A push-pull electric cage door

Abstract

The utility model provides a kind of push-pull electric cage door, the push-pull electric cage door includes fixed door and movable door being symmetrically arranged and being installed on cage frame;The side of fixed door away from the movable door is fixed on cage upright column by bolt;Corresponding cage frame on the top of movable door is provided with groove runway and a plurality of hanging wheels, and the side away from movable door of a plurality of hanging wheels is embedded into groove runway, and the bottom of movable door is provided with a plurality of stop rods, and a plurality of stop rods are slidingly connected in cage bottom plate groove;One side of groove runway is fixedly connected with screw base, and the side away from groove runway of screw base is connected with electric screw through pin shaft;The upper portion of the side close to fixed door of movable door is provided with pull section, and transmission mechanism is connected with electric screw.The utility model is through the specific structure design of electric cage door, can gather electric drive and high-precision positioning in an organic whole, so that electric cage door in actual operation, without personnel handle, credibility is high, and safety is good.

Description

Technical Field

[0001] This utility model belongs to the field of cage door design technology, and relates to a push-pull electric cage door. Background Technology

[0002] As the core equipment of the mine hoisting system, the safety door system of the mine cage is directly related to the safety of personnel and material transportation.

[0003] Traditional cage doors mostly adopt manual push-pull or simple mechanical drive designs, which have the following technical defects: inconvenient operation, manual doors require operators to operate at close range, which can easily cause safety accidents in the high dust and high humidity environment at the wellhead; poor drive reliability, existing electric doors mostly use chain or wire rope transmission, which are prone to jamming due to corrosion or wear, resulting in high maintenance frequency; insufficient positioning accuracy, the door positioning detection relies on mechanical contact plates, which are prone to deviation after long-term use, resulting in false signals; lack of double insurance, most designs rely only on electrical signal locking, which poses a risk of accidental door opening in the event of a sudden power outage.

[0004] In recent years, some improved cage doors have attempted to introduce linear motors or hydraulic drives, but significant problems still exist. Linear motors are sensitive to wellhead vibrations and have complex control circuits; hydraulic systems become less efficient in low-temperature environments and pose a risk of oil leakage; mechanical interlocking mechanisms mostly adopt rigid pin designs, requiring manual intervention and failing to achieve automatic linkage with the cage position.

[0005] Therefore, there is an urgent need to design and develop a push-pull electric cage door to overcome the shortcomings of existing technology and meet the needs of practical applications. Utility Model Content

[0006] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a push-pull electric cage door. In this utility model, through the specific structural design of the electric cage door, electric drive and high-precision positioning are integrated into one, so that the electric cage door does not require manual handling in actual operation, has high reliability, good safety, simple structure, and is suitable for industrial promotion and use.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] This utility model provides a push-pull electric cage door, which includes a fixed door and a movable door installed on the cage frame and symmetrically arranged.

[0009] The fixed door is bolted to the cage column on the side away from the movable door.

[0010] The top of the movable door is provided with a trough-shaped track and several hanging wheels on the cage frame. Several hanging wheels are embedded in the trough-shaped track on the side away from the movable door. Several stop bars are provided at the bottom of the movable door. The several stop bars are slidably connected in the groove of the bottom plate of the cage.

[0011] A screw base is fixedly connected to one side of the trough-shaped track, and an electric screw is connected to the side of the screw base away from the trough-shaped track via a pin.

[0012] The movable door is provided with a pull section on the upper part of the side near the fixed door. The pull section is used to connect to the transmission mechanism, and the transmission mechanism is connected to the electric screw to drive the movable door to open and close.

[0013] In this utility model, through the specific structural design of the electric cage door, electric drive and high-precision positioning can be integrated into one, so that the electric cage door does not require personnel to handle it in actual operation, has high reliability, good safety, simple structure, and is suitable for industrial promotion and use.

[0014] As a preferred technical solution of this utility model, the transmission mechanism includes a linkage assembly, which includes a first linkage and a second linkage; one end of the first linkage is fixedly connected to one side of the cage column with a fixed door by bolts, and the other end of the first linkage is connected to the pull section by a pin; one end of the second linkage is movably connected to the end of the first linkage near the cage column, and the other end of the second linkage is connected to the electric screw by a telescopic rod.

