CN205101572U - Closing device that admits air is concentrated in pulse - Google Patents

Closing device that admits air is concentrated in pulse Download PDF

Info

Publication number
CN205101572U
CN205101572U CN201520829228.1U CN201520829228U CN205101572U CN 205101572 U CN205101572 U CN 205101572U CN 201520829228 U CN201520829228 U CN 201520829228U CN 205101572 U CN205101572 U CN 205101572U
Authority
CN
China
Prior art keywords
valve plate
valve
ratchet
plate
concentrated
Prior art date
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.)
Active
Application number
CN201520829228.1U
Other languages
Chinese (zh)
Inventor
曹毅
骆成汉
陈晓霞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changzhou nipod New Energy Technology Co.,Ltd.
Original Assignee
HUIFENG SHIPPING ACCESSORY MANUFACTURING Co Ltd CHANGZHOU CITY
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HUIFENG SHIPPING ACCESSORY MANUFACTURING Co Ltd CHANGZHOU CITY filed Critical HUIFENG SHIPPING ACCESSORY MANUFACTURING Co Ltd CHANGZHOU CITY
Priority to CN201520829228.1U priority Critical patent/CN205101572U/en
Application granted granted Critical
Publication of CN205101572U publication Critical patent/CN205101572U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Check Valves (AREA)

Abstract

The utility model relates to a closing device that admits air is concentrated in pulse is equipped with two at least independent valve ports on the end plate, two at least valve plate axles that hinge on the end plate are connected with the valve plate that corresponds through respective lid arm, and the valve plate corresponds with respective valve port, and the end plate is the latch fitting under the distal end of each valve plate axle is installed, upward latch fitting and lower latch fitting lock during the closure, actuating mechanism's link mechanism's connecting rod is articulated to have at least two to crank arm, respectively cranks arm and the valve plate hub connection that corresponds, and the piston axle and the connecting rod of driving cylinder are connected, its piston axle of locking cylinder of opening locking mechanism is connected with the pawl rear portion, and the pawl middle part articulates on the support, and the ratchet that has a draw -in groove is installed at one of them valve plate epaxially, and the spring is installed on support and pawl. The utility model discloses compact structure through a plurality of valve plates and valve port cooperation structure, need not to increase the driving moment, can open and close rapidly the valve plate that the great vent of size was located, and low in manufacturing cost, it is sealed reliable, have better anti shock and vibration nature.

