C-shaped sealing strip

Abstract

The utility model discloses a C-shaped sealing strip, which belongs to the technical field of sealing strips and comprises a main body, contact surfaces are arranged at two ends of the main body, a pressure mechanism is mounted between the two contact surfaces, a contact groove is arranged in the main body, and extrusion mechanisms are mounted in the two ends of the main body. By designing the pressure mechanism and the extrusion mechanism which are simple, the sealing effect can be enhanced through the structure of the sealing strip when the sealing strip of the C-shaped structure is used for sealing, and meanwhile, the convex points can generate certain sealing pressure on the contact part of the cylinder body, so that the sealing effect is further improved, and the service life of the sealing strip is prolonged. When the two sides of the sealing strip make contact with a cylinder body, certain extrusion force can be kept on the two sides of an extrusion point through extrusion on the two sides, friction is increased, meanwhile, sealing pressure is generated on the two protruding points and the cylinder body, the sealing strip can be stable, leakage is prevented, and the sealing effect of the C-shaped sealing strip is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing strips, in particular to a C-shaped sealing strip. Background Art

[0002] Sealing strips are materials used to fill, seal or isolate gaps between objects, usually made of rubber, plastic, metal or composite materials. Sealing strips play an important role in various industries and daily life. The main function of sealing strips is to prevent liquids, gases, dust and other substances from penetrating or leaking through the gaps between objects, achieving sealing, waterproofing, sound insulation, heat preservation and other effects. Sealing strips can also reduce vibration, prevent corrosion, improve safety and comfort. Sealing strips are usually soft, elastic and wear-resistant, and can adapt to gaps of different shapes and sizes. According to specific application requirements, the shape of sealing strips can be strips, rings, belts, etc. The surface is usually designed to be raised, grooved or bristled to increase the sealing effect. Sealing strips are widely used in construction, automobiles, aerospace, electronic products, furniture and other fields. In the construction industry, sealing strips are used for sealing and waterproofing of doors, windows, walls, floors, etc.; in the automotive industry, sealing strips are used for sealing and sound insulation of doors, hoods, sunroofs, etc.; in electronic products, sealing strips are used for dust and water resistance of mobile phones, tablets and other devices.

[0003] The sealing gasket material is ethylene acrylate rubber, which has good temperature resistance, good oil resistance, and small compression permanent deformation. The oil shell seal requires a sealing strip with extremely strict requirements. Generally, the sealing strip can ensure the basic sealing method but it also has shortcomings. The existing sealing strip cannot guarantee the leakage of internal liquid during the bumpy and shaking process when sealing, and it is not stable enough during use, which greatly reduces the use effect of the sealing strip.

[0004] Therefore, it is urgent to provide a C-shaped sealing strip to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the existing sealing strip, due to its simple structure, may cause liquid leakage after being shaken during the sealing process, so that it is unstable during use and has a low sealing degree.

[0006] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a C-shaped sealing strip, comprising a main body, contact surfaces are provided at both ends of the main body, and a pressure mechanism is installed between the two contact surfaces;

[0007] A contact groove is provided inside the main body, and extrusion mechanisms are installed inside two ends of the main body.

[0008] The utility model is further configured as follows: the pressure mechanism comprises a first convex point fixedly connected to the top of the front end of the main body, and the top of the rear end of the main body is fixedly connected to a second convex point.

[0009] Through the above technical solution, when the main body is put into use, the contact groove needs to be contacted with the oil pan first, and then the contact surface will contact the inner wall of the oil shell, and then the pressure mechanism slowly expands to form a sealing extrusion force. Specifically, when the entire sealing strip is put into use, the sealing structure of the entire sealing strip is C-shaped, and the internal C-shaped arc surface is in contact with the arc-shaped roll of the oil pan, and the upper part is in contact with the cylinder plane. After assembly, the first convex point and the second convex point form a certain extrusion with the cylinder body, making the sealing strip more stable. There are two protrusions on the sealing gasket to generate sealing pressure with the cylinder body to achieve the sealing purpose.

[0010] The utility model is further configured as follows: the extrusion mechanism comprises a first extrusion point fixedly connected to the bottom of the front end of the main body, the inner wall of the contact groove is fixedly connected to a second extrusion point, and the first extrusion point is connected to the second extrusion point.

[0011] Through the above technical solution, the contact groove inside the main body is brought into contact with the bottom of the oil shell. At this time, the bottom of the oil shell will squeeze the second extrusion point, so that the extrusion mechanism will perform dynamic extrusion inside. Subsequently, when it is put into use, the first extrusion point will be moved and squeezed, so that both sides of the main body will obtain a certain extrusion force, thereby improving the extrusion capacity and friction force, and both the first extrusion point and the second extrusion point can bulge, thereby improving the sealing performance.

[0012] The utility model is further configured as follows: the contact groove is C-shaped, and the main body cross section is a triangular structure.

[0013] Through the above technical scheme, the contact groove is a C-shaped arc surface, which is in contact with the arc-shaped roll of the oil pan, and the upper part is in contact with the cylinder plane. After assembly, there are two protrusions on the sealing gasket to generate sealing pressure with the cylinder body to achieve the sealing purpose. The upper part of the main body contacts the body, and the lower part is in arc-shaped contact. The main contact method is approximately three-point, forming an approximate triangular structure. The stability of the triangular structure can be guaranteed by bumps and shakes during use, thereby ensuring the stability of the sealing state.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. The utility model can enhance the sealing effect of the C-shaped sealing strip through its own structure by designing a simple pressure mechanism and an extrusion mechanism. At the same time, the convex points can generate a certain sealing pressure on the contact part of the cylinder body, thereby further improving the sealing effect.

