Self-locking type interlayer door applied to construction elevator

Abstract

The self-locking type interlayer door applied to the construction elevator comprises a self-locking door body and a latch, the self-locking door body is movably arranged on a door frame, the latch is fixedly arranged on the door frame, the self-locking door body comprises a door plate and a self-locking device, and the self-locking device is arranged at the top of the door plate and connected with the latch. The self-locking device comprises a limiting plate, a locking buckle, a self-locking pin and a control rope, the limiting plate is fixed to the top of the door plate, the locking buckle is movably arranged on the limiting plate through the self-locking pin, when the door is locked, the locking buckle is clamped and fixed to the latch, and the control rope is connected with the self-locking pin. The self-locking device can be automatically locked with the latch when the self-locking door is closed, self-locking of the interlayer protective door is achieved, automatic unlocking is achieved when the protective door is opened, matched automatic unlocking and locking are conducted when the protective door is opened and closed, construction safety is guaranteed, and meanwhile using convenience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of elevator protective door, concretely relates to a self locking interfloor door for construction elevator. BACKGROUND

[0002] Construction hoist is set up for material transportation during building construction, and safety protective door, i.e. elevator safety door, is set up at each floor of the construction hoist as a protective measure for preventing personal injury in the construction site. The elevator safety door is usually manually locked, and the door lock is inconvenient to use, and it is difficult to ensure that the floor protective door is always locked when the elevator bridge box is in a non-stopping state, and there is a security risk that the floor protective door is not closed or not tightly closed, so safety accidents of the construction elevator occur frequently. Therefore, various self-locking devices applied to elevator doors or elevator doors with self-locking function appear, such as CN102730531A and CN104746957A, but the above-mentioned devices are generally applied to permanent elevators, and complex structures are usually adopted to ensure safety redundancy, which has the disadvantage of high cost for the construction hoist during construction, and cannot effectively adapt to the simple safety door on the construction hoist. The utility model provides a self-locking interfloor door applied to a construction elevator to solve the above-mentioned problems. SUMMARY

[0003] The utility model provides a self-locking interfloor door applied to a construction elevator, which realizes self-locking of the floor protective door of the construction elevator by using a simple structure, and ensures construction safety.

[0004] The utility model adopts the technical scheme that:

[0005] A self-locking interfloor door applied to a construction elevator, comprising a self-locking door and a door latch, the self-locking door is movably arranged on a door frame, and the door latch is fixedly arranged on the door frame, the self-locking door comprises a door plate and a self-locking device, the self-locking device is arranged at the top of the door plate and connected with the door latch.

[0006] The self-locking device comprises a limiting plate, a locking buckle, a self-locking pin and a control rope, the limiting plate is fixed at the top of the door plate, the locking buckle is movably arranged on the limiting plate through the self-locking pin, the locking buckle is clamped on the door latch when the door is locked, and the control rope is connected with the self-locking pin.

[0007] Further, the self-locking pin comprises a mounting pin and a self-locking spring, the mounting pin is arranged on the limiting plate, and the self-locking spring is arranged on the mounting pin and connected with the limiting plate.

[0008] Further, a baffle is arranged on the locking buckle, the baffle is arranged at the top of the locking buckle, and the baffle is in contact with the top of the limiting plate when the door is locked.

[0009] Furthermore, the limiting plate is provided with a clearance groove, and when the door is locked, the door latch is located in the clearance groove.

[0010] Furthermore, the locking buckle is a hook structure with a sloping surface at its front end.

[0011] Furthermore, the limiting plates are arranged in pairs, and the locking buckle is located between the two limiting plates.

[0012] Preferably, the limiting plate is a steel plate and the latch is a steel pipe.

[0013] The beneficial effects of this utility model are as follows:

[0014] The self-locking device can automatically lock with the door latch when the self-locking door is closed, realizing the self-locking of the inter-floor protective door. It can also automatically unlock when the protective door is opened, and automatically unlock and lock in coordination when the protective door is opened and closed, which not only ensures construction safety, but also improves the convenience of use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the self-locking device of this utility model;

[0017] Figure 3 This is a schematic diagram of the self-locking device of this utility model in its disassembled state.

[0018] Reference numerals: 1. Self-locking door; 11. Door panel; 12. Self-locking device; 121. Limiting plate; 122. Locking buckle; 123. Self-locking pin; 124. Control rope; 125. Baffle plate; 2. Door latch. Detailed Implementation

[0019] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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.

[0021] like Figure 1 As shown, a specific embodiment of a self-locking inter-floor door applied to a construction elevator includes a self-locking door 1 and a latch 2. The self-locking door 1 is movably mounted on the door frame, and the latch 2 is fixedly mounted on the door frame and located above the self-locking door 1. The self-locking door 1 includes a door panel 11 and a self-locking device 12. The self-locking device 12 is located on the top of the door panel 11 and is connected to the latch 2.

