A telescopic driveable telescopic rod mechanism

Abstract

The utility model provides a telescopic rod mechanism of telescopic and driveable relates to telescopic rod mechanism field, include: first sleeve mechanism, the inside of first sleeve mechanism is provided with second sleeve mechanism, the inside of second sleeve mechanism is provided with third sleeve mechanism, the outer wall of one end of first sleeve mechanism and second sleeve mechanism all is provided with locking mechanism. The utility model, through third transmission nest and third transmission rod sleeve are moved on the outer wall of second transmission rod and second transmission nest and second transmission rod sleeve are moved on the outer wall of first transmission rod, through the matching of polygon long lever and polygonal groove, make still can drive operation after length telescopic, make device can satisfy the application scene of mechanical drive, through multiple limit and multiple concentric design, make transmission state can satisfy torsional strength output undeformation and not fall off, and the concentricity is high, and the low vibration makes the multiple telescopic section can keep steady operation.

Description

Technical Field

[0001] This utility model relates to the field of telescopic rod mechanism technology, and in particular to a telescopic rod mechanism that is retractable and capable of transmission. Background Technology

[0002] A telescopic rod is a rod-shaped tool with an adjustable length, typically consisting of multiple nested sections of tubing, with the length fixed by a locking mechanism.

[0003] In existing technologies, telescopic rods can mostly only achieve the effect of extension and retraction. In some situations where transmission is required, traditional telescopic rods are difficult to meet the application scenarios of mechanical transmission. Utility Model Content

[0004] The purpose of this utility model is to provide a telescopic rod mechanism that can extend and transmit power, in order to solve the problem mentioned in the background art that traditional telescopic rods are difficult to meet the application scenarios of mechanical transmission in some situations that require transmission.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: It includes a first sleeve mechanism, comprising a first telescopic tube, a first nest, a first transmission nest, a first limiting block, and a first transmission rod. A second sleeve mechanism is disposed inside the first sleeve mechanism, comprising a second telescopic rod, a second nest, a second transmission nest, a second limiting block, a second transmission rod, and a first limiting sleeve. A third sleeve mechanism is disposed inside the second sleeve mechanism, comprising a third telescopic rod, a third nest, a third transmission nest, a third limiting block, a third transmission rod, a second limiting sleeve, a fourth nest, a fourth transmission nest, and a fourth limiting block. A locking mechanism is provided on the outer wall of one end of both the first and second sleeve mechanisms, comprising a locking sleeve, a cam rod, a rubber pad, and a blocking plate.

[0006] In a preferred embodiment, the inner wall of one end of the first telescopic tube is fixedly connected to the outer wall of the first nest, and the inner wall of the first nest is rotatably connected to the outer wall of the first transmission nest through a bearing.

[0007] In a preferred embodiment, the inner wall of the first nest is fixedly connected to the outer wall of the first limiting block, the first limiting block is located on one side of the first transmission nest, the inner wall of the first transmission nest is fixedly connected to the outer wall of one end of the first transmission rod, and the first transmission rod is configured as a polygonal long rod.

[0008] In a preferred embodiment, the inner wall of the first telescopic tube is movably connected to the outer wall of the second telescopic rod, the inner wall of one end of the second telescopic rod is fixedly connected to the outer wall of the second nest, the inner wall of the second nest is rotatably connected to the outer wall of the second transmission nest through a bearing, the inner wall of the second nest is fixedly connected to the outer wall of the second limiting block, and the second limiting block is located on one side of the second transmission nest.

[0009] In a preferred embodiment, a first polygonal groove is provided inside one end of the second transmission nest, and the inner wall of the first polygonal groove is movably connected to the outer wall of the first transmission rod. The inner wall of the second transmission nest is fixedly connected to the outer wall of one end of the second transmission rod. The outer wall of the first transmission rod is movably connected to the inner wall of the second transmission rod. The second transmission rod is configured as a polygonal long rod, and the outer wall of the second telescopic rod is fixedly connected to the inner wall of the first limiting sleeve.

[0010] In a preferred embodiment, the inner wall of the second telescopic rod is movably connected to the outer wall of the third telescopic rod, one end of the inner wall of the third telescopic rod is fixedly connected to the outer wall of the third nest, the inner wall of the third nest is rotatably connected to the outer wall of the third transmission nest through a bearing, the inner wall of the third nest is fixedly connected to the outer wall of the third limiting block, the third limiting block is located on one side of the third transmission nest, and a second polygonal groove is provided inside one end of the third transmission nest, and the inner wall of the first polygonal groove is movably connected to the outer wall of the second transmission rod.

