CN207960400U - A kind of linkage lock anti-reflective bullet closed guard gate using Fluid pressure - Google Patents

A kind of linkage lock anti-reflective bullet closed guard gate using Fluid pressure Download PDF

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Publication number
CN207960400U
CN207960400U CN201820206645.4U CN201820206645U CN207960400U CN 207960400 U CN207960400 U CN 207960400U CN 201820206645 U CN201820206645 U CN 201820206645U CN 207960400 U CN207960400 U CN 207960400U
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double
cylinder
lock
acting pressure
fluid pressure
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张阳鑫
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Abstract

The utility model is related to a kind of civil air defense constructions and installations, the safeguards in defence engineering field, disclose a kind of linkage lock anti-reflective bullet closed guard gate using Fluid pressure, including doorframe, door leaf, the fluid-pressure system being arranged on door leaf and the tapered end for switch;Door leaf is connect with doorframe by hinge page, and fluid-pressure system includes pump, reversal valve, pipeline and multiple double acting pressure cylinders, and pump is connected to reversal valve, and reversal valve passes through pipeline connection double acting pressure cylinder;Tapered end is connected with double acting pressure cylinder, and tapered end includes lock body and the lock core of sliding, and doorframe is equipped with the lock box with lock core corresponding matching;It is provided with limiting slot on the lock core, the limited block being slidably matched with limiting slot is provided on lock body.Fluid-pressure system is capable of the pressure of stable for extended periods of time in the utility model, transmits pressure by fluid, operation is simpler, linkage is more reliable and more stable, there is no virtual displacement, and carry out the setting of synchronous interaction, so that multiple tapered ends is executed the synchronism unlocked and shut more preferable.Therefore, the utility model is worthy to be popularized.

Description

Linkage locking anti-rebound civil air defense door utilizing fluid pressure
Technical Field
The utility model relates to a protective apparatus in civil air defense engineering, national air defense engineering field, concretely relates to utilize fluid pressure's anti bounce-back civil air defense door of linkage shutting.
Background
The civil air defense project refers to an underground protective building which is independently built for guaranteeing personnel and material shelter, civil air defense command, medical aid and the like in wartime, and a basement which is built by combining ground buildings and can be used for air defense in wartime. The civil air defense door belongs to protective equipment, has the functions of preventing shock waves and biochemical weapons, and is used for the entrance and exit, the ventilation opening and other parts of civil air defense engineering.
In the prior art, a common civil air defense door is composed of main mechanisms such as a door leaf, a door frame, a hinge, a lock and the like, wherein the door leaf is connected with the door frame through the hinge, and the door leaf can rotate around the center of a hinge shaft of the hinge. The locking mechanism is composed of a turbine speed reducer, a screw rod and other link members, such as patent No. CN105807B, CN204703637U, CN205743490U, CN206801359U and the like. The connecting rod mechanism in the prior art is relatively complex, so that the difficulty of production, processing, installation, debugging, use and maintenance is high; meanwhile, the traditional civil air defense door adopts a multi-link mechanism for locking, so that the multi-link mechanism is easy to generate corrosion and rust after being used for a long time, so that the operation difficulty is high, the connecting rod is abraded, the virtual displacement is caused, and the like, and the problems are not beneficial to use; in addition, the multi-link mechanism is susceptible to damage when subjected to spring back forces, resulting in higher maintenance costs and even scrapping of the entire door.
In order to improve the use convenience of the civil air defense door, enhance the safety performance of the civil air defense door and prolong the service life of the civil air defense door, a more reasonable technical scheme needs to be provided to solve the technical problems existing at present.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides an utilize fluid pressure's anti bounce-back people's air defense door of linkage shutting aims at utilizing fluid pressure to cylinder or pneumatic cylinder effect, promotes the tapered end and realizes unblanking and close the lock to utilize hydrodynamics's pressure performance, realize many places cylinder or pneumatic cylinder simultaneous action, reach the purpose that many places tapered end was opened or was closed in step.
