Outer lock of folding rod

Abstract

The utility model discloses a folding rod outer lock, and belongs to the technical field of rods, the folding rod outer lock comprises an upper lock piece and a lower lock piece, the upper lock piece is connected with a sleeve, the lower lock piece is connected with a pipe core, the pipe core is detachably connected with the sleeve through the upper lock piece and the lower lock piece, the inner wall surface of the upper lock piece is provided with a chute along the circumferential direction, and the inner wall surface of the lower lock piece is provided with a sliding groove. A clamping groove is formed in one end of the sliding groove, a channel leading to the bottom face of the upper locking piece is arranged at the other end of the sliding groove, a clamping protrusion matched with the clamping groove is arranged on the outer surface of the lower locking piece, the upper portion of the lower locking piece extends into the upper locking piece, and the clamping protrusion moves into the sliding groove along the channel. The upper locking piece rotates relative to the lower locking piece, when the clamping protrusion moves into the clamping groove at one end of the sliding groove, the upper locking piece and the lower locking piece are locked, and when the clamping protrusion moves to the other end of the sliding groove, the upper locking piece and the lower locking piece are detachable. The device is simple and reasonable in structure and convenient and safe to operate.

Description

Technical Field

[0001] The present application relates to the technical field of poles and canes, and in particular to an external lock for a folding pole. Background Art

[0002] Existing hiking poles, ski poles and other poles are mainly used to assist walking and provide support. Traditional poles are mostly one-piece poles, which have the disadvantages of being long, large, and inconvenient to store and carry. For this reason, many retractable or foldable poles have emerged. Retractable poles generally include a main tube and an extension tube, which are retracted and positioned by a retractable positioning device to achieve the purpose of reducing the volume. However, the structure is relatively complex and the cost is also high. Folding poles are generally composed of multi-section poles and elastic drawstrings that penetrate and connect the multi-section poles. They have a simpler structure and are easy to fold and store.

[0003] The related prior art such as the Chinese patent application "A buttonless folding rod"; application number: CN202310166327.5; discloses a handle, an upper rod body, and a lower rod body assembly which are arranged in sequence, the lower rod body assembly is composed of at least two foldable rod bodies which are tightened and connected by ropes, a fastener assembly and an elastic structure, the upper end of the lower rod body assembly is telescopically sleeved in the upper rod body and locked and fixed by a telescopic locking mechanism, the rope is passed through the lower rod body assembly, the upper end of the rope is buckled with the pipe mouth at the upper end of the lower rod body assembly through the fastener assembly, the lower end of the rope is connected to the lower end of the lower rod body assembly through the elastic structure, an inner plug is provided in the upper rod body, the inner plug is connected to the fastener assembly through a pull rope, a tapered hole is provided at the lower end of the inner plug, and a tapered surface is provided at the upper end of the fastener assembly, when the lower rod body assembly is retracted into place in the upper rod body, the inner plug is pressed against the tapered surface to disengage the fastener assembly from the pipe mouth, and the lower rod body assembly can be pulled out and folded. The above patent application has a simple and reasonable structure and is easy to use. It can not only extend and lock the rod body, but also be conveniently folded without the need for buttons. It is safe and reliable to use and easy to store and carry.

[0004] Different from the solution of the above patent application, the present application proposes a new solution for the external lock of the folding rod, which also removes the button structure to unlock the locking mechanism, thereby avoiding accidental touches caused by the contact button. Utility Model Content

[0005] The technical problem to be solved by the present application is to provide a folding rod outer lock with a simple and reasonable structure, convenient operation and safety.

[0006] The technical solution adopted in the present application is: a folding rod external lock, comprising an upper locking piece and a lower locking piece, the upper locking piece is connected to a sleeve, the lower locking piece is connected to a tube core, the tube core and the sleeve are detachably connected through the upper locking piece and the lower locking piece, the inner wall surface of the upper locking piece is provided with a slide groove along its circumferential direction, one end of the slide groove is provided with a clamping groove, the other end of the slide groove is provided with a channel leading to the bottom surface of the upper locking piece, the outer surface of the lower locking piece is provided with a clamping protrusion adapted to the clamping groove, the upper part of the lower locking piece extends into the upper locking piece, and the clamping protrusion moves along the channel into the slide groove; the upper locking piece rotates relative to the lower locking piece, and when the clamping protrusion moves to the clamping groove at one end of the slide groove, the upper locking piece and the lower locking piece are locked, and when the clamping protrusion moves to the other end of the slide groove, the upper locking piece and the lower locking piece are detachable.

