Sealing fastener

Abstract

The utility model relates to the technical field of fasteners, in particular to a sealing fastener which comprises a bolt and a nut, the bolt comprises a screw rod, and external threads are arranged on the screw rod; the head is located at one end of the screw; the sealing ring sleeves the bottom of the head part; the annular groove is positioned at the bottom end of the head part, and the annular groove is matched with the sealing ring; the number of the fixing rings is two, and the two fixing rings are oppositely arranged on the upper surface of the sealing ring in the vertical direction; the connecting ring is connected to the other end of the fixing ring; the fixing grooves are formed in the two sides of the head part, and the fixing rings penetrate in or out of the fixing grooves. The sealing fastener has reliable sealing performance, the sealing ring is tightly attached to the head part, and the annular groove is matched with the sealing ring, so that the sealing effect is ensured, and leakage of liquid, gas or particulate matter is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to a sealing fastener. Background Art

[0002] Fasteners, also known as standard parts in the market, are a general term for a type of mechanical parts used to fasten two or more parts (or components) into a whole. They are characterized by a wide variety of specifications, different performances and uses, and a high degree of standardization, serialization, and generalization. Fasteners are the most widely used basic mechanical parts, with a large demand, and can also be customized according to specific usage requirements.

[0003] Bolt: A mechanical part, a cylindrical threaded fastener that is matched with a nut. A type of fastener consisting of a head and a screw (a cylinder with external threads), which must be matched with a nut to fasten two parts with through holes. This type of connection is called a bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection.

[0004] The existing fasteners have the problems of poor sealing performance and unsatisfactory sealing effect.

[0005] Therefore, how to solve the problem that the existing fasteners have poor sealing performance and unsatisfactory sealing effect has become a technical problem that technical personnel in this field urgently need to solve. Utility Model Content

[0006] In view of this, the utility model aims at the deficiencies of the prior art and proposes a sealing fastener, aiming to solve the problems of poor sealing performance and unsatisfactory sealing effect of the prior fasteners.

[0007] The utility model provides a sealing fastener, comprising:

[0008] Bolt and nut, the bolt comprising:

[0009] A screw rod, wherein the screw rod is provided with an external thread;

[0010] A head, located at one end of the screw;

[0011] A sealing ring, sleeved on the bottom of the head;

[0012] An annular groove, located at the bottom end of the head, the annular groove matches the sealing ring;

[0013] There are two fixing rings, which are arranged opposite to each other on the upper surface of the sealing ring in the vertical direction;

[0014] A connecting ring connected to the other end of the fixing ring;

[0015] The fixing grooves are arranged on both sides of the head, and the fixing grooves are used for inserting or removing the fixing ring.

[0016] Furthermore, the nut comprises:

[0017] The circular edge is located at the top edge of the nut.

[0018] Furthermore, the bolt further comprises:

[0019] The rotation groove is located at an end of the head away from the screw.

[0020] Furthermore, the rotating groove is square or hexagonal.

[0021] Furthermore, the sealing ring material is rubber.

[0022] Furthermore, the fixing ring and the connecting ring are made of rubber.

[0023] Furthermore, the thickness of the sealing ring is greater than the depth of the annular groove.

[0024] Furthermore, the height of the fixing ring is equal to the thickness of the nut.

[0025] Compared with the prior art, the beneficial effect of the utility model lies in that the utility model has the advantages of simple structure, reliable sealing performance, long service life, convenient operation, etc.

[0026] The utility model discloses a nut with an internal thread and a screw with an external thread, so that the nut can be tightly connected with the bolt to form a stable fastening effect; the sealing ring can effectively prevent the leakage of liquid, gas or particulate matter of the fastener during the connection process, thereby improving the sealing performance; the matching design of the annular groove and the sealing ring enables the sealing ring to fit tightly with the head better, thereby further improving the sealing effect; the fixing ring and the connecting ring can make the fastener more convenient during the installation and disassembly process, reduce the difficulty of operation, and ensure the accuracy of the position of the sealing ring in the annular groove; the opening of the fixing groove enables the fixing ring to be easily inserted or removed, thereby improving the service life and reliability of the fastener.

[0027] The sealing fastener of the utility model has reliable sealing performance, the tight fit between the sealing ring and the head, and the matching design between the annular groove and the sealing ring ensure the sealing effect and avoid leakage of liquid, gas or particulate matter. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the bolt structure of the sealing fastener of the utility model;

[0029] Figure 2This is a schematic diagram of the nut structure of the sealing fastener of the utility model;

[0030] Figure 3 This is a top view of the head of the sealing fastener of the utility model.

