Locking mechanism for telescopic rod

Abstract

The utility model discloses a locking mechanism for a telescopic rod, the telescopic rod comprises a main pipe body and a movable pipe, and the movable pipe is movably sleeved with the main pipe body; the locking mechanism comprises a lock cylinder device and an unlocking device, and a locking matching structure is arranged on the main pipe body. The lock cylinder device is arranged on the movable pipe and comprises a lock cylinder, and the lock cylinder device is used for being matched with the locking matching structure through the lock cylinder so as to lock the movable pipe on the main pipe body; the unlocking device is used for being in linkage with the lock cylinder device through the inhaul cable wiring harness so that the lock cylinder can be separated from the locking matching structure. The lock cylinder device and the unlocking device are combined, the unlocking device is used for being in linkage with the lock cylinder device through the inhaul cable wiring harness so that the lock cylinder can be separated from the locking matching structure, unlocking of the lock cylinder device can be achieved, and unlocking operation of the lock cylinder device is simple and convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a locking mechanism for telescopic rod. BACKGROUND

[0002] Telescopic rod as the part commonly used in mechanical field, main including main pipe body and movable pipe, movable pipe movably with main pipe body is nested, movable pipe is locked on main pipe body through lock core device, and when needing to adjust the length of telescopic rod, need to unlock lock core device first, can move movable pipe relative to main pipe body to lengthen telescopic pipe's length. But the unlocking operation of prior art lock core device is more cumbersome, needs to disassemble screw etc., thereby far cannot satisfy the high demand of industry. CONTENT OF UTILITY MODEL

[0003] In order to overcome the insufficient of prior art, the utility model discloses a locking mechanism for telescopic rod, which makes the unlocking operation of lock core device more simple and convenient.

[0004] The utility model discloses the following technical scheme realizes the purpose:

[0005] A locking mechanism for telescopic rod, the telescopic rod includes main pipe body and movable pipe, the movable pipe movably with main pipe body is nested, the locking mechanism includes lock core device and unlocking device, the main pipe body is provided with locking cooperation structure, the lock core device is set up on movable pipe, and includes lock core, the lock core device is used for with locking cooperation structure cooperation through lock core to lock movable pipe on main pipe body, the unlocking device is used for through cable line linkage lock core device to make lock core separate locking cooperation structure.

[0006] The lock core device includes fixed seat, locking linkage, first locking elastic reset element and second locking elastic reset element, the locking linkage is movably installed on the fixed seat, the first locking elastic reset element is set up between the fixed seat and the locking linkage, the lock core and the locking linkage are linked, the locking linkage is connected with the unlocking device through the cable line, the second locking elastic reset element is set up between the lock core and the locking linkage.

[0007] The locking linkage is provided with guide groove, the lock core and guide groove movably cooperate, from the end close to the cable line to the end far from the cable line of guide groove, the guide groove is inclined to the direction far from locking cooperation structure.

[0008] The locking cooperation structure is locking groove, and the lock core includes the convex column for embedding in the locking groove.

[0009] The first locking elastic reset element is the first spring.

[0010] The second locking elastic reset element is the second spring.

[0011] The unlocking device comprises an unlocking seat, an unlocking elastic reset element, a movable key and an unlocking linkage; the movable key is movably installed on the unlocking seat, the unlocking elastic reset element is installed between the movable key and the unlocking seat, the unlocking linkage is movably installed on the unlocking seat and is in linkage cooperation with the movable key, and the cable harness is arranged between the unlocking linkage and the locking linkage of the lock core device.

[0012] The movable key is provided with a first guide structure, and the unlocking linkage is provided with a second guide structure; the first guide structure and the second guide structure are in sliding cooperation.

[0013] One of the first guide structure and the second guide structure is an inclined arm, and the other is a mounting groove for embedding the inclined arm.

[0014] The unlocking elastic reset element is a third spring.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The locking mechanism for the telescopic rod provided by the utility model is combined with the lock core device and the unlocking device, the unlocking device is linked with the lock core device through the cable harness to make the lock core separate from the locking cooperation structure, the unlocking of the lock core device can be realized, the unlocking operation of the lock core device is relatively simple and convenient, the locking mechanism for the telescopic rod is convenient to install and manufacture, and the manufacturing cost can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a use state diagram of the locking mechanism for the telescopic rod of the utility model;

[0018] Figure 2 It is a separation state diagram of the main pipe body and the movable pipe;

[0019] Figure 3 It is an explosion diagram of the lock core device;

[0020] Figure 4 It is a structure diagram of the unlocking device. DETAILED DESCRIPTION

[0021] In the following, the utility model is further described in combination with the drawings and the specific implementation, and it should be noted that, under the premise of no conflict, the following described embodiments or technical features can be combined to form new embodiments.

