CN203637801U - Tractor trailer brake chamber - Google Patents
Tractor trailer brake chamber Download PDFInfo
- Publication number
- CN203637801U CN203637801U CN201420004131.2U CN201420004131U CN203637801U CN 203637801 U CN203637801 U CN 203637801U CN 201420004131 U CN201420004131 U CN 201420004131U CN 203637801 U CN203637801 U CN 203637801U
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- push rod
- assembly
- power transmission
- upper cover
- pallet push
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- Withdrawn - After Issue
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Abstract
A tractor trailer brake chamber comprises an upper cover assembly, a rapid venting and muting dustproof device, a strong rubber diaphragm assembly, a lower cover and tray push rod force transmission connection fork assembly and a tray push rod and spring assembly. Concave grooves of the upper cover assembly press against convex flanges of the lower cover and tray push rod force transmission connection fork assembly and are in rotating concave and convex connection with the same, and an upper cover is provided with a left-side vertical through hole, a central vertical through hole and a horizontal through hole communicated with the central vertical through hole. The rapid venting and muting dustproof device is disposed on the upper cover of the upper cover assembly, a muting dustproof unit is connected to the outer side of the upper cover assembly. The strong rubber diaphragm assembly is disposed between the upper cover assembly and the lower cover and tray push rod force transmission connection fork assembly. The tray push rod and spring assembly is disposed on an inner annular groove of the strong rubber diaphragm assembly in a tangent manner, the upper-end plane of the tray push rod and spring assembly is in contact with the bottom surface of the inner annular groove of the strong rubber diaphragm assembly, and the lower end of a tray push rod is connected with a force transmission connection fork locking nut and a force transmission connection fork.
Description
Technical field
The utility model belongs to trac. field, relates to a kind of compressed air brake cylinder, relates in particular to a kind of tractor trailer compressed air brake cylinder.
Background technology
At present, the tractor trailer compressed air brake cylinder of producing both at home and abroad, is mostly piston spring formula or diaphragm spring type.Piston spring formula compressed air brake cylinder manufacturing process more complicated, case material adopts aluminum alloy more expensive; Diaphragm spring type brake chamber is easily manufactured compared with piston spring formula compressed air brake cylinder, and case material adopts steel plate or cast iron, but when assembling parts is become to compressed air brake cylinder assembly and compressed air brake cylinder is arranged on tractor trailer, assembly technology is more complicated still.Between diaphragm and upper cover and lower house, form by multiple assembling parts in addition, assembly technology is more complicated also.Therefore, develop a kind of rational in infrastructure, low price, relatively simple, the safe and reliable tractor trailer compressed air brake cylinder of manufacturing process, will be subject to users' favor.Verification experimental verification, we possess compact conformation by the compressed air brake cylinder of development, and its sealing property, deceleration and stopping performance, rigidity, intensity is the advantage such as good all, is equally applicable in tractor-trailer braking system.
Utility model content
The purpose of this utility model be to provide a kind of rational in infrastructure, cost is lower, strength and stiffness and good seal performance, can improve brake system deceleration and stopping performance, easy for installation and service-strong tractor trailer compressed air brake cylinder.
The technical solution of the utility model is: tractor trailer compressed air brake cylinder, comprising: upper cap assembly, Quick air-discharge noise reducing dust device, powerful rubber diaphragm assembly, lower house and pallet push rod power transmission shaft clevis assembly, pallet push rod and spring assembly, at least two uniform concave grooves of upper cap assembly lower inside setting, lower house and at least two uniform convex flanges of pallet push rod power transmission shaft clevis assembly upper outside setting, upper cap assembly compresses concavo-convex connection of rear rotation with middle lower house and the pallet push rod power transmission shaft clevis assembly that accompanies powerful rubber diaphragm assembly, makes Quick air-discharge noise reducing dust device be in cap assembly upper right side, the centerline of the upper cover upper surface in upper cap assembly is provided with center longitudinal hole, and the left side parallel with line of centers is provided with left side longitudinal hole, and in upper cover upper right side, horizontal direction is provided with the cross through hole communicating with center longitudinal hole, the Quick air-discharge valve of Quick air-discharge noise reducing dust device is arranged in the upper cover central upper portion longitudinal hole of cap assembly, and noise reducing dust device is connected to outside, upper cap assembly upper right side by noise reducing dust latching device, powerful rubber diaphragm assembly is arranged between cap assembly and lower house and pallet push rod power transmission shaft clevis assembly, pallet push rod and spring assembly are arranged on by the end disc face of cylinder on pallet push rod in the interior annular groove of intermediate annular boss below powerful rubber diaphragm assembly outside and are tangent, on it, transverse plane contacts with the interior annular groove bottom surface of intermediate annular boss below powerful rubber diaphragm assembly outside, the push rod of pallet push rod in middle part and lower end be provided with outside thread, stretch out from lower house bottom centre pilot hole pallet push rod bottom, the lower end of pallet push rod is connected with power transmission shaft clevis jam nut and the power transmission shaft clevis of pallet push rod power transmission shaft clevis assembly with lower house by outside thread.