[0011] In a preferred embodiment, the inner wall of the third transmission nest is fixedly connected to the outer wall of one end of the third transmission rod, the inner wall of the second transmission rod is movably connected to the inner wall of the third transmission rod, the outer wall of the third telescopic rod is fixedly connected to the inner wall of the second limiting sleeve, the inner wall of the other end of the third telescopic rod is fixedly connected to the outer wall of the fourth nest, the inner wall of the fourth nest is rotatably connected to the outer wall of the fourth transmission nest through a bearing, the inner wall of the fourth nest is fixedly connected to the outer wall of the fourth limiting block, the fourth limiting block is located on one side of the fourth transmission nest, and the other end of the third transmission rod is fixedly connected to the inner wall of the fourth transmission nest.

[0012] In a preferred embodiment, the other ends of the first telescopic tube and the second telescopic rod are fixedly connected to the inner wall of the locking sleeve. The top of the locking sleeve is connected to both sides of the cam rod through a rotating shaft. The inner wall of the locking sleeve is fixedly connected to the outer wall of the blocking plate. The two sets of blocking plates are respectively fixedly connected to the inner wall of one end of the first telescopic tube and the second telescopic rod. The first limiting sleeve and the second limiting sleeve are respectively located on one side of the blocking plate.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. This utility model applies a transmission force to a first transmission nest, which rotates via a bearing, thereby driving a first transmission rod to rotate. The rotation of the first transmission rod drives a second transmission nest to rotate, which in turn drives a second transmission rod to rotate. The rotation of the second transmission nest drives a third transmission nest to rotate, which in turn drives a third transmission rod to rotate, and simultaneously drives a fourth transmission nest to rotate. By moving the third transmission nest and the third transmission rod around the outer wall of the second transmission rod, and by moving the second transmission nest and the second transmission rod around the outer wall of the first transmission rod, and by matching the polygonal long rod and the polygonal groove, transmission operation can still be performed after the length is extended or retracted, so that the device can meet the application scenarios of mechanical transmission.

[0015] 2. In this utility model, when the first telescopic tube, the first nest, and the first transmission nest are extended or retracted, the third telescopic rod is first pulled out from the inside of the second telescopic rod. The movement of the third telescopic rod drives the second limiting sleeve to move towards the blocking plate. The blocking plate blocks the second limiting sleeve. When the third telescopic rod moves, it is limited by the blocking of the third limiting block, which drives the third transmission nest and the third transmission rod to move on the outer wall of the second transmission rod. Then, the second telescopic rod is pulled out from the inside of the first telescopic tube. The second telescopic rod drives the first limiting sleeve to move towards the blocking plate. The blocking plate blocks the first limiting sleeve. During movement, the second limiting block blocks the movement, causing the second transmission nest and the second transmission rod to move along the outer wall of the first transmission rod. After the second and third telescopic rods are extended to a suitable length, the cam rod is rotated, causing the protruding part at the bottom of the cam rod to press against the rubber pad. The pressing force then moves the outer wall of the first telescopic tube and the second telescopic rod, thereby stabilizing the extended second and third telescopic rods. This facilitates the extension and retraction of the device and ensures stable operation after extension and retraction. At the same time, through multiple limiting and concentric designs, the device can maintain torque output without deformation or detachment during transmission. High concentricity and low vibration ensure smooth operation during multi-section extension and retraction. Attached Figure Description

[0016] Figure 1 A schematic diagram of the extended state of a telescopic rod mechanism that is retractable and transmissive, provided by this utility model;

[0017] Figure 2 A schematic diagram of the retracted state of a telescopic rod mechanism that is retractable and transmissive, provided for this utility model;

[0018] Figure 3 A partial schematic diagram of the first sleeve mechanism of a telescopic rod mechanism that is retractable and transmissive, provided by this utility model;

[0019] Figure 4A partial schematic diagram of the second sleeve mechanism of a telescopic rod mechanism that is retractable and transmissive, provided by this utility model;

[0020] Figure 5 A partial schematic diagram of the third sleeve mechanism of a telescopic rod mechanism that is retractable and transmissive, provided by this utility model;

[0021] Figure 6 A schematic diagram of the transmission part of a telescopic rod mechanism with retractable and transmissive capabilities provided by this utility model in its retracted state;

[0022] Figure 7 A cross-sectional view of the locking mechanism of a telescopic rod mechanism that is retractable and transmissive, provided by this utility model.

