CN204061412U - A kind of fitness equipment oil cylinder with sectional damping controlling device - Google Patents
A kind of fitness equipment oil cylinder with sectional damping controlling device Download PDFInfo
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- CN204061412U CN204061412U CN201420532773.XU CN201420532773U CN204061412U CN 204061412 U CN204061412 U CN 204061412U CN 201420532773 U CN201420532773 U CN 201420532773U CN 204061412 U CN204061412 U CN 204061412U
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- adjusting head
- spill piece
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Abstract
The utility model provides a kind of fitness equipment oil cylinder with sectional damping controlling device.It solve existing cylinder damping and regulate unstable, coarse problem.The utility model comprises cylinder body, the port of cylinder body is sealed by spill piece and adjusting head, piston rod runs through adjusting head, the sheathed spill piece in periphery of adjusting head, adjusting head is offered by being deep to shallow annular damper groove, annular damper groove is communicated with inner cylinder body, spill piece sets out oilhole, the inner of oil outlet is communicated with above-mentioned annular damper groove, the outer end of oil outlet is communicated with outer oil cylinder, inner ring step is set in the internal diameter of spill piece, inner ring step is offered a blind hole, spring is placed in blind hole, steel ball is established on outer spring end top, projection positioning dish on the external diameter of adjusting head, positioning dish reclines mutually with inner ring step, and the bottom surface of positioning dish is offered some gear grooves forming location for embedding steel ball.The utility model structure is simple, cost is low, and during adjustment, feel is clear, chooses shelves and precisely stablizes.
Description
Technical field
The utility model belongs to oil cylinder technical field, relates to a kind of oil cylinder providing resistance in fitness equipments, particularly a kind of fitness equipment oil cylinder with sectional damping controlling device.
Background technique
Fitness equipment oil cylinder, refer to that aiming at all kinds of fitness equipments provides damping force, to substitute a kind of mechanical device of various pouring weight and spring, its damping force provided has force value stabilization, adjustable, the feature that noise is little, make compact integral structure simple, easy accessibility, is widely used in all kinds of fitness equipments at present.
Cylinder damping controlling device, specially refers to a kind of mechanical device for damping adjusting force value in oil cylinder, at present, is widely used in needing to provide in all kinds of medium-to-high grade bodybuilding equipment of different damping force value.
Damping adjustment device of oil cylinder for exerciser in the market, mostly adopts continous way regulative mode, exist feel when regulating unintelligible, adjust not in place, the difficult right shortcoming of scale; And existing sectional damping controlling device, because complex structure, cost remain high, be also difficult to mass production applications.
Summary of the invention
The purpose of this utility model there are the problems referred to above for existing technology, proposes a kind of elastic card bit architecture setting up each damping force gear, further precisely and stablize the fitness equipment oil cylinder with sectional damping controlling device that damping force regulates and controls.
The purpose of this utility model realizes by following technical proposal: a kind of fitness equipment oil cylinder with sectional damping controlling device, comprise cylinder body, described cylinder body has outer cylinder body and inner cylinder body, interspersed piston rod in described inner cylinder body, the port of described cylinder body is sealed by spill piece and adjusting head, described piston rod runs through adjusting head, the sheathed spill piece in periphery of described adjusting head, described adjusting head is offered by being deep to shallow annular damper groove, described annular damper groove is communicated with inner cylinder body, described spill piece sets out oilhole, the inner of described oil outlet is communicated with above-mentioned annular damper groove, the outer end of described oil outlet is communicated with outer oil cylinder, inner ring step is set in the internal diameter of described spill piece, inner ring step is offered a blind hole, spring is placed in described blind hole, steel ball is established on outer spring end top, projection positioning dish on the external diameter of described adjusting head, described positioning dish reclines mutually with inner ring step, and the bottom surface of positioning dish is offered some gear grooves forming location for embedding steel ball.
Originally have in the fitness equipment oil cylinder of sectional damping controlling device, one-piece cylinder is double layer construction, i.e. the sheathed inner cylinder body of outer cylinder body, is inner chamber thus, is exocoel, is all full of hydraulic oil in inner chamber and exocoel between outer cylinder body and inner cylinder body in inner cylinder body.Spill piece and adjusting head all have in through central shaft hole, and spill piece is socketed in the outside of adjusting head, and piston rod stretches in the inner chamber of inner cylinder body through the central shaft hole of adjusting head, and piston rod overlaps piston admittedly.
Have in the fitness equipment oil cylinder of sectional damping controlling device above-mentioned, the sheathed noise reduction cover in periphery of described spill piece, described noise reduction cover has annular cavity, and annular cavity is communicated with the oil outlet of spill piece, and annular cavity is also communicated with outer cylinder body.The annular cavity of noise reduction cover is buckled on the port of oil outlet outer end, gap is there is between noise reduction cover and the outer wall of spill piece, this gap can be communicated with outer cylinder body, and oil outlet, the annular cavity of noise reduction cover, gap and oil cylinder exocoel form path thus, but the path sizes of this path changes.
