One-key locking telescopic pipe and tripod

Abstract

The utility model discloses a one-key locking telescopic pipe which comprises a first pipe body, a second pipe body and a third pipe body, an eccentric wheel locking mechanism is arranged on the second pipe body and is in linkage with a taper sleeve locking mechanism through a linkage rod, and the first pipe body is connected in the second pipe body in a sleeved mode and can slide in a relative telescopic mode. The third pipe body is connected outside the second pipe body in a sleeving mode and can slide in a telescopic mode relative to the second pipe body, releasing, stretching and locking of the first pipe body and the second pipe body and the second pipe body and the third pipe body can be synchronously achieved by operating an eccentric wheel pulling buckle of the eccentric wheel locking mechanism, operation is flexible, easy and convenient, and locking and opening of the telescopic pipe are convenient.

Description

Technical Field

[0001] The utility model relates to the field of pipes, and in particular to a one-key locking telescopic pipe and a tripod. Background Art

[0002] Telescopic tubes are commonly used pipe fittings on the market. Due to their telescopic properties, they can be used in various fields. The connection structure of the telescopic tube can be used to control the telescopic length of the telescopic tube.

[0003] However, the existing telescopic tube structure has a complicated locking process, is not flexible enough, and is inconvenient to operate. Summary of the invention

[0004] Technical issues solved

[0005] The utility model discloses a one-key locking telescopic tube and a tripod, which can realize one-key locking by rotating an eccentric wheel buckle, has flexible and simple operation, and is convenient for locking and opening the telescopic tube.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a one-touch locking telescopic tube, the one-touch locking telescopic tube comprises a first tube body, a second tube body and an eccentric wheel locking mechanism, the eccentric wheel locking mechanism comprises a locking block, a ring sleeve and an eccentric wheel buckle, the first tube body is sleeved in the second tube body and can be telescopically slid relative to the second tube body, a through hole adapted to the locking block is opened on the first end portion of the second tube body, the locking block passes through the through hole and abuts against the outer wall of the first tube body, the ring sleeve is sleeved and fixed on the outer wall of the first end portion of the second tube body, the eccentric wheel buckle is rotatably connected to the ring sleeve via a rotating shaft, the inner side of the eccentric wheel buckle abuts against the outer side of the locking block, and when the eccentric wheel buckle rotates around the rotating shaft, the protrusion of the eccentric wheel buckle squeezes the locking block to utilize the locking block to lock the first tube body and the second tube body.

[0008] In a possible implementation, the eccentric wheel buckle has a plurality of protrusions, and a plane matched with the outer side of the locking block is provided between every two protrusions.

[0009] In a possible implementation, the one-touch locking telescopic tube also includes a third tube body and a cone sleeve locking mechanism. The third tube body is sleeved outside the second tube body and can be telescoped relative to the second tube body. The cone sleeve locking mechanism is connected to the eccentric wheel locking mechanism through a linkage rod, so that when the eccentric wheel locking mechanism locks or releases the first tube body and the second tube body, the cone sleeve locking mechanism is driven to achieve synchronous locking or release of the second tube body and the third tube body.

[0010] In a possible implementation, the cone sleeve locking mechanism includes a cone head, a plurality of cone annular locking blocks and a locking block sleeve, the cone head is fixedly connected to the second end of the second tube body, the plurality of cone annular locking blocks matched with the shape of the cone head are arranged between the cone head and the inner wall of the third tube body, and are evenly distributed in the cone ring space between the cone head and the inner wall of the third tube body, and the tips of the cone annular locking blocks face the thick end of the cone head and are positioned by the locking block sleeve, the locking block sleeve is connected to the linkage rod, the other end of the linkage rod extends downward along the inner wall of the second tube body until the first end of the second tube body, and is connected to the linkage square sleeve of the eccentric wheel locking mechanism, and the linkage square sleeve is sleeved on the eccentric wheel buckle of the eccentric wheel Around, the multiple protrusions of the eccentric wheel buckle are respectively a first protrusion, a second protrusion and a third protrusion arranged around the circumference of the eccentric wheel buckle, and the second protrusion is arranged between the first protrusion and the third protrusion, so that the eccentric wheel buckle can be rotated, and the second protrusion and the first protrusion, or the third protrusion and the second protrusion can act on the locking block and the linkage square sleeve respectively, and while squeezing the locking block, the linkage square sleeve is synchronously squeezed to drive the linkage square sleeve to move away from the third tube body, and the linkage rod drives the locking block sleeve to force the conical ring locking block to squeeze into between the conical head and the inner wall of the third tube body, so as to lock the second tube body and the first tube body while locking the second tube body and the third tube body.

