the opening and pushes against the sleeve, causing the opening to narrow and the sleeve to clamp the inner tube. Conversely, when the lever is rotated to the unlocked position, the major axis of the ellipse, i.e., the pressure point, moves away from the opening and away from the sleeve. At this point, the force of the pressure point against the sleeve disappears, causing the opening to widen and the sleeve to loosen the inner tube. This method relies entirely on the distance between the pressure point and the axis to determine the degree of opening variation. If it is used in situations where the degree of opening variation is large, the distance between the pressure point and the axis needs to be increased. This requires lengthening the opening extension wall and the horizontal lever so that the pressure point of the lever has sufficient rotation space, thus increasing the overall outer dimensions of the sleeve. Utility Model Content

[0003] To overcome the problem of large external dimensions in existing lever-type sleeve structures, this invention provides a lever-type sleeve structure with a solid shaft. The pressing part enters the receiving groove, and the pipe fitting is inserted into the pipe fitting receiving part. By rotating the operating end, the pressing part moves away from the notch to press against the pressing slope, thus reducing the notch and clamping the pipe fitting tightly so that they cannot slide against each other. Conversely, by rotating the operating end, the pressing part moves closer to the notch to loosen the pressing slope, thus increasing the notch and allowing the pipe fitting to slide against each other. By setting the receiving groove and the pressing slope in this invention, the length of the extension and the headed screw can be shortened. The pressing slope can significantly increase the variation range of the notch. Therefore, if the variation range of the notch is the same, the sleeve structure of this invention only requires rotating the lever by a small angle, while the existing clamping structure requires rotating the existing lever by a large angle. Furthermore, the movement direction of the pressing part relative to the notch is exactly opposite to that of the existing clamping structure.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a buckle-type tube sleeve structure with a solid shaft, which can be used to fix a pipe fitting, characterized in that: a tube sleeve having a pipe fitting receiving part and a notch, the tube sleeve having two corresponding extension parts extending outward along both sides of the notch, each extension part having a through hole, and a receiving groove recessed on the outer side of one of the extension parts having a bottom and a pressing slope; a transverse shaft; a solid shaft; a buckle, the buckle having a rotating end and an operating end at both ends, the rotating end having a pressing part and a shaft hole; and wherein the transverse shaft passes through the two through holes, one end of which is fixed to the extension part outside the through hole, and the other end is engaged with the buckle. The solid shaft is located within the shaft hole. The buckle is connected to the transverse shaft and can rotate relative to each other around the solid shaft. The pressing part is located within the receiving groove, close to or in contact with the bottom. A portion of the pipe fitting is located within the pipe fitting receiving part. When the operating end is in the locked state, the pressing part is located away from the notch to press against the pressing slope. The extensions on both sides of the notch are close to each other. The sleeve and the pipe fitting are fixed to each other. When the operating end is in the relaxed state, the pressing part is located close to the notch to relax the pressing slope. The extensions on both sides of the notch are far apart. The sleeve and the pipe fitting are movable relative to each other.

[0005] The beneficial effect of this utility model is that by using the accommodating groove to accommodate the pressing part, the space required for the rotating end to rotate is greatly reduced. Only a small angle is needed to turn the buckle, and the size of the notch will change significantly. Attached Figure Description

[0006] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0007] Figure 1A This is a locking diagram of Embodiment 1 of the present invention;

[0008] Figure 1B This is a schematic diagram illustrating the relaxation process of Embodiment 1 of this utility model;

[0009] Figure 2 This is an exploded view of Embodiment 1 of the present invention;

[0010] Figure 3 This is an enlarged schematic diagram of the sleeve according to Embodiment 1 of this utility model;

[0011] Figure 4A This is a schematic diagram of the side locking mechanism in Embodiment 1 of this utility model;

[0012] Figure 4B This is a side view of the first embodiment of the present invention.

[0013] Figure 5A This is a top-view diagram illustrating the locking mechanism of Embodiment 1 of this utility model;

[0014] Figure 5B This is a top-view diagram illustrating the relaxation of a first embodiment of the present invention.

