Novel spring rope type engine oil dipstick

Abstract

The utility model discloses a novel spring rope type engine oil dipstick which comprises a handle part, a dipstick core part and a graduated scale part which are sequentially connected, and a spring spiral pipe is sleeved outside the dipstick core part. The novel spring rope type engine oil dipstick has high flexibility and can be freely inserted and pulled out of the bent engine oil dipstick tube.

Description

Technical Field

[0001] The utility model relates to the field of automobile parts, in particular to a novel spring rope type oil dipstick. Background Art

[0002] Engine oil, also known as the lubricating oil of automobile engines, plays the role of lubrication, cleaning, cooling, sealing and friction reduction for the engine. Engine oil plays an important role in the normal operation of the engine and even affects the service life of the engine. The addition of engine oil should be appropriate, not too much or too little, so existing engines are equipped with an oil dipstick to measure the oil level in the engine.

[0003] Existing oil dipsticks generally use a steel wire rope or a steel belt to connect the handle and the scale. For example, a Chinese patent with patent application number CN200720129753.8 discloses an oil dipstick, including an oil measuring part, a steel wire part, and a handle part. A concave structure is set between the front and back sides of the lower limit mark and the upper limit mark of the oil measuring part of the oil dipstick, and the two ends of the steel wire part of the oil dipstick are set to a flat structure. A protrusion structure is set on the head end face of the oil measuring part of the oil dipstick.

[0004] However, the oil channel in the engine is not completely straight, but has bent parts, and the wire rope or steel belt has poor flexibility. When the wire rope or steel belt needs to be bent to match the overall machine layout, the wire rope or steel belt oil dipstick is difficult to insert and remove freely in the bent oil dipstick tube, which seriously affects the service life of the entire set of oil dipsticks and user experience. Utility Model Content

[0005] In order to solve the above-mentioned deficiencies in the prior art, the utility model provides a novel spring rope type oil dipstick, which has greater flexibility and can be easily inserted and pulled out of a bent oil dipstick tube.

[0006] The technical problem to be solved by the utility model is achieved through the following technical solutions:

[0007] A novel spring rope type oil dipstick comprises a handle part, a ruler core part and a scale part which are connected in sequence, wherein a spring spiral tube is provided on the outer cover of the ruler core part.

[0008] Furthermore, a central slot and an annular slot are provided on one end of the handle portion facing the ruler core portion and the spring spiral tube, the annular slot surrounds the central slot, and the central slot and the annular slot are concentrically arranged; one end of the ruler core portion is fixedly arranged in the central slot of the handle portion, and one end of the spring spiral tube is fixedly arranged in the annular slot of the handle portion.

[0009] Furthermore, an axis sleeve is provided on one end of the handle portion facing the ruler core portion and the spring spiral tube, and the axis sleeve surrounds the outside of the central slot; a connecting shaft is provided on one end of the ruler core portion facing the handle portion, and is fixed in the central slot through the connecting shaft; the connecting shaft includes a thick shaft portion and a thin shaft portion, one end of the thick shaft portion is connected to the handle portion, and the other end is connected to the thin shaft portion; the annular slot is formed between the axis sleeve and the thin shaft portion.

[0010] Furthermore, the width of the annular groove is smaller than the wall thickness of the spring spiral tube, so that after one end of the spring spiral tube is inserted into the annular groove, the shaft sleeve crimps one end of the spring spiral tube onto the thin shaft portion of the connecting shaft.

[0011] Furthermore, an embedded slot hole is provided on the outer circumferential surface of the thick shaft portion of the connecting shaft, and the interior of the handle portion is embedded in the embedded slot hole of the connecting shaft.

[0012] Furthermore, the diameter of the spring spiral tube gradually decreases from an end close to the handle part to an end close to the scale part, so that the end of the spring spiral tube close to the scale part is crimped outside the scale core part.

[0013] Furthermore, the ruler core part and the scale part are an integrated structure.

[0014] Furthermore, a ball head portion is provided on one end of the scale portion away from the scale core portion.

[0015] Furthermore, the spring spiral tube is made of galvanized spring steel.

[0016] Furthermore, the ruler core part is a wire rope ruler core or a steel belt ruler core.

[0017] The utility model has the following beneficial effects: the oil dipstick of the utility model is provided with the spring spiral tube on the outer sleeve of the ruler core part; the spring spiral tube has high elasticity due to its special spiral structure; the elasticity of the spring spiral tube can be used to increase the flexibility of the ruler core part, so that the ruler core part can be freely inserted and pulled out of the bent oil dipstick tube; at the same time, the elasticity of the spring spiral tube can also drive the ruler core part to restore straightness after the ruler core part is pulled out of the oil dipstick tube, so as to avoid bending and deformation of the ruler core part due to long-term insertion into the bent oil dipstick tube, thereby improving the measurement accuracy of the engine oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model provides a novel spring rope type oil dipstick structure schematic diagram.