Description

Intake closing device is concentrated in a kind of pulse
Technical field
This model utility relates to a kind of pulse and concentrates intake closing device, belongs to pneumatic closure techniques field.
Background technique
Concentrated intake closing device is generally used for as ultra-clean medicament compartment, aseptic operating room, test room and cabin peculiar to vessel etc., its locular wall is provided with ventilated port usually, valve plate on intake closing device is concentrated by opening ventilating hole place, regularly or indoor air is changed temporarily, when outdoor has harmful dusty gas, then need quick closedown door-plate and cut off ventilating hole.For reaching quick closedown ventilating hole, usually adopt pneumatic valve band to control the keying of valve plate, but the inside nominal diameter of ventilated port that the valve plate that pneumatic valve controls opens and closes is mostly at below 200mm.For the concentrated intake closing device being arranged on ventilating hole general goal, its Dimension of Valve Plate also requires larger, as adopted special large-scale pneumatic valve, not only volume is large, Heavy Weight, take up room large, also can cause and inconvenience is installed, and the usage requirement of quick closedown cannot be met, therefore limit the use occasion of such pneumatic valve.Secondly, existing concentrated intake closing device all adopts a valve plate, for the valve plate of big orifice, also just needs to increase Dimension of Valve Plate, large-sized Dimension of Valve Plate is manufactured and is installed the impact of factor, self-deformation is comparatively large, and valve plate is connected by fastening piece with lid arm in addition, because valve plate can not regulate automatically, cause the damage ring of seal ring, therefore not easily keeping long-time better sealability, especially also easily valve plate distortion after being subject to exterior vibration impact, makes its sealability decline further.As the thickness by increasing valve plate improves its rigidity, and improve its shock resistance, then need larger driving power to realize it and open and close, but the requirement of fast opening and closing can not be met.As adopted the light material of high strength to make valve plate, then increase substantially manufacture cost.Have again, concentrate intake closing device under the Action of Wind pressure being subject to outside impact, vibrations and outside, or under indoor Action of Wind pressure, valve plate opening and closing is unstable, and cause valve plate during closedown occur crack and produce air leakage phenomena, make outside air enter indoor, maybe the valve of unlatching is closed suddenly, and affect personnel and equipment normally runs.
Summary of the invention
The purpose of this utility model be to provide a kind of compact structure, by multiple valve plate and valve mouth structure, without the need to increasing driving moment, can open and close rapidly the valve plate at larger-size ventilated port place, low cost of manufacture, sealing is reliable, and intake closing device is concentrated in the pulse with better anti shock and vibration.
The utility model is the technological scheme achieved the above object: intake closing device is concentrated in a kind of pulse, it is characterized in that: comprise end plate, be positioned at the frame of end plate sidepiece, described end plate is provided with at least two independently valve ports, the lug boss of each valve port periphery is provided with seal ring, at least two valve shafts be hinged on end plate are connected with corresponding valve plate by respective lid arm, and valve plate is corresponding with respective valve port, end plate is provided with lower latch fitting at the far-end of each valve shaft, each valve plate time closed is crimped on the seal ring of corresponding valve port, be arranged on upper latch fitting on each valve plate and lower latch fitting fastens, described frame be provided with driving mechanism and open locking mechanism, described driving mechanism comprises linkage mechanism and is arranged in frame for controlling the drive cylinder of valve plate opening and closing, linkage mechanism comprises connecting rod and at least two of being hinged on connecting rod crank arm, and respectively crank arm and to connect with corresponding valve shaft, the piston shaft of drive cylinder is connected with connecting rod, and the side that frame is positioned at drive cylinder is provided with the switch for controlling opening and closing stroke, described unlatching locking mechanism comprises locking cylinder, ratchet, ratchet and bearing, its piston shaft of rack-mounted locking cylinder is connected with ratchet rear portion, and be hinged in the middle part of ratchet on bearing, the described ratchet with draw-in groove is arranged on one of them valve shaft, and spring fitting is on bearing and ratchet, drive cylinder drivening rod and cranking arm make each valve shaft rotating opening separately corresponding valve plate time, the piston shaft of locking cylinder stretches out in the draw-in groove that to be withstood on ratchet front portion on ratchet and locks.