The utility model discloses the technical scheme who adopts does:
a linkage locking anti-rebound civil air defense door using fluid pressure comprises a door frame, a door leaf, a fluid pressure system arranged on the door leaf and a lock head used for opening and closing.
Specifically, the door leaf is connected with the door frame through a hinge, the fluid pressure system comprises a pump, a reversing valve, a pipeline and a plurality of double-acting pressure cylinders which synchronously operate, and the pump is communicated with the reversing valve. The reversing valve is communicated with the double-acting pressure cylinder through a pipeline; the double-acting pressure cylinder comprises a cylinder body and a piston rod, and the cylinder body is fixed on or in the door leaf through a cylinder seat; the lock head is matched and connected with the double-acting pressure cylinder and comprises a lock body and a sliding lock cylinder, and a lock box correspondingly matched with the lock cylinder is arranged on the door frame; the lock body is provided with a limiting block in sliding fit with the limiting groove.
The utility model provides enough pressure through the pump, so that the piston rod in the double-acting pressure cylinder generates axial movement to drive the lock core of the lock head to move, thereby realizing unlocking or locking; the reversing valve is used for changing the pressure direction in the double-acting pressure cylinder, switching the motion direction of the piston rod and realizing the change of the state of the lock head.
Furthermore, in order to facilitate flexible installation and increase the locking position of the door leaf, the arrangement schemes of the double-acting pressure cylinder and the lock head are various. One scheme is as follows: the double-acting pressure cylinder is transversely arranged, the piston rod moves transversely correspondingly, the lock head connected with the double-acting pressure cylinder is transversely arranged correspondingly, and the lock cylinder moves transversely correspondingly. The other scheme is as follows: the double-acting pressure cylinder is longitudinally arranged, the piston rod moves longitudinally correspondingly, the lock head connected with the double-acting pressure cylinder is longitudinally arranged correspondingly, and the lock cylinder moves longitudinally correspondingly. Or the first two schemes are combined and matched.
Furthermore, the connection and matching mode of the double-acting pressure cylinder and the lock head has multiple modes, wherein one mode is as follows: the lock core is connected with the piston rod through a shaft hole matching structure, and a fastening bolt is arranged at the joint for fastening. In the matching structure, a hole is formed in the lock cylinder, a shaft matched with the hole is arranged at the end of the piston rod, a screw hole communicated with the hole is formed in the lock cylinder, and a fastening bolt is located in the screw hole and tightly abutted to the shaft; or the end part of the lock cylinder is provided with a shaft, the piston rod is provided with a hole corresponding to the shaft, the piston rod is provided with a screw hole communicated with the hole, and the fastening bolt is positioned in the screw hole.
Furthermore, piston rods of two adjacent double-acting pressure cylinders arranged in the same direction are connected to a synchronous connecting rod, and the synchronous connecting rod is connected with the lock cylinder. The arrangement has the advantages that the lock head can synchronously act through the connecting rod, and the synchronism is good; meanwhile, the number of double-acting pressure cylinders can be saved, the configuration is prevented from being excessive, and the cost can be reduced.
Further, in order to achieve synchronous action, the double-acting pressure cylinder is arranged in various ways, including at least two ways as follows, one of which is: the double-acting pressure cylinders are communicated in sequence, from the first double-acting pressure cylinder, the upper cavity of the first double-acting pressure cylinder is communicated with the reversing valve, the upper cavity of the middle double-acting pressure cylinder is connected to the lower cavity of the previous double-acting pressure cylinder, and the lower cavity of the last double-acting pressure cylinder is communicated with the reversing valve. The arrangement enables the plurality of double-acting pressure cylinders to form a communicated and circulated pressure pipeline, the forward action and the reverse action are convenient to switch, the pressure transmission is obvious, and the linkage is strong.
