Engine oil pressure indicator
By employing a sealing oil seal and O-ring design in the oil pressure indicator, the problem of contamination of the observation cover caused by high-pressure oil leakage is solved, achieving clean and accurate oil pressure observation.
Patent Information
- Application Number
- CN202520516562.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-03-24
AI Technical Summary
The oil pressure indicator valve of existing single-cylinder diesel engines is prone to high-pressure oil leakage, which leads to contamination of the sight glass and affects the operator's ability to observe the oil pressure level.
Design an oil pressure indicator that adopts a sealing oil seal structure. By setting a seal inside the sealing oil seal, high-pressure oil is prevented from leaking out from the gap between the skeleton and the valve body joint. Combined with an O-ring seal, leakage at the threaded connection is prevented.
It effectively prevents high-pressure oil from entering the observation cover, keeps the observation cover clean, and ensures that the operator can accurately observe the oil pressure.
Smart Images
Figure CN223676351U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to single cylinder diesel engine technical field, concretely relates to an oil pressure indicator. BACKGROUND
[0002] At present, a large number of single cylinder diesel engines on the market need to be installed with oil pressure indicating valve to observe the establishment of oil pressure in oil passage, but high-pressure oil is easy to seep in oil pressure indicating valve and enter observation cover, which pollutes observation cover and directly affects the observation of oil pressure by operator.
[0003] Therefore, an oil pressure indicator is designed to solve the technical problem of high-pressure oil seepage in the prior art. SUMMARY
[0004] The present disclosure provides at least an oil pressure indicator.
[0005] In a first aspect, the present disclosure provides an oil pressure indicator, comprising:
[0006] a mounting body;
[0007] an oil inlet cavity located in the mounting body, wherein a piston is arranged in the oil inlet cavity, and a connecting rod is arranged on the piston;
[0008] a valve body joint arranged at the upper part of the mounting body, and a central aperture of the valve body joint is arranged to accommodate the connecting rod; and
[0009] a plugging oil seal, comprising a framework and an oil seepage sealing element;
[0010] wherein the framework is arranged at the connection between the valve body joint and the connecting rod, and the oil seepage sealing element is sleeved on the outer wall of the framework.
[0011] In an optional embodiment, a through hole is arranged in the center of the framework; wherein
[0012] the connecting rod is adapted to pass through the framework and is in sliding connection with the framework; and
[0013] at least two annular lips are arranged on the inner wall of the through hole of the framework to abut against the connecting rod.
[0014] In an optional embodiment, an accommodating cavity is arranged in the lower part of the valve body joint; wherein
[0015] the framework is arranged in the accommodating cavity; and
[0016] the oil seepage sealing element is adapted to abut against the inner wall of the accommodating cavity to prevent the oil in the oil inlet cavity from seeping out of the connection between the valve body joint and the connecting rod.
[0017] In an alternative embodiment, the oil seepage seal has an outer diameter of 4-72 mm and a wire diameter of 1-2 mm.
[0018] In an alternative embodiment, the bottom of the frame is provided with an elastic member to buffer the pressure generated by the oil inlet cavity on the lower end surface of the frame.
[0019] In an alternative embodiment, the valve body joint is provided with an O-ring at the threaded connection with the mounting body.
[0020] In an alternative embodiment, the piston separates the oil inlet cavity into an oil discharge cavity and an oil return cavity.
[0021] The mounting body is provided with at least one oil discharge passage and an oil return passage to communicate with the oil discharge cavity and the oil return cavity, respectively.
[0022] In an alternative embodiment, the connecting rod is externally provided with a lifting spring.
[0023] The two ends of the lifting spring are connected with the piston and the frame, respectively.
[0024] The lifting spring is adapted to contract when the pressure in the oil discharge cavity increases, driving the piston and the connecting rod to move upward until the oil discharge cavity communicates with the oil discharge passage to discharge oil and then rebound.
[0025] In an alternative embodiment, the upper end of the valve body joint is connected with a viewing cover.
[0026] The top end of the connecting rod penetrates the oil seal and is located inside the viewing cover.
[0027] The upper end surface of the connecting rod is provided with a lifting indicator.
[0028] The indicator is provided with an oil seal, which connects the mounting body and the viewing cover, and a seal is sleeved on the outer wall of the frame in the oil seal. When high-pressure machine oil enters the oil inlet cavity, the seal prevents the high-pressure machine oil from seeping out between the outer wall of the frame and the valve body joint.
[0029] Other features and advantages of the present application will be described in the following description, and some will become apparent from the description, or will be understood from the practice of the present application. The purpose and other advantages of the present application will be achieved and obtained by the structure specifically pointed out in the specification and the drawings.
[0030] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS
[0031] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0032] Fig. 1 The mounting body and the internal component cross-section structure schematic diagram provided by the embodiment of the present application are provided.
[0033] Fig. 2 The plugging oil seal cross-section structure schematic diagram provided by the embodiment of the present application is provided.