[0011] In one possible implementation, a bushing is clamped between the inner wall of the first end of the second tube body and the outer wall of the first tube body, and the bushing is provided with a through hole adapted to the locking block. The locking block passes through the through hole of the annular sleeve, the second tube body and the bushing, and abuts against the outer wall of the first tube body to position the locking block, the annular sleeve and the bushing at the end of the second tube body.

[0012] In a possible implementation, the bushing is clamped between the inner wall of the first end of the second tube body and the outer wall of the first tube body through a raised clamping ring.

[0013] In a possible implementation, a non-slip sleeve is further provided on the outer wall of the top end of the first tube body.

[0014] In a possible implementation, a wear-resistant pad is disposed at the bottom end of the first tube.

[0015] In a possible implementation, the inner side surface of the locking block is matched with the outer wall of the first tube body and is arranged in a concave arc surface.

[0016] To achieve the above object, the utility model provides another technical solution: a tripod, the tripod comprising three leg tubes, and the leg tubes are the above-mentioned one-key locking telescopic tubes.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the utility model provides a one-key locking telescopic tube, which has the following beneficial effects:

[0019] The one-touch locking telescopic tube comprises a first tube body, a second tube body and an eccentric wheel locking mechanism, wherein the eccentric wheel locking mechanism comprises a locking block, a bushing and an eccentric wheel pull buckle, wherein the first tube body is sleeved in the second tube body and can slide relatively telescopically, the locking block passes through the through hole of the second tube body and abuts against the outer wall of the first tube body, the ring sleeve is sleeved and fixed on the outer wall of the second tube body, the eccentric wheel pull buckle is connected to the ring sleeve by rotating the shaft, the inner side of the eccentric wheel pull buckle abuts against the outer side of the locking block, and when the eccentric wheel pull buckle rotates around the shaft, the protrusion of the eccentric wheel pull buckle squeezes the locking block, thereby locking the first tube body and the second tube body by using the locking block. With such a structural design, one-touch locking or unlocking can be achieved by rotating the eccentric wheel pull buckle, the operation is flexible and simple, and the locking and opening of the telescopic tube are convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the overall structure of the one-key locking telescopic tube of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the one-key locking telescopic tube of the utility model in a disassembled state;

[0023] Figure 3 It is a partial structural schematic diagram of the one-key locking telescopic tube of the utility model;

[0024] Figure 4 This utility model Figure 1 Schematic diagram of the section along section line AA;

[0025] Figure 5 This is a schematic diagram of the eccentric wheel buckle structure of the utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the cone head of the utility model;

[0027] Figure 7 It is a schematic diagram of the bushing structure of the utility model;

[0028] Figure 8 This is a schematic diagram of the locking block structure of the utility model;

[0029] Fig. 9 It is a partial cross-sectional view of the one-button locking telescopic tube in the released state;

[0030] Fig.10 It is a partial cross-sectional view of another locking state of the one-button locking telescopic tube;

[0031] Fig.11 This is a schematic diagram of the assembly of the cone sleeve locking mechanism of the utility model;

[0032] Fig.12 It is a schematic diagram of the overall structure of the tripod of the utility model.

[0033] Reference numerals:

[0034] 1. First tube body; 2. Second tube body; 3. Third tube body; 4. Locking block; 5. Bushing; 6. Ring sleeve; 7. Eccentric wheel buckle; 8. Rotating shaft; 9. Protrusion; 10. Plane; 11. Conical head; 12. Conical ring locking block; 13. Locking block sleeve; 14. Linkage rod; 15. Linkage square sleeve; 16. Anti-skid sleeve; 17. Wear-resistant foot pad; 18. Through hole; 51. Protruding snap ring; 91. First protrusion; 92. Second protrusion; 93. Third protrusion; 41. Concave arc surface; 100. Foot tube; 200. Center stabilizer; 300. Leveler. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] See also Figure 1-Figure 11 , respectively, are structural schematic diagrams of a one-touch locking telescopic tube and its components of the utility model. The one-touch locking telescopic tube according to the utility model comprises a first tube body 1, a second tube body 2 and an eccentric wheel locking mechanism, wherein the eccentric wheel locking mechanism comprises a locking block 4, a ring sleeve 6 and an eccentric wheel pull buckle 7, the first tube body 1 is sleeved in the second tube body 2 and can be telescopically slid relative to the second tube body 2, a through hole 18 adapted to the locking block 4 is provided on the first end of the second tube body 2, the locking block 4 passes through the through hole 18 and abuts against the outer wall of the first tube body 1, the ring sleeve 6 is sleeved and fixed on the outer wall of the first end of the second tube body 2, the eccentric wheel pull buckle 7 is rotatably connected to the ring sleeve 6 through a rotating shaft 8, the inner side of the eccentric wheel pull buckle 7 abuts against the outer side of the locking block 4, when the eccentric wheel pull buckle 7 rotates around the rotating shaft 8, the protrusion 9 of the eccentric wheel pull buckle 7 squeezes the locking block 4, so as to use the locking block 4 to lock the first tube body 1 and the second tube body 2.

