A lever-type sleeve structure without a physical pivot.

Abstract

This utility model discloses a lever-type tube sleeve structure without a solid pivot for fixing to a pipe fitting. It comprises: a tube sleeve having 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; a headed screw including a screw head and a screw rod; a nut; and a first lever with a first rotating end and a first operating end at both ends. The first rotating end has a first pressing portion, a first fastener receiving portion, a first movable hole, and a fastener inlet. The inner walls on both sides of the first movable hole are respectively provided with first included-angle steps, the two sides of which correspond to a first locking position and a first loosening position. A portion of the pipe fitting is located in the pipe fitting receiving portion. When the first operating end is in the locking position, the first pressing portion presses against the extension portion, the notches are close to each other, and the tube sleeve and pipe fitting are fixed together. When the first operating end is in the loosening position, the tube sleeve and pipe fitting can move relative to each other.

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 without a solid pivot. Background Technology

[0002] Existing lever-type sleeve structures typically have a solid shaft as the pivot point for rotation. Rotating the lever locks or releases the tube. For example, in clamp-type sleeves used in telescopic tubes, the solid shaft might be a pin. Using an eccentric structure, a horizontal rod positioned across the opening remains stationary. One end of the horizontal rod is connected to the lever by a pin. The lever and horizontal rod can rotate relative to each other around the pin. The end of the lever near the horizontal rod is elliptical in shape. When the lever is rotated to the locked position, the major axis of the ellipse (the pressure point) pushes against the sleeve, narrowing the opening and clamping the inner tube. Conversely, when the lever is rotated to the released position, the major axis moves away from the sleeve, eliminating the pressure and widening the opening, allowing the sleeve to release the inner tube. However, with prolonged use, this pin-type lever can cause the pin to gradually detach from the lever or horizontal rod, leading to structural instability. If the pin is not promptly reset, it may fall off, causing the lever and horizontal rod to disintegrate. Utility Model Content

[0003] To overcome the problem of existing lever-type tube sleeve structures where the solid rotating shaft part falls off, leading to structural disintegration, this utility model provides a lever-type tube sleeve structure without a solid rotating shaft. The headed screw is located inside the first fastener receiving part, and the screw head hangs on the first included-angle step. The headed screw and the first lever will not detach from each other. The screw rod passes through the first movable hole and the two through holes and is locked with the nut. A part of the tube fitting is located inside the tube fitting receiving part. When the first operating end is in the locked state, the screw head is in the first locked position, and the relative position of the screw rod and the first movable hole is in the locked state. The first pressing part abuts against the extension part, and the extension parts on both sides of the notch are close to each other. The tube sleeve and the tube fitting are fixed to each other. When the screw head is in the first relaxed position, the tube and the tube fitting can move relative to each other. This utility model utilizes the first lever to make the screw head swing between the first locked position and the first relaxed position, so as to achieve the clamping or loosening of the pipe fitting by the sleeve. The first lever rotates around a virtual axis, unlike existing levers that rotate around a physical axis such as a pin.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a lever-type sleeve structure without a physical rotating shaft, which can be used to fix a pipe fitting, characterized in that: a sleeve has a pipe fitting receiving part and a notch, the sleeve extends outward along both sides of the notch with two corresponding extension parts, each extension part having a through hole; a headed screw including a screw head and a screw rod; a nut; a first lever, the first lever having a first rotating end and a first operating end at both ends, the first rotating end having a first pressing part, a first fastener receiving part, two first included-angle steps, a first movable hole and a first fastener inlet, the first fastener receiving part being connected to the first movable hole and the first fastener inlet respectively, the first movable hole being able to accommodate the screw rod, the inner walls on both sides of the first movable hole being respectively provided with the first included-angle steps, the two sides of the first included-angle steps corresponding to a first locking position and a first loosening position respectively; and wherein, through the first fastener At the entrance, the headed screw is located within the first fastener receiving portion, the screw head hangs on the first included-angle step, the headed screw and the first buckle will not disengage, the screw rod passes through the first movable hole and the two through holes and is locked with the nut, a portion of the pipe fitting is located within the pipe fitting receiving portion; wherein, when the first operating end is in the locked state, the screw head is in the first locked position, the relative position of the screw rod and the first movable hole is in the locked state position, the first pressing part abuts against the extension part, the extension parts on both sides of the notch are close to each other, and the sleeve and the pipe fitting are fixed to each other; wherein, when the first operating end is in the relaxed state, the screw head is in the first relaxed position, the relative position of the screw rod and the first movable hole is in the relaxed state position, the first pressing part disengages from the extension part, the extension parts on both sides of the notch are far apart, and the sleeve and the pipe fitting are movable relative to each other.

