Interlocking device of protective door of material elevator

Abstract

The utility model discloses an interlocking device of a material elevator protective door, which belongs to the technical field of interlocking devices of material elevator protective doors and comprises a lock shell and a lock head, a first door body is arranged on the left side of the lock shell, a second door body is arranged on the right side of the lock head, door frames are arranged on the outer sides of the first door body and the second door body, and a clamping groove is formed in the lock shell. When the lock head is inserted into the lock shell and the steel gasket is in contact with the line contact, the line of the elevator is closed, the protective door is in a closed state, the second door body is not normally closed, the line of the elevator is in an open-circuit state, and the elevator stops running; under the condition that the two doors are tightly closed, the elevator can operate, and the safety performance of the protective door is improved; and through the arrangement of the connecting block, the telescopic spring, the connecting groove and the groove, convenience is brought to opening and closing of the door body, when the circuit is closed, the lamp body illuminates to remind workers, and convenience is brought to circuit state judgment.

Description

Technical Field

[0001] The utility model belongs to the technical field of interlocking devices for material hoisting machine protection doors, and in particular relates to an interlocking device for material hoisting machine protection doors. Background Art

[0002] A movable protective door is set on the unloading platform between the construction floor and the material hoist to protect the lives of construction workers. The protective door is controlled by a travel switch and the electrical system of the material hoist. When the protective door is closed, the protective door frame pushes the travel switch to connect the circuit. The operator plugs in the latch of the door leaf, locks the protective door, and keeps the material hoist circuit closed, so that the hoist can operate normally. Due to the weak safety awareness of some construction site operators, in order to save time and effort, they directly put the travel switch in the closed state without closing the protective door, so that the hoist can operate in an unclosed environment on each floor, causing operators to habitually wait for the hoist in an unsafe area, resulting in many high-fall and mechanical injury incidents, causing great safety hazards.

[0003] At present, there are existing ones, and for this reason we propose an interlocking device for the protective door of a material hoist. Utility Model Content

[0004] The purpose of the utility model is to provide an interlocking device for the protective door of a material hoist, so as to solve the problem proposed in the above-mentioned background technology that the protective door is not closed, so that the hoist is operated in an unclosed environment on each floor, causing operators to habitually wait for the hoist in an unsafe area, resulting in many incidents of high falls and mechanical injuries, causing great safety hazards.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an interlocking device for a material hoist protective door, comprising a lock shell and a lock head, a No. 1 door body is provided on the left side of the lock shell, the lock shell is fixedly connected to the right side of the No. 1 door body, a No. 2 door body is provided on the right side of the lock head, the lock head is fixedly connected to the left side of the No. 2 door body, the lock head is movably connected to the lock shell, door frames are provided on the outsides of the No. 1 door body and the No. 2 door body, the No. 1 door body is fixedly connected to the left side of the inside of the door frame, the No. 2 door body is slidably connected to the right side of the inside of the door frame, a card slot is provided inside the lock shell, a circuit contact is provided on the left side of the card slot, a card block is provided on the left side of the lock head, a steel gasket is provided on the left side of the card block, and the card block is adapted to the card slot.

[0006] Preferably, the top and bottom of the card block are both provided with fixing blocks, the fixing blocks are fixedly connected to the top and bottom of the card block, and the fixing blocks are in contact with the inner wall of the card slot.

[0007] Preferably, the upper surface of the upper fixed block and the lower surface of the lower fixed block are both provided with connecting blocks, and the connecting blocks are movably connected to the upper surface of the upper fixed block and the lower surface of the lower fixed block. A connecting groove is provided at the top and bottom of the lock shell, and the connecting groove extends into the inside of the card slot, and the connecting block and the connecting groove are adapted.

[0008] Preferably, a groove is provided at the top and the bottom of the connecting block, a spring is provided inside the groove, one end of the spring is fixedly connected inside the groove, the other end of the spring is fixedly connected to the connecting block, and the connecting block is slidably connected inside the groove.

