Spring load auxiliary adjusting tool of constant-force spring hanger

Abstract

The utility model discloses an auxiliary spring load adjusting tool for a constant-force spring hanger, which comprises an outer cover shell, a main spring mechanism and auxiliary spring mechanisms arranged on two sides of the main spring mechanism are arranged in the outer cover shell, a locking mechanism is arranged on the main spring mechanism, and the auxiliary spring mechanisms are arranged on two sides of the main spring mechanism. A spring load auxiliary adjusting hydraulic mechanism is arranged on the lower portion of the main spring mechanism, and the spring load auxiliary adjusting hydraulic mechanism is used for adjusting the spring load of the main spring mechanism between the auxiliary spring mechanisms in a hydraulic auxiliary mode. Auxiliary hydraulic adjustment can be carried out on the spring load, meanwhile, the locking toothed plate can be rapidly taken out, the constant-force spring hanger can work normally, manual load adjustment operation is not needed, time and labor are saved, and use is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of constant force spring hangers, and in particular relates to a spring load auxiliary adjustment tool for a constant force spring hanger. Background Art

[0002] A constant force spring refers to a spring that can maintain a constant elastic force within a corresponding stroke. It is also called a fixed force spring. Compared with ordinary compression or tension springs, its elastic force is relatively constant and can output a nearly linear elastic force. It is widely used in various industries such as mechanical processing and interior decoration.

[0003] When the constant force spring is used for hanging, the connecting part is usually hung on the end of the guide tube inside the main spring that extends from the main spring support plate. The main spring is pushed downward and compressed through the guide tube inside the main spring. At the same time, the roller fixing frame moves downward to squeeze the knife cams and auxiliary springs on both sides.

[0004] When the constant force spring hanger is in use, the gravity changes as the pipe wall thickness, insulation layer thickness and density change. The spring is needed to balance the supporting force of the pipe. At this time, the spring load needs to be adjusted to achieve a better balance without generating additional force on the pipe. However, the existing constant force spring hanger load adjustment is mostly done manually, which results in time-consuming and labor-intensive adjustment of the spring and is not convenient for the normal use of the constant force spring hanger. For this reason, we propose a spring load auxiliary adjustment tool for the constant force spring hanger. Utility Model Content

[0005] The utility model aims to provide a spring load auxiliary adjustment tool for a constant force spring hanger to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a spring load auxiliary adjustment tool for a constant force spring hanger, comprising an outer cover shell, in which a main spring mechanism and auxiliary spring mechanisms arranged on both sides of the main spring mechanism are arranged, a locking mechanism is arranged on the main spring mechanism, and a spring load auxiliary adjustment hydraulic mechanism is arranged at the lower part of the main spring mechanism, and the spring load auxiliary adjustment hydraulic mechanism is used for hydraulically assisting the adjustment of the spring load of the main spring mechanism between the auxiliary spring mechanism.

[0007] Preferably, the main spring mechanism comprises a roller assembly, a main spring inner guide tube, a main spring and a main spring support plate;

[0008] The main spring support plate is arranged at the lower part of the outer cover shell through a load adjustment beam, an adjustment screw and an adjustment nut, the roller assembly is arranged at the upper end of the inner guide tube of the main spring, the lower end of the inner guide tube of the main spring passes through the main spring support plate, and the main spring arranged between the roller assembly and the main spring support plate is sleeved on the inner guide tube of the main spring.

[0009] Preferably, the roller assembly comprises a roller fixing frame, a roller shaft and a roller;

[0010] The roller fixing frame is arranged at the upper end of the guide tube in the main spring, and two roller shafts and two rollers are provided. The two rollers are symmetrically arranged on the roller fixing frame through the roller shaft, and the two rollers are respectively arranged corresponding to the two auxiliary spring mechanisms.

[0011] Preferably, the auxiliary spring mechanism comprises an auxiliary spring, an auxiliary spring pressure plate, a knife-shaped cam and an auxiliary spring rotating shaft;

[0012] The auxiliary spring is arranged on the inner side of the outer cover shell, the auxiliary spring pressure plate is clamped on the auxiliary spring, the knife cam is arranged at the position corresponding to the roller in the outer cover shell through the rotation of the camshaft, and the auxiliary spring rotating shaft is arranged on the knife cam and connected with the auxiliary spring pressure plate through a threaded rod.

