CN216742883U - High-airtightness anti-blocking pressure wave protection valve - Google Patents

Abstract

The utility model discloses a high-air-tightness anti-blocking pressure wave protection valve which comprises an installation bottom plate, wherein a plurality of first connecting through holes are vertically formed in the end parts of the two sides of the installation bottom plate, a plurality of second connecting through holes are vertically formed in the positions, close to the first connecting through holes, of the two sides of the installation bottom plate, and the first connecting through holes are fixedly connected with two short brackets through a plurality of first bolts respectively. The nut piece structure does not need top plate support, adopts the reinforcing rib plates to ensure structural stability, reduces the use amount of sectional materials, further reduces the whole weight, opens the movable plate in a side-opening rotating mode, guides and limits the sealing rotating plate through the shaft rod, does not need to additionally arrange a guide groove structure compared with the traditional upper and lower sealing plate modes, and fundamentally avoids the situation that the sealing plate is clamped and blocked due to the clamping of the guide groove.

Description

High-airtightness anti-blocking pressure wave protection valve

Technical Field

The utility model relates to the technical field of rail transit air conditioner accessories, in particular to a high-air-tightness anti-blocking pressure wave protection valve.

Background

The pressure change value of the running train is in direct proportion to the square of the train speed, the higher the train speed is, the larger the pressure change value is, and the pressure change rate of the high-speed train can reach thousands of Pa in 1 second. Although the train body, door and window have good air pressure tightness, the rapid change of the external air pressure can be transmitted into the train through the ventilation equipment, the pressure in the ears of the passengers and the external air pressure can not reach balance due to the air pressure change in a short time, and the uncomfortable feeling of auditory organs can be caused by the pressure difference between the inside and the outside of the eardrum. Therefore, when the vehicle speed is higher than 160KM/h, a pressure wave protection system is needed to control the fluctuation of the pressure in the vehicle, and the influence of the pressure wave is reduced to ensure the comfort of passengers. The pressure wave protection valve can be controlled by the pressure wave controller, and is closed when the pressure difference between the inside and the outside of the train meets the triggering condition, so that the air flow inside and outside the train is isolated, and the pressure fluctuation of the air inside the train is restrained. The pressure wave protection valve that uses at present generally adopts solid steel frame construction as bearing structure, and the weight of this kind of structure is great, not only can cause its self inertia great, produces great vibration easily to lead to the component to damage, solid construction's intensity is lower moreover, leads to the life-span of this device to be limited.

To this, the chinese utility model patent that the publication number is CN214929709U discloses a train air conditioner is useless to be arranged pressure ripples protective valve, and this pressure ripples protective valve includes support frame, slide mechanism, baffle, axle formula arm and electric switch executor, the support frame includes base, pillar, connecting strip, main frame strip and fixed block, base fixed mounting is in the air intake and the air outlet department of train air conditioner, and is a plurality of the pillar one-to-one symmetry is vertical to be fixed both sides around the base top, the connecting strip is transversely fixed two that correspond in both sides the top of pillar, the main frame strip is fixed around along and is set up a plurality of the centre at connecting strip top, the connecting strip has two and symmetry to set up the front and back portion of main frame strip. Meanwhile, the utility model can lighten the weight of the whole protective valve by using the flanging structure for the connecting strip and the main frame strip and lightening holes arranged on the main frame strip, and can reduce the vibration amplitude of the device when pressure waves are generated when the pressure difference between the inside and the outside of the train is overlarge as much as possible.

This protection valve uses the body frame strip as supporting, but the section bar uses more, leads to weight heavier, and the baffle adopts traditional mode of reciprocating, utilizes the guide way of both sides to lead to the baffle, takes place the dead condition of card in the guide way very easily, and then leads to the fender jamming, is unfavorable for using, and in addition protection valve is because structure itself, need use a large amount of bolt and nut to fix, and the gap appears often with the through-hole in nut junction, influences its holistic gas tightness.

