CN212935696U

CN212935696U - Telescopic rod

Info

Publication number: CN212935696U
Application number: CN202022094509.0U
Authority: CN
Inventors: 叶伟青
Original assignee: Shaoxing Shangyu Rongda Industrial Co ltd
Current assignee: Shaoxing Shangyu Rongda Industrial Co ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-04-09
Anticipated expiration: 2030-09-22

Abstract

The application relates to the field of flexible instrument, especially, relate to a telescopic link, including fixed cover, flexible subassembly and drive assembly, offer on the fixed cover and be used for setting up the opening of flexible subassembly, offer on the fixed cover and be used for setting up drive assembly's hole, opening place plane does not pass through the hole. The application has the following effects: the hole that is used for setting up drive assembly in this application is integrated into one piece, and the concatenation forms not, improves the structural stability of hole and fixed cover, destroys the leakproofness of fixed cover when preventing the marginal vibration in drive assembly and hole.

Description

Telescopic rod

Technical Field

The application relates to the field of telescopic tools, in particular to a telescopic rod.

Background

The telescopic rod is an electric driving device which converts the rotary motion (or manual rotary motion) of a motor into the linear reciprocating motion of a push rod. The device can be used as an execution machine in various simple or complex process flows to realize remote control, centralized control or automatic control.

In the related art, the fixing sleeve of the telescopic rod is usually composed of two shells, as shown in fig. 1, a first shell 701 and a second shell 702 are spliced to form a hole on the fixing sleeve and the fixing sleeve, and a driving assembly is inserted into the hole and is in transmission fit with the telescopic assembly.

With respect to the related art in the above, the inventors consider that: because two rotating rods extend out of the shell, one rotating rod is connected with the motor to realize driving, and because the rotating rods adopt the extension and retraction realized in a screw rod transmission mode, the rotating rods need to rotate at a high speed during working, and although the rotating rods rotate axially, certain radial force can still be generated to act on the shell in the high-speed working process, so that certain influence is generated on the split shell.

In addition, because the other rotating rod is arranged to be connected with other telescopic rods to realize linkage of the two rotating rods, the linked telescopic rods inevitably generate radial thrust to the rotating rod during telescopic work, so that acting force on the two shells is increased, and therefore, the problem of poor sealing performance caused by insufficient tightness of a connecting edge between the two shells is easily caused in a long-term use process.

SUMMERY OF THE UTILITY MODEL

In order to improve the stability and the leakproofness of telescopic link, this application provides a telescopic link.

The application provides a telescopic link adopts following technical scheme:

the utility model provides a telescopic link, includes fixed cover, flexible subassembly and drive assembly, offer on the fixed cover and be used for setting up the opening of flexible subassembly, offer on the fixed cover and be used for setting up drive assembly's hole, the opening place plane does not pass through the hole.

Through adopting above-mentioned technical scheme, the hole that is used for setting up drive assembly in this application is integrated into one piece, and not the concatenation forms, improves the structural stability of hole and fixed cover, destroys the leakproofness of fixed cover when preventing the marginal vibration in drive assembly and hole.

Optionally, the both ends of fixed cover are provided with the opening, fixed sheathe in through the hole sets up drive assembly, be provided with first shrouding on the opening of fixed cover one end, be provided with on the opening of the fixed cover other end flexible subassembly, flexible subassembly with drive assembly transmission is connected, be provided with on the flexible subassembly and be used for sealing the second shrouding of fixed cover makes fixed cover inside forms the enclosure space.

By adopting the technical scheme, the telescopic assembly is arranged on the fixed sleeve in the opening extending direction, the driving assembly is arranged in the hole arranging direction, and the rotary motion of the driving assembly is converted into the linear motion of the telescopic assembly; the first sealing plate and the second sealing plate seal the driving component and the transmission part of the telescopic component in the fixing sleeve, so that the external interference is reduced, and the accuracy of the telescopic rod is improved.

Optionally, the fixing sleeve and the first sealing plate are integrally formed.

