Butyronitrile soft valve seat

Abstract

The utility model discloses a butyronitrile soft valve seat which comprises a valve body, a valve seat body is installed in the valve body, two sets of annular installation grooves which are oppositely arranged in parallel are formed in the inner wall of the valve seat body, annular elastic rings are installed in the annular installation grooves, a convex lug is arranged on the upper portion of the outer side of the valve seat body, and the convex lug is connected with the valve seat body. Anti-skid lines are arranged on the outer side surfaces of the convex lugs, positioning grooves used for installing the convex lugs are formed in the two ends of the valve body, and the inner walls of the positioning grooves are evenly coated with sealant layers. The convex lugs are arranged on the outer side of the valve seat body, the positioning grooves are formed in the two ends of the valve body and coated with the sealing glue layers, and the annular elastic ring, the anti-skid lines and other structures are arranged, so that the valve seat body is rapidly and accurately installed in the valve body, and sealing is good; the sealing performance is improved, the service life of the valve seat body is prolonged, stability and reliability are ensured, and the overall performance is improved to better meet the working requirements of a fluid system.

Description

Technical Field

[0001] The utility model relates to the technical field of valve seats, in particular to a nitrile soft valve seat. Background Art

[0002] In the fluid conveying system, the valve is the key component to control the flow of fluid, and the valve seat is an important component of the valve, and its performance directly affects the sealing performance and service life of the valve.

[0003] Traditional valve seats have some problems during installation and use, such as complex installation, poor sealing performance, and difficulty in withstanding fluid pressure and impact force.

[0004] For this purpose, we propose a nitrile soft valve seat. Utility Model Content

[0005] The main purpose of the utility model is to provide a nitrile soft valve seat. In order to prevent the problem of complex installation, a lug is arranged on the outer side of the valve seat body, positioning grooves are arranged at both ends of the valve body, and a sealing rubber layer is coated on the inner wall of the positioning groove, so that the valve seat body can be quickly and accurately installed inside the valve body without using complex tools, which greatly improves the installation efficiency; in order to prevent the problem of poor sealing performance, an annular elastic ring is arranged. When the fluid pressure acts on the valve seat body, the annular elastic ring will deform, so that the connection between the valve seat body and the valve body is tighter, and the sealing effect is improved; at the same time, the cooperation of the lug and the positioning groove and the setting of the sealing rubber layer further prevent fluid leakage; in order to prevent the problem of being difficult to withstand fluid pressure and impact force, the annular elastic ring can absorb the impact force brought by the fluid pressure, reduce the stress on the valve seat body, and extend the service life of the valve seat body; the cooperation of the lug and the positioning groove and the design of the anti-slip pattern ensure the stability and reliability of the valve seat body under the action of the fluid, reduce the risk of the valve seat body being damaged due to pressure and impact force, and can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A nitrile soft valve seat, comprising a valve body, a valve seat body is installed inside the valve body, two sets of relatively parallel annular installation grooves are opened on the inner wall of the valve seat body, and an annular elastic ring is installed inside the annular installation groove;

[0008] A lug is provided on the upper outer portion of the valve seat body, and an anti-slip pattern is provided on the outer surface of the lug. Positioning grooves for installing the lugs are provided at both ends of the valve body, and the inner wall of the positioning groove is evenly coated with a sealing rubber layer.

[0009] By adopting the above technical solution, first, insert the valve seat body into the interior of the valve body. At this time, the lugs on the outer side of the valve seat body and the positioning grooves at both ends of the valve body are not fully aligned. As the valve seat body gradually penetrates deeper into the valve body, when the valve seat body reaches the correct installation position, align the lugs and insert them into the positioning grooves. Since the inner wall of the positioning groove is coated with a sealant layer, after the lugs are inserted, the sealant layer is extruded, filling the tiny gaps between the lugs and the positioning grooves, enhancing the sealing performance at the installation location and preventing fluid from leaking from the connection part between the valve body and the valve seat body;

[0010] When the fluid flows in the valve body, the valve seat body needs to withstand the pressure and impact force of the fluid. The annular elastic ring inside the annular installation groove plays an important buffering role here. The annular elastic ring is made of elastic material. When the fluid pressure acts on the valve seat body, the annular elastic ring will deform accordingly according to the magnitude of the pressure. On the one hand, it can absorb part of the impact force brought by the fluid pressure, reduce the stress on the valve seat body, and thus extend the service life of the valve seat body; on the other hand, the deformation of the annular elastic ring can make the connection between the valve seat body and the valve body tighter, enhance the sealing effect, and prevent fluid leakage;

[0011] The lugs on the upper part of the outer side of the valve seat body also play a role in fixing the position of the valve seat body during use. The cooperation between the lugs and the positioning grooves and the design of the anti-slip patterns can prevent the valve seat body from shifting or rotating under the action of the fluid, ensuring the stability and reliability of the valve seat;

[0012] Through the synergistic effect of structures such as the annular elastic ring, lugs, positioning grooves, and sealant layer, stable installation and good sealing in the fluid system are achieved. At the same time, it can effectively buffer the fluid pressure, improve the service life and performance of the valve seat.

