Protective safety device for elevator installation

Abstract

The utility model relates to the technical field of elevator safety protection, and discloses an elevator installation protection safety device which comprises a protective fence body, an extension fence is arranged on the inner side of the rear surface of the protective fence body, and sliding grooves are formed in the two ends of the inner side of the protective fence body correspondingly; i-shaped sliding blocks matched with the sliding grooves are symmetrically and fixedly mounted at the two ends of the extension fence. The extension fence is additionally arranged on the inner side of the protective fence body, an inverted-V-shaped connecting arm structure is arranged at the bottom of the extension fence, and when a hand wheel is used for driving a positive and negative tooth lead screw on the inner side of the protective fence body to rotate, two movable blocks can be driven to horizontally move relative to each other, so that two connecting arms deform; and the extension fence is pushed out upwards from the inner side of the protective fence body under the action of a concave seat, so that the protective height of the protective fence body can be adjusted by the device, the protective requirements of different construction environments are met, and the applicability is enhanced.

Description

Technical Field

[0001] This application relates to the field of elevator safety protection technologies, and in particular, to an elevator installation protection safety device. Background Art

[0002] An elevator refers to a permanent transportation device that serves several specific floors in a building, and its car moves on at least two rigid tracks perpendicular to the horizontal plane or with an inclination angle less than 15° to the plumb line. It is an indispensable tool for going up and down stairs in high-rise buildings;

[0003] Common elevator installation protection safety devices mainly use the form of safety protection fences to protect elevator shaft openings. The height of existing safety protection fences is fixed and cannot meet the requirements of different elevator shaft heights and construction stages. When the height of the shaft opening exceeds the height of the protection fence, the protection effect will be greatly reduced, posing a safety hazard. Therefore, we urgently need to provide an elevator installation protection safety device.

[0004] The above information disclosed in this background art is only used to increase the understanding of the background art of this application. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Utility Model Content

[0005] In order to solve the problems that the height of the safety protection fence is fixed and cannot meet the requirements of different elevator shaft heights and construction stages, when the height of the shaft opening exceeds the height of the protection fence, the protection effect will be greatly reduced, posing a safety hazard, this application provides an elevator installation protection safety device.

[0006] An elevator installation protection safety device provided by this application adopts the following technical solution:

[0007] An elevator installation protection safety device includes a protection fence body. An extension fence is provided inside the rear surface of the protection fence body. Chutes are opened at both inner ends of the protection fence body. I-shaped sliders adapted to the chutes are symmetrically and fixedly installed at both ends of the extension fence. The extension fence is slidably connected to the inside of the chutes through the I-shaped sliders. A concave seat is fixedly connected to the bottom of the extension fence. A handwheel is installed at the bottom end of the side of the protection fence body. The inside of the handwheel penetrates the protection fence body and a positive and negative thread screw rod is fixedly provided. The other end of the positive and negative thread screw rod is rotatably connected to the inside of the protection fence body, and two movable blocks are threadedly connected to both ends of the surface of the positive and negative thread screw rod. Two fixing plates are fixedly connected to the upper ends of the two movable blocks. Connecting arms are rotatably connected to the inner surfaces of two groups of two fixing plates. The upper ends of the connecting arms are rotatably connected to the inside of the concave seat.

[0008] Preferably, the two connecting arms are arranged in an inverted V shape at the bottom of the extension bar, a convex block is fixedly connected to the bottom of the guardrail body, and the bottoms of the two movable blocks are slidably connected to the surface of the convex block.

[0009] Preferably, two mounting blocks are uniformly and fixedly connected to the side of the guardrail body, and positioning holes are formed on the surfaces of the two mounting blocks.

[0010] Preferably, two connecting plates and four fixing blocks are uniformly and fixedly connected to the side of one end of the guardrail body away from the mounting block. The four fixing blocks are divided into two groups, and the two groups of fixing blocks are respectively arranged at the bottom of the connecting plates. An activity insertion rod penetrates through the middle of the two connecting plates, and a handle is fixedly connected to the upper end of the activity insertion rod.

[0011] Preferably, the diameter of the activity insertion rod is equal to the setting of the positioning hole. The bottom of the activity insertion rod penetrates through the inner sides of the two fixing blocks. A return spring is fixedly connected to the top of one of the fixing blocks at the upper end, and the upper end of the return spring is fixedly connected to the middle of the activity insertion rod.