[0009] Preferably, a slide groove is provided at the top and bottom of the door frame, a slider is provided at the top and bottom of the second door body, the slider is adapted to the slide groove, and the second door body is slidably connected to the slide groove in the door frame through the slider.

[0010] Preferably, a lamp body is fixedly connected to the front side of the No. 1 door body, and the lamp body is electrically connected to the circuit contact.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. By inserting the lock into the lock shell, the set steel gasket contacts the line contact, the elevator line is closed, the protective door is in a closed state, the elevator line is in a pass state and operates normally, and when the No. 2 door body is not closed normally, the steel gasket is separated from the line contact, the elevator line is in a circuit-breaking state, and the elevator stops running. This device can only operate the elevator when the two doors are closed, thereby improving the safety performance of the protective door.

[0013] 2. The opening and closing of the No. 2 door body can be realized by setting the connecting block, spring expansion and contraction, connecting groove and groove, which brings convenience to the opening and closing of the door body. When the steel gasket contacts the line contact, power is supplied to the lamp body to illuminate it, and at the same time remind the staff that it is in the normal power supply state, which brings convenience to the judgment of the line status. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the closing structure of the second door body of the utility model;

[0016] Figure 3 This is a schematic diagram of the lock housing and lock head structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the connecting block, the fixing block and the groove structure of the utility model.

[0018] In the figure: 1. lock housing; 2. lock head; 3. door body No. 1; 4. door body No. 2; 5. door frame; 6. slot; 7. circuit contact; 8. block; 9. steel gasket; 10. fixing block; 11. connecting block; 12. connecting groove; 13. groove; 14. spring; 15. slide groove; 16. slider; 17. lamp body. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 The utility model provides a technical solution for the interlocking device of the material hoist protective door: it includes a lock shell 1 and a lock head 2, a No. 1 door body 3 is provided on the left side of the lock shell 1, the lock shell 1 is fixedly connected to the right side of the No. 1 door body 3, a No. 2 door body 4 is provided on the right side of the lock head 2, the lock head 2 is fixedly connected to the left side of the No. 2 door body 4, the lock head 2 is movably connected to the lock shell 1, a door frame 5 is provided on the outside of the No. 1 door body 3 and the No. 2 door body 4, the No. 1 door body 3 is fixedly connected to the left side of the inside of the door frame 5, the No. 2 door body 4 is slidably connected to the right side of the inside of the door frame 5, a card slot 6 is provided inside the lock shell 1, a circuit contact 7 is provided on the left side of the card slot 6, a card block 8 is provided on the left side of the lock head 2, a steel gasket 9 is provided on the left side of the card block 8, and the card block 8 is adapted to the card slot 6.

[0021] Specifically, a fixing block 10 is provided at the top and the bottom of the card block 8 . The fixing block 10 is fixedly connected to the top and the bottom of the card block 8 , and the fixing block 10 is in contact with the inner wall of the card slot 6 .

[0022] Specifically, a connecting block 11 is provided on the upper surface of the upper fixed block 10 and the lower surface of the lower fixed block 10. The connecting block 11 is movably connected to the upper surface of the upper fixed block 10 and the lower surface of the lower fixed block 10. A connecting groove 12 is provided at the top and bottom of the lock shell 1. The connecting groove 12 extends into the inside of the card slot 6, and the connecting block 11 and the connecting groove 12 are adapted.

[0023] Specifically, a groove 13 is provided at the top and bottom of the connecting block 11, a spring 14 is provided inside the groove 13, one end of the spring 14 is fixedly connected inside the groove 13, and the other end of the spring 14 is fixedly connected to the connecting block 11, and the connecting block 11 is slidably connected inside the groove 13.

[0024] Specifically, a slide groove 15 is provided at the top and bottom of the door frame 5, and a slider 16 is provided at the top and bottom of the second door body 4. The slider 16 is adapted to the slide groove 15, and the second door body 4 is slidably connected to the slide groove 15 in the door frame 5 through the slider 16.

[0025] Specifically, a lamp body 17 is fixedly connected to the front side of the No. 1 door body 3 , and the lamp body 17 is electrically connected to the circuit contact 7 .