[0013] Preferably, the locking mechanism comprises a positioning pin, a locking rack, a locking tooth plate and an opening retaining ring;

[0014] The locating pin is arranged on the roller fixing frame, and an adjustment slot is arranged on the outer cover shell at a position corresponding to the locating pin, and both ends of the locating pin extend out of the adjustment slot respectively, and the locking rack is arranged on both outer sides of the adjustment slot, and both ends of the locating pin are sleeved with the locking tooth plate engaged and locked with the locking rack, and an open retaining ring is arranged on the locating pin corresponding to the outer side of the locking tooth plate.

[0015] Preferably, a displacement scale is provided on the outer side of the outer cover shell corresponding to the adjustment notch.

[0016] Preferably, the spring load auxiliary adjustment hydraulic mechanism comprises a hydraulic telescopic column, a fixed clamping plate, a locking nut and a hydraulic device;

[0017] There are two hydraulic telescopic columns, which are symmetrically arranged at the bottom of the main spring support plate. There are two fixed clamps, which clamp and fix the two hydraulic telescopic columns through the locking nuts and are connected to the bottom of the guide tube inside the main spring. The two hydraulic telescopic columns are connected to a hydraulic machine through a hydraulic oil pipe.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The utility model can perform auxiliary hydraulic adjustment of the spring load by arranging a spring load auxiliary adjustment hydraulic mechanism, and at the same time the locking tooth plate can be quickly removed so that the constant force spring hanger can enter normal operation without manual load adjustment operation, thus saving time and effort and being convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the utility model;

[0023] Figure 4 It is a partial three-dimensional structural schematic diagram of the utility model;

[0024] Figure 5 It is a partial main structural schematic diagram of the utility model;

[0025] Figure 6 It is a cross-sectional structural schematic diagram of the utility model.

[0026] In the figure: 1, outer cover shell; 2, main spring mechanism; 201, roller assembly; 2011, roller fixing frame; 2012, roller shaft; 2013, roller; 202, main spring inner guide tube; 203, main spring; 204, main spring support plate; 205, load adjustment beam; 206, adjustment screw; 207, adjustment nut; 3, auxiliary spring mechanism; 301, auxiliary spring; 302, auxiliary spring pressure plate; 303, knife cam; 30 4. Auxiliary spring shaft; 305. Camshaft; 306. Threaded rod; 4. Locking mechanism; 401. Positioning pin; 402. Locking rack; 403. Locking tooth plate; 404. Opening retaining ring; 405. Adjustment notch; 406. Displacement scale plate; 5. Spring load auxiliary adjustment hydraulic mechanism; 501. Hydraulic telescopic column; 502. Fixed splint; 503. Locking nut; 504. Hydraulic machine; 505. Hydraulic oil pipe. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-Figure 6 The spring load auxiliary adjustment tool of the constant force spring hanger provided by the utility model comprises an outer cover shell 1, a main spring mechanism 2 and auxiliary spring mechanisms 3 arranged on both sides of the main spring mechanism 2 are arranged in the outer cover shell 1, a locking mechanism 4 is arranged on the main spring mechanism 2, and a spring load auxiliary adjustment hydraulic mechanism 5 is arranged at the lower part of the main spring mechanism 2, and the spring load auxiliary adjustment hydraulic mechanism 5 is used for hydraulically auxiliary adjustment of the spring load of the main spring mechanism 2 between the auxiliary spring mechanism 3;

[0029] The main spring mechanism 2 includes a roller assembly 201, a main spring inner guide tube 202, a main spring 203 and a main spring support plate 204; the main spring support plate 204 is arranged at the lower part of the outer cover shell 1 through a load adjustment beam 205, an adjustment screw 206 and an adjustment nut 207, the roller assembly 201 is arranged at the upper end of the main spring inner guide tube 202, the lower end of the main spring inner guide tube 202 passes through the main spring support plate 204, and the main spring inner guide tube 202 is sleeved with a roller assembly arranged on the roller assembly The main spring 203 between 201 and the main spring support plate 204, the roller assembly 201 includes a roller fixing frame 2011, a roller shaft 2012 and a roller 2013; the roller fixing frame 2011 is arranged at the upper end of the guide tube 202 in the main spring, and two roller shafts 2012 and two rollers 2013 are provided. The two rollers 2013 are symmetrically arranged on the roller fixing frame 2011 through the roller shaft 2012, and the two rollers are respectively arranged corresponding to the two auxiliary spring mechanisms 3;

[0030] The auxiliary spring mechanism 3 includes an auxiliary spring 301, an auxiliary spring pressure plate 302, a knife-shaped cam 303 and an auxiliary spring rotating shaft 304; the auxiliary spring 301 is arranged on the inner side of the outer cover shell 1, the auxiliary spring pressure plate 302 is clamped on the auxiliary spring 301, the knife-shaped cam 303 is rotatably arranged at the position corresponding to the roller 2013 in the outer cover shell 1 through the cam shaft 305, and the auxiliary spring rotating shaft 304 is arranged on the knife-shaped cam 303 and connected with the auxiliary spring pressure plate 302 through the threaded rod 306;

