CN215908164U

CN215908164U - Sealing cover for unobstructed directional telescopic rod

Info

Publication number: CN215908164U
Application number: CN202121769517.9U
Authority: CN
Inventors: 林杜迫; 侯圣春
Original assignee: Xiamen Baizi Industry &trade Co ltd
Current assignee: Xiamen Baizi Industry &trade Co ltd
Priority date: 2021-08-01
Filing date: 2021-08-01
Publication date: 2022-02-25
Anticipated expiration: 2031-08-01

Abstract

The utility model discloses a sealing cover for a non-resistance directional telescopic rod, which belongs to the field of telescopic rod accessories, and comprises a sleeve, a piston rod and a sealing cover, wherein a piston plate is arranged inside the sleeve, one end of the sleeve is connected with the sealing cover through a detachable connecting mechanism, the piston plate is connected with the piston rod penetrating through the sealing cover, the connecting mechanism comprises a limiting rod arranged on the sealing cover in a sliding manner, a sliding block fixedly arranged at one end of the limiting rod and connected with the side wall at the port part of the sleeve in a sliding manner, and a sliding rod arranged on the sliding block in a sliding manner through an elastic mechanism, one end of the sliding rod can penetrate through the side wall of the sleeve under the support of the elastic mechanism, a threaded ring is arranged on the outer wall of the sliding rod, and a locking nut capable of fixing the sliding rod on the sleeve is sleeved on a thread on the sliding rod. The detachable connection mode between the sealing cover and the sleeve has the advantages of simple structure, time and labor saving in installation and good stabilizing effect.

Description

Sealing cover for unobstructed directional telescopic rod

Technical Field

The utility model relates to the field of telescopic rod accessories, in particular to a sealing cover for an unobstructed directional telescopic rod.

Background

The wheelchair guide board of getting on the bus is a barrier-free facility of getting on the bus, can facilitate for inconvenient people's of action trip, and the baffle needs to realize expandeing through the telescopic link at the practical application in-process, the shrink, so that the baffle when facilitating for people's trip, can also reduce its area on the car, but because the drive baffle expandes, the telescopic link of shrink is after long-term the use, ageing phenomenon can appear in its inside sealing washer or other parts, and because sealed lid dismantlement on it is more troublesome, this maintenance efficiency that will influence people to telescopic link internals greatly.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

The utility model aims to provide a sealing cover for an unobstructed directional telescopic rod, which solves the problems in the prior art.

2. Technical scheme

In order to solve the problems, the utility model adopts the following technical scheme:

the utility model provides a there is not sealed lid for directional telescopic link of hindrance, includes sleeve pipe, piston rod and sealed lid, sheathed tube inside is equipped with the piston board, and sheathed tube one end is connected with sealed lid through detachable coupling mechanism, be connected with the piston rod that runs through sealed lid on the piston board, coupling mechanism including slide locate sealed gag lever post on, fixed locate gag lever post one end and with sleeve pipe port department's lateral wall sliding connection's slider, slide through elastic mechanism and locate on the slider and the slide bar of the sleeve pipe lateral wall that one end can pass under elastic mechanism's support, be equipped with the fillet of thread on the outer wall of slide bar, and the screw has cup jointed the lock nut that can fix the slide bar on the sleeve pipe on the slide bar.

Furthermore, one end of the sealing cover is provided with a plug groove body which is plugged inside the end port of the sleeve and is of an annular structure, the plug groove body is provided with a sealing ring II tightly attached to the inner wall of the sleeve, the plug groove body is provided with an annular groove used for being mounted on the sealing ring II, the middle of the sealing cover is provided with a through hole for the piston rod to pass through, and the inner wall of the through hole is provided with a sealing ring I tightly attached to the piston rod.

Furthermore, the connecting mechanisms are at least provided with two groups and are symmetrically arranged on the sealing cover.

Furthermore, the sealing cover is provided with a slide way for the limiting rod to horizontally pass through, one end of the limiting rod, far away from the sliding block, is formed and provided with a supporting table located on the outer side of the sealing cover, the outer side wall of the sealing cover is provided with a notch, the diameter of the notch is larger than that of the slide way and is used for accommodating the supporting table, and when the sliding rod is fixed on the outer wall of the sleeve by the locking nut, the supporting table is just clamped on the inner side of the notch.

Furthermore, the cross sections of the limiting rod and the slide way are both rectangular structures.

Furthermore, a through hole for the sliding rod to pass through is formed in the side wall of the sleeve, sliding cavities which correspond to the sliding blocks one to one and allow the corresponding sliding blocks to slide are formed in the opening end of the sleeve, and when the sliding rod passes through the through hole under the elastic support of the elastic mechanism, the advancing end of the sealing cover just abuts against the side wall of the sliding cavity.

