Connecting device capable of conveniently locking tubular object

Abstract

The utility model discloses a connecting device for conveniently locking tubular objects, which comprises a tube body tightening mechanism and a ring sleeve, the ring sleeve is sleeved outside the tube body tightening mechanism and is in clearance fit with the tube body tightening mechanism, a plurality of steel ball grooves are arranged on the outer side surface of the tube body tightening mechanism, and steel balls are rotatably arranged in the steel ball grooves. Compared with the prior art, the locking device has the advantages that the defects of an existing product can be overcome, a rotating space is not needed, the locking function can be achieved by pushing the ring sleeve, and the locking device is convenient to use, high in practicability and high in practicability. And the locking force is balanced and is not influenced by human factors, no special-shaped bulge exists outside, the locking device can be applied to various products in the field of consumer-grade industrial products, the appearance design is convenient, the appearance design is more attractive and convenient, the locking and the loosening are very easy, and the locking and the loosening actions can be completed within one second.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe connection devices, in particular to a connection device for conveniently locking a tubular object. Background Art

[0002] Tubular objects are widely used in light industrial products, such as telescopic mop rods, selfie sticks, T-shaped pipe fittings for furniture, etc. There are many ways to connect these tubular objects, such as external locking connectors that use eccentric shaft principles or bolts for locking, components that are simply locked by screws, components that are locked by punching and limiting, and components that are locked by rotation. The above types are widely used, but each has different defects:

[0003] External locking type: Using the eccentric shaft principle, the handle is turned to compress the object to be clamped inside to achieve the locking function. The disadvantage is that the locking device requires external rotation space and the surface is irregularly raised.

[0004] External locking type: The locking function is achieved by turning the screw to compress the object to be clamped inside. The disadvantage is that the screw handle needs to be rotated repeatedly when locking and loosening, the locking device requires external rotation space, and the surface is irregularly raised.

[0005] Screw locking type: The advantage is that it is sufficiently tight and has a good overall appearance. The disadvantage is that it requires the use of external tools and needs to be matched with special profiles.

[0006] Punching limit locking type: mostly used for telescopic rods. The advantage is that it does not require any external components. The disadvantage is that the telescopic position is fixed and the lateral force on the rod is weakened after punching.

[0007] Rotational locking type: The principle is to rotate the external fastener to compress the internal tube body to deform to achieve the locking function. The inner wall of the external fastener is conical. The disadvantage of this type of product is that the tightness is affected by the rotational force. If the force is small, it will not be fixed tightly, and if the force is too large, it will be difficult to loosen. Utility Model Content

[0008] In order to solve the above-mentioned problems, the utility model provides a connecting device for conveniently locking a tubular object.

[0009] In order to solve the above technical problems, the technical solution of the utility model is: a connecting device for conveniently locking tubular objects, including a tube body tightening mechanism and a ring sleeve, the ring sleeve is arranged outside the tube body tightening mechanism and the two are clearance-matched, the outer side surface of the tube body tightening mechanism is provided with a plurality of steel ball grooves, steel balls are rotatably arranged inside the steel ball grooves, the inner side wall of the ring sleeve is provided with a track groove corresponding to the position of the steel ball, the track groove is conical and the diameter gradually decreases from top to bottom, and a loose switch is provided at the upper end of the ring sleeve.

[0010] Furthermore, the tube tightening mechanism comprises a sleeve, and the sleeve is plugged into the tubular object to be locked.

[0011] Furthermore, a plurality of compression deformation slits are provided at the upper end of the sleeve.

[0012] Furthermore, a loosening limit column is fixedly provided on the inner side wall of the ring sleeve, and the loosening limit column is matched and clamped with one of the compression deformation seams.

[0013] Furthermore, the tube body tightening mechanism comprises a tubular clamp, and a tubular connecting portion is integrally formed at the lower end of the tubular clamp, and the tubular connecting portion is inserted into the ring sleeve and is gap-matched with the ring sleeve.