[0034] Fig. 3 The valve body joint cross-section structure schematic diagram provided by the embodiment of the present application is provided.
[0035] In the drawings:
[0036] 1, mounting body; 10, oil inlet cavity; 100, oil discharge cavity; 100a, oil discharge channel; 101, oil return cavity; 101a, oil return channel; 11, high-pressure oil inlet;
[0037] 2, plugging oil seal; 20, framework; 21, oil seepage sealing element; 22, elastic element;
[0038] 3, observation cover;
[0039] 4, valve body joint; 40, O-shaped sealing ring; 41, containing cavity;
[0040] 5, piston;
[0041] 6, connecting rod;
[0042] 7, lifting spring;
[0043] 8, lifting indicating head. DETAILED DESCRIPTION
[0044] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the present application will be described clearly and completely in conjunction with the drawings. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0045] In the present document, when a first element is referred to as being "on" a second element, it can be directly on the second element or a third element can be interposed between the first element and the second element. Also, in the drawings, the thicknesses of the components can be exaggerated or reduced for the sake of effective description of the technical content.
[0046] In the present document, when an element or layer is referred to as being "on", "engaged to", "connected to", "attached to", or "coupled to" another element or layer, it can be directly on, engaged, connected, attached, or coupled to the other element or layer, or one or more intervening elements or layers can be present. In contrast, when an element is referred to as being "directly on", "directly engaged to", "directly connected to", "directly attached to", or "directly coupled to" another element or layer, there are no intervening elements or layers present. Other words used to describe the relationship between elements should be interpreted in a like fashion (e.g., "between" versus "directly between", "adjacent" versus "directly adjacent", etc.). As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0047] In the present document, example embodiments of the present disclosure will be described in greater detail with reference to the accompanying drawings. As used herein, expressions such as "at least one of", when preceded by the term comprising, modifies the phrase comprising a list of one or more elements, and does not modify the individual elements of the list. For example, the expression "at least one of a, b, and c" should be understood as including only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.
[0048] The terminology used herein is for the purpose of describing particular example configurations only and is not intended to be limiting. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", and "including" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are discussed or illustrated, unless specifically identified as an order of performance. Additional or alternative steps can be employed.
[0049] As used herein, the phrases "in an embodiment," "according to an embodiment," "in some embodiments," and the like generally mean the particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of the present disclosure. Thus, appearances of such phrases in various places in the specification do not necessarily all refer to the same embodiment. As used herein, the terms "example," "model," "exemplary," and the like are used as example, instance, or illustration. Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations, aspects, or designs. Rather, the use of the terms "example," "exemplary," and the like are intended to present concepts in a concrete manner.
[0050] It is found through research that a large number of single-cylinder diesel engines on the market at present all need to be installed with oil pressure indicating valves for observing the establishment of oil pressure in the oil passage, but high-pressure engine oil is easy to seep into the observation cover and cause pollution to the observation cover, directly affecting the observation of the engine oil pressure by the operator.
[0051] Based on the above research, the oil pressure indicator provided by the embodiments of the present disclosure is provided with a plugging oil seal, the installation body and the observation cover are connected through the plugging oil seal, and a sealing element is sleeved on the outer wall of the framework in the plugging oil seal. When high-pressure engine oil enters the oil inlet cavity, the high-pressure engine oil is effectively intercepted, and the engine oil is prevented from entering the observation cover to cause pollution to the observation cover.
[0052] The defects of the above solutions are the results obtained by the utility model person after practice and careful research, and therefore, the discovery process of the above problems and the solutions proposed by the present disclosure for the above problems should be the contributions made by the utility model person to the present disclosure in the process of the present disclosure.
[0053] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0054] Some embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. In the case of no conflict, the embodiments described below and the features in the embodiments can be combined with each other.
[0055] In some embodiments, as Figs. 1 to 3As shown, when the single cylinder diesel engine is working normally, the high pressure oil enters the oil discharging cavity 100 through the high pressure oil inlet 11, and in the initial state, the oil discharging cavity 100 is not communicated with the oil discharging channel 100a due to the shielding of the piston 5, and along with the continuous entering of the high pressure oil, the piston 5 is pushed, at this time, the lifting spring 7 is compressed, the piston 5 and the connecting rod 6 slide upward, at this time, the lifting indicator head 8 at the top end of the connecting rod 6 moves upward in the observation cover 3, which is convenient for the operator to observe the current oil pressure in the single cylinder diesel engine.
[0056] When the pressure in the oil discharging cavity 100 is too large, the piston 5 is pushed to move upward to the position where the oil discharging cavity 100 is communicated with the oil discharging channel 100a, at this time, part of the high pressure oil flows out along the oil discharging channel 100a to release pressure, and after the pressure is released, the piston 5 is pushed back to the original position by the rebound force of the lifting spring 7.