Upper cap assembly comprises: upper cover and air inlet plug screw O-ring seals, air inlet plug screw, upper cover; Air inlet plug screw lower end is by negative thread and the external thread bolt connection of upper cover that upper cover and air inlet plug screw O-ring seals are installed, air inlet plug screw lower end bosom and upper cover top are provided with gap, and air inlet plug screw upper end is connected with the high pressure gas pipeline assembly of air brake valve output by outside thread.
Quick air-discharge noise reducing dust device comprises: Quick air-discharge valve, noise reducing dust device, noise reducing dust latching device; Quick air-discharge valve is arranged in upper cover central upper portion longitudinal hole, noise reducing dust device is arranged in noise reducing dust latching device internal annular groove, noise reducing dust latching device is by negative thread and upper cover upper right side cross through hole external part external thread bolt connection, noise reducing dust device left side and upper cover upper right side cross through hole external part end contact.
Powerful rubber diaphragm assembly comprises: the powerful rubber of peviform, the powerful canvas core of peviform; Inside upper limb circle, the powerful canvas core of the reeded peviform of tool is arranged in the powerful rubber of circular peviform, the powerful rubber of peviform top is circular open plane, lower inner surface presents peviform closure plane, and the inner dividing range place's upper inside surface of the powerful rubber of peviform and lower inner surface present Y shape annular distribution; The powerful rubber exterior dividing range place's outer surface of upper of peviform also presents Y shape annular distribution with lower external face, and outside dividing range presents circular, and centre has edge annular boss below the powerful rubber exterior of peviform; The powerful rubber of peviform is arranged in the crack of upper cover and lower house junction, below the powerful rubber exterior of peviform, in the interior annular groove of intermediate annular boss, insert the face of cylinder, pallet push rod upper end tangent, interior annular groove bottom surface and the pallet push rod upper end plane contact of intermediate annular boss below powerful rubber exterior.
Lower house and pallet push rod power transmission shaft clevis assembly comprise: lower house, power transmission shaft clevis jam nut, power transmission shaft clevis, opening locking pin, power transmission pin; Push rod in pallet push rod stretches out from lower house bottom centre pilot hole, and power transmission shaft clevis jam nut, power transmission shaft clevis upper end negative thread are connected with the push rod bottom outside thread in pallet push rod successively; Power transmission pin stretches out by two of power transmission shaft clevis lower ends through hole, and left end boss right side contacts with power transmission shaft clevis lower end left surface, and opening locking pin passes and breaks locking into two with one's hands to both sides from the radial hole of power transmission pin right-hand member sponson.
Pallet push rod and spring assembly comprise: round metal steel plate core, pretension pull back spring, pallet push rod; Round metal steel plate core is arranged in pallet push rod, the tray top of pallet push rod is disk, the lower edge of the pallet of pallet push rod is annular boss, the push rod lower end of pallet push rod is provided with outside thread, also tangent in the interior annular groove of intermediate annular boss below the powerful rubber exterior of the face of cylinder, pallet upper end insertion peviform of pallet push rod, upper transverse plane contacts with the interior annular groove bottom surface of intermediate annular boss below the powerful rubber exterior of peviform; Push rod in pallet push rod stretches out from lower house bottom centre pilot hole, is connected successively by bottom outside thread with power transmission shaft clevis jam nut, power transmission shaft clevis upper end negative thread; Insert in the groove of annular boss of pallet push rod lower end pretension pull back spring upper end, and insert in the annular groove of lower house bottom interior surface its lower end, and pretension pull back spring cylindrical is all tangent with pallet push rod and lower house annular groove inner periphery.