[0012] In summary, the present application includes the following beneficial technical effects:

[0013] 1. By adding an extension bar inside the guardrail body and arranging an inverted V-shaped connecting arm structure at the bottom of the extension bar, when the positive and reverse thread screw rod inside the guardrail body is driven to rotate by the handwheel, it will drive the two movable blocks to move horizontally relative to each other, so that the two connecting arms are deformed, and under the cooperation of the concave seat, the extension bar is pushed upward from the inside of the guardrail body, so that the protection height of the guardrail body of the device can be adjusted to meet the protection requirements of different construction environments and enhance the applicability;

[0014] 2. By arranging the structures of mounting blocks, connecting plates, activity insertion rods, return springs and fixing blocks at both ends of the guardrail body respectively, it is convenient to assemble multiple guardrail bodies. When assembling, the mounting blocks are located inside the two fixing blocks. Under the thrust of the return spring, the activity insertion rod penetrates through the fixing blocks and is connected with the positioning holes on the surfaces of the mounting blocks, so as to complete the assembly operation of multiple guardrail bodies. It is convenient for the user to assemble multiple guardrail bodies arbitrarily according to actual needs, so as to increase the protection area and further enhance the applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall external structure schematic diagram of the application embodiment;

[0016] Figure 2 is the front view structure schematic diagram of the guardrail body of the application embodiment;

[0017] Figure 3 is the Figure 2Schematic diagram of the enlarged structure at A in [the figure];

[0018] Figure 4 It is a schematic diagram of the overall top view structure of the application embodiment;

[0019] Figure 5 It is a schematic diagram of the overall side view structure of the application embodiment.

[0020] Description of reference numerals: 1, guardrail body; 2, extension bar; 3, chute; 4, I-shaped slider; 5, handwheel; 6, left - right hand thread lead screw; 7, movable block; 8, fixed plate; 9, connecting arm; 10, concave seat; 11, convex block; 12, mounting block; 13, positioning hole; 14, connecting plate; 15, movable insertion rod; 16, fixed block; 17, handle; 18, return spring. Detailed implementation manners

[0021] The following will further elaborate on this application in conjunction with the attached Figures 1 - 5 drawings.

[0022] The embodiment of this application discloses an elevator installation protection safety device. Refer to Figures 1 - 4, including a guardrail body 1, an extension bar 2 is provided inside the rear surface of the guardrail body 1, sliding grooves 3 are opened at both inner ends of the guardrail body 1, and I-shaped sliders 4 adapted to the sliding grooves 3 are symmetrically and fixedly installed at both ends of the extension bar 2. The extension bar 2 is slidably connected to the inside of the sliding groove 3 through the I-shaped sliders 4. Through the cooperation between the I-shaped sliders 4 and the sliding grooves 3, the stability of the extension bar 2 during up and down movement inside the guardrail body 1 is enhanced. A concave seat 10 is fixedly connected to the bottom of the extension bar 2, and a handwheel 5 is installed at the bottom end of the side of the guardrail body 1. The inside of the handwheel 5 penetrates the guardrail body 1 and a positive and negative thread screw rod 6 is fixedly provided. The positive and negative thread screw rod 6 can be driven to rotate at the bottom of the guardrail body 1 through the handwheel 5. The other end of the positive and negative thread screw rod 6 is rotatably connected to the inside of the guardrail body 1, and two movable blocks 7 are threadedly connected to both ends of the surface of the positive and negative thread screw rod 6. When the positive and negative thread screw rod 6 rotates, it will drive the two movable blocks 7 to move horizontally relative to each other. Two fixing plates 8 are fixedly connected to the upper ends of the two movable blocks 7. The inner surfaces of the two groups of two fixing plates 8 are rotatably connected with a connecting arm 9. The upper end of the connecting arm 9 is rotatably connected to the inside of the concave seat 10. The two connecting arms 9 are arranged in an inverted V shape at the bottom of the extension bar 2. When the two movable blocks 7 move towards the middle side of the bottom of the extension bar 2, the two connecting arms 9 are deformed, and under the cooperation of the concave seat 10, the extension bar 2 is pushed upward from the inside of the guardrail body 1, so that the device can adjust the protection height of the guardrail body 1 to meet the protection requirements of different construction environments and enhance the applicability. A convex block 11 is fixedly connected to the bottom of the guardrail body 1, and the bottom of the two movable blocks 7 is slidably connected to the surface of the convex block 11. Through the cooperation between the convex block 11 and the movable block 7, the stability and positioning accuracy of the movable block 7 during horizontal movement are enhanced.

