CN114992263A - Special-shaped spring with auxiliary spring layer - Google Patents

Abstract

The invention relates to the technical field of special-shaped springs, in particular to a special-shaped spring with an auxiliary spring layer, which comprises an upper portion and a lower portion, wherein a rectangular spring is fixedly connected with a shell through four steel wires, round grooves are formed in the joints of the four steel wires and the shell, buckles are fixedly mounted on the four steel wires, a driving assembly used for compressing the rectangular spring is arranged in the shell, a connecting pipe convenient for operating the driving assembly and fixedly connected in the through grooves is arranged on the outer side wall of the shell, a worm is rotatably mounted at one end of the connecting pipe, and a cross groove is formed in the top of the worm. According to the invention, the worm gear and the worm are matched with the steel wires, so that the rectangular spring can be stably contracted and compressed through manual operation before placement, subsequent placement can be smoothly carried out, and then the rectangular spring is firmly fixed by the four steel wires through the matching of the buckle and the steel wires, so that the rectangular spring can be stably contracted and compressed through manual operation, and the stability is further improved.

Description

A special-shaped spring with auxiliary spring layer

technical field

The invention relates to the technical field of special-shaped springs, in particular to a special-shaped spring with an auxiliary spring layer.

Background technique

The difference between special-shaped springs and conventional springs is that the spring itself is irregular, with bending and a large number of complex angle designs. The types of special-shaped springs are: variable diameter coil spring, leaf spring, rectangular spring, butterfly spring, unequal pitch Coil spring, etc.

Among them, when the installation space is limited, a spring with a rectangular cross-section material is usually used, that is, a rectangular spring. Because the spring made of a rectangular cross-section material can obtain a larger load under the same space and the same amount of deformation, this type of spring Compared with the spring of circular cross-section material, in the same space, its cross-sectional area is large, so it absorbs more energy.

However, when a rectangular spring needs to be added between the two fixed structures, and the two fixed structures are not easy to move and disassemble, it is laborious to manually compress the rectangular spring, and it is difficult to manually squeeze the rectangular spring due to the limited space. , and place the rectangular spring at the same time, and then the rectangular spring is prone to fall out of hand, which may cause personal danger.

To this end, a special-shaped spring with an auxiliary spring layer is proposed.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a special-shaped spring with an auxiliary spring layer. By arranging the worm gear and worm to cooperate with the steel wire, the rectangular spring can be stably contracted and compressed by manual operation before placement, so as to solve the problems raised in the above background technology.

To achieve the above object, the present invention provides the following technical solutions:

A special-shaped spring with an auxiliary spring layer, comprising:

A rectangular spring, the rectangular spring is divided into an upper part and a lower part;

Also includes:

An auxiliary spring layer, an auxiliary spring layer for compressing the rectangular spring is fixedly connected between the upper part and the lower part of the rectangular spring.

Preferably, the auxiliary spring layer includes a casing fixedly connected in the rectangular spring by four steel wires, a circular groove is formed at the connection between the four steel wires and the casing, and a buckle is fixedly installed on the four steel wires. A drive assembly for compressing the rectangular spring is arranged inside the casing, and a through groove is formed on the outer side wall of the casing to facilitate the operation of the drive assembly.

Preferably, the drive assembly includes a connecting pipe fixedly connected in the through groove, one end of the connecting pipe is rotatably installed with a worm, a cross groove is formed on the top of the worm, and a connecting rod is fixedly installed on the inner bottom wall of the casing. A worm wheel is rotatably installed at one end of the first connecting rod, the worm and the worm wheel cooperate with each other, and a winding assembly for winding the steel wire is arranged inside the casing.

Preferably, the rewinding assembly includes a connecting rod 2 fixedly installed on the inner side wall of the casing, a rewinding box is fixedly installed at one end of the connecting rod 2, and a driving rod is rotatably installed on one end of the winding box close to the worm gear , a spur gear is fixedly installed on one end of the drive rod close to the worm gear, and the spur gear meshes with the worm gear, a plurality of small holes are opened on the winding box, and four steel wires pass through the circular groove and the small hole and one end of the drive rod Fixed connection.

Preferably, a ratchet wheel is fixedly installed on the worm wheel, a pull rod is movably installed on the outer side wall of the casing through a convenient fixing device, and a pawl that cooperates with the ratchet wheel is movably installed on one end of the pull rod through a spring hinge.

