Counterweight car lower beam assembly

Abstract

This utility model relates to a counterweight-type car lower beam assembly, including a lower beam body, a safety clamp assembly, and a diagonal bracing assembly. The lower beam body has mounting edges on both sides of its top, with main mounting holes on the mounting edges. The lower beam body has a counterweight groove, and safety clamp mounting plates are located at both ends of the counterweight groove. The safety clamp assembly is mounted on the safety clamp mounting plates. A counterweight block is located within the counterweight groove. End plates are located at the ends of the lower beam body on both sides of the safety clamp assembly. The diagonal bracing assembly includes a rotating rod and a connecting rod. The connecting rod is connected to the operating end of the safety clamp assembly. A torsion spring is located on the end plate, driving the rotating rod to reset. This utility model, by providing a counterweight groove on the lower beam body and a counterweight block within the groove, facilitates the counterweighting of the car, ensuring the car's stability. The tightly packed counterweights within the lower beam body effectively strengthen the lower beam body and reduce deformation caused by external forces. The safety clamp mounting plates are located at the ends of the counterweight groove, allowing the safety clamp assembly to be mounted at the ends of the lower beam body, reducing the overall height of the lower beam assembly.

Description

Technical Field

[0001] This utility model relates to a car-type elevator, and in particular to a counterweight-type car lower beam assembly. Background Technology

[0002] For safety reasons, elevator cars typically have a lower beam at the bottom to strengthen the car and facilitate the installation of mounting components. Existing lower beams are usually made by welding two C-shaped steel openings together, which prevents the placement of counterweights. Mounting components must be installed below the ends of the lower beam, resulting in a relatively high overall height for the lower beam assembly. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a counterweight-type car lower beam assembly.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a counterweight-type car lower beam assembly, including a lower beam body, safety clamp assemblies disposed at both ends of the lower beam body, and diagonal bracing assemblies disposed on the side of the lower beam body. The lower beam body has a U-shaped cross-section with an upward opening. The top two sides of the lower beam body are provided with mounting edges extending along the edges. The mounting edges are provided with main mounting holes. The lower beam body is provided with an upward-opening counterweight groove. Safety clamp mounting plates are provided at both ends of the counterweight groove. The safety clamp assembly is mounted on the safety clamp mounting plate. A counterweight block is provided in the counterweight groove. The mounting edges and the lower beam body are integrally structured. End plates are provided at the ends of the lower beam body on both sides of the safety clamp assembly. The diagonal bracing assembly includes a rotating rod with both ends rotatably connected to the end plates and a connecting rod disposed at both ends of the rotating rod. The connecting rod is connected to the operating end of the safety clamp assembly. A torsion spring is provided on the end plate to connect the rotating rod. The torsion spring drives the rotating rod to reset.

[0005] As a further improvement to this design, the counterweight groove is provided with two opposing clamping seats, and clamping bolts are threaded onto the clamping seats. The counterweights are closely arranged in the counterweight groove and distributed along the length of the counterweight groove. One end of the clamping bolt is provided with a pressure plate, which abuts against the end of the counterweights arranged at the end. The two sides of the counterweights are in contact with the two sides of the counterweight groove, and the top of the counterweights is flush with the top of the counterweight groove.

[0006] As a further improvement to this design, a limit switch is provided on the lower beam, and a pawl that rotates with the rotating rod is provided on the rotating rod. The detection handle of the limit switch is located on the rotation path of the pawl. That is, when the rotating rod rotates, the limit switch is activated by the pawl, thereby realizing the output of an electrical signal for the safety clamp assembly to move.

[0007] As a further improvement to this design, the edge of the mounting edge is provided with a downward-facing flange.

[0008] As a further improvement to this design, the safety clamp assembly includes a safety clamp base, a fixed safety clamp mechanism disposed on one side of the safety clamp base, and a movable safety clamp mechanism disposed on the other side of the safety clamp base. A guide rail groove is provided between the fixed safety clamp mechanism and the movable safety clamp mechanism for the guide rail to pass through. The fixed safety clamp mechanism includes a fixed safety clamp seat that slides horizontally along the safety clamp base and a fixed safety clamp shoe that slides up and down along the fixed safety clamp seat. An adjusting bolt is threaded onto the safety clamp base and is connected to the fixed safety clamp seat. The horizontal sliding path of the fixed safety clamp seat points to the guide rail groove, and the adjustment direction of the adjusting bolt on the fixed safety clamp seat points to the guide rail groove. A return spring is provided between the bottom of the fixed safety clamp seat and the bottom of the fixed safety clamp shoe, and the return spring applies a downward pulling force to the fixed safety clamp shoe. The movable safety clamp mechanism includes a movable safety clamp seat fixed to the safety clamp base and a movable safety clamp shoe that slides up and down along the movable safety clamp seat. The sliding path of the movable safety clamp shoe and the fixed safety clamp shoe is a downward-opening trumpet shape.

