CN110005740A - A fully enclosed silent shock absorber - Google Patents

Abstract

The invention discloses a fully enclosed silent shock absorber, comprising a cylinder shell, a cylinder cover is arranged in the cylinder shell, the cylinder cover and the bottom of the cylinder shell form a closed space, and the cylinder cover can be Relative to the cylinder shell, a shock absorbing mechanism is arranged in the closed space, the shock absorbing mechanism is located between the cylinder head and the bottom of the cylinder shell, and the shock absorbing mechanism is composed of a metal spring and a non-metallic spring. It is composed of metal hemp rope, the non-metal hemp rope is wound on the surface of the metal steel wire, the cylinder head can push the metal spring to move to realize shock absorption, and the two sides of the cylinder shell are respectively provided with exhaust gas A hole and an air outlet, the distance between the air outlet and the bottom of the cylinder shell is greater than the height of the metal spring when the metal spring is in a free state, and the distance between the air outlet and the bottom of the cylinder shell is greater than The height of the metal spring when it is in a free state. The invention can effectively realize the noise reduction of the shock absorber and avoid the noise harming the human body.

Description

A fully enclosed silent shock absorber

technical field

The invention relates to the field of shock absorbers, in particular to a fully enclosed silent shock absorber.

Background technique

Shock absorber is one of the commonly used devices in production and life, such as shock absorbers in automobiles, shock absorbers in household sofas, etc. It is well known that most shock absorbers are made of metal (spring steel) at present. , This kind of shock absorber made of metal will easily generate noise due to movement during work, which will bring many disadvantages to people's life and health.

The harm of noise to the human body is systemic, which can not only cause changes in the auditory system, but also affect the non-auditory system. The early effects of these effects are mainly physiological changes, and long-term exposure to relatively strong noise can cause pathological changes. In addition, noise in the workplace can also interfere with language communication, affect work efficiency, and even cause accidents. Therefore, how to realize the noise reduction of the shock absorber is a problem to be solved by those skilled in the art.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a fully enclosed silent shock absorber to realize the noise reduction of the shock absorber.

A fully enclosed silent shock absorber, comprising a cylinder shell, a cylinder cover is arranged in the cylinder shell, the cylinder cover and the bottom of the cylinder shell form a closed space, the cylinder cover can be opposite to the cylinder The body shell moves, and a shock absorbing mechanism is arranged in the closed space, and the shock absorbing mechanism is located between the cylinder head and the bottom of the cylinder shell, and the shock absorbing mechanism is composed of a metal spring and a non-metal hemp rope , the non-metal hemp rope is wound on the surface of the metal wire, the cylinder head can push the metal spring to move to achieve shock absorption, and the two sides of the cylinder shell are respectively provided with an exhaust hole and an air outlet , the distance between the exhaust hole and the bottom of the cylinder shell is greater than the height of the metal spring when it is in a free state, and the distance between the exhaust hole and the bottom of the cylinder shell is greater than the metal spring The height when in the free state.

According to the fully enclosed silent shock absorber proposed by the present invention, the metal spring is moved by the cylinder head, and the motion is buffered by the metal spring to realize shock absorption. The rope is wound on the surface of the metal wire, and the damping mechanism is in a closed space. On the one hand, the noise generated during the movement of the metal spring will be slowed down and absorbed by the non-metal hemp rope to reduce noise. On the other hand, the confined space The noise generated during the movement of the metal spring can also be blocked to prevent the noise from being transmitted out of the cylinder shell, so that the fully enclosed silent shock absorber can effectively realize the noise reduction of the shock absorber and prevent the noise from harming the human body.

In addition, the fully enclosed silent shock absorber provided according to the present invention may also have the following additional technical features:

Further, a support plate is arranged inside the cylinder shell, a limit hole is arranged in the middle of the support plate, the cylinder cover includes a push rod and a push plate connected with the push rod, and the push plate is connected to the push rod. The shock-absorbing mechanism is in contact, the push rod is arranged in the limit hole, and the push rod moves back and forth in the limit hole to limit the movement of the cylinder head.

Further, the end of the push rod away from the push plate is connected to a piston damping mechanism, the piston damping mechanism includes a piston rod and a piston cylinder connected with the piston rod, and the piston rod is connected with the push rod .

Further, a sealing ring is provided at the connection between the piston rod and the push rod.

Further, the sealing ring is made of rubber material.

Further, the top of the cylinder shell is provided with an escape hole, the outer diameter of the piston rod is equal to the diameter of the escape hole, and the piston rod is located in the escape hole.