[0014] Furthermore, movable grooves are provided at symmetrical positions on the upper end of the ring sleeve, the release switch is rotatably arranged inside the movable groove, and a spring is provided on one side of the bottom of the release switch close to the ring sleeve.

[0015] Compared with the prior art, the utility model has the following advantages: the technical principle adopted by the present invention is to use the force of pushing the locking device to compress the internal structure to achieve the locking function. The steel ball is fixed inside. When the ring sleeve is pushed, the conical track groove on the inner wall of the device compresses the steel ball to make a directional movement. The higher the pressure on the steel ball, the greater the pressure on the steel ball, so that the inner wall of the fixed steel ball is deformed and tightened inward. When the set pressure value is reached, the loosening switch on the device is automatically buckled, and the entire locking action is completed. When loosening, press the loosening switch, the ring sleeve automatically slides down, and the loosening limit column inside the ring sleeve stops sliding when it reaches the limited position. The present invention can solve the defects of existing products. There is no need for rotating space. The locking function can be achieved by pushing the ring sleeve, and the locking force is balanced and is not affected by human factors. There is no special-shaped protrusion on the outside. It can be applied to many types of products in the field of consumer-grade industrial products, which is convenient for appearance design and can be more beautiful and convenient. Locking and loosening are very easy, and the locking and loosening actions can be completed within one second. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the utility model.

[0017] Figure 2 It is a structural schematic diagram of the connection between the sleeve and the tubular object in Example 1 of the utility model.

[0018] Figure 3 It is a structural schematic diagram of the ring sleeve of Example 1 of the utility model.

[0019] Figure 4 This is a schematic diagram of the overall structure of the second embodiment of the present utility model. Figure 1 .

[0020] Figure 5 This is a schematic diagram of the overall structure of the second embodiment of the present utility model. Figure 2 .

[0021] As shown in the figure: 1. Sleeve; 2. Ring; 3. Steel ball; 4. Track groove; 5. Loose switch; 6. Movable groove; 7. Spring; 8. Compression deformation joint; 9. Loose limit column; 10. Tubular clamp; 11. Tubular connecting part; 12. Tubular object; 13. Deformation joint. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside", "center", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction structure and operation. Therefore, they should not be understood as limitations on the present invention.

[0023] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "provided with", "installed", "connected", "connected" and the like 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, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and 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.

[0024] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0025] Example 1

[0026] Combined with Figure 1 To Attachment Figure 3 A connecting device for conveniently locking a tubular object comprises a tube tightening mechanism and a ring sleeve 2, wherein the ring sleeve 2 is sleeved on the outside of the tube tightening mechanism and the two are clearance-matched, a plurality of steel ball grooves are arranged on the outer side of the tube tightening mechanism, steel balls 3 are rotatably arranged inside the steel ball grooves, a track groove 4 is arranged on the inner side wall of the ring sleeve 2 corresponding to the position of the steel balls 3, the track groove 4 is tapered and the diameter gradually decreases from top to bottom, and a loose switch 5 is arranged on the upper end of the ring sleeve 2.

[0027] The tube tightening mechanism includes a sleeve 1, which is plugged into the tubular object to be locked. A plurality of compression deformation slits 8 are provided at the upper end of the sleeve 1. A loosening limit column 9 is fixedly provided on the inner wall of the ring sleeve 2. The loosening limit column 9 is matched and clamped with one of the compression deformation slits 8.

[0028] Movable grooves 6 are provided at symmetrical positions on the upper end of the ring sleeve 2 , and the release switch 5 is rotatably arranged inside the movable groove 6 . A spring 7 is provided on one side of the bottom of the release switch 5 close to the ring sleeve 2 .

