Constant-force spring support

Abstract

The utility model discloses a constant-force spring support which comprises a flat type constant-force spring hanging bracket and a bearing platform assembly. The flat type constant force spring hanger comprises an outer frame plate assembly and an indicating shaft. The bearing platform assembly comprises a top plate and two sets of stress adjusting structures arranged on the top plate and located on the two sides of the outer frame plate assembly correspondingly. The stress adjusting structure is composed of a bearing plate, a locking plate and limiting plates, the bearing plate is arranged between the two limiting plates and makes contact with the indicating shaft, and the locking plate is connected with the outer frame plate assembly through a locking screw. The flat type constant-force spring hanger is modified on the basis of an existing flat type constant-force spring hanger, the bearing platform assembly and the guide mechanism are additionally arranged, the original constant-force performance is met, meanwhile, the vertical installation space is greatly reduced, and the structure is simple and stable.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline support and suspension devices, in particular to a constant force spring bracket. Background Art

[0002] Constant force spring supports are very important functional parts in the pipeline support system. They are often installed in locations where the vertical displacement of the pipeline is large or where load transfer needs to be limited. They play the role of supporting the pipeline or equipment, that is, when the pipeline or equipment is displaced, they provide a constant supporting force, thereby reducing or even eliminating the additional stress on the pipeline or equipment. However, whether it is the latest standard constant force spring support series or the main and auxiliary spring series products, the supporting products require a large installation space at the bottom of the pipeline, and the existing products cannot meet the installation and use requirements of small spaces. Summary of the invention

[0003] To solve the above technical problems, the utility model provides a constant force spring bracket. In order to have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. This summary is not a general review, nor is it intended to identify key, important components or describe the scope of protection of these embodiments. Its only purpose is to present some concepts in a simple form as a preface to the detailed description that follows.

[0004] The utility model adopts the following technical solutions:

[0005] In some optional embodiments, a constant force spring bracket is provided, comprising: a flat constant force spring hanger, the flat constant force spring hanger comprising: an outer frame plate assembly and an indicating shaft; and further comprising: a bearing platform assembly, the bearing platform assembly being arranged on the outer frame plate assembly;

[0006] The bearing platform assembly includes: a top plate for bearing the pipeline and two sets of adjustable force-bearing structures arranged on the top plate and respectively located on both sides of the outer frame plate assembly; the adjustable force-bearing structure consists of a bearing plate, a locking plate and two limit plates, the bearing plate is arranged between the two limit plates and in contact with the indicating shaft, and the locking plate is arranged at the bottom of the limit plate and connected to the outer frame plate assembly through a locking screw.

[0007] Among them, the outer frame plate assembly includes: two symmetrically arranged L-shaped plates; a locking screw is arranged on the horizontal plate of the L-shaped plate, and two locking nuts are arranged on the locking screw; a through hole is opened on the locking plate, and the locking screw passes through the through hole, and the two locking nuts are respectively located on the upper and lower sides of the locking plate and fix the locking plate to the rod body of the locking screw.

[0008] Among them, a guide mechanism is arranged on the outer side surface of the vertical plate of the L-shaped plate; the guide mechanism includes: two guide triangles arranged in parallel, and a plurality of first guide columns are arranged on the side facing each other of the two guide triangles, and the first guide columns are staggered to form a guide channel; the limit plate is located in the guide channel.

[0009] Wherein, the guide mechanism further includes: two groups of limiting columns, and each group of limiting columns is composed of two second guide columns, and the two second guide columns are respectively arranged on the upper and lower sides of the guide triangle.

[0010] Wherein, the bearing platform assembly further includes: a reinforcing plate; the top of the reinforcing plate is connected to the lower surface of the top plate, and the two end portions of the reinforcing plate are connected to the two limiting plates.

[0011] The bearing plate and the locking plate are spaced a certain distance apart to form a hollow groove, and the indicating shaft extends out of the hollow groove and contacts the bottom of the bearing plate.

[0012] Wherein, a composite thrust washer and a sleeve are arranged on the indicating shaft, a composite bearing is arranged between the sleeve and the indicating shaft, the composite thrust washer is arranged on the inner side of the sleeve, and a shaft retaining ring and a washer are arranged on the outer side of the sleeve.

[0013] Wherein, rolling bearings are arranged on the first guide column and the second guide column.

