Hydraulic power unit with emergency system for operating security doors, watertight doors, gates, trapdoors and more.
Patent Information
- Application Number
- ES2025032233U
- Authority / Receiving Office
- ES · ES
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-11-09
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-11-09
Smart Images

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Description
Hydraulic power unit with emergency system for operating security doors, watertight doors, gates, trapdoors and others Background. The present invention relates to hydraulic power units for operating security doors, watertight doors, gates, hatches, and other similar devices, and more specifically to equipment that provides opening and closing movements for these doors, and also includes a system that allows for their operation in case of emergency. In an emergency, it is necessary to be able to open and / or close hydraulically operated security doors, watertight doors, gates, hatches, and other similar devices autonomously, without relying on electrical power. Currently, there are many hydraulically operated doors that open and close using hydraulic power equipment, but these lack the capability for remote opening or closing in an emergency without a power supply. A situation may arise where there is no electricity and the opening and / or closing of one or more doors is absolutely necessary; for example, imagine a fire in a cellblock with no power. In this scenario, it is impossible to approach the door and open it manually. Without an independent power system capable of remote opening, it will be impossible to open the door(s) needed for the evacuation of personnel and, consequently, ensure the survival of those inside the cells of the cellblock or prison.If a fire were to occur in a corridor containing cells with people inside, and there is no emergency opening / closing system with a hydraulic oil accumulator, the people who are imprisoned may suffer harm or even death as a result of the fire. Therefore, there is a need to provide a method of ensuring that in places where there are security doors, watertight doors, gates, trapdoors and other hydraulically operated doors, for example, prisons, dungeons, watertight compartments, engine rooms, the opening and / or closing of security doors, watertight doors, gates, trapdoors and other such doors can be carried out remotely and in emergency mode by means of a hydraulic power unit with an emergency hydraulic accumulator for its operation in case of urgent need and autonomously without depending on any other form of energy other than that provided by a hydraulic oil accumulator.This invention aims to solve the problem of doors and similar devices in places like prisons and cells where people are isolated and where an urgent evacuation may be necessary. In a scenario of power outage and fire, evacuation would not be possible without this hydraulic trigger safety system, which allows remote operation to open and / or close the aforementioned doors so that the affected area can be evacuated as quickly as possible. Explanation of the invention. The claim provides a hydraulic power unit with an emergency system and hydraulic oil accumulator for operating the opening and / or closing of security doors, such as those used in prisons and holding cells. The following description provides information for understanding this disclosure and should be interpreted as seeking protection beyond the scope of the claims. This description describes a method and means for opening and / or closing hydraulically operated security doors, watertight doors, gates, hatches, and other doors that need to be operated remotely (opening and / or closing) in an emergency and autonomously; that is, the hydraulic power unit itself has an energy accumulator in the form of a pressurized hydraulic oil accumulator for performing the opening and / or closing movement(s). The aforementioned hydraulic power unit will consist of basic components such as an electric motor, oil reservoir, hydraulic pump, solenoid valves, hydraulic accumulator, and an emergency operating system, for example, a two-way valve. It should be noted that this claim aims to protect the system itself, although countless variations within the concept are possible. For instance, this hydraulic power unit can operate one or more doors, so depending on the specific application, more or fewer components will be required. In this case, more or fewer directional solenoid valves will be needed to perform the opening and closing movements of the required door(s) in both normal and emergency modes.It is also possible to use different components that perform the same task. For example, we can use a hydraulic oil accumulator with a bladder, although other types, such as piston accumulators, are also available. Both perform the same function. Therefore, it is required that the protection cover the entire system or application, allowing for the use of multiple components with specific quantities and / or specifications in each case to achieve the intended action of the system. This invention covers an opening and closing system for security doors, watertight doors, gates, hatches, and the like, consisting of a hydraulic power unit with a hydraulic oil accumulator system for autonomous emergency movement; furthermore, the system comprises an oil reservoir