CN201973156U - Damper with metal shell - Google Patents
Damper with metal shell Download PDFInfo
- Publication number
- CN201973156U CN201973156U CN2011200937711U CN201120093771U CN201973156U CN 201973156 U CN201973156 U CN 201973156U CN 2011200937711 U CN2011200937711 U CN 2011200937711U CN 201120093771 U CN201120093771 U CN 201120093771U CN 201973156 U CN201973156 U CN 201973156U
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- CN
- China
- Prior art keywords
- damper
- piston
- outer tube
- metal shell
- described damper
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a damper with metal shell, including a damper outer tube of a damper piston. The damper piston divides the inner space of a damper which is full of liquid into two cavities. The damper piston has a hole. The damper piston makes a channel gap with the inwall of the outer tube of the damper. A top cover and a bottom cover are set at the two ends of the outer tube of the damper separately. A damper support is set in the outer tube of damper and guides the damper rod. The damper rod is connected with the damper piston and also through the damper support and stretches out of the top cover of the damper. Radical ribs and outer radical grooves which are used for setting seal rings are set on the bottom cover of the damper. An extrusion process is applied to the outer tube of damper. Thus, the invention can solve the problem of cylinder explosion when the damper is hit violently. In addition, the cavities of the slow piston sliding and the fast piston sliding of the outer tube of damper can form a ladder-like chamber, thus, the buffer stroke can be slow and fast.
Description
Technical field
The utility model relates to damper, relates in particular to a kind of metal shell damper.
Background technique
The furniture wing when closing or drawer easily collide mutually when closing with main body, make a noise, also easily damage mutually.Therefore, the device that impacts, i.e. damper are alleviated in installing on furniture.
Existing its outer tube of plastics damper is generally all plastic injection-moulded forms, because Shooting Technique is limit, the outer length of tube of damper is not done long, and it is eccentric easily, thereby causes the easy cylinder that explodes when being subjected to impacting energetically.
Existing its outer tube of metal shell damper is to be formed by the steel plate punching stretch, forms the outer tube of one one end sealing, though solved the problem of fried cylinder, because the steel plate drawing craft is limit, its outer length of tube cannot not done longly yet.
The model utility content
The purpose of this utility model provides firm, the elongated metal shell damper of a kind of structure, to overcome deficiency of the prior art.
A kind of metal shell damper of the utility model, be provided with the damper outer tube of damper piston in comprising, described damper piston is divided into two chambers with the damper inner space of full of liquid, the path clearance that described damper piston has the hole and/or defines with described damper outer tube wall; Be loaded on the damper top end cover and the damp tube bottom head covers at described damper outer tube two ends respectively; The damper support that is arranged in the described damper outer tube and the damper pull bar is led; The damper pull bar that is connected with described damper piston, described damper pull bar pass described damper support and stretch out described damper top end cover; Described damp tube bottom head covers has the part of at least one radial rib and the truncated cone shape that is used for matching with the damper outer tube when applying extrusion process.
More preferably, described damp tube bottom head covers also has the outer radial grooves that is used to be provided with seal ring.
Described damp tube bottom head covers is connected closely with the damper outer tube, good sealing effect, and it has the outpost of the tax office, three roads, thereby prevents detonation.Owing to can select the size of parts of the present utility model, so can do smallerly described metal shell damper and compact structure.
More preferably, axially middle circular ridge and the axial cross section of described damper piston with axial region symmetry, described damper piston is provided with at least one axial drilling, and described axial drilling is close to described axial cross section.Described piston is integrally formed, does not need valve block, and it is simple in structure.
More preferably, described damper outer tube inside is provided with relief chamber and piston sliding cavity, and described piston sliding cavity is divided into quick piston sliding cavity and piston sliding cavity at a slow speed, and the internal diameter of described quick piston sliding cavity is greater than the internal diameter of the described sliding cavity of piston at a slow speed.Make piston when being subjected to impact force, the slow earlier back of its stroke is fast, has good movement travel effect, and can become first quick and back slow according to actual needs.