Further, one end of the piston cylinder away from the piston rod is connected to a fixer.

Further, the two ends of the bottom of the cylinder shell are provided with bases, and the bases are provided with positioning holes.

Further, the inner layer of the cylinder shell is provided with a sound insulation cotton board.

Further, the distance between the exhaust hole and the bottom of the cylinder shell is equal to the distance between the air outlet hole and the bottom of the cylinder shell.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments taken in conjunction with the accompanying drawings, wherein:

1 is a schematic structural diagram of a fully enclosed silent shock absorber according to a first embodiment of the present invention;

Fig. 2 is the enlarged view of circle A in Fig. 1;

FIG. 3 is a schematic structural diagram of a fully enclosed silent shock absorber according to a second embodiment of the present invention.

Detailed ways

In order to make the objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Several embodiments of the invention are presented in the accompanying drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical", "horizontal", "left", "right", "upper", "lower" and similar expressions used herein are for the purpose of illustration only and do not indicate or imply the referred device or Elements must have a particular orientation, be constructed and operate in a particular orientation and are therefore not to be construed as limitations of the invention.

In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrally connected; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to FIGS. 1 and 2 , the fully enclosed silent shock absorber proposed by the first embodiment of the present invention includes a cylinder casing 10 , and a cylinder head 20 is arranged in the cylinder casing 10 , and the cylinder head 20 is connected to the cylinder casing 10 . A closed space 30 is formed at the bottom of the cylinder casing 10 , the cylinder head 20 can move relative to the cylinder casing 10 , and a damping mechanism 40 is arranged in the closed space 30 .

The damping mechanism 40 is located between the cylinder head 20 and the bottom of the cylinder shell 10 , the damping mechanism 40 is composed of a metal spring 41 and a non-metallic hemp rope 42 , and the non-metallic hemp rope 42 is wound On the surface of the metal wire 41 , the cylinder head 20 can push the metal spring 41 to move, so as to realize shock absorption. The non-metal hemp rope 42 can be wound on the surface of the metal wire 41 in the form of gluing, layering, mixing, and crossing.

Both sides of the cylinder shell 10 are respectively provided with an exhaust hole 11 and an air outlet 12, through which the exhaust and the exhaust are realized. Specifically, the exhaust hole 11 and the cylinder block The distance between the bottoms of the shell 10 is greater than the height of the metal spring 41 when the metal spring 41 is in a free state, and the distance between the air outlet hole 12 and the bottom of the cylinder shell 10 is greater than the height of the metal spring 41 when the metal spring 41 is in a free state . Preferably, the distance between the exhaust hole and the bottom of the cylinder shell is equal to the distance between the air outlet hole and the bottom of the cylinder shell.

According to the fully enclosed silent shock absorber proposed in this embodiment, the metal spring 41 is pushed by the cylinder head 20 to move, and the motion is buffered by the metal spring 41 to realize shock absorption. The non-metallic hemp rope 42 is wound on the surface of the metal wire 41, and the damping mechanism 40 is located in the closed space 30. On the one hand, the noise generated during the movement of the metal spring 41 will be slowed down and absorbed by the non-metallic hemp rope 42. , to achieve the effect of reducing noise. On the other hand, the closed space 30 can also block the noise generated during the movement of the metal spring 41 to prevent the noise from being transmitted out of the cylinder shell 10, and finally the fully enclosed silent shock absorber can be effectively realized. The noise reduction of the shock absorber prevents the noise from harming the human body.

Specifically, in this embodiment, both ends of the bottom of the cylinder shell 10 are provided with bases 50 , the bases 50 are provided with positioning holes 51 , and the cylinder shell 10 can be fixed at the corresponding position through the positioning holes 51 with bolts .

Preferably, the inner layer of the cylinder shell 10 is provided with a sound insulation cotton board 60, which can further improve the noise reduction effect.

It should be pointed out that, during the specific implementation, the fully enclosed silent shock absorber can be made into a single-layer fully enclosed silent shock absorber according to the requirements of the application (level of shock absorption), or can be made into a double-layer or multi-layer fully enclosed silent shock absorber. vibrator.

The shape of the fully enclosed silent shock absorber can be made into a spherical or cylindrical shape according to the application (the degree of shock absorption).

The fully enclosed silent shock absorber can be widely used in the fields of transport vehicles, ships' engines, seat shock absorption, sports machinery noise reduction, shock absorption mechanism noise reduction, household furniture noise reduction and shock absorption and other fields.