[0015] As a preferred technical solution of this utility model, the second connecting rod is telescopic.

[0016] As a preferred technical solution of this utility model, the push-pull electric cage door further includes an electrically connected button assembly and a control assembly. The button assembly is located on the outside of the well opening, and the control assembly is located on either side of the cage. The control assembly is connected to the electric screw via wired or wireless means to drive the opening and closing of the movable door.

[0017] As a preferred technical solution of this utility model, an explosion-proof battery box is provided on the top of the cage frame near the fixed door. The explosion-proof battery box is used to house the power battery and provide power to the electric screw.

[0018] As a preferred embodiment of the present invention, the movable door is provided with a first magnet at the top away from the fixed door; the movable door is provided with a second magnet at the top near the fixed door.

[0019] As a preferred technical solution of this utility model, the cage frame is provided with a position sensor and an open position sensor on the side facing the movable door; the closed position sensor is provided corresponding to the first magnet; and the open position sensor is provided corresponding to the second magnet.

[0020] As a preferred technical solution of this utility model, the cage frame is provided with a mechanical interlocking mechanism on the side near the top of the movable door.

[0021] As a preferred technical solution of this utility model, the mechanical interlocking mechanism includes a spring sleeve, a spring, a round-headed shaft, a safety hook, and a travel iron.

[0022] As a preferred technical solution of this utility model, the travel iron is fixedly connected to the wellhead frame beam.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] In this invention, through the specific structural design of the electric cage door, electric drive and high-precision positioning are integrated into one unit. The rotary motion is converted into linear motion of the door body through the composite transmission of screw and connecting rod, improving transmission stability. Dual magnet sensing and wireless control are used to achieve non-contact positioning detection and remote operation. A spring-safety hook linkage mechanism is designed to automatically lock the door body when the cage is not level, forming a mechanical-electric double safety. This makes the electric cage door highly reliable, safe, and simple in structure, without the need for manual operation, suitable for industrial promotion and use. Attached Figure Description

[0025] Figure 1 A schematic diagram of a push-pull electric cage door at the wellhead and in the closed state during cage operation, provided for a specific embodiment of this utility model.

[0026] Figure 2 A schematic diagram of a push-pull electric cage door in the open state at the wellhead, according to a specific embodiment of this utility model;

[0027] Figure 3 A schematic diagram of the side structure of a push-pull electric cage door provided for a specific embodiment of the present utility model;

[0028] Figure 4 This utility model Figure 1 A magnified view of point A in the middle;

[0029] Figure 5 This utility model Figure 2 A magnified view of the location at point B in the middle;

[0030] Among them, 1-fixed door; 2-movable door; 3-hanging wheel; 4-closed position sensor; 5-first magnet; 6-control component; 7-pull section; 8-stop lever; 9-mechanical interlocking mechanism; 10-first link; 11-second link; 12-electric screw; 13-second magnet; 14-open position sensor. Detailed Implementation

[0031] It should be understood that in the description of this utility model, the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0032] It should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0034] In one specific embodiment, the present invention provides a push-pull electric cage door, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the push-pull electric cage door includes a fixed door 1 and a movable door 2 installed on the cage frame and symmetrically arranged; the side of the fixed door 1 away from the movable door 2 is fixed to the cage column by bolts; the top of the movable door 2 is provided with a trough-shaped track and several hanging wheels 3 on the cage frame corresponding to the top of the movable door 2, and the several hanging wheels 3 are embedded in the trough-shaped track on the side away from the movable door 2; the bottom of the movable door 2 is provided with several stop bars 8, and the several stop bars 8 are slidably connected in the groove of the cage bottom plate; a screw base is fixedly connected to one side of the trough-shaped track, and an electric screw 12 is connected to the side of the screw base away from the trough-shaped track by a pin; a lever section 7 is provided on the upper part of the side of the movable door 2 near the fixed door 1, and the lever section 7 is used to connect to the transmission mechanism, and the transmission mechanism is connected to the electric screw 12 to drive the movable door 2 to open and close.