[0009] The beneficial effects of this utility model are as follows: By setting a counterweight groove on the lower beam and setting a counterweight block in the counterweight groove, this utility model facilitates the counterweighting of the car and ensures the stability of the car. The tightly arranged counterweights filling the lower beam can effectively strengthen the strength of the lower beam and reduce deformation caused by external forces. The safety clamp mounting plate is set at the end of the counterweight groove, so that the safety clamp assembly can be installed at the end of the lower beam, reducing the height of the entire lower beam assembly. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0011] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0012] Figure 2 This is a three-dimensional structural diagram of the safety clamp assembly of this utility model.

[0013] Figure 3 This is a top view of the entire utility model.

[0014] In the diagram: 1. Lower beam, 2. Mounting edge, 3. Counterweight, 4. Pressure plate, 5. Clamping bolt, 6. Counterweight groove, 7. Safety gear assembly, 70. Reset spring, 71. Safety gear base, 72. Fixed safety gear shoe, 73. Adjusting bolt, 74. Fixed safety gear seat, 75. Guide rail groove, 76. Moving safety gear seat, 77. Moving safety gear shoe, 8. Diagonal pull assembly, 80. Connecting rod, 81. Rotating rod, 9. Torsion spring, 10. Clamping seat, 11. Pad, 12. Limit switch, 13. End plate, 14. Main mounting hole, 15. Safety gear mounting plate, 16. Guide rail. Detailed Implementation

[0015] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The illustrative embodiments and descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0016] Example: A counterweight-type car lower beam assembly includes a lower beam body 1, safety clamp assemblies 7 disposed at both ends of the lower beam body 1, and diagonal bracing assemblies 8 disposed on the side of the lower beam body 1. The lower beam body 1 has a U-shaped cross-section with an upward opening. Mounting edges 2 extending along the edges are provided on both sides of the top of the lower beam body 1. Main mounting holes 14 are provided on the mounting edges 2. The lower beam body 1 has an upward-opening counterweight groove 6. Safety clamp mounting plates 15 are provided at both ends of the counterweight groove 6. The safety clamp assemblies 7 are mounted on the safety clamp mounting plates. On the 15, a counterweight block 3 is provided in the counterweight groove 6. The mounting edge 2 and the lower beam 1 are an integral structure. The lower beam 1 on both sides of the safety clamp assembly 7 is provided with end plates 13. The inclined pull assembly 8 includes a rotating rod 81 with both ends rotatably connected to the end plates 13 and a connecting rod 80 provided at both ends of the rotating rod 81. The connecting rod 80 is connected to the operating end of the safety clamp assembly 7. A torsion spring 9 is provided on the end plate 13 to connect the rotating rod 81. The torsion spring 9 drives the rotating rod 81 to reset.

[0017] The above-mentioned method of setting a counterweight groove 6 on the lower beam 1 and setting a counterweight block 3 in the counterweight groove 6 facilitates the counterweighting of the car and ensures the stability of the car. The tightly arranged counterweights filling the lower beam 1 can effectively strengthen the strength of the lower beam 1 and reduce the deformation caused by external forces. The safety clamp mounting plate 15 is set at the end of the counterweight groove 6, so that the safety clamp assembly 7 can be installed at the end of the lower beam 1, reducing the height of the entire lower beam assembly.

[0018] To facilitate the placement and fixing of the counterweights 3, two opposing clamping seats 10 are provided in the counterweight groove 6. Each clamping seat 10 is threaded with a clamping bolt 5. The counterweights 3 are tightly arranged within the counterweight groove 6 and distributed along its length. One end of each clamping bolt 5 is provided with a pressure plate 4, which abuts against the ends of the counterweights 3. The sides of the counterweights 3 are flush with the sides of the counterweight groove 6, and the top of the counterweights 3 is flush with the top of the counterweight groove 6. This facilitates tight filling of the counterweight groove 6, increases the stability of the counterweights 3, and enhances the strength of the lower beam 1.

[0019] The lower beam 1 is equipped with a limit switch 12 to facilitate the detection of the working status of the safety clamp assembly 7. The rotating rod 81 is equipped with a pawl 11 that rotates with the rotating rod 81. The detection handle of the limit switch 12 is located on the rotation path of the pawl 11. That is, when the rotating rod 81 rotates, the limit switch 12 is activated by the pawl 11, thereby realizing the output of an electrical signal indicating the action of the safety clamp assembly 7.

[0020] To further enhance the strength of the mounting edge 2, the edge of the mounting edge 2 is provided with a downward flange.