Through adopting above-mentioned technical scheme, first shrouding improves the overall stability of fixed cover with fixed cover integrated into one piece, has eliminated the gap between first shrouding and the fixed cover simultaneously, improves the sealed effect of fixed cover.

Optionally, a first extending edge perpendicular to the plane of the hole is disposed on the edge of the hole.

Through adopting above-mentioned technical scheme, first limit that prolongs is used for improving the spacing effect of drive assembly on fixed cover, improves the stability of fixed cover structure.

Optionally, a second extending edge is arranged on an edge of the second sealing plate, and the second extending edge is perpendicular to the second sealing plate and faces the first sealing plate.

By adopting the technical scheme, when the second sealing plate seals the fixing sleeve, the second extending edge is matched with the fixing sleeve, so that the limiting effect between the second sealing plate and the fixing sleeve is improved, and the second sealing plate is prevented from sliding on the fixing sleeve in a staggered manner when being installed; meanwhile, the second extending edge covers a gap between the second sealing plate and the fixing sleeve, and the sealing effect of the fixing sleeve is further improved.

Optionally, the second extending edge and the limiting component between the fixing sleeve include a notch arranged on the second plate and a protrusion arranged on the fixing sleeve, and the notch is matched with the protrusion.

Through adopting above-mentioned technical scheme, conveniently distinguish the direction of installation when the installation, improve the spacing effect between second shrouding and the fixed cover simultaneously, avoid the second shrouding to slide on the fixed cover when the installation.

Optionally, be provided with between the first shrouding with the second shrouding and be used for fixing the first fixed subassembly of first shrouding, second shrouding, first fixed subassembly includes a plurality of bolts and offers in a plurality of first fixed orificess on first shrouding, the second shrouding, be provided with the cell body that is used for wearing to establish the bolt on the fixed cover inner wall, the bolt process cell body and first fixed orifices will first shrouding with the second shrouding is fixed in on the fixed cover.

Through adopting above-mentioned technical scheme, the bolt alternates the first fixed orifices of second shrouding along the first fixed orifices of cell body from first shrouding in, and easy to assemble, the reinforcing that fixed cover can be regarded as to the cell body simultaneously is stupefied, improves the stability of fixed cover.

Optionally, the driving assembly includes a rotating rod inserted into the hole, and a first bevel gear is sleeved on a portion of the rotating rod located in the closed space.

Through adopting above-mentioned technical scheme, through the electronic or manual drive dwang in external world to drive first bevel gear with drive power transmission to the flexible subassembly on.

Optionally, the telescopic assembly comprises a screw rod, one end of the screw rod is provided with a second bevel gear, the second bevel gear is in transmission fit with the first bevel gear, the screw rod is sleeved with a nut and a hollow inner tube, the nut is integrated with the inner tube, a hollow outer tube is sleeved outside the inner tube, a sliding assembly is arranged between the outer tube and the nut, the outer tube is close to one end of the second bevel gear and provided with the second sealing plate, and the second sealing plate is matched with an opening of the fixing sleeve.

By adopting the technical scheme, the rotating motion is converted into the linear motion of the nut through the transmission of the first bevel gear and the second bevel gear, and the nut and the inner pipe are integrated, so that the inner pipe is ejected out of the outer pipe; the second sealing plate arranged on the outer pipe is fixedly connected with the telescopic assembly, so that the fixing sleeve is more convenient to install in a closed mode.

Optionally, the sliding assembly comprises a plurality of sliding rails arranged on the inner wall of the outer pipe and a plurality of grooves arranged on the nut, and the sliding rails are matched with the grooves.

Through adopting above-mentioned technical scheme, avoid nut and screw rod to rotate together, the direction of motion of restriction nut ensures that the inner tube is driven by the nut and is flexible.

Drawings

Fig. 1 is a schematic view of a related art harness.

Fig. 2 is a perspective view of the extension pole of the present application.

Fig. 3 is an exploded view of the telescoping pole of the present application.

Fig. 4 is an exploded view of a swivelling lever according to the present application.

Figure 5 is an exploded view of the telescoping assembly of the telescoping pole of the present application.

Figure 6 shows a first exploded view of the harness of the telescopic rod according to the present application.