Referring to FIG. 3 , the fully enclosed silent shock absorber proposed by the second embodiment of the present invention is improved on the basis of the first embodiment. This embodiment mainly describes the differences from the first embodiment. If specified, reference may be made to the first embodiment. Specifically, in this embodiment, a support plate 70 is provided inside the cylinder shell 10, the support plate 70 can be integrally formed with the cylinder shell 10, a limit hole is provided in the middle of the support plate 70, and the cylinder cover 20 includes a push rod 21 and a push plate 22 connected with the push rod 21, the push plate 22 is in contact with the damping mechanism 40, the push rod 21 is set in the limit hole of the support plate 70, the The push rod 21 moves back and forth in the limiting hole to limit the movement of the cylinder head 20 .

In this embodiment, the end of the push rod 21 away from the push plate 22 is connected to a piston damping mechanism, and the piston damping mechanism includes a piston rod 81 and a piston cylinder 82 connected to the piston rod 81 . The rod 81 is connected to the push rod 21 . By setting the piston damping mechanism, a double damping effect is achieved, which can improve the damping performance.

The top of the cylinder shell 10 is provided with a let-away hole, the outer diameter of the piston rod 81 is equal to the diameter of the let-off hole, and the piston rod 81 is located in the let-away hole.

Optionally, a sealing ring 90 is provided at the connection between the piston rod 81 and the push rod 21 to improve sealing performance. Specifically, the sealing ring 90 may be made of rubber material.

Optionally, one end of the piston cylinder 82 away from the piston rod 81 is connected to a holder 100 , and the piston damping mechanism can be fixed in a corresponding position through the holder 100 , and two directions can be realized together with the positioning hole 51 on the base 50 . fixed.

In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above-mentioned embodiments only represent several embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the patent of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can also be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims (10)

1. A fully enclosed silent shock absorber, characterized in that it comprises a cylinder shell, a cylinder cover is provided in the cylinder shell, the cylinder cover and the bottom of the cylinder shell form a closed space, and the cylinder The cover can move relative to the cylinder shell, a shock absorbing mechanism is arranged in the closed space, the shock absorbing mechanism is located between the cylinder cover and the bottom of the cylinder shell, and the shock absorbing mechanism is composed of a metal spring It is composed of non-metal hemp rope, which is wound on the surface of the metal wire, and the cylinder head can push the metal spring to move to realize shock absorption. An exhaust hole and an air outlet, the distance between the exhaust hole and the bottom of the cylinder shell is greater than the height of the metal spring in a free state, and the distance between the exhaust hole and the bottom of the cylinder shell is greater than the height of the metal spring in a free state The distance is greater than the height of the metal spring in a free state. 2 . The fully enclosed silent shock absorber according to claim 1 , wherein a support plate is arranged inside the cylinder shell, a limit hole is arranged in the middle of the support plate, and the cylinder cover includes a push rod. 3 . and a push plate connected with the push rod, the push plate is in contact with the shock absorption mechanism, the push rod is arranged in the limit hole, and the push rod moves back and forth in the limit hole, to limit the movement of the cylinder head. 3 . The fully enclosed silent shock absorber according to claim 2 , wherein the end of the push rod away from the push plate is connected to a piston shock absorber mechanism, and the piston shock absorber mechanism comprises a piston rod and a A piston cylinder is connected with a piston rod, and the piston rod is connected with the push rod. 4 . The fully enclosed silent shock absorber according to claim 3 , wherein a sealing ring is provided at the connection between the piston rod and the push rod. 5 . 5 . The fully enclosed silent shock absorber according to claim 4 , wherein the sealing ring is made of rubber. 6 . 6 . The fully enclosed silent shock absorber according to claim 3 , wherein the top of the cylinder shell is provided with an escape hole, and the outer diameter of the piston rod is equal to the aperture of the escape hole, 7 . The piston rod is located in the bypass hole. 7 . The fully enclosed silent shock absorber according to claim 3 , wherein the end of the piston cylinder away from the piston rod is connected to a fixture. 8 . 8 . The fully enclosed silent shock absorber according to claim 1 , wherein the two ends of the bottom of the cylinder shell are provided with bases, and the bases are provided with positioning holes. 9 . 9 . The fully enclosed silent shock absorber according to claim 1 , wherein the inner layer of the cylinder shell is provided with a sound insulation cotton board. 10 . 10 . The fully enclosed silent shock absorber according to claim 1 , wherein the distance between the exhaust hole and the bottom of the cylinder shell is the distance between the exhaust hole and the bottom of the cylinder shell. 11 . equal distances.