[0031] In the figure: 100, bolt; 110, screw rod; 120, head; 130, sealing ring; 140, annular groove; 150, fixing ring; 160, connecting ring; 170, fixing groove; 180, rotating groove; 200, nut; 210, circular edge. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 should not be understood as a limitation on the present application.

[0034] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0035] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] See also Figure 1-3 As shown, this embodiment provides a sealing fastener, comprising:

[0037] The bolt 100 and the nut 200, the bolt 100 comprises:

[0038] The screw rod 110 is provided with an external thread.

[0039] The head 120 is located at one end of the screw rod 110 .

[0040] The sealing ring 130 is sleeved on the bottom of the head 120 .

[0041] The annular groove 140 is located at the bottom end of the head 120 , and the annular groove 140 matches the sealing ring 130 .

[0042] There are two fixing rings 150 , and the two fixing rings 150 are arranged on the upper surface of the sealing ring 130 opposite to each other in the vertical direction.

[0043] The connecting ring 160 is connected to the other end of the fixing ring 150 .

[0044] The fixing grooves 170 are provided on both sides of the head 120 , and the fixing grooves 170 are used for inserting or removing the fixing ring 150 .

[0045] It can be seen that the nut 200 is provided with an internal thread and the screw rod 110 is provided with an external thread, which enables the nut 200 to be tightly connected with the bolt 100 to form a stable fastening effect; the sealing ring 130 can effectively prevent the leakage of liquid, gas or particulate matter during the connection process of the fastener, thereby improving the sealing performance; the matching design of the annular groove 140 and the sealing ring 130 enables the sealing ring 130 to better fit closely with the head 120, further improving the sealing effect; the fixing ring 150 and the connecting ring 160 can make the fastener more convenient during installation and disassembly, reduce the difficulty of operation, and ensure the accuracy of the position of the sealing ring 130 in the annular groove 140; the opening of the fixing groove 170 enables the fixing ring 150 to be easily inserted or removed, thereby improving the service life and reliability of the fastener.

[0046] It can be understood that the fixing ring 150 is a tubular structure and the connecting ring 160 is an annular structure. By reducing the volume of the fixing ring 150 and the connecting ring 160 by extrusion, the fixing ring 150 and the connecting ring 160 can be easily passed through the fixing groove 170, which is conducive to quick and convenient installation and disassembly of components.

[0047] It can be understood that the sealing fastener of the present invention has reliable sealing performance. The tight fit between the sealing ring 130 and the head 120, and the matching design between the annular groove 140 and the sealing ring 130 ensure the sealing effect and avoid leakage of liquid, gas or particulate matter.

[0048] Specifically, the nut 200 includes:

[0049] The circular edge 210 is located at the top edge of the nut 200 .

[0050] It is understandable that the circular edge 210 at the top edge of the nut 200 can better fit the surface of the object to be fastened, further improving the sealing performance; the circular edge 210 also makes the nut 200 more stable during the fastening process, reducing the possibility of damage caused by friction.

[0051] Specifically, the bolt 100 further includes:

[0052] The rotation groove 180 is located at an end of the head 120 away from the screw 110 .

[0053] It can be understood that the rotation groove 180 can make the bolt 100 better screwed into the nut 200, which is conducive to the close connection between the bolt 100 and the nut 200 and improves the tightening effect; the rotation groove 180 makes the bolt 100 more convenient during installation and removal and reduces the difficulty of operation; the rotation groove 180 can also prevent the bolt 100 from being damaged due to friction during the tightening process.

[0054] Specifically, the rotating groove 180 is square or hexagonal.

[0055] It can be understood that designing the rotation groove 180 as a square or hexagonal shape can well adapt to the shape of the nut 200, so that the bolt 100 can rotate more stably in the nut 200, thereby enhancing the stability of the connection; the square or hexagonal rotation groove 180 can provide greater friction during the installation and disassembly process, so that the bolt 100 is more firmly fixed, thereby improving the fastening performance; this also makes the operation simpler and faster, greatly improving work efficiency.

[0056] Specifically, the sealing ring 130 is made of rubber.

[0057] It is understandable that the sealing ring 130 is made of rubber material, which can adapt well to various sealing environments and has good wear resistance, aging resistance and tensile strength.

[0058] Specifically, the material of the fixing ring 150 and the connecting ring 160 is rubber.

