Constant-force spring hanger with protection function

Abstract

The utility model discloses a constant force spring hanger with a protection function, which comprises a fixed frame and a cylinder fixed on the side surface of the fixed frame, a slewing mechanism is rotatably connected in the fixed frame, the lower part of the slewing mechanism is connected with a load connecting piece, a spring mechanism connected with the slewing mechanism is arranged in the cylinder, and a notch is formed in the left side of the upper end of the cylinder. A protection plate is inserted into the notch, an L-shaped support is fixed to the upper end of the protection plate, a positioning hole is formed in the upper end of the L-shaped support, and a positioning rod is fixedly welded to the upper end of the barrel and located on the right side of the notch. According to the constant-force spring hanging bracket with the protection function, a traditional protection plate fixed through welding or screws is improved into the mode that the notch is formed in the upper surface of the cylinder in advance, and therefore when the protection plate is installed, the protection plate can be directly inserted into the notch to be installed, the protection plate can be conveniently installed, and after the protection plate is installed, the protection plate is not prone to falling off. And the positioning rods and the positioning holes can be used for positioning and limiting, so that the stability of the protection plate after installation is ensured.

Description

Technical Field

[0001] This utility model relates to the field of constant force spring hanger technology, and in particular to a constant force spring hanger with protective function. Background Technology

[0002] The function of a constant force spring hanger is to keep the load torque and spring torque in balance under permissible load. For pipes and equipment supported by a constant force hanger, it can provide a constant supporting force when displacement occurs, thus avoiding additional stress on the pipes and equipment.

[0003] Currently, a utility model patent with patent document number CN217978284U discloses a constant force spring hanger with protective function. This constant force spring hanger can prevent the spring assembly from falling to the ground after flying out from a high altitude, playing a good protective role, ensuring the safe and stable operation of the generator set, and improving safety. However, the protective plate used is fixed by welding or screws, which makes the installation of the protective plate more complicated. Utility Model Content

[0004] The purpose of this utility model is to overcome the defects of the prior art and provide a constant force spring hanger with protective function to solve the problems mentioned in the background art.

[0005] A constant force spring hanger with protective function includes a fixed frame and a cylinder fixed to its side. A rotatable mechanism is rotatably connected inside the fixed frame. A load connecting member is connected to the lower part of the rotatable mechanism. A spring mechanism connected to the rotatable mechanism is installed inside the cylinder. A notch is opened on the left side of the upper end of the cylinder. A protective plate is inserted into the notch. An L-shaped bracket is fixed to the upper end of the protective plate. A positioning hole is opened at the upper end of the L-shaped bracket. A positioning rod is welded and fixed to the upper end of the cylinder and located on the right side of the notch. The positioning rod is inserted into the positioning hole.

[0006] Preferably, the spring mechanism includes a pressure plate, a pull rod, and a spring. The pressure plate is slidably connected inside the cylinder. The pull rod is fixed at the center of the pressure plate. The right part of the pull rod moves through the cylinder and is connected to a rotary mechanism. The spring is located outside the pull rod and is connected between the right end of the pressure plate and the right end inside the cylinder.

[0007] Preferably, a blocking block is elastically connected to the surface of the positioning rod and above the positioning hole.

[0008] Preferably, a side groove is formed on the surface of the positioning rod above the positioning hole, the blocking block is slidably connected inside the side groove, and a compression spring is fixed between the blocking block and the bottom of the side groove.

[0009] Preferably, the lower end of the blocking block is elastically connected with a ball bearing.

[0010] Preferably, the lower end of the blocking block has a second side groove, and a ball bearing seat is slidably connected inside the second side groove. A second compression spring is fixed between the ball bearing seat and the bottom of the second side groove. The lower end of the ball bearing seat has a rolling groove, and the ball bearing is slidably connected inside the rolling groove.

[0011] The beneficial effects of this utility model are as follows: The constant force spring hanger with protective function improves the traditional welded or screw-fixed protective plate by pre-opening a notch on the upper surface of the cylinder. This way, when installing the protective plate, it can be directly inserted into the notch for installation, which facilitates the installation of the protective plate. Moreover, after the protective plate is installed, it can be positioned and limited by the positioning rod and positioning hole, thereby ensuring the stability of the protective plate after installation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0013] Figure 2 This utility model Figure 1 A diagram showing the disassembly of the protective panel;

[0014] Figure 3 This is a schematic cross-sectional view of the cylindrical body of this utility model;

[0015] Figure 4 This utility model Figure 3 A magnified view of part A.

[0016] In the diagram: 1-Fixed frame, 2-Cylinder body, 3-Rotating mechanism, 4-Load connector, 5-Notch, 6-Protective plate, 7-L-shaped bracket, 8-Positioning rod, 9-Blocking block, 10-Positioning hole, 11-Pressure plate, 12-Pull rod, 13-Spring, 14-Side groove one, 15-Compression spring one, 16-Side groove two, 17-Compression spring two, 18-Ball seat, 19-Ball. Detailed Implementation

[0017] Please see Figures 1-4A constant force spring hanger with protective function includes a fixed frame 1 and a cylinder 2 fixed to its side. A rotary mechanism 3 is rotatably connected inside the fixed frame 1. A load connecting member 4 is connected to the lower part of the rotary mechanism 3. A spring mechanism connected to the rotary mechanism 3 is installed inside the cylinder 2. The spring mechanism includes a pressure plate 11, a pull rod 12 and a spring 13. The pressure plate 11 is slidably connected inside the cylinder 2. The pull rod 12 is fixed at the center of the pressure plate 11. The right part of the pull rod 12 moves through the cylinder 2 and is connected to the rotary mechanism 3. The spring 13 is located outside the pull rod 12 and is connected between the right end of the pressure plate 11 and the right end inside the cylinder 2. When the load connecting member 4 is subjected to a downward pulling force, the pull rod 12 can be pulled by the rotary mechanism 3, and then the pull rod 12 pulls the pressure plate 11 to squeeze the spring 13.