Have in the fitness equipment oil cylinder of sectional damping controlling device above-mentioned, the peripheral closure of described spill piece and outer cylinder body establishes rotary regulating sleeve, and the end of described rotary regulating sleeve is connected mutually with the external part of adjusting head.The front end of rotary regulating sleeve has inflection department of assembly, and external part and the inflection department of assembly of adjusting head match together with inlay card.
Have in the fitness equipment oil cylinder of sectional damping controlling device above-mentioned, the inwall of described spill piece is offered an annular groove, annular groove is embedded establishes positioning retainer ring, and described positioning retainer ring exposes the notch of annular groove, and the positioning dish of described adjusting head leans mutually with above-mentioned positioning retainer ring.After spill piece and adjusting head are socketed, by the axial position of positioning retainer ring secured adjusted head, make both assemblings firmly.
Have in the fitness equipment oil cylinder of sectional damping controlling device above-mentioned, recessed annular groove on the periphery wall of described adjusting head, is embedded the first seal ring in annular groove, the first seal ring contacts with the inner circle wall of spill piece.Specifically offered two annular grooves side by side, be namely arranged side by side two the first seal rings, these two the first seal rings are all positioned at the outside of annular damper groove, prevent the hydraulic oil in inner cylinder body from revealing between spill piece and adjusting head thus.
Have in the fitness equipment oil cylinder of sectional damping controlling device above-mentioned, recessed annular groove on the inner circle wall of described adjusting head, the second seal ring is embedded in annular groove, second seal ring contacts with the outer wall of piston rod, also be socketed lip mouth oil seal between described adjusting head and piston rod, described lip mouth oil seal is positioned at the outer end of the second seal ring.Arranging the second seal ring prevents the hydraulic oil in inner cylinder body from revealing between adjusting head and piston rod.
Have in the fitness equipment oil cylinder of sectional damping controlling device above-mentioned, on described piston rod, also packing ring and circlip for hole are protected in socket, and protection packing ring, circlip for hole are arranged in order the outside in lip mouth oil seal.
Have in the fitness equipment oil cylinder of sectional damping controlling device above-mentioned, described spill piece has the multi-stage stairs end that can stretch into cylinder body, the first order sections of multi-stage stairs end stretches into inner cylinder body, and it is mutually closely connected with the inwall of inner cylinder body, the second level sections of multi-stage stairs end stretches into outer cylinder body, second level sections offers above-mentioned oil outlet, and the outer wall of described spill piece welds with outer cylinder body.By the multi-stage stairs end of spill piece and the corresponding cooperation of inner cylinder body, outer cylinder body, the inner chamber of oil cylinder and exocoel are separated.
Have in the fitness equipment oil cylinder of sectional damping controlling device above-mentioned, described piston rod stretches out the outer end welding draw ring of cylinder body.
Compared with prior art, the fitness equipment oil cylinder originally with sectional damping controlling device has that structure is simple, cost is low, during adjustment, feel is clear, efficiently solve user in use, scale difficult to, adjust difficulty not in place, and set up noise reduction cover at oil outlet place, this oil cylinder is also had noise is low, temperature rise is little feature.
Accompanying drawing explanation
Fig. 1 is assembly structure sectional view of the present utility model.
Fig. 2 is the structural representation of adjusting head in the utility model.
Fig. 3 is the gear slot cross-section figure of adjusting head in the utility model.
Fig. 4 is the annular damper slot cross-section figure of adjusting head in the utility model.
In figure, 1, piston rod; 2, rotary regulating sleeve; 3, circlip for hole; 4, lip mouth oil seal; 5, spill piece; 6, noise reduction cover; 7, adjusting head; 7a, annular damper groove; 7b, gear groove; 8, outer cylinder body; 9, inner cylinder body; 10, hydraulic oil; 11, the first seal ring; 12, spring; 13, steel ball; 14, positioning retainer ring; 15, the second seal ring; 16, packing ring is protected.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As Fig. 1,2, shown in 3 and 4, the fitness equipment oil cylinder originally with sectional damping controlling device comprises cylinder body, cylinder body has outer cylinder body 8 and inner cylinder body 9, interts piston rod 1 in inner cylinder body 9, and the port of cylinder body is sealed by spill piece 5 and adjusting head 7.
One-piece cylinder is double layer construction, i.e. the sheathed inner cylinder body 9 of outer cylinder body 8, and being inner chamber in inner cylinder body 9 thus, is exocoel between outer cylinder body 8 and inner cylinder body 9, is all full of hydraulic oil 10 in inner chamber and exocoel.Spill piece 5 and adjusting head 7 all have in through central shaft hole, spill piece 5 is socketed in the outside of adjusting head 7, piston rod 1 stretches in the inner chamber of inner cylinder body 9 through the central shaft hole of adjusting head 7, and piston is overlapped admittedly in the inner of piston rod 1, and piston rod 1 stretches out the outer end welding draw ring of cylinder body.
