Tension spring balancer with size-adjustable structure

Abstract

The utility model relates to the technical field of tension spring balancers, and discloses a tension spring balancer with a size-adjustable structure, which comprises a balancer body, a hook is fixedly mounted at the top of the balancer body, a pull rope is wound inside the balancer body, and the size of the pull rope is adjustable. According to the tension spring balancer with the size-adjustable structure, the two-way lead screw is rotated through the rotary knob, meanwhile, the two-way lead screw is matched with the sliding block, the connecting rod and the connecting rod, the U-shaped ring can be driven to slide up and down on the inner wall of the bottom plate, the two-way lead screw is rotated through the rotary knob, and the two-way lead screw is rotated through the rotary knob to be matched with the sliding block, the connecting rod and the connecting rod. The size of the space between the U-shaped ring and the bottom plate can be freely adjusted through vertical movement of the U-shaped ring, climbing hooks of different sizes can be conveniently contained, and the balancer body and a tool can be conveniently connected through the climbing hooks of different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of tension spring balancers, in particular to a tension spring balancer with a size-adjustable structure. Background Art

[0002] The tension spring balancer is widely used in various production lines. It mainly uses the energy stored in the internal coil spring to offset the tension of the wire rope and the gravity of the objects hung on the balancer, so that the objects are in a weightless state and can move freely up and down. Especially for some large auxiliary tools, the use of balancers can ensure that the use of auxiliary tools is more convenient, improve work efficiency and work quality, and reduce the labor intensity of workers.

[0003] The rope of the tension spring balancer is usually equipped with a hanging ring, and then the hanging ring can be connected to the tool using a carabiner, but the size of the hanging ring is usually fixed. When the tool is larger, it is necessary to replace it with a larger carabiner for connection, and the size of the hanging ring cannot adapt to the larger carabiner. At this time, it is necessary to replace the appropriate tension spring balancer, which is not very convenient to use. Utility Model Content

[0004] The purpose of the utility model is to provide a tension spring balancer with a size-adjustable structure to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tension spring balancer with a size-adjustable structure, comprising a balancer body, a hook fixedly installed on the top of the balancer body, a pull rope wound around the inside of the balancer body, a bottom plate fixedly installed on one end of the pull rope away from the balancer body, an adjustment mechanism arranged on the bottom plate, by which the size of the space between the U-shaped ring and the bottom plate can be freely adjusted, a positioning mechanism arranged on the bottom plate, by which the connection between the carabiner and the U-shaped ring can be more stable, and the adjustment mechanism comprises:

[0006] A U-shaped ring, wherein the U-shaped ring is slidably connected to the inner wall of the bottom plate and penetrates the bottom plate, and a connecting rod is fixedly installed on the top of the U-shaped ring, and the U-shaped ring can accommodate carabiners of different sizes;

[0007] A bidirectional screw rod, one end of which is rotatably connected to the inner wall of the bottom plate, the other end of which passes through the bottom plate and is fixedly mounted with a knob, the inner wall of the bottom plate is slidably connected to a slider, and the inner wall of the slider is threadedly connected to the outer wall of the bidirectional screw rod;

[0008] A connecting rod, one end of which is hinged to the top of the sliding block, and the other end of which is hinged to the bottom of the connecting rod.

[0009] Preferably, the positioning mechanism comprises a pressure rod, one end of which is hinged to the outer wall of the U-shaped ring, and the other end of which is rotatably connected to a pulley. By arranging the pressure rod, the carabiner can be pressed tightly inside the U-shaped ring.

[0010] Preferably, a torsion spring is provided at the hinge between the pressure rod and the U-shaped ring, and the torsion spring can be provided so that the pressure rod drives the pulley to fit tightly to the bottom of the base plate.

[0011] Preferably, the pulley is attached to the bottom of the base plate, and the friction between the pressure rod and the base plate can be reduced by arranging the pulley.

[0012] Preferably, the pressure rods are provided in two groups, and the two groups of pressure rods are mirror-imaged and arranged on both sides of the U-shaped ring with the U-shaped ring as the central axis.

[0013] Preferably, the bidirectional screw rod is rotatably connected to the penetration point of the base plate.