[0023] Legend:

[0024] 1. First sleeve mechanism; 101. First telescopic tube; 102. First nest; 103. First transmission nest; 104. First limiting block; 105. First transmission rod; 2. Second sleeve mechanism; 201. Second telescopic rod; 202. Second nest; 203. Second transmission nest; 204. Second limiting block; 205. Second transmission rod; 206. First limiting sleeve; 3. Third sleeve mechanism; 301. Third telescopic rod; 302. Third nest; 303. Third transmission nest; 304. Third limiting block; 305. Third transmission rod; 306. Second limiting sleeve; 307. Fourth nest; 308. Fourth transmission nest; 309. Fourth limiting block; 4. Locking mechanism; 401. Locking sleeve; 402. Cam rod; 403. Rubber pad; 404. Blocking plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-7This utility model provides a technical solution comprising: a first sleeve mechanism 1, which includes a first telescopic tube 101, a first nest 102, a first transmission nest 103, a first limiting block 104, and a first transmission rod 105; a second sleeve mechanism 2 is disposed inside the first sleeve mechanism 1, which includes a second telescopic rod 201, a second nest 202, a second transmission nest 203, a second limiting block 204, a second transmission rod 205, and a first limiting sleeve 206. The first sleeve mechanism 1 and the second sleeve mechanism 2 are provided with a third sleeve mechanism 3 inside. The third sleeve mechanism 3 includes a third telescopic rod 301, a third nest 302, a third transmission nest 303, a third limiting block 304, a third transmission rod 305, a second limiting sleeve 306, a fourth nest 307, a fourth transmission nest 308 and a fourth limiting block 309. The outer wall of one end of the first sleeve mechanism 1 and the second sleeve mechanism 2 are provided with a locking mechanism 4. The locking mechanism 4 includes a locking sleeve 401, a cam rod 402, a rubber pad 403 and a blocking plate 404.

[0027] In one embodiment, the inner wall of one end of the first telescopic tube 101 is fixedly connected to the outer wall of the first nest 102. The inner wall of the first nest 102 is rotatably connected to the outer wall of the first transmission nest 103 via a bearing. The inner wall of the first nest 102 is fixedly connected to the outer wall of the first limiting block 104, which is located on one side of the first transmission nest 103. The inner wall of the first transmission nest 103 is fixedly connected to the outer wall of one end of the first transmission rod 105, which is a polygonal long rod. The inner wall of the first telescopic tube 101 is movably connected to the outer wall of the second telescopic rod 201. The inner wall of one end of the second telescopic rod 201 is fixedly connected to the outer wall of the second nest 202. The inner wall of the second transmission nest 202 is rotatably connected to the outer wall of the second transmission nest 203 via a bearing. The inner wall of the second nest 202 is fixedly connected to the outer wall of the second limiting block 204. The second limiting block 204 is located on one side of the second transmission nest 203. A first polygonal groove is opened inside one end of the second transmission nest 203, and the inner wall of the first polygonal groove is movably connected to the outer wall of the first transmission rod 105. The inner wall of the second transmission nest 203 is fixedly connected to the outer wall of one end of the second transmission rod 205. The outer wall of the first transmission rod 105 is movably connected to the inner wall of the second transmission rod 205. The second transmission rod 205 is set as a polygonal long rod. The outer wall of the second telescopic rod 201 is fixedly connected to the inner wall of the first limiting sleeve 206.

[0028] Specifically: the third transmission nest 303 and the third transmission rod 305 move by fitting on the outer wall of the second transmission rod 205, and the second transmission nest 203 and the second transmission rod 205 move by fitting on the outer wall of the first transmission rod 105. Through the matching of the polygonal long rod and the polygonal groove, the transmission operation can still be performed after the length is extended or retracted, so that the device can meet the application scenarios of mechanical transmission.

[0029] In one embodiment, the inner wall of the second telescopic rod 201 is movably connected to the outer wall of the third telescopic rod 301; the inner wall of one end of the third telescopic rod 301 is fixedly connected to the outer wall of the third nest 302; the inner wall of the third nest 302 is rotatably connected to the outer wall of the third transmission nest 303 via a bearing; the inner wall of the third nest 302 is fixedly connected to the outer wall of the third limiting block 304; the third limiting block 304 is located on one side of the third transmission nest 303; a second polygonal groove is formed inside one end of the third transmission nest 303; and the inner wall of the first polygonal groove is movably connected to the outer wall of the second transmission rod 205. The inner wall of the third transmission nest 303 is also movably connected to the outer wall of the third transmission rod 205. One end of the transmission rod 305 is fixedly connected to the outer wall, the inner wall of the second transmission rod 205 is movably connected to the inner wall of the third transmission rod 305, the outer wall of the third telescopic rod 301 is fixedly connected to the inner wall of the second limiting sleeve 306, the inner wall of the other end of the third telescopic rod 301 is fixedly connected to the outer wall of the fourth nest 307, the inner wall of the fourth nest 307 is rotatably connected to the outer wall of the fourth transmission nest 308 through a bearing, the inner wall of the fourth nest 307 is fixedly connected to the outer wall of the fourth limiting block 309, the fourth limiting block 309 is located on one side of the fourth transmission nest 308, and the other end of the third transmission rod 305 is fixedly connected to the inner wall of the fourth transmission nest 308.