The utility model adopts the good effect producing after technique scheme to be: tractor trailer compressed air brake cylinder is rational in infrastructure, cost is lower, can realize fast assembling-disassembling.Quick air-discharge noise reducing dust apparatus structure is simple, use is reliable, has reduced noise and environmental pollution.Inside upper limb circle, the powerful canvas core of the reeded peviform of tool is arranged in the powerful rubber of circular peviform, has increased the intensity of powerful rubber diaphragm assembly, has improved service life.The inner dividing range place's upper inside surface of powerful rubber diaphragm assembly and lower inner surface present Y shape annular distribution, outside dividing range place's outer surface of upper and lower external face also present Y shape annular distribution, outside dividing range has certain thickness and presents circularly, has strengthened sealing property.Round metal steel plate core is arranged in pallet push rod, pallet push rod is made into one by engineering plastics, easy for installation and ensured that well the pallet push rod of tractor trailer compressed air brake cylinder is coaxial with upper shell, powerful rubber diaphragm assembly, lower house and spring in use, improve thrust performance and reliability of service and the life-span of tractor trailer compressed air brake cylinder, ensured the traffic safety of Tractor-trailer unit.
Brief description of the drawings
Main TV structure cross-sectional schematic when Fig. 1 is the braking mode of the utility model tractor trailer compressed air brake cylinder.
Main TV structure cross-sectional schematic when Fig. 2 is the brake off state of the utility model tractor trailer compressed air brake cylinder.
Fig. 3 is the plan structure schematic diagram of the utility model tractor trailer compressed air brake cylinder.
Fig. 4 is the structural representation of looking up of the utility model tractor trailer compressed air brake cylinder.
Left TV structure schematic diagram when Fig. 5 is the braking mode of the utility model tractor trailer compressed air brake cylinder.
Right TV structure schematic diagram when Fig. 6 is the braking mode of the utility model tractor trailer compressed air brake cylinder.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further.As shown in Fig. 1 ~ 6, tractor trailer compressed air brake cylinder, mainly by upper cap assembly 1, Quick air-discharge valve 2, upper cover and air inlet plug screw O-ring seals 3, air inlet plug screw 4, Quick air-discharge noise reducing dust device 5, noise reducing dust device 6, noise reducing dust latching device 7, upper cover 8, powerful rubber diaphragm assembly 9, the powerful rubber 10 of peviform, the powerful canvas core 11 of peviform, lower house and pallet push rod power transmission shaft clevis assembly 12, round metal steel plate core 13, pretension pull back spring 14, lower house 15, pallet push rod and spring assembly 16, pallet push rod 17, power transmission shaft clevis jam nut 18, power transmission shaft clevis 19, opening locking pin 20, power transmission pin 21 forms.
At least two uniform concave grooves of upper cap assembly 1 lower inside setting, the convex flange that lower house and the 12 upper outside settings of pallet push rod power transmission shaft clevis assembly are corresponding with upper cover 8 inner side concave grooves in upper cap assembly 1, upper cap assembly 1 compresses concavo-convex connection of rear rotation with middle lower house and the pallet push rod power transmission shaft clevis assembly 12 that accompanies powerful rubber diaphragm assembly 9, makes Quick air-discharge noise reducing dust device 5 be in cap assembly 1 upper right side; Powerful rubber diaphragm assembly 9 upper surface annulus positions contact and sealing with upper cover 8 annulus positions, the internal annular groove internal upper part lower surface compressions that lower inside has concave grooves, and powerful rubber diaphragm assembly 9 lower surface annulus positions contact and seal with lower house 15 annulus positions, upper surface, the top compressions that upper outside has convex flange.
At compressed air brake cylinder during in braking mode, high pressure gas enter compressed air brake cylinder top closed containing cavity from the left side longitudinal hole B parallel with upper cover 8 central upper portion longitudinal hole A, the lower surface of Quick air-discharge valve 2 contacts and seals with upper cover 8 central upper portion longitudinal hole A upper surfaces, interior side contacts and the sealing of the cylinder right flank of Quick air-discharge valve 2 and upper cover 8 upper right side cross through hole C, the downward promotion pallet of powerful rubber diaphragm assembly 9 push rod 17 compresses pretension pull back spring 14 and drives power transmission shaft clevis jam nut 18, power transmission shaft clevis 19, opening locking pin 20, power transmission pin 21 moves downward, pallet push rod 17 thrust outputs, at compressed air brake cylinder during in brake off state, the upper surface of Quick air-discharge valve 2 contacts sealing with air inlet plug screw 4 admission port lower surfaces, and the lower surface of Quick air-discharge valve 2 is still in upper cover 8 central upper portion longitudinal hole A, the cylindrical side of Quick air-discharge valve 2 contacts and seals with upper cover 8 central upper portion longitudinal hole A, the top of the lower surface of Quick air-discharge valve 2 in upper cover 8 upper right side cross through hole C, high pressure gas enter atmosphere from noise reducing dust device 6.Pretension pull back spring 14 upwards promotes pallet push rod 17 and powerful rubber diaphragm assembly 9, and pallet push rod 17 drives power transmission shaft clevis jam nut 18, power transmission shaft clevis 19, opening locking pin 20, power transmission pin 21 upward movements, and pallet push rod 17 produces pulling force.