[0005] Preferably, the headed screw and the nut are interchanged.

[0006] The beneficial effect of this utility model is that by turning the first lever, the screw head swings between the first locking position and the first loosening position, so as to achieve the clamping or loosening of the pipe fitting by the sleeve. The first lever rotates around a virtual axis, unlike existing levers that rotate around a physical axis such as a pin. This utility model can reduce the use of physical shaft parts, reduce assembly time, increase production efficiency, and avoid the problem of physical shaft parts falling off and causing structural disintegration. Attached Figure Description

[0007] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0008] Figure 1A This is a locking diagram of Embodiment 1 of the present invention;

[0009] Figure 1B This is a schematic diagram illustrating the relaxation process of Embodiment 1 of this utility model;

[0010] Figure 2 This is an exploded view of Embodiment 1 of the present invention;

[0011] Figure 3A This is an enlarged schematic diagram of the first angle of the first latch in Embodiment 1 of this utility model;

[0012] Figure 3B This is an enlarged schematic diagram of the second angle of the first buckle in Embodiment 1 of this utility model;

[0013] Figure 4A This is a schematic diagram of the side locking mechanism in Embodiment 1 of this utility model;

[0014] Figure 4B This is a side view of the first embodiment of the present invention.

[0015] Figure 5A This is a top-view diagram illustrating the locking mechanism of Embodiment 1 of this utility model;

[0016] Figure 5B This is a top-view diagram illustrating the relaxation of a first embodiment of the present invention.

[0017] Figure 6A This is Embodiment 1 of the present utility model. Figure 5A A cross-sectional view along line AA;

[0018] Figure 6B This is Embodiment 1 of the present utility model. Figure 5B A cross-sectional view along line BB;

[0019] Figure 7 This is an exploded view of Embodiment 2 of the present invention;

[0020] Figure 8 This is a locking diagram of Embodiment 3 of the present invention;

[0021] Figure 9A This is an enlarged schematic diagram of the first angle of the second latch in Embodiment 4 of this utility model;

[0022] Figure 9B This is an enlarged schematic diagram of the second angle of the second latch in Embodiment 4 of this utility model;

[0023] Figure 9CThis is an enlarged schematic diagram of the third angle of the second latch in Embodiment 4 of this utility model;

[0024] The reference numerals in the attached figures are explained as follows:

[0025] 1. Pipe fittings

[0026] 2. Pipe sleeve

[0027] 21 Pipe fitting receiving section

[0028] 22 gaps

[0029] 23 Extension

[0030] 231 Through Hole

[0031] 3. Headed screws

[0032] 31 Screw head

[0033] 32 screw

[0034] 4 nuts

[0035] 5 First buckle

[0036] 51 First Rotating End

[0037] 511 First Suppression Division

[0038] 512 First Fastener Receiving Section

[0039] 513 First included angle step

[0040] 5131 First locking position

[0041] 5132 First Relaxation Position

[0042] 514 First movable hole

[0043] 515 First Fastener Entry Point

[0044] 52 First Operation Terminal

[0045] 6. External pipe fittings

[0046] 7. Outer sleeve

[0047] 8 Second buckle

[0048] 81 Second Rotating End

[0049] 811 Second Suppression Division

[0050] 812 Second Fastener Receiving Section

[0051] 813 Second included angle step

[0052] 8131 Second locking position

[0053] 8132 Second Relaxation Position

[0054] 814 Second movable hole

[0055] 815 Second Fastener Inlet

[0056] 82 Second Operation Terminal Detailed Implementation

[0057] The following is based on Figures 1A to 9C 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.