[0035] It should be noted that the electric cage door in this utility model consists of two doors: a movable door 2 and a fixed door 1. The fixed door 1 is fixed to the cage column with bolts. The movable door 2 is equipped with 3 sets of hanging wheels on the upper part and installed in the trough-shaped track. The lower part has a stop bar 8 that can slide left and right in the floor groove. The cage door is driven by an electric screw 12. The explosion-proof battery box is placed on the top of the cage. The base of the electric screw 12 is welded to the outside of the trough-shaped track and connected by a pin. An additional section is added to the right side of the movable door 2 as part of the pull section 7, which converts the electric cage door drive from arc motion to linear motion, improving transmission stability.

[0036] It should be noted that the number of the plurality of hanging wheels 3 in this utility model can be, for example, 1, 2, 3, 4, 5, 6, etc., and will not be exhaustively listed here. Those skilled in the art can make adaptive adjustments according to the actual situation.

[0037] It should be noted that the number of the plurality of levers 8 in this utility model can be, for example, 1, 2, 3, 4, 5, 6, etc., and will not be exhaustively listed here. Those skilled in the art can make adaptive adjustments according to the actual situation.

[0038] In one embodiment, the transmission mechanism includes a linkage assembly, which includes a first linkage 10 and a second linkage 11. One end of the first linkage 10 is fixedly connected to one side of the cage column with the fixed door 1 by bolts, and the other end of the first linkage 10 is connected to the pull section 7 by a pin. One end of the second linkage 11 is movably connected to the end of the first linkage 10 near the cage column, and the other end of the second linkage 11 is connected to the electric screw 12 by a telescopic rod.

[0039] In one embodiment, the second link 11 is telescopic.

[0040] It should be noted that the telescopic nature of the second connecting rod 11 in this utility model means that the length of the second connecting rod 11 can be adjusted to be longer or shorter, so as to facilitate connection with the electric screw 12. Specifically, it can also be adjusted according to the degree of opening of the cage door.

[0041] It should be noted that in this utility model, the telescopic rod of the electric screw 12 performs linear reciprocating motion, while the movable door 2 needs to slide horizontally within the grooved track. The first connecting rod 10 serves as a fixed fulcrum, converting the linear thrust of the telescopic rod into an arc swing. The second connecting rod 11 connects to the lever section 7 of the movable door 2, ultimately converting the arc swing into the horizontal linear motion of the movable door 2, ensuring smooth opening and closing of the door. Traditional chain / wire rope transmissions are prone to wear, while the linkage mechanism transmits thrust through a rigid connection, avoiding slippage or jamming. The driving force of the electric screw 12 is distributed to the connecting rod through the pin, reducing single-point force and extending service life. The second link 11 is designed with an adjustable length (such as a threaded rod or telescopic sleeve structure) to adapt to different cage sizes or deviations in the installation position of the electric screw 12, ensuring that the transmission mechanism is always in the best working state; the double link structure forms a four-bar linkage mechanism, which can better suppress lateral swaying compared to the single-bar design, prevent the door from deviating or derailing, and, together with the guide constraint of the grooved track and the stop bar 8, ensure that the movable door 2 moves strictly in a straight line.

[0042] In one embodiment, the push-pull electric cage door further includes an electrically connected button assembly and a control assembly 6. The button assembly is located on the outside of the well opening, and the control assembly 6 is located on either side of the cage. The control assembly 6 is connected to an electric screw 12 via wired or wireless means to drive the opening and closing of the movable door 2.

[0043] In one embodiment, an explosion-proof battery box is provided on the top of the cage near the fixed door 1. The explosion-proof battery box is used to house the power battery and provide power to the electric screw 12.

[0044] In one embodiment, the movable door 2 is provided with a first magnet 5 at its top away from the fixed door 1; the movable door 2 is provided with a second magnet 13 at its top near the fixed door 1.

[0045] In one embodiment, a position sensor 4 and an open position sensor 14 are respectively provided on the side of the cage frame facing the movable door 2; the closed position sensor 4 is provided corresponding to the first magnet 5; and the open position sensor 14 is provided corresponding to the second magnet 13.

[0046] In one embodiment, the cage frame is provided with a mechanical interlocking mechanism 9 on the side near the top of the movable door 2.

