Electric crank device of civil air defense door

Abstract

The utility model belongs to the technical field of civil air defense doors, and discloses an electric crank device of a civil air defense door, which comprises an electric impact mechanism, a square output head of the electric impact mechanism is sleeved with a sleeve, one end of the sleeve is provided with a first square hole matched with the square output head, and the other end of the sleeve is provided with a second square hole matched with the square head of the civil air defense door in size; a circle of annular groove is formed in the sleeve, a limiting hole is formed in the sleeve in a penetrating mode, the limiting hole penetrates through the annular groove and the first square hole, a through hole is formed in the output square head of the electric impact mechanism, the plug pin penetrates through the first square hole and the through hole, an anti-disengaging clamping ring is installed on the annular groove, and the two ends of the plug pin abut against the inner side of the anti-disengaging clamping ring. According to the electric crank device of the civil air defense door, torque needed by operation is output through the electric impact mechanism, the physical burden of manual operation of the civil air defense door is reduced, and the opening and closing efficiency of the civil air defense door is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of civil air defense doors, and in particular relates to an electric crank device for civil air defense doors. Background Art

[0002] The BGFM65 series of civil air defense doors, widely used in underground spaces, currently rely on manual cranking for lifting, locking, and limiting operations. Opening or closing a door requires approximately 200 cranking cycles, with a manual locking force of 250N, making the entire process time-consuming and labor-intensive.

[0003] At present, the lifting, locking and limiting operations of civil air defense doors are all done manually. The entire process requires great operating force and takes a long time. It takes a long time to open and close the civil air defense doors during debugging and use. Utility Model Content

[0004] The present invention aims to solve the above technical problems at least to a certain extent. To this end, the present invention aims to provide an electric crank handle device for a civil air defense door.

[0005] The technical solution adopted by this utility model is:

[0006] An electric crank device for a civil air defense door includes an electric impact mechanism, wherein a sleeve is provided on the output square head of the electric impact mechanism, a first square hole matching the output square head is provided on one end of the sleeve, and a second square hole matching the size of the square head of the civil air defense door is provided on the other end; a circle of annular groove is provided on the sleeve, and a limiting hole is provided through the sleeve, and the limiting hole is arranged through the annular groove and the first square hole; a through hole is provided on the output square head of the electric impact mechanism, and a pin is arranged through the first square hole and the through hole; an anti-slip ring is installed on the annular groove, and both ends of the pin abut against the inner side of the anti-slip ring.

[0007] Preferably, the sleeve is made of a vibration-damping metal material. The sleeve is provided with a mark indicating the direction of rotation.

[0008] Preferably, the electric impact mechanism is detachably connected to the battery, and is provided with a torque switching switch, a torque gear position display indicator light, a stepless speed change switch and a forward and reverse switching lever.

[0009] The beneficial effects of the utility model are:

[0010] The utility model provides an electric crank handle device for a civil air defense door, which outputs the torque required for operation through an electric impact mechanism, reduces the physical burden of manual operation of the civil air defense door, improves the efficiency of opening and closing the civil air defense door, shortens the operation time of opening or closing the civil air defense door, and reduces the labor intensity of manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the electric crank handle device for civil air defense door of the present invention.

[0012] Figure 2 It is a partial structural sectional view of the electric crank handle device for civil air defense door of the utility model.

[0013] Figure 3 It is a schematic diagram of the sleeve of the utility model.

[0014] In the figure: 1-electric impact mechanism; 2-output square head; 3-sleeve; 4-first square hole; 5-second square hole; 6-annular groove; 7-limiting hole; 8-latch pin; 9-anti-drop ring; 10-mark; 11-battery; 12-torque switching switch; 13-torque gear display indicator; 14-stepless speed switch; 15-forward and reverse switching lever. DETAILED DESCRIPTION

[0015] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention and are not to be construed as limiting the present invention. The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in a variety of different configurations.

[0016] In the present invention, unless otherwise clearly specified and limited, terms such as "installed", "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two components.