Furthermore, the free end of the slide bar is provided with an arc inclined plane towards one side of the sealing cover, and an arc notch communicated with the through hole and matched with the arc inclined plane is formed in the side wall of the sleeve.

Furthermore, the elastic mechanism comprises a containing cavity which is arranged inside the sliding block and is used for sliding the sliding rod, and a spring which is arranged inside the containing cavity and is used for elastically supporting one end of the sliding rod, wherein the sliding rod extends to the maximum degree on the sliding block when the spring is in the natural length.

Furthermore, the outer wall of the sliding rod at one end inside the sliding block is provided with at least two limiting blocks, and the side wall of the accommodating cavity is provided with a sliding groove for the limiting blocks to slide up and down.

3. Advantageous effects

1. When the sealing cover is arranged on the sleeve, the sliding rod on the sliding block is moved to the position of the through hole on the sleeve through the sliding connection of the limiting rod and the sliding block with the sealing cover and the sleeve, the sliding rod can automatically pass through the through hole under the elastic support of the elastic mechanism at the moment, then the locking nut is screwed on the end part of the sliding rod to lock the sliding rod on the sleeve (at the moment, the sliding rod is in the limit state of extension on the sliding block), and the sealing cover can be fixed on the sleeve because the sliding block and the limiting rod are fixedly connected, when the sealing cover needs to be detached from the sleeve, the locking nut only needs to be rotated down from the sliding rod to press the sliding rod to recover the sliding rod into the sliding block, then the limiting rod is manually pulled to pull the sliding block to one side of the sealing cover, so that the detachment of the sealing cover is completed, and the connection mode of the sealing cover and the sleeve is obtained, the device has the advantages of simple structure, time and labor saving in installation and good stabilizing effect;

2. according to the utility model, the arc-shaped inclined surface on the sliding rod is matched with the arc-shaped notch on the through hole, so that when the sliding rod is manually pressed to contract, the sliding block can be quickly pulled to one side of the sealing cover through the sliding fit of the arc-shaped inclined surface and the arc-shaped notch, and thus, conditions are provided for people to detach the sealing cover.

3. The limiting rod and the slide way rectangular structure are arranged, so that the limiting rod and the slide way rectangular structure can limit the slide rod on the slide block when the limiting rod and the slide way rectangular structure slide, and the slide rod can smoothly pass through the through hole under the elastic support of the spring.

4. When the advancing end of the sealing cover abuts against the side wall of the sliding cavity, the sliding rod on the sliding block can just penetrate through the through hole, and the arrangement is convenient for people to install the sliding block and the sliding rod on the sliding block.

Drawings

FIG. 1 is a schematic view showing the connection of a sealing cap with a sleeve;

FIG. 2 is a side view of the internal structure of the present invention;

FIG. 3 is a schematic right view of the sealing cap of FIG. 2;

FIG. 4 is a schematic right side view of the sleeve of FIG. 1;

fig. 5 is an enlarged schematic view of a portion a in fig. 1.

Reference numerals: 1. a sleeve; 2. a piston rod; 3. a piston plate; 4. a sealing cover; 5. perforating; 6. a first sealing ring; 7. a slot body is inserted; 8. an annular groove; 9. a second sealing ring; 10. a limiting rod; 11. a slideway; 12. a saddle; 13. a notch; 14. a slider; 15. a slide bar; 16. a limiting block; 17. a chute; 18. a spring; 19. locking the nut; 20. a through hole; 21. an arc-shaped inclined surface; 22. an arc-shaped notch; 23. a slide chamber.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Examples

As shown in fig. 1, 2, 5, a seal cover for a non-resistance directional telescopic rod comprises a sleeve 1, a piston rod 2 and a seal cover 4, wherein a piston plate 3 is arranged inside the sleeve 1, one end of the sleeve 1 is connected with the seal cover 4 through a detachable connecting mechanism, the piston plate 3 is connected with the piston rod 2 penetrating through the seal cover 4, at least two groups of connecting mechanisms are arranged on the piston plate 3 and are symmetrically arranged on the seal cover 4, the number and positions of the connecting mechanisms can be arranged to connect a plurality of positions between the seal cover 4 and the sleeve 1 so as to ensure the stability of the connection between the two, each connecting mechanism comprises a limiting rod 10 slidably arranged on the seal cover 4, a sliding block 14 fixedly arranged at one end of the limiting rod 10 and slidably connected with a side wall at a port of the sleeve 1, and a sliding rod 15 slidably arranged on the sliding block 14 through an elastic mechanism and having one end capable of penetrating through the side wall of the sleeve 1 under the support of the elastic mechanism, the cross sections of the limiting rod 10 and the slide way 11 are rectangular structures, the limiting rod 10 and the slide way 11 can limit the slide rod 15 on the slide block 14 when sliding through the rectangular structures of the limiting rod 10 and the slide way 11, so that the slide rod 15 can smoothly pass through the through hole 20 under the elastic support of the spring 18, a threaded ring is arranged on the outer wall of the slide rod 15, and a locking nut 19 capable of fixing the slide rod 15 on the sleeve 1 is sleeved on the slide rod 15 through threads;