[0037] Since the eccentric wheel pull buckle is connected to the ring sleeve by rotating the shaft, and the eccentric wheel pull buckle has a protrusion, when the eccentric wheel pull buckle rotates around the shaft, the protrusion is driven to enter the outer side of the locking block, thereby squeezing the locking block toward the first tube body, and the friction force between the locking block and the outer wall of the first tube body is gradually enhanced to lock the first tube body and the second tube body, so that the first tube body can no longer slide along the second tube body. When the eccentric wheel pull buckle rotates to drive the protrusion to disengage from the outer side of the locking block, the friction between the locking block and the first tube body disappears, the first tube body and the second tube body are unlocked and return to the telescopic state, and the first tube body returns to the state where it can slide relatively along the second tube body.

[0038] In one possible implementation, the eccentric wheel buckle 7 has a plurality of protrusions 9 , and a plane 10 adapted to the outer side of the locking block 4 is provided between every two protrusions 9 .

[0039] When the eccentric wheel pull buckle has multiple protrusions, a plane adapted to the outer side of the locking block is provided between each two protrusions. As the eccentric wheel pull buckle rotates, when the protrusion enters the outer side of the locking block, it is in a locked state, and when the plane enters the outer side of the locking block, it is in an unlocked state. By utilizing the structural design of protrusions, planes, and protrusions, as the eccentric wheel pull buckle rotates, it can freely switch between the locked and unlocked states, and can achieve the technical effect of multi-position locking and unlocking.

[0040] Among them, in a possible implementation, the one-button locking telescopic tube also includes a third tube body 3 and a cone sleeve locking mechanism. The third tube body 3 is sleeved outside the second tube body 2 and can be telescoped relative to the second tube body 2. The cone sleeve locking mechanism is connected to the eccentric wheel locking mechanism through a linkage rod 14, so that when the eccentric wheel locking mechanism locks or releases the first tube body and the second tube body, it drives the cone sleeve locking mechanism to achieve synchronous locking or release of the second tube body and the third tube body.

[0041] The cone sleeve locking mechanism and the eccentric wheel locking mechanism are connected by a linkage rod, so that when the eccentric wheel locking mechanism locks the first tube body and the second tube body, the cone sleeve locking mechanism is driven to synchronously lock the second tube body and the third tube body. Conversely, when the eccentric wheel locking mechanism releases the first tube body and the second tube body, the cone sleeve locking mechanism is driven to synchronously release the second tube body and the third tube body. Compared with the control release and locking of the conventional single-section tube body of the telescopic tube, this solution can greatly simplify the telescopic adjustment control operation process. With one-button operation, the entire telescopic tube is synchronously locked or released. With such a structural design, it is only necessary to operate the eccentric wheel pull button of the eccentric wheel locking mechanism to synchronously realize the release, extension or locking of the three-section tube body. The operation is flexible and simple, and it is convenient to lock and open the telescopic tube.