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0018] like Figure 1 、 Figure 2 and Figure 3As shown, an electric crank device for a civil defense door in this embodiment includes an electric impact mechanism 1, and a sleeve 3 is sleeved on the output square head 2 of the electric impact mechanism 1, and a first square hole 4 is provided on one end of the sleeve 3 and a second square hole 5 is provided on the other end; a circle of annular groove 6 is provided on the sleeve 3, and a limiting hole 7 is penetrated through the sleeve 3, and the limiting hole 7 is set through the annular groove 6 and the first square hole 4; a through hole is provided on the output square head of the electric impact mechanism 1, and a latch 8 passes through the first square hole 4 and the through hole, and an anti-falling clamp 9 is installed on the annular groove 6, and the two ends of the latch 8 abut against the inner side of the anti-falling clamp 9; the output square head 2 of the electric impact mechanism 1 matches the first square hole 4, and the latch 8 is inserted into the sleeve 3 after the output square head 2 is connected to the sleeve 3 to prevent the sleeve 3 from falling off; after the latch 8 is inserted, the anti-falling clamp 9 is inserted into the annular groove 6 to prevent the latch 8 from falling off.

[0019] Sleeve 3 is designed to be larger at the front and narrower at the back, with a total length of 53mm. This ensures that the operator of the electric crank device for civil air defense doors has ample clearance relative to the door when in use. A marking 10 indicating the direction of rotation of the electric impact mechanism 1 is provided on sleeve 3. The first square hole 4 measures 12.9mm by 12.9mm and is designed to mate with the output square connector 2 of the electric impact mechanism 1. The second square hole 5 measures 20mm by 20mm to match the square connector dimensions of the lifting, locking, and limit operating mechanisms of the civil air defense door.

[0020] The sleeve 3 is made of vibration-damping metal material to reduce the impact on the lifting, locking and limiting mechanisms of the civil air defense door.

[0021] The electric impact mechanism 1 is detachably connected to the battery 11 and is equipped with a torque selector switch 12, a torque gear indicator 13, a continuously variable speed switch 14, and a forward / reverse selector lever 15. Powered by the battery 11, the electric impact mechanism 1 utilizes a high-speed rotating hammer to transmit impact force to the sleeve 3, thereby increasing the torque required to open and close the door. This addresses the issues of high torque, high reaction force, and unstable grip experienced by the operator during the opening and closing of civil air defense doors. The electric impact mechanism 1 provides two maximum torque output levels of 210 Nm and 298 Nm, which are switched via the torque selector switch 12. Under normal circumstances, the low torque level meets the torque requirements for opening and closing civil air defense doors; the high torque level is used in older lines where the opening and closing mechanism is corroded or stuck. After switching the torque level, the torque gear indicator 13 displays the current torque level. When operating the electric impact mechanism 1, the operator presses the stepless speed change switch 14, and the pressing stroke determines the output torque and output speed; the forward and reverse switching lever 15 is used to switch the rotation direction of the electric impact mechanism 1 to realize the lifting, locking and limiting of the civil defense door.

[0022] The present invention is not limited to the above-mentioned optional implementation methods. Anyone can derive various other forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, any technical solution that falls within the scope defined by the claims of the present invention shall fall within the scope of protection of the present invention.

Claims

1. An electric crank handle device for a civil air defense door, characterized in that: The invention comprises an electric impact mechanism (1), wherein a sleeve (3) is sleeved on an output square head (2) of the electric impact mechanism (1), a first square hole (4) matching the output square head (2) is provided on one end of the sleeve (3), and a second square hole (5) matching the size of the square head of the civil air defense door is provided on the other end; a circle of annular groove (6) is provided on the sleeve (3), a limiting hole (7) is provided through the sleeve (3), the limiting hole (7) passes through the annular groove (6) and the first square hole (4), a through hole is provided on the output square head of the electric impact mechanism (1), a latch (8) passes through the first square hole (4) and the through hole, an anti-slip ring (9) is installed on the annular groove (6), and both ends of the latch (8) abut against the inner side of the anti-slip ring (9).

2. The electric crank handle device for civil air defense door according to claim 1, characterized in that: The sleeve (3) is made of a vibration-damping metal material.

3. The electric crank handle device for civil air defense door according to claim 1, characterized in that: The electric impact mechanism (1) is detachably connected to the battery (11). The electric impact mechanism (1) is provided with a torque switching switch (12), a torque gear position display indicator light (13), a stepless speed change switch (14) and a forward / reverse switching lever (15).

4. The electric crank handle device for a civil air defense door according to claim 1, characterized in that: The sleeve (3) is provided with a mark (10) indicating the direction of rotation.

5. The electric crank handle device for civil air defense door according to claim 1, characterized in that: The length of the sleeve (3) is 53 mm, the size of the first square hole (4) is 12.9 mm*12.9 mm, and the size of the second square hole (5) is 20 mm*20 mm.

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