[0047] In one embodiment, the mechanical interlocking mechanism 9 includes a spring sleeve, a spring, a round-headed shaft, a safety hook, and a travel weight.

[0048] It should be noted that in this utility model, the spring sleeve provides a guide channel for the axial movement of the round-headed shaft, restricting its movement to only horizontal, preventing skew and jamming, and protecting the internal spring from dust or external force damage; the inner wall is smooth (can be chrome-plated or lined with PTFE) to reduce friction on the round-headed shaft, and is fixed to the cage column by bolts to ensure overall rigidity. In its normal state (when the cage is running): the spring pushes the round-headed shaft to the left to reset, causing the safety hook to lower and hook onto the cage door. During leveling, it is compressed and stores energy by the travel iron, providing power for automatic reset after disengagement. When the round-headed shaft is squeezed by the travel iron, it moves to the right, opening the safety hook; after disengaging from the travel iron, it moves to the left under the action of the spring. The round-headed design of the head ensures a smooth transition when in contact with the travel iron, reducing impact. During cage operation, the safety hook naturally droops under gravity, hooking onto the positioning iron at the lower left corner of the cage door to prevent accidental opening. During leveling, it is lifted by the round-headed shaft, disengaging from the positioning iron and allowing the cage door to open and close normally. The hook utilizes a lever principle with an offset fulcrum, ensuring that a small displacement of the round-headed shaft triggers a large-angle rotation. A rubber buffer pad is embedded in the hook opening to reduce impact noise with the positioning iron. The travel iron is fixed to the wellhead frame beam. When the cage reaches the leveling position, it compresses the round-headed shaft to the right, releasing the safety hook. Its installation height must precisely match the travel of the round-headed shaft to ensure reliable triggering each time leveling occurs.

[0049] In one implementation, the travel iron is fixedly connected to the wellhead frame beam.

[0050] It should be noted that the mechanical interlocking mechanism 9 in this utility model is used in the following ways: when the cage reaches the horizontal position of the upper and lower well openings, the round-headed shaft of the mechanical interlocking mechanism 9 is squeezed to the right by the travel iron, pushing open the safety hook and separating from the cage. The cage starts to run. After the round-headed shaft of the mechanical interlocking mechanism 9 is separated from the travel iron, it moves to the left under the action of the spring. The safety hook is lowered under its own weight and hooks the positioning iron at the lower left corner of the cage door, thus playing a safety role.

[0051] Example 1

[0052] This embodiment provides a push-pull electric cage door, wherein:

[0053] The push-pull electric cage door includes a fixed door 1 and a movable door 2 installed on the cage frame and symmetrically arranged. The side of the fixed door 1 away from the movable door 2 is fixed to the cage column by bolts. The top of the movable door 2 is provided with a trough-shaped track and several hanging wheels 3 on the cage frame. The several hanging wheels 3 are embedded in the trough-shaped track on the side away from the movable door 2. The bottom of the movable door 2 is provided with several stop bars 8, which are slidably connected to the groove in the bottom plate of the cage. A screw base is fixedly connected to one side of the trough-shaped track. The side of the screw base away from the trough-shaped track is connected to an electric screw 12 by a pin. The upper part of the movable door 2 near the fixed door 1 is provided with a lever section 7, which is used to connect to the transmission mechanism. The transmission mechanism is connected to the electric screw 12 to drive the movable door 2 to open and close.

[0054] The transmission mechanism includes a linkage assembly, which includes a first linkage 10 and a second linkage 11. One end of the first linkage 10 is fixedly connected to one side of the cage column with the fixed door 1 by bolts, and the other end of the first linkage 10 is connected to the pull section 7 by a pin. One end of the second linkage 11 is movably connected to the end of the first linkage 10 near the cage column, and the other end of the second linkage 11 is connected to the electric screw 12 by a telescopic rod. The second linkage 11 is telescopic.

[0055] The push-pull electric cage door also includes an electrically connected button assembly and a control assembly 6. The button assembly is located on the outside of the wellhead, and the control assembly 6 is located on either side of the cage. The control assembly 6 is connected to the electric screw 12 via wired or wireless means to drive the opening and closing of the movable door 2.

[0056] An explosion-proof battery box is installed on the top of the cage near the fixed door 1. The explosion-proof battery box is used to house the power battery and provide power to the electric screw 12.