as shown in fig. 1 and 2, an insertion groove body 7 which is inserted into the inner side of the port of the sleeve 1 and has an annular structure is formed at one end of the sealing cover 4, a sealing ring two 9 which is tightly attached to the inner wall of the sleeve 1 is arranged on the insertion groove body 7, an annular groove 8 which is used for being installed on the sealing ring two 9 is formed in the insertion groove body 7, a through hole 5 through which the piston rod 2 passes is formed in the middle of the sealing cover 4, a sealing ring one 6 which is tightly attached to the piston rod 2 is installed on the inner wall of the through hole 5, and the sealing ring one 6 and the sealing ring two 9 are respectively contacted with the outer wall of the piston rod 2 and the inner wall of the sleeve 1 to seal the sealing cover 4, the piston rod 2 and the sleeve 1;

as shown in fig. 2 and 3, a slide 11 for a limiting rod 10 to horizontally pass through is formed on the sealing cover 4, a tray 12 located outside the sealing cover 4 is formed at one end of the limiting rod 10 far away from the slide 14, a notch 13 with a diameter larger than that of the slide 11 and used for accommodating the tray 12 is formed on the outer side wall of the sealing cover 4, when the slide rod 15 is fixed on the outer wall of the casing 1 by a locking nut 19, the tray 12 is just clamped inside the notch 13, one end of the limiting rod 10 can be limited on the outer side wall of the sealing cover 4 through the tray 12, so that a worker can conveniently pull the limiting rod 10, and further the sealing cover 4 is conveniently detached and installed;

as shown in fig. 4 and 5, through holes 20 for the sliding rods 15 to pass through are formed in the side wall of the sleeve 1, sliding cavities 23 which correspond to the sliding blocks 14 one to one and are used for the corresponding sliding blocks 14 to slide are formed in the opening end of the sleeve 1, when the sliding rods 15 pass through the through holes 20 under the elastic support of the elastic mechanism, the advancing ends of the sealing covers 4 just abut against the side wall of the sliding cavities 23, and when the advancing ends of the sealing covers 4 just abut against the side wall of the sliding cavities 23, the sliding rods 15 on the sliding blocks 14 just can pass through the through holes 20, so that people can conveniently install the sliding blocks 14 and the sliding rods 15 thereon;

as shown in fig. 5, the free end of the sliding rod 15 is provided with an arc-shaped inclined surface 21 facing one side of the sealing cover 4, the side wall of the sleeve 1 is provided with an arc-shaped notch 22 which is communicated with the through hole 20 and is matched with the arc-shaped inclined surface 21, the arc-shaped inclined surface 21 on the sliding rod 15 is matched with the arc-shaped notch 22 on the through hole 20, so that when the sliding rod 15 is manually pressed to be contracted, the sliding block 14 can be rapidly pulled to one side of the sealing cover 4 through the sliding fit of the arc-shaped inclined surface 21 and the arc-shaped notch 22, and a condition is provided for people to detach the sealing cover 4;

as shown in fig. 5, the elastic mechanism includes a cavity provided inside the slider 14 and allowing the sliding rod 15 to slide, and a spring 18 provided inside the cavity and elastically supporting one end of the sliding rod 15, the sliding rod 15 extends on the slider 14 to the maximum when the spring 18 is in a natural length, and when the sliding rod 15 is pushed to a position vertically aligned with the through hole 20, the sliding rod 15 automatically penetrates through the through hole 20 under the elastic support of the spring 18, so that the sliding rod 15 is automatically ejected, which greatly facilitates the installation of the sealing cover 4 by people;

as shown in fig. 5, at least two limiting blocks 16 are disposed on the outer wall of the sliding rod 15 at one end inside the sliding block 14, a sliding groove 17 for the limiting blocks 16 to slide up and down is disposed on the side wall of the accommodating cavity, and one end of the sliding rod 15 can be limited in the accommodating cavity inside the sliding block 14 by the sliding of the limiting blocks 16 and the sliding groove 17, so as to prevent the derailment of the sliding rod 15.