[0023] Refer to Figures 1 - 5, two mounting blocks 12 are evenly and fixedly connected to the side of the guardrail body 1. Positioning holes 13 are formed on the surfaces of the two mounting blocks 12. Two connecting plates 14 and four fixing blocks 16 are evenly and fixedly connected to the side of one end of the guardrail body 1 away from the mounting blocks 12. The four fixing blocks 16 are grouped in two, and the two groups of fixing blocks 16 are respectively arranged at the bottom of the connecting plates 14. An activity insertion rod 15 is penetrated through the middle of the two connecting plates 14. A handle 17 is fixedly connected to the upper end of the activity insertion rod 15. The diameter of the activity insertion rod 15 is set equal to that of the positioning hole 13. The bottom of the activity insertion rod 15 penetrates through the inner sides of the two fixing blocks 16. A return spring 18 is fixedly connected to the top of one of the fixing blocks 16 located at the upper end. The upper end of the return spring 18 is fixedly connected to the middle of the activity insertion rod 15. By using the thrust of the return spring 18, the activity insertion rod 15 penetrates through the fixing block 16 and is connected to the positioning hole 13 on the surface of the mounting block 12, thereby completing the assembly operation of multiple guardrail bodies 1. And the activity insertion rod 15 can be directly pulled out from the positioning hole 13 through the handle 17, making the assembly and disassembly of multiple guardrail bodies 1 faster, simpler and more convenient. The structures of the mounting block 12, the connecting plate 14, the activity insertion rod 15, the return spring 18 and the fixing block 16 are set to facilitate the assembly of multiple guardrail bodies 1, enabling the user to assemble multiple guardrail bodies 1 arbitrarily according to actual needs, thereby increasing the protection area and further enhancing the applicability.

[0024] The implementation principle of an elevator installation protection safety device in an embodiment of the present application is as follows: When using this device, first move this device to the elevator shaft opening to be protected, and fix it to the ground by using the two through holes at the bottom of the guardrail body 1 in cooperation with self-tapping screws. When adjusting the protection height of the guardrail body 1 according to actual needs, rotate the handwheel 5 at the bottom of the guardrail body 1 to drive the positive and negative thread screw rod 6 to rotate, so that the two movable blocks 7 move towards each other, thereby deforming the two connecting arms 9 with an inverted V-shaped structure at the upper ends of the movable blocks 7 and pushing the extension bar 2 upward, thereby realizing the adjustment of the overall protection height of the guardrail.

[0025] Finally, the following points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, or the communication inside two components, and can be directly connected. "Up", "down", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the object to be described changes, the relative position relationship may change;

[0026] Second: In the attached drawings of the disclosed embodiment of the present utility model, only the structures related to the disclosed embodiment of the present disclosure are involved. Other structures can refer to the usual designs. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0027] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

[0028] The above are all the preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, any equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. An elevator installation protection safety device, comprising a guardrail body (1), characterized in that: An extension fence (2) is provided on the inner side of the rear surface of the guardrail body (1), and slide grooves (3) are provided at both ends of the inner side of the guardrail body (1). I-shaped sliders (4) adapted to the slide grooves (3) are symmetrically fixedly installed at both ends of the extension fence (2). The extension fence (2) is slidably connected to the inside of the slide groove (3) through the I-shaped sliders (4). A concave seat (10) is fixedly connected to the bottom of the extension fence (2). A hand wheel (5) is installed at the bottom end of the side of the guardrail body (1). The inner side of the guardrail body (5) passes through the guardrail body (1) and is fixedly provided with a positive and negative threaded rod (6), the other end of the positive and negative threaded rod (6) is rotatably connected to the inner side of the guardrail body (1) and two movable blocks (7) are threadedly connected to the two ends of the surface of the positive and negative threaded rod (6), the upper ends of the two movable blocks (7) are fixedly connected to two fixed plates (8), the inner surfaces of the two groups of two fixed plates (8) are rotatably connected to a connecting arm (9), and the upper end of the connecting arm (9) is rotatably connected to the inner side of the concave seat (10).

2. An elevator installation protection safety device according to claim 1, characterized in that: The two connecting arms (9) are arranged in an inverted V shape at the bottom of the extension fence (2); the bottom of the guardrail body (1) is fixedly connected with a protrusion (11); and the bottoms of the two movable blocks (7) are slidably connected to the surface of the protrusion (11).

3. The elevator installation protection safety device according to claim 1, characterized in that: Two mounting blocks (12) are evenly and fixedly connected to the side of the guardrail body (1), and positioning holes (13) are provided on the surfaces of the two mounting blocks (12).

4. An elevator installation protection safety device according to claim 3, characterized in that: Two connecting plates (14) and four fixing blocks (16) are evenly and fixedly connected to the side of one end of the guardrail body (1) away from the mounting block (12), two of the four fixing blocks (16) form a group, and the two groups of fixing blocks (16) are respectively arranged at the bottom of the connecting plates (14), and a movable plug rod (15) is penetrated through the middle of the two connecting plates (14), and a handle (17) is fixedly connected to the upper end of the movable plug rod (15).

5. An elevator installation protection safety device according to claim 4, characterized in that: The diameter of the movable insertion rod (15) is equal to that of the positioning hole (13), and the bottom of the movable insertion rod (15) passes through the inner side of the two fixed blocks (16). The top of one of the fixed blocks (16) at the upper end is fixedly connected with a return spring (18), and the upper end of the return spring (18) is fixedly connected to the middle part of the movable insertion rod (15).

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