[0021] The safety clamp assembly 7 includes a safety clamp base 71, a fixed safety clamp mechanism disposed on one side of the safety clamp base 71, and a movable safety clamp mechanism disposed on the other side of the safety clamp base 71. A guide rail groove 75 is provided between the fixed safety clamp mechanism and the movable safety clamp mechanism, through which a guide rail 16 passes. The fixed safety clamp mechanism includes a fixed safety clamp seat 74 that slides horizontally along the safety clamp base 71 and a fixed safety clamp shoe 72 that slides vertically along the fixed safety clamp seat 74. An adjusting bolt 73 is threadedly connected to the safety clamp base 71. The adjusting bolt 73 is used to adjust the gap between the fixed safety clamp shoe 72 and the guide rail 16 to facilitate the operation of the safety clamp assembly 7. The adjusting bolt 73 is connected to the fixed safety clamp seat 74, the horizontal sliding path of the fixed safety clamp seat 74 points to the guide rail groove 75, and the adjustment direction of the adjusting bolt 73 on the fixed safety clamp seat 74 points to the guide rail groove 75. A return spring 70 is provided between the bottom of the fixed safety clamp seat 74 and the bottom of the fixed safety clamp shoe 72. The return spring 70 applies a downward pulling force to the fixed safety clamp shoe 72, facilitating its reset. The movable safety clamp mechanism includes a movable safety clamp seat 76 fixed to the safety clamp base 71 and a movable safety clamp shoe 77 that slides up and down along the movable safety clamp seat 76. The sliding path of the movable safety clamp shoe 77 and the fixed safety clamp shoe 72 is a downward-opening trumpet shape. The movable safety clamp shoe 77 is connected to the connecting rod 80, and the rotating rod 81 facilitates the synchronous movement of the movable safety shoes on both sides. When the car falls, the fixed safety shoe and the movable safety shoe grip the guide rail, acting as a brake.

[0022] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A counterweight-type car lower beam assembly, characterized in that, The device includes a lower beam, safety clamp assemblies disposed at both ends of the lower beam, and diagonal bracing assemblies disposed on the sides of the lower beam. The lower beam has an upward-opening U-shaped cross-section. Mounting edges extending along the edges are provided on both sides of the top of the lower beam, with main mounting holes on the mounting edges. The lower beam has upward-opening counterweight grooves, with safety clamp mounting plates at both ends of the counterweight grooves. The safety clamp assemblies are mounted on the safety clamp mounting plates. A counterweight block is disposed within the counterweight grooves. The mounting edges and the lower beam are integrally formed. End plates are provided at the ends of the lower beam on both sides of the safety clamp assemblies. The diagonal bracing assemblies include rotating rods rotatably connected to the end plates at both ends, and connecting rods disposed at both ends of the rotating rods. The connecting rods are connected to the operating ends of the safety clamp assemblies. A torsion spring connected to the rotating rod is provided on the end plates, and the torsion spring drives the rotating rod to reset.

2. The counterweight-type car lower beam assembly according to claim 1, characterized in that, The counterweight groove is provided with two opposing clamping seats, and clamping bolts are threaded onto the clamping seats. The counterweight blocks are closely arranged in the counterweight groove and distributed along the length of the counterweight groove. One end of the clamping bolt is provided with a pressure plate, which abuts against the end of the counterweight block arranged at the end. The two sides of the counterweight block are in contact with the two sides of the counterweight groove, and the top of the counterweight block is flush with the top of the counterweight groove.

3. The counterweight-type car lower beam assembly according to claim 1, characterized in that, The lower beam is equipped with a limit switch, and the rotating rod is equipped with a pawl that rotates with the rotating rod. The detection handle of the limit switch is located on the rotation path of the pawl. That is, when the rotating rod rotates, the limit switch is activated by the pawl, thereby realizing the output of an electrical signal for the safety clamp assembly to move.

4. A counterweight-type car lower beam assembly according to claim 2, characterized in that, The edge of the mounting edge is provided with a downward-facing flange.

5. A counterweight-type car lower beam assembly according to claim 2, characterized in that, The safety clamp assembly includes a safety clamp base, a fixed safety clamp mechanism disposed on one side of the safety clamp base, and a movable safety clamp mechanism disposed on the other side of the safety clamp base. A guide rail groove is provided between the fixed safety clamp mechanism and the movable safety clamp mechanism for the guide rail to pass through. The fixed safety clamp mechanism includes a fixed safety clamp seat that slides horizontally along the safety clamp base and a fixed safety clamp shoe that slides up and down along the fixed safety clamp seat. An adjusting bolt is threaded onto the safety clamp base and is connected to the fixed safety clamp seat. The horizontal sliding path of the fixed safety clamp seat points to the guide rail groove, and the adjustment direction of the adjusting bolt on the fixed safety clamp seat points to the guide rail groove. A return spring is provided between the bottom of the fixed safety clamp seat and the bottom of the fixed safety clamp shoe, and the return spring applies a downward pulling force to the fixed safety clamp shoe. The movable safety clamp mechanism includes a movable safety clamp seat fixed to the safety clamp base and a movable safety clamp shoe that slides up and down along the movable safety clamp seat. The sliding path of the movable safety clamp shoe and the fixed safety clamp shoe is a downward-opening trumpet shape.

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