More preferably, one damper piston cover is sheathed on the described damper piston, described damper piston cover is horn-like, has diameter and becomes big tubular body and the interior boss of described tubular body gradually, and the internal diameter of described boss is less than the external diameter of the circular ridge of described damper piston.Described damper piston cover has the effect of regulating described damper movement travel speed.
More preferably, the axial region of described damper top end cover is provided with outer radial grooves, inner radial groove and radial rib, and the end of described damper top end cover is drilled with the hole.Being connected closely of described damper top end cover and described damper outer tube, good sealing effect.
More preferably, the left end of described damper support has the enlarged width end portions of a flange-shape, at least one is set on the described enlarged width end portions presses close to or connect inboard wall of cylinder block and be communicated with described relief chamber and the oily passage of mistake of described piston sliding cavity.Described damper support leads to described damper pull bar, and allows oil flow to described relief chamber from described piston sliding cavity.Described damper support one end is clamped between described damp tube top end cover and the described damper oil sealing gum cover.At least one window of processing makes and can lubricate between described damper pull bar and the described damper support on the axial region of described damper support, and makes the oil in the chamber form backflow.
More preferably, a lip damper oil sealing gum cover is loaded on the inside of described damp tube top end cover and near its inner end and be sheathed on the described damper pull bar.Be used to seal also the oil on the described damper pull bar is wiped clean, prevent the leakage of oil.
More preferably, at least one damper foam encasement is sheathed on the axial region of described damper support, is used to absorb the foam that produces when described damper piston is moved.Thereby make stable working, the peace and quiet of described damper.Described damper foam encasement is made by spongy rubber or sponge rubber or foam elastomer plastics.
More preferably, a damper drawhead interference fit joint is in an end of described damper pull bar.Described damper drawhead is a T type shape.Described damper drawhead is made by flexibility or elastic material.
More preferably, have on the outer surface of described damper outer tube two ends because of applying the groove that radially an extrusion process forms.Strengthen being connected of described damper outer tube and described damper top end cap and described damper bottom head covers.
More preferably, in the outer radial grooves of described damp tube bottom head covers and described damper top end cover, be equiped with seal ring respectively.
The utility model beneficial effect is: make metal shell damper outer tube by utilizing metal tube, thereby can be so that the not detonation of metal shell damper, under the situation of not die sinking, do all lengths size, accomplish injection moulding and the inaccessible length of punching stretch, and the end at metal shell damper outer tube is provided with the damp tube bottom head covers, and the damp tube bottom head cover is provided with the outpost of the tax office, three roads and is used for anti-leakage of oil, gas leakage.In addition, the piston sliding cavity of damper outer tube has different quick piston sliding cavity of diameter and piston sliding cavity at a slow speed, optimizes movement travel.It is simple and reasonable, easy to use, the life-span is long, at the bottom of the cost cost.
Description of drawings
Fig. 1 is the decomposition texture schematic representation of a kind of metal shell damper of the utility model;
Fig. 2 is that Fig. 1 assembles the back structural representation;
Fig. 3 is the axial sectional structure schematic representation of Fig. 2;
Fig. 4 is the structural representation of damp tube bottom head covers of the present utility model;
Fig. 5 is the structural representation of damper top end cover of the present utility model;
Fig. 6 is the structural representation of damper piston of the present utility model;
Fig. 7 is the structural representation of damper piston cover of the present utility model;
Fig. 8 is the structural representation of damper support of the present utility model.
Embodiment
For making the purpose of this utility model, technological scheme and advantage clearer, the utility model is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 1, this metal shell damper, comprise that inside is provided with the damper outer tube 08 that is made of metal of damper piston 09, damper piston and damper pull bar 07 1 end interference fit joint, damper pull bar 07 the other end passes damper support 06, damper oil sealing gum cover 04, and stretch out outside the damper top end cover 02, with damper drawhead 01 interference fit joint.Damper outer tube 08 is tubular, front end is provided with damper oil sealing gum cover 04 and is connected with damper outer tube 08 forward end seal with damper pull bar 07 respectively with damper top end cover 02, the rear end is provided with damp tube bottom head covers 11, is connected with described damper outer tube 08 back-end sealing.