The utility model is provided with at least two valve ports on end plate, therefore at least two valve plates can be adopted and corresponding and each valve port, the action simultaneously of two valve plates is controlled by driving mechanism, and open or close valve plate, can by large-area carrying out of valve plate zero, and while the ventilation usage requirement of large area space can be met, reach the requirement of fast opening and closing.The utility model adopts multiple valve plate for large-area ventilated port place, large-area valve plate can be divided into plural valve plate, thus significantly reduce the dimensioned area of each valve plate, under the prerequisite of valve plate same thickness, the impact of valve plate accuracy of manufacturing and the factor of installation can be reduced, due to valve plate rigidity can be ensured, make valve plate also not yielding, and improve valve plate and sealing valve port, do not improving under manufacture cost, outside impact and vibrations can be afforded, there is good anti shock and vibration.Driving mechanism of the present utility model have employed connecting rod and drive cylinder structure, and connecting rod is hinged on plural cranking arm, respectively crank arm and to be connected with each self-corresponding valve shaft, therefore swung by a drive cylinder control link, when the fore and aft motion of drive cylinder, and drivening rod moves up or down, thus open valve plate or close valve plate.The utility model is provided with lower latch fitting at end plate at the far-end of each valve shaft, each valve plate time closed is crimped on the seal ring of corresponding valve port, make to be arranged on upper latch fitting on each valve plate and lower latch fitting fastens, under the Action of Wind pressure of outside impact, vibrations and outside can be solved, or under indoor Action of Wind pressure, make valve plate crack and produce the problem of leaking out.Unlatching locking mechanism of the present utility model adopts click and locking cylinder structure, after opening valve plate, by locking cylinder action, ratchet is pinned on one of them valve plate dog end, therefore only have valve plate to open, could lock valve shaft, reliable operation when opening or closing.The utility model lid arm is connected with valve plate and adopts spherical surface connecting structure, become to coordinate by the bulb on link with the ball groove on valve plate bearing and the ball on ball cover and can relatively rotate, to regulate valve plate in the angle of all directions, because the angle of valve plate can adjust in time automatically, on the one hand in closing course, cushioning effect is played, to extend the working life of seal ring when valve plate instantaneous touch seal ring.On the other hand, due to valve plate adjusting angle at any time, on seal ring valve plate being stablized be pressed on valve port, improve the sealability of valve plate and valve port further.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Fig. 1 is the structural representation that intake closing device is concentrated in a kind of pulse of the utility model.
Fig. 2 is the plan structure schematic diagram of Fig. 1.
Fig. 3 is the side-looking structural representation of Fig. 1.
Fig. 4 is the utility model driving mechanism and the structural representation opening locking mechanism.
Fig. 5 is the A-A sectional structure schematic diagram of Fig. 4.
Fig. 6 is the B-B sectional structure schematic diagram of Fig. 4.
Wherein: 1-end plate, 1-1-valve port, 1-11-lug boss, 2-valve plate, 3-lid arm, 4-axle sleeve, 5-valve shaft, 6-buffer arm, 7-valve plate bearing, 8-upper latch fitting, 9-lower latch fitting, 10-seal ring press strip, 11-emergent manual shaft, 12-manual lock mandrel, 13-frame, 14-seal ring, 15-filter screen, 16-bumper, 17-sealing gasket, 18-link, 19-ball cover, 20-locking support, 21-locking cylinder, 22-ratchet, 23-bearing, 24-ratchet, 25-switch, 26-crank arm, 27-connecting rod, 27-1-tooth bar, 28-gear support, 29-emergency gear, 30-upper bracket, 31-drive cylinder, 32-spring.