Preferably, the convenient fixing device includes a square hole formed on the casing, two extrusion heads are elastically installed on the edge of the square hole in a circumferential symmetry, and four clips that cooperate with the extrusion heads are opened on the pull rod. The four said bayonets are divided into two groups.

Preferably, the contact surfaces of the four circular grooves and the steel wire are arc-shaped.

Preferably, arc grooves are provided at the connection between the four steel wires and the rectangular spring.

Preferably, a coil spring box is fixedly installed inside the winding box, and the four steel wires are fixedly connected to one end of the driving rod through the winding box and the coil spring box.

Preferably, the four steel wires are all made of high wear-resistant metal.

Compared with the prior art, the beneficial effects of the present invention are:

1. A special-shaped spring with an auxiliary spring layer according to the present invention, by setting the worm gear and the worm to cooperate with the steel wire, the rectangular spring can be stably contracted and compressed by manual operation before placement, so that the subsequent placement can be carried out smoothly, Furthermore, the cooperation of the buckle and the steel wire allows the four steel wires to firmly fix the rectangular spring, thereby allowing the rectangular spring to be stably contracted and compressed manually, which further improves the stability.

2. A special-shaped spring with an auxiliary spring layer according to the present invention, by setting the pawl and the ratchet wheel to cooperate, although the worm gear and worm have self-locking properties, the elastic force of the rectangular spring is very large after being compressed, and the four steel wires are used to adjust the elastic force. The elastic force of the rectangular spring acts on the worm gear and worm, which is easy to cause the worm gear and worm to break. The pawl and the ratchet can share part of the elastic force of the rectangular spring to avoid the breakage of the worm gear and worm.

3. A special-shaped spring with an auxiliary spring layer according to the present invention, by setting the pawl and the pull rod to cooperate, after placing the rectangular spring, manually pull the pull rod out, so that the pawl is far away from the ratchet, to avoid reverse rotation. When the worm is used, the pawl resists the ratchet wheel and cannot rotate in the opposite direction, which improves the stability of the recovery process of the rectangular spring.

Description of drawings

Fig. 1 is the three-dimensional schematic diagram of the present invention;

Fig. 2 is the front sectional view of the present invention;

Fig. 3 is the top sectional view of the present invention;

Fig. 4 is the enlarged view of A in Fig. 1 among the present invention;

Fig. 5 is the enlarged view of the place B in Fig. 2 in the present invention;

FIG. 6 is a partial structural diagram of the present invention.

In the figure: 1. Rectangular spring; 2. Shell; 3. Steel wire; 4. Round groove; 5. Buckle; 6. Through groove; 7. Connecting pipe; 8. Worm; 9. Connecting rod 1; 10. Worm wheel; 11, connecting rod two; 12, winding box; 13, driving rod; 14, spur gear; 15, coil spring box; 16, small hole; 17, ratchet wheel; 18, pull rod; 19, pawl; 20, square hole ; 21, extrusion head; 22, bayonet.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to FIG. 1 to FIG. 6 , the present invention provides a special-shaped spring with an auxiliary spring layer, and the technical solution is as follows:

A special-shaped spring with an auxiliary spring layer, comprising:

Rectangular spring 1, the rectangular spring 1 is divided into an upper part and a lower part;

Also includes:

For the auxiliary spring layer, an auxiliary spring layer for compressing the rectangular spring 1 is fixedly connected between the upper part and the lower part of the rectangular spring 1 .

When the rectangular spring 1 needs to be added between the two fixed structures, the spring made of the rectangular cross-section material of the rectangular spring 1 can obtain a larger load under the same space and the same deformation amount, and the rectangular spring 1 is manually compressed manually. It is laborious, and limited by space, it is difficult to manually operate the rectangular spring 1 and place the rectangular spring 1 at the same time, and then the rectangular spring 1 will fall out of hand, which may cause personal danger. By setting the auxiliary spring layer, the rectangular spring can be 1. Shrink it to the required height before placing it. After placing it, restore the rectangular spring 1 through the auxiliary spring layer to avoid personal danger and improve stability and safety.

As an embodiment of the present invention, the auxiliary spring layer includes an outer casing 2 fixedly connected in the rectangular spring 1 through four steel wires 3, and a circular groove 4 is formed at the connection between the four steel wires 3 and the outer casing 2. Snaps 5 are fixedly installed on each of them. A drive assembly for compressing the rectangular spring 1 is provided inside the casing 2 , and a through groove 6 is provided on the outer side wall of the casing 2 to facilitate the operation of the drive assembly.