Spill piece 5 has the multi-stage stairs end that can stretch into cylinder body, the first order sections of multi-stage stairs end stretches into inner cylinder body 9, and with the inwall of inner cylinder body 9 mutually closely connected formation drive fit mode, the second level sections of multi-stage stairs end stretches into outer cylinder body 8, and the outer wall of spill piece 5 welds with outer cylinder body 8.By the multi-stage stairs end of spill piece 5 and the corresponding cooperation of inner cylinder body 9, outer cylinder body 8, the inner chamber of oil cylinder and exocoel are separated.
Adjusting head 7 is offered by being deep to shallow annular damper groove 7a, this annular damper groove 7a is communicated with inner cylinder body 9.The second level sections of spill piece 5 multi-stage stairs end sets out oilhole, and the inner of this oil outlet is communicated with the annular damper groove 7a on adjusting head 7.On the sections of the second level, also sheathed noise reduction overlaps 6, this noise reduction cover 6 has annular cavity, this annular cavity is buckled on the port of oil outlet outer end, gap is there is between noise reduction cover 6 and the outer wall of spill piece 5, this gap can be communicated with outer cylinder body 8, oil outlet, the annular cavity of noise reduction cover 6, gap and oil cylinder exocoel form path thus, but the path sizes of this path changes.
Arrange inner ring step in the internal diameter of spill piece 5, inner ring step is offered a blind hole, place spring 12 in blind hole, steel ball 13 is established on top, spring 12 outer end.Projection positioning dish on the external diameter of adjusting head 7, after suit, positioning dish reclines mutually with inner ring step, and the bottom surface of positioning dish is offered some gear groove 7b forming location for embedding steel ball 13.
The inwall of spill piece 5 is offered an annular groove, annular groove is embedded establishes positioning retainer ring 14, and positioning retainer ring 14 exposes the notch of annular groove, and after suit, the positioning dish of adjusting head 7 leans mutually with positioning retainer ring 14, thus by the axial position of positioning retainer ring 14 secured adjusted 7, make both assemblings firmly.
The periphery wall of adjusting head 7 is offered side by side two annular grooves, be all embedded the first seal ring 11, first seal ring 11 in each annular groove and contact with the inner circle wall of spill piece 5.These two the first seal rings 11 are all positioned at the outside of annular damper groove 7a, prevent the hydraulic oil 10 in inner cylinder body 9 from revealing between spill piece 5 and adjusting head 7 thus.
Recessed annular groove on the inner circle wall of adjusting head 7, is embedded the second seal ring 15, second seal ring 15 and contacts with the outer wall of piston rod 1, arrange the second seal ring 15 and prevent the hydraulic oil 10 in inner cylinder body 9 from revealing between adjusting head 7 and piston rod 1 in annular groove.Also be socketed lip mouth oil seal 4 between adjusting head 7 and piston rod 1, protect packing ring 16 and circlip for hole 3, and lip mouth oil seal 4, protection packing ring 16, circlip for hole 3 are arranged in order the outside in the second seal ring 15.
The peripheral closure of spill piece 5 and outer cylinder body 8 establishes rotary regulating sleeve 2, and the front end of rotary regulating sleeve 2 has inflection department of assembly, and external part and the inflection department of assembly of adjusting head 7 match together with inlay card.
Working principle of the present utility model is specific as follows:
When External Force Acting is on the draw ring of piston rod 1, when namely pulling piston rod 1 to move in inner cylinder body 9, the hydraulic oil 10 in inner chamber enters by being deep to shallow annular damper groove 7a, produces flowed friction; Hydraulic oil 10 after throttling is by the oil outlet on spill piece 5, high-speed punching is in the annular cavity of noise reduction cover 6, and reach noise reduction object, through buffering again by the gap between noise reduction cover 6 and spill piece 5 outer wall, the outer wall along inner cylinder body 9 slowly flows in the exocoel of outer cylinder body 8.