[0042] As a specific implementation method, the cone sleeve locking mechanism includes a cone head 11, a plurality of cone ring-shaped locking blocks 12 and a locking block sleeve 13. The cone head 11 is fixedly connected to the second end of the second tube body 2. A plurality of cone ring-shaped locking blocks 12 that are adapted to the shape of the cone head are arranged between the cone head 11 and the inner wall of the third tube body 3, and are evenly distributed in the cone ring space between the cone head 11 and the inner wall of the third tube body 3. The tip of the cone ring-shaped locking block 12 faces the thick end of the cone head 11 and is positioned on the outer wall of the cone head 11 through the locking block sleeve 13. A linkage rod 14 is connected to the locking block sleeve 13. The other end of the linkage rod 14 extends downward along the inner wall of the second tube body 2 until the first end of the second tube body 2, and is connected to the linkage square sleeve 15 of the eccentric wheel locking mechanism. The linkage square sleeve 15 is sleeved around the eccentric wheel buckle eccentric wheel to be locked through the linkage square sleeve 15 moves to drive the linkage rod 14 to move. The multiple protrusions 9 of the eccentric wheel buckle 7 are respectively a first protrusion 91, a second protrusion 92 and a third protrusion 93 arranged around the eccentric wheel buckle 7, and the second protrusion 92 is arranged between the first protrusion 91 and the third protrusion 93. By utilizing the rotation of the eccentric wheel buckle 7, the second protrusion 92 and the first protrusion 91, or the third protrusion 93 and the second protrusion 92 act on the locking block 4 and the linkage square sleeve 15 respectively. While squeezing the locking block 4, the linkage square sleeve 15 is synchronously squeezed to drive the linkage square sleeve 15 to move away from the third tube body 3. The linkage rod drives the locking block sleeve 13, forcing the conical ring-shaped locking block 12 to squeeze into between the conical head 11 and the inner wall of the third tube body 3. While locking the second tube body 2 and the first tube body 1, the second tube body 2 and the third tube body 3 are locked.

[0043] Through the cooperation of the eccentric wheel buckle, the linkage square sleeve, the linkage rod, the conical head, and the conical ring-shaped locking block, when the eccentric wheel buckle rotates, the second protrusion squeezes the locking block (the second tube body is locked with the first tube body), while the first protrusion synchronously squeezes the linkage square sleeve to move away from the third tube body, thereby driving the linkage rod and the locking block sleeve to move downward, so that the conical ring-shaped locking block expands outward, thereby squeezing the inner wall of the third tube body and the outer wall of the second tube body, achieving the effect of synchronous locking (the second tube body is locked with the third tube body). That is, the effect of synchronously locking the first tube body with the second tube body, and the second tube body with the third tube body can be achieved synchronously by simply operating the eccentric wheel buckle to rotate (such as Figure 4 When the plane enters the outer side of the locking block, the plane on the other side is just parallel to the upper surface of the linkage square sleeve, and provides space for the linkage square sleeve to move upward, so that the linkage square sleeve moves upward, and synchronously drives the linkage rod and the locking block sleeve to move upward, so that the conical ring locking block also moves upward synchronously, and the squeezing force on the inner wall of the second tube body and the outer wall of the second tube body is lost, then the first tube body and the second tube body, the third tube body and the second tube body are in an unlocked state, and can be relatively slidable and telescopically adjusted (such as Fig. 9 shown).

[0044] In another implementation method, the eccentric wheel buckle rotates, and while the third protrusion squeezes the locking block, the second protrusion synchronously squeezes the linkage square sleeve to move away from the third tube body, thereby driving the linkage rod and the locking block sleeve to move downward, so that the conical ring-shaped locking block expands outward, thereby squeezing the inner wall of the third tube body and the outer wall of the second tube body, achieving a synchronous locking effect (such as Fig.10 shown).

[0045] Of course, the above description is only based on the example that the eccentric wheel buckle includes three protrusions, but it is not limited to this.

[0046] When the eccentric wheel buckle includes more protrusions and planes, its working principle and effect are the same as above, and will not be described in detail here.

[0047] Among them, in a possible implementation, the cone ring-shaped locking blocks are evenly distributed in a plurality, such as 3, 4 or more. The drawings of the utility model specification are shown with 3 cone ring-shaped locking blocks as an example, but are not limited thereto.

[0048] In one possible implementation, a bushing 5 is clamped between the inner wall of the first end of the second tube body 2 and the outer wall of the first tube body 1, and the bushing 5 is provided with a through hole 18 adapted to the locking block 4. The locking block 4 passes through the ring sleeve 6, the second tube body 2 and the through hole 18 of the bushing 5, and abuts against the outer wall of the first tube body 1, so as to position the locking block 4, the ring sleeve 6 and the bushing 5 at the first end of the second tube body 2.

[0049] Among them, the locking block also positions the ring sleeve and the bushing at the first end of the second tube body, and the linkage square sleeve is sleeved around the eccentric wheel of the eccentric buckle. When the buckle rotates to tighten and release the locking block, it also pushes the linkage square sleeve to move back and forth. The bushing is located at the first end of the second tube body, between the second tube body and the first tube body, and is positioned by the end of the ring sleeve.