Before use, manually wrap the four steel wires 3 around the two ends of the rectangular spring 1, fasten the four buckles 5 to the corresponding steel wires 3, and then use tools such as screwdrivers to put them into the through slot 6 to operate the drive assembly. Make the four steel wires 3 gradually shrink, and then drive the rectangular spring 1 to shrink and compress. By setting the drive assembly to cooperate with the steel wire 3, the rectangular spring 1 can be stably compressed and compressed by manual operation before placement, so that the subsequent placement can be carried out smoothly. , and the cooperation of the buckle 5 and the steel wire 3 allows the four steel wires 3 to firmly fix the rectangular spring 1, thereby allowing the rectangular spring 1 to be stably contracted and compressed manually, which further improves the stability.

As an embodiment of the present invention, the drive assembly includes a connecting pipe 7 that is fixedly connected in the through groove 6 , one end of the connecting pipe 7 is rotatably mounted with a worm 8 , a cross groove is formed on the top of the worm 8 , and the inner bottom wall of the housing 2 is fixedly installed There is a connecting rod 9, one end of the connecting rod 9 is rotatably installed with a worm wheel 10, the worm 8 and the worm wheel 10 cooperate with each other, and a winding assembly for winding the wire 3 is arranged inside the casing 2.

Manually put a tool such as a screwdriver into the through groove 6, enter the connecting pipe 7 and engage with the cross groove, rotate the worm 8, drive the worm wheel 10 to rotate, and then drive the winding assembly to start winding the steel wire 3, and gradually put the four steel wires. 3 Rewind, drive the rectangular spring 1 to shrink and compress;

While manually rotating the worm 8, it needs to rotate intermittently. Due to the self-locking of the worm 8 of the worm gear 10, it is avoided that the worm 8 will be reversed when the intermittent rest is incapable of being applied to the worm 8 to rotate, so that the artificial can stably rotate the worm 8 and drive the four The steel wire 3 gradually shrinks, thereby driving the rectangular spring 1 to gradually shrink and compress, which further improves the stability.

As an embodiment of the present invention, the rewinding assembly includes a connecting rod 2 11 fixedly installed on the inner side wall of the housing 2 . One end of the connecting rod 2 11 is fixedly installed with a rewinding box 12 , and the winding box 12 is close to one end of the worm wheel 10 . A drive rod 13 is rotatably installed, and a spur gear 14 is fixedly installed at one end of the drive rod 13 close to the worm gear 10, and the spur gear 14 meshes with the worm gear 10. The winding box 12 is provided with a plurality of small holes 16, and four steel wires 3 pass through The circular groove 4 and the small hole 16 are fixedly connected with one end of the driving rod 13 .

When the worm 8 is manually rotated, the worm 8 drives the worm wheel 10 to rotate, and the worm wheel 10 drives the spur gear 14 to rotate. Because the spur gear 14 is fixedly connected with the drive rod 13, it drives the drive rod 13 to rotate, and the four steel wires 3 are connected to the drive rod 13. One end is fixedly connected, and the four steel wires 3 are wound on the driving rod 13 with the rotation of the driving rod 13, and the rectangular spring 1 is gradually compressed and compressed. Before, the rectangular spring 1 can be stably contracted and compressed to the required height manually, and then the rectangular spring 1 can be placed stably. 13 Reverse, and then cooperate with the elastic force of the rectangular spring 1, and then gradually extend the rectangular spring 1 until it touches the fixed surfaces on both sides. When the rectangular spring 1 touches the fixed surfaces on both sides, the four wires are manually 3 is cut to avoid the influence of the subsequent use of the rectangular spring 1 due to the restraint of the steel wire 3, which further improves the stability.

As an embodiment of the present invention, a ratchet 17 is fixedly installed on the worm wheel 10, a pull rod 18 is movably installed on the outer side wall of the housing 2 through a convenient fixing device, and one end of the pull rod 18 is movably installed with the ratchet wheel 17 through a spring hinge. Pawl 19.

Although the worm gear 10 and the worm 8 are self-locking, the elastic force of the rectangular spring 1 is very large after being compressed, and the elastic force of the rectangular spring 1 acts on the worm gear 10 and the worm 8 through the four steel wires 3, which is easy to cause the worm gear 10 and the worm 8 to break. , by being provided with a ratchet wheel 17 and a pawl 19, the elastic force of a part of the rectangular spring 1 can be shared, so as to avoid the breakage of the worm wheel 10 and the worm 8, so that the rectangular spring 1 can be stably compressed and compressed manually and gradually, which further improves the stability;

Then set the pull rod 18 to cooperate with the ratchet 19. After the rectangular spring 1 is placed, manually pull the pull rod 18 outward to make the ratchet 19 away from the ratchet 17, so as to avoid the ratchet 19 against the ratchet 17 when the worm 8 is rotated in the reverse direction. The reverse rotation is impossible, which improves the stability of the recovery process of the rectangular spring 1.