[0014] Compared with the prior art, the utility model provides a tension spring balancer with a size-adjustable structure, which has the following beneficial effects:

[0015] 1. The tension spring balancer with a size-adjustable structure can drive the U-shaped ring to slide up and down on the inner wall of the bottom plate by rotating the bidirectional screw rod through the knob, and at the same time cooperate with the slider, the connecting rod, and the connecting rod. The space size between the U-shaped ring and the bottom plate can be freely adjusted by the up and down movement of the U-shaped ring, which is convenient for accommodating carabiners of different sizes and convenient for connecting the balancer body with the tool using carabiners of different sizes.

[0016] 2. The tension spring balancer with a size-adjustable structure moves upward through the U-shaped ring. At this time, the bottom plate and the pulley are used to rotate the pressure rod downward. The downward rotation of the pressure rod can tighten the carabiner connected to the inside of the U-shaped ring, so that the carabiner is firmly connected to the U-shaped ring, thereby improving the stability of the balancer body when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the top view of the bottom plate of the utility model;

[0019] Figure 3 This is a bottom view structural diagram of the bottom plate of the utility model;

[0020] Figure 4 For this utility model Figure 1 A is an enlarged structural diagram of FIG.

[0021] In the figure: 1. balancer body; 2. hook; 3. pull rope; 4. bottom plate; 5. adjustment mechanism; 51. U-shaped ring; 52. two-way screw rod; 53. connecting rod; 54. connecting rod; 55. knob; 56. slider; 6. positioning mechanism; 61. pressure rod; 62. pulley; 63. torsion spring. DETAILED DESCRIPTION

[0022] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: a tension spring balancer with a size-adjustable structure, comprising a balancer body 1, a hook 2 is fixedly installed on the top of the balancer body 1, and the balancer body 1 can be suspended by the hook 2, a pull rope 3 is wound around the inside of the balancer body 1, and a bottom plate 4 is fixedly installed at one end of the pull rope 3 away from the balancer body 1, and an adjustment mechanism 5 is arranged on the bottom plate 4, and the space size between the U-shaped ring 51 and the bottom plate 4 can be freely adjusted by setting the adjustment mechanism 5, so as to facilitate accommodating carabiners of different sizes, and a positioning mechanism 6 is arranged on the bottom plate 4, and the positioning mechanism 6 can make the connection between the carabiner and the U-shaped ring 51 more stable.

[0023] The adjustment mechanism 5 comprises a U-shaped ring 51, a two-way screw rod 52, a connecting rod 53, a connecting rod 54, a knob 55 and a slider 56; the U-shaped ring 51 is slidably connected to the inner wall of the bottom plate 4, and the U-shaped ring 51 penetrates the bottom plate 4. The space between the U-shaped ring 51 and the bottom plate 4 can be expanded by moving the U-shaped ring 51 downward, so as to facilitate accommodating a larger size of a carabiner. A connecting rod 54 is fixedly installed on the top of the U-shaped ring 51, one end of the two-way screw rod 52 is rotatably connected to the inner wall of the bottom plate 4, and the other end of the two-way screw rod 52 penetrates the bottom plate 4 and is fixedly installed with a knob 55. The bidirectional screw rod 52 is rotatably connected to the penetration point of the base plate 4, and a slider 56 is slidably connected to the inner wall of the base plate 4. The inner wall of the slider 56 is threadedly connected to the outer wall of the bidirectional screw rod 52. The bidirectional screw rod 52 is rotated by the knob 55. The rotation of the bidirectional screw rod 52 can drive the two groups of sliders 56 threadedly connected to it to move synchronously in opposite directions. One end of the connecting rod 53 is hinged at the top of the slider 56, and the other end of the connecting rod 53 is hinged at the bottom of the connecting rod 54. The sliding of the slider 56 cooperates with the connecting rod 53 and the connecting rod 54 to drive the U-shaped ring 51 to slide up and down.