[0050] In a possible implementation, the bushing 5 is clamped between the inner wall of the first end of the second tube body 2 and the outer wall of the first tube body 1 through a protruding clamping ring 51 .

[0051] In a possible implementation, a non-slip sleeve 16 is further provided on the outer wall of the top end of the first tube body 1. The non-slip sleeve can prevent the first tube body from slipping out of the second tube body during the sliding process relative to the second tube body.

[0052] In a possible implementation, a wear-resistant pad 17 is further provided at the bottom of the first tube body 1. The provision of the wear-resistant pad can effectively prevent the telescopic tube from being excessively worn during use and shortening its service life.

[0053] Among them, in a possible implementation scheme, the inner side surface of the locking block 4 is adapted to the outer wall of the first tube body 1 and is set as a concave arc surface 41. By setting the inner side surface of the locking block as a concave arc surface, the locking block and the first tube body are more closely fitted, and the effect is better.

[0054] Through the above detailed description of the one-touch locking telescopic tube in combination with the drawings of the specification, it can be understood that in one implementation scheme, the one-touch locking telescopic tube includes a first tube body, a second tube body, a locking block, a bushing and an eccentric wheel pull buckle, the first tube body is sleeved in the second tube body and can slide relatively telescopically, the locking block passes through the through hole of the second tube body and abuts against the outer wall of the first tube body, the ring sleeve is sleeved and fixed on the outer wall of the second tube body, the eccentric wheel pull buckle is connected to the ring sleeve by rotating the shaft, the inner side of the eccentric wheel pull buckle abuts against the outer side of the locking block, and the eccentric wheel pull buckle rotates around the shaft, and the protrusion of the eccentric wheel pull buckle squeezes the locking block, so that the first tube body and the second tube body are locked by the locking block. With such a structural design, it is possible to achieve one-touch locking through the rotation of the eccentric wheel pull buckle, and the operation is flexible and simple, which is convenient for locking and opening the telescopic tube.

[0055] When the telescopic tube further includes a third tube body, the cone sleeve locking mechanism and the eccentric wheel locking mechanism are connected by a linkage rod, so that when the eccentric wheel locking mechanism locks the first tube body and the second tube body, the cone sleeve locking mechanism is driven to synchronously lock the second tube body and the third tube body. Conversely, when the eccentric wheel locking mechanism releases the first tube body and the second tube body, the cone sleeve locking mechanism is driven to synchronously release the second tube body and the third tube body. Compared with the release and locking of the conventional single-section tube body of the telescopic tube, the one-button locking telescopic tube of the utility model can greatly simplify the telescopic adjustment control operation process. With one-button operation, the entire telescopic tube is synchronously locked or released. With such a structural design, it is only necessary to operate the eccentric wheel pull button of the eccentric wheel locking mechanism to synchronously realize the release, extension or locking of the three-section tube body. The operation is flexible and simple, and it is convenient to lock and release the telescopic tube.

[0056] Among them, the one-touch locking telescopic tube of the utility model can be applied to conventional telescopic tube application fields, and can also be used as a tripod, for example.

[0057] On the basis of the one-touch locking telescopic tube provided above, the utility model further provides a tripod, which includes three leg tubes, and the leg tubes are the one-touch locking telescopic tubes mentioned above.

[0058] like Fig.12 As shown, the tripod includes three legs 100, each leg 100 is the above-mentioned one-touch locking telescopic tube. For the specific structure and working principle of the one-touch locking telescopic tube, please refer to the above-mentioned detailed description of the one-touch locking telescopic tube, which will not be repeated here. By using the one-touch locking telescopic tube as the leg of the tripod, the leg extension control of the tripod can be facilitated.

[0059] In order to facilitate the locking or releasing design of the tripod, the tripod also includes a center stabilizer 200, which is connected to one end of the eccentric wheel buckle of the one-button locking telescopic tube in three directions respectively, so as to realize the synchronous locking or releasing control of the three legs through the operation of the center stabilizer.

[0060] When the three legs of the tripod are retracted and folded, the central stabilizer is also folded upward and hidden in the middle of the three legs, saving storage space when the tripod is folded.

[0061] The tripod further includes a leveler 300, and the three legs are connected to the leveler by hinged connection. For the specific structure of the leveler, a leveler commonly used in the art can be used. For example, the leveler already applied by the applicant can be used. The specific structure and working principle of the leveler can be found in the applicant's prior patent application (2024202515497).

