Oil cup protective cap

Abstract

The present invention relates to the technical field of dustproof covers, and in particular to an oil cup protective cap. The oil cup protective cap provided in this application includes a snap ring and a snap cap; the head of the oil cup includes a neck and a ball head located above the neck, the snap ring can be connected to the neck of the oil cup so that the ball head of the oil cup is exposed above the snap ring; the snap cap is formed with a hollow chamber, and one end of the snap cap is an open end, the head of the oil cup can extend into the hollow chamber of the snap cap through the open end, so that the snap cap is covered on the outside of the head of the oil cup; the snap cap can be snapped with the snap ring, so that the snap cap is fixed by the snap ring, so that the snap cap is stably and firmly covered on the outside of the head of the oil cup; and the snap ring can block the open end of the snap cap. When the snap cap is covered on the outside of the head of the oil cup, the head of the oil cup can be sealed in the hollow chamber of the snap cap, thereby preventing foreign matter such as dust from entering the snap cap and adhering to the head of the oil cup.

Description

Technical Field

[0001] The present invention relates to the technical field of dustproof covers, in particular to an oil cup protective cap. Background Art

[0002] In mechanical equipment, an oil cup is usually provided for regular oiling and maintenance of the friction pair to avoid excessive wear of the friction pair and extend the service life of the machine. In order to prevent dust from adhering to the head of the oil cup, a dust cap is usually provided on the oil cup. The dust cap is directly engaged with the head of the oil cup. However, due to the grease adhering to the head of the oil cup, the ball head of the oil cup is very smooth. In addition, during long-term use, after multiple disassembly and aging, the elasticity of the dust cap is reduced, resulting in the dust cap being unable to be clamped on the ball head, and the dust cap cannot effectively play a role in dust prevention for the oil cup. Summary of the Invention

[0003] The object of the present invention is to provide an oil cup protective cap, so that the oil cup protective cap can be stably and firmly covered on the outer side of the ball head of the oil cup to protect the oil cup from dust.

[0004] The present invention provides an oil cup protective cap, comprising a snap ring and a snap cap; the snap ring can be connected to the head of the oil cup, and the snap cap is arranged on the outside of the head of the oil cup and can be snapped with the snap ring.

[0005] Furthermore, a clamping pin is formed on the clamping ring, and a clamping portion is formed at one end of the clamping pin; a clamping groove is formed on the inner wall of the clamping cap; the clamping pin can be inserted into the clamping cap, and the clamping portion can be embedded in the clamping groove.

[0006] Furthermore, the number of the card pins and the number of the card slots are both multiple and one-to-one corresponding; and the two ends of the card slot along the circumferential direction of the card cap are smoothly transitionally connected to the inner wall of the card cap.

[0007] Furthermore, an inclined surface is formed between an end surface of the clamping portion away from the clamping ring and an end surface of the clamping portion facing the clamping groove.

[0008] Furthermore, the clamping ring is formed with a through hole, and the through hole is adapted to the head of the oil cup, so that the clamping ring can be sleeved on the head of the oil cup.

[0009] Furthermore, the clamping cap is formed with a screwing boss.

[0010] Furthermore, knurling is formed on the outer wall of the screwing boss.

[0011] Furthermore, it also includes a connecting belt; one end of the connecting belt is connected to the clamping ring, and the other end of the connecting belt is connected to the clamping cap.

[0012] Furthermore, the clamping cap, the connecting belt and the clamping ring are integrally formed.

[0013] Furthermore, the clamping cap, the connecting belt and the clamping ring are all made of PTFE.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The oil cup protective cap provided by the present invention includes a snap ring and a snap cap, the snap ring is connected to the head of the oil cup; the snap cap forms a hollow chamber, and one end of the snap cap is an open end, the head of the oil cup can extend into the hollow chamber of the snap cap through the open end, so that the snap cap is covered on the outside of the head of the oil cup; the snap cap can be snapped with the snap ring, so that the snap cap is fixed by the snap ring, so that the snap cap is stably and firmly covered on the outside of the head of the oil cup; and the snap ring can seal the open end of the snap cap, and when the snap cap is covered on the outside of the head of the oil cup, the head of the oil cup can be sealed in the hollow chamber of the snap cap, thereby preventing dust and other foreign matter from entering the snap cap and adhering to the head of the oil cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 A schematic structural diagram of an oil cup protective cap provided in an embodiment of the present invention;

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 A schematic diagram of the structure of the oil cup protective cap provided by an embodiment of the present invention in a tightened state;

[0020] Figure 4 This is a schematic diagram of the structure of the oil cup protective cap provided by an embodiment of the present invention in a loose and detachable state.