The specific application process of the sealing cover for the unobstructed directional telescopic rod is as follows: when the sealing cover 4 is installed on the sleeve 1, the sliding blocks 14 are aligned with the sliding cavities 23 on the sleeve 1 one by one, the limiting rods 10 are pushed to insert the sliding blocks 14 into the sliding cavities 23, then the limiting rods 10 are continuously pushed and the advancing ends of the sliding blocks 14 abut against the side walls of the sliding cavities 23, at the moment, the sliding rods 15 on the sliding blocks 14 are exactly aligned with the through holes 20 vertically, the sliding rods 15 automatically penetrate through the through holes 20 under the elastic support of the springs 18, then the locking nuts 19 are screwed on the end parts of the sliding rods 15, and the sliding rods 15 are locked on the sleeve 1, so that the sealing cover 4 can be fixed on the sleeve 1;

when the sealing cover 4 needs to be detached from the sleeve 1, the locking nut 19 only needs to be rotated down from the sliding rod 15, the sliding rod 15 is pressed to be recovered into the sliding block 14, then the limiting rod 10 is pulled manually to pull the sliding block 14 to one side of the sealing cover 4, so that the sealing cover 4 is detached quickly, people can conveniently overhaul parts in the sleeve 1, and the using process of the sealing cover for the unobstructed directional telescopic rod is completed.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims

1. A sealing cover for a non-resistance directional telescopic rod comprises a sleeve (1), a piston rod (2) and a sealing cover (4), wherein a piston plate (3) is arranged inside the sleeve (1), one end of the sleeve (1) is connected with a sealing cover (4) through a detachable connecting mechanism, the piston plate (3) is connected with a piston rod (2) which penetrates through the sealing cover (4), it is characterized in that the connecting mechanism comprises a limiting rod (10) arranged on the sealing cover (4) in a sliding way, a sliding block (14) fixedly arranged at one end of the limiting rod (10) and connected with the side wall at the port of the sleeve (1) in a sliding way, a sliding rod (15) arranged on the sliding block (14) in a sliding way through an elastic mechanism, and the side wall of the sleeve (1) can penetrate through the sliding rod (15) under the support of the elastic mechanism, a thread ring is arranged on the outer wall of the sliding rod (15), and a lock nut (19) capable of fixing the sliding rod (15) on the sleeve (1) is sleeved on the sliding rod (15) through threads.

2. The seal cover for the unobstructed directional telescopic rod as claimed in claim 1, wherein a plug groove body (7) which is plugged inside the port of the sleeve (1) and is of an annular structure is formed at one end of the seal cover (4), a seal ring II (9) which is tightly attached to the inner wall of the sleeve (1) is arranged on the plug groove body (7), an annular groove (8) which is used for being mounted on the seal ring II (9) is formed in the plug groove body (7), a through hole (5) for the piston rod (2) to pass through is formed in the middle of the seal cover (4), and a seal ring I (6) which is tightly attached to the piston rod (2) is mounted on the inner wall of the through hole (5).

3. The seal cover for an unobstructed directional telescopic rod as in claim 1, wherein said connecting means are provided in at least two groups and symmetrically arranged on the seal cover (4).

4. The seal cover for the unobstructed directional telescopic rod according to claim 1, wherein a slide way (11) for the limiting rod (10) to horizontally pass through is formed on the seal cover (4), a saddle (12) located outside the seal cover (4) is formed at one end of the limiting rod (10) far away from the slider (14), a notch (13) having a diameter larger than that of the slide way (11) and used for accommodating the saddle (12) is formed on the outer side wall of the seal cover (4), and when the slide rod (15) is fixed on the outer wall of the casing (1) by the locking nut (19), the saddle (12) is just clamped inside the notch (13).

5. The sealing cover for the unobstructed directional telescopic rod of claim 1, wherein the cross-section of the stop rod (10) and the cross-section of the slide way (11) are both rectangular structures.

6. The sealing cover for the unobstructed directional telescopic rod according to claim 1, wherein the side wall of said sleeve (1) is equipped with a through hole (20) for the sliding rod (15) to pass through, the open end of said sleeve (1) is equipped with a sliding cavity (23) corresponding to the sliding block (14) one by one and for the sliding block (14) to slide, when the sliding rod (15) passes through the through hole (20) under the elastic support of the elastic mechanism, the advancing end of the sealing cover (4) just props against the side wall of the sliding cavity (23).

7. The seal cover for the unobstructed directional telescopic rod according to claim 1, wherein the free end of the sliding rod (15) has an inclined arc surface (21) facing the side of the seal cover (4), and the side wall of the sleeve (1) has an arc notch (22) communicating with the through hole (20) and matching with the inclined arc surface (21).

8. The seal cover for an unobstructed directional telescopic rod according to claim 1, characterized in that said elastic means comprise a housing provided inside the slider (14) and allowing the sliding of the sliding rod (15), a spring (18) provided inside the housing and elastically supporting one end of the sliding rod (15), said spring (18) being such as to allow the sliding rod (15) to extend to the maximum on the slider (14) when the spring (18) is at its natural length.

9. The sealing cover for the unobstructed directional expansion link according to claim 8, wherein the outer wall of the slide bar (15) at the end inside the slide block (14) is provided with at least two limiting blocks (16), and the side wall of the cavity is provided with a sliding slot (17) for the limiting blocks (16) to slide up and down.