[0013] Furthermore, bosses are provided at both the top and bottom of the valve seat body.

[0014] By adopting the above technical solution, when inserting the valve seat body into the interior of the valve body, the bosses can play a role in installation guidance. Since the bosses have a certain height and specific shape, during the insertion process, they can make initial contact and positioning with the inner wall of the valve body, helping the installer quickly determine the correct installation direction of the valve seat body, ensuring that the valve seat body can be accurately installed at the predetermined position inside the valve body, and improving the installation efficiency and accuracy;

[0015] When the fluid flows through the valve body, the valve seat body will be subjected to the impact force and pressure of the fluid. The bosses increase the contact area between the valve seat body and the valve body, making the installation of the valve seat body in the valve body more stable. This stability can reduce the swaying and displacement of the valve seat body under the action of the fluid, ensuring the normal operation of the valve;

[0016] The contact between the auxiliary boss and the inner wall of the valve body can form a certain sealing effect. When the fluid pressure acts on the valve seat body, the boss will be squeezed, further enhancing the fit with the inner wall of the valve body, thereby assisting the annular elastic ring and the sealant layer to jointly improve the overall sealing performance of the valve seat and prevent fluid leakage.

[0017] Furthermore, an annular convex ring surrounding the outer periphery is provided on the outer side of the valve seat body.

[0018] By adopting the above technical solution, when the valve seat body is inserted into the valve body, the outer diameter of the annular convex ring is slightly larger than the outer diameter of other parts of the valve seat body. During the insertion process, installers can judge whether the insertion depth of the valve seat body is appropriate by sensing the contact between the annular convex ring and the valve body inlet, ensuring that the valve seat body can be accurately installed in the correct position, improving the accuracy and efficiency of installation, and thus playing an auxiliary positioning role;

[0019] When the fluid flows in the valve body, a tight contact is formed between the annular convex ring and the inner wall of the valve body. This contact can increase the sealing area and pressure, assisting structures such as the annular elastic ring, lugs, and sealant layer to jointly improve the overall sealing effect of the valve seat and prevent fluid from leaking through the gap between the valve seat body and the valve body;

[0020] The annular convex ring increases the structural strength and stiffness of the valve seat body. Under the action of fluid pressure and impact force, the annular convex ring can disperse part of the stress, reducing the risk of deformation and damage of the valve seat body; at the same time, it can also prevent the valve seat body from undergoing excessive radial deformation during long-term use, ensuring the normal working performance and service life of the valve.

[0021] Furthermore, the boss and the annular convex ring are located between two groups of annular installation grooves.

[0022] By adopting the above technical solution, this layout helps to improve the accuracy and stability of installation. The boss and the annular convex ring, as obvious structural features, are located between two groups of annular installation grooves, enabling installers to quickly judge whether the valve seat body is installed in place by observing the relative position relationship between these structures and the valve body when inserting the valve seat body into the valve body; at the same time, this layout can also prevent the valve seat body from tilting or rotating to a certain extent during the insertion process, ensuring the smooth progress of installation;

[0023] The boss, the annular convex ring, and the annular elastic ring in the annular installation groove cooperate with each other to jointly form a multi-layer sealing structure. The annular elastic ring provides the main sealing function, while the boss and the annular convex ring further enhance the sealing effect through close contact with the inner wall of the valve body. This multi-layer sealing structure can effectively prevent fluid leakage and improve the sealing reliability of the valve;

[0024] The boss and the annular convex ring are located between the two sets of annular mounting grooves, forming a relatively strong structural system. Under the pressure and impact force of the fluid, this structural system can disperse the stress and reduce the risk of deformation of the valve seat body; at the same time, the boss and the annular convex ring can also limit the excessive deformation of the annular elastic ring, ensuring that the annular elastic ring can always play a good sealing and buffering role;

[0025] During the use of the valve, the boss and the annular convex ring can form a certain friction and clamping force with the inner wall of the valve body, and the auxiliary lugs, positioning grooves and sealing rubber layer can jointly fix the position of the valve seat body to prevent the valve seat body from displacement or loosening under the action of the fluid, thereby ensuring the normal operating performance of the valve.

[0026] Furthermore, grooves matching with the bosses are formed on the inner walls of the top and bottom ends of the valve body.

[0027] By adopting the above technical solution, when the valve seat body is inserted into the valve body, the design of the boss and the groove plays a role of precise guidance and positioning. Since the boss and the groove fit each other, the installer can insert the valve seat body by aligning the boss with the groove to ensure that the valve seat body can be quickly and accurately installed in the correct position in the valve body. This design reduces the uncertainty in the installation process and improves the installation efficiency and accuracy.