[0015] Figure 6A This is Embodiment 1 of the present utility model. Figure 4A A cross-sectional view along line AA;

[0016] Figure 6B This is Embodiment 1 of the present utility model. Figure 4B A cross-sectional view along line BB;

[0017] Figure 7 This is a locking diagram of Embodiment 2 of the present invention;

[0018] The reference numerals in the attached figures are explained as follows:

[0019] 1. Pipe fittings

[0020] 2. Pipe sleeve

[0021] 21 Pipe fitting receiving section

[0022] 22 gaps

[0023] 23 Extension

[0024] 231 Through Hole

[0025] 232 Receptacle

[0026] 2321 Bottom

[0027] 2322 Suppressing Slope

[0028] 3. Horizontal axis

[0029] 31 Nuts

[0030] 4 solid axes

[0031] 5. Buckle

[0032] 51 Rotating end

[0033] 511 Pressing Department

[0034] 512 shaft hole

[0035] 52 Operating Terminal

[0036] 6. External pipe fittings

[0037] 7. Outer sleeve Detailed Implementation

[0038] The following is based on Figures 1A to 7 This description illustrates one embodiment of the present invention. This description is not intended to limit the implementation of the present invention, but rather to represent one possible embodiment.

[0039] like Figures 1A to 6BThe diagram illustrates a lever-type sleeve structure with a solid shaft according to Embodiment 1 of this utility model, which can be used to fix a pipe fitting 1. The structure is characterized by: a sleeve 2 having a pipe fitting receiving portion 21 and a notch 22; two corresponding extension portions 23 extending outwards from both sides of the notch 22; each extension portion 23 having a through hole 231; one of the extension portions 23 having a recessed receiving groove 232 on its outer side; the receiving groove 232 having a bottom 2321 and a pressing ramp 2322; a transverse shaft 3; a solid shaft 4; and a lever 5, the lever having a rotating end 51 and an operating end 52 at both ends; the rotating end 51 having a pressing portion 511 and a shaft hole 512; wherein the transverse shaft 3 penetrates both through holes 231, with one end fixed to the extension portion 23 outside the through hole 231, and the other end engaging with the lever 5. The solid shaft 4 is located within the shaft hole 512. The buckle 5 is connected to the transverse shaft 3 and can rotate relative to each other with the solid shaft 4 as the axis. The pressing part 511 is located within the receiving groove 232, close to or in contact with the bottom 2321. A portion of the pipe fitting 1 is located within the pipe fitting receiving part 21. When the operating end 52 is in the locked state, the pressing part 511 is located away from the notch 22 to press against the pressing ramp 2322. The extensions 23 on both sides of the notch 22 are close to each other. The sleeve 2 and the pipe fitting 1 are fixed to each other. When the operating end 52 is in the relaxed state, the pressing part 511 is located close to the notch 22 to relax the pressing ramp 2322. The extensions 23 on both sides of the notch 22 are far apart. The sleeve 2 and the pipe fitting 1 can move relative to each other. This invention utilizes the accommodating groove 232 and the pressing ramp 2322 to shorten the length of the extension 23 and the transverse shaft 3. The pressing ramp 2322 can significantly increase the variation range of the notch 22. Therefore, if the variation range of the notch 22 is the same, the sleeve structure of this invention only needs to rotate the buckle 5 by a small angle, while the existing sleeve structure requires rotating the existing buckle by a large angle. Furthermore, the direction of movement of the pressing part 511 relative to the notch 22 is exactly opposite to that of the existing sleeve structure.

[0040] like Figure 3 , Figure 6A and Figure 6BAs shown, the receiving groove 232 of the present invention has a bottom 2321 and a pressing slope 2322. When the sleeve 2 and the fitting 1 are movable relative to each other, the pressing part 511 is located in the receiving groove 232, close to or in contact with the bottom 2321. That is, the pressing part 511 is already facing the notch 22. Therefore, the length of the pressing part 511 is not limited by the length of the extension part 23. When the fitting 1 is locked, it is only necessary to rotate the pressing part 511 by a small angle to press against the pressing slope 2322. There is no need for a large angle of rotation. Moreover, the slope of the pressing slope 2322 can have different shapes, such as a flat slope, a concave slope, a convex slope, or a stepped slope.