[0018] A notch 5 is opened on the upper left side of the cylinder 2. A protective plate 6 is inserted into the notch 5. An L-shaped bracket 7 is fixed to the upper end of the protective plate 6. A positioning hole 10 is opened on the upper end of the L-shaped bracket 7. A positioning rod 8 is welded and fixed to the upper end of the cylinder 2 and located to the right of the notch 5. The positioning rod 8 is inserted into the positioning hole 10. The notch 5 is semi-circular. The diameter of the protective plate 6 is equal to that of the notch 5 and the inner diameter of the cylinder 2. Thus, when the protective plate 6 is inserted into the notch 5, it can be directly inserted into the cylinder 2 and located to the left of the pressure plate 11. Then, the positioning rod 8 is inserted into the positioning hole 10 of the L-shaped bracket 7. The L-shaped bracket 7 and the protective plate 6 are fixed as one piece. This improves the traditional welding or screw fixing of the protective plate 6 by pre-opening a notch 5 on the upper surface of the cylinder 2. When installing the protective plate 6, it can be directly inserted into the notch 5 for installation, which facilitates the installation of the protective plate 6.

[0019] A blocking block 9 is elastically connected to the surface of the positioning rod 8 above the positioning hole 10. A side groove 14 is formed on the surface of the positioning rod 8 above the positioning hole 10. The blocking block 9 is slidably connected inside the side groove 14. A compression spring 15 is fixed between the blocking block 9 and the bottom of the side groove 14. When the positioning rod 8 is inserted into the positioning hole 10 of the L-shaped bracket 7, the blocking block 9 needs to be pressed first to press the blocking block 9 into the side groove 14 and compress the compression spring 15 until the blocking block 9 no longer blocks the positioning rod 8 from passing through the positioning hole 10. Then, after the positioning rod 8 passes through the positioning hole 10, the compression spring 15 pushes the blocking block 9 to reset and block the L-shaped bracket 7, thereby positioning and limiting the protective plate 6.

[0020] The lower end of the blocking block 9 is elastically connected to a ball bearing 19. The lower end of the blocking block 9 has a side groove 16. A ball bearing seat 18 is slidably connected inside the side groove 16. A compression spring 17 is fixed between the ball bearing seat 18 and the bottom of the side groove 16. The lower end of the ball bearing seat 18 has a rolling groove. The ball bearing 19 is slidably connected inside the rolling groove. When the blocking block 9 presses into the side groove 14 and squeezes the compression spring 15, the ball bearing seat 18 is squeezed by the inner wall of the side groove 16 and rolls with the inner wall of the side groove 16, causing the ball bearing seat 18 to move into the side groove 16 and squeeze the compression spring 17. When the blocking block 9 resets to block the L-shaped bracket 7, the compression spring 17 pops out of the ball bearing seat 18, so that the ball bearing 19 presses tightly against the L-shaped bracket 7, thereby ensuring the stability of the protective plate 6 after installation.

Claims

1. Constant force spring hanger with protection function, comprising fixed frame (1) and fixed cylinder (2) on its side, the fixed frame (1) is rotatably connected with rotary mechanism (3) inside, the rotary mechanism (3) is connected with load connecting piece (4) in lower part, the cylinder (2) is installed with spring mechanism connected with rotary mechanism (3) inside, characterized in that: The upper left side of the cylinder (2) is provided with an opening (5), the opening (5) is inserted with a protective plate (6), the upper end of the protective plate (6) is fixed with an L-shaped support (7), the upper end of the L-shaped support (7) is provided with a positioning hole (10), the upper end of the cylinder (2) and the right side of the opening (5) are welded with a positioning rod (8), and the positioning rod (8) is inserted with the positioning hole (10).

2. The constant force spring hanger with a protection function according to claim 1, characterized in that: The spring mechanism comprises a pressing plate (11), a pull rod (12) and a spring (13), the pressing plate (11) is slidably connected inside the cylinder (2), the pull rod (12) is fixed at the center of the pressing plate (11), the right part of the pull rod (12) is movably inserted through the cylinder (2), the right part of the pull rod (12) is connected with the rotary mechanism (3), and the spring (13) is located outside the pull rod (12) and connected between the right end of the pressing plate (11) and the right end inside the cylinder (2).

3. The constant force spring hanger with a protection function according to claim 1, characterized in that: The surface of the positioning rod (8) and above the positioning hole (10) are elastically connected with a blocking block (9).

4. The constant force spring hanger with a protection function according to claim 3, characterized in that: The surface of the positioning rod (8) and above the positioning hole (10) are provided with a side groove one (14), the blocking block (9) is slidably connected inside the side groove one (14), and the blocking block (9) and the groove bottom of the side groove one (14) are fixed with a compression spring one (15).

5. The constant force spring hanger with a protection function according to claim 4, characterized in that: The lower end of the blocking block (9) is elastically connected with a ball (19).

6. The constant-force spring hanger with a protection function according to claim 5, characterized in that: The lower end of the blocking block (9) is provided with a side groove two (16), the side groove two (16) is slidably connected with a ball seat (18) inside, the ball seat (18) and the groove bottom of the side groove two (16) are fixed with a compression spring two (17), the lower end of the ball seat (18) is provided with a rolling groove, and the ball (19) is rolling connected inside the rolling groove.

Images