Embodiment
See shown in Fig. 1 ~ 6, intake closing device is concentrated in a kind of pulse of the utility model, comprises end plate 1, is positioned at the frame 13 of end plate 1 sidepiece; this frame 13 can be welded on one end of end plate; this frame 13 can be box-shaped frame, driving mechanism and unlatching is locked organization establishes in casing, and protects.The bottom of the utility model end plate 1 is provided with all frames, to be easily installed in ventilated port place.See shown in Fig. 1 ~ 3, the utility model end plate 1 is provided with at least two independently valve port 1-1, and concentrated intake closing device of the present utility model can be used for the place that latus rectum equivalent is about greater than DN500mm ventilation.The utility model is also fixed with filter screen 15 at end plate 1 inside each valve port 1-1, with ensure ventilate prerequisite under, prevent other object from entering indoor.See shown in Fig. 1 ~ 3, the utility model can be provided with two valve port 1-1, also three valve port 1-1 can be provided with, the lug boss 1-11 of each valve port 1-1 periphery is provided with seal ring 14, and the U-shaped mounting groove of seal ring 14 is arranged on valve port 1-1 place, and sealing circle 14 has V-arrangement end, and seal ring 14 is provided with distortion hole close to V-arrangement end side, when valve plate 2 is pressed in the V-arrangement end of seal ring 14, by increasing the deformation area of seal ring 14, and seal with valve plate 2.See shown in Fig. 1 ~ 3, the utility model is provided with multiple seal ring press strip 10 at the lug boss 1-11 place of end plate 1, withstands on seal ring 14, can not move when seal ring 14 is out of shape by seal ring press strip 10.
See shown in Fig. 1 ~ 3, at least two valve shafts 5 that the utility model is hinged on end plate 1 are connected with corresponding valve plate 2 by respective lid arm 3, and each valve plate 2 is corresponding with respective valve port 1-1, the utility model end plate 1 is fixed with at least two axle sleeves 4 for connecting each valve shaft 5, in this axle sleeve 4, there is wearing layer, valve shaft 5 is rotated relative to axle sleeve 4, the utility model valve shaft 5 is arranged on axle sleeve 4, and at least one valve shaft 5 is also provided with buffer arm 6, valve shaft 5 inside end plate 1 can be provided with buffer arm 6, and end plate 1 is provided with crashproof base, crashproof base is provided with bumper 16, after opening valve plate 2, by being connected to the buffer arm 6 on valve shaft 5, connect with bumper 16 after valve shaft 5 turns an angle, and the valve plate 2 of inner side is cushioned.
See shown in Fig. 1,3, the utility model end plate 1 is provided with lower latch fitting 9 at the far-end of each valve shaft 5, and each valve plate 2 time closed is crimped on the seal ring 14 of corresponding valve port 1-1.And the upper latch fitting 8. be arranged on each valve plate 2 is connected with lower latch fitting 9, by upper latch fitting 8. and lower latch fitting 9.Upper latch fitting 8 of the present utility model and lower latch fitting 9 all adopt magnet arrangement, are crimped on seal ring 14 by magnet attraction by valve plate 2; Upper latch fitting 8. of the present utility model also can adopt lock bolt structure, and lower latch fitting 9 is made up of hinged two clamps, two clamps are connected with fastening spring, the clamping force of two clamps is determined by with fastening spring, clamp dead bolt by elastic force, when opening, then dead bolt overcomes clamping force and throws off, and conveniently locks the valve plate 2 after sealing, waved, shaking and under inner Action of Wind pressure, door-plate can be solved and leak out or crack problem.
See shown in Fig. 1 ~ 6, the utility model frame 13 be provided with driving mechanism and open locking mechanism, see shown in Fig. 4,5, the utility model driving mechanism comprises linkage mechanism and is arranged in frame 13 for controlling the drive cylinder 31 of valve plate 2 opening and closing, drive cylinder 31 can adopt cylinder or oil cylinder, and linkage mechanism comprises connecting rod 27 and at least two of being hinged on connecting rod 27 crank arm 26, respectively crank arm and 26 to connect with corresponding valve shaft 5, the each valve shaft 5 of 26 drive that makes to crank arm rotates, and opens valve plate 2 or close valve plate 2 by lid arm 3.See shown in Fig. 4,5, the piston shaft of the utility model drive cylinder 31 is connected with connecting rod 27, and the side that frame 13 is positioned at drive cylinder 31 is provided with the switch 25 for controlling its opening and closing stroke, this switch 25 can adopt proximity switch or magnetic switch etc., to control the opening and closing working stroke of drive cylinder 31.When moving on the piston shaft of drive cylinder 31, drive crank arm 26 rotation time, by crank arm 26 and lid arm 3 drive respective valve shaft 5 to rotate then to open valve plate 2, and to crank arm 26 revolutions when the piston shaft of drive cylinder 31 moves down drive, make each valve shaft 5 rotate through lid arm 3 and close valve plate 2.