[0007] Compared with the prior art, the advantage of the present application is that, in the present application, an upper locking member and a lower locking member connected to the sleeve and the tube core in the folding rod are respectively adopted, and the locking and disassembly of the sleeve and the tube core are realized by realizing the locking and disassembly between the upper locking member and the lower locking member. Specifically, the present application adopts a slide groove provided on the inner wall surface of the upper locking member along its circumferential direction, and a channel leading to the bottom surface of the upper locking member is provided at the other end of the slide groove. Then the card protrusion can enter the slide groove along the channel, and of course, it can also be pulled out from the slide groove through the channel to realize disassembly. A card groove is provided at one end of the slide groove, and when the card protrusion moves into the card groove at one end of the slide groove, the upper locking member and the lower locking member are locked. When the present application is locked and disassembled, the user applies force to make the upper locking member and the lower locking member rotate relative to each other, thereby switching the states of the two. The present application proposes a new solution for external locking of the folding rod, and also removes the button structure to unlock the locking mechanism, thereby avoiding accidental touch caused by contacting the button.

[0008] In some embodiments of the present application, a retaining ring is provided on the inner wall surface of the locking element, and the retaining ring separates the locking element into an upper cavity and a lower cavity. The slide groove is located in the lower cavity of the locking element, and the sleeve is located in the upper cavity of the locking element.

[0009] In the present application, the inner environment of the upper locking member is separated by the retaining ring to distinguish the functional areas inside the upper locking member. At the same time, the retaining ring also plays a limiting role to prevent the lower locking member from being inserted too deeply into the upper retracting member.

[0010] In some embodiments of the present application, the lower locking piece is sleeved outside the tube core, the inner diameter of the retaining ring is adapted to the outer diameter of the tube core, the upper end of the tube core passes through the retaining ring, and the lower locking piece is restricted in the lower cavity by the retaining ring.

[0011] In some embodiments of the present application, the lower locking member includes an upper section and a lower section, the upper section is inserted into the lower cavity of the upper locking member to cooperate with the upper locking member for connection, and the lower section is sleeved outside the tube core. In the present application, the length of the lower section of the lower locking member is extended, so that the lower locking member has a good wrapping and supporting effect on the tube core, thereby improving the stability of the tube core after connection.

[0012] In some embodiments of the present application, the locking protrusion is arranged on the upper section of the lower locking member, and a retaining ring is arranged on the outer peripheral surface of the upper section, the outer diameter of the retaining ring is adapted to the bottom diameter of the upper locking member, and the top surface of the retaining ring is in contact with and connected to the bottom surface of the upper locking member. The above structure enables the upper locking member and the lower locking member to form an integral structure on the surface after being connected. In addition, the structural setting of the retaining ring limits the relative downward displacement of the upper locking member.

[0013] In some embodiments of the present application, the inner wall surface of the upper locking member is provided with at least two slide grooves, the slide grooves are evenly distributed along the circumferential direction of the upper locking member, and the outer surface of the lower locking member is provided with latching protrusions corresponding to the slide grooves one by one.

[0014] In some embodiments of the present application, the inner wall of the locking member is evenly distributed with three slide grooves, which is a preferred solution of the present application. The three slide grooves correspond to three card slots and three card protrusions. After the present application is locked, there are three contact points, that is, three force points, and good stability.

[0015] In some embodiments of the present application, a limiting protrusion is arranged between the card slot and the slide slot, and the cross-section of the limiting protrusion is a triangular structure. The limiting protrusion includes an inclined surface and a vertical surface, and a circular arc transition is formed between the inclined surface and the vertical surface. The vertical surface is arranged close to one side of the slide slot and is perpendicular to the wall surface on which it is located, and the inclined surface is arranged close to one side of the card slot.