[0031] The locking mechanism 4 includes a positioning pin 401, a locking rack 402, a locking tooth plate 403 and an open retaining ring 404; the positioning pin 401 is arranged on the roller fixing frame 2011, and an adjustment slot 405 is arranged at a position corresponding to the positioning pin 401 on the outer cover shell 1, and both ends of the positioning pin 401 extend out of the adjustment slot 405 respectively, and both outer sides of the adjustment slot 405 are provided with a locking rack 402, and both ends of the positioning pin 401 are sleeved with a locking tooth plate 403 that meshes and locks with the locking rack 402, and an open retaining ring 404 is arranged on the outer side of the positioning pin 401 corresponding to the locking tooth plate 403, and a displacement scale plate 406 is arranged on the outer side of the outer cover shell 1 corresponding to the adjustment slot 405;

[0032] The spring load auxiliary adjustment hydraulic mechanism 5 includes a hydraulic telescopic column 501, a fixed splint 502, a locking nut 503 and a hydraulic machine 504; there are two hydraulic telescopic columns 501, and the two hydraulic telescopic columns 501 are symmetrically arranged at the bottom of the main spring support plate 204, and there are two fixed splints 502. The two fixed splints 502 clamp and fix the two hydraulic telescopic columns 501 through the locking nut 503, and are connected to the bottom of the guide tube 202 inside the main spring. The two hydraulic telescopic columns 501 are connected to a hydraulic machine 504 through a hydraulic oil pipe 505.

[0033] The utility model is provided with a spring load auxiliary adjustment hydraulic mechanism 5 at the bottom of the main spring support plate 204. When the spring load is adjusted, the spring load auxiliary adjustment hydraulic mechanism 5 is arranged at the bottom of the main spring support plate 204, and the hydraulic device 504 provides hydraulic power to the two hydraulic telescopic columns 501, and the hydraulic telescopic columns 501 extend to push the main spring support plate 204 to move upward, thereby driving the main spring 203 to compress and adjust the load, and use the adjustment nut 207 to move on the adjustment screw 206 to abut and fix the main spring support plate 204 and the adjustment screw 206, so as to complete the load adjustment of the main spring 203;

[0034] When the locking tooth plate 403 needs to be removed, the constant force spring hanger can enter normal operation. An adjusting nut 207 is threadedly connected to the upper end of the main spring support plate 204 on the adjusting screw 206. The hydraulic power is provided to the two hydraulic telescopic columns 501 through the hydraulic device 504. The hydraulic telescopic columns 501 extend to push the entire main spring mechanism 2 upward, so that the locking tooth plate 403 on the positioning pin 401 is in contact with the locking rack 402 and is in a meshing and fastening state. Then the locking tooth plate 403 and the opening retaining ring 404 can be removed, and the constant force spring hanger can enter normal operation.

[0035] The utility model can assist in hydraulic adjustment of the spring load by setting a spring load auxiliary adjustment hydraulic mechanism 5, and can quickly remove the locking tooth plate 403, so that the constant force spring hanger can enter normal operation without manual load adjustment operation, which saves time and effort and is convenient to use.

[0036] In summary, the method for using the spring load auxiliary adjustment tooling of the constant force spring hanger provided in this embodiment is as follows: when the spring load is adjusted, the spring load auxiliary adjustment hydraulic mechanism 5 is set at the bottom of the main spring support plate 204, and the hydraulic device 504 provides hydraulic power to the two hydraulic telescopic columns 501, and the hydraulic telescopic columns 501 extend to push the main spring support plate 204 to move upward, thereby driving the main spring 203 to compress and adjust the load, and use the adjustment nut 207 to move the thread on the adjustment screw 206, so that the main spring support plate 204 and the adjustment screw 206 are abutted and fixed, and the load adjustment of the main spring 203 is completed;

[0037] When it is necessary to remove the locking tooth plate 403, the constant force spring hanger can enter normal operation. An adjusting nut 207 is threadedly connected to the upper end of the main spring support plate 204 on the adjusting screw 206. The hydraulic power is provided to the two hydraulic telescopic columns 501 through the hydraulic device 504. The hydraulic telescopic columns 501 extend, pushing the entire main spring mechanism 2 to move upward, thereby making the locking tooth plate 403 on the locating pin 401 contact and engage with the locking rack 402 to form a tight state. Then the locking tooth plate 403 and the opening retaining ring 404 can be removed, and the constant force spring hanger can enter normal operation.