See shown in Fig. 4,5, the utility model is when drive cylinder 31 or electrical system break down and cannot drive, frame 13 is also provided with emergency gear 29, emergency gear 29 is connected with emergent manual shaft 11, emergency gear 29 is arranged in frame 13 by the gear support 28 of bottom, the upper support of emergency gear 29 is on upper bracket 30, and emergent manual shaft 11 passes upper bracket 30.See shown in Fig. 4,5, the utility model connecting rod 27 sidepiece is provided with tooth bar 27-1, emergency gear 29 engages with the tooth bar 27-1 on connecting rod 27, emergency gear 29 is driven to rotate by manually-operable manual shaft 11 of meeting an urgent need, swung by emergency gear 29 drivening rod 27, and the keying of Non-follow control valve plate 2.
See Fig. 4, shown in 6, the utility model is opened locking mechanism and is comprised locking cylinder 21, ratchet 24, ratchet 22 and bearing 23, its piston shaft of locking cylinder 21 be arranged in frame 13 is connected with ratchet 22 rear portion, equally, this locking cylinder 21 adopts cylinder or oil cylinder, and be hinged in the middle part of ratchet 22 on bearing 23, drive ratchet 22 along the hinged pivot on bearing 23 by locking cylinder 21, the ratchet 24 with draw-in groove is arranged on one of them valve shaft 5, and spring 32 is arranged on bearing 23 and ratchet 22, drive cylinder 31 drivening rod 27 and crank arm 26 make each valve shaft 5 rotating opening separately corresponding valve plate 2 time, the piston shaft of locking cylinder 21 stretches out in the draw-in groove that to be withstood on ratchet 22 front portion on ratchet 24 and locks, under effect by spring 32, ratchet 22 is made to be locked on ratchet 24, therefore valve shaft 5 cannot be rotated, after only having the reset of the piston rod of locking cylinder 21 to unlock, drive cylinder 31 could control valve shaft 5 and rotates and close valve plate 2.
See shown in Fig. 4,6, the utility model frame 13 is provided with locking support 20, manual lock mandrel 12 is arranged on locking support 20, and one end of manual lock mandrel 12 is connected with the rear portion of ratchet 22, when locking cylinder 21 or system malfunctions amount, by operating manual lock shaft 12, ratchet 22 rear portion is moved down, and realize unlocking; Or operate manual lock shaft 12 ratchet 22 rear portion is moved up, and locking is realized to valve shaft 5.
See Fig. 1, shown in 2, valve plate bearing 7 sealing of the present utility model is arranged on valve plate 2, this valve plate bearing 7 is arranged on the inner side of valve plate 2, there is in valve plate bearing 7 the ball groove for regulating valve plate 2 angle, the ball cover 19 that inner side has sphere is arranged on valve plate bearing 7, bulb on link 18 is arranged in the ball groove of valve plate bearing 7 and the sphere of ball cover 19, and link 18 is connected with lid arm 3, can be relatively rotated by the ball groove on the bulb on link 18 and valve plate bearing 7 and the mating spherical surfaces on ball cover 19, to regulate valve plate 2 in the angle of all directions, be provided with between the endoporus of ball cover 19 and link 18 and swing spacing h, spacing h is at 1 ~ 15mm in this swing, as swung spacing h at 3 ~ 10mm, or swing spacing h at 5 ~ 8mm, the angle of movable adjustment valve plate 2, valve plate 2 is made reliable and stablely to be crimped on the seal ring 14 of valve port 1-1, therefore sealability can be improved further.
See shown in Fig. 1,2, valve plate bearing 7 of the present utility model is arranged on valve plate 2 by fastening piece, sealing gasket 17 is provided with between valve plate 2 and valve plate bearing 7, valve plate bearing 7 is provided with tapped hole on the top of ball groove, external thread rotary on ball cover 19 is connected on valve plate bearing 7, and link 18 to be screwed on lid arm 3 and to be locked by locking nut, and the mounting point of ball cover 19 can regulate, therefore the valve plate of different-thickness can be suitable for, and easy for installation.