[0014] The beneficial effects brought by the utility model are as follows: on the basis of the existing flat constant force spring hanger, it is modified to add a bearing platform component and a guide mechanism, which greatly reduces the vertical installation space while meeting the original constant force performance, and has a simple and stable structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a structural schematic diagram of a constant force spring bracket of the utility model;

[0017] Figure 2 It is a structural schematic diagram of a constant force spring bracket of the utility model when the indicating shaft is locked in a low position;

[0018] Figure 3It is a structural schematic diagram of a constant force spring bracket of the utility model when the indicating shaft is locked in a high position;

[0019] Figure 4 It is a side structural schematic diagram of the load-bearing platform assembly of the utility model;

[0020] Figure 5 It is a front structural schematic diagram of the load-bearing platform assembly of the utility model;

[0021] Figure 6 It is a structural schematic diagram of the guide triangle plate of the utility model;

[0022] Figure 7 It is a schematic diagram of the position relationship between the indicating shaft and the bearing plate of the utility model. DETAILED DESCRIPTION

[0023] The following is a detailed description of the embodiments of the utility model in conjunction with the accompanying drawings. It should be clear that the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0024] like Figure 1-7 As shown, in some illustrative embodiments, a constant force spring bracket is provided, including: a flat constant force spring hanger and a load-bearing platform assembly, wherein the main structure of the flat constant force spring hanger can adopt the existing structure, and this embodiment adds a guide mechanism on the basis of the existing flat constant force spring hanger to limit the load-bearing platform assembly to only move up and down.

[0025] The flat constant force spring hanger comprises: an indicating shaft 1, an outer frame plate assembly, a main shaft 2, and a rotating frame assembly 3.

[0026] The bearing platform assembly is arranged on the outer frame plate assembly, wherein the outer frame plate assembly comprises: two symmetrically arranged L-shaped plates 4 , and the revolving frame assembly 3 is arranged between the two L-shaped plates 4 .

[0027] The bearing platform assembly includes: a top plate 5, a reinforcing plate 6 and two sets of adjustable force-bearing structures. The top plate 5 is used to bear the pipeline, that is, the pipeline is installed above the top plate 5. The two sets of adjustable force-bearing structures are arranged in parallel on the lower surface of the top plate 5, and the two sets of adjustable force-bearing structures are respectively located on both sides of the outer frame plate assembly, that is, one adjustable force-bearing structure corresponds to one L-shaped plate 4. The adjustable force-bearing structure is composed of a bearing plate 7, a locking plate 8 and two limit plates 9; the top end of the limit plate 9 is connected to the top plate 5, the bottom end of the limit plate 9 is connected to the locking plate 8, the bearing plate 7 is arranged between the two limit plates 9 and contacts with the indicating shaft 1, and the locking plate 8 is arranged at the bottom of the limit plate 9 and connected to the outer frame plate assembly through the locking screw 403.

[0028] The locking screw 403 is arranged on the upper surface of the horizontal plate 401 of the L-shaped plate, and two locking nuts 404 are arranged on the locking screw 403. The locking nuts 404 are used in conjunction with the threads of the locking screw 403, that is, the position of the locking nuts 404 on the locking screw 403 can be adjusted by rotating the locking nuts 404. A through hole is provided on the locking plate 8, and the locking screw 403 passes through the through hole. The two locking nuts 404 on the locking screw 403 are respectively located at the upper and lower sides of the locking plate 8 to limit the position of the locking plate 8, that is, to fix the locking plate 8 on the rod of the locking screw 403, that is, the position between the two locking nuts 404.

[0029] The position of the locking nut 404 can be adjusted by rotating the locking nut 404, thereby adjusting the height of the locking plate 8. The above structural design not only allows the bearing platform assembly to be stably mounted on the outer frame assembly and used in conjunction with the flat constant force spring hanger, but also allows the height of the outer frame assembly to be adjusted according to actual conditions to adapt to different vertical installation spaces. The load of the pipeline acts on the indicator shaft 1 through the bearing plate 7, and the indicator shaft 1 is finally transmitted to the spring through the revolving frame assembly 3. The existing flat constant force spring hanger is modified to add a bearing platform assembly and a guide mechanism. While meeting the original constant force performance, the vertical installation space is greatly reduced, and the structure is simple and stable.

[0030] In order to improve the strength of the adjustable force-bearing structure and prevent it from being deformed under pressure, this embodiment adds a reinforcing plate 6 to the two groups of adjustable force-bearing structures. The top of the reinforcing plate 6 is connected to the lower surface of the top plate 5, and the two end portions of the reinforcing plate 6 are connected to two limit plates 9.

[0031] A guide mechanism is provided on the outer side of the vertical plate 402 of the L-shaped plate, and the guide mechanism is used to restrict the load-bearing platform assembly to move only up and down. The guide mechanism includes: two guide triangle plates 10 arranged in parallel.