[0058] like Figures 1A to 6B As shown, this is a lever-type sleeve structure without a solid pivot according to Embodiment 1 of this utility model, which can be used to fix a pipe fitting 1, such as... Figure 1A and Figure 1B Its characteristic is: a tube sleeve 2, such as Figures 2 to 3B The sleeve 2 has a fitting receiving portion 21 and a notch 22. Two corresponding extension portions 23 extend outwards from both sides of the notch 22, each extension portion 23 having a through hole 231; a headed screw 3, including a screw head 31 and a screw rod 32; a nut 4; and a first buckle 5, as shown. Figure 3A and Figure 3B The first latch 5 has a first rotating end 51 and a first operating end 52 at both ends. The first rotating end 51 has a first pressing part 511, a first fastener receiving part 512, two first included-angle steps 513, a first movable hole 514, and a first fastener inlet 515. The first fastener receiving part 512 is connected to the first movable hole 514 and the first fastener inlet 515 respectively. The first movable hole 514 can accommodate the screw 32. The inner walls on both sides of the first movable hole 514 are respectively provided with the first included-angle steps 513. The two sides of the first included-angle steps 513 correspond to a first locking position 5131 and a first loosening position 5132 respectively; and wherein, as Figures 4A to 6B Through the first fastener inlet 515, the headed screw 3 is located within the first fastener receiving portion 512, the screw head 31 is hooked on the first included-angle step 513, the headed screw 3 and the first buckle 5 will not disengage, the screw rod 32 passes through the first movable hole 514 and the two through holes 231 and is locked with the nut 4, a portion of the pipe fitting 1 is located within the pipe fitting receiving portion 21; wherein, when the first operating end 52 is in the locked state, such as Figure 6A The screw head 31 is located in the first locking position 5131, the screw 32 and the first movable hole 514 are in a locked position, the first pressing part 511 presses against the extension part 23, and the extension parts 23 on both sides of the notch 22 move closer to each other, and the sleeve 2 and the fitting 1 are fixed to each other; wherein, when the first operating end 52 is in the relaxed state, such as Figure 6B The screw head 31 is located in the first relaxed position 5132, the screw 32 and the first movable hole 514 are in a relaxed state, the first pressing part 511 is disengaged from the extension part 23, and the extension parts 23 on both sides of the notch 22 move away from each other, allowing the sleeve 2 and the fitting 1 to move relative to each other. The main purpose of this invention is to use the first latch 5 to make the screw head 31 swing between the first locking position 5131 and the first relaxed position 5132, so that the sleeve 2 and the fitting 1 can be fixed to each other or move relative to each other. The first latch 5 rotates around a virtual axis, unlike existing latches that rotate around a solid axis such as a pin.

[0059] like Figure 7As shown, in Embodiment 2 of this utility model, the headed screw 3 and the nut 4 of Embodiment 1 are interchanged. The nut 4 is located inside the first fastener receiving part 512 and is hung on the first included-angle step 513. The nut 4 and the first buckle 5 will not detach from each other. The screw 32 passes through the two through holes 231 and the first movable hole 514 and is locked with the nut 4. A part of the pipe fitting 1 is located inside the pipe fitting receiving part 21. When the first operating end 52 is in the locked state, the nut 4 is in the first locked position 5131. The screw 32 and the... The first movable hole 514 is in a locked position, the first pressing part 511 abuts against the extension part 23, the extension parts 23 on both sides of the notch 22 are close to each other, the sleeve 2 and the fitting 1 are fixed to each other. When the first operating end 52 is in a relaxed state, the nut 4 is in the first relaxed position 5132, the screw 32 and the first movable hole 514 are in a relaxed position, the first pressing part 511 disengages from the extension part 23, the extension parts 23 on both sides of the notch 22 move away from each other, and the sleeve 2 and the fitting 1 can move relative to each other. This embodiment illustrates that the nut 4 can also be provided inside the first fastener receiving part 512. By turning the first buckle 5, the nut 4 swings between the first locked position 5131 and the first relaxed position 5132, achieving the effect that the sleeve 2 and the fitting 1 can be fixed to each other or move relative to each other.