[0059] It is understandable that the fixing ring 150 and the connecting ring 160 are also made of rubber, which makes the fixing ring 150 and the connecting ring 160 have excellent elasticity, can fit tightly in the sealing environment, effectively reduce the risk of leakage, and because rubber has good anti-compression performance, the fixing ring 150 and the connecting ring 160 can also maintain a stable sealing effect under high pressure. On the other hand, the rubber material has high wear resistance and anti-aging performance, which can extend the service life of the fixing ring 150 and the connecting ring 160 and reduce maintenance costs.

[0060] Specifically, the thickness of the sealing ring 130 is greater than the depth of the annular groove 140 .

[0061] It can be understood that the thickness of the sealing ring 130 is greater than the depth of the annular groove 140, which is beneficial to prevent the sealing ring 130 from being over-compressed during the tightening process, thereby causing leakage; the thickness of the sealing ring 130 is greater than the depth of the annular groove 140 can also ensure that the sealing ring 130 can better fit tightly with the head 120 during the tightening process, further improving the sealing effect.

[0062] Specifically, the height of the fixing ring 150 is equal to the thickness of the nut 200 .

[0063] Furthermore, the outer diameter of the fixing ring 150 is equal to the inner diameter of the fixing groove 170 .

[0064] It can be understood that the height of the fixing ring 150 is equal to the thickness of the nut 200, which can just allow the fixing ring 150 to pass through the fixing groove 170, thereby better positioning the sealing ring 130, which is beneficial to improving the service life and reliability of the sealing ring 130; the height of the fixing ring 150 is equal to the thickness of the nut 200 and can also ensure that during the tightening process, the fixing ring 150 can be stably maintained in the annular groove 140, avoiding the reduction of the sealing effect due to the displacement of the fixing ring 150.

[0065] It can be understood that the outer diameter of the fixing ring 150 is equal to the inner diameter of the fixing groove 170, which can ensure that the fixing ring 150 can smoothly pass through the fixing groove 170 during installation and disassembly, thereby improving the convenience of operation; it can also ensure that the fixing ring 150 maintains a stable position during the tightening process, thereby avoiding the reduction of the sealing effect due to the displacement of the fixing ring 150.

[0066] In summary, the utility model has the advantages of simple structure, reliable sealing performance, long service life, and convenient operation.

[0067] The utility model provides an internal thread in the nut 200 and an external thread on the screw rod 110, so that the nut 200 can be tightly connected with the bolt 100 to form a stable fastening effect; the sealing ring 130 can effectively prevent the leakage of liquid, gas or particulate matter during the connection process of the fastener, thereby improving the sealing performance; the matching design of the annular groove 140 and the sealing ring 130 enables the sealing ring 130 to better fit tightly with the head 120, further improving the sealing effect; the fixing ring 150 and the connecting ring 160 can make the fastener more convenient during installation and removal, reduce the difficulty of operation, and ensure the accuracy of the position of the sealing ring 130 in the annular groove 140; the opening of the fixing groove 170 enables the fixing ring 150 to be easily inserted or removed, thereby improving the service life and reliability of the fastener.

[0068] The sealing fastener of the utility model has reliable sealing performance. The tight fit between the sealing ring 130 and the head 120 and the matching design between the annular groove 140 and the sealing ring 130 ensure the sealing effect and avoid leakage of liquid, gas or particulate matter.

[0069] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A sealing fastener, characterized in that: include: Bolt and nut, the bolt comprising: A screw rod, wherein the screw rod is provided with an external thread; A head, located at one end of the screw; A sealing ring, sleeved on the bottom of the head; An annular groove, located at the bottom end of the head, the annular groove matches the sealing ring; There are two fixing rings, which are arranged opposite to each other on the upper surface of the sealing ring in the vertical direction; A connecting ring connected to the other end of the fixing ring; The fixing grooves are arranged on both sides of the head, and the fixing grooves are used for inserting or removing the fixing ring.

2. The sealing fastener according to claim 1, characterized in that: The nut comprises: A rounded edge is located at the top edge of the nut.

3. The sealing fastener according to claim 1, characterized in that: The bolt also includes: The rotation groove is located at an end of the head away from the screw.

4. The sealing fastener according to claim 3, characterized in that: The rotating groove is square or hexagonal.

5. The sealing fastener according to claim 1, characterized in that: The sealing ring is made of rubber.

6. The sealing fastener according to claim 1, characterized in that: The fixing ring and the connecting ring are made of rubber.

7. The sealing fastener according to claim 1, characterized in that: The thickness of the sealing ring is greater than the depth of the annular groove.

8. The sealing fastener according to claim 1, characterized in that: The height of the fixing ring is equal to the thickness of the nut.

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