CN108709018A - A kind of compact constant supporting spring hanger - Google Patents

Abstract

A compact constant force hanger. It relates to the field of support and hangers, in particular to the improvement of the constant force support and hangers. A compact constant force hanger with compact structure, good stability and long service life, which can be easily installed in areas with small lateral space is proposed. It includes a shell, a load plate, a main spring and a main spring plate, the load plate is set above the shell, the main spring plate is detachably connected to the bottom of the shell, and the main spring is vertically arranged on the shell middle, and the bottom end of the main spring is against the main spring plate; the main spring is also provided with an inner main spring, and the main spring is empty of the inner main spring, and the inner main spring is against the sliding frame and the main spring between spring plates. The present invention has the advantages of compact structure, good stability, small lateral space, stable constant force support and the like as a whole.

Description

A compact constant force hanger

technical field

The invention relates to the field of hangers, in particular to the improvement of the hangers with constant force.

Background technique

The constant force support and hanger is designed according to the principle of moment balance. Under the allowable load displacement, the load moment and spring moment are always in balance, so that when the pipeline or equipment is displaced, it can provide a constant supporting force to avoid damage to the pipeline or equipment. bring additional stress. Most of the constant-force hangers in the prior art are as shown in a Chinese patent titled "A Constant-force Spring Support" and the application number "201521057091.9" announced by the National Bureau on June 8, 2016. When this type of support and hanger is used, the secondary spring is usually used to balance the spring force generated when the main spring is compressed.

However, people have found in actual use that due to the design of the two auxiliary springs, this type of support and hanger needs to occupy a large space in the lateral direction, so it cannot be arranged in an area with a small lateral space. The installation and layout of the hanger brought great trouble.

Contents of the invention

Aiming at the above problems, the present invention proposes a compact constant-force support and hanger that is compact in structure, good in stability and long in service life, and can be easily installed in areas with small lateral spaces.

The technical solution of the present invention is: comprising a shell, a load plate, a main spring and a main spring plate, the load plate is arranged above the shell, the main spring plate is detachably connected to the bottom of the shell, the main spring The spring is vertically arranged in the housing, and the bottom end of the main spring is against the main spring plate; it is characterized in that,

The support and hanger also includes a support tube group, a sliding frame, a secondary spring, a pair of connecting components and a pair of arc-shaped protrusions;

The sliding frame is accommodated in the housing, the top of the main spring is against the bottom surface of the sliding frame, the load plate is connected with the sliding frame through the supporting tube group, and at least two vertical shafts are provided on the housing. There are elongated sliding holes arranged vertically, and two rotating shafts are symmetrically fixedly connected to both sides of the bottom surface of the sliding frame, and the ends of the rotating shafts are slidably connected in the elongated sliding holes;

The connecting assembly includes a connecting rod, a hinge seat, a hinge shaft and a roller. The secondary spring is arranged horizontally and accommodated in a sliding frame. The two hinge seats are respectively fixedly connected to the two ends of the secondary spring, and the hinge shaft is fixedly connected to On the hinged seat, the two ends of the connecting rod are respectively hinged to the rotating shaft and the hinged shaft, and the roller is sleeved in the middle of the hinged shaft;

The two arc-shaped protrusions are respectively arranged on both sides of the auxiliary spring, and are detachably connected with the inner wall of the housing. , the roller abuts against the surface of the arc-shaped bump.

The arc-shaped protrusion is detachably connected to the housing through a pair of outer bolts, a pair of outer nuts, a pair of inner bolts, and a pair of inner nuts;

A pair of outer bolts are arranged symmetrically on the upper and lower sides of the arc-shaped projection. The outer bolts pass through the housing and abut against the surface of the arc-shaped projection facing away from the auxiliary spring. The nut is fixedly connected to the shell and socketed on the outer bolt, and the outer bolt and the outer nut are matched;

One end of a pair of inner bolts is fixedly connected in the arc-shaped protrusion, and the other end passes out of the housing. The inner nut is sleeved on the inner bolt and attached to the outer wall of the housing. Inner bolts and inner nuts are compatible.