that can vary in volume and internal type, an electric motor, a hydraulic pump coupled to the electric motor, a manual emergency pump, a filtering unit, a valve assembly (valves and solenoid valves), a hydraulic base block for valves, a pressurized hydraulic oil accumulator, a device for actuating the accumulated oil, a set of pressure gauges for taking pressure readings, rigid (tube) or flexible (hydraulic hoses) lines, and actuator(s) for opening and closing the door(s) (e.g., a hydraulic cylinder).All these elements can be of different types, adapting to each specific application and accommodating a multitude of needs, but in all cases the basic concept is the same. This is why emphasis is placed on the need to provide protection that covers the various aspects that may arise from each specific need. An upgrade kit can also be provided for existing hydraulic power equipment on the market that lacks an emergency accumulator system, enabling it to operate autonomously without mains power in urgent situations. This kit includes the necessary components for upgrading and adapting the equipment to meet current needs, ensuring operation under the most challenging conditions, such as fire emergencies without electricity. To achieve this, existing power equipment will be equipped with the necessary components for emergency operation, such as an oil accumulator (various types and capacities are available), an emergency release system (e.g., a two-way valve), directional valves, and so on. This invention addresses the need to safeguard the integrity and lives of people who are in sealed compartments or deprived of their liberty and who, due to various causes, experience an incident that prevents the normal and correct opening or closing of a door or doors, such as a fire or the absence of electricity, making it impossible for the hydraulic power equipment to function normally. For a better understanding of the nature and advantages of the invention, reference may be made to the following description taken in conjunction with the accompanying figures. It should be expressly understood, however, that each of the figures has been provided for the purpose of illustration and description only and is not intended to define the limits of embodiments of the present invention. Brief description of the drawings. Figure No. 1 represents a hydraulic power unit composed of elements that make it up and which are described below. 1A: represents an oil reservoir. This reservoir may be made of different materials and may vary in size and shape to suit each specific need. This reservoir will house the necessary components such as filters, a hydraulic pump, rigid or flexible hoses; it may also have an access cover, a filler cap, a drain valve, and a level gauge with a thermometer. IB: represents an electric motor and hydraulic pump assembly. The electric motor will drive the hydraulic pump and can vary in power, voltage, etc., to suit specific needs. The pump can be of different types and characteristics. 1 C: represents the filtration assembly. This may vary in number, location, and filtration capacity, for example, by varying the size of the screen. Optionally, it may include clogging indicators to alert you when the cartridges need replacing. 1D: represents the block for housing the solenoid valve(s). This block may consist of different configurations to accommodate more or fewer components. It may also include a safety valve and a pressure relief valve. This block will support the mounting of the solenoid valves necessary for the corresponding opening and closing operations of each door. 1E: represents a set of solenoid valves. These solenoid valves may vary in quantity and configuration depending on the specific needs of each case. They may also vary in size. 1F: represents an emergency manual pump. This may vary in type and / or size. It will be responsible for ensuring the movement of the doors in emergency mode and in the event of a failure in the primary system designed for emergency movement. 1G: represents a hydraulic oil accumulator. This accumulator is a metal container that holds pressurized oil. The accumulator(s) may vary in type and size depending on the specific needs of each application. 1H: represents a trigger valve. This valve is responsible for injecting pressurized hydraulic oil into the circuit to perform the desired opening and / or closing movements. Figure No. 2: A typical power equipment is represented, and side views and an aerial view are shown. Figure No. 3: An example of a hydraulically actuated watertight sliding door with hydraulic cylinders and power equipment with an emergency system and hydraulic oil accumulator is shown. 3A: hydraulic power equipment with emergency system. 