[0016] In the present application, a limiting protrusion is provided to separate the card slot and the slide slot, and the user needs to apply rotational force to enable the card protrusion to pass over the limiting protrusion and switch to the card slot or the slide slot.

[0017] In some embodiments of the present application, a depression adapted to the limiting protrusion is provided in the middle of the locking protrusion, the head of the locking protrusion is embedded in the locking groove, the limiting protrusion is embedded in the depression, and the tail of the locking protrusion is located in the slide groove. The locking protrusion, the limiting protrusion, and the locking groove cooperate with each other to achieve locking. The structure of the above-mentioned locking protrusion and the limiting protrusion is the preferred structural scheme of the present application, and those skilled in the art can modify its structure according to needs.

[0018] In some embodiments of the present application, the lower part of the sleeve is sleeved outside the tube core and lined with the inner wall of the locking member. The above structure arrangement makes the tube sleeve highly stable after installation, and avoids shaking after the sleeve is connected to the tube core.

[0019] The above-mentioned implementation modes can be combined arbitrarily based on the common knowledge in the art. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present application will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be used as a limitation on the scope of the present application. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0021] Figure 1 This is a schematic diagram of the structure of this application;

[0022] Figure 2 A cross-sectional view along the axial direction of the present application;

[0023] Figure 3 for Figure 2 Sectional view of section AA;

[0024] Figure 4 This is a schematic diagram of the decomposition structure of this application.

[0025] Among them, the specific descriptions of the accompanying drawings are as follows: 1. upper locking piece; 2. lower locking piece; 3. sleeve; 4. tube core; 5. slide groove; 6. slot; 7. channel; 8. clamping protrusion; 9. retaining ring; 10. retaining ring; 11. limiting protrusion; 11a. inclined surface; 11b. vertical surface; 12. recess. DETAILED DESCRIPTION

[0026] The present application is described in detail below in conjunction with the accompanying drawings.

[0027] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0028] A folding rod outer lock, embodiment 1 Figures 1 to 3 As shown: it includes an upper locking member 1 and a lower locking member 2, the upper locking member 1 is connected to a sleeve 3, the lower locking member 2 is connected to a tube core 4, and the tube core 4 and the sleeve 3 are detachably connected through the upper locking member 1 and the lower locking member 2. The inner wall surface of the upper locking member 1 is provided with a slide groove 5 along its circumferential direction, one end of the slide groove 5 is provided with a clamping groove 6, and the other end of the slide groove 5 is provided with a channel 7 leading to the bottom surface of the upper locking member 1, and the outer surface of the lower locking member 2 is provided with a clamping protrusion 8 adapted to the clamping groove 6, the upper part of the lower locking member 2 extends into the upper locking member 1, and the clamping protrusion 8 moves along the channel 7 into the slide groove 5. Of course, it can also be disassembled by pulling it out from the slide groove 5 through the channel 7. A clamping groove 6 is provided at one end of the slide groove 5, and when the clamping protrusion 8 moves into the clamping groove 6 at one end of the slide groove 5, the upper locking member 1 and the lower locking member 2 are locked.

[0029] The upper locking member 1 rotates relative to the lower locking member 2. When the latch 8 moves into the latch groove 6 at one end of the slide groove 5, the upper locking member 1 and the lower locking member 2 are locked. When the latch 8 moves to the other end of the slide groove 5, the upper locking member 1 and the lower locking member 2 are detachable. When locking and disassembling, the user applies force to make the upper locking member 1 and the lower locking member 2 rotate relative to each other, thereby switching the states of the two. The present application proposes a new solution for external locking of the folding rod, which also removes the button structure to unlock the locking mechanism, avoiding accidental touches caused by contact buttons.