[0030] Specifically: Through multiple limit and concentric design, the torque output can be guaranteed to remain unchanged and not fall off during transmission. High concentricity and low vibration ensure smooth operation when multiple sections extend or retract.

[0031] In one embodiment, the other ends of the first telescopic tube 101 and the second telescopic rod 201 are fixedly connected to the inner wall of the locking sleeve 401. The top of the locking sleeve 401 is connected to both sides of the cam rod 402 through a rotating shaft. The inner wall of the locking sleeve 401 is fixedly connected to the outer wall of the blocking plate 404. The two sets of blocking plates 404 are respectively fixedly connected to the inner wall of one end of the first telescopic tube 101 and the second telescopic rod 201. The first limiting sleeve 206 and the second limiting sleeve 306 are respectively located on one side of the blocking plate 404.

[0032] Specifically: Rotating the cam rod 402 causes the protruding part at the bottom of the cam rod 402 to squeeze the rubber pad 403. Then, the squeezing force moves the outer wall of the first telescopic tube 101 and the second telescopic rod 201, thereby stabilizing the pulled-out second telescopic rod 201 and the third telescopic rod 301, which facilitates the telescopic operation of the device and the stable operation after telescopic operation.

[0033] Working principle: When extending or retracting the first telescopic tube 101, the first nest 102, and the first transmission nest 103, the third telescopic rod 301 is first pulled out from the inside of the second telescopic rod 201. The movement of the third telescopic rod 301 drives the second limiting sleeve 306 to move towards the blocking plate 404. The blocking plate 404 blocks the second limiting sleeve 306. When the third telescopic rod 301 moves, it is limited by the blocking of the third limiting block 304, which drives the third transmission nest 303 and the third transmission rod 305 to move around the outer wall of the second transmission rod 205. Then, the second telescopic rod 201 is pulled out from the inside of the first telescopic tube 101. The second telescopic rod 201 drives the first limiting sleeve 206 to move towards the blocking plate 404. The blocking plate 404 blocks the first limiting sleeve 206. When the second telescopic rod 201 moves, it is limited by the blocking of the second limiting block 204, which drives the second transmission nest 203 and the second transmission rod 305 to move around the outer wall of the second transmission rod 205. The transmission rod 205 moves along the outer wall of the first transmission rod 105. After the second telescopic rod 201 and the third telescopic rod 301 are extended to a suitable length, the cam rod 402 is rotated, causing the protruding part at the bottom of the cam rod 402 to press against the rubber pad 403. The pressing force then moves the outer wall of the first telescopic tube 101 and the second telescopic rod 201, thereby stabilizing the extended second telescopic rod 201 and the third telescopic rod 301 and applying transmission force to the first transmission nest 103. The first transmission nest 103 rotates through the bearing, thereby driving the first transmission rod 105 to rotate. The rotation of the first transmission rod 105 drives the second transmission nest 203 to rotate, which in turn drives the second transmission rod 205 to rotate. The rotation of the second transmission nest 205 drives the third transmission nest 303 to rotate, which in turn drives the third transmission rod 305 to rotate, and simultaneously drives the fourth transmission nest 308 to rotate.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A telescopic and transmission-enabled telescopic rod mechanism, characterized in that, include: A first sleeve mechanism (1) includes a first telescopic tube (101), a first nest (102), a first transmission nest (103), a first limiting block (104), and a first transmission rod (105). A second sleeve mechanism (2) is provided inside the first sleeve mechanism (1). The second sleeve mechanism (2) includes a second telescopic rod (201), a second nest (202), a second transmission nest (203), a second limiting block (204), a second transmission rod (205), and a first limiting sleeve (206). A third sleeve is provided inside the second sleeve mechanism (2). The third sleeve mechanism (3) includes a third telescopic rod (301), a third nest (302), a third transmission nest (303), a third limiting block (304), a third transmission rod (305), a second limiting sleeve (306), a fourth nest (307), a fourth transmission nest (308), and a fourth limiting block (309). The outer wall of one end of the first sleeve mechanism (1) and the second sleeve mechanism (2) is provided with a locking mechanism (4). The locking mechanism (4) includes a locking sleeve (401), a cam rod (402), a rubber pad (403), and a blocking plate (404).