The other mode is as follows: two groups of synchronous valves are arranged between the reversing valve and the double-acting pressure cylinder, one group of synchronous valves is connected to an upper cavity of the double-acting pressure cylinder, and the other group of synchronous valves is connected to a lower cavity of the double-acting pressure cylinder. When the arrangement is carried out, when the reversing valve switches the pressure output to the synchronous valve communicated with the upper cavity, piston rods in all the double-acting pressure cylinders are retracted; when the reversing valve switches the pressure output to the synchronizing valve communicating with the lower chamber, the piston rods in all the double acting pressure cylinders are extended. The double-acting pressure cylinders are good in synchronism, the double-acting pressure cylinders are not affected mutually, and even if part of the double-acting pressure cylinders are damaged, other double-acting pressure cylinders can still normally complete unlocking and locking after the damaged double-acting pressure cylinders are removed.
In the utility model, the pressure source can be air pressure or hydraulic pressure, so the pump can adopt a pneumatic pump, and the double-acting pressure cylinder is a cylinder; or the pump is a hydraulic pump, and the double-acting pressure cylinder is a hydraulic cylinder.
Furthermore, the pressure source can be controlled manually or automatically, when manual control is adopted, the pump is a manual pneumatic pump or a manual hydraulic pump, and an operating handle matched with the pump is arranged on the door leaf; when automatic control is adopted, the pump is an electric pneumatic pump or an electric hydraulic pump.
Still further, when the fluid pressure system set up the surface at the door leaf, need protect the pipeline, be equipped with protective cover outside the pipeline this moment, be provided with spacing reinforcement between protective cover and the door leaf.
Still further, in order to protect the pipeline and improve the aesthetic measure of door leaf, the door leaf inside be equipped with the mounting groove, fluid pressure system sets up in the mounting groove, the mounting groove seals through the apron, realizes fluid pressure system's hidden installation.
Furthermore, the contact surface of the lock cylinder and the lock box is an inclined surface, so that the lock cylinder can horizontally move the door leaf while extending into the lock box, the door leaf and the door frame are tightly pressed and sealed, the door leaf is closed more tightly, and virtual displacement cannot occur after the door leaf is closed.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses set up the multi-link system in fluid pressure system has replaced traditional people's air defense door, realized unblanking and closing the lock through fluid pressure system control tapered end, the problem that multi-link system linkage is unstable, the operation difficulty appears after having solved traditional people's air defense door long-term use like this, has virtual displacement, the utility model discloses well fluid pressure system can keep stable pressure for a long time, through fluid transmission pressure, operates more simply, and the linkage is more reliable and more stable, does not have virtual displacement.
2. The utility model discloses a fluid pressure system controls to the setting of synchronous linkage makes the synchronism that a plurality of tapered ends execution was unblanked and was locked better.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is an overall schematic view in embodiment 1.
Fig. 2 is a schematic sectional structure in a side view in embodiment 1.
Fig. 3 is a schematic view of the entire structure in embodiment 2.
Figure 4 is a schematic view of the connection of the double acting cylinder to the lock cylinder in embodiment 3.
Fig. 5 is a schematic diagram of the arrangement of the double acting pressure cylinder in embodiment 4.
Figure 6 is a functional schematic diagram of the double acting cylinder of figure 5.
Fig. 7 is a schematic diagram of the arrangement of the double acting pressure cylinder in embodiment 5.
Figure 8 is a functional schematic diagram of the double acting cylinder of figure 7.
Fig. 9 is a schematic view of the entire structure in embodiment 6.
Fig. 10 is a schematic cross-sectional view of fig. 9 from the side.
Fig. 11 is a schematic view showing the installation of the fluid pressure system inside the door in embodiment 6.
Fig. 12 is a schematic structural view of a protective cover plate in embodiment 6.
Fig. 13 is a schematic structural view of another protective cover plate in embodiment 6.