[0057] In the above working process, since the piston 5 and the inner wall of the oil inlet cavity 10 are not completely sealed, in the process that the high pressure oil enters the oil discharging cavity 100 and pushes the piston 5 to slide upward, part of the oil penetrates into the oil return cavity 101 above the piston 5, when the oil in the oil return cavity 101 is pushed by the piston 5 to the oil return channel 101a, the oil flows out through the oil return channel 101a to be recycled, since the framework 20 is arranged in the accommodating cavity 41 at the bottom of the valve body joint 4, the penetrated oil in the oil return cavity 101 is intercepted by the oil penetration sealing element 21, so that the oil does not penetrate into the observation cover 3 through the gap between the framework 20 and the valve body joint 4 to pollute the observation cover 3.
[0058] The connection mode of the valve body joint 4 and the mounting body 1 is threaded connection, in order to avoid the penetration of the oil through the connection part of the valve body joint 4 and the mounting body 1, the O-shaped sealing ring 40 is arranged at the threaded connection part of the valve body joint 4 and the mounting body 1 to block the penetration of the high pressure oil at the threaded part.
[0059] In the description of the embodiments of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, 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 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.
[0060] In the description of the utility model, it is necessary to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, terms such as "first", "second" and other numerical terms are used in this text, and do not imply order or sequence unless the text is explicitly indicated. Therefore, the above-discussed first element, component, area, layer or section can be referred to as the second element, component, area, layer or section without departing from the teachings of the example embodiments.
[0061] Spatially relative terms, such as "internal", "external", "lower", "under", "bottom", "top", "above", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms can be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
[0062] In the above discussion, unless otherwise stated, the terms "about", "approximately", "substantially" and the like, when used in describing a numerical value, mean a variation of + / - 10% of the value.
[0063] With the above ideal embodiments according to the utility model as the inspiration, through the above description, relevant staff can definitely make various changes and modifications without deviating from the technical thought of the utility model. The technical scope of the utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of claims.
Claims
1. An oil pressure indicator, characterized by, The machine oil pressure indicator comprises: a mounting body (1); an oil inlet cavity (10) in the mounting body (1), wherein a piston (5) is arranged in the oil inlet cavity (10), and a connecting rod (6) is arranged on the piston (5); a valve body joint (4) arranged at the upper part of the mounting body (1), wherein a central opening of the valve body joint (4) is arranged to accommodate the connecting rod (6); and a sealing oil seal (2) comprising a framework (20) and an oil seepage sealing element (21); wherein the framework (20) is arranged at the joint of the valve body joint (4) and the connecting rod (6), and the oil seepage sealing element (21) is sleeved on the outer wall of the framework (20).
2. The machine oil pressure indicator according to claim 1, wherein a through hole is arranged in the center of the framework (20); wherein the connecting rod (6) is adapted to pass through the framework (20) and is in sliding connection with the framework (20); and at least two annular lips (200) are arranged on the inner wall of the through hole of the framework (20) to abut against the connecting rod (6).
3. The machine oil pressure indicator according to claim 2, wherein a receiving cavity (41) is arranged at the lower part of the valve body joint (4); wherein the framework (20) is arranged in the receiving cavity (41); and the oil seepage sealing element (21) is adapted to abut against the inner wall of the receiving cavity (41) to prevent the machine oil in the oil inlet cavity (10) from seeping out of the joint of the valve body joint (4) and the connecting rod (6).
4. The machine oil pressure indicator according to claim 1, wherein the outer diameter of the oil seepage sealing element (21) is 4-72 mm, and the wire diameter is 1-2 mm.
5. The machine oil pressure indicator according to claim 1, wherein an elastic element (22) is arranged at the bottom of the framework (20) to buffer the pressure generated by the oil inlet cavity (10) on the lower end surface of the framework (20).
6. The machine oil pressure indicator according to claim 1, wherein an O-shaped sealing ring (40) is arranged at the threaded connection between the valve body joint (4) and the mounting body (1).
7. The machine oil pressure indicator according to claim 1, wherein the piston (5) divides the oil inlet cavity (10) into an oil discharge cavity (100) and an oil return cavity (101); at least one oil discharge passage (100a) and an oil return passage (101a) are arranged on the mounting body (1) to respectively communicate with the oil discharge cavity (100) and the oil return cavity (101).
8. The machine oil pressure indicator according to claim 7, wherein a lifting spring (7) is sleeved on the outside of the connecting rod (6); the two ends of the lifting spring (7) are respectively connected with the piston (5) and the framework (20); wherein the lifting spring (7) is adapted to contract when the pressure in the oil discharge cavity (100) increases, thereby driving the piston (5) and the connecting rod (6) to move upward until the oil discharge cavity (100) communicates with the oil discharge passage (100a) to discharge oil, and then rebound.
9. The machine oil pressure indicator according to claim 8, wherein an observation cover (3) is connected to the upper end of the valve body joint (4). The top end of the connecting rod (6) penetrates the oil seal (2) and the valve body joint (4) and is located inside the observation cover (3). The upper end surface of the connecting rod (6) is provided with a lifting indication head (8).