[0022] As Figures 1-4As shown, a locking mechanism for telescopic rod, the telescopic rod 40 comprises a main pipe body 41 and a movable pipe 50, the movable pipe 50 is movably sleeved with the main pipe body 41, the locking mechanism comprises a lock core device 60 and an unlocking device 22, the main pipe body 41 is provided with a locking matching structure, the lock core device 60 is arranged on the movable pipe 50 and comprises a lock core 63, the lock core device 60 is used for locking the movable pipe 50 on the main pipe body 41 by the lock core 63 and the locking matching structure, the unlocking device 22 is used for linkage lock core device 60 through a cable 65 to make the lock core 63 disengage from the locking matching structure.In storage, the lock core 63 of the lock core device 60 is matched with the locking matching structure, so that the movable pipe 50 is locked on the main pipe body 41, so that the telescopic rod 40 can keep stable state in storage, in use, by operating the unlocking device 22, the lock core 63 can be disengaged from the locking matching structure by linkage lock core device 60 through the cable 65, the locking of the movable pipe 50 can be released, so that the movable pipe 50 can be moved relative to the main pipe body 41, and the length of the telescopic rod 40 is extended, thus, the locking mechanism for telescopic rod provided by the utility model, by the combination of the lock core device 60 and the unlocking device 22, the lock core 63 can be disengaged from the locking matching structure by linkage lock core device 60 through the cable 65 by the unlocking device 22, the unlocking of the lock core device 60 can be realized, and the unlocking operation of the lock core device 60 is simple and convenient.

[0023] The lock cylinder device 60 comprises a fixed seat 64, a locking linkage 62, a first locking elastic return element 66 and a second locking elastic return element; the locking linkage 62 is movably installed on the fixed seat 64, and the first locking elastic return element 66 is arranged between the fixed seat 64 and the locking linkage 62; the lock cylinder 63 is linked with the locking linkage 62, the locking linkage 62 is connected with the unlocking device 22 through a cable bundle 65, and the second locking elastic return element is arranged between the lock cylinder 63 and the locking linkage 62. The unlocking device 22 comprises an unlocking seat 21, an unlocking elastic return element 25, a movable key 23 and an unlocking linkage 24; the movable key 23 is movably installed on the unlocking seat 21, the unlocking elastic return element 25 is installed between the movable key 23 and the unlocking seat 21, the unlocking linkage 24 is movably installed on the unlocking seat 21 and is linked and matched with the movable key 23, and the cable bundle 65 is arranged between the unlocking linkage 24 and the lock cylinder device 60. When the movable key 23 is pressed downward, the movable key 23 compresses the unlocking elastic return element 25, the unlocking linkage 24 can be pushed through the movable key 23, and the locking linkage 62 is driven to move forward through the cable bundle 65, the first locking elastic return element 66 is compressed in the process of moving forward of the locking linkage 62, the lock cylinder 63 is driven to move through the locking linkage 62, the second locking elastic return element is compressed in the process of moving of the lock cylinder 63, and the lock cylinder 63 is separated from the locking matching structure, thereby playing an unlocking role, and after the locking linkage 62 moves forward to the front limit position relative to the fixed seat 64, the locking linkage 62, the fixed seat 64 and the movable pipe 50 move forward to the maximum length relative to the main pipe body 41 under the pulling action of the cable bundle 65.

[0024] The locking linkage 62 is provided with a guide groove 68, the lock cylinder 63 is movably matched with the guide groove 68, from one end of the guide groove 68 close to the cable bundle 65 to the other end away from the cable bundle 65, the guide groove 68 is inclined away from the locking matching structure. Through the cooperation of the lock cylinder 63 and the guide groove 68, in the process of moving forward of the locking linkage 62, the lock cylinder 63 moves forward with the locking linkage 62, and through the guiding action of the guide groove 68, the lock cylinder 63 can be prompted to move forward and separate from the locking matching structure.

[0025] The locking matching structure is a locking groove, and the lock cylinder 63 comprises a convex column for embedding in the locking groove.

[0026] The first locking elastic return element 66 is a first spring. The second locking elastic return element is a second spring.

[0027] Of course, in addition to this, the first locking elastic reset element 66, the second locking elastic reset element can also use elastic elements such as elastic sheets, but the first locking elastic reset element 66, the second locking elastic reset element are respectively the first spring, the second spring, which is the most preferred embodiment of the utility model, can be conveniently installed, and reduce the cost.

[0028] The cable harness 65 is arranged between the unlocking linkage 24 and the locking linkage 62 of the lock core device 60.