[0022] like Figure 1 , 2 As shown, the principle of this embodiment is as follows: the latch 2 is located above the self-locking door 1, corresponding to the self-locking device 12. When the self-locking door 1 is closed, the self-locking device 12 contacts the latch 2, and the inclined surface at the front end of the locking buckle 122 contacts the latch 2, pushing the locking buckle 122 upward. After the locking buckle 122 passes the latch 2, it resets under the action of the self-locking spring on the self-locking pin 123, locking the locking buckle 122 onto the latch 2. The hook structure of the locking buckle 122 is locked onto the latch 2, thus locking the door panel 11. Through the above working principle, the self-locking door 1 achieves self-locking when closed. When it is necessary to open the door, the control rope 124 moves, driving the self-locking pin 123 to rotate, which in turn drives the locking buckle 122 to swing upward and disengage from the latch 2. After the two disengage, the door panel 11 can be opened outward. When the door is opened, the control rope 124 wrapped around the self-locking pin 123 is pulled down, which causes the self-locking pin 123 to compress the self-locking spring and rotate around the axis, thereby causing the locking buckle 122 to swing upward.

[0023] like Figure 1 , 2 As shown in Figure 3, the self-locking device 12 includes a limiting plate 121, a locking buckle 122, a self-locking pin 123, and a control rope 124. The limiting plate 121 is fixed to the top of the door panel 11. The locking buckle 122 is movably mounted on the limiting plate 121 through the self-locking pin 123. When the door is locked, the locking buckle 122 is secured to the door latch 2. The control rope 124 is connected to the self-locking pin 123.

[0024] Furthermore, the self-locking pin 123 includes a mounting pin and a self-locking spring. The mounting pin is located on the limiting plate 121 and rotates on the limiting plate 121 when driven by an external force. The self-locking spring is located on the mounting pin and connected to the limiting plate 121. The function of the self-locking spring is to restrict the locking buckle 122 in the free state so that it tends to move downward. When the door is closed, the locking buckle 122 and the door latch 2 can always be locked. The self-locking spring and the baffle 125 work together to lock the locking buckle 122 and prevent the defect of unusable due to excessive movement.

[0025] Furthermore, the lower end of the control rope 124 is connected to the lock handle. When the door is opened and the lock is turned, the control rope 124 can be pulled down, thereby unlocking the self-locking device 12.

[0026] Furthermore, the locking buckle 122 is provided with a baffle 125, which is located on the top of the locking buckle 122. When the door is locked, the baffle 125 contacts the top of the limiting plate 121.

[0027] Furthermore, the limiting plate 121 is provided with a clearance groove, and when the door is locked, the door latch 2 is located in the clearance groove.

[0028] Furthermore, the locking buckle 122 is a hook structure with a ramp at its front end. After the door is closed, the locking buckle 122 contacts the door latch 2, and the door latch 2 pushes the locking buckle 122 along the ramp to lift and lock, thereby achieving automatic locking.

[0029] Furthermore, the limiting plates 121 are arranged in pairs, and the locking buckle 122 is located between the two limiting plates 121.

[0030] Preferably, the limiting plate 121 is a steel plate, the latch 2 is a steel pipe, and the self-locking spring is a torsion spring.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A self-locking landing door for use in construction elevators, characterized in that: It includes a self-locking door (1) and a door latch (2). The self-locking door (1) is movably mounted on the door frame, and the door latch (2) is fixedly mounted on the door frame. The self-locking door (1) includes a door panel (11) and a self-locking device (12). The self-locking device (12) is located on the top of the door panel (11) and is connected to the door latch (2). The self-locking device (12) includes a limiting plate (121), a locking buckle (122), a self-locking pin (123), and a control rope (124). The limiting plate (121) is fixed to the top of the door panel (11). The locking buckle (122) is movably mounted on the limiting plate (121) through the self-locking pin (123). When the door is locked, the locking buckle (122) is secured to the door latch (2). The control rope (124) is connected to the self-locking pin (123).

2. A self-locking landing door for construction elevators according to claim 1, characterized in that: The self-locking pin (123) includes an mounting pin and a self-locking spring. The mounting pin is located on the limiting plate (121), and the self-locking spring is located on the mounting pin and connected to the limiting plate (121).

3. A self-locking landing door for construction elevators according to claim 2, characterized in that: The locking buckle (122) is provided with a baffle (125), which is located on the top of the locking buckle (122). When the door is locked, the baffle (125) contacts the top of the limiting plate (121).

4. A self-locking landing door for construction elevators according to claim 1, characterized in that: The limiting plate (121) is provided with a clearance groove. When the door is locked, the door latch (2) is located in the clearance groove.

5. A self-locking landing door for construction elevators according to claim 1, characterized in that: The locking buckle (122) is a hook structure with a sloping surface at its front end.

6. A self-locking landing door for a construction elevator according to claim 1, characterized in that: The limiting plates (121) are arranged in pairs, and the locking buckle (122) is located between the two limiting plates (121).

7. A self-locking landing door for construction elevators according to claim 1, characterized in that: The limiting plate (121) is a steel plate, and the latch (2) is a steel pipe.

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