Noise reducing dust device 6 is arranged in noise reducing dust latching device 7 internal annular grooves, noise reducing dust latching device 7 is connected with upper cover 8 upper right side cross through hole C external part outside threads by negative thread, noise reducing dust device 6 left sides and upper cover 8 upper right side cross through hole C external part end contacts; Quick air-discharge valve 2 is arranged in upper cover 8 central upper portion longitudinal hole A.At compressed air brake cylinder, during in braking mode, the lower surface of Quick air-discharge valve 2 contacts and seals with upper cover 8 central upper portion longitudinal hole A upper surfaces, side contacts and sealing in the cylinder right flank of Quick air-discharge valve 2 and upper cover 8 upper right side cross through hole C; At compressed air brake cylinder during in brake off state, the upper surface of Quick air-discharge valve 2 contacts sealing with air inlet plug screw 4 admission port lower surfaces, and the lower surface of Quick air-discharge valve 2 is still in upper cover 8 central upper portion longitudinal hole A, the cylindrical side of Quick air-discharge valve 2 contacts and seals with upper cover 8 central upper portion longitudinal hole A, the top of the lower surface of Quick air-discharge valve 2 in upper cover 8 upper right side cross through hole C, high pressure gas enter atmosphere from noise reducing dust device 6.
Inside upper limb circle, the powerful canvas core 11 of the reeded peviform of tool is arranged on the thicker centre of the powerful rubber 10 of circular peviform has in the round rubber blank of a small circular boss, on the powerful canvas core 11 of peviform, place thinner round rubber blank again, after rubber hot forming, the powerful canvas core 11 of peviform fits tightly with the powerful rubber 10 of peviform; The powerful rubber of peviform 10 tops are circular open planes, and lower inner surface presents peviform closure plane, and the powerful rubber 10 inner dividing range place's upper inside surface of peviform and lower inner surface present Y shape annular distribution; The powerful rubber 10 outside dividing range place's outer surface of upper of peviform also presents Y shape annular distribution with lower external face, and outside dividing range has certain thickness and presents circularly, and the powerful rubber 10 of peviform is outside middle has an edge annular boss below; The powerful rubber 10 of peviform is arranged in the crack of upper cover 8 and lower house 15 junctions, the powerful rubber 10 upper surface annulus positions of peviform and upper cover 8 annulus positions, internal annular groove internal upper part lower surface compress and sealing, and the powerful rubber 10 lower surface annulus positions of peviform and lower house 15 annulus positions, upper surface, top compress and sealing.The outside middle edge below of the powerful rubber 10 of peviform has an annular boss; Also tangent in the interior annular groove of the outside intermediate annular boss below of the pallet push rod powerful rubber 10 of 17 faces of cylinder, upper end insertion peviform, upper transverse plane contacts with the outside interior annular groove bottom surface of intermediate annular boss below of peviform brute force rubber 10; The interior annular groove of the outside intermediate annular boss below of the powerful rubber 10 of peviform is coaxial with pallet push rod 17 faces of cylinder, upper end, plays positioning and guiding effect.
The tray top of the middle pallet push rod 17 with metal round steel plate core 13 is disks, the lower edge of the pallet of pallet push rod 17 is annular boss, the push rod lower end of pallet push rod 17 is provided with outside thread, also tangent in the interior annular groove of the outside intermediate annular boss below of the powerful rubber 10 of the face of cylinder, pallet upper end insertion peviform of pallet push rod 17, upper transverse plane contacts with the outside interior annular groove bottom surface of intermediate annular boss below of peviform brute force rubber 10; Push rod in pallet push rod 17 stretches out from the lower house 15 pilot hole D of bottom centre, is connected successively by bottom outside thread with power transmission shaft clevis jam nut 18, power transmission shaft clevis 19 upper end negative threads; Insert in the groove of annular boss of pallet push rod 17 lower ends pretension pull back spring 14 upper ends, insert in the annular groove of lower house 15 bottom interior surfaces its lower end, pretension pull back spring 14 cylindricals are all tangent with pallet push rod 17 and lower house 15 annular groove inner peripheries, ensured between powerful rubber diaphragm assembly 9, lower house and pallet push rod power transmission shaft clevis assembly 12, pallet push rod and spring assembly 16 coaxial; Power transmission pin 21 on power transmission shaft clevis 19 is connected with brake actuation mechanism.