Therefore, a high-air-tightness anti-blocking pressure wave protection valve is proposed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-airtightness anti-blocking pressure wave protection valve to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a high-air-tightness anti-blocking pressure wave protection valve comprises an installation bottom plate, wherein a plurality of first connecting through holes are vertically formed in the end portions of two sides of the installation bottom plate, a plurality of second connecting through holes are vertically formed in the positions, close to the first connecting through holes, of two sides of the installation bottom plate, the first connecting through holes are fixedly connected with two short supports through a plurality of first bolts respectively, the two short supports are located at the positions of two sides of the top surface of the installation bottom plate, the second connecting through holes are fixedly connected with two high supports through a plurality of fourth bolts respectively, and the two high supports are located at the positions of two sides of the top surface of the installation bottom plate respectively;

two reinforcing rib plates are fixedly connected to one side, close to each other, of each high support respectively, the reinforcing rib plates are perpendicular to the high supports, and the width of the top ends of the reinforcing rib plates is smaller than that of the bottom ends of the reinforcing rib plates;

the two short supports are mutually close to one side and are respectively connected with two first shaft sleeves in a rotating mode, a shaft lever is fixedly connected between the two first shaft sleeves, and the bottom surface of the shaft lever is fixedly connected with a sealing rotating plate through a plurality of second bolts.

Preferably, two connecting blocks are fixedly connected to one side, close to each other, of the top ends of the two high supports respectively, two second shaft sleeves are rotatably connected to the two connecting blocks respectively, and power shafts are fixedly sleeved on the inner sides of the two second shaft sleeves.

Preferably, the top surface of one side of the sealing rotating plate, which is far away from the shaft lever, is fixedly connected with a guide pressure plate through two third bolts, and the top surface of the guide pressure plate is fixedly connected with two hinge blocks.

Preferably, the power shaft is provided with two hinged blocks corresponding to the positions of which one end of a transmission handle is respectively sleeved, the other end of the transmission handle is rotatably connected with one end of a transmission rod through a first threaded pin, the other end of the transmission rod is rotatably connected with the hinged blocks through a second threaded pin, the inner side wall of the transmission handle is close to the position of the power shaft and provided with a limiting groove, the power shaft corresponds to a fixedly connected locking clamping groove at the position of the limiting groove, and the locking clamping groove is clamped with the limiting groove.

Preferably, an actuator support is fixedly connected to the outer side of one of the high supports, an electric switch actuator is fixedly connected to the side wall of the actuator support, a transmission shaft head is fixedly connected to one end, close to the electric switch actuator, of the power shaft, the transmission shaft head is fixedly connected to the inner side of an output shaft of the electric switch actuator, and an external wire is fixedly connected to the electric switch actuator.

Preferably, the actuator support corresponds power shaft position rigid coupling latch segment, set up the joint sleeve on the latch segment, the power shaft rotates to be connected in the joint sleeve, rigid coupling stopper on the latch segment, rigid coupling U type card pipe on the stopper, U type card pipe inside wall contact power shaft lateral wall.

Preferably, a plurality of nut pieces are respectively connected to the first bolt, the second bolt, the third bolt and the fourth bolt in a threaded manner, each nut piece comprises a hexagon nut, a circular plate is fixedly connected to the bottom surface of the hexagon nut, a sealing plug bush is fixedly connected to the center position of the bottom surface of the circular plate, and internal thread portions are arranged at the center positions of the hexagon nut, the circular plate and the sealing plug bush.

Preferably, an air inlet is formed in the center of the mounting base plate, a sealing inner ring is fixedly connected to the inner side wall of the air inlet, and a plurality of mounting blocks are fixedly connected to the top surface of the edge of the mounting base plate.

Compared with the prior art, the utility model has the beneficial effects that:

the nut piece structure does not need top plate support, adopts the reinforcing rib plates to ensure structural stability, reduces the use amount of sectional materials, further reduces the whole weight, opens the movable plate in a side-opening rotating mode, guides and limits the sealing rotating plate through the shaft rod, does not need to additionally arrange a guide groove structure compared with the traditional upper and lower sealing plate modes, and fundamentally avoids the situation that the sealing plate is clamped and blocked due to the clamping of the guide groove.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the closed state of the present invention;

FIG. 3 is an enlarged view of the transmission structure at the sealing rotating plate according to the present invention;

FIG. 4 is a schematic view of the structure of the mounting base plate of the present invention;

FIG. 5 is a schematic view of the actuator support according to the present invention;

FIG. 6 is a sectional view of the locking block of the present invention;

fig. 7 is a sectional structure view of the nut member of the present invention.