[0029] The movable key 23 is provided with a first guide structure 26, and the unlocking linkage 24 is provided with a second guide structure 27, and the first guide structure 26 and the second guide structure 27 are in sliding cooperation. One of the first guide structure 26 and the second guide structure 27 is an inclined arm, and the other is a mounting groove for embedding the inclined arm. In the embodiment, the first guide structure 26 is an inclined arm, and the second guide structure 27 is a mounting groove, so that when the movable key 23 is pressed, the groove wall of the mounting groove can be pushed by the inclined arm to push the unlocking linkage 24 to move in the direction close to the movable key 23, and when the movable key 23 moves upward under the elastic force of the unlocking elastic reset element 25, the groove wall of the mounting groove can be pushed by the inclined arm to push the unlocking linkage 24 to move in the direction away from the movable key 23.

[0030] The groove wall of the mounting groove includes an inclined surface for sliding cooperation with the inclined arm.

[0031] The unlocking elastic reset element 25 is a third spring.

[0032] Of course, in addition to this, the unlocking elastic reset element 25 can also use elastic elements such as elastic sheets, but the unlocking elastic reset element 25 uses the third spring, which is the most preferred embodiment of the utility model, can be conveniently installed, and reduce the cost.

[0033] The above-mentioned embodiments are only preferred embodiments of the utility model, and cannot be used to limit the scope of protection of the utility model. Any non-substantial changes and replacements made by those skilled in the art on the basis of the utility model belong to the scope of protection required by the utility model.

Claims

1. A locking mechanism for a telescopic pole, the telescopic pole (40) comprising a main tube (41) and a movable tube (50) movably telescopically coupled with the main tube (41); characterized in that: The locking mechanism comprises a lock cylinder device (60) and an unlocking device (22), and the main pipe body (41) is provided with a locking matching structure; the lock cylinder device (60) is arranged on the movable pipe (50) and comprises a lock cylinder (63), and the lock cylinder device (60) is used for locking the movable pipe (50) on the main pipe body (41) by matching the lock cylinder (63) with the locking matching structure; the unlocking device (22) is used for linking the lock cylinder device (60) through a cable bundle (65) to make the lock cylinder (63) disengage from the locking matching structure.

2. A locking mechanism for a telescoping rod as defined in claim 1, wherein: The lock cylinder device (60) comprises a fixed seat (64), a locking linkage (62), a first locking elastic return element (66) and a second locking elastic return element; the locking linkage (62) is movably mounted on the fixed seat (64), and the first locking elastic return element (66) is arranged between the fixed seat (64) and the locking linkage (62); The lock cylinder (63) is linked with the locking linkage (62), the locking linkage (62) is connected with the unlocking device (22) through the cable bundle (65), and the second locking elastic return element is arranged between the lock cylinder (63) and the locking linkage (62).

3. The locking mechanism for a telescoping rod of claim 2, wherein: The locking linkage (62) is provided with a guide groove (68), the lock cylinder (63) is movably matched with the guide groove (68), and from one end of the guide groove (68) close to the cable bundle (65) to the other end of the guide groove (68) away from the cable bundle (65), the guide groove (68) is inclined away from the locking matching structure.

4. The locking mechanism for a telescoping rod of claim 2, wherein: The locking matching structure is a locking groove, and the lock cylinder (63) comprises a protruding column used for being embedded in the locking groove.

5. The locking mechanism for a telescoping rod of claim 2, wherein: The first locking elastic return element (66) is a first spring.

6. The locking mechanism for a telescoping rod of claim 2, wherein: The second locking elastic return element is a second spring.

7. The locking mechanism for a telescoping rod of claim 1, wherein: The unlocking device (22) comprises an unlocking seat (21), an unlocking elastic return element (25), a movable key (23) and an unlocking linkage (24); the movable key (23) is movably mounted on the unlocking seat (21), the unlocking elastic return element (25) is mounted between the movable key (23) and the unlocking seat (21), the unlocking linkage (24) is movably mounted on the unlocking seat (21) and is linked and matched with the movable key (23), and the cable bundle (65) is arranged between the unlocking linkage (24) and the lock cylinder device (60).

8. The locking mechanism for a telescoping rod of claim 7, wherein: The movable key (23) is provided with a first guide structure (26), the unlocking linkage (24) is provided with a second guide structure (27), and the first guide structure (26) and the second guide structure (27) are slidably matched.

9. The locking mechanism for a telescoping rod of claim 8, wherein: One of the first guide structure (26) and the second guide structure (27) is an inclined arm, and the other is a mounting groove for embedding the inclined arm.

10. The locking mechanism for a telescoping rod of claim 7, wherein: The unlocking elastic return element (25) is a third spring.

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