Referring to Fig. 3, described damper outer tube 08 inside is provided with relief chamber 08a and piston sliding cavity, is provided with elasticity decompression part damper foam encasement 05 in the described relief chamber, and described damper foam encasement is sheathed on the described damper support 06; Be provided with in the described piston sliding cavity the described damper piston 09 that is connected with described damper pull bar 07 and with the damper piston cover 10 that is sheathed on the described damper piston; Described piston sliding cavity is divided into quick piston sliding cavity 08c and piston sliding cavity 08b at a slow speed, and the described sliding cavity of piston at a slow speed is arranged between described quick piston sliding cavity and the described relief chamber.According to actual conditions, described sliding cavity 08b of piston at a slow speed and described quick piston sliding cavity 08c position can exchange.
Described damper pull bar 07 is made by metallic material.
Referring to Fig. 6, described damper piston 09 has annular end 09a, process groove 09b and a boring 09c that four road axisymmetric distribute on the described annular end 09a, described boring 09c connects described annular end 09a, circular ridge 09e links to each other with described annular end 09a by ring-shaped step 09d, in described circular ridge 09e left side one piston tip 09f is arranged, described piston tip 09f is cylindrical, be processed into visible cross section 09g in the accompanying drawing, described two sections 09g axisymmetric along described piston tip 09f cylinder up to described annular end 09a left side respectively in described piston tip 09f both sides.Described boring 09c is close to described cross section 09g.As can be seen from Figure 3, described damper piston 09 and described damper pull bar 07 1 end interference fit joint.
Referring to Fig. 7, described damper piston cover 10 is horn-like, have diameter and become big tubular body 10b and the boss 10a of Qi Nei gradually, described damper piston cover 10 is consistent with the internal diameter size of the described sliding cavity of piston at a slow speed 08b than the external diameter of large end face, and the internal diameter of described boss 10a is less than the external diameter of described circular ridge 09e.
Referring to Fig. 8, described damper support 06 comprises that a center is the axial region 06b of tubulose, the enlarged width end portions 06c that one flange-shape is arranged at its left end, at least one is set on the described enlarged width end portions 06c presses close to or connect inboard wall of cylinder block and be communicated with described relief chamber and the oily passage 06d of the mistake of described piston sliding cavity, be provided with the part 06a that widens axial region 06b at its right-hand member.As can be seen from Figure 3, described part 06a is supported in the described damper top end cover 02, and the external diameter of described enlarged width end portions 06c equals the internal diameter of described relief chamber, and described damper support left side contacts with the left side of described relief chamber.Described damper foam encasement 05 is sheathed on described damper axial region 06b.Described damper foam encasement 05 is made by spongy rubber or sponge rubber or foam elastomer plastics.
Described axial region 06b goes up near the position of widening axial region 06a and processes a window.
Referring to Fig. 4, described damp tube bottom head covers 11 comprises the part 11d and the end cap end 11e of the first radial rib 11a, the second radial rib 11c, outer radial grooves 11b, truncated cone shape, described outer radial grooves 11b places between described first radial rib 11a and the described second radial rib 11c, and the part 11d of described truncated cone shape places between described second radial rib 11c and the described end cap end 11e.One seal ring 03 is arranged in the described radial groove 11b, realize being tightly connected of described damp tube bottom head covers 11 and described damper outer tube 08 by seal ring 03, described damp tube bottom head covers 11 is by the described first radial rib 11a and described second radial rib 11c and described damper outer tube 08 interference fit joint.
Referring to Fig. 5, the axial region of described damper top end cover 02 comprise be located near the outer radial grooves 02b of left end, be located near the inner radial groove 02c of right-hand member and be located at outer radial grooves 02b and inner radial groove 02c between radial rib 02a, the end of described damper top end cover 02 is drilled with hole 02d.As can be seen from Figure 3, described seal ring 03 is arranged in the described outer radial grooves 02b, realize being tightly connected of described damp tube top end cover 02 and described damper outer tube 08 by described seal ring 03, described damp tube top end cover 02 is by described radial rib 02a and described damper outer tube 08 interference fit joint, described damper oil sealing gum cover 04 is loaded on the inside of described damp tube top end cover 02 and near its inner end and be sheathed on the described damper pull bar 07, an end 06a of described damper support 06 is clamped between described damp tube top end cover 02 and the described damper oil sealing gum cover 04.
