Double-helix compression spring

Abstract

The utility model provides a double-spiral compression spring which comprises two attaching covers, an inner compression spring is arranged on the inner side between the two attaching covers, an outer compression spring is arranged on the outer side between the two attaching covers, a corrugated pipe is arranged between the two attaching covers, and the corrugated pipe is connected with the inner compression spring and the outer compression spring. And a liquid outlet is formed in the outer wall of the corrugated pipe. Lubricating oil is fed into the corrugated pipe, then when the attaching covers extrude the inner compression spring and the outer compression spring, the two attaching covers extrude the corrugated pipe, and then the lubricating oil in the corrugated pipe is extruded out of the interior of the corrugated pipe and sprayed out through the liquid outlet. And the lubricating liquid is in contact with the inner compression spring and the outer compression spring, so that the surface of the spring can be maintained in real time.

Description

TECHNICAL FIELD

[0001] The utility model belongs to compression spring technical field, concretely relates to a double helix compression spring. BACKGROUND

[0002] Compression spring, also known as compression spring, is a kind of helical spring that bears axial pressure. Its material section is mostly circular, but also rectangular and multi-strand steel winding. Compression spring is generally equal pitch, various shapes, including cylindrical, conical, convex, concave and a small amount of non-circular etc. There is a certain gap between the coils of these springs, when subjected to external load, the spring will shrink and deform, and store deformation energy.

[0003] Double bolt compression spring mainly through two groups of compression springs mutual cooperation, increase its bearing pressure, but when compression spring is compressed and reset for a long time, the surface of compression spring will appear damage, need to regularly spray lubricating oil on the surface of compression spring, but because the position of compression spring installation is relatively hidden, subsequent manual cannot accurately make lubricating oil and compression spring fully contact. UTILITY MODEL CONTENT

[0004] UTILITY MODEL

[0005] In view of the above technical problems, the utility model provides a double helix compression spring to solve the technical problems mentioned in the background art.

[0006] TECHNICAL SCHEME

[0007] In order to achieve the above purpose, the utility model provides a technical scheme of a double helix compression spring, comprising a fit cover, the number of fit cover is set to two, the inner side between two fit cover is provided with inner compression spring, the outer side between two fit cover is provided with outer compression spring, the corrugated pipe is set between two fit cover, the outer wall of corrugated pipe is provided with liquid outlet, the number of liquid outlet is set to multiple, multiple liquid outlet annular array is in the inside of corrugated pipe.

[0008] Preferably, the outer wall of the fit cover is provided with a connecting port, the connecting port is connected with the corrugated pipe, the inner part of the connecting port is provided with a liquid inlet pipe, and the side of the liquid inlet pipe is provided with a flow guide pipe.

[0009] Preferably, the outer wall of the fit cover is provided with a side plate, the inner part of the side plate is provided with a mounting hole, the inner part of the fit cover is provided with a placing groove, and the side of the fit cover is slidably connected with a mounting structure.

[0010] Preferably, the mounting structure comprises a lifting ring, the top of the lifting ring is provided with a positioning shaft, the top of the positioning shaft is provided with an auxiliary groove, and the inner part of the auxiliary groove is rotatably connected with a ball.

[0011] Preferably, the number of positioning shafts is set to be multiple, and the multiple positioning shafts are arranged in an annular array on the top of the lifting ring, and the positioning shafts are in sliding connection with the placing grooves.

[0012] Advantages

[0013] Compared with the prior art, the technical scheme provided by the utility model has the following advantages:

[0014] The utility model discloses a technical scheme, compared with the prior art, has the following advantages:

[0015] When the compression spring needs to be installed, only the ball inside the installation structure needs to be stretched out from the inside of the placing groove, then the ball contacts the equipment, then the compression spring is pushed to move, then the ball is recharged into the inside of the placing groove, so that the installation of the compression spring can be realized quickly. DRAWINGS

[0016] Fig. 1 It is the perspective view of the utility model;

[0017] Fig. 2 It is the perspective view of the installation structure of the utility model.