FIG. 7 is a cross-sectional view of the extension pole of the present application.

FIG. 8 is a schematic view of a spacing assembly of the extension pole of the present application.

Figure 9 shows a second exploded view of the harness of the telescopic rod according to the present application.

Description of reference numerals: 100. fixing a sleeve; 101. An aperture; 1011. a first hole; 1012. a second hole; 102. a first extending edge; 103. an opening; 200. a drive assembly; 201. A fixing sheet; 202. a first bearing; 203. rotating the rod; 204. rotating the block; 205. a first bevel gear; 206. sealing the sheet; 300. a telescoping assembly; 301. a screw; 302. a second bevel gear; 303. a second bearing; 304. a nut; 305. an inner tube; 306. an outer tube; 307. a slide rail; 308. a groove; 309. reinforcing edges; 310. a second fixing hole; 311. a fixing ring; 312. a seal ring; 401. a first seal plate; 402. a second seal plate; 403. a bolt; 404. a first fixing hole; 405. a sleeve body; 406. a trough body; 501. a drain hole; 502. a drain bolt; 601. a bump; 602. a limiting block; 603. a notch; 701. a first housing; 702. a second housing.

Detailed Description

The present application is described in further detail below with reference to figures 2-9.

The embodiment of the application discloses telescopic link.

Example 1:

as shown in fig. 2 and 3, the telescopic rod comprises a fixing sleeve 100, a telescopic assembly 300 and a driving assembly 200, wherein two ends of the fixing sleeve 100 are provided with openings 103, the fixing sleeve 100 is provided with holes 101, the opening direction of the holes 101 is perpendicular to the opening direction of the openings 103, and the plane of the end face of each opening 103 does not pass through the hole.

The hole 101 includes a first hole 1011 and a second hole 1012, the first hole 1011 and the second hole 1012 are respectively disposed on two opposite surfaces of the fixing sleeve 100, the driving assembly 200 is respectively disposed in the fixing sleeve 100 through the first hole 1011 and the second hole 1012, first extending edges 102 are disposed at edges of the first hole 1011 and the second hole 1012, and the first extending edges 102 are perpendicular to hole surfaces of the first hole 1011 and the second hole 1012 and face an outer space of the fixing sleeve 100. A coupling assembly is provided between the harness 100 and the drive assembly 200.

The driving assembly 200: as shown in fig. 4 and 5, the rotating rod 203 comprises a rotating rod 203, the rotating rod 203 penetrates through the fixing sleeve 100 through a first hole 1011 and a second hole 1012 respectively, the rotating block 204 is sleeved on a part of the rotating rod 203 located outside the fixing sleeve 100, the rotating block 204 is driven by external power, the first bevel gear 205 is sleeved on a part of the rotating rod 203 located in the fixing table, and the second bevel gear 302 is in transmission connection with the telescopic assembly 300.

Connecting components: as shown in fig. 4, including first bearing 202, stationary blade 201 and sealing strip 206, first bearing 202 is located first hole 1011 and is located the dwang 203 in the cover, the sealing strip 206 cover is located the dwang 203 on, sealing strip 206 is used for sealing up hole 101, still the cover is equipped with stationary blade 201 on the dwang, stationary blade 201 overlaps and is located the dwang 203 and sets up in first extending limit 102, pass through threaded connection between stationary blade 201 and the fixed cover 100, compress tightly the sealing strip, the coupling assembling structure on the second hole 1012 is the same with the coupling assembling structure on first hole 1011.

A first sealing plate 401 is disposed on one opening 103 of the fixing sleeve 100, a telescopic assembly 300 is disposed on the other opening 103, a second sealing plate 402 is disposed on the telescopic assembly 300, and the first sealing plate 401 and the second sealing plate 402 form a closed space inside the fixing sleeve 100.