Claims (8)

1. intake closing device is concentrated in a pulse, it is characterized in that: comprise end plate (1), be positioned at the frame (13) of end plate (1) sidepiece, described end plate (1) is provided with at least two independently valve ports (1-1), the lug boss (1-11) of each valve port (1-1) periphery is provided with seal ring (14), at least two valve shafts (5) be hinged on end plate (1) are connected with corresponding valve plate (2) by respective lid arm (3), and valve plate (2) is corresponding with respective valve port (1-1), end plate (1) is provided with lower latch fitting (9) at the far-end of each valve shaft (5), each valve plate (2) time closed is crimped on the seal ring (14) of corresponding valve port (1-1), the upper latch fitting (8) be arranged on each valve plate (2) fastens with lower latch fitting (9), described frame (13) be provided with driving mechanism and open locking mechanism, described driving mechanism comprises linkage mechanism and is arranged in frame (13) for controlling the drive cylinder (31) of valve plate (2) opening and closing, linkage mechanism comprises connecting rod (27) and at least two of being hinged on connecting rod (27) crank arm (26), and respectively crank arm (26) connect with corresponding valve shaft (5), the piston shaft of drive cylinder (31) is connected with connecting rod (27), and the side that frame (13) is positioned at drive cylinder (31) is provided with the switch (25) for controlling opening and closing stroke, described unlatching locking mechanism comprises locking cylinder (21), ratchet (24), ratchet (22) and bearing (23), locking cylinder (21) its piston shaft be arranged in frame (13) is connected with ratchet (22) rear portion, and ratchet (22) middle part is hinged on bearing (23), the ratchet (24) with draw-in groove is arranged on one of them valve shaft (5), and spring (32) is arranged on bearing (23) and ratchet (22), drive cylinder (31) drivening rod (27) and crank arm (26) make each valve shaft (5) rotating opening separately corresponding valve plate (2) time, the piston shaft of locking cylinder (21) stretches out locking in the draw-in groove that to be withstood on ratchet (22) front portion on ratchet (24).
2. intake closing device is concentrated in a kind of pulse according to claim 1, it is characterized in that: described end plate (1) is fixed with at least two axle sleeves (4) for connecting each valve shaft (5), and at least one valve shaft (5) is also provided with buffer arm (6), (1) is provided with crashproof base with end plate, crashproof base is provided with bumper (16).
3. intake closing device is concentrated in a kind of pulse according to claim 1, it is characterized in that: described valve plate (2) is sealed and installed with valve plate bearing (7), there is in valve plate bearing (7) the ball groove for regulating valve plate (2) angle, the ball cover (19) that inner side has sphere is arranged on valve plate bearing (7), bulb on link (18) is arranged in the ball groove of valve plate bearing (7) and the sphere of ball cover (19), and link (18) is connected with lid arm (3), and be provided with between the endoporus of ball cover (19) and link (18) and swing spacing h.
4. intake closing device is concentrated in a kind of pulse according to claim 3, it is characterized in that: be provided with between the endoporus of described ball cover (19) and link (18) and swing spacing h at 1 ~ 15mm.
5. intake closing device is concentrated in a kind of pulse according to claim 3, it is characterized in that: described valve plate bearing (7) is arranged on valve plate (2) by fastening piece, sealing gasket (17) is provided with between valve plate (2) and valve plate bearing (7), valve plate bearing (7) is provided with tapped hole on the top of ball groove, external thread rotary on ball cover (19) is connected on valve plate bearing (7), and link (18) is screwed in lid arm (3) and goes up and locked by locking nut.
6. intake closing device is concentrated in a kind of pulse according to claim 1, it is characterized in that: described frame (13) is also provided with emergency gear (29), emergency gear (29) is connected with emergent manual shaft (11), the sidepiece of described connecting rod (27) is provided with tooth bar (27-1), and emergency gear (29) engages with the tooth bar (27-1) on connecting rod (27).
7. intake closing device is concentrated in a kind of pulse according to claim 6, it is characterized in that: described emergency gear (29) is arranged in frame (13) by the gear support (28) of bottom, the upper support of emergency gear (29) is on upper bracket (30), and emergent manual shaft (11) passes upper bracket (30).
8. intake closing device is concentrated in a kind of pulse according to claim 1, it is characterized in that: described frame (13) is provided with locking support (20), manual lock mandrel (12) is arranged on locking support (20), and one end of manual lock mandrel (12) is connected with the rear portion of ratchet (22).
CN201520829228.1U 2015-10-23 2015-10-23 Closing device that admits air is concentrated in pulse Active CN205101572U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520829228.1U CN205101572U (en) 2015-10-23 2015-10-23 Closing device that admits air is concentrated in pulse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520829228.1U CN205101572U (en) 2015-10-23 2015-10-23 Closing device that admits air is concentrated in pulse

