CN111853040A

CN111853040A - Butterfly spring pad

Info

Publication number: CN111853040A
Application number: CN202010642615.XA
Authority: CN
Inventors: 吴庆祝; 姜超
Original assignee: Individual
Current assignee: Wenzhou Tianli Spring Co ltd
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2020-10-30
Anticipated expiration: 2040-07-06
Also published as: CN111853040B

Abstract

The invention relates to the field of spring cushions, in particular to a butterfly spring cushion which comprises a spring cushion body, a limiting structure, a limiting sleeve, a sliding groove, a spring piece, a sliding block and a fixing structure. The limiting sleeve is arranged in the hole in the middle of the disc-shaped spring pad, so that the screw is positioned in the center of the disc-shaped spring pad when the screw is fixed by the connecting piece through the disc-shaped spring pad, the disc-shaped spring pad can be effectively ensured to exert the best elastic effect, meanwhile, the spring piece is arranged in the limiting sleeve, the screw can be always positioned in the middle of the disc-shaped spring piece by the limiting sleeve, the sliding groove is formed in the inner side of the limiting sleeve, the limiting sleeve is matched with the four sliding blocks arranged on the side wall of the round hole in the top end of the spring pad body, the spring pad and the limiting sleeve cannot relatively rotate, the relative displacement possibly generated between the limiting sleeve and the spring pad is further avoided, and for the condition that a plurality of disc-shaped spring pads are used in parallel connection or in series connection, the limiting sleeve.

Description

Butterfly spring pad

Technical Field

The invention relates to the field of spring cushions, in particular to a butterfly spring cushion.

Background

The disk spring is in a conical disk shape, can be used singly or in series or in parallel, bears static or dynamic loads acting along the axial direction at the upper inner edge and the lower outer edge, is compressed to generate deformation until being flattened, and is used as a live load in a stored energy mode. When necessary, automatically converts into additional compression load required by sealing, so as to reduce the continuous requirement of tightening in the use of gaskets and packing. The disc spring is a special spring which is conical in the axial direction and bears load, certain potential energy is stored after the disc spring bears load deformation, and when the bolt is loosened, the disc spring releases partial potential energy to keep the pressure between the flange connections to meet the sealing requirement. The stress distribution of the disc spring is uniformly decreased from inside to outside, and the effect of low stroke and high compensation force can be realized.

However, in practical use of the traditional disc spring piece, due to the fact that the diameters of the screw rod and the hollow hole in the middle of the disc spring piece are different, the disc spring piece can deviate when the screw rod is screwed down, and particularly when a plurality of disc spring pieces are used in parallel or in series, the connection strength can be affected.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a butterfly spring cushion.

The technical scheme adopted by the invention for solving the technical problems is as follows: a butterfly spring pad comprises a spring pad body, wherein a limiting structure is arranged in the middle of the spring pad body and comprises a limiting sleeve, sliding grooves, spring pieces and sliding blocks, the limiting sleeve is of a cylindrical tubular structure, four sliding grooves are sequentially formed in the side face of the limiting sleeve at equal intervals, the diameter of the limiting sleeve is equal to the diameter of an inner ring of the spring pad body, the limiting sleeve is in sliding connection with the spring pad body, four sliding blocks are arranged on the side face of the inner ring of the spring pad body and correspond to the four sliding grooves, the four sliding blocks are in sliding connection with the spring pad body through the four sliding grooves, a thread structure is arranged on the inner side of the limiting sleeve, four spring pieces are arranged on the inner side face of the limiting sleeve at equal intervals sequentially, and the spring pieces are of a triangular structure, the spring pad body is provided with a fixing structure.

Preferably, in order to enable the bolt to be embedded between the screw rod and the connecting piece through the embedded piece during fastening and increase the connecting strength, the limiting structure further comprises the embedded piece, the bottom side of the limiting sleeve is fixedly connected with the embedded piece, and the section of the embedded piece is of a triangular structure.

Preferably, in order to prevent that the dish spring pad from sliding each other when the screw rod rotates when a plurality of dish spring pads are connected in parallel or used in series, the fixed knot constructs including the lug, the lug is equipped with a plurality ofly, and a plurality ofly the lug in spring pad body top side is annular equidistance and arranges.

Preferably, in order to enable the end parts of the plurality of disc-shaped spring pads to be mutually meshed when the disc-shaped spring pads are used in a combined combination mode, the connection stability is improved, the fixing structure further comprises a plurality of first clamping grooves, and the plurality of first clamping grooves are alternately arranged on the top side of the spring pad body and the plurality of convex blocks.

Preferably, when a plurality of butterfly spring cushions adopt the coincide mode to use, spring cushion tip and another spring cushion bottom side can mesh mutually, increase connection stability, fixed knot constructs still includes the second draw-in groove, the second draw-in groove is equipped with a plurality ofly, and is a plurality of the second draw-in groove is the annular equidistance setting in the bottom side of spring cushion body.

