CN100554635C - Overall lifting and translation protective airtight door - Google Patents

Abstract

An integral lift-and-translate protective airtight door, the hinges of which are fixedly connected to the upper shaft seat and the lower shaft seat respectively, the two seats are connected by bearings to lengthen the hinge shaft, and the upper and lower hinge plates are connected to the upper and lower seat plates The upper and lower moment balance translation supports are connected between them, one end of the upper and lower moment balance translation supports is connected with the pin shaft of the upper and lower connecting seat plates, and the other end of the upper and lower moment balance translation supports is sleeved on the extended hinge shaft. There is a gap between the upper and lower torque balance translation bearings and the hinge shaft seat, and between the pin hole of the upper and lower torque balance translation bearings and the pin shaft of the connecting seat plate. The jack lifting device is set between the upper hinge and the lower hinge. The square head of the jacking end is supported in the bearing groove of the load-bearing translation seat. There is a gap between the square head of the jacking end and the wall of the groove. The inner wall of the groove has Concave raceway with balls embedded in the raceway. It solves the problems of protection and airtightness caused by large spans, large longitudinal slopes, and large slopes, and can be widely used in protection projects.

Description

Overall lifting and translation protective airtight door

(1) Technical field

The invention relates to protective equipment for protective engineering, in particular to a protective airtight door for tunnel entrances and exits in subway civil air defense engineering.

(2) Background technology

The protective equipment of the subway civil air defense project has the functions of air defense in wartime and disaster prevention in peacetime. If the needs of civil air defense are taken into account during construction, planning, design, and construction are unified, and key parts and important facilities are well protected, the subway can be used as the main traffic artery of the city in normal times, and it can also become the main road for evacuation of urban civil air defense in wartime. Personnel shelter and material storage. Under the predicted urban secondary disasters during and after the attack of nuclear weapons, chemical weapons, and conventional weapons, the safety of personnel and equipment is guaranteed, and the comprehensive protection capability of the entire city is improved. At the same time, the civil air defense system can also protect the subway itself from the destruction of the war, saving a lot of money for the restoration of subway operation after the war.

The protective equipment used in subway civil air defense projects can be roughly divided into three categories: personnel entrance and exit protective equipment, air duct protective equipment and interval protective equipment. Among them, the section protection equipment includes section partition protective airtight doors, protective airtight doors for partition protection between lines with different protection levels, and protective airtight doors for tunnel entrances and exits. The existing manual and electro-hydraulic push-pull tunnel entrance and exit protective airtight doors need to build door chambers, which require large civil construction investment and complicated maintenance. There is a manual vertical rotary tunnel entrance and exit protective airtight door, because it is set on the track, the door span is too large, and because of the single rotating hinge, the rubber strips near and far from the door frame are compressed unevenly, which seriously affects the airtight performance. In addition, the following thorny problems also need to be solved: the sealing problem of the running rail and the lower door frame; the height difference between the two rails caused by the curve within the sweep width of the door leaf for equipment on a bend or a large longitudinal slope , The height difference caused by the large longitudinal slope and other line track conditions force the door leaf to be able to lift; the insulation, flow problems and train operation safety problems after power-on operation.

(3) Contents of the invention

The purpose of the present invention is to provide an integral lifting and translational protective airtight door, which solves the problem of the door leaf realizing the overall translation and maintaining effective sealing; it also solves the problem of difficult sealing caused by the large height difference and large longitudinal slope in the sweeping width of the door leaf; and Solve the problem of uneven compression of the rubber strips on both sides of the door frame caused by the excessive width of the door leaf.

The technical solution for realizing the purpose of the present invention: the overall lifting and translation protective airtight door includes a door leaf, a door frame, a sealing strip, a hinge, a locking device, an opening locking device, and a crank handle, and is characterized in that:

The upper hinge plate of the hinge is fixedly connected with the upper shaft seat and the lower shaft seat, and the lower hinge plate of the hinge is fixedly connected with another set of upper shaft seat and lower shaft seat. The two seats are connected by bearings to lengthen the hinge shaft. The upper and lower hinge plates and the upper and lower connecting seat plates fixed on the door leaf are connected with the upper and lower moment balance translation supports, and one end of the upper and lower moment balance translation supports is connected with the pin shaft of the upper and lower connection seat plates, The other end of the upper and lower torque balance translation support is sleeved on the extended hinge shaft, between the upper and lower torque balance translation support and the hinge shaft seat, the pin hole of the upper and lower torque balance translation support and the connecting seat plate There is a translation gap between the pin shafts;

The jack lifting device is set between the upper hinge and the lower hinge, the fixed end of the jack lifting device is fixed on the connecting support connected with the door leaf, and the jacking end square head of the jack lifting device is supported in the bearing groove of the load-bearing translation seat , There is a gap between the square head of the jacking end and the wall of the bearing groove, the seat plate of the load-bearing translation seat is fixedly connected with the door frame, the inner wall of the bearing groove has a concave raceway, and balls are embedded in the raceway.