Described metal shell damper is installed, at first, described damp tube bottom head covers 11 is installed in the left end of described damper outer tube 08, and the left part of described damper outer tube 08 applied extrusion process one, make the left part of described damper outer tube 08 match with the part 11d of the truncated cone shape of described damp tube bottom head covers 11.With the damping liquid of aequum, for example oil is packed into wherein then.Subsequently described damper pull bar 07, described damper top end cover 02, described seal ring 03, described damper oil sealing gum cover 04, described damper foam encasement 05, described damper support 06, described damper piston 09, described damper piston cover 10 etc. are installed in order and insert together, described damper top end cover 02 applies extrusion process with the right-hand member of described damper outer tube 08, strengthens connecting.Load onto described damper drawhead 01 at last.
Described damper drawhead 01 is the T type shape that two cylinders are formed, and it is made by flexibility or elastic material.
After according to above-mentioned narration damper being assembled, the damper stereogram as shown in Figure 2, implement the utility model, its working procedure is: when described damper drawhead 01 is applied in pressure, described damper piston 09 and described damper piston cover 10 are together to left movement, described damper piston cover 10 is under the effect of pressure, the annular end 09a left side of described damper piston 09 is close in its right side, when described damper piston 09 during at the described sliding cavity of piston at a slow speed 08b, the oily passage of mistake that the cross section 09g of oil by described damper piston cover 10 and described damper piston 09 forms flows to the right side of described damper piston 09 from the left side of described damper piston cover 10 through described boring 09c; When described damper piston 09 during at described quick piston sliding cavity 08c, the oily passage of mistake that oil forms by described boring 09c and described damper piston cover 10 and described quick piston sliding cavity flows to the right side of described damper piston 09 from the left side of described damper piston cover 10; Run into described damper top end cover 02 up to described damper drawhead 01, buffering finishes.When described damper drawhead 01 is applied in pulling force, described damper piston 09 and described damper piston cover 10 move right together, described damper piston cover 10 leaves the annular end 09a left side of described damper piston 09, the circular ridge 09e right side of being close to described damper piston 09, oil is run into described damper support 06 left side by the oily passage 09b of mistake of described boring 09c and described damper piston 09 and the formation of described piston sliding cavity flows to described damper piston cover 10 from the right side of described damper piston 09 left side up to the annular end 09a right side of described damper piston 09.
Implement the utility model, make metal shell damper outer tube by utilizing metal tube, thereby can be so that the not detonation of metal shell damper, under the situation of not die sinking, do all lengths size, accomplish injection moulding and the inaccessible length of punching stretch, and the end at metal shell damper outer tube is provided with the damp tube bottom head covers, and the damp tube bottom head cover is provided with the outpost of the tax office, three roads and is used for anti-leakage of oil, gas leakage.Through experiment test, the utility model is under the effect of 40 kgfs, and the utility model metal shell damper can detonation.In addition, the piston sliding cavity of described damper outer tube has different quick piston sliding cavity of diameter and piston sliding cavity at a slow speed, optimizes movement travel.The utility model is simple and reasonable, easy to use, the life-span is long, at the bottom of the cost cost.
The above is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also are considered as protection domain of the present utility model.
Claims (10)
1. metal shell damper, it is characterized in that: the damper outer tube that is provided with damper piston in comprising, described damper piston is divided into two chambers with the damper inner space of full of liquid, the path clearance that described damper piston has the hole and/or defines with described damper outer tube wall;
Be loaded on the damper top end cover and the damp tube bottom head covers at described damper outer tube two ends respectively;
The damper support that is arranged in the described damper outer tube and the damper pull bar is led;
The damper pull bar that is connected with described damper piston, described damper pull bar pass described damper support and stretch out described damper top end cover;
Described damp tube bottom head covers has the part of at least one radial rib and the truncated cone shape that is used for matching with the damper outer tube when applying extrusion process.