3B: watertight and / or security sliding door. 3C: Hydraulic actuators (hydraulic cylinders). It is essential to emphasize the need to ensure that the requested protection covers the entire system, given the numerous variations in its composition. Each specific circumstance will necessitate the use of more or fewer elements, and these elements will have a specific application. A block diagram is shown depicting the different elements that make up the hydraulic power equipment with emergency system and accumulator, and the operating sequence. Detailed description. This document describes a method and means for performing opening and closing movements in both normal and emergency modes for security doors, airtight doors, and other similar doors, using a hydraulic system powered by a hydraulic power unit. This hydraulic power unit can be configured in various ways to meet the specific needs of each case or circumstance. It should be noted that many hydraulically operated doors currently exist, but they lack a safety system that allows for emergency operation under hazardous conditions, such as in enclosed spaces like cells, dungeons, or machine rooms.In the event of a fire and the loss of electricity, it would be impossible to open the doors remotely, seriously endangering the health and / or lives of both those being held captive or deprived of their liberty and those attempting to open the doors. A detailed description follows. 1A: represents an oil reservoir. This reservoir may be made of various materials, with carbon steel being the proposed material, although other materials such as stainless steel are also acceptable. Its size and shape may vary to suit specific needs. This reservoir will house necessary components such as filters, a hydraulic pump, a coupling to the electric motor, rigid or flexible hoses, and other elements not described in this document. It may also include an access cover, a filler cap, a drain valve, and a level gauge with a thermometer. This reservoir will contain the hydraulic oil required for the system's operation and will have sufficient capacity to hold both the oil in the circuit under normal operating conditions and the oil stored in the emergency hydraulic accumulator. This reservoir may be treated with a surface coating to prevent corrosion.It can be fixed to the floor by means of a pole or anchoring structure, although it can also be equipped with wheels, for example, in the case of portable applications. 1B: represents an electric motor and hydraulic pump assembly. The electric motor will drive the hydraulic pump and can vary in power, voltage, etc., to suit specific needs. For example, the electric motor can be single-phase 220V or three-phase 380V, and other configurations are possible. It will also vary depending on the power required for the specific application. The pump can be of different types and characteristics; for example, it can be a gear or piston pump, and it can be single or tandem. Its size can also vary and will always be determined in accordance with both the electric motor and the requirements to be met. This means that the type of pump will be selected for each specific case according to the needs of that particular situation.Various technical solutions can be used for coupling between the electric motor and the hydraulic pump, using, for example, a bell-type coupling or an elastic coupling. 1 C: represents the filtration assembly. This may vary in number, location, and filtration capacity, for example, by changing the screen size. Optionally, clogging indicators may be included to alert you when the cartridges need replacing. These filters can be mounted on the pump's suction line, return line, and pressure line. Depending on the requirements, one or more filters will be recommended, and the filter(s) will be selected for each specific application, using those that meet the necessary characteristics; these may vary, for example, in volume, micron rating, material, etc. These filters will ensure the correct operation of the circuit by trapping suspended particles in the oil and will perform the oil filtration function. They will be replaced periodically as needed. 1D: represents the block for housing the solenoid valve(s). This block can be made of various materials, such as carbon steel or aluminum, and can have different configurations to accommodate more or fewer components. In other words, depending on the number of solenoid valves or valves required for the system's operation, this block will vary in size to support them. Similarly, its dimensions will vary depending on the size of the valves it houses. It may also include a safety valve, a pressure relief valve, a port for installing a pressure gauge, etc. This block supports the mounting of the solenoid valves necessary for the opening and closing of each door or other component. 1 E: represents a set of solenoid valves. The number and configuration of these solenoid valves may vary depending on the specific needs of each application. Their size may also vary. For example, if a hydraulic power unit is used to open or close a single door, fewer solenoid valves will be required. The configuration of the sliding mechanism may also vary to perform specific functions, as may the voltage, for example, 220VDC, 24VDC, etc. The most common sizes are NG6 and NG10, although other sizes are possible, or they may be mounted without a base block. This set of valves is primarily responsible for performing the opening and closing operations in normal mode, without interfering with emergency operation. 