In the figure: 1. mounting a bottom plate; 2. a short support; 3. a shaft lever; 4. sealing the rotating plate; 5. a high support; 6. a power shaft; 7. an electric switch actuator; 8. an actuator support; 9. a nut member; 11. an air inlet; 12. sealing the inner ring; 13. mounting blocks; 14. a first connecting through hole; 15. a second connecting through hole; 21. a first bolt; 22. a first bushing; 31. a second bolt; 41. a guide pressure plate; 42. a third bolt; 43. a hinged block; 51. connecting blocks; 52. a second shaft sleeve; 53. reinforcing rib plates; 54. a fourth bolt; 61. a drive handle; 62. a first threaded pin; 63. a transmission rod; 64. a second threaded pin; 65. locking the clamping groove; 66. a limiting groove; 67. a transmission shaft head; 71. external connection; 81. a locking block; 82. clamping the sleeve; 83. a U-shaped clamping pipe; 84. a limiting block; 91. a hexagonal nut; 92. a circular plate; 93. sealing the plug bush; 94. an internal threaded portion.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

referring to fig. 1-7, the present invention provides a technical solution: a high-airtightness anti-blocking pressure wave protection valve comprises an installation bottom plate 1, wherein a plurality of first connecting through holes 14 are vertically formed in the end portions of two sides of the installation bottom plate 1, a plurality of second connecting through holes 15 are vertically formed in the positions, close to the first connecting through holes 14, of two sides of the installation bottom plate 1, the first connecting through holes 14 are fixedly connected with two short supports 2 through a plurality of first bolts 21 respectively, the two short supports 2 are located at the positions of two sides of the top surface of the installation bottom plate 1, the second connecting through holes 15 are fixedly connected with two high supports 5 through a plurality of fourth bolts 54 respectively, and the two high supports 5 are located at the positions of two sides of the top surface of the installation bottom plate 1 respectively;

two reinforcing rib plates 53 are fixedly connected to one sides, close to each other, of the two high supports 5 respectively, the reinforcing rib plates 53 are perpendicular to the high supports 5, and the width of the top ends of the reinforcing rib plates 53 is smaller than that of the bottom ends;

the two short supports 2 are close to one side and are respectively and rotatably connected with the two first shaft sleeves 22, the shaft lever 3 is fixedly connected between the two first shaft sleeves 22, the bottom surface of the shaft lever 3 is fixedly connected with the sealing rotating plate 4 through the second bolts 31, top plate support is not needed in the utility model, the structural stability is ensured by adopting the reinforcing rib plate 53, the use amount of sectional materials is reduced, the whole weight is further reduced, the movable plate is opened in a side opening rotating mode, the sealing rotating plate 4 is guided and limited through the shaft lever 3, compared with the traditional upper sealing plate and lower sealing plate mode, the guide groove structure does not need to be additionally arranged, and the condition that the sealing plate is clamped due to clamping of the guide groove is fundamentally avoided.

Example 2:

referring to fig. 1 and fig. 3, two connecting blocks 51 are fixedly connected to the top ends of the two high brackets 5 near to each other, two second shaft sleeves 52 are rotatably connected to the two connecting blocks 51, and the power shaft 6 is fixedly sleeved on the inner sides of the two second shaft sleeves 52.

Referring to fig. 1 and fig. 3, the top surface of the sealing rotating plate 4 away from the shaft 3 is fixedly connected to a guiding pressure plate 41 through two third bolts 42, and the top surface of the guiding pressure plate 41 is fixedly connected to two hinge blocks 43.