[0038] Although the 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. A spring load auxiliary adjustment tool for a constant force spring hanger, characterized in that: The invention comprises an outer cover shell (1), wherein a main spring mechanism (2) and auxiliary spring mechanisms (3) arranged on both sides of the main spring mechanism (2) are arranged in the outer cover shell (1), a locking mechanism (4) is arranged on the main spring mechanism (2), and a spring load auxiliary adjustment hydraulic mechanism (5) is arranged at the lower part of the main spring mechanism (2), and the spring load auxiliary adjustment hydraulic mechanism (5) is used for hydraulically auxiliary adjustment of the spring load between the main spring mechanism (2) and the auxiliary spring mechanism (3).

2. The spring load auxiliary adjustment tool for a constant force spring hanger according to claim 1, characterized in that: The main spring mechanism (2) comprises a roller assembly (201), a main spring inner guide tube (202), a main spring (203) and a main spring support plate (204); The main spring support plate (204) is arranged at the lower part of the outer cover shell (1) through a load adjustment beam (205), an adjustment screw (206) and an adjustment nut (207); the roller assembly (201) is arranged at the upper end of the main spring inner guide tube (202); the lower end of the main spring inner guide tube (202) passes through the main spring support plate (204); and the main spring (203) arranged between the roller assembly (201) and the main spring support plate (204) is sleeved on the main spring inner guide tube (202).

3. The spring load auxiliary adjustment tool for a constant force spring hanger according to claim 2, characterized in that: The roller assembly (201) comprises a roller fixing frame (2011), a roller shaft (2012) and a roller (2013); The roller fixing frame (2011) is arranged at the upper end of the guide tube (202) inside the main spring, and two roller shafts (2012) and two rollers (2013) are each provided, and the two rollers (2013) are symmetrically arranged on the roller fixing frame (2011) via the roller shafts (2012), and the two rollers are respectively arranged corresponding to the two auxiliary spring mechanisms (3).

4. The spring load auxiliary adjustment tool for a constant force spring hanger according to claim 3, characterized in that: The auxiliary spring mechanism (3) comprises an auxiliary spring (301), an auxiliary spring pressure plate (302), a knife-shaped cam (303) and an auxiliary spring rotating shaft (304); The auxiliary spring (301) is arranged on the inner side of the outer cover shell (1); the auxiliary spring pressure plate (302) is clamped on the auxiliary spring (301); the knife-shaped cam (303) is rotatably arranged at a position corresponding to the roller (2013) in the outer cover shell (1) via a camshaft (305); and the auxiliary spring rotating shaft (304) is arranged on the knife-shaped cam (303) and connected to the auxiliary spring pressure plate (302) via a threaded rod (306).

5. The spring load auxiliary adjustment tool for a constant force spring hanger according to claim 3, characterized in that: The locking mechanism (4) comprises a positioning pin (401), a locking rack (402), a locking tooth plate (403) and an opening retaining ring (404); The positioning pin (401) is arranged on the roller fixing frame (2011); an adjustment slot (405) is arranged on the outer cover shell (1) at a position corresponding to the positioning pin (401); two ends of the positioning pin (401) respectively extend out of the adjustment slot (405); the locking rack (402) is arranged on both outer sides of the adjustment slot (405); the locking tooth plate (403) meshing and locking with the locking rack (402) is sleeved on both ends of the positioning pin (401); and an open retaining ring (404) is arranged on the positioning pin (401) on the outer side corresponding to the locking tooth plate (403).

6. The spring load auxiliary adjustment tool for a constant force spring hanger according to claim 5, characterized in that: A displacement scale plate (406) is provided on the outer side of the outer cover shell (1) corresponding to the adjustment notch (405).

7. The spring load auxiliary adjustment tool for a constant force spring hanger according to claim 2, characterized in that: The spring load auxiliary adjustment hydraulic mechanism (5) comprises a hydraulic telescopic column (501), a fixing clamp (502), a locking nut (503) and a hydraulic device (504); Two hydraulic telescopic columns (501) are provided, and the two hydraulic telescopic columns (501) are symmetrically arranged at the bottom of the main spring support plate (204). Two fixing clamps (502) are provided, and the two fixing clamps (502) clamp and fix the two hydraulic telescopic columns (501) through the locking nuts (503) and are connected to the bottom of the main spring inner guide tube (202). The two hydraulic telescopic columns (501) are connected to a hydraulic device (504) through a hydraulic oil pipe (505).

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