Unlocking device of electric inner swinging air cylinder

Abstract

The utility model relates to an electric inner swing cylinder unlocking device, which belongs to the technical field of inner swing doors and comprises a cylinder, a hinge seat fixedly connected to one end of a cylinder piston rod, a connecting piece hinged to the inner side of the hinge seat and a door body connecting rod fixedly connected to the back of the connecting piece. An unlocking assembly used for still conducting the unlocking step when an air source is lost is arranged on the outer side of the air cylinder, the unlocking assembly comprises a first connecting frame fixedly connected to the outer side of the air cylinder, four elastic telescopic pieces are fixedly connected to the bottom of the first connecting frame, and connecting blocks are fixedly connected to the bottom ends of the elastic telescopic pieces. According to the electric inner swing air cylinder unlocking device, when the air cylinder loses air source power, an operator can manually rotate a twisting cap of a threaded shaft to enable a fixing block to be inserted into a fixing inserting groove of a second connecting frame, and therefore fixed connection between a connecting assembly and the second connecting frame is achieved; and the piston rod of the air cylinder moves relatively by utilizing the elastic thrust of the elastic telescopic piece to drive the door body to be opened.

Description

Electric internal swing cylinder unlocking device Technical Field

[0001] This utility model relates to the field of inward swing door technology, specifically to an electric inward swing cylinder unlocking device. Background Technology

[0002] In modern industrial and civil facilities, electric internal swing cylinders are widely used in the automatic opening and closing control of various doors, such as automatic doors and protective doors for industrial equipment.

[0003] When the cylinder loses its air supply, the electric internal swing cylinder device lacks an effective emergency unlocking mechanism. The door may become locked due to mechanical jamming, gravity, or other external factors, making it impossible to open by conventional means. This not only affects the normal use of the facility but also adversely impacts personnel safety and equipment operation. Therefore, an electric internal swing cylinder unlocking device is proposed to solve the above problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides an electric internal swing cylinder unlocking device, which has advantages such as emergency unlocking function and solves the problem that the door will be locked when the existing cylinder loses its air source power.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An electric internal swing cylinder unlocking device includes a cylinder, a hinge seat fixedly connected to one end of the cylinder piston rod, a connecting piece hinged to the inner side of the hinge seat, and a door connecting rod fixedly connected to the back of the connecting piece. The outer side of the cylinder is provided with an unlocking component for still being able to perform the unlocking step when the air source is lost.

[0007] The unlocking component includes a first connecting frame fixedly connected to the outside of the cylinder. Four elastic telescopic members are fixedly connected to the bottom of the first connecting frame. A connecting block is fixedly connected to the bottom of the elastic telescopic member. A fixing rod is fixedly connected to the bottom of the connecting block. A connecting component is provided at the bottom of the fixing rod. A second connecting frame is fixedly connected to the outside of the cylinder piston rod.

[0008] Furthermore, the four elastic telescopic members are respectively arranged at the four corners of the bottom of the first connecting frame.

[0009] Furthermore, the connecting assembly includes a housing fixedly connected to the bottom end of the fixing rod. A threaded shaft is rotatably connected to the inner side of the housing, and a threaded block is threadedly connected to the outer side of the threaded shaft. Mounting shafts are fixedly connected to opposite sides of the threaded blocks on both the left and right sides. Mounting plates are fixedly connected to opposite ends of the mounting shafts on both the left and right sides, and fixing blocks are fixedly connected to opposite sides of the mounting plates on both the left and right sides.

[0010] Furthermore, the left and right side walls of the second connecting frame are provided with fixing slots that are compatible with the fixing blocks.

[0011] Furthermore, the threaded shaft on the left is rotatably connected to the inner left side wall of the corresponding housing, and the threaded shaft on the right is rotatably connected to the inner right side wall of the corresponding housing.

[0012] Furthermore, each of the opposite sidewalls of the left and right sides of the housing is provided with an extension hole adapted to the threaded shaft, and each of the opposite ends of the threaded shaft on the left and right sides is fixedly connected with a torsion cap.

[0013] Furthermore, there are two mounting shafts on both the left and right sides, with the two mounting shafts on the same side located above and below the threaded shaft, respectively.

[0014] Furthermore, the left side of the inner side of the left housing and the right side of the inner side of the right housing are both provided with through holes adapted to the mounting shaft. The end of the mounting shaft away from the threaded block passes through the corresponding through hole and is fixedly connected to the corresponding mounting plate.