[0032] A plurality of first guide posts 11 are arranged on the side facing each other of the two guide triangles 10. The first guide posts 11 are staggered to form a guide channel 12. The limit plate 9 is located in the guide channel 12 so that the limit plate 9 can only move up and down along the guide channel 12. There are three first guide posts 11, and the staggered arrangement means that two of the first guide posts 11 are arranged on the side of the guide triangle 10 close to the vertical plate 402 of the L-shaped plate, and the other first guide post 11 is arranged on the side of the guide triangle 10 away from the vertical plate 402 of the L-shaped plate.

[0033] The guide mechanism also includes: two groups of limit columns, and each group of limit columns is composed of two second guide columns 13, and the two second guide columns 13 are respectively arranged on the upper and lower sides of the guide triangle 10. The two groups of limit columns further ensure the strength of the guide mechanism to prevent the load-bearing platform assembly from being displaced by force. Furthermore, rolling bearings are arranged on the first guide column 11 and the second guide column 13, and the friction force is further reduced by installing the rolling bearings to reduce the influence of the friction force on the constant force performance.

[0034] The bearing plate 7 and the locking plate 8 are spaced a certain distance apart to form a hollow groove 78, and the indicating shaft 1 extends out of the hollow groove 78 and contacts the bottom of the bearing plate 7. A composite thrust washer 101 and a sleeve 102 are arranged on the indicating shaft 1, a composite bearing 103 is arranged between the sleeve 102 and the indicating shaft 1, the composite thrust washer 101 is arranged on the inner side of the sleeve 102, and a shaft retaining ring 104 and a washer 105 are arranged on the outer side of the sleeve 102. The composite bearing 103 and the composite thrust washer 101 can reduce friction.

[0035] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A constant force spring support, comprising: A flat constant force spring hanger, comprising: an outer frame plate assembly and an indicating shaft; characterized in that it also comprises: a bearing platform assembly, wherein the bearing platform assembly is arranged on the outer frame plate assembly; The bearing platform assembly includes: a top plate for bearing the pipeline and two sets of adjustable force-bearing structures arranged on the top plate and respectively located on both sides of the outer frame plate assembly; the adjustable force-bearing structure consists of a bearing plate, a locking plate and two limit plates, the bearing plate is arranged between the two limit plates and in contact with the indicating shaft, and the locking plate is arranged at the bottom of the limit plate and connected to the outer frame plate assembly through a locking screw.

2. A constant force spring support according to claim 1, characterized in that: The outer frame plate assembly includes: two symmetrically arranged L-shaped plates; a locking screw is arranged on the horizontal plate of the L-shaped plate, and two locking nuts are arranged on the locking screw; a through hole is opened on the locking plate, and the locking screw passes through the through hole, and the two locking nuts are respectively located on the upper and lower sides of the locking plate and fix the locking plate to the rod body of the locking screw.

3. A constant force spring support according to claim 2, characterized in that: A guide mechanism is arranged on the outer side surface of the vertical plate of the L-shaped plate; the guide mechanism comprises: two guide triangles arranged in parallel, and a plurality of first guide columns are arranged on the side facing each other of the two guide triangles, and the first guide columns are arranged in an alternating manner to form a guide channel; the limit plate is located in the guide channel.

4. A constant force spring support according to claim 3, characterized in that: The guide mechanism further comprises: two groups of limiting columns, and each group of limiting columns is composed of two second guide columns, and the two second guide columns are respectively arranged on the upper and lower sides of the guide triangle.

5. A constant force spring support according to claim 4, characterized in that: The bearing platform assembly further includes: a reinforcing plate; the top of the reinforcing plate is connected to the lower surface of the top plate, and the two end portions of the reinforcing plate are connected to the two limiting plates.

6. A constant force spring support according to claim 5, characterized in that: The carrying plate and the locking plate are spaced a certain distance apart to form a hollow groove, and the indicating shaft extends out of the hollow groove and contacts with the bottom of the carrying plate.

7. A constant force spring support according to claim 6, characterized in that: A composite thrust washer and a shaft sleeve are arranged on the indicating shaft, a composite bearing is arranged between the shaft sleeve and the indicating shaft, the composite thrust washer is arranged on the inner side of the shaft sleeve, and a shaft retaining ring and a washer are arranged on the outer side of the shaft sleeve.

8. A constant force spring support according to claim 7, characterized in that: The first guide column and the second guide column are both provided with rolling bearings.

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