Above-mentioned bearing pin is sleeved with bearing.

The inner wall of the bearing groove of the above-mentioned load-bearing translation seat is inlaid with a track and field track rolling translation liner, and the concave raceway on it is a track and field track-shaped raceway, and balls are embedded in the raceway.

The gap between the square head of the jacking end and the wall of the groove is 0.1-50mm.

The sealing strip at the lower part of the door leaf is a P-type hollow composite sealing strip with a sponge rod core.

Compared with the existing traditional technology, the present invention has beneficial effects: the overall lifting and translation hinge is adopted, and the lifting height can reach 160mm, which effectively solves the airtight problem caused by the large height difference and large longitudinal slope in the sweeping width of the door leaf, and reduces The sealing link is improved, and the airtight performance is improved. At the same time, through the movement coordination between the upper and lower torque balance translation support and the middle load-bearing translation seat, when the door leaf is in the closed position, the gap between the door frame and the door leaf sealing surface can be uniform and consistent, and the door leaf can be closed accurately and reliably. The uniform translation and rolling translation effectively solve the problem of uneven compression of the rubber strips on both sides of the door frame caused by the excessive width of the door leaf. The lower part of the door leaf adopts a P-type hollow compound sealing strip with a sponge rod core, which has moderate hardness, good elasticity and reliable sealing performance. Using this protective airtight door to replace the more complicated equipment used before can greatly reduce the construction cost, reduce the maintenance cost and workload. The invention belongs to non-standard protective equipment and can be applied to protective engineering.

(4) Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the A-A sectional schematic diagram of Fig. 1;

Fig. 3 is a schematic diagram of a P-type hollow composite sealing strip with a sponge rod core;

Fig. 4 is a schematic diagram of the rocker;

Fig. 5 is a schematic diagram of an opening locking device;

Fig. 6 is a schematic structural view of the hinge structure and the support of the jack lifting device;

Fig. 7 is a schematic structural view of section A of Fig. 6;

Fig. 8 is a schematic diagram of the B-B sectional structure of Fig. 6;

Fig. 9 is a schematic diagram of the C-C sectional structure of Fig. 6;

FIG. 10 is a schematic diagram of the D-D cross-sectional structure in FIG. 6 .

Fig. 11 is the structural representation of the track and field track rolling translation lining;

FIG. 12 is a schematic diagram of the E-E section structure in FIG. 11 .

1-door leaf, 2-upper door frame, 3-hinge, 4-left door frame, 5-jack lifting device, 6-track sealing box, 7-lower door frame, 8-right door frame, 9-locking device, 10-sealing strip , 11-rocking handle, 12-opening locking device;

13-upper hinge plate, 14-jack lifting device, 15-load-bearing translation seat, 151-seat plate of load-bearing translation seat, 152-bearing groove, 153-track and field track rolling translation liner, 154-ball, 155-track and field track shaped raceway;

16-lower hinge plate, 17-upper moment balance translation support, 18-lower moment balance translation support, 19-extended hinge shaft, 20-lifting end square head;

21-upper connection seat plate, 22 lower connection seat plates, 23-connection support, 24-upper shaft seat, 25-lower shaft seat, 26-pin shaft, 27-bearing, 28-pin shaft hole.

(5) Specific implementation methods

Embodiment Referring to Fig. 1-5, the overall lift-and-translate protective airtight door of the present invention includes a door leaf 1, an upper door frame 2, a left door frame 4, a lower door frame 7, a right door frame 8, a sealing strip 10, a hinge 3, and a jack lifting device 5. Locking device 9, crank handle 11, and locking device 12 in open position. The sealing strip 10 at the bottom of the above-mentioned door leaf is a P-type hollow composite sealing strip with a sponge rod core.