[0015] Compared with the prior art, this utility model provides an electric internal swing cylinder unlocking device, which has the following features:

[0016] Beneficial effects:

[0017] When the cylinder loses its air supply power, the operator can manually rotate the screw cap of the threaded shaft to insert the fixing block into the fixing slot of the second connecting frame, thereby achieving a fixed connection between the connecting component and the second connecting frame. Then, the elastic thrust of the elastic telescopic component causes the cylinder piston rod to move relative to the door, thereby opening the door. Attached Figure Description

[0018] Figure 1 is a cross-sectional view of the structure of this utility model;

[0019] Figure 2 is a side view of the structure of this utility model;

[0020] Figure 3 is a perspective view of the first connecting frame and the elastic telescopic component in the structure of this utility model.

[0021] In the diagram: 1. Cylinder; 2. Hinge seat; 3. Connecting piece; 4. Door connecting rod; 5. First connecting frame; 6. Elastic telescopic component; 7. Connecting block; 8. Fixing rod; 9. Second connecting frame; 10. Housing; 11. Threaded shaft; 12. Threaded block; 13. Mounting shaft; 14. Mounting plate; 15. Fixing block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please refer to Figures 1 to 3. The electric internal swing cylinder unlocking device in this embodiment includes a cylinder 1, a hinge seat 2 fixedly connected to one end of the piston rod of the cylinder 1, a connecting piece 3 hinged to the inner side of the hinge seat 2, and a door connecting rod 4 fixedly connected to the back of the connecting piece 3. The outer side of the cylinder 1 is provided with an unlocking component for still being able to perform the unlocking step when the air source is lost.

[0024] Please refer to Figure 1. In this embodiment, the unlocking component includes a first connecting frame 5 fixedly connected to the outside of the cylinder 1. Four elastic telescopic members 6 are fixedly connected to the bottom of the first connecting frame 5. A connecting block 7 is fixedly connected to the bottom of the elastic telescopic member 6. A fixing rod 8 is fixedly connected to the bottom of the connecting block 7. A connecting component is provided at the bottom of the fixing rod 8. A second connecting frame 9 is fixedly connected to the outside of the piston rod of the cylinder 1.

[0025] Specifically, four elastic telescopic components 6 are respectively arranged at the four corners of the bottom of the first connecting frame 5.

[0026] It should be noted that this arrangement allows the connecting block 7 to remain relatively stable under stress, preventing tilting or shaking due to uneven stress, and ensuring the accuracy and stability of subsequent unlocking actions.

[0027] Specifically, the connecting assembly includes a housing 10 fixedly connected to the bottom end of the fixing rod 8. A threaded shaft 11 is rotatably connected to the inner side of the housing 10. A threaded block 12 is threadedly connected to the outer side of the threaded shaft 11. Mounting shafts 13 are fixedly connected to opposite sides of the threaded blocks 12 on both the left and right sides. Mounting plates 14 are fixedly connected to opposite ends of the mounting shafts 13 on both the left and right sides. Fixing blocks 15 are fixedly connected to opposite sides of the mounting plates 14 on both the left and right sides. Fixing slots that are compatible with fixing blocks 15 are provided on both the left and right side walls of the second connecting frame 9.

[0028] Specifically, the left threaded shaft 11 is rotatably connected to the inner left side wall of the corresponding housing 10, and the right threaded shaft 11 is rotatably connected to the inner right side wall of the corresponding housing 10.

[0029] Specifically, each of the opposite sidewalls of the left and right shells 10 is provided with an extension hole adapted to the threaded shaft 11, and each of the opposite ends of the threaded shaft 11 on the left and right sides is fixedly connected with a torsion cap.

[0030] It should be noted that the extension hole provides rotation space for the threaded shaft 11, and the design of the twist cap makes it convenient for operators to manually rotate the threaded shaft 11.

[0031] Specifically, there are two mounting shafts 13 on each side, and the two mounting shafts 13 on the same side and corresponding to each other are located above and below the threaded shaft 11, respectively.

[0032] It should be noted that this arrangement can enhance the connection strength between the mounting plate 14 and the threaded block 12, making the mounting plate 14 more stable during movement.

[0033] Specifically, the left side of the inner side of the left housing 10 and the right side of the inner side of the right housing 10 are provided with through holes that are adapted to the mounting shaft 13. The end of the mounting shaft 13 away from the threaded block 12 passes through the corresponding through hole and is fixedly connected to the corresponding mounting plate 14.