[0019] Figure 2 for Figure 1 The AA cross-sectional schematic diagram of the new spring rope type oil dipstick is shown. DETAILED DESCRIPTION

[0020] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0021] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; 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 it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Embodiment 1

[0025] like Figure 1 and 2 As shown, a novel spring rope type oil dipstick comprises a handle part 1, a ruler core part 2 and a scale part 3 which are connected in sequence, wherein the ruler core part 2 is provided with a spring spiral tube 4 on its outer sleeve.

[0026] The oil dipstick of the utility model is provided with the spring spiral tube 4 on the outer sleeve of the ruler core part 2. The spring spiral tube 4 has high elasticity due to its special spiral structure. The elasticity of the spring spiral tube can increase the flexibility of the ruler core part 2, so that the ruler core part 2 can be easily inserted and pulled out of the bent oil dipstick tube. At the same time, the elasticity of the spring spiral tube 4 can also drive the ruler core part 2 to restore its straightness after the ruler core part 2 is pulled out of the oil dipstick tube, so as to avoid the ruler core part 2 from being bent and deformed due to being inserted into the bent oil dipstick tube for a long time, thereby improving the measurement accuracy of the engine oil.

[0027] Preferably, the spring spiral tube 4 is galvanized spring steel. Spring steel is a special alloy steel with specific properties. It is an elastic steel formed by quenching and tempering. Because of its excellent elasticity, it can withstand a certain load within a specified range and does not permanently deform after the load is removed. It is widely used to manufacture various types of springs and other elastic elements. Spring steel has good comprehensive properties, including mechanical properties (especially elastic limit, strength limit, yield strength ratio), anti-elasticity (i.e., anti-elasticity, also known as anti-relaxation performance), fatigue performance, hardenability and physical and chemical properties (heat resistance, low temperature resistance, oxidation resistance, corrosion resistance, etc.). Galvanizing on the surface of spring steel can further improve the corrosion resistance of spring steel.

[0028] In this embodiment, the ruler core part 2 is a steel wire rope ruler core or a steel belt ruler core.

[0029] The steel wire rope ruler core or steel belt ruler core itself has poor flexibility and is difficult to be easily inserted and pulled out of the bent oil dipstick tube. After the spring spiral tube 4 is arranged on the outer shell of the steel wire rope ruler core or steel belt ruler core, the elasticity of the spring spiral tube can increase the flexibility of the steel wire rope ruler core or steel belt ruler core, so that the steel wire rope ruler core or steel belt ruler core can be easily inserted and pulled out of the bent oil dipstick tube; at the same time, the elasticity of the spring spiral tube 4 can also drive the steel wire rope ruler core or steel belt ruler core to restore straightness after the steel wire rope ruler core or steel belt ruler core is pulled out of the oil dipstick tube, so as to avoid the steel wire rope ruler core or steel belt ruler core from bending and deforming due to being inserted into the bent oil dipstick tube for a long time, thereby improving the measurement accuracy of the engine oil.

[0030] A central slot 11 and an annular slot 12 are provided on one end of the handle portion 1 facing the ruler core portion 2 and the spring spiral tube 4. The annular slot 12 surrounds the central slot 11, and the central slot 11 and the annular slot 12 are concentrically arranged. One end of the ruler core portion 2 is fixedly arranged in the central slot 11 of the handle portion 1, and one end of the spring spiral tube 4 is fixedly arranged in the annular slot 12 of the handle portion 1.

[0031] The diameter of the spring spiral tube 4 gradually decreases from the end close to the handle part 1 to the end close to the scale part 3 , so that the end of the spring spiral tube 4 close to the scale part 3 is crimped outside the ruler core part 2 .

[0032] The oil dipstick of the utility model fixes the ruler core part 2 and the spring spiral tube 4 in a concentrically arranged central slot 11 and annular slot 12 at one end, and crimps the spring spiral tube 4 outside the ruler core part 2 at the other end, finally realizing a coaxial arrangement between the ruler core part 2 and the spring spiral tube 4, so that the radial force of the spring spiral tube 4 on the ruler core part 2 is evenly distributed.

[0033] An axial sleeve 13 is provided on one end of the handle portion 1 facing the ruler core portion 2 and the spring spiral tube 4, and the axial sleeve 13 surrounds the outside of the central slot 11; a connecting shaft 21 is provided on one end of the ruler core portion 2 facing the handle portion 1, and is fixedly arranged in the central slot 11 through the connecting shaft 21; the connecting shaft 21 includes a thick shaft portion 211 and a thin shaft portion 212, one end of the thick shaft portion 211 is connected to the handle portion 1, and the other end is connected to the thin shaft portion 212; the annular slot 12 is formed between the axial sleeve 13 and the thin shaft portion 212.