[0060] like Figure 2 and Figure 7As shown, the headed screw 3 and nut 4 in Embodiments 1 and 2 of this utility model are used for the mutual connection of the sleeve 2 and the first latch 5. That is, the first latch 5 and the two extensions 23 are connected in series by the screw rod 32, the screw heads 31 at both ends, and the nut 4. The two ends of the screw rod 32 can be hooked onto the first included-angle step 513 and the through hole 231, respectively, and the tightness is controlled by the distance between the screw head 31 and the nut 4. Therefore, other parts with the same or similar functions as the screw head 31, the screw rod 32, and the nut 4 can be selected as substitutes, and it is not limited to the use of this utility model. The headed screw 3 and nut 4 described in this utility model are cost-effective and readily available, making them a preferred implementation. Unlike other existing buckles, they do not require custom-made special parts. Furthermore, the nut 4 and screw head 31 are hexagonal in shape, which is only one implementation method. They can also be other shapes, such as square, flat, round, polygonal, or others. The shape of the nut and screw head is not limited. The screw rod 32 is not limited to a cylindrical shape; it can be a strip of other shapes. Threads are not necessary but are determined by the way the substitute parts for the nut 4 and the screw rod 32 are joined.

[0061] like Figure 8 As shown, in Embodiment 3 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 6 and the outer tube sleeve 7 are fixed to each other. When the first operating end 52 is in the locked state, the screw head 31 is in the first locked position 5131, the first pressing part 511 abuts against the extension part 23, and the extension parts 23 on both sides of the notch 22 are close to each other. The tube 1 and the outer tube 6 are fixed to each other. When the first operating end 52 is in the relaxed state, the screw head 31 is in the first relaxed position 5132, the first pressing part 511 is away from the extension part 23, and the extension parts 23 on both sides of the notch 22 are far from each other. The tube 1 and the outer tube 6 can move relative to each other.

[0062] like Figure 2As shown, 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 first buckle 5, the pipe sleeve 2 can be fixed to other objects or other shapes of pipe fittings or can move relative to each other.

[0063] like Figure 3A , Figure 3B and Figures 9A to 9C As shown, these are Embodiment 1 and Embodiment 4 of this utility model. Figure 3B In Embodiment 1, the first movable hole 514 and the first fastener inlet 515 are located close to and connected on the first buckle 5. Other embodiments exist, such as setting the first movable hole 514 and the first fastener inlet 515 to the same hole position, or as... Figures 9A to 9C The second buckle 8 has a second rotating end 81 and a second operating end 82 at both ends. The second rotating end 81 has a second pressing part 811, a second fastener receiving part 812, two second included-angle steps 813, a second movable hole 814 and a second fastener inlet 815. The second buckle 8 sets the second movable hole 814 and the second fastener inlet 815 on opposite surfaces and they pass through each other. The second pressing part 811 and the second movable hole 814 are set on the same side. The second fastener receiving part 812 and the second included-angle steps 813 and the second fastener inlet 815 are set on the same side. The above description is only an illustration of different embodiments and does not limit their relative positional relationship. The first fastener inlet 515 and the second fastener inlet 515 are channels for setting the screw head 31 or the nut 4.

[0064] The screw 32 of this utility model passes through the two through holes 231 and is locked with the nut 4. The tightness can be adjusted by using the head screw 3 and the nut 4 according to the required reduction of the notch 22.

[0065] 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 without a solid pivot, 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 from both sides of the notch, each extension portion having a through hole; and A headed screw, comprising a screw head and a screw rod; One nut; A first latch, wherein the first latch has a first rotating end and a first operating end at both ends. The first rotating end has a first pressing part, a first fastener receiving part, two first included-angle steps, a first movable hole, and a first fastener inlet. The first fastener receiving part is connected to the first movable hole and the first fastener inlet respectively. The first movable hole can accommodate the screw. The inner walls on both sides of the first movable hole are respectively provided with the first included-angle steps. The two sides of the first included-angle steps correspond to a first locking position and a first loosening position respectively. Among them, through the first fastener inlet, the headed screw is located in the first fastener receiving part, the screw head is hung on the first included step, the headed screw and the first buckle will not disengage from each other, the screw rod passes through the first movable hole and the two through holes and is locked with the nut, and a part of the pipe is located in the pipe receiving part. When the first operating end is in the locked state, the screw head is in the first locked position, the screw and the first movable hole are in the locked position, the first pressing part presses against the extension part, the extension parts on both sides of the notch are close to each other, and the sleeve and the fitting are fixed to each other. When the first operating end is in the relaxed state, the screw head is in the first relaxed position, the screw and the first movable hole are in the relaxed position, the first pressing part is disengaged from the extension part, the extension parts on both sides of the notch are far apart from each other, and the sleeve and the fitting are movable relative to each other.

2. The lever-type sleeve structure without a solid rotating shaft according to claim 1, characterized in that... The headed screw and the nut are interchanged.

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