[0062] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A one-touch locking telescopic tube, characterized in that: The one-touch locking telescopic tube includes a first tube body, a second tube body and an eccentric wheel locking mechanism, the eccentric wheel locking mechanism includes a locking block, a ring sleeve and an eccentric wheel buckle, the first tube body is sleeved in the second tube body and can be telescopically slid relative to the second tube body, a through hole adapted to the locking block is opened on the first end portion of the second tube body, the locking block passes through the through hole of the ring sleeve and abuts against the outer wall of the first tube body, the ring sleeve is sleeved and fixed on the outer wall of the first end portion of the second tube body, the eccentric wheel buckle is rotatably connected to the ring sleeve via a rotating shaft, the inner side of the eccentric wheel buckle abuts against the outer side of the locking block, and when the eccentric wheel buckle rotates around the rotating shaft, the protrusion of the eccentric wheel buckle squeezes the locking block to utilize the locking block to lock the first tube body and the second tube body.

2. The one-touch locking telescopic tube according to claim 1, characterized in that: The eccentric wheel buckle has a plurality of protrusions, and a plane matched with the outer side of the locking block is arranged between every two protrusions.

3. The one-touch locking telescopic tube according to claim 2, characterized in that: The one-touch locking telescopic tube also includes a third tube body and a cone sleeve locking mechanism. The third tube body is sleeved outside the second tube body and can be telescoped relative to the second tube body. The cone sleeve locking mechanism is connected to the eccentric wheel locking mechanism through a linkage rod, so that when the eccentric wheel locking mechanism locks or releases the first tube body and the second tube body, the cone sleeve locking mechanism is driven to achieve synchronous locking or release of the second tube body and the third tube body.

4. The one-touch locking telescopic tube according to claim 3, characterized in that: The cone sleeve locking mechanism comprises a cone head, a plurality of cone-shaped locking blocks and a locking block sleeve, the cone head is fixedly connected to the second end of the second tube body, the plurality of cone-shaped locking blocks matched with the shape of the cone head are arranged between the cone head and the inner wall of the third tube body, and are evenly distributed in the cone ring space between the cone head and the inner wall of the third tube body, and the tip of the cone-shaped locking block faces the thick end of the cone head and is positioned by the locking block sleeve, the locking block sleeve is connected to the linkage rod, the other end of the linkage rod extends downward along the inner wall of the second tube body until the first end of the second tube body, and is connected to the linkage square sleeve of the eccentric wheel locking mechanism, the linkage square sleeve is sleeved around the eccentric wheel of the eccentric wheel buckle, and the eccentric wheel The multiple protrusions of the eccentric wheel buckle are respectively a first protrusion, a second protrusion and a third protrusion arranged around the circumference of the eccentric wheel buckle, and the second protrusion is arranged between the first protrusion and the third protrusion, so as to utilize the rotation of the eccentric wheel buckle to act on the locking block and the linkage square sleeve respectively through the second protrusion and the first protrusion, or the third protrusion and the second protrusion, so that while squeezing the locking block, the linkage square sleeve is synchronously squeezed to drive the linkage square sleeve to move away from the third tube body, and the linkage rod drives the locking block sleeve to force the conical ring locking block to squeeze between the conical head and the inner wall of the third tube body, so as to lock the second tube body and the first tube body while realizing the locking of the second tube body and the third tube body.

5. The one-touch locking telescopic tube according to claim 1, characterized in that: A bushing is clamped between the inner wall of the first end of the second tube body and the outer wall of the first tube body, and the bushing is provided with a through hole adapted to the locking block. The locking block passes through the through hole of the annular sleeve, the second tube body and the bushing, and abuts against the outer wall of the first tube body to position the locking block, the annular sleeve and the bushing at the first end of the second tube body.

6. The one-touch locking telescopic tube according to claim 5, characterized in that: The bushing is clamped between the inner wall of the first end of the second tube body and the outer wall of the first tube body through a protruding clamping ring.

7. The one-touch locking telescopic tube according to claim 1, characterized in that: An anti-slip sleeve is also arranged on the outer wall of the top end of the first tube body.

8. The one-touch locking telescopic tube according to claim 1, characterized in that: A wear-resistant foot pad is arranged at the bottom end of the first tube body.

9. The one-touch locking telescopic tube according to claim 1, characterized in that: The inner side surface of the locking block is matched with the outer wall of the first tube body and is arranged in a concave arc surface.

10. A tripod, characterized in that: The tripod comprises three leg tubes, and the leg tubes are the one-touch locking telescopic tubes described in any one of claims 1 to 9.

Images