[0021] Reference numerals:

[0022] 1- snap ring, 2- snap cap, 21-slot, 3-pin, 31-clamping part, 4-screwing boss, 5-connecting belt. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0024] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the inventive product is usually placed when in use. They 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 operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0025] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0026] In the description of the embodiments of the present application, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0027] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0028] For ease of description, spatially relative terms such as "above," "upper," "below," and "lower" may be used herein to describe the relationship of one element to another element as illustrated in the drawings. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the drawings.

[0029] The terms used herein are intended only to describe various examples and are not intended to limit the present disclosure. Unless the context clearly indicates otherwise, the singular is intended to include the plural. The terms "comprise," "include," and "have" list the presence of stated features, quantities, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0030] Due to manufacturing techniques and / or tolerances, variations in the shapes shown in the drawings may occur. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include changes in shapes that occur during manufacturing.

[0031] The features of the examples described herein may be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have various configurations, other configurations are possible, as will be apparent upon understanding the disclosure of this application. In addition, the technical solutions between the various embodiments may be combined with each other, but this must be based on the ability of a person of ordinary skill in the art to implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0032] Refer to the following Figures 1 to 4 An oil cup protective cap according to some embodiments of the present application is described.

[0033] This application provides an oil cup protective cap, such as Figures 1 to 4 As shown, it includes a snap ring 1 and a snap cap 2; the snap ring 1 can be connected to the head of the oil cup, and the snap cap 2 is covered on the outside of the head of the oil cup and can be snapped with the snap ring 1.

[0034] The oil cup protective cap provided in the present application includes a clamping ring 1 and a clamping cap 2; the head of the oil cup includes a neck and a ball head located above the neck, and the clamping ring 1 can be connected to the neck of the oil cup so that the ball head of the oil cup is exposed above the clamping ring 1; the clamping cap 2 is formed with a hollow chamber, and one end of the clamping cap 2 is an open end, and the head of the oil cup can extend into the hollow chamber of the clamping cap 2 through the open end, so that the clamping cap 2 is covered on the outside of the head of the oil cup; the clamping cap 2 can be clamped with the clamping ring 1, so that the clamping cap 2 is fixed by the clamping ring 1, so that the clamping cap 2 is stably and firmly covered on the outside of the head of the oil cup; and the clamping ring 1 can seal the open end of the clamping cap 2. When the clamping cap 2 is covered on the outside of the head of the oil cup, the head of the oil cup can be sealed in the hollow chamber of the clamping cap 2, thereby preventing dust and other foreign matter from entering the clamping cap 2 and adhering to the head of the oil cup.

[0035] When the oil cup is not in use, the clamping cap 2 is placed on the outside of the head of the oil cup and the clamping cap 2 is clamped on the clamping ring 1 to prevent dust and other foreign matter from adhering to the head of the oil cup. As a result, the operator does not need to clean the oil cup, especially the oil outlet of the oil cup head, every time the oil cup is used. When the oil cup is used to perform oil filling and maintenance on the equipment, it is only necessary to remove the clamping cap 2 from the clamping ring 1, which is convenient and quick to operate.

[0036] In one embodiment of the present application, preferably, Figure 1 As shown, a clamping pin 3 is formed on the clamping ring 1, and a clamping portion 31 is formed at one end of the clamping pin 3; a clamping groove 21 is formed on the inner wall of the clamping cap 2; the clamping pin 3 can extend into the clamping cap 2, and the clamping portion 31 can be embedded in the clamping groove 21.

[0037] In this embodiment, when the oil cup is placed vertically, the snap ring 1 is connected to the head of the oil cup, and the snap ring 1 is placed in the horizontal direction, and the clamping cap 2 covering the outside of the head of the oil cup is located above the snap ring 1; the upper end surface of the snap ring 1 is provided with a clamping pin 3 extending in the vertical direction, one end of the clamping pin 3 is connected to the snap ring 1, and the other end of the snap ring 1 extends upward to form a clamping portion 31, and a clamping groove 21 is formed on the side wall of the hollow chamber in the clamping cap 2; because the clamping pin 3 is made of PTFE (polytetrafluoroethylene) as described below, the clamping pin 3 has a certain elasticity, when the clamping cap 2 is covered on the head of the oil cup When the outer side is moved and a force is applied to the clamping cap 2 in the direction of the retaining ring 1, the clamping pin 3 will bend in the direction of the axis of the clamping cap 2 under the pressure of the clamping cap 2, so that the clamping pin 3 can extend into the clamping cap 2; continue to press the clamping cap 2 downward until the clamping portion 31 at the end of the clamping pin 3 reaches the position where the clamping groove 21 is provided in the clamping cap 2 and is embedded in the clamping groove 21, thereby stably and firmly connecting the clamping cap 2 to the retaining ring 1, and it is not easy to loosen. Under the joint action of the clamping cap 2 and the retaining ring 1, dust is not easy to enter the clamping cap 2 and adhere to the head of the oil cup, thereby effectively protecting the oil cup from dust.