Referring to Figures 6, 7, 9, and 10, the upper hinge plate 13 of the hinge is fixedly connected to the upper shaft seat 24 and the lower shaft seat 25, and the lower hinge plate 16 of the hinge is fixedly connected to another set of upper shaft seat and lower shaft The two seats are connected by bearings to extend the hinge shaft 19, and the upper and lower hinge plates and the upper and lower connecting seat plates 21, 22 fixed on the door leaf are connected to the upper and lower moment balance translation bearings 17, 18 , one end of the upper and lower torque balance translation bearings is connected with the upper and lower connecting seat plates by a pin shaft 26, the other end of the upper and lower torque balance translation bearings is sleeved on the extended hinge shaft, and the upper and lower torque balance translation bearings are connected with the There is a lifting height gap h1 between the two shaft seats of the hinge.

Referring to Figures 8 and 10, the pin hole 28 of the upper torque balance translation bearing 17 is an oval hole, and there is a translation gap between it and the pin shaft 26, and the pin shaft 26 is covered with a needle bearing 27.

Referring to Figures 6 and 7, the jack lifting device 5 is located between the upper hinge and the lower hinge, the fixed end of the jack lifting device 5 is fixed on the connecting support 23 connected with the door leaf, and the jacking end of the jack lifting device is square. 20 is supported in the bearing groove 152 of the load-bearing translation seat 15, and the gap h2 between the jacking end square head 20 and the bearing groove can be 20 mm, which is the translation amount of the door leaf.

Referring to Figures 7, 11, and 12, the seat plate 151 of the load-bearing translation seat is fixedly connected with the door frame, and the inner wall of the bearing groove 152 has a concave raceway, and the track and field track rolling translation liner 153 can be embedded in the bearing groove. The raceway may be a track-shaped raceway 155 with balls 154 embedded therein.

The overall translation of the door leaf is realized by the translation hinge. The lower part of the load-bearing translation support 15 has a track-and-field-shaped rolling translation structure, the upper and lower moment balance translation supports 17, 18, and the upper and lower connecting seat plates 22 have a horizontal rolling translation structure. The cooperation of the translation structure realizes accurate and reliable uniform translation and real rolling translation of the door leaf when closing the door.

The door leaf adopts integral lifting, which can greatly reduce the air leakage link, improve the airtight performance, and effectively solve the problems caused by the height difference of the track. It not only reduces the inner seal, but also greatly reduces the amount of equipment processing, effectively reducing the equipment manufacturing cost and manufacturing difficulty.

The lifting height of the door leaf depends on the stroke of the load-bearing jack and the length of the guide rod on the up and down moment balance translation support. The lifting height of this equipment can reach 160mm.

When the door leaf turns from the open position to the closed position, due to the movement structure mechanism of the hinge, a uniform gap of 20mm is formed between the door leaf and the door frame, that is, the translation amount of the door leaf. At this time, under the action of the lock, the door leaf rolls and translates evenly, approaches and begins to compress the left, right, and upper three-side sealing strips on the door frame, and drives the jack lifting device under the condition of initially compressing the three-side sealing strips to lower the door leaf to the right position , and then use the lock to close and lock the door leaf in place to achieve support and sealing.

The door leaf is divided into upper and lower parts, which are connected by bolts during on-site installation and sealed and welded with steel plates to form a whole.

The door frame is divided into upper, lower, left and right parts. Due to the large size of the door leaf and door frame, it must be assembled on site due to the constraints of processing, transportation and installation conditions.

Hinge 3 and jack lifting device 5 are divided into three parts, load-bearing translation seat, jack lifting device and upper and lower moment balance translation support.

Locking device 9 is made up of left and right locking and bevel gear transmission system, is installed in the abdominal cavity of door leaf. Open position locking device 12 is to dress jack in the iron box, be fixed on the door leaf lower right corner. Rocking handle 11 can be taken away after using, avoids man-made destruction.

Integral sealing: the sealing support plane on the left, right and upper sides of the door leaf compresses the Ω-shaped rubber sealing strips on the left, right and upper sides of the door frame by 10-12mm to realize the support and sealing of the left, right and upper sides. The P-shaped sealing strip 10 on the lower part of the door leaf is a P-shaped hollow composite sealing strip with a sponge rod core, which has moderate hardness and good elasticity. The sealing strip is compressed by 15mm by the lifting and translation movement of the door leaf, and pressed tightly on the upper surface of the lower door frame. And it is compressed and closed with the sealing strips on the left and right door frames to form a four-side closed seal. The four locking heads protruding from the left and right sides of the door leaf and the locking head guide sleeve are sealed with hydraulic O-rings to realize internal sealing. The above three points are organically combined to form a complete sealing surface of the whole equipment.