[0028] When the valve seat body is installed in place, the boss and the groove fit tightly together to form an additional sealing line of defense. Under the action of fluid pressure, the boss is tightly pressed into the groove, further enhancing the sealing effect between the valve seat body and the valve body, preventing fluid from leaking from the joint between the valve seat and the valve body;

[0029] The cooperation between the boss and the groove increases the stability of the valve seat body in the valve body. Under the impact and pressure of the fluid, the interaction between the boss and the groove can limit the movement and shaking of the valve seat body, ensuring that the valve maintains stable performance during operation;

[0030] The matching structure of the groove and the boss can help fix the valve seat body to a certain extent, and work together with the lugs, positioning grooves, and sealing rubber layers to make the valve seat body more firmly installed in the valve body, reducing the risk of loosening or displacement of the valve seat body due to vibration or external force.

[0031] Furthermore, an inner wall of the valve body is provided with an annular groove having a corresponding shape and size.

[0032] By adopting the above technical solution, the annular clamping groove provides clear positioning for the installation of the valve seat body. When inserting the valve seat body into the valve body, the installer can align the annular convex ring on the valve seat body with the annular clamping groove to ensure that the valve seat body can be accurately installed in the correct position inside the valve body. This design makes the installation process more convenient and efficient, reducing the possibility of installation errors;

[0033] The annular clamping groove cooperates with the corresponding structure on the valve seat body to form a tighter seal; for example, when the annular convex ring is snapped into the annular clamping groove, the contact between the two can effectively prevent fluid from leaking through the gap between the valve seat body and the valve body; at the same time, the annular clamping groove can also act together with the annular elastic ring in the annular installation groove to further enhance the sealing effect;

[0034] The annular clamping groove can provide additional support and fixation for the valve seat body. Under the action of the fluid pressure and impact force, the structure on the valve seat body cooperates with the annular clamping groove to limit the movement and deformation of the valve seat body, thereby improving the overall structural stability of the valve, which helps to ensure that the valve maintains good performance and reliability during long-term use;

[0035] The annular clamping groove cooperates with the structure on the valve seat body to prevent the valve seat body from rotating or displacing to a certain extent during use. This fixing and positioning function helps to maintain the sealing performance and operating performance of the valve, reducing the risk of failure caused by the loosening of the valve seat body.

[0036] Compared with the prior art, the utility model has the following beneficial effects:

[0037] (1) For the nitrile soft valve seat of the utility model, by arranging lugs on the outer side of the valve seat body, providing positioning grooves at both ends of the valve body, and coating a sealing glue layer on the inner wall of the positioning grooves, the valve seat body can be quickly and accurately installed inside the valve body, and at the same time, a good sealing effect is achieved; the installation process is simple and fast, without the need to use complex tools, greatly improving the installation efficiency; the setting of the sealing glue layer fills the tiny gap between the lugs and the positioning grooves, effectively preventing fluid leakage.

[0038] (2) For the nitrile soft valve seat of the utility model, the setting of the annular elastic ring further enhances the sealing performance of the valve seat; when the fluid pressure acts on the valve seat body, the annular elastic ring will deform, making the connection between the valve seat body and the valve body tighter, thereby improving the sealing effect.

[0039] (3) For the nitrile soft valve seat of the utility model, the annular elastic ring can absorb the impact force brought by the fluid pressure, reduce the stress on the valve seat body, thereby prolonging the service life of the valve seat body; during the fluid flow process, the annular elastic ring plays a buffering role, reducing the risk of damage to the valve seat body due to bearing pressure and impact force.

[0040] (4) A nitrile soft valve seat of the present utility model, the cooperation between the lug and the positioning groove and the design of the anti-slip pattern ensure the stability and reliability of the valve seat body under the action of fluid, prevent the valve seat body from shifting or rotating, and ensure the normal working performance of the valve; at the same time, the synergistic effect of these structures improves the overall performance of the valve seat, enabling it to better meet the working requirements of the fluid system. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a schematic structural view of a nitrile soft valve seat of the present utility model.

[0042] Figure 2 is a schematic internal structural view of a nitrile soft valve seat of the present utility model.

[0043] Figure 3 is a Figure 2 magnified view of part A of the nitrile soft valve seat of the present utility model.