[0057] The movable door 2 has a first magnet 5 at its top furthest from the fixed door 1; the movable door 2 has a second magnet 13 at its top closest to the fixed door 1. A position sensor 4 and an open position sensor 14 are respectively installed on the side of the cage frame facing the movable door 2; the closed position sensor 4 corresponds to the first magnet 5; the open position sensor 14 corresponds to the second magnet 13.

[0058] The cage frame is equipped with a mechanical interlocking mechanism 9 on the side near the top of the movable door 2. The mechanical interlocking mechanism 9 includes a spring sleeve, a spring, a round-headed shaft, a safety hook, and a travel iron. The travel iron is fixedly connected to the wellhead frame beam.

[0059] In summary, this utility model, through its specific structural design of the electric cage door, integrates electric drive and high-precision positioning. It converts rotary motion into linear motion of the door body via a screw-connecting rod composite transmission, improving transmission stability. The use of dual-magnet sensing and wireless control enables non-contact positioning detection and remote operation. A spring-safety hook linkage mechanism is designed to automatically lock the door when the cage is not level, forming a mechanical-electrical double safety system. This ensures that the electric cage door requires no manual operation, offering high reliability, good safety, and a simple structure, making it suitable for industrial-scale application.

[0060] The above description is only a specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model fall within the protection and disclosure scope of the present utility model.

Claims

1. A push-pull electric cage door, characterized in that, The push-pull electric cage door includes a fixed door and a movable door installed on the cage frame and arranged symmetrically. The fixed door is bolted to the cage column on the side away from the movable door. The top of the movable door is provided with a trough-shaped track and several hanging wheels on the cage frame. Several hanging wheels are embedded in the trough-shaped track on the side away from the movable door. Several stop bars are provided at the bottom of the movable door. The several stop bars are slidably connected in the groove of the bottom plate of the cage. A screw base is fixedly connected to one side of the trough-shaped track, and an electric screw is connected to the side of the screw base away from the trough-shaped track via a pin. The movable door is provided with a pull section on the upper part of the side near the fixed door. The pull section is used to connect to the transmission mechanism, and the transmission mechanism is connected to the electric screw to drive the movable door to open and close.

2. The push-pull electric cage door according to claim 1, characterized in that, The transmission mechanism includes a linkage assembly, which includes a first linkage and a second linkage. One end of the first connecting rod is fixedly connected to one side of the cage column with a fixed door by bolts, and the other end of the first connecting rod is connected to the pull section by a pin. One end of the second connecting rod is movably connected to the end of the first connecting rod near the cage column, and the other end of the second connecting rod is connected to the electric screw via a telescopic rod.

3. The push-pull electric cage door according to claim 2, characterized in that, The second link is telescopic.

4. The push-pull electric cage door according to claim 2, characterized in that, The push-pull electric cage door also includes an electrically connected button assembly and a control assembly. The button assembly is located on the outside of the wellhead, and the control assembly is located on either side of the cage. The control assembly is connected to the electric screw via wired or wireless means to drive the opening and closing of the movable door.

5. The push-pull electric cage door according to claim 2, characterized in that, An explosion-proof battery box is provided on the top of the cage near the fixed door. The explosion-proof battery box is used to house the power battery and provide power to the electric screw.

6. The push-pull electric cage door according to claim 1, characterized in that, The movable door has a first magnet located at its top, away from the fixed door; The movable door has a second magnet located at the top near the fixed door.

7. The push-pull electric cage door according to claim 6, characterized in that, The cage frame is equipped with a positioning sensor and an opening positioning sensor on the side facing the movable door. The closed position sensor is set corresponding to the first magnet; The open position sensor is set corresponding to the second magnet.

8. The push-pull electric cage door according to claim 1, characterized in that, The cage frame is equipped with a mechanical interlocking mechanism on the side near the top of the movable door.

9. The push-pull electric cage door according to claim 8, characterized in that, The mechanical interlocking mechanism includes a spring sleeve, a spring, a round-headed shaft, a safety hook, and a travel weight.

10. The push-pull electric cage door according to claim 9, characterized in that, The travel iron is fixedly connected to the wellhead frame beam.

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