The overall translation and lifting of the door leaf: the overall uniform translation of the door leaf is an important condition for uniform and stable compression of the sealing rubber strip, ensuring the amount of compression and improving the airtight performance. Effectively solve the problem of uneven compression of the rubber strip near the door frame and the rubber strip at the far door frame due to the large span of the door and the existence of a single rotating hinge, which seriously affects the airtight performance.

The door leaf is connected with the hinge as a whole, and the hand drive part of the jack device system on the hinge is installed and fixed in the abdominal cavity of the door leaf. There is a handle head protruding from the hole of the movable panel inside the door leaf, and the door leaf is raised and lowered by shaking with the handle 11. . The door leaf is very heavy, and the flexibility of the hinge is very important. The flexibility of the hinge determines the radial and axial frictional resistance during rotation, as well as the coaxiality and verticality of the hinge. The three parts of the hinge use the side door frame as the installation and fixing reference and the base. Through the manufacturing accuracy of the side door frame and the three parts, the coaxiality, verticality and accuracy of the installation position are ensured. The weight of the door leaf is all borne by the jack, and the upper and lower translation supports are only used to bear the overturning moment caused by the weight of the door leaf.

Sealing and flow problems between the running rail and the lower door frame: The subway running rail passes through the protective airtight door frame, and the sealing problem must be solved, as well as the insulation and flow prevention problems. The shape of the running track is complicated and needs to be replaced. It is necessary to ensure sealing and easy replacement, but also to insulate and prevent leakage damage. In order to solve the sealing problem, a sealed box for the running track was designed. The sealing box of the running rail is fixed on the lower door frame, and the running rail passes through the sealing box. The sealant block in the sealing box and the shape of the running rail are profiled, and then compressed by the pressing device to achieve the profiled seal. In order to solve the problem of insulation and prevent leakage damage, the sealing rubber blocks and rubber plates are made of silicone rubber composite insulating material with good insulation performance and flame retardant. The insulation performance of this material can reach hundreds of thousands of kilovolts, and it is widely used in the electric power industry. It can be used to replace high-voltage porcelain bottles used in high-voltage power transmission and transformation. Moreover, the flame retardant performance is also good, and its hardness can reach 60-65 Shore, with good strength. Its main technical indicators can meet the requirements of making sealant sheets and sealant blocks.

Claims (5)

1. an integral lifting and sliding type protective airtight door comprises door leaf, doorframe, weather strip, hinge page or leaf, blocking device, opens a locking device, rocking handle, it is characterized in that:

Fixedly connected axle bed and the following axle bed gone up of page or leaf plate cut with scissors in going up of hinge page or leaf, fixedly connected other one puts axle bed and following axle bed on the following hinge page or leaf plate of hinge page or leaf, add band andgudgeon page or leaf axle by the bearing connection between two, on, following hinge page or leaf plate be fixed on the door leaf on, on connecting between the lower link seat board, following equalising torque translation bearing, on, following equalising torque translation bearing one end and last, lower link seat board bearing pin connects, on, the following equalising torque translation bearing other end is enclosed within and adds on the band andgudgeon page or leaf axle, on, between following equalising torque translation bearing and the hinge page or leaf axle bed, on, the pin shaft hole of following equalising torque translation bearing leaves the translation gap with connecting between the seat board bearing pin;

The jack lifting gear is located at the hinge page or leaf and cuts with scissors between the page or leaf down, the fixed end of jack lifting gear is fixed on the connection bearing that is connected with door leaf, the jacking end square toes of jack lifting gear are supported on holding in the groove of load-bearing translating base, jacking end square toes and hold and leave the gap between the cell wall, the seat board of load-bearing translating base is fixedlyed connected with doorframe, holding the groove inwall has concave race, and raceway is embedded with ball.

2. integral lifting and sliding type protective airtight door according to claim 1 is characterized in that: above-mentioned bearing pin is with bearing.

3. integral lifting and sliding type protective airtight door according to claim 1 and 2 is characterized in that: above-mentioned load-bearing translating base holds the groove inwall and inlays track and field runway rolling translation liner, and the concave race on it is a track and field runway shape raceway, and raceway is embedded with ball.

4. integral lifting and sliding type protective airtight door according to claim 1 and 2 is characterized in that: above-mentioned jacking end square toes and the gap of holding between the cell wall are 0.1-50mm.

5. integral lifting and sliding type protective airtight door according to claim 1 and 2 is characterized in that: the weather strip of above-mentioned door leaf bottom is the hollow compound weather strip of sponge stick core that adds of P type.

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