[0016] 2. The utility model adopts a simple design of a pressure mechanism and an extrusion mechanism, so that when both sides of the sealing strip are in contact with the cylinder body, the sealing pressure generated by the two protrusions and the cylinder body can make the sealing strip stable and prevent leakage, thereby greatly improving the sealing effect of the C-type sealing strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of a partially cut-away structure of the utility model;

[0019] Figure 3 It is a partially cut-away front view of the utility model;

[0020] Figure 4 It is a partially cut-away right view of the utility model.

[0021] In the figure: 1. main body; 2. contact surface; 3. pressure mechanism; 301. first protrusion; 302. second protrusion; 4. contact groove; 5. extrusion mechanism; 501. first extrusion point; 502. second extrusion point. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0023] See also Figure 1-Figure 4 , a C-type sealing strip, comprising a main body 1, with contact surfaces 2 at both ends of the main body 1, a pressure mechanism 3 installed between the two contact surfaces 2, the pressure mechanism 3 comprising a first convex point 301 fixedly connected to the top of the front end of the main body 1, and a second convex point 302 fixedly connected to the top of the rear end of the main body 1, the first convex point 301 and the second convex point 302 are symmetrically distributed, when the main body 1 is put into use, the contact groove 4 needs to be contacted with the oil pan first, and then the contact surface 2 will contact the inner wall of the oil pan, and then the pressure mechanism 3 is slowly expanded to form a sealing extrusion force, specifically, when the entire sealing strip is put into use, the sealing structure of the entire sealing strip is C-shaped, the internal C-shaped arc surface is in contact with the arc roll of the oil pan, and the upper part is in contact with the plane of the cylinder body, after assembly, the first convex point 301 and the second convex point 302 form a certain extrusion with the cylinder body, making the sealing strip more stable, and there are two protrusions on the sealing gasket to generate sealing pressure with the cylinder body to achieve the sealing purpose;

[0024] like Figure 4As shown, a contact groove 4 is provided inside the main body 1, and extrusion mechanisms 5 are installed inside the two ends of the main body 1. The extrusion mechanism 5 includes a first extrusion point 501 fixedly connected to the bottom of the front end of the main body 1, and a second extrusion point 502 is fixedly connected to the inner wall of the contact groove 4. The first extrusion point 501 and the second extrusion point 502 are connected, and the contact groove 4 inside the main body 1 contacts the bottom of the oil shell. At this time, the bottom of the oil shell will squeeze the second extrusion point 502, so that the extrusion mechanism 5 performs dynamic extrusion inside. Subsequently, when it is put into use, the first extrusion point 501 will be moved and squeezed, so that both sides of the main body 1 will obtain a certain extrusion force, thereby improving the extrusion capacity and friction force, and both the first extrusion point 501 and the second extrusion point 502 can bulge, so that the sealing performance is improved;

[0025] like Figure 4 As shown, the contact groove 4 is C-shaped, and the cross-section of the main body 1 is a triangular structure. The contact groove 4 is a C-shaped arc surface, which is in arc-shaped contact with the oil pan, and the upper part is in contact with the cylinder plane. After assembly, there are two protrusions on the sealing gasket to generate sealing pressure with the cylinder body to achieve the sealing purpose. The upper part of the main body 1 contacts the body, and the lower part is in arc-shaped contact. The main contact method is approximately three-point, forming an approximate triangular structure. The stability of the triangular structure can be guaranteed by bumps and shakes during use, so the stability of the sealing state can be guaranteed.

[0026] When the utility model is in use, when the entire sealing strip is put into use, the sealing structure of the entire sealing strip is C-shaped, the internal C-shaped arc surface is in contact with the arc-shaped roll-up of the oil pan, and the upper part is in contact with the plane of the cylinder body. After assembly, the first convex point 301 and the second convex point 302 form a certain extrusion with the cylinder body. At this point, the main body 1 is in contact with the oil pan, and the contact groove 4 inside the main body 1 is in contact with the bottom of the oil shell. At this time, the bottom of the oil shell will squeeze the second extrusion point 502, so that the extrusion mechanism 5 performs dynamic extrusion inside, and then when it is put into use, the first extrusion point 501 will be moved and squeezed. The contact groove 4 is a C-shaped arc surface, which is in contact with the arc-shaped roll-up of the oil pan, and the upper part is in contact with the plane of the cylinder body. After assembly, there are two protrusions on the sealing gasket that generate sealing pressure with the cylinder body to achieve the sealing purpose.

[0027] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A C-shaped sealing strip, comprising a main body (1), characterized in that: The main body (1) is provided with contact surfaces (2) at both ends, and a pressure mechanism (3) is installed between the two contact surfaces (2); A contact groove (4) is provided inside the main body (1), and extrusion mechanisms (5) are installed inside both ends of the main body (1).

2. A C-shaped sealing strip according to claim 1, characterized in that: The pressure mechanism (3) comprises a first protrusion (301) fixedly connected to the top of the front end of the main body (1), and a second protrusion (302) fixedly connected to the top of the rear end of the main body (1).

3. A C-shaped sealing strip according to claim 2, characterized in that: The first convex points (301) and the second convex points (302) are symmetrically distributed.

4. A C-shaped sealing strip according to claim 1, characterized in that: The squeezing mechanism (5) comprises a first squeezing point (501) fixedly connected to the bottom of the front end of the main body (1), and a second squeezing point (502) is fixedly connected to the inner wall of the contact groove (4).

5. A C-shaped sealing strip according to claim 4, characterized in that: The first extrusion point (501) is connected to the second extrusion point (502).

6. A C-shaped sealing strip according to claim 1, characterized in that: The contact groove (4) is C-shaped.

7. A C-shaped sealing strip according to claim 1, characterized in that: The cross section of the main body (1) is a triangular structure.

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