Tractor trailer compressed air brake cylinder is rational in infrastructure, cost is lower, can realize fast assembling-disassembling.Quick air-discharge noise reducing dust apparatus structure is simple, use is reliable, has reduced noise and environmental pollution.Inside upper limb circle, the powerful canvas core of the reeded peviform of tool is arranged in the powerful rubber of circular peviform, has increased the intensity of powerful rubber diaphragm assembly, has improved service life.The inner dividing range place's upper inside surface of powerful rubber diaphragm assembly and lower inner surface present Y shape annular distribution, outside dividing range place's outer surface of upper and lower external face also present Y shape annular distribution, outside dividing range has certain thickness and presents circularly, has strengthened sealing property.Round metal steel plate core is arranged in pallet push rod, pallet push rod is made into one by engineering plastics, easy for installation and ensured that well the pallet push rod of tractor trailer compressed air brake cylinder is coaxial with upper shell, powerful rubber diaphragm assembly, lower house and spring in use, improve thrust performance and reliability of service and the life-span of tractor trailer compressed air brake cylinder, ensured the traffic safety of Tractor-trailer unit.
Claims (6)
1. tractor trailer compressed air brake cylinder, comprising: upper cap assembly (1), Quick air-discharge noise reducing dust device (5), powerful rubber diaphragm assembly (9), lower house and pallet push rod power transmission shaft clevis assembly (12), pallet push rod and spring assembly (16), it is characterized in that: upper at least two uniform concave grooves of cap assembly (1) lower inside setting, lower house and at least two uniform convex flanges of pallet push rod power transmission shaft clevis assembly (12) upper outside setting, upper cap assembly (1) compresses concavo-convex connection of rear rotation with lower house and pallet push rod power transmission shaft clevis assembly (12) that centre accompanies powerful rubber diaphragm assembly (9), makes Quick air-discharge noise reducing dust device (5) be in cap assembly (1) upper right side, the centerline of upper cover (8) upper surface in upper cap assembly (1) is provided with center longitudinal hole (A), the left side parallel with line of centers is provided with left side longitudinal hole (B), and in upper cover (8) upper right side, horizontal direction is provided with the cross through hole (C) communicating with center longitudinal hole (A), the Quick air-discharge valve (2) of Quick air-discharge noise reducing dust device (5) is arranged in upper cover (8) the central upper portion longitudinal hole (A) of cap assembly (1), and noise reducing dust device (6) is connected to upper cap assembly (1) outside, upper right side by noise reducing dust latching device (7), powerful rubber diaphragm assembly (9) is arranged between cap assembly (1) and lower house and pallet push rod power transmission shaft clevis assembly (12), pallet push rod and spring assembly (16) are arranged on by the upper end disc of pallet push rod (17) face of cylinder in the interior annular groove of the outside intermediate annular boss below of powerful rubber diaphragm assembly (9) and are tangent, on it, transverse plane contacts with the outside interior annular groove bottom surface of intermediate annular boss below of powerful rubber diaphragm assembly (9), the push rod of pallet push rod (17) in middle part and lower end be provided with outside thread, the lower end of pallet push rod (17) is connected with power transmission shaft clevis jam nut (18) and the power transmission shaft clevis (19) of pallet push rod power transmission shaft clevis assembly (12) with lower house by outside thread.
2. tractor trailer compressed air brake cylinder according to claim 1, is characterized in that: upper cap assembly (1) comprising: upper cover and air inlet plug screw O-ring seals (3), air inlet plug screw (4), upper cover (8); Air inlet plug screw (4) lower end is by negative thread and the external thread bolt connection of upper cover (8) that upper cover and air inlet plug screw O-ring seals (3) are installed, air inlet plug screw (4) lower end bosom and upper cover (8) top are provided with gap, and air inlet plug screw (4) upper end is connected with the high pressure gas pipeline assembly of air brake valve output by outside thread.