Referring to fig. 3, the positions of the power shaft 6 corresponding to the two hinge blocks 43 are respectively sleeved with one end of a transmission handle 61, the other end of the transmission handle 61 is rotatably connected with one end of a transmission rod 63 through a first threaded pin 62, the other end of the transmission rod 63 is rotatably connected with the hinge blocks 43 through a second threaded pin 64, a limiting groove 66 is formed in the position, close to the power shaft 6, of the inner side wall of the transmission handle 61, the position, corresponding to the limiting groove 66, of the power shaft 6 is fixedly connected with a locking clamping groove 65, the locking clamping groove 65 is clamped with the limiting groove 66, the transmission handle 61 is driven to rotate through the rotation of the power shaft 6, and therefore the opening and closing effect of the sealing rotating plate 4 is achieved.

Referring to fig. 2-3, an actuator support 8 is fixedly connected to the outer side of one of the high supports 5, an electric switch actuator 7 is fixedly connected to the side wall of the actuator support 8, a driving shaft head 67 is fixedly connected to one end of the power shaft 6 close to the electric switch actuator 7, the driving shaft head 67 is fixedly connected to the output shaft of the electric switch actuator 7, and an external connection line 71 is fixedly connected to the electric switch actuator 7.

Referring to fig. 5-6, the actuator bracket 8 is fixedly connected with a locking block 81 corresponding to the position of the power shaft 6, the locking block 81 is provided with a clamping sleeve 82, the power shaft 6 is rotatably connected in the clamping sleeve 82, the locking block 81 is fixedly connected with a limiting block 84, the limiting block 84 is fixedly connected with a U-shaped clamping tube 83, the inner side wall of the U-shaped clamping tube 83 contacts the outer side wall of the power shaft 6, when the electric switch actuator 7 drives the power shaft 6 to rotate, the side wall of the power shaft 6 is in frictional contact with the U-shaped clamping tube 83 and the clamping sleeve 82, the damping force during rotation is improved, and the rotation is more stable.

Referring to fig. 1 and 7, a plurality of nut members 9 are respectively screwed on the first bolt 21, the second bolt 31, the third bolt 42 and the fourth bolt 54, each nut member 9 includes a hexagon nut 91, a circular plate 92 is fixedly connected to the bottom surface of the hexagon nut 91, a sealing insert 93 is fixedly connected to the center position of the bottom surface of the circular plate 92, and an internal thread 94 is formed at the center positions of the hexagon nut 91, the circular plate 92 and the sealing insert 93.

Referring to fig. 4, an air inlet 11 is formed in the center of the mounting base plate 1, the inner side wall of the air inlet 11 is fixedly connected with a sealing inner ring 12, and the top surface of the edge of the mounting base plate 1 is fixedly connected with a plurality of mounting blocks 13.

Example 3:

before the utility model is used, the mounting base plate 1 is mounted at the ventilation position of a rail transit air conditioner fresh air system, an external wire 71 on the electric switch actuator 7 is externally connected to a control device, the power shaft 6 is driven to rotate by starting the electric switch actuator 7, so as to drive the transmission handle 61, the end part of the transmission handle 61 drives the transmission rod 63 to move, so as to enable the guide pressure plate 41 to bear force, one side of the sealing rotating plate 4 is rotatably connected to the mounting base plate 1, the other side of the sealing rotating plate receives the force of the guide pressure plate 41, so as to rotate, the effect of opening or closing the air inlet 11 on the mounting base plate 1 is realized, the ventilation and air exchange in the vehicle can be realized, the fresh air quantity in the vehicle is ensured, the utility model does not need top plate support, the structural stability is ensured by adopting the reinforcing rib plate 53, the section quantity is reduced, the whole weight is further lightened, and the movable plate is opened by using a side-opening rotating mode, the sealing rotating plate 4 is guided and limited through the shaft rod 3, compared with the traditional mode of upper and lower sealing plates, a guide groove structure is not needed to be additionally arranged, and the situation that the sealing plates are clamped and blocked due to the dead guide groove is fundamentally avoided.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a high gas tightness prevents card stagnation pressure wave protection valve, includes mounting plate (1), its characterized in that:

a plurality of first connecting through holes (14) are vertically formed in the end portions of two sides of the mounting base plate (1), a plurality of second connecting through holes (15) are vertically formed in the positions, close to the first connecting through holes (14), of two sides of the mounting base plate (1), the first connecting through holes (14) are fixedly connected with two short supports (2) through a plurality of first bolts (21), the two short supports (2) are located on the positions of two sides of the top surface of the mounting base plate (1), the second connecting through holes (15) are fixedly connected with two high supports (5) through a plurality of fourth bolts (54), and the two high supports (5) are located on the positions of two sides of the top surface of the mounting base plate (1) respectively;

two reinforcing rib plates (53) are fixedly connected to one side, close to each other, of each high support (5), the reinforcing rib plates (53) are perpendicular to the high supports (5), and the width of the top ends of the reinforcing rib plates (53) is smaller than that of the bottom ends of the reinforcing rib plates;

one side, close to each other, of each of the two short supports (2) is respectively and rotatably connected with two first shaft sleeves (22), a shaft lever (3) is fixedly connected between the two first shaft sleeves (22), and the bottom surface of the shaft lever (3) is fixedly connected with a sealing rotating plate (4) through a plurality of second bolts (31).

2. The high-airtightness anti-blocking pressure wave protection valve according to claim 1, wherein: two high support (5) top is close to one side each other and is respectively the rigid coupling two connecting blocks (51), two on connecting block (51) rotate respectively and connect two second axle sleeves (52), two the inboard fixed power shaft (6) that cup joints of second axle sleeve (52).

3. The high-airtightness anti-blocking pressure wave protection valve according to claim 2, wherein: the top surface of one side, far away from the shaft lever (3), of the sealing rotating plate (4) is fixedly connected with a guide pressure plate (41) through two third bolts (42), and the top surface of the guide pressure plate (41) is fixedly connected with two hinged blocks (43).

4. The high-airtightness anti-blocking pressure wave protection valve according to claim 3, wherein: it cup joints transmission handle (61) one end respectively to correspond two articulated piece (43) positions on power shaft (6), the transmission handle (61) other end rotates through first screw thread pin (62) and connects transfer line (63) one end, transfer line (63) other end rotates through second screw thread pin (64) and connects articulated piece (43), spacing groove (66) are seted up near power shaft (6) position to transmission handle (61) inside wall, power shaft (6) correspond spacing groove (66) position rigid coupling locking draw-in groove (65), locking draw-in groove (65) joint spacing groove (66).

5. The high-airtightness anti-blocking pressure wave protection valve according to claim 2, wherein: one of them high support (5) outside rigid coupling executor support (8), executor support (8) lateral wall rigid coupling electric switch executor (7), power shaft (6) are close to electric switch executor (7) one end rigid coupling transmission spindle nose (67), transmission spindle nose (67) rigid coupling is in electric switch executor (7) output shaft, rigid coupling external connection (71) on electric switch executor (7).

6. The high-airtightness anti-blocking pressure wave protection valve according to claim 5, wherein: executor support (8) correspond power axle (6) position rigid coupling latch segment (81), set up joint sleeve (82) on latch segment (81), power axle (6) rotate to be connected in joint sleeve (82), rigid coupling stopper (84) are gone up in latch segment (81), rigid coupling U type card pipe (83) are gone up in stopper (84), U type card pipe (83) inside wall contact power axle (6) lateral wall.

7. The high-airtightness anti-blocking pressure wave protection valve according to claim 4, wherein: the first bolt (21), the second bolt (31), the third bolt (42) and the fourth bolt (54) are respectively in threaded connection with a plurality of nut pieces (9), each nut piece (9) comprises a hexagon nut (91), a circular plate (92) is fixedly connected to the bottom surface of the hexagon nut (91), a sealing plug bush (93) is fixedly connected to the center position of the bottom surface of the circular plate (92), and an internal threaded portion (94) is formed in the center positions of the hexagon nut (91), the circular plate (92) and the sealing plug bush (93).

8. The high-airtightness anti-blocking pressure wave protection valve according to claim 1, wherein: an air inlet (11) is formed in the center of the mounting base plate (1), a sealing inner ring (12) is fixedly connected to the inner side wall of the air inlet (11), and a plurality of mounting blocks (13) are fixedly connected to the top surface of the edge of the mounting base plate (1).

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