[0030] Embodiment 2, as Figures 1 to 4 As shown, the inner wall surface of the locking member 1 is provided with a retaining ring 9, and the retaining ring 9 divides the locking member 1 into an upper cavity and a lower cavity, the slide groove 5 is located in the lower cavity of the locking member 1, and the sleeve is located in the upper cavity of the locking member 1. In the present application, the retaining ring 9 is used to separate the internal environment of the locking member 1 to distinguish the functional areas inside. At the same time, the retaining ring 9 also plays a role in limiting, preventing the lower locking member 2 from being inserted too deeply into the upper retracting member.

[0031] The lower locking member 2 is sleeved outside the tube core 4, the inner diameter of the retaining ring 9 is adapted to the outer diameter of the tube core 4, the upper end of the tube core 4 passes through the retaining ring 9, and the lower locking member 2 is restricted in the lower cavity by the retaining ring 9.

[0032] The lower locking member 2 includes an upper section and a lower section, wherein the upper section is inserted into the lower cavity of the upper locking member 1 to be connected with the upper locking member 1, and the lower section is sleeved outside the tube core 4. In the present application, the length of the lower section of the lower locking member 2 is extended, so that the lower locking member 2 has a good wrapping and supporting effect on the tube core 4, thereby improving the stability of the tube core 4 after connection.

[0033] The locking protrusion 8 is arranged on the upper section of the lower locking member 2, and a retaining ring 10 is arranged on the outer circumference of the upper section. The outer diameter of the retaining ring 10 is adapted to the bottom diameter of the upper locking member 1, and the top surface of the retaining ring 10 is in contact with and connected to the bottom surface of the upper locking member 1. The above structure enables the upper locking member 1 to form an integral structure on the surface after being connected with the lower locking member 2. In addition, the structural setting of the retaining ring 10 limits the relative downward displacement of the upper locking member 1.

[0034] The lower part of the sleeve 3 is sleeved outside the tube core 4 and lined with the inner wall of the locking member 1. The above structure arrangement makes the sleeve highly stable after installation, and prevents the sleeve 3 from shaking after being connected to the tube core 4.

[0035] The rest of the content of the second embodiment is the same as that of the first embodiment.

[0036] Embodiment three, as Figures 1 to 4 As shown, the inner wall surface of the upper locking member 1 is provided with at least two slide grooves 5, and the slide grooves 5 are evenly distributed along the circumferential direction of the upper locking member 1, and the outer surface of the lower locking member 2 is provided with latching protrusions 8 corresponding to the slide grooves 5 one by one.

[0037] The inner wall of the locking member 1 is evenly distributed with three slide grooves 5. As a preferred solution of the present application, the three slide grooves 5 correspond to three card slots 6 and three card protrusions 8. After the present application is locked, there are three contact points, that is, three force points, and good stability.

[0038] A limiting protrusion 11 is provided between the card slot 6 and the slide slot 5, and the cross section of the limiting protrusion 11 is a triangular structure. The limiting protrusion 11 includes an inclined surface 11a and a vertical surface 11b, and there is an arc transition between the inclined surface 11a and the vertical surface 11b. The vertical surface 11b is provided close to one side of the slide slot 5 and is perpendicular to the wall surface where it is located, and the inclined surface 11a is provided close to one side of the card slot 6. In the present application, the card slot 6 is separated from the slide slot 5 by providing the limiting protrusion 11, and the user needs to rotate and apply force to realize that the card protrusion 8 passes over the limiting protrusion 11 and switches to the card slot 6 or the slide slot 5.

[0039] The middle part of the clamping protrusion 8 is provided with a recess 12 adapted to the limiting protrusion 11, the head of the clamping protrusion 8 is embedded in the clamping groove 6, the limiting protrusion 11 is embedded in the recess 12, and the tail of the clamping protrusion 8 is located in the slide groove 5. The clamping protrusion 8, the limiting protrusion 11, and the clamping groove 6 cooperate with each other to achieve locking. The structure of the clamping protrusion 8 and the limiting protrusion 11 is the preferred structural solution of the present application, and those skilled in the art can modify the structure according to their needs.

[0040] The other contents of the third embodiment are the same as those of the second embodiment.