As an embodiment of the present invention, the convenient fixing device includes a square hole 20 formed on the casing 2 , two extrusion heads 21 are elastically installed on the edge of the square hole 20 in a circumferential symmetry, and four extrusion heads 21 are opened on the tie rod 18 . The four bayonet openings 22 of the head 21 are divided into two groups.

After the contraction and compression of the rectangular spring 1 is completed, manually pull the pull rod 18 outward, and the two extrusion heads 21 are contracted by the extrusion force of the edge of the square hole 20 until they extend to the next set of bayonet openings 22, and are locked with the bayonet openings 22. By setting the extrusion head 21 and the bayonet 22 to cooperate, after placing the rectangular spring 1, manually pull the pull rod 18 outward, so that the pawl 19 is far away from the ratchet 17, and then the rectangular spring 1 can be smoothly rotated in the opposite direction and elongated. Further improved stability.

As an embodiment of the present invention, the contact surfaces of the four circular grooves 4 and the steel wire 3 are arc-shaped.

If the contact surface of the four circular grooves 4 and the steel wire 3 is an edge, when the rectangular spring 1 is compressed and compressed or the rectangular spring 1 is stretched, the steel wire 3 and the edge of the circular groove 4 are rubbed, and the steel wire 3 is prone to wear. The elastic force of the rectangular spring 1 itself gives the force of the steel wire 3, which is more likely to wear and even break the steel wire 3. By setting the four circular grooves 4 and the steel wire 3, the contact surface is arc-shaped, and the arc is used as a guide to reduce friction. , thereby improving the stability of contracting and compressing the rectangular spring 1 or extending the rectangular spring 1 .

As an embodiment of the present invention, arc grooves are provided at the connection between the four steel wires 3 and the rectangular spring 1 .

When the rectangular spring 1 is compressed and compressed or the rectangular spring 1 is stretched, if the four steel wires 3 are directly wound on the rectangular spring 1, since the edges of the rectangular spring 1 are all edges, the steel wires 3 are prone to wear and even collapse when rubbing against the edges. By setting the four wires 3 and the rectangular spring 1 to connect with arc grooves, the arc as a guide can reduce the friction force, reduce the friction force of the edge on the steel wire 3, and improve the contraction and compression of the rectangular spring. 1 or the stability of the elongated rectangular spring 1.

As an embodiment of the present invention, a coil spring box 15 is fixedly installed inside the winding box 12 , and four steel wires 3 pass through the winding box 12 and the coil spring box 15 and are fixedly connected to one end of the driving rod 13 .

Before manual operation to shrink and compress the rectangular spring 1, if the steel wire 3 swings randomly in the casing 2, it is easy to be entangled with other mechanisms, causing problems in the operation of other mechanisms. By setting the steel wire 3 to cooperate with the coil spring box 15, the coil spring The box 15 is provided with a coil spring, and the four steel wires 3 pass through the coil spring and then are fixedly connected to one end of the drive rod 13. Before the operation to shrink and compress the rectangular spring 1, the steel wire 3 is contracted in the coil spring box 15, similar to a tape measure. When the rectangular spring 1 needs to be compressed, it can be manually pulled out, which avoids the random swing of the steel wire 3 in the casing 2, and further improves the overall running stability.

As an embodiment of the present invention, the four steel wires 3 are all made of high wear-resistant metal.

When tightening and compressing the rectangular spring 1 or extending the rectangular spring 1, the steel wire 3 receives the pulling force of the driving rod 13 and the elastic force of the rectangular spring 1, and is prone to wear and tear or even breakage. Made of metal, such as high manganese steel, makes the steel wire 3 more wear-resistant, avoids wear and tear, and improves the stability during the overall operation.