[0038] In one embodiment of the present application, preferably, Figure 3 and Figure 4 As shown, there are multiple card pins 3 and card slots 21 in one-to-one correspondence; and both ends of the card slot 21 along the circumference of the card cap 2 smoothly transition to the inner wall of the card cap 2.

[0039] In this embodiment, there are multiple clamping pins 3, and the multiple clamping pins 3 are spaced apart along the circumferential direction of the clamping ring 1; there are also multiple clamping grooves 21 opened on the inner wall of the clamping cap 2, and the multiple clamping grooves 21 correspond one-to-one to the multiple clamping pins 3; when the clamping cap 2 is pressed downward, the clamping portion 31 of each clamping pin 3 can be embedded in the corresponding clamping groove 21, thereby improving the connection strength between the clamping cap 2 and the clamping ring 1 to a certain extent, so that the clamping cap 2 can be stably and firmly covered on the outside of the head of the oil cup, thereby playing a dust-proof function.

[0040] like Figure 3 and Figure 4 As shown, both ends of each slot 21 along the circumferential direction of the cap 2 are smoothly transitionally connected to the inner wall of the cap 2. When the cap 2 needs to be removed, the cap 2 is rotated clockwise or counterclockwise. When the engaging portion 31 reaches the end of the slot 21, the cap 2 is continued to be rotated. The engaging pin 3 will be deflected toward the inside of the cap 2 under the pressure of the cap 2 until the engaging portion 31 is disengaged from the slot 21. The cap 2 can be removed by pulling it upwards. The operation is simple, convenient and quick.

[0041] In one embodiment of the present application, preferably, Figure 2 As shown, an inclined surface is formed between the end surface of the clamping portion 31 away from the clamping ring 1 and the end surface of the clamping portion 31 facing the clamping groove 21 .

[0042] In this embodiment, an inclined surface is formed between the end surface of the clamping portion 31 away from the clamping ring 1, that is, the upper end surface of the clamping portion 31 and the vertical end surface of the clamping portion 31 facing the clamping groove 21; when it is necessary to cover the clamping cap 2 on the outside of the head of the oil cup and press the clamping cap 2 downward, the lower end surface of the clamping cap 2 will first abut against the inclined surface, and the clamping cap 2 will continue to be pressed downward, and the clamping cap 2 will generate an extrusion force on the clamping portion 31. The extrusion force acts on the inclined surface of the clamping portion 31, causing the clamping pin 3 to bend toward the inside of the clamping cap 2, so that the clamping portion 31 can The clamping part 31 is inserted into the clamping cap 2 until it reaches the position where the clamping groove 21 is provided on the clamping cap 2. The clamping cap 2 can no longer exert a force on the clamping pin 3 to bend it inward, and the clamping pin 3 rebounds to its original position due to its elastic force. At this time, the clamping part 31 is embedded in the clamping groove 21, and the upper end surface of the clamping groove 21 abuts against the upper end surface of the clamping part 31; the lower end surface of the clamping groove 21 abuts against the lower end surface of the clamping part 31, so that the clamping cap 2 is stably and firmly clamped to the snap ring 1 through the clamping pin 3, and the connection between the clamping cap 2 and the snap ring 1 is not easy to loosen.

[0043] In one embodiment of the present application, preferably, Figure 1 As shown, the snap ring 1 is formed with a through hole, which is adapted to the head of the oil cup so that the snap ring 1 can be sleeved on the head of the oil cup.

[0044] In this embodiment, the head of the oil cup includes a neck and a spherical head located above the neck, and the diameter of the spherical head is larger than the diameter of the neck; the snap ring 1 is formed with a through hole, which is adapted to the neck of the oil cup, so that the snap ring 1 can be sleeved on the neck of the oil cup; the snap ring 1 is made of a material with a certain elasticity. When the snap ring 1 is sleeved on the neck of the oil cup, the inner wall surface of the through hole on the snap ring 1 is tightly abutted against the outer wall surface of the neck of the oil cup, thereby making it difficult for the snap ring 1 to fall off the oil cup.

[0045] In one embodiment of the present application, preferably, Figure 1 As shown, the clamping cap 2 is formed with a screwing boss 4 .