[0041] The present application is described in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A folding rod external lock, characterized in that: The invention comprises an upper locking member (1) and a lower locking member (2), wherein the upper locking member (1) is connected to a sleeve (3), the lower locking member (2) is connected to a tube core (4), the tube core (4) and the sleeve (3) are detachably connected via the upper locking member (1) and the lower locking member (2), a slide groove (5) is provided on the inner wall surface of the upper locking member (1) along its circumferential direction, a clamping groove (6) is provided at one end of the slide groove (5), a channel (7) leading to the bottom surface of the upper locking member (1) is provided at the other end of the slide groove (5), and the lower locking member (1) is connected to the inner wall surface of the upper locking member (1) via the upper locking member (1) and the lower locking member (2). (2) The outer surface is provided with a locking protrusion (8) adapted to the locking groove (6); the upper part of the lower locking member (2) extends into the upper locking member (1), and the locking protrusion (8) moves along the channel (7) into the slide groove (5); the upper locking member (1) rotates relative to the lower locking member (2); when the locking protrusion (8) moves into the locking groove (6) at one end of the slide groove (5), the upper locking member (1) and the lower locking member (2) are locked; when the locking protrusion (8) moves to the other end of the slide groove (5), the upper locking member (1) and the lower locking member (2) are detachable.

2. A folding rod external lock according to claim 1, characterized in that: The inner wall surface of the locking element (1) is provided with a retaining ring (9), and the retaining ring (9) divides the locking element (1) into an upper cavity and a lower cavity. The slide groove (5) is located in the lower cavity of the locking element (1), and the sleeve is located in the upper cavity of the locking element (1).

3. A folding rod external lock according to claim 2, characterized in that: The lower locking member (2) is sleeved outside the tube core (4); the inner diameter of the retaining ring (9) is adapted to the outer diameter of the tube core (4); the upper end of the tube core (4) passes through the retaining ring (9); and the lower locking member (2) is restricted in the lower cavity by the retaining ring (9).

4. A folding rod external lock according to claim 2, characterized in that: The lower locking member (2) comprises an upper section and a lower section, the upper section is inserted into the lower cavity of the upper locking member (1) to cooperate with the upper locking member (1) for connection, and the lower section is sleeved outside the tube core (4).

5. A folding rod external lock according to claim 4, characterized in that: The locking protrusion (8) is arranged on the upper section of the lower locking member (2), and a retaining ring (10) is arranged on the outer peripheral surface of the upper section. The outer diameter of the retaining ring (10) is adapted to the bottom diameter of the upper locking member (1), and the top surface of the retaining ring (10) is in contact with and connected to the bottom surface of the upper locking member (1).

6. A folding rod external lock according to claim 1, characterized in that: The inner wall surface of the upper locking member (1) is provided with at least two slide grooves (5), the slide grooves (5) are evenly distributed along the circumferential direction of the upper locking member (1), and the outer surface of the lower locking member (2) is provided with latching protrusions (8) corresponding to the slide grooves (5) one by one.

7. A folding rod external lock according to claim 1, characterized in that: The inner wall surface of the locking member (1) is evenly distributed with three sliding grooves (5).

8. The folding rod external lock according to claim 1, characterized in that: A limiting protrusion (11) is arranged between the clamping groove (6) and the slide groove (5), and the cross section of the limiting protrusion (11) is a triangular structure. The limiting protrusion (11) includes an inclined surface (11a) and a vertical surface (11b), and a circular arc transition is formed between the inclined surface (11a) and the vertical surface (11b). The vertical surface (11b) is arranged close to one side of the slide groove (5) and is perpendicular to the wall surface on which it is located, and the inclined surface (11a) is arranged close to one side of the clamping groove (6).

9. A folding rod external lock according to claim 8, characterized in that: The middle part of the locking protrusion (8) is provided with a recess (12) adapted to the limiting protrusion (11); the head of the locking protrusion (8) is embedded in the locking groove (6), the limiting protrusion (11) is embedded in the recess (12), and the tail of the locking protrusion (8) is located in the sliding groove (5).

10. The folding rod external lock according to claim 1, characterized in that: The lower part of the sleeve (3) is sleeved outside the tube core (4) and is lined with the inner wall of the locking member (1).

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