Working principle: When using, first, manually put a tool such as a screwdriver into the through groove 6, enter the connecting pipe 7 and engage with the cross groove, rotate the worm 8, drive the worm wheel 10 to rotate, the worm 8 drives the worm wheel 10 to rotate, and the worm wheel 10 Then drive the spur gear 14 to rotate, because the spur gear 14 is fixedly connected with the driving rod 13, and then drives the driving rod 13 to rotate, and the four steel wires 3 are fixedly connected with one end of the driving rod 13, and the four steel wires 3 follow the driving rod 13. Rotate and wrap around the drive rod 13, and gradually shrink and compress the rectangular spring 1. When the rectangular spring 1 is compressed to the required height, place the rectangular spring 1, and manually pull the pull rod 18 outward to keep the pawl 19 away from the ratchet 17. Then rotate the worm 8 in the reverse direction, and the worm 8 drives the worm wheel 10, the spur gear 14, and the drive rod 13 to reverse, and then cooperates with the elastic force of the rectangular spring 1 to gradually extend the rectangular spring 1 until it is fixed against the required two sides. After the rectangular spring 1 is pressed against the fixed surfaces on both sides, the four steel wires 3 are cut by manual operation.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A special-shaped spring with an auxiliary spring layer, comprising: A rectangular spring (1), the rectangular spring (1) is divided into an upper part and a lower part; It is characterized in that it also includes: An auxiliary spring layer, an auxiliary spring layer for compressing the rectangular spring (1) is fixedly connected between the upper part and the lower part of the rectangular spring (1). 2. A special-shaped spring with an auxiliary spring layer according to claim 1, characterized in that: the auxiliary spring layer comprises a casing (2) fixedly connected in the rectangular spring (1) through four steel wires (3). ), a circular groove (4) is provided at the connection between the four said steel wires (3) and the casing (2), and a buckle (5) is fixedly installed on the four said steel wires (3), and the casing (2) ) is internally provided with a drive assembly for compressing the rectangular spring (1), and a through groove (6) is provided on the outer side wall of the casing (2) to facilitate the operation of the drive assembly. 3. A special-shaped spring with an auxiliary spring layer according to claim 2, characterized in that: the drive assembly comprises a connecting pipe (7) fixedly connected in the through groove (6), and the connecting pipe ( 7) A worm (8) is rotatably installed at one end, the top of the worm (8) is provided with a cross groove, and a connecting rod (9) is fixedly installed on the inner bottom wall of the casing (2). A worm wheel (10) is rotatably installed at one end of the ), the worm (8) and the worm wheel (10) cooperate with each other, and a winding assembly for winding the wire (3) is arranged inside the casing (2). 4. A special-shaped spring with an auxiliary spring layer according to claim 3, characterized in that: the winding assembly comprises a connecting rod two (11) fixedly installed on the inner side wall of the casing (2), so One end of the second connecting rod (11) is fixedly installed with a winding box (12), and one end of the winding box (12) close to the worm gear (10) is rotatably installed with a driving rod (13), and the driving rod (13) is close to the A spur gear (14) is fixedly mounted on one end of the worm gear (10), and the spur gear (14) is meshed with the worm gear (10). (3) It is fixedly connected to one end of the driving rod (13) through the circular groove (4) and the small hole (16). 5. A special-shaped spring with an auxiliary spring layer according to claim 3, characterized in that: a ratchet (17) is fixedly installed on the worm wheel (10), and a ratchet wheel (17) is fixedly installed on the outer side wall of the casing (2) The fixing device is movably installed with a pull rod (18), and one end of the pull rod (18) is movably installed with a pawl (19) that cooperates with the ratchet wheel (17) through a spring hinge. 6. A special-shaped spring with an auxiliary spring layer according to claim 6, characterized in that: the convenient fixing device comprises a square hole (20) opened on the casing (2), the square hole (20) Two extrusion heads (21) are elastically installed circumferentially symmetrically on the edge of the ), and four bayonet openings (22) that cooperate with the extrusion head (21) are provided on the draw rod (18). (22) is divided into two groups. 7 . The special-shaped spring with auxiliary spring layer according to claim 2 , wherein the contact surfaces of the four circular grooves ( 4 ) and the steel wire ( 3 ) are arc-shaped. 8 . 8 . The special-shaped spring with an auxiliary spring layer according to claim 2 , characterized in that: arc grooves are provided at the joints between the four steel wires ( 3 ) and the rectangular spring ( 1 ). 9 . 9 . The special-shaped spring with an auxiliary spring layer according to claim 4 , wherein a coil spring case ( 15 ) is fixedly installed inside the winding box ( 12 ), and the four steel wires ( 3 ) is fixedly connected to one end of the driving rod (13) through the winding box (12) and the coil spring box (15). 10 . The special-shaped spring with an auxiliary spring layer according to claim 2 , wherein the four steel wires ( 3 ) are all made of high wear-resistant metal. 11 .

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