Preferably, in order to further prevent a plurality of dish-shaped spring pads from rotating when the spring pads are stacked for use, the fixing structure further comprises a plurality of anti-slip strips, and the anti-slip strips are radially arranged on the top side of the spring pad body at equal intervals.

Preferably, in order to further prevent the disc-shaped spring pads from being engaged with each other at the bottom sides thereof when the disc-shaped spring pads are used in an involution manner, so that the two spring pads do not rotate relative to each other, the fixing structure further comprises a plurality of correcting blocks, and the plurality of correcting blocks are annularly arranged at the edge portion of the bottom side of the spring pad body.

The invention has the beneficial effects that:

(1) the invention provides a butterfly spring pad, wherein the limiting sleeve is arranged in the hole in the middle of the butterfly spring pad, so that a screw is positioned in the center of the butterfly spring pad when the screw is fixed by a connecting piece through the butterfly spring pad, the best elastic effect of the butterfly spring pad is effectively ensured, and the connection stability is ensured.

(2) The invention provides a butterfly spring pad, wherein spring pieces are arranged in a limiting sleeve, the limiting sleeve can enable the screw to be always positioned in the middle of the butterfly spring piece for screws with different specifications and diameters, a sliding groove is formed in the inner side of the limiting sleeve, and the limiting sleeve is matched with four sliding blocks arranged on the side wall of a round hole in the top end of a spring pad body, so that when the butterfly spring pad and the limiting sleeve are installed, the spring pad and the limiting sleeve cannot relatively rotate, the possible relative displacement between the limiting sleeve and the spring pad is further avoided, and under the condition that a plurality of butterfly spring pads are used in parallel or in series, the limiting sleeve can also play a role in limiting simultaneously, and the connection tightness is effectively ensured.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a connection structure between the position-limiting structure and the fixing structure shown in FIG. 1;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a schematic view of a connection structure between the spring pad body and the limiting structure shown in fig. 1.

In the figure: 1. the spring cushion comprises a spring cushion body, 2, a limiting structure, 21, a limiting sleeve, 22, an embedded sheet, 23, a sliding groove, 24, a spring sheet, 25, a sliding block, 3, a fixing structure, 31, a convex block, 32, a first clamping groove, 33, an anti-slip strip, 34, a correcting block, 35 and a second clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a butterfly spring pad includes a spring pad body 1, a limiting structure 2 is disposed in the middle of the spring pad body 1, the limiting structure 2 includes a limiting sleeve 21, sliding grooves 23, spring pieces 24 and four sliding blocks 25, the limiting sleeve 21 is a cylindrical tubular structure, four sliding grooves 23 are sequentially disposed on the side surface of the limiting sleeve 21 at equal intervals, the diameter of the limiting sleeve 21 is equal to the diameter of an inner ring of the spring pad body 1, the limiting sleeve 21 is slidably connected with the spring pad body 1, four sliding blocks 25 are disposed on the side surface of the inner ring of the spring pad body 1, the four sliding blocks 25 are disposed corresponding to the four sliding grooves 23, the four sliding blocks 25 are slidably connected with the spring pad body 1 through the four sliding grooves 23, the inner side of the limiting sleeve 21 is provided with a thread structure, and four spring pieces 24 are disposed, four spring leaf 24 is located equidistance in proper order the medial surface of stop collar 21, spring leaf 24 is the triangle-shaped structure, be equipped with fixed knot on the spring mattress body 1 and construct 3.

As a technical optimization scheme of the invention, the limiting structure 2 further comprises an insert 22, the insert 22 is fixedly connected to the bottom side of the limiting sleeve 21, the section of the insert 22 is of a triangular structure, and when the limiting structure is used, in order to enable a bolt to be embedded between a screw and a connecting piece through the insert 22 during fastening, the connecting strength is increased.

As a technical optimization scheme of the present invention, the fixing structure 3 includes a plurality of protrusions 31, the plurality of protrusions 31 are arranged on the top side of the spring pad body 1 in an annular and equidistant manner, so that when the plurality of disc spring pads are used in parallel or in series, the disc spring pads can be prevented from sliding each other when the screw rod rotates.

As a technical optimization scheme of the present invention, the fixing structure 3 further includes a plurality of first engaging grooves 32, the plurality of first engaging grooves 32 are alternately disposed on the top side of the spring pad body 1 and the plurality of protruding blocks 31, so that when the plurality of disc spring pads are used in an involutory combination manner, the ends of the spring pads can be engaged with each other, thereby increasing the stability of connection.

As a technical optimization scheme of the present invention, the fixing structure 3 further includes a plurality of second engaging grooves 35, the plurality of second engaging grooves 35 are disposed at equal intervals in a ring shape on the bottom side of the spring pad body 1, and in order to enable the plurality of butterfly spring pads to be used in an overlapping manner, the end portions of the spring pads can be engaged with the bottom side of another spring pad, so as to increase connection stability.

As a technical optimization scheme of the invention, the fixing structure 3 further comprises a plurality of anti-slip strips 33, the anti-slip strips 33 are radially arranged on the top side of the spring pad body 1 at equal intervals, and in order to further prevent the rotation of the spring pads when the plurality of dish-shaped spring pads are stacked for use.