Publications (1)

Publication Number Publication Date
CN205101572U true CN205101572U (en) 2016-03-23

Family

ID=55517354

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520829228.1U Active CN205101572U (en) 2015-10-23 2015-10-23 Closing device that admits air is concentrated in pulse

Country Status (1)

Country Link
CN (1) CN205101572U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106275356A (en) * 2016-10-31 2017-01-04 中国舰船研究设计中心 The headstock gear of a kind of ship's ventilating system and method
CN106609847A (en) * 2015-10-23 2017-05-03 常州市汇丰船舶附件制造有限公司 Pulsed concentrated air inflow closing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106609847A (en) * 2015-10-23 2017-05-03 常州市汇丰船舶附件制造有限公司 Pulsed concentrated air inflow closing device
CN106275356A (en) * 2016-10-31 2017-01-04 中国舰船研究设计中心 The headstock gear of a kind of ship's ventilating system and method

Similar Documents

Publication Publication Date Title
CN105667757A (en) Double-bent-section and semi-blocking type cargo space door of civil airplane
CN205101572U (en) Closing device that admits air is concentrated in pulse
CN203767061U (en) Door-less weather tight invisible ventilation device
CN202389474U (en) Novel loading machine engine hood
CN203264885U (en) Honey leakage prevention device of motor spindle and screen basket integration discontinuous centrifuge unloading mechanism
CN106609847A (en) Pulsed concentrated air inflow closing device
CN201651504U (en) Concentrated air suction closing device
CN102367723B (en) Rescue capsule partition sealing door
CN203516788U (en) Zero-leakage lifting valve
CN201916503U (en) Sealing air adjusting valve
CN205101579U (en) Concentrate closing device's that admits air seal structure
CN208220477U (en) For ship air holes with the self-locking airtight door gear of remote control
CN104131759A (en) Cabin door of glove box small transition cabin and glove box transition cabin
CN2895429Y (en) Connecting rod self-locking soft-sealed unloading valve
CN210949316U (en) Integrated hydraulic hoist totally-enclosed oil tank
CN203601856U (en) Top door opening and closing mechanism for electric sealed barreling vehicle
CN202706839U (en) Gravity door
CN210554814U (en) Locomotive head cover opening and closing device
CN208871118U (en) A kind of plug valve
CN202251934U (en) Quick door opening device
CN101799088B (en) Concentrated intake closing device
CN204985953U (en) Pneumatic butterfly valve is used to fire engine
CN201516986U (en) Bidirectional self-locking type discharge valve
CN210770303U (en) Flap valve opening and closing device for air supply system of glass tempering furnace
CN204703718U (en) A kind of crack between a door and its frame is closed energy saver and the door that crack between a door and its frame closes energy saver is housed

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20210719

Address after: 213000 No.116 Liantang, Shengzhuang village, Hengshanqiao Town, Wujin District, Changzhou City, Jiangsu Province

Patentee after: Changzhou nipod New Energy Technology Co.,Ltd.

Address before: 213025 Jiangsu province Changzhou Lucheng Town Private Industrial Park

Patentee before: CHANGZHOU HUIFENG MARINE ACCESSORY PRODUCE Co.,Ltd.

TR01 Transfer of patent right