[0044] In the figure: 1, valve body; 2, valve seat body; 3, annular installation groove; 4, annular elastic ring; 5, lug; 6, anti-slip pattern; 7, positioning groove; 8, sealant layer; 9, annular clamping groove; 10, groove; 11, annular convex ring; 12, boss. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0045] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0046] In order to prevent the problem of complex installation, lugs are provided on the outer side of the valve seat body, positioning grooves are opened at both ends of the valve body, and a sealant layer is coated on the inner wall of the positioning groove, so that the valve seat body can be quickly and accurately installed inside the valve body without using complex tools, greatly improving the installation efficiency; in order to prevent the problem of poor sealing performance, an annular elastic ring is provided. When the fluid pressure acts on the valve seat body, the annular elastic ring will deform, making the connection between the valve seat body and the valve body tighter and improving the sealing effect; at the same time, the cooperation between the lug and the positioning groove and the setting of the sealant layer further prevent fluid leakage; in order to prevent the problem of being unable to withstand fluid pressure and impact force, the annular elastic ring can absorb the impact force brought by the fluid pressure, reduce the stress on the valve seat body, and extend the service life of the valve seat body; the cooperation between the lug and the positioning groove and the design of the anti-slip pattern ensure the stability and reliability of the valve seat body under the action of fluid, reducing the risk of damage to the valve seat body due to pressure and impact force, such as Figure 1 , Figure 2 , Figure 3As shown in the figure, a nitrile soft valve seat includes a valve body 1, and a valve seat body 2 is installed inside the valve body 1. Two sets of relatively parallel annular installation grooves 3 are provided on the inner wall of the valve seat body 2, and an annular elastic ring 4 is installed inside the annular installation groove 3;

[0047] On the upper part of the outer side of the valve seat body 2, there are lugs 5. Anti-slip patterns 6 are provided on the outer surface of the lugs 5. Positioning grooves 7 for installing the lugs 5 are provided at both ends of the valve body 1, and a sealing glue layer 8 is evenly coated on the inner wall of the positioning grooves 7.

[0048] During use, first, insert the valve seat body 2 into the valve body 1. At this time, the lugs 5 on the outer side of the valve seat body 2 and the positioning grooves 7 at both ends of the valve body 1 are not completely aligned. As the valve seat body 2 gradually penetrates into the valve body 1, when the valve seat body 2 reaches the correct installation position, align the lugs 5 with the positioning grooves 7 and insert them. Since the sealing glue layer 8 is coated on the inner wall of the positioning grooves 7, after the lugs 5 are inserted, the sealing glue layer 8 is squeezed, filling the tiny gaps between the lugs 5 and the positioning grooves 7, enhancing the sealing performance at the installation part and preventing fluid from leaking from the connection part between the valve body 1 and the valve seat body 2;

[0049] When fluid flows in the valve body 1, the valve seat body 2 needs to bear the pressure and impact force of the fluid. The annular elastic ring 4 inside the annular installation groove 3 plays an important buffering role here. The annular elastic ring 4 is made of elastic material. When the fluid pressure acts on the valve seat body 2, the annular elastic ring 4 will deform accordingly according to the pressure magnitude. On the one hand, it can absorb part of the impact force brought by the fluid pressure, reduce the stress on the valve seat body 2, and thus extend the service life of the valve seat body 2; on the other hand, the deformation of the annular elastic ring 4 can make the connection between the valve seat body 2 and the valve body 1 closer, enhance the sealing effect, and prevent fluid leakage;

[0050] The lugs 5 on the upper part of the outer side of the valve seat body 2 also play a role in fixing the position of the valve seat body 2 during use. The cooperation between the lugs 5 and the positioning grooves 7 and the design of the anti-slip patterns 6 can prevent the valve seat body 2 from displacing or rotating under the action of the fluid, ensuring the stability and reliability of the valve seat;

[0051] Through the synergistic effect of structures such as the annular elastic ring 4, the lugs 5, the positioning grooves 7, and the sealing glue layer 8, stable installation and good sealing in the fluid system are achieved. At the same time, it can effectively buffer the fluid pressure, improve the service life and performance of the valve seat.

[0052] Exemplarily, as Figure 1 、 Figure 2 shown, the present utility model further includes that convex platforms 12 are provided at both the top and bottom of the valve seat body 2.

[0053] During use, when the valve seat body 2 is inserted into the valve body 1, the boss 12 can play a role in installation guidance. Due to the certain height and specific shape of the boss 12, during the insertion process, it can make initial contact and positioning with the inner wall of the valve body 1, helping the installer quickly determine the correct installation direction of the valve seat body 2, ensuring that the valve seat body 2 can be accurately installed at the predetermined position within the valve body 1, and improving the installation efficiency and accuracy.

[0054] When fluid flows through the valve body 1, the valve seat body 2 will be subjected to the impact force and pressure of the fluid. The boss 12 increases the contact area between the valve seat body 2 and the valve body 1, making the installation of the valve seat body 2 in the valve body 1 more stable. This stability can reduce the shaking and displacement of the valve seat body 2 under the action of the fluid, ensuring the normal operation of the valve.

[0055] The contact between the auxiliary boss 12 and the inner wall of the valve body 1 can form a certain sealing effect. When