3. tractor trailer compressed air brake cylinder according to claim 1, is characterized in that: Quick air-discharge noise reducing dust device (5) comprising: Quick air-discharge valve (2), noise reducing dust device (6), noise reducing dust latching device (7); Quick air-discharge valve (2) is arranged in upper cover (8) central upper portion longitudinal hole (A), noise reducing dust device (6) is arranged in noise reducing dust latching device (7) internal annular groove, noise reducing dust latching device (7) is by negative thread and upper cover (8) upper right side cross through hole (C) external part external thread bolt connection, noise reducing dust device (6) left side and upper cover (8) upper right side cross through hole (C) external part end contact.
4. tractor trailer compressed air brake cylinder according to claim 1, is characterized in that: powerful rubber diaphragm assembly (9) comprising: the powerful rubber of peviform (10), the powerful canvas core of peviform (11); Inside upper limb circle, the tool powerful canvas core of reeded peviform (11) is arranged in the powerful rubber of circular peviform (10), the powerful rubber (10) of peviform top is circular open plane, lower inner surface presents peviform closure plane, and powerful rubber (10) the inner dividing range place's upper inside surface of peviform and lower inner surface present Y shape annular distribution; Powerful rubber (10) the outside dividing range place's outer surface of upper of peviform and lower external face also present Y shape annular distribution, and outside dividing range presents circular, and the powerful rubber of peviform (10) outside has edge annular boss below; The powerful rubber of peviform (10) is arranged in the crack of upper cover (8) and lower house (15) junction, in the interior annular groove of the outside intermediate annular boss below of the powerful rubber of peviform (10), insert pallet push rod (17) face of cylinder, upper end tangent, powerful rubber (10) outside interior annular groove bottom surface and pallet push rod (17) the upper end plane contact of intermediate annular boss below.
5. tractor trailer compressed air brake cylinder according to claim 1, is characterized in that: lower house and pallet push rod power transmission shaft clevis assembly (12) comprising: lower house (15), power transmission shaft clevis jam nut (18), power transmission shaft clevis (19), opening locking pin (20), power transmission pin (21); Push rod in pallet push rod (17) stretches out from lower house (15) bottom centre's pilot hole (D), and power transmission shaft clevis jam nut (18), power transmission shaft clevis (19) upper end negative thread are connected with the push rod bottom outside thread in pallet push rod (17) successively; Power transmission pin (21) stretches out by two of lower ends of power transmission shaft clevis (19) through hole, left end boss right side contacts with power transmission shaft clevis (19) lower end left surface, and opening locking pin (20) passes and breaks locking into two with one's hands to both sides from the radial hole of power transmission pin (21) right-hand member sponson.
6. tractor trailer compressed air brake cylinder according to claim 1, is characterized in that: pallet push rod and spring assembly (16) comprising: round metal steel plate core (13), pretension pull back spring (14), pallet push rod (17); Round metal steel plate core (13) is arranged in pallet push rod (17), and the tray top of pallet push rod (17) is disk, and the lower edge of the pallet of pallet push rod (17) is annular boss; The push rod lower end of pallet push rod (17) is provided with outside thread; Insert in the groove of annular boss of pallet push rod (17) lower end pretension pull back spring (14) upper end, insert in the annular groove of lower house (15) bottom interior surface its lower end, and pretension pull back spring (14) cylindrical is all tangent with pallet push rod (17) and lower house (15) annular groove inner periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420004131.2U CN203637801U (en) | 2014-01-06 | 2014-01-06 | Tractor trailer brake chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420004131.2U CN203637801U (en) | 2014-01-06 | 2014-01-06 | Tractor trailer brake chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203637801U true CN203637801U (en) | 2014-06-11 |
Family
ID=50869069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420004131.2U Withdrawn - After Issue CN203637801U (en) | 2014-01-06 | 2014-01-06 | Tractor trailer brake chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203637801U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103693032A (en) * | 2014-01-06 | 2014-04-02 | 南阳理工学院 | Brake chamber of tractor trailer |
| CN105587808A (en) * | 2014-10-21 | 2016-05-18 | 湖南中联重科车桥有限公司 | Brake chamber, brake and vehicle |
-
2014
- 2014-01-06 CN CN201420004131.2U patent/CN203637801U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103693032A (en) * | 2014-01-06 | 2014-04-02 | 南阳理工学院 | Brake chamber of tractor trailer |
| CN105587808A (en) * | 2014-10-21 | 2016-05-18 | 湖南中联重科车桥有限公司 | Brake chamber, brake and vehicle |
| CN105587808B (en) * | 2014-10-21 | 2018-06-08 | 湖南中联重科车桥有限公司 | Brake chamber, brake and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140611 Effective date of abandoning: 20150909 |
|
| RGAV | Abandon patent right to avoid regrant |