In the figure: 1-a door frame; 2-door leaf; 3-hinging; 4-a lock head; 401-a lock body; 402-a lock cylinder; 403-a limiting block; 404-a limit groove; 5-double-acting pressure cylinder; 501-cylinder base; 6-a pump; 7-operating a handle; 8-a synchronous connecting rod; 10-a lock box; 11-a pipeline; 12-a diverter valve; 13-reversing rocker lever; 14-a synchronizing valve; 15-a protective cover plate; 16-limiting reinforcement.
Detailed Description
The present invention will be further explained with reference to the drawings and the embodiments.
Example 1:
as shown in fig. 1 and 2, the embodiment discloses a linked locking anti-rebounding civil air defense door using fluid pressure, which comprises a door frame 1, a door leaf 2, a fluid pressure system arranged on the door leaf 2 and a lock head 4 for opening and closing.
The door frame 1 is fixed on the wall, the door leaf 2 is connected with the door frame 1 through a hinge 3, the fluid pressure system comprises a pump 6, a reversing valve 12, a pipeline and a plurality of double-acting pressure cylinders 5 which operate synchronously, and the pump 6 is communicated with the reversing valve 12. The reversing valve 12 is communicated with the double-acting pressure cylinder 5 through a pipeline; the double-acting pressure cylinder 5 comprises a cylinder body and a piston rod, and the cylinder body is fixed on the door leaf 2 or in the door leaf 2 through a cylinder seat 501; the lock head 4 is matched and connected with the double-acting pressure cylinder 5, the lock head 4 comprises a lock body 401 and a sliding lock cylinder 402, and the door frame 1 is provided with a lock box 10 correspondingly matched with the lock cylinder 402; the lock core 402 is provided with a limiting groove 404, and the lock body 401 is provided with a limiting block 403 in sliding fit with the limiting groove 404.
The reversing valve 12 is a slide valve, a reversing rocker 13 is arranged on the reversing valve 12, and the pressure output direction in the pipeline can be conveniently switched through the reversing rocker 13.
In this embodiment, the double acting pressure cylinder 5 is longitudinally arranged at the upper edge and the lower edge of the door leaf 2, the piston rod moves longitudinally correspondingly, the lock head 4 connected with the double acting pressure cylinder 5 is longitudinally arranged correspondingly, and the lock cylinder 402 moves longitudinally correspondingly.
The piston rods of two adjacent double-acting pressure cylinders 5 arranged in the same direction are connected to a synchronizing connecting rod 8 made of high-strength metal material, and the synchronizing connecting rod 8 is connected with the lock cylinder 402. The synchronization links 8 are bolted to the piston rods, while the synchronization links 8 are bolted to the lock cylinders 402, each synchronization link 8 being connected to five lock cylinders 402.
The arrangement has the advantages that the lock head 4 can synchronously act through the connecting rod, and the synchronism is good; meanwhile, the number of the double-acting pressure cylinders 5 can be saved, the configuration is prevented from being excessive, and the cost can be reduced.
The pressure source required by the scheme can be air pressure or hydraulic pressure, so that the pump 6 can adopt a pneumatic pump, and the double-acting pressure cylinder 5 is correspondingly an air cylinder; or the pump 6 adopts a hydraulic pump, and the double-acting pressure cylinder 5 is correspondingly a hydraulic cylinder.
In this embodiment, the pressure source can be controlled manually or automatically, when manual control is adopted, the pump 6 is a manual pneumatic pump or a manual hydraulic pump, and the door leaf 2 is provided with an operating handle 7 matched with the pump 6; when automatic control is adopted, the pump 6 is an electric pneumatic pump or an electric hydraulic pump.
In this embodiment, the fluid pressure system is disposed on the outer surface of the door leaf 2, in order to protect the pipeline, a protective cover plate 15 is disposed outside the pipeline, and a limiting reinforcement 16 is disposed between the protective cover plate 15 and the door leaf 2.