[0029] Specific implementation method of this embodiment: When this embodiment is used on a telescopic rod, the sleeve 1 is installed at the end of the tube body and is fixed on the tube body with a large diameter. Then, one end of the tubular object 12 with a small diameter extends into the other end of the sleeve 1, and the ring sleeve 2 is pushed upward along the sleeve 1. The steel ball 3 is stuck in the corresponding track groove 4. As the track groove 4 changes in diameter, the steel ball 3 gradually presses the sleeve 1, causing the sleeve 1 to be squeezed inward, thereby pressing the tubular object 12 until the buckle at the upper end of the loosening switch 5 is stuck at the edge of the end of the sleeve 1, thereby achieving the purpose of locking. When releasing, press the loosening switch 5 to disengage the buckle from the edge of the end of the sleeve 1, and then push the ring sleeve 2 downward. As the pressure of the steel ball 3 is released, the sleeve 1 no longer squeezes the tubular object 12, and the tubular object 12 is loosened immediately.

[0030] Example 2

[0031] Combined with Figure 4 To Attachment Figure 5 A connecting device for conveniently locking a tubular object comprises a tube tightening mechanism and a ring sleeve 2, wherein the ring sleeve 2 is sleeved on the outside of the tube tightening mechanism and the two are clearance-matched, a plurality of steel ball grooves are arranged on the outer side of the tube tightening mechanism, steel balls 3 are rotatably arranged inside the steel ball grooves, a track groove 4 is arranged on the inner side wall of the ring sleeve 2 corresponding to the position of the steel balls 3, the track groove 4 is tapered and the diameter gradually decreases from top to bottom, and a loose switch 5 is arranged on the upper end of the ring sleeve 2.

[0032] The tube body tightening mechanism comprises a tubular clamp 10 , and a tubular connecting portion 11 is integrally formed at the lower end of the tubular clamp 10 . The tubular connecting portion 11 is inserted into the ring sleeve 2 and is in clearance fit with the ring sleeve 2 .

[0033] Movable grooves 6 are provided at symmetrical positions on the upper end of the ring sleeve 2 , and the release switch 5 is rotatably arranged inside the movable groove 6 . A spring 7 is provided on one side of the bottom of the release switch 5 close to the ring sleeve 2 .

[0034] The difference between this embodiment and the previous embodiment is that this embodiment is used for T-shaped connection between pipes, and deformation seams 13 are provided on the tubular clamp 10 and the tubular connecting portion 11 to facilitate contraction and compression during extrusion.

[0035] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A connecting device for conveniently locking a tubular object, comprising a tube tightening mechanism and a ring sleeve (2), wherein the ring sleeve (2) is sleeved outside the tube tightening mechanism and the two are clearance-matched, and characterized in that: The outer side surface of the tube body tightening mechanism is provided with a plurality of steel ball grooves, steel balls (3) are rotatably arranged inside the steel ball grooves, and the inner side wall of the ring sleeve (2) is provided with track grooves (4) at positions corresponding to the steel balls (3), the track grooves (4) are tapered and the diameter gradually decreases from top to bottom, and a loosening switch (5) is provided at the upper end of the ring sleeve (2).

2. A connecting device for conveniently locking a tubular object according to claim 1, characterized in that: The tube body tightening mechanism comprises a sleeve (1), and the sleeve (1) is plugged into a tubular object to be locked.

3. A connecting device for conveniently locking a tubular object according to claim 2, characterized in that: The upper end of the sleeve (1) is provided with a plurality of compression deformation slits (8).

4. A connecting device for conveniently locking a tubular object according to claim 3, characterized in that: A loosening limit column (9) is fixedly provided on the inner side wall of the ring sleeve (2), and the loosening limit column (9) is matched and clamped with one of the compression deformation slits (8).

5. A connecting device for conveniently locking a tubular object according to claim 1, characterized in that: The tube body tightening mechanism comprises a tubular clamp (10), the lower end of which is integrally formed with a tubular connecting portion (11), and the tubular connecting portion (11) is inserted into the annular sleeve (2) and is clearance-matched with the annular sleeve (2).

6. A connecting device for conveniently locking a tubular object according to claim 4 or 5, characterized in that: The upper end of the ring sleeve (2) is provided with movable grooves (6) at symmetrical positions, the release switch (5) is rotatably arranged inside the movable groove (6), and a spring (7) is provided on one side of the bottom of the release switch (5) close to the ring sleeve (2).

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