[0034] Preferably, the slot width of the annular slot 12 is smaller than the tube wall thickness of the spring spiral tube 4, so that after one end of the spring spiral tube 4 is inserted into the annular slot 12, the shaft sleeve 13 crimps one end of the spring spiral tube 4 onto the thin shaft portion 212 of the connecting shaft 21.

[0035] Preferably, the ruler core part 2 and the connecting shaft 21 are an integrated structure. That is, the ruler core part 2 extends to the outside of the spring spiral tube 4 at one end toward the handle part 1, and is made with the thick shaft part 211 and the thin shaft part 212 to form the connecting shaft 21, which is then placed in the injection mold during the injection molding of the handle part 1 and finally embedded in the central slot 11 of the handle part 1.

[0036] An embedded slot 213 is provided on the outer circumference of the thick shaft portion 211 of the connecting shaft 21 , and the interior of the handle portion 1 is embedded in the embedded slot 213 of the connecting shaft 21 to improve the connection stability between the handle portion 1 and the connecting shaft 21 .

[0037] Preferably, the ruler core part 2 and the scale part 3 are an integrated structure, that is, the ruler core part 2 extends from one end of the handle part 1 to the outside of the spring spiral tube 4 and is provided with a scale to form the scale part 3 .

[0038] A ball head part 5 is provided on one end of the scale part 3 away from the core part 2. The ball head part 5 is used to balance the core part 2 and the scale part 3. A lower scale line is made to indicate the minimum amount of engine oil; an upper scale line is made on the scale part 3 to indicate the maximum amount of engine oil.

[0039] The ball head part 5 is preferably a metal ball head, which is connected to the scale part 3 through a die-casting process.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the utility model rather than to limit them. Although the embodiments of the utility model are described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the embodiments of the utility model can still be modified or replaced by equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A novel spring rope type oil dipstick, comprising a handle portion, a ruler core portion and a scale portion connected in sequence, characterized in that: The ruler core part is covered with a spring spiral tube.

2. The novel spring rope type oil dipstick according to claim 1 is characterized in that: A central slot and an annular slot are provided on one end of the handle portion facing the ruler core portion and the spring spiral tube, the annular slot surrounds the central slot, and the central slot and the annular slot are concentrically arranged; one end of the ruler core portion is fixedly arranged in the central slot of the handle portion, and one end of the spring spiral tube is fixedly arranged in the annular slot of the handle portion.

3. The novel spring rope type oil dipstick according to claim 2 is characterized in that: An axial sleeve is provided on one end of the handle portion facing the ruler core portion and the spring spiral tube, and the axial sleeve surrounds the outside of the central slot; a connecting shaft is provided on one end of the ruler core portion facing the handle portion, and is fixed in the central slot through the connecting shaft; the connecting shaft includes a thick shaft portion and a thin shaft portion, one end of the thick shaft portion is connected to the handle portion, and the other end is connected to the thin shaft portion; the annular slot is formed between the axial sleeve and the thin shaft portion.

4. The novel spring rope type oil dipstick according to claim 3 is characterized in that: The slot width of the annular slot is smaller than the tube wall thickness of the spring spiral tube, so that after one end of the spring spiral tube is inserted into the annular slot, the shaft sleeve presses the one end of the spring spiral tube onto the thin shaft portion of the connecting shaft.

5. The novel spring rope type oil dipstick according to claim 3 is characterized in that: An embedded slot is provided on the outer circumferential surface of the thick shaft portion of the connecting shaft, and the interior of the handle portion is embedded in the embedded slot of the connecting shaft.

6. The novel spring rope type oil dipstick according to claim 1 is characterized in that: The diameter of the spring spiral tube gradually decreases from an end close to the handle part to an end close to the scale part, so that the end of the spring spiral tube close to the scale part is crimped outside the scale core part.

7. The novel spring rope type oil dipstick according to claim 1 is characterized in that: The ruler core part and the scale part are an integrated structure.

8. The novel spring rope type oil dipstick according to claim 1 is characterized in that: A ball head portion is provided on one end of the scale portion away from the scale core portion.

9. The novel spring rope type oil dipstick according to claim 1 is characterized in that: The spring spiral tube is made of galvanized spring steel.

10. The novel spring rope type oil dipstick according to claim 1 is characterized in that: The ruler core part is a steel wire rope ruler core or a steel belt ruler core.

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