As a technical optimization scheme of the present invention, the fixing structure 3 further includes a plurality of correction blocks 34, the correction blocks 34 are annularly disposed on an edge portion of the bottom side of the spring pad body 1, and in order to further prevent the bottom sides of the two spring pads from being engaged with each other when the plurality of disc-shaped spring pads are used in an involutory manner, such that the two spring pads do not rotate.

When the invention is used, firstly, a user selects the use mode of the disc-shaped spring pad according to the use requirement, the limit sleeve 21 is introduced into one side through the screw rod and penetrates through the empty groove arranged in the middle of the spring pad body 1, so that the four slide blocks 25 arranged on the inner ring of the spring pad body 1 slide through the four slide grooves 23 arranged on the side surface of the limit sleeve 21, the four spring pieces 24 are arranged on the inner side of the top end part of the limit sleeve 21, the screw rod for fixing is inserted from the end part of the limit sleeve 21, the screw rod can be fixed in the middle of the spring pad body 1 under the action of the spring pieces 24, the end part of the screw rod is aligned with the screw hole to rotate, so that the screw rod is gradually screwed into the screw hole, because the limit sleeve 21 and the screw rod are relatively fixed at the moment, the spring pad body 1 can rotate with the screw rod at the same time, the insert 22 is finally screwed into the screw rod and the screw hole, so that the screw rod is better in fixing effect and prevented from loosening, on the other hand, when the screw rod is completely screwed into the screw hole, the spring pad body 1 is in a flat state, elastic force is applied to the nut part of the screw rod, the connection strength is increased, the position of the spring pad body 1 is positioned at the center part of the screw hole due to the action of the limiting sleeve 21, so that the exerted effect is optimal, when a plurality of disc-shaped spring pads are required to be connected in parallel or in series, in order to obtain larger elastic force, the plurality of spring pads are required to be connected in a involution or superposition mode, the lug 31, the first clamping groove 32 and the second clamping groove 35 which are arranged on the spring pad body 1 can prevent the spring pads from rotating relatively in the screw rod screwing process, so that the connection between the spring pads is tighter, and further better elastic effect is exerted, meanwhile, the limiting sleeve 21 can be sleeved with a plurality of spring pads at the same time, so that the plurality of spring pads can be accurately positioned when being used at the same time.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A butterfly spring pad, includes spring pad body (1), its characterized in that: the middle part of the spring pad body (1) is provided with a limiting structure (2), the limiting structure (2) comprises a limiting sleeve (21), sliding grooves (23), a spring piece (24) and sliding blocks (25), the limiting sleeve (21) is of a cylindrical tubular structure, four sliding grooves (23) are sequentially arranged on the side surface of the limiting sleeve (21) at equal intervals, the diameter of the limiting sleeve (21) is equal to the diameter of the inner ring of the spring pad body (1), the limiting sleeve (21) is in sliding connection with the spring pad body (1), four sliding blocks (25) are arranged on the side surface of the inner ring of the spring pad body (1), the four sliding blocks (25) are arranged corresponding to the four sliding grooves (23), the four sliding blocks (25) are in sliding connection with the spring pad body (1) through the four sliding grooves (23), and the inner side of the limiting sleeve (21) is provided with a thread structure, spring leaf (24) are equipped with four, four spring leaf (24) equidistance is located in proper order the medial surface of stop collar (21), spring leaf (24) are the triangle-shaped structure, be equipped with fixed knot structure (3) on spring mattress body (1).

2. A belleville spring washer according to claim 1, wherein: the limiting structure (2) further comprises an embedded sheet (22), the bottom side of the limiting sleeve (21) is fixedly connected with the embedded sheet (22), and the cross section of the embedded sheet (22) is of a triangular structure.

3. A belleville spring washer according to claim 1, wherein: fixed knot constructs (3) and includes lug (31), lug (31) are equipped with a plurality ofly, and a plurality of lug (31) in spring mattress body (1) top side is annular equidistance and arranges.

4. A belleville spring washer according to claim 3, wherein: the fixing structure (3) further comprises a plurality of first clamping grooves (32), and the plurality of first clamping grooves (32) are arranged on the top side of the spring pad body (1) and are arranged alternately with the plurality of bumps (31).

5. A belleville spring washer according to claim 1, wherein: fixed knot constructs (3) and still includes second draw-in groove (35), second draw-in groove (35) are equipped with a plurality ofly, and are a plurality of second draw-in groove (35) in the bottom side of spring mattress body (1) is the setting of annular equidistance.

6. A belleville spring washer according to claim 1, wherein: the fixing structure (3) further comprises a plurality of anti-slip strips (33), and the anti-slip strips (33) are radially arranged on the top side of the spring mattress body (1) at equal intervals; the fixing structure (3) further comprises a plurality of correcting blocks (34), and the correcting blocks (34) are annularly arranged on the edge part of the bottom side of the spring mattress body (1).