[0034] The working principle of the above embodiments is as follows:

[0035] When cylinder 1 is working normally and there is an air supply, the piston rod of cylinder 1 is in the normal extension and retraction position. It drives the door to open and close through the hinge seat 2, connecting piece 3 and door connecting rod 4. At this time, the unlocking component is idle and the second connecting frame 9 is not connected to the connecting component.

[0036] When cylinder 1 loses its air supply, the piston rod of cylinder 1 cannot extend or retract normally, thus preventing the door from opening properly. At this time, the unlocking assembly is needed to unlock the door. The operator manually rotates the torsion cap of the threaded shaft 11 to make the threaded shaft 11 rotate. Since the threaded shaft 11 is threadedly connected to the threaded block 12, according to the principle of thread transmission, the rotation of the threaded shaft 11 will drive the threaded block 12 to move along the axial direction of the threaded shaft 11. The movement of the threaded block 12 will drive the two mounting shafts 13 on the same side to move, and then drive the mounting plate 14 to move. The movement of the mounting plate 14 will cause the fixing block 15 to move closer to the second connecting frame 9. Continue to rotate the torsion cap until the fixing block 15 is accurately inserted into the fixing slot of the second connecting frame 9. At this time, the connecting assembly is fixedly connected to the second connecting frame 9. Then, the elastic thrust of the elastic telescopic member 6 will cause the piston rod of cylinder 1 to move relative to each other. The movement of the piston rod will drive the hinge seat 2, the connecting piece 3 and the door connecting rod 4 to move, thereby realizing the unlocking and opening action of the door.

[0037] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that can achieve its beneficial effects can be implemented.

[0038] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electric internal swing cylinder unlocking device, comprising a cylinder (1), a hinge seat (2) fixedly connected to one end of the piston rod of the cylinder (1), a connecting piece (3) hinged to the inner side of the hinge seat (2), and a door connecting rod (4) fixedly connected to the back of the connecting piece (3), characterized in that: The cylinder (1) is provided with an unlocking component on its outer side for still being able to unlock when the air source is lost; the unlocking component includes a first connecting frame (5) fixedly connected to the outer side of the cylinder (1), four elastic telescopic members (6) fixedly connected to the bottom of the first connecting frame (5), a connecting block (7) fixedly connected to the bottom of the elastic telescopic member (6), a fixing rod (8) fixedly connected to the bottom of the connecting block (7), a connecting component provided at the bottom of the fixing rod (8), and a second connecting frame (9) fixedly connected to the outer side of the piston rod of the cylinder (1).

2. The electric internal swing cylinder unlocking device according to claim 1, characterized in that: The four elastic telescopic members (6) are respectively arranged at the four corners of the bottom of the first connecting frame (5).

3. The electric internal swing cylinder unlocking device according to claim 1, characterized in that: The connecting assembly includes a housing (10) fixedly connected to the bottom end of the fixing rod (8). A threaded shaft (11) is rotatably connected to the inner side of the housing (10). A threaded block (12) is threadedly connected to the outer side of the threaded shaft (11). An installation shaft (13) is fixedly connected to the opposite side of the threaded blocks (12) on both the left and right sides. An installation plate (14) is fixedly connected to the opposite end of the installation shaft (13) on both the left and right sides. A fixing block (15) is fixedly connected to the opposite side of the installation plate (14) on both the left and right sides.

4. The electric internal swing cylinder unlocking device according to claim 1, characterized in that: The second connecting frame (9) has fixing slots on both the left and right side walls that are compatible with the fixing block (15).

5. The electric internal swing cylinder unlocking device according to claim 3, characterized in that: The threaded shaft (11) on the left is rotatably connected to the inner left side wall of the corresponding housing (10), and the threaded shaft (11) on the right is rotatably connected to the inner right side wall of the corresponding housing (10).

6. The electric internal swing cylinder unlocking device according to claim 3, characterized in that: The opposite sidewalls of the left and right sides of the housing (10) are provided with extension holes adapted to the threaded shaft (11), and the opposite ends of the threaded shaft (11) on the left and right sides are fixedly connected with torsion caps.

7. The electric internal swing cylinder unlocking device according to claim 3, characterized in that: The number of mounting shafts (13) on both the left and right sides is two, and the two mounting shafts (13) on the same side and corresponding to each other are located above and below the threaded shaft (11).

8. The electric internal swing cylinder unlocking device according to claim 3, characterized in that: The left side of the inner side of the left housing (10) and the right side of the inner side of the right housing (10) are both provided with through holes that are compatible with the mounting shaft (13). The end of the mounting shaft (13) away from the threaded block (12) passes through the corresponding through hole and is fixedly connected to the corresponding mounting plate (14).

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