[0046] In this embodiment, the cap 2 is formed with a screwing boss 4, which is located at the upper end of the cap 2, so that it is more convenient for the operator to apply force to the cap 2 when screwing the cap 2 to disengage the cap 2 from the retaining ring 1; preferably, the screwing boss 4 is hexagonal.

[0047] In one embodiment of the present application, preferably, Figure 1 As shown, knurling is formed on the outer wall of the screwing boss 4.

[0048] In this embodiment, knurling is formed on the outer wall of the screwing boss 4 to increase the friction of the screwing boss 4, so that the operator can still grasp the clamping cap 2 and screw the clamping cap 2 to disengage the clamping cap 2 from the retaining ring 1 even when grease adheres to the outer wall of the clamping cap 2 or the operator's fingers.

[0049] In one embodiment of the present application, preferably, Figure 1 As shown, the oil cup protective cap further includes a connecting belt 5 ; one end of the connecting belt 5 is connected to the clamping ring 1 , and the other end of the connecting belt 5 is connected to the clamping cap 2 .

[0050] In this embodiment, the oil cup protective cap also includes a connecting belt 5, one end of the connecting belt 5 is connected to the clamping cap 2, and the other end of the connecting belt 5 is connected to the clamping ring 1, so that when the clamping cap 2 is disengaged from the clamping needle 3, the clamping cap 2 can still be connected to the clamping ring 1 through the connecting belt 5 to prevent the clamping cap 2 from being placed randomly and lost.

[0051] In one embodiment of the present application, preferably, Figure 1 As shown, the clamping cap 2, the connecting belt 5 and the clamping ring 1 are integrally formed.

[0052] In this embodiment, the clamping ring 1, the clamping cap 2 and the connecting band 5 are integrally formed, so that the oil cup protective cap is more convenient to process and manufacture and has higher outer tube quality.

[0053] In one embodiment of the present application, preferably, Figure 1 As shown, the material of the clamping cap 2, the connecting belt 5 and the clamping ring 1 is PTFE.

[0054] In this embodiment, the material of the clamping cap 2, the connecting belt 5 and the clamping ring 1 is PTFE with good aging resistance, so that the oil cup protective cap also has good aging resistance, thereby extending the service life of the oil cup protective cap.

[0055] At the same time, the PTFE material with a certain degree of elasticity is selected so that when the card cap 2 is engaged with the card pin 3 , the card pin 3 can bend under the force, and can return to its original shape to be embedded in the card slot 21 when the force disappears.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An oil cup protective cap, characterized in that: Including retaining ring and retaining cap; The snap ring is connectable to the head of the oil cup. The head of the oil cup includes a neck and a ball head located above the neck. The ball head has a diameter larger than that of the neck. The snap ring is formed with a through hole that fits within the neck of the oil cup so that the snap ring fits over the neck of the oil cup. The snap ring is made of an elastic material. When the snap ring is fitted over the neck of the oil cup, the inner wall of the through hole in the snap ring tightly abuts against the outer wall of the neck of the oil cup. The clamping cap is formed with a hollow chamber, one end of which is an open end. The head of the oil cup can extend into the hollow chamber of the clamping cap through the open end, so that the clamping cap is arranged on the outside of the head of the oil cup and can be clamped with the clamping ring. The clamping ring can seal the open end of the clamping cap. A clamping pin is formed on the clamping ring, and a clamping portion is formed at one end of the clamping pin; A card slot is formed on the inner wall of the card cap; the card needle can be inserted into the card cap, and the clamping portion can be embedded in the card slot; There are multiple card pins and card slots in a one-to-one correspondence; Both ends of the clamping groove along the circumferential direction of the clamping cap are smoothly transitionally connected to the inner wall of the clamping cap.

2. The oil cup protective cap according to claim 1, characterized in that: An inclined surface is formed between an end surface of the clamping portion away from the clamping ring and an end surface of the clamping portion facing the clamping groove.

3. The oil cup protective cap according to claim 1, characterized in that: The clamping cap is formed with a screwing boss.

4. The oil cup protective cap according to claim 3, characterized in that: Knurling is formed on the outer wall of the screwing boss.

5. The oil cup protective cap according to claim 1, characterized in that: Also includes connecting straps; One end of the connecting belt is connected to the clamping ring, and the other end of the connecting belt is connected to the clamping cap.

6. The oil cup protective cap according to claim 5, characterized in that: The clamping cap, the connecting belt and the clamping ring are integrally formed.

7. The oil cup protective cap according to claim 5, characterized in that: The clamping cap, the connecting belt and the clamping ring are all made of PTFE.

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