The support tube group includes four support tubes and four threaded tubes, the middle part of the threaded tubes passes through the housing, and its bottom end is fixedly connected to the sliding frame, and the four threaded tubes are distributed in the same quadrangle On the four top corners of the threaded pipe, the support pipe is threaded through the threaded pipe and connected with the threaded pipe. The top end of the support pipe protrudes above the threaded pipe and is rotatably connected to the load plate on the bottom surface.

There are four strip-shaped sliding holes, two of which are arranged symmetrically on both sides of the housing, and the two ends of the rotating shaft are respectively set in the two strip-shaped sliding holes.

An inner main spring is also arranged in the main spring, and the main spring is empty of the inner main spring, and the inner main spring is against between the sliding frame and the main spring plate.

An inner auxiliary spring is also arranged in the auxiliary spring, the inner auxiliary spring is empty, and the inner auxiliary spring is fixedly connected between the two hinge seats.

In the present invention, since the auxiliary spring is substantially above the main spring, rather than on both sides thereof, the overall size of the support and hanger in the transverse direction will be significantly reduced, so that the support and hanger can maintain a stable constant force support. Only a small horizontal space is needed for the arrangement, which effectively solves the problem that the prior art cannot be arranged in an area with a small horizontal space, which brings great trouble to the installation and arrangement of the constant force support and hanger. On the whole, it has the advantages of compact structure, good stability, small lateral space and stable constant force support.

In addition, since the arc-shaped protrusions are detachably connected to the housing, the initial spring force of the auxiliary spring can be adjusted by adjusting the distance between the two arc-shaped protrusions, that is, the initial upward force component of the auxiliary spring can be adjusted. Therefore, the initial force of the whole support and hanger is finally adjusted.

Description of drawings

Fig. 1 is the structural representation of this case,

Figure 2 is a left side view of Figure 1,

Fig. 3 is a sectional view taken along line A-A of Fig. 2 ,

Figure 4 is a perspective view of Figure 1,

Fig. 5 is a perspective view after removing part of the shell in this case,

Fig. 6 is a perspective view after removing the housing in this case;

In the figure, 1 is the shell, 10 is the long sliding hole, 11 is the outer bolt, 12 is the outer nut, 13 is the inner bolt, 14 is the inner nut, 2 is the load plate, 3 is the main spring, 4 is the main spring plate , 5 is a support tube group, 51 is a support tube, 52 is a threaded tube, 6 is a sliding frame, 60 is a rotating shaft, 7 is an auxiliary spring, 8 is a connecting assembly, 81 is a connecting rod, 82 is a hinge seat, and 83 is a hinge shaft , 84 is a roller, and 9 is an arc projection.

Detailed ways

As shown in Figures 1-6, the present invention includes a housing 1, a load plate 2, a main spring 3 and a main spring plate 4, the load plate 2 is arranged above the housing 1, and the main spring plate 4 is detachable Connected below the housing 1, the main spring 3 is vertically arranged in the housing 1, and the bottom end of the main spring 3 is against the main spring plate 4; (here is a conventional technology in the prior art, including The detachable connection of the main spring plate to the housing, etc., therefore, no more details in this case)

The support and hanger also includes a support tube group 5, a sliding frame 6, a secondary spring 7, a pair of connecting components 8 and a pair of arc-shaped protrusions 9;

The sliding frame 6 is accommodated in the housing 1, the top of the main spring 3 is against the bottom surface of the sliding frame 6, the load plate 2 is connected to the sliding frame 6 through the support tube group 5, and the housing 1 is provided with at least two vertically arranged elongated sliding holes 10, and the two sides of the bottom surface of the sliding frame 6 are also symmetrically fixedly connected with two rotating shafts 60, and the ends of the rotating shafts 60 are slidably connected to the elongated In the sliding hole 10;

The connecting assembly 8 includes a connecting rod 81, a hinged seat 82, a hinged shaft 83 and a roller 84. The secondary spring 7 is arranged horizontally and accommodated in the sliding frame 6. The two hinged seats 82 are fixedly connected to the secondary spring 7 respectively. Both ends, the hinged shaft 83 is fixedly connected to the hinged seat 82, the two ends of the connecting rod 81 are respectively hinged to the rotating shaft 60 and the hinged shaft 83, and the roller 84 is sleeved in the middle of the hinged shaft 83;