2. metal shell damper according to claim 1 is characterized in that: described damp tube bottom head covers also has the outer radial grooves that is used to be provided with seal ring, is equiped with seal ring in the described outer radial grooves.
3. metal shell damper according to claim 1 and 2 is characterized in that:
The circular ridge and the axial cross section that have axial symmetry in the middle of the described damper piston axial region, described damper piston is provided with at least one axial drilling, and described axial drilling is close to described axial cross section.
4. metal shell damper according to claim 1 and 2, it is characterized in that: described damper outer tube inside is provided with relief chamber and piston sliding cavity, described piston sliding cavity is divided into quick piston sliding cavity and piston sliding cavity at a slow speed, and the internal diameter of described quick piston sliding cavity is greater than the internal diameter of the described sliding cavity of piston at a slow speed.
5. metal shell damper according to claim 3, it is characterized in that: a damper piston cover is sheathed on the described damper piston, described damper piston cover is horn-like, have diameter and become big tubular body and the interior boss of described tubular body gradually, the internal diameter of described boss is less than the external diameter of the circular ridge of described damper piston.
6. metal shell damper according to claim 1 and 2, it is characterized in that: the axial region of described damper top end cover is provided with outer radial grooves, inner radial groove and radial rib, the end of described damper top end cover is drilled with the hole, is equiped with seal ring in the described outer radial grooves.
7. metal shell damper according to claim 1 and 2 is characterized in that: a lip damper oil sealing gum cover is loaded on the inside of described damp tube top end cover and near its inner end and be sheathed on the described damper pull bar.
8. metal shell damper according to claim 1 and 2 is characterized in that: at least one damper foam encasement is sheathed on the axial region of described damper support.
9. metal shell damper according to claim 1 and 2 is characterized in that: a damper drawhead interference fit joint is in an end of described damper pull bar.
10. metal shell damper according to claim 1 and 2 is characterized in that: have on the outer surface of described damper outer tube two ends because of applying the groove that radially an extrusion process forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200937711U CN201973156U (en) | 2011-04-01 | 2011-04-01 | Damper with metal shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200937711U CN201973156U (en) | 2011-04-01 | 2011-04-01 | Damper with metal shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201973156U true CN201973156U (en) | 2011-09-14 |
Family
ID=44578259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200937711U Expired - Lifetime CN201973156U (en) | 2011-04-01 | 2011-04-01 | Damper with metal shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201973156U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606665A (en) * | 2012-03-27 | 2012-07-25 | 北京工业大学 | Viscous damper to passively adjust high energy consuming clearances |
| CN102720792A (en) * | 2012-05-18 | 2012-10-10 | 中国科学院合肥物质科学研究院 | Combined type draw bar bearing impact tension |
| CN102733701A (en) * | 2011-04-01 | 2012-10-17 | 许姜德 | Damper with metal housing |
| CN104929263A (en) * | 2015-06-23 | 2015-09-23 | 东南大学 | Assembled lead-foamed aluminum composite damper for building vibration reduction |
-
2011
- 2011-04-01 CN CN2011200937711U patent/CN201973156U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733701A (en) * | 2011-04-01 | 2012-10-17 | 许姜德 | Damper with metal housing |
| CN102733701B (en) * | 2011-04-01 | 2016-02-17 | 许姜德 | A kind of damper with metal shell |
| CN102606665A (en) * | 2012-03-27 | 2012-07-25 | 北京工业大学 | Viscous damper to passively adjust high energy consuming clearances |
| CN102720792A (en) * | 2012-05-18 | 2012-10-10 | 中国科学院合肥物质科学研究院 | Combined type draw bar bearing impact tension |
| CN102720792B (en) * | 2012-05-18 | 2014-10-22 | 中国科学院合肥物质科学研究院 | Combined type draw bar bearing impact tension |
| CN104929263A (en) * | 2015-06-23 | 2015-09-23 | 东南大学 | Assembled lead-foamed aluminum composite damper for building vibration reduction |
| CN104929263B (en) * | 2015-06-23 | 2017-03-15 | 东南大学 | A kind of building vibration damping assembled lead foamed aluminium composite material antivibrator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110914 |
|
| CX01 | Expiry of patent term |