[0041] like Figure 2 As shown, in Embodiment 1 of this utility model, a nut 31 is provided. The outer diameter of the nut 31 is larger than the diameter of the through hole. The transverse shaft 3 passes through both through holes 231, and one end of the nut 31 is fixed to the extension 23 outside the through hole 231. The purpose is to allow the transverse shaft 3 to be fixed at one end outside the through hole 231 through the nut 31. Therefore, the nut 31 is only one embodiment, and other parts with the same function can be used instead. For example, a head is provided at one end of the transverse shaft 3, and the outer diameter of the head is larger than the diameter of the through hole 231, which has the same effect as the nut 31 being connected to the transverse shaft 3.

[0042] like Figure 7 As shown, in Embodiment 2 of this utility model, there is an outer tube 6 and an outer tube sleeve 7. The outer tube 6 is sleeved on the outside of the tube 1 to form a telescopic tube with gaps between them. The outer tube sleeve 7 is connected to the tube sleeve 2, and the outer tube 6 and the outer tube sleeve 7 are fixed to each other. When the operating end 52 is in the locked state, the pressing part 511 abuts against the pressing slope 2322, and the extensions 23 on both sides of the notch 22 are close to each other, and the tube 1 and the outer tube 6 are fixed to each other. When the operating end 52 is in the relaxed state, the pressing part 511 disengages from the pressing slope 2322, and the extensions 23 on both sides of the notch 22 move away from each other, and the tube 1 and the outer tube 6 can move relative to each other. The form of the outer tube sleeve 7 in this embodiment is only one implementation method and is not a limitation on the form of the outer tube sleeve.

[0043] As shown in Figure 4, the pipe fitting 1 of this utility model is circular. The pipe fitting 1 can be replaced with other shapes of pipe fittings, such as square or triangular, or other objects, such as sheet-shaped, L-shaped or arc-shaped objects. The pipe fitting receiving part 21 can be replaced with the corresponding shape so that other objects or other shapes of pipe fittings can be placed in the pipe fitting receiving part 21. By rotating the buckle 5, the pipe sleeve 2 can be made to be either non-slidable or slidable with other objects or other shapes of pipe fittings.

[0044] The above description and explanation are merely illustrative of preferred embodiments of the present utility model. Those skilled in the art may make other modifications based on the following defined scope of the patent application and the above description, but such modifications should still be included within the scope of the present utility model and in the spirit of its creation.

Claims

1. A lever-type pipe sleeve structure with a solid shaft, which can be used to fix a pipe fitting, characterized in that: A sleeve having a fitting receiving portion and a notch, the sleeve having two corresponding extension portions extending outward along both sides of the notch, each extension portion having a through hole, and one of the extension portions having a receiving groove recessed on its outer side, the receiving groove having a bottom and a pressing slope. A horizontal axis; One solid axis; A lever, wherein the lever has a rotating end and an operating end at both ends, and the rotating end has a pressing part and a shaft hole; and in, The transverse shaft passes through the two through holes, one end of which is fixed to the extension outside the through hole, and the other end is engaged with the buckle. The solid shaft is located in the shaft hole, and the buckle and the transverse shaft are connected together and can rotate about the solid shaft. The pressing part is located in the receiving groove, in contact with or close to the bottom, and a part of the pipe is located in the pipe receiving part. When the operating end is in the locked state, the pressing part is located away from the notch to support the pressing slope, the extensions on both sides of the notch are close to each other, and the sleeve and the fitting are fixed to each other. When the operating end is in the relaxed state, the pressing part is located near the notch to disengage from the pressing slope, the extensions on both sides of the notch are far apart, and the sleeve and the fitting are movable relative to each other.

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