The two arc-shaped projections 9 are respectively arranged on both sides of the auxiliary spring 7 and are detachably connected with the inner wall of the housing 1. The side protruding arc, the roller 84 abuts on the surface of the arc protrusion 9 . In this way, when the sliding frame, the secondary spring and the rollers on both sides are moving downward, because the spring force of the secondary spring first becomes larger and then becomes smaller, and is affected by the surface shape of the arc-shaped bump, the secondary spring has a greater impact on the bump. The angle between the acting force and the vertical direction will first become larger, and then become smaller after reaching 90°. Therefore, the upward component force generated on the secondary spring will gradually become smaller, and after crossing the midpoint of the arc-shaped bump It becomes a negative number, so after combining with the increasing spring force after the compression of the main spring, finally, a constant support force is reflected on the load plate to realize the original intention of constant force, so that the distance between the two arc-shaped protrusions is fixed. , no matter which height dimension the sliding frame is in (the rollers need to keep in contact with the surface of the arc-shaped bump), the load plate can be subjected to a constant upward force.

Wherein, since the auxiliary spring is substantially above the main spring, rather than on both sides thereof, the overall size of the support and hanger in the transverse direction will be significantly reduced, so that the support and hanger can maintain a stable constant force support. Only a small horizontal space is needed for the arrangement, which effectively solves the problem that the prior art cannot be arranged in an area with a small horizontal space, which brings great trouble to the installation and arrangement of the constant force support and hanger. On the whole, it has the advantages of compact structure, good stability, small lateral space and stable constant force support.

In addition, since the arc-shaped protrusions are detachably connected to the housing, the initial spring force of the auxiliary spring can be adjusted by adjusting the distance between the two arc-shaped protrusions, that is, the initial upward force component of the auxiliary spring can be adjusted. Therefore, the initial force of the whole support and hanger is finally adjusted.

The arc-shaped protrusion 9 is detachably connected with the housing 1 through a pair of outer bolts 11, a pair of outer nuts 12, a pair of inner bolts 13, and a pair of inner nuts 14;

A pair of outer bolts 11 are symmetrically arranged on the upper and lower sides of the arc-shaped protrusion 9, and the outer bolts 11 pass through the housing 1 and abut against the side of the arc-shaped protrusion 9 facing away from the secondary spring 7. On the surface, the outer nut 12 is fixedly connected to the housing 1 and socketed with the outer bolt 11, and the outer bolt 11 and the outer nut 12 are matched;

One end of a pair of inner bolts 13 is fixedly connected in the arc-shaped protrusion 9, and the other end passes out of the housing 1, and the inner nut 14 is sleeved on the inner bolts 13 and attached to the housing. 1, the inner bolts 13 and inner nuts 14 are matched. When in use, the inner nut can be rotated outward first, so that the arc-shaped protrusion and the housing can move relative to each other; then the outer bolt can be rotated inward, so that the arc-shaped protrusion is lifted up to move inward, and finally, it can be rotated inward The inner nut locks the arc-shaped bump; on the contrary, since the arc-shaped bump is always under the influence of the restoring force of the secondary spring, the outer bolt can be rotated outwards first, and then the inner nut can be rotated inward to make the arc The lugs move outward and lock when in place. This type of detachable structure has the advantages of convenient adjustment, high adjustment efficiency, and good structural stability after adjustment.

The support tube group 5 includes four support tubes 51 and four threaded tubes 52, the middle part of the threaded tubes 52 passes through the housing 1, and its bottom end is fixedly connected to the sliding frame 6, and the four The threaded pipe 52 is distributed on the four corners of the same quadrilateral. The support pipe 51 is threaded through the threaded pipe 52 and connected with the threaded pipe 52. The top end of the support pipe 51 extends to the threaded pipe. The top of the pipe 52 is rotatably connected to the bottom surface of the load plate 1 . In this way, through the cooperation of four support tubes and at least two elongated sliding holes, the load plate can maintain a high degree of linearity when moving, so that this case can effectively adapt to the environment with large partial load force, and has the overall structural stability The advantages of good performance and high reliability.