The telescoping assembly 300: as shown in fig. 2 and 5, the fixing sleeve comprises a screw 301, the screw 301 is inserted into a second closing plate 402 and enters the fixing sleeve 100, a second bearing 303 is arranged between the screw 301 and the second closing plate 402, a second bevel gear 302 is arranged at one end of the screw 301 close to a first bevel gear 205, the first bevel gear 205 and the second bevel gear 302 are in meshing transmission to drive the screw 301 to rotate, a nut 304 and a hollow inner tube 305 are sleeved on the screw 301, and the inner tube 305 and the nut 304 are fixedly connected or integrally formed; a hollow outer pipe 306 is sleeved outside the inner pipe 305, and a sliding component for limiting the axial sliding of the nut 304 on the outer pipe 306 is arranged between the nut 304 and the outer pipe 306.

As shown in fig. 7, a fixing ring 311 for ensuring the outer pipe 306 and the inner pipe 305 are provided in an annular space formed between the inner pipe 305 and the outer pipe 306, and a seal ring 312 which is in interference fit with the annular space is also provided in the annular space. A second sealing plate 402 used for matching with the fixing sleeve 100 is arranged on the end surface of the outer tube 306 close to the second bevel gear 302, and a second fixing component is arranged between the second sealing plate 402 and the outer tube 306.

A second fixing component: as shown in fig. 5, the wall of the outer pipe 306 comprises a reinforcing rib 309 arranged on the wall of the outer pipe 306, the reinforcing rib 309 is parallel to the axial direction of the outer pipe 306, a second fixing hole 310 with threads is arranged in the reinforcing rib 309, and the second sealing plate 402 is in threaded connection with the second fixing hole 310 through screws.

A sliding assembly: as shown in fig. 5, the nut device comprises a plurality of sliding rails 307 arranged on the inner wall of the outer tube 306 and grooves 308 arranged on the nut 304, the sliding rails 307 are parallel to the axial direction of the outer tube 306, and the grooves 308 are in sliding fit with the sliding rails 307, so that the nut 304 is driven by the screw 301 to make linear motion in the axial direction of the outer tube 306.

As shown in fig. 2, a first fixing assembly is disposed between the first closing plate 401 and the second closing plate 402, the first fixing assembly includes a plurality of second fixing holes 310 and an equal number of bolts 403, the number of the second fixing holes 310 is 4, a slot 406 is disposed on the inner wall of the fixing sleeve 100, and the slot 406 is used for passing through the bolts 403; the side of the second sealing plate 402, which is far away from the first sealing plate 401, is provided with a plurality of sleeves 405 used for being matched with the bolts 403, the sleeves 405 are provided with internal threads, and the bolts 403 are in threaded connection with the sleeves 405 after reaching the first fixing holes 404 of the second sealing plate 402 through the grooves 406 from the first fixing holes 404 on the first sealing plate 401, so that the first sealing plate 401, the second sealing plate 402 and the fixing sleeve 100 are fixedly connected.

The first cover plate 401 is provided with a drain hole 501, a drain bolt 502 is screwed to the drain hole 501, and the drain bolt 502 is opened to drain water when water is supplied.

The edge of the second sealing plate 402 is provided with a second extending edge, the second extending edge is perpendicular to the second sealing plate 402 and parallel to the first sealing plate 401, and the second extending edge abuts against the outer wall of the fixing sleeve 100 when the second sealing plate 402 is fixed on the fixing sleeve 100.

As shown in fig. 8, a limiting component is disposed between the second sealing plate 402 and the fixing sleeve 100, the limiting component includes a limiting block 602 disposed on the second sealing plate 402 and a protrusion 601 disposed on the second extending edge, a notch 603 is disposed on the limiting block 602, and the protrusion 601 is matched with the notch 603.

The implementation principle of an extension rod in the embodiment of the application is as follows:

set up opening 103 and hole 101 on the fixed cover 100 in this application, when drive assembly 200 and the transmission of flexible subassembly 300 were joined in marriage, drive assembly 200 produced vibrations to the hole and collided, because the hole is complete an organic whole, and not the concatenation forms, improves overall stability and seal.

During production and assembly, the driving assembly 200 is firstly assembled in the fixing sleeve 100, after the telescopic assembly 300 is assembled, the second sealing plate 402 is fixed on the outer tube, the second bevel gear 302 on the telescopic assembly 300 is in transmission connection with the driving assembly 200 in the fixing sleeve 100, and the fixing sleeve 100 and the second sealing plate 402 are locked by bolts.