1F: represents a manual emergency pump. This may vary in type and / or size. It will be responsible for ensuring the movement of the doors in emergency mode and in the event of a failure in the primary system intended for emergency operation. The emergency pump may be, for example, single-acting or double-acting and may vary in pumping capacity according to the specific needs of each case. It may be manufactured from different materials, for example, carbon steel, and may be installed in different locations within the tank or with an external tank. It will be operated using a lever arm. This pump is intended as a redundant system and is to be used if the system intended for emergency opening (hydraulic accumulator) fails to perform its intended function. In that case, oil will be manually pumped to continue the opening and / or closing of the door(s) in emergency mode. 1G: represents a hydraulic oil accumulator. This accumulator is a metal container, although it could be made of another material, such as carbon fiber, that holds pressurized oil. The accumulator(s) may vary in type and size depending on the specific needs of each application. For example, a bladder-type accumulator is planned. This accumulator is a cylindrical metal container with an internal bag called a bladder, which will hold nitrogen. In the other chamber of the accumulator, we will find pressurized hydraulic oil (at the pressure required in each case). The size of the accumulator will be sufficient to store the pressurized hydraulic oil needed to ensure the door(s) can move as many times as required. 1H: represents a trigger valve. This valve is responsible for injecting pressurized hydraulic oil into the circuit to perform the desired opening and / or closing movements. A two-way valve is specified. However, another type of component may be used for this purpose. The two-way valve may be manufactured from various materials such as carbon steel or stainless steel; it may be equipped with a system to prevent unintentional activation or unauthorized activation of the emergency valve. This valve may also be housed within a locked cabinet to ensure the aforementioned protection. Figure No. 2: A typical power equipment is represented, and side views and an aerial view are shown. Figure No. 3: An example of a hydraulically actuated watertight sliding door with hydraulic cylinders and power equipment with an emergency system and hydraulic oil accumulator is shown. 3A: Hydraulic power equipment with emergency system. 3B: watertight and / or security sliding door. 3C: Hydraulic actuators (hydraulic cylinders). Although the power unit and door appear adjacent in the image, the power unit can be installed in a different location to allow for remote operation. In this case, the drawing includes an electrical panel that can be offered as an optional accessory. A wide variety of upgrade kits are available to incorporate the emergency system into existing hydraulic power equipment that lacks it. The necessary components for retrofitting and enabling emergency operation can be installed as an add-on to existing hydraulic power equipment. It should be noted, and we want this to be extended to include, that in the case of hydraulic power equipment of any type intended to serve doors, gates, security doors, watertight doors and trapdoors, etc. and other elements that are moved by a hydraulic system and that, due to their type and use, must have an emergency system that ensures their operation in exceptional conditions without electricity and autonomously. As will be better understood by those skilled in the art, the present invention can be carried out in other specific forms within the scope of protection defined by the following claims. It should be noted, and we want this to be extended, that in the case of all hydraulic power equipment with an emergency system with a hydraulic accumulator to perform the opening and closing movement of security doors, watertight doors, gates, trapdoors and others of any type, coverage should also be considered to update those existing equipment that lacks the aforementioned emergency system for autonomous operation with a pressurized oil hydraulic accumulator.
Claims
1. Hydraulic power unit with emergency system and pressurized hydraulic oil accumulator for opening and / or closing security doors, watertight doors, gates, hatches, and other elements, comprising: - A reservoir to hold the system's hydraulic oil (1A). - An assembly consisting of an electric motor and coupled hydraulic pump (1B). - A set of filters to ensure proper filtration of the system's hydraulic oil (1C). - A hydraulic block for supporting solenoid valves (1D). - A set of solenoid valves (1E). - A manual hydraulic pump for emergency operation (1F). - One or more hydraulic accumulators configured to store pressurized hydraulic oil to operate the door in emergency mode (1G).- A trigger valve configured to introduce pressurized hydraulic oil stored in the accumulator(s) (1H) into the hydraulic drive circuit. - One or more hydraulic actuators connected to the hydraulic drive circuit to perform the opening and / or closing movement of the door(s), said hydraulic actuator(s) being actuated in emergency mode by the pressurized hydraulic oil from the accumulator(s).
2. An upgrade kit for existing hydraulic equipment lacking an emergency system to perform opening and / or closing movements of safety doors, watertight doors, gates, hatches, and the like, comprising: - One or more hydraulic accumulator(s) configured to store pressurized hydraulic oil to enable the door(s) to be actuated in emergency mode (1G).- A release valve connected to the hydraulic accumulator(s) and to the hydraulic circuit of the existing hydraulic power equipment, configured to allow the introduction into said circuit of the pressurized hydraulic oil stored in the accumulator(s).