When rotating rotary regulating sleeve 2 by external force, the synchronous adjusting head 7 that drives rotates, and to change the relative position of oil outlet on annular damper groove 7a and spill piece 5, thus reaches the effect of damping adjusting force value.In rotation, when turning to certain file location, steel ball 13 just embeds in the gear groove 7b of this grade of location under the elastic thrust of spring 12, realizes the precisely true position of gear and keeps stable, thus damping force being divided into some sections, realizing the object that accurate stepping regulates.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ piston rod 1 herein; Rotary regulating sleeve 2; Circlip for hole 3; Lip mouth oil seal 4; Spill piece 5; Noise reduction cover 6; Adjusting head 7; Annular damper groove 7a; Gear groove 7b; Outer cylinder body 8; Inner cylinder body 9; Hydraulic oil 10; First seal ring 11; Spring 12; Steel ball 13; Positioning retainer ring 14; Second seal ring 15; Term such as protection packing ring 16 grade, but do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (9)
1. one kind has the fitness equipment oil cylinder of sectional damping controlling device, comprise cylinder body, described cylinder body has outer cylinder body and inner cylinder body, interspersed piston rod in described inner cylinder body, it is characterized in that, the port of described cylinder body is sealed by spill piece and adjusting head, described piston rod runs through adjusting head, the sheathed spill piece in periphery of described adjusting head, described adjusting head is offered by being deep to shallow annular damper groove, described annular damper groove is communicated with inner cylinder body, described spill piece sets out oilhole, the inner of described oil outlet is communicated with above-mentioned annular damper groove, the outer end of described oil outlet is communicated with outer oil cylinder, inner ring step is set in the internal diameter of described spill piece, inner ring step is offered a blind hole, spring is placed in described blind hole, steel ball is established on outer spring end top, projection positioning dish on the external diameter of described adjusting head, described positioning dish reclines mutually with inner ring step, and the bottom surface of positioning dish is offered some gear grooves forming location for embedding steel ball.
2. the fitness equipment oil cylinder with sectional damping controlling device according to claim 1, it is characterized in that, the sheathed noise reduction cover in periphery of described spill piece, described noise reduction cover has annular cavity, annular cavity is communicated with the oil outlet of spill piece, and annular cavity is also communicated with outer cylinder body.
3. the fitness equipment oil cylinder with sectional damping controlling device according to claim 1, it is characterized in that, the peripheral closure of described spill piece and outer cylinder body establishes rotary regulating sleeve, and the end of described rotary regulating sleeve is connected mutually with the external part of adjusting head.
4. the fitness equipment oil cylinder with sectional damping controlling device according to claim 1, it is characterized in that, the inwall of described spill piece is offered an annular groove, annular groove is embedded establishes positioning retainer ring, described positioning retainer ring exposes the notch of annular groove, and the positioning dish of described adjusting head leans mutually with above-mentioned positioning retainer ring.
5. the fitness equipment oil cylinder with sectional damping controlling device according to any one of claim 1 to 4, it is characterized in that, recessed annular groove on the periphery wall of described adjusting head, is embedded the first seal ring in annular groove, the first seal ring contacts with the inner circle wall of spill piece.
6. the fitness equipment oil cylinder with sectional damping controlling device according to any one of claim 1 to 4, it is characterized in that, recessed annular groove on the inner circle wall of described adjusting head, the second seal ring is embedded in annular groove, second seal ring contacts with the outer wall of piston rod, also be socketed lip mouth oil seal between described adjusting head and piston rod, described lip mouth oil seal is positioned at the outer end of the second seal ring.
7. the fitness equipment oil cylinder with sectional damping controlling device according to claim 6, it is characterized in that, on described piston rod, also packing ring and circlip for hole are protected in socket, and protection packing ring, circlip for hole are arranged in order the outside in lip mouth oil seal.
8. the fitness equipment oil cylinder with sectional damping controlling device according to any one of claim 1 to 4, it is characterized in that, described spill piece has the multi-stage stairs end that can stretch into cylinder body, the first order sections of multi-stage stairs end stretches into inner cylinder body, and it is mutually closely connected with the inwall of inner cylinder body, the second level sections of multi-stage stairs end stretches into outer cylinder body, and second level sections offers above-mentioned oil outlet, and the outer wall of described spill piece welds with outer cylinder body.
9. the fitness equipment oil cylinder with sectional damping controlling device according to any one of claim 1 to 4, is characterized in that, described piston rod stretches out the outer end welding draw ring of cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420532773.XU CN204061412U (en) | 2014-09-16 | 2014-09-16 | A kind of fitness equipment oil cylinder with sectional damping controlling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420532773.XU CN204061412U (en) | 2014-09-16 | 2014-09-16 | A kind of fitness equipment oil cylinder with sectional damping controlling device |
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| CN204061412U true CN204061412U (en) | 2014-12-31 |
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| CN201420532773.XU Active CN204061412U (en) | 2014-09-16 | 2014-09-16 | A kind of fitness equipment oil cylinder with sectional damping controlling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194452A (en) * | 2018-02-28 | 2018-06-22 | 浙江正星健身器有限公司 | A kind of two-way cylinder of fitness equipment |
-
2014
- 2014-09-16 CN CN201420532773.XU patent/CN204061412U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194452A (en) * | 2018-02-28 | 2018-06-22 | 浙江正星健身器有限公司 | A kind of two-way cylinder of fitness equipment |
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