During operation, the rotating rod 203 is rotated by an external force to drive the first bevel gear 205 to rotate, the first bevel gear 205 drives the second bevel gear 302 to rotate, the second bevel gear 302 drives the screw 301 to rotate, the screw 301 is axially fixed, and the nut 304 is circumferentially fixed, so that the nut 304 sleeved on the screw 301 slides on the inner wall of the outer tube 306 under the drive of the screw 301, the nut 304 and the inner tube 305 are integrally formed, so that the inner tube 305 is axially movable in the outer tube 306, and the end part of the inner tube 305 extends out of or retracts back on the outer tube 306.

Example 2:

as shown in fig. 9, the present embodiment is different from embodiment 1 only in that the first cover plate 401 is integrated with the fixing sleeve 100.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A telescopic rod is characterized in that: including fixed cover (100), flexible subassembly (300) and drive assembly (200), set up on fixed cover (100) and be used for setting up opening (103) of flexible subassembly (300), set up on fixed cover (100) and be used for setting up the hole of drive assembly (200), opening (103) place plane does not pass through the hole.

2. The telescopic rod according to claim 1, wherein openings (103) are provided at both ends of the fixed sleeve (100), the driving assembly (200) is provided on the fixed sleeve (100) through the hole, a first sealing plate (401) is provided on the opening (103) at one end of the fixed sleeve (100), the telescopic assembly (300) is provided on the opening (103) at the other end of the fixed sleeve (100), the telescopic assembly (300) is in transmission connection with the driving assembly (200), and a second sealing plate (402) for sealing the fixed sleeve (100) is provided on the telescopic assembly (300), so that a closed space is formed inside the fixed sleeve (100).

3. A telescopic rod according to claim 2, characterized in that said fixing sleeve (100) is integral with said first closing plate (401).

4. A telescopic rod according to claim 2, characterized in that: the edge of the hole is provided with a first extending edge (102) which is vertical to the plane of the hole.

5. A telescopic rod according to claim 2, characterized in that: and a second extending edge is arranged on the edge of the second sealing plate (402), and the second extending edge is perpendicular to the second sealing plate (402) and faces the first sealing plate (401).

6. A telescopic rod according to claim 2, characterized in that: the first fixing component is arranged between the first sealing plate (401) and the second sealing plate (402) and used for fixing the first sealing plate (401) and the second sealing plate (402), the first fixing component comprises a plurality of bolts (403) and a plurality of first fixing holes (404) formed in the first sealing plate (401) and the second sealing plate (402), a groove body (406) used for penetrating the bolts (403) is formed in the inner wall of the fixing sleeve (100), and the bolts (403) pass through the groove body (406) and the first fixing holes (404) to fix the first sealing plate (401) and the second sealing plate (402) on the fixing sleeve (100).

7. A telescopic rod according to claim 2, characterized in that: the driving assembly (200) comprises a rotating rod (203) inserted into the hole, and a first bevel gear (205) is sleeved on the part, located in the closed space, of the rotating rod (203).

8. The telescopic rod according to claim 7, wherein: the telescopic assembly (300) comprises a screw rod (301), a second bevel gear (302) is arranged at one end of the screw rod (301), the second bevel gear (302) is in transmission fit with the first bevel gear (205), a nut (304) and a hollow inner tube (305) are sleeved on the screw rod (301), the nut (304) and the inner tube (305) are integrated, a hollow outer tube (306) is sleeved outside the inner tube (305), a sliding assembly is arranged between the outer tube (306) and the nut (304), one end, close to the second bevel gear (302), of the outer tube (306) is provided with a second sealing plate (402), and the second sealing plate (402) is matched with an opening of the fixing sleeve (100).

9. The telescopic rod of claim 8, wherein: the sliding assembly comprises a plurality of sliding rails (307) arranged on the inner wall of the outer pipe (306) and a plurality of grooves (308) arranged on the nut (304), and the sliding rails (307) are matched with the grooves (308).