[0018] Reference signs

[0019] 1, the cover is attached;2, the inner compression spring;3, the outer compression spring;4, the bellows;5, the liquid outlet;6, the connecting port;7, the liquid inlet pipe;8, the flow guide pipe;9, the side plate;10, the mounting hole;11, the placing groove;12, the installation structure;1201, the lifting ring;1202, the positioning shaft;1203, the auxiliary groove;1204, the ball. Specific implementation

[0020] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", "coaxial", "bottom", "one end", "top", "the other end", "one side", "front", "both ends", "both sides" and the like is the orientation or positional relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0021] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0022] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing", "provided with" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0023] Now refer to the drawings, wherein the purpose of the drawings shown is only to show certain exemplary embodiments, and is not intended to limit the utility model. In each drawing, the same reference signs represent the same or corresponding parts. The size and proportion in each drawing are only for illustration, and should not be interpreted as a limitation on the utility model, and these sizes can be enlarged relative to the actual product.

[0024] Referring to Figs. 1-2The utility model provides a kind of double helix compression spring, including the cover 1 of fitting, the quantity of the cover 1 of fitting is set to two, the inside of two the cover 1 of fitting between is provided with inner compression spring 2, the outside of two the cover 1 of fitting between is provided with outer compression spring 3, the cover 1 of fitting between is provided with bellow 4, the outer wall of bellow 4 is equipped with liquid outlet 5, the quantity of liquid outlet 5 is set to multiple, multiple liquid outlet 5 annular array is in the inside of bellow 4, the outer wall of the cover 1 of fitting is provided with connecting port 6, connecting port 6 is connected with bellow 4, the inside of connecting port 6 is provided with liquid inlet pipe 7, the side of liquid inlet pipe 7 is provided with flow guide pipe 8, the outer wall of the cover 1 of fitting is provided with side plate 9, the inside of side plate 9 is equipped with mounting hole 10, the inside of the cover 1 of fitting is equipped with placing groove 11, the side of the cover 1 of fitting is slidably connected with mounting structure 12, lubricating oil or other liquid for maintaining outer compression spring 3 and inner compression spring 2 is sent into the inside of flow guide pipe 8 by pump body, then along liquid inlet pipe 7, connecting port 6 enters the inside of bellow 4, when compression spring is extruded, the cover 1 of fitting moves downward and extrudes inner compression spring 2 and outer compression spring 3, and the helical direction of inner compression spring 2 and outer compression spring 3 is opposite, then the cover 1 of fitting extrudes bellow 4, so that bellow 4 is extruded, then the lubricating oil or other liquid in the inside of bellow 4 is sprayed out through liquid outlet 5 and contacts inner compression spring 2 and outer compression spring 3 to maintain inner compression spring 2 and outer compression spring 3.

[0025] Further, in the above technical solution, the mounting structure 12 includes a lifting ring 1201, the top of the lifting ring 1201 is provided with a positioning shaft 1202, the top of the positioning shaft 1202 is equipped with an auxiliary groove 1203, the inside of the auxiliary groove 1203 is rotatably connected with a ball 1204, the number of the positioning shaft 1202 is set to multiple, multiple positioning shafts 1202 are annularly arranged on the top of the lifting ring 1201, the positioning shaft 1202 is slidably connected with the placing groove 11, the lifting ring 1201 is connected with the cover 1 of fitting by bolts, by rotating the bolts, the bolts drive the lifting ring 1201 to lift, the lifting ring 1201 drives the positioning shaft 1202 to lift, then the positioning shaft 1202 drives the ball 1204 on the top of the auxiliary groove 1203 to come out of the inside of the placing groove 11, facilitating the subsequent installation of the compression spring.

[0026] The above-described embodiments only express certain embodiments of the present utility model, and the description is more specific and detailed, but it should not be understood as limiting the scope of the present utility model patent; it should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the present utility model, a number of modifications and improvements can be made, which all belong to the protection scope of the present utility model; therefore, the protection scope of the present utility model patent should be subject to the appended claims.

Claims

1. A double helical compression spring characterized in that, The utility model relates to a liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet device of liquid outlet ​ 2. A double helical compression spring according to claim 1, wherein: ​ 3. A double helical compression spring according to claim 1, wherein: ​ 4. A double helical compression spring according to claim 3, wherein: ​ 5. A double helical compression spring according to claim 4 wherein: ​

Images