2. The telescopic and transmissive rod mechanism according to claim 1, characterized in that: One end of the inner wall of the first telescopic tube (101) is fixedly connected to the outer wall of the first nest (102), and the inner wall of the first nest (102) is rotatably connected to the outer wall of the first transmission nest (103) through a bearing.

3. The telescopic and transmission-enabled telescopic rod mechanism according to claim 2, characterized in that: The inner wall of the first nest (102) is fixedly connected to the outer wall of the first limiting block (104). The first limiting block (104) is located on one side of the first transmission nest (103). The inner wall of the first transmission nest (103) is fixedly connected to the outer wall of one end of the first transmission rod (105). The first transmission rod (105) is configured as a polygonal long rod.

4. The telescopic and transmission-enabled telescopic rod mechanism according to claim 1, characterized in that: The inner wall of the first telescopic tube (101) is movably connected to the outer wall of the second telescopic rod (201). The inner wall of one end of the second telescopic rod (201) is fixedly connected to the outer wall of the second nest (202). The inner wall of the second nest (202) is rotatably connected to the outer wall of the second transmission nest (203) through a bearing. The inner wall of the second nest (202) is fixedly connected to the outer wall of the second limiting block (204). The second limiting block (204) is located on one side of the second transmission nest (203).

5. The telescopic and transmission-enabled telescopic rod mechanism according to claim 4, characterized in that: The second transmission nest (203) has a first polygonal groove inside one end, and the inner wall of the first polygonal groove is movably connected to the outer wall of the first transmission rod (105). The inner wall of the second transmission nest (203) is fixedly connected to the outer wall of one end of the second transmission rod (205). The outer wall of the first transmission rod (105) is movably connected to the inner wall of the second transmission rod (205). The second transmission rod (205) is set as a polygonal long rod. The outer wall of the second telescopic rod (201) is fixedly connected to the inner wall of the first limiting sleeve (206).

6. The telescopic and transmission-enabled telescopic rod mechanism according to claim 1, characterized in that: The inner wall of the second telescopic rod (201) is movably connected to the outer wall of the third telescopic rod (301). The inner wall of one end of the third telescopic rod (301) is fixedly connected to the outer wall of the third nest (302). The inner wall of the third nest (302) is rotatably connected to the outer wall of the third transmission nest (303) through a bearing. The inner wall of the third nest (302) is fixedly connected to the outer wall of the third limiting block (304). The third limiting block (304) is located on one side of the third transmission nest (303). A second polygonal groove is opened inside one end of the third transmission nest (303), and the inner wall of the first polygonal groove is movably connected to the outer wall of the second transmission rod (205).

7. The telescopic and transmission-enabled telescopic rod mechanism according to claim 6, characterized in that: The inner wall of the third transmission nest (303) is fixedly connected to the outer wall of one end of the third transmission rod (305). The inner wall of the second transmission rod (205) is movably connected to the inner wall of the third transmission rod (305). The outer wall of the third telescopic rod (301) is fixedly connected to the inner wall of the second limiting sleeve (306). The inner wall of the other end of the third telescopic rod (301) is fixedly connected to the outer wall of the fourth nest (307). The inner wall of the fourth nest (307) is rotatably connected to the outer wall of the fourth transmission nest (308) through a bearing. The inner wall of the fourth nest (307) is fixedly connected to the outer wall of the fourth limiting block (309). The fourth limiting block (309) is located on one side of the fourth transmission nest (308). The other end of the third transmission rod (305) is fixedly connected to the inner wall of the fourth transmission nest (308).

8. The telescopic and transmission-enabled telescopic rod mechanism according to claim 1, characterized in that: The other ends of the first telescopic tube (101) and the second telescopic rod (201) are fixedly connected to the inner wall of the locking sleeve (401). The top of the locking sleeve (401) is connected to both sides of the cam rod (402) through a rotating shaft. The inner wall of the locking sleeve (401) is fixedly connected to the outer wall of the blocking plate (404). The two sets of blocking plates (404) are respectively fixedly connected to the inner wall of one end of the first telescopic tube (101) and the second telescopic rod (201). The first limiting sleeve (206) and the second limiting sleeve (306) are respectively located on one side of the blocking plate (404).

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