There are four strip-shaped sliding holes, two of which are arranged symmetrically on both sides of the housing, and the two ends of the rotating shaft are respectively set in the two strip-shaped sliding holes. Therefore, the case is more convenient and efficient when processing the shell, and has better stability after assembly and use.

An inner main spring is also arranged in the main spring, the main spring is empty to cover the inner main spring, and the inner main spring is against between the sliding frame and the main spring plate.

An inner auxiliary spring is also arranged in the auxiliary spring, the inner auxiliary spring is empty, and the inner auxiliary spring is fixedly connected between the two hinge seats.

Claims (6)

1. a kind of compact constant supporting spring hanger, including shell, loading plate, main spring and main spring plate, the loading plate are located at shell The top of body, the main spring plate are removably attachable to the lower section of shell, and the main spring is vertically arranged in the housing and main The bottom end of spring is against on main spring plate；It is characterized in that,

The suspension and support further includes support tube group, slider box, auxiliary spring, a pair of of connection component and a pair of of arc bump；

The slider box is placed in shell, and the top of the main spring is against on the bottom surface of slider box, and the loading plate passes through Support tube group is connected with slider box, and at least a two strip slide openings being vertically arranged, the sliding are offered on the shell The both sides of frame bottom surface are also symmetrically fixedly connected with two shafts, and the end point of the shaft is slidably connected in strip slide opening；

The connection component includes connecting rod, hinged seat, articulated shaft and idler wheel, and the auxiliary spring is horizontally disposed and is placed in sliding In frame, two hinged seats are respectively fixedly connected at the both ends of auxiliary spring, and the articulated shaft is fixedly connected on hinged seat, the connecting rod Both ends be respectively articulated with the shaft and the articulated shaft, the idler wheel is set in the middle part of articulated shaft；

Two arc bumps set up separately in the both sides of auxiliary spring and are removably connected with the inner wall of shell, and the arc is convex Block is against the surface of arc bump towards the arc that the end face of auxiliary spring is in towards auxiliary spring side protrusion, the idler wheel On.

2. a kind of compact constant supporting spring hanger according to claim 1, which is characterized in that the arc bump passes through a pair Outer bolt, a pair of of outer nut, a pair of of inner bolt, a pair of of inner nut are removably connected with shell；

A pair of outer bolt is symmetrically arranged in the both sides up and down of arc bump, and the outer bolt wears the shell and supports On surface of the arc bump backwards to auxiliary spring, the outer nut is fixedly connected on shell and is socketed the outer bolt, The outer bolt and outer nut are adapted；

One end of a pair of inner bolt is fixedly connected in arc bump and the other end is pierced by outside shell, the interior spiral shell Mother set connects the inner bolt and fits on the outer wall of shell, and the inner bolt and inner nut are adapted.

3. a kind of compact constant supporting spring hanger according to claim 1, which is characterized in that the support tube group includes four Support tube and four screwed pipes wear the shell in the middle part of the screwed pipe and its bottom end are fixedly connected in slider box, and four A screwed pipe distribution is again on four apex angles of same quadrangle, and the support tube is threaded through in the screwed pipe and and spiral shell Line pipe is connected by screw thread, and the top of the support tube extend out to above screwed pipe and is rotatably attached to loading plate On bottom surface.

4. a kind of compact constant supporting spring hanger according to claim 1, which is characterized in that the strip slide opening has four A, the strip slide opening is symmetrically arranged in the both sides of shell two-by-two, and the both ends of the shaft are threaded through two length respectively In bar shaped slide opening.

5. a kind of compact constant supporting spring hanger according to claim 1, which is characterized in that in being additionally provided in the main spring Main spring, interior main spring described in the main spring empty set, the interior main spring are against between slider box and main spring plate.

6. a kind of compact constant supporting spring hanger according to claim 1, which is characterized in that in being additionally provided in the auxiliary spring Auxiliary spring, interior auxiliary spring described in the auxiliary spring empty set, the interior auxiliary spring are fixedly connected between two hinged seats.