[0026] In this embodiment, when the protective door is in use, the second door body 4 is pulled, the second door body 4 moves in the door frame 5, and the second door body 4 is opened. After opening, the construction worker enters the door, and then pushes the second door body 4 to insert the lock head 2 into the lock shell 1. The set steel gasket 9 contacts the line contact 7, the elevator line is closed, the protective door is in a closed state, the elevator line is in a passage state and operates normally. When the second door body 4 is not closed normally, the steel gasket 9 is separated from the line contact 7, the elevator line is in a circuit-breaking state, and the elevator stops running. This device can only be used when the two doors are closed. The hoist can only operate under these conditions, which improves the safety performance of the protective door. By pressing the connecting block 11, the spring 14 is extended and retracted, and enters the groove 13 from the connecting groove 12. At this time, the block 8 on the lock head 2 can be taken out from the groove 6 on the lock shell 1 to open the No. 2 door body 4. The No. 2 door body 4 can be closed by pushing the No. 2 door body 4 to the left, which facilitates the opening and closing of the door body. When the steel gasket 9 contacts the line contact 7, power is supplied to the lamp body 17, which can illuminate the lamp and remind the staff that the power supply is normal at this time, which facilitates the judgment of the line status.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An interlocking device for a protective door of a material hoist, comprising a lock housing (1) and a lock head (2), characterized in that: A No. 1 door body (3) is provided on the left side of the lock shell (1), the lock shell (1) is fixedly connected to the right side of the No. 1 door body (3), a No. 2 door body (4) is provided on the right side of the lock head (2), the lock head (2) is fixedly connected to the left side of the No. 2 door body (4), the lock head (2) is movably connected to the lock shell (1), door frames (5) are provided on the outside of the No. 1 door body (3) and the No. 2 door body (4), the No. 1 door body (3) is fixedly connected to the left side of the inside of the door frame (5), the No. 2 door body (4) is slidably connected to the right side of the inside of the door frame (5), a card slot (6) is provided inside the lock shell (1), a circuit contact (7) is provided on the left side of the inside of the card slot (6), a card block (8) is provided on the left side of the lock head (2), a steel gasket (9) is provided on the left side of the card block (8), and the card block (8) is adapted to the card slot (6).

2. The interlocking device for the protective door of a material hoist according to claim 1 is characterized in that: The top and bottom of the card block (8) are both provided with fixing blocks (10), the fixing blocks (10) are fixedly connected to the top and bottom of the card block (8), and the fixing blocks (10) are in contact with the inner wall of the card slot (6).

3. The interlocking device for the protective door of a material hoist according to claim 2 is characterized in that: The upper surface of the upper fixing block (10) and the lower surface of the lower fixing block (10) are both provided with connecting blocks (11), and the connecting blocks (11) are movably connected to the upper surface of the upper fixing block (10) and the lower surface of the lower fixing block (10). The top and bottom of the lock shell (1) are provided with a connecting groove (12), and the connecting groove (12) extends into the interior of the card slot (6). The connecting block (11) and the connecting groove (12) are adapted to each other.

4. The interlocking device for the protective door of a material hoist according to claim 3 is characterized in that: The top and bottom of the connection block (11) are both provided with a groove (13), a spring (14) is provided inside the groove (13), one end of the spring (14) is fixedly connected inside the groove (13), the other end of the spring (14) is fixedly connected to the connection block (11), and the connection block (11) is slidably connected inside the groove (13).

5. The interlocking device for the protective door of a material hoist according to claim 1 is characterized in that: The door frame (5) is provided with a slide groove (15) at the top and bottom, the second door body (4) is provided with a slider (16) at the top and bottom, the slider (16) is adapted to the slide groove (15), and the second door body (4) is slidably connected to the slide groove (15) in the door frame (5) via the slider (16).

6. The interlocking device for the protective door of a material hoist according to claim 1, characterized in that: The front side of the first door body (3) is fixedly connected with a lamp body (17), and the lamp body (17) is electrically connected to the circuit contact (7).

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