[0024] The above-mentioned positioning mechanism 6 includes a pressure rod 61, a pulley 62, and a torsion spring 63; one end of the pressure rod 61 is hinged to the outer wall of the U-shaped ring 51, and the other end of the pressure rod 61 is rotatably connected to the pulley 62. When the U-shaped ring 51 moves upward, the U-shaped ring 51 will drive the pressure rod 61 to move upward synchronously, and at this time the bottom plate 4 will limit the pulley 62, so that the pressure rod 61 rotates downward, and a torsion spring 63 is provided at the hinge between the pressure rod 61 and the U-shaped ring 51. The elasticity of the torsion spring 63 can make the pressure rod 61 drive the pulley 62 to fit tightly to the bottom of the bottom plate 4, and the pulley 62 fits to the bottom of the bottom plate 4. The pressure rod 61 is provided with two groups. The two groups of pressure rods 61 are mirror-imaged on both sides of the U-shaped ring 51 with the U-shaped ring 51 as the central axis. The carabiner clamped inside the U-shaped ring 51 can be pressed by rotating the pressure rod 61 downward, so that the carabiner is firmly clamped on the U-shaped ring 51.

[0025] Working principle: when it is necessary to replace a larger size of carabiner for connection, first rotate the bidirectional screw rod 52 through the knob 55. The rotation of the bidirectional screw rod 52 can drive the two sets of sliders 56 threadedly connected to it to move synchronously in opposite directions and away from each other. At this time, the two sets of sliders 56 will pull the connecting rod 53, so that the connecting rod 53 pulls the connecting rod 54 downward. At this time, the connecting rod 54 will drive the U-shaped ring 51 to move downward. The downward movement of the U-shaped ring 51 can expand the space between the U-shaped ring 51 and the bottom plate 4, so as to facilitate the accommodation of larger size of carabiners and facilitate the use of carabiners of different sizes to connect the balancer body 1 with the tool.

[0026] When the U-shaped ring 51 moves upward, the U-shaped ring 51 will drive the pressure rod 61 to move upward synchronously, and at this time the pulley 62 will be limited by the bottom plate 4. Therefore, the U-shaped ring 51 drives the pressure rod 61 to move upward and at the same time, the pressure rod 61 will rotate downward and compress the torsion spring 63. The downward rotation of the pressure rod 61 can tighten the carabiner clamped inside the U-shaped ring 51, so that the carabiner is firmly clamped on the U-shaped ring 51, thereby improving the stability of the balancer body 1 when in use.

[0027] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A tension spring balancer with a size-adjustable structure, comprising a balancer body (1), characterized in that: A hook (2) is fixedly mounted on the top of the balancer body (1), a pull rope (3) is wound around the inside of the balancer body (1), a bottom plate (4) is fixedly mounted on one end of the pull rope (3) away from the balancer body (1), an adjustment mechanism (5) is arranged on the bottom plate (4), and a positioning mechanism (6) is arranged on the bottom plate (4), and the adjustment mechanism (5) comprises: A U-shaped ring (51), wherein the U-shaped ring (51) is slidably connected to the inner wall of the bottom plate (4), and the U-shaped ring (51) passes through the bottom plate (4), and a connecting rod (54) is fixedly installed on the top of the U-shaped ring (51); A bidirectional screw rod (52), one end of which is rotatably connected to the inner wall of the base plate (4), the other end of which passes through the base plate (4) and is fixedly mounted with a knob (55), the inner wall of the base plate (4) is slidably connected to a slider (56), and the inner wall of the slider (56) is threadedly connected to the outer wall of the bidirectional screw rod (52); A connecting rod (53), one end of which is hinged to the top of the slider (56), and the other end of which is hinged to the bottom of the connecting rod (54).

2. The tension spring balancer with a size-adjustable structure according to claim 1, characterized in that: The positioning mechanism (6) comprises a pressure rod (61), one end of which is hinged to the outer wall of the U-shaped ring (51), and the other end of which is rotatably connected to a pulley (62).

3. The tension spring balancer with a size-adjustable structure according to claim 2, characterized in that: A torsion spring (63) is provided at the hinged position between the pressure rod (61) and the U-shaped ring (51).

4. The tension spring balancer with a size-adjustable structure according to claim 2, characterized in that: The pulley (62) is attached to the bottom of the base plate (4).

5. The tension spring balancer with a size-adjustable structure according to claim 2, characterized in that: The pressure rods (61) are provided in two groups, and the two groups of pressure rods (61) are mirror-imaged and arranged on both sides of the U-shaped ring (51) with the U-shaped ring (51) as the central axis.

6. The tension spring balancer with a size-adjustable structure according to claim 1, characterized in that: The bidirectional screw rod (52) is rotatably connected to the penetration point of the bottom plate (4).

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