The protective cover plate 15 is a flat plate, and the limiting reinforcing part 16 is a square columnar plate matched with the flat plate; or the protective cover plate 15 is a C-shaped fastener, and the limiting reinforcing part 16 is an angle steel connecting part matched with the C-shaped fastener.
The contact surface of lock core 402 and lock box 10 is the inclined plane, and lock core 402 can the translation door leaf 2 when stretching into lock box 10 like this, realizes door leaf 2 and door frame 1's compressing tightly sealed, makes door leaf 2 close more tightly, can not appear virtual displacement after door leaf 2 closes.
Example 2:
as shown in fig. 3, the present embodiment discloses a linked locking anti-rebounding civil air defense door using fluid pressure, which includes a door frame 1, a door leaf 2 disposed in the door frame 1, a fluid pressure system disposed on the door leaf 2, and a lock head 4 for opening and closing.
The structure and connection relationship of the components in this embodiment are the same as those in embodiment 1, except that:
in this embodiment, the double acting pressure cylinder 5 is arranged horizontally, the piston rod moves horizontally correspondingly, the lock head 4 connected with the double acting pressure cylinder 5 is arranged horizontally correspondingly, and the lock cylinder 402 moves horizontally correspondingly. The left side and the right side of the door leaf 2 are respectively provided with two double-acting pressure cylinders 5, a reinforcing plate is arranged between the double-acting pressure cylinders 5 and the door leaf 2, and the double-acting pressure cylinders 5, the reinforcing plate and the door leaf 2 are fastened through bolts.
Alternatively, in the present embodiment, double acting cylinders 5 are additionally provided at the upper and lower edges of the door leaf 2, and the left and right double acting cylinders 5 are provided in the same manner as in embodiment 1. Thus, the two schemes are combined, matched and arranged, and a better locking effect can be achieved.
Example 3:
as shown in fig. 4, the present embodiment discloses a linked locking anti-rebounding civil air defense door using fluid pressure, which includes a door frame 1, a door leaf 2 disposed in the door frame 1, a fluid pressure system disposed on the door leaf 2, and a lock head 4 for opening and closing.
The structure and connection relationship of the components in this embodiment are the same as those in embodiment 1, except that:
in this embodiment, the lock cylinder 402 is connected to the piston rod through a shaft hole matching structure, and a fastening bolt is disposed at the joint for fastening. In the matching structure, a hole is formed in the lock cylinder 402, a shaft matched with the hole is arranged at the end of the piston rod, a screw hole communicated with the hole is formed in the lock cylinder 402, and a fastening bolt is located in the screw hole and tightly abutted to the shaft; or the end part of the lock cylinder 402 is provided with a shaft, the piston rod is provided with a hole corresponding to the shaft, the piston rod is provided with a screw hole communicated with the hole, and the fastening bolt is positioned in the screw hole.
Example 4:
as shown in fig. 5 and 6, the present embodiment discloses a linked locking anti-bounce civil air defense door using fluid pressure, which includes a door frame 1, a door leaf 2 disposed in the door frame 1, a fluid pressure system disposed on the door leaf 2, and a lock head 4 for opening and closing.
The structure and connection relationship of the components in this embodiment are the same as those in embodiment 1, except that:
in this embodiment, in order to realize the synchronous operation, the double-acting cylinder 5 is arranged as follows: the double-acting pressure cylinders 5 are communicated in sequence, from the first double-acting pressure cylinder 5, the upper cavity of the first double-acting pressure cylinder 5 is communicated with the reversing valve 12, the upper cavity of the middle double-acting pressure cylinder 5 is connected to the lower cavity of the previous double-acting pressure cylinder 5, and the lower cavity of the last double-acting pressure cylinder 5 is communicated with the reversing valve 12.
Example 5:
as shown in fig. 7 and 8, the present embodiment discloses a linked locking anti-bounce civil air defense door using fluid pressure, which includes a door frame 1, a door leaf 2 disposed in the door frame 1, a fluid pressure system disposed on the door leaf 2, and a lock head 4 for opening and closing.
The structure and connection relationship of the components in this embodiment are the same as those in embodiment 1, except that:
in the present embodiment, two sets of synchronization valves 14 are provided between the directional control valve 12 and the double acting cylinder 5, one set of synchronization valves 14 is connected to the upper chamber of the double acting cylinder 5, and the other set of synchronization valves 14 is connected to the lower chamber of the double acting cylinder 5. When the arrangement is carried out, when the reversing valve 12 switches the pressure output to the synchronous valve 14 communicated with the upper cavity, all the piston rods in the double-acting pressure cylinder 5 are retracted; when the directional valve 12 switches the pressure output to the synchronizing valve 14 communicating with the lower chamber, the piston rods in all of the double acting pressure cylinders 5 are extended.
On this basis, the person skilled in the art will understand that the number of sets of synchronizing valve settings may not be limited by the choice of different types of synchronizing valves.
Meanwhile, in order to achieve the synchronization of the respective double acting cylinders, the method may be implemented by, but not limited to, the method in embodiment 4 and embodiment 5, for example, a closed-loop synchronization system in which a position sensor is provided to sense and feed back the motion displacement of the double acting cylinders, or the like may be employed.
Example 6:
as shown in fig. 9 to 13, the present embodiment discloses a linkage locking anti-bounce civil air defense door using fluid pressure, which comprises a door frame 1, a door leaf 2 arranged in the door frame 1, a fluid pressure system arranged on the door leaf 2, and a lock head 4 for opening and closing.
The structure and connection relationship of the components in this embodiment are the same as those in embodiment 1, except that:
in this embodiment, in order to protect the pipeline to improve the pleasing to the eye degree of door leaf 2, 2 insides of door leaf be equipped with the mounting groove, fluid pressure system sets up in the mounting groove, the mounting groove seals through the apron, realizes fluid pressure system's hidden installation.
The present invention is not limited to the above-mentioned alternative embodiments, and various other products can be obtained by anyone under the teaching of the present invention. The above detailed description should not be taken as limiting the scope of the invention, which is defined in the following claims, and which can be used to interpret the claims.

Claims (10)

1. A linkage locking anti-rebound civil air defense door utilizing fluid pressure comprises a door frame (1), a door leaf (2), a fluid pressure system arranged on the door leaf (2) and a lock head (4) used for opening and closing; the method is characterized in that: the door leaf (2) is connected with the door frame (1) through a hinge (3), the fluid pressure system comprises a pump (6), a reversing valve (12), a pipeline and a plurality of synchronously operating double-acting pressure cylinders (5), and the pump (6) is communicated with the reversing valve (12); the reversing valve (12) is communicated with the double-acting pressure cylinder (5) through a pipeline; the double-acting pressure cylinder (5) comprises a cylinder body and a piston rod, and the cylinder body is fixed on the door leaf (2) or in the door leaf (2) through a cylinder seat (501); the lock head (4) is connected with the double-acting pressure cylinder (5) in a matched mode, the lock head (4) comprises a lock body (401) and a sliding lock cylinder (402), and a lock box (10) which is correspondingly matched with the lock cylinder (402) is arranged on the door frame (1); the lock is characterized in that a limiting groove (404) is formed in the lock cylinder (402), and a limiting block (403) in sliding fit with the limiting groove (404) is arranged on the lock body (401).
2. The interlocking latching anti-bounce civil air defense door using fluid pressure as claimed in claim 1, wherein: the double-acting pressure cylinder (5) is transversely arranged, the piston rod moves transversely correspondingly, the lock head (4) connected with the double-acting pressure cylinder (5) is transversely arranged correspondingly, and the lock cylinder (402) moves transversely correspondingly; or the double-acting pressure cylinder (5) is longitudinally arranged, the piston rod moves longitudinally correspondingly, the lock head (4) connected with the double-acting pressure cylinder (5) is longitudinally arranged correspondingly, and the lock cylinder (402) moves longitudinally correspondingly.
3. The interlocking latching anti-bounce civil air defense door using fluid pressure as claimed in claim 2, wherein: piston rods of two adjacent double-acting pressure cylinders (5) arranged in the same direction are connected to a synchronous connecting rod (8), and the synchronous connecting rod (8) is connected with the lock cylinder (402).
4. The interlocking latching anti-bounce civil air defense door using fluid pressure as claimed in claim 1, wherein: the lock cylinder (402) is connected with the piston rod through a shaft hole matching structure, and a fastening bolt is arranged at the joint for fastening.
5. The interlocking latching anti-bounce civil air defense door using fluid pressure as claimed in claim 1, wherein: the double-acting pressure cylinders (5) are communicated in sequence, from the first double-acting pressure cylinder (5), the upper cavity of the first double-acting pressure cylinder (5) is communicated with the reversing valve (12), the upper cavity of the middle double-acting pressure cylinder (5) is connected to the lower cavity of the previous double-acting pressure cylinder (5), and the lower cavity of the last double-acting pressure cylinder (5) is communicated with the reversing valve (12).
6. The interlocking latching anti-bounce civil air defense door using fluid pressure as claimed in claim 1, wherein: two groups of synchronous valves (14) are arranged between the reversing valve (12) and the double-acting pressure cylinder (5), one group of synchronous valves (14) are connected to an upper cavity of the double-acting pressure cylinder (5), and the other group of synchronous valves (14) are connected to a lower cavity of the double-acting pressure cylinder (5).
7. The interlocking latching anti-bounce civil air defense door using fluid pressure as claimed in claim 1, wherein: the pump (6) is a pneumatic pump, and the double-acting pressure cylinder (5) is a cylinder; or the pump (6) is a hydraulic pump, and the double-acting pressure cylinder (5) is a hydraulic cylinder.
8. The interlocking latching anti-bounce civil air defense door using fluid pressure as claimed in claim 7, wherein: the pump (6) is a manual pneumatic pump or a manual hydraulic pump, and the door leaf (2) is provided with an operating handle (7) matched with the pump (6);
or,
the pump (6) is an electric pneumatic pump or an electric hydraulic pump.
9. The interlocking latching anti-bounce civil air defense door using fluid pressure as claimed in claim 1, wherein: the fluid pressure system is arranged on the outer surface of the door leaf (2), a protective cover plate (15) is arranged outside the pipeline, and a limiting reinforcing part (16) is arranged between the protective cover plate (15) and the door leaf (2).
10. The interlocking latching anti-bounce civil air defense door using fluid pressure as claimed in claim 1, wherein: the door leaf (2) is internally provided with an installation groove, and the fluid pressure system is arranged in the installation groove.
CN201820206645.4U 2018-02-06 2018-02-06 A kind of linkage lock anti-reflective bullet closed guard gate using Fluid pressure Active CN207960400U (en)

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Application Number Priority Date Filing Date Title
CN201820206645.4U CN207960400U (en) 2018-02-06 2018-02-06 A kind of linkage lock anti-reflective bullet closed guard gate using Fluid pressure

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Application Number Priority Date Filing Date Title
CN201820206645.4U CN207960400U (en) 2018-02-06 2018-02-06 A kind of linkage lock anti-reflective bullet closed guard gate using Fluid pressure

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108222788A (en) * 2018-02-06 2018-06-29 张阳鑫 A kind of linkage lock anti-reflective bullet closed guard gate using Fluid pressure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108222788A (en) * 2018-02-06 2018-06-29 张阳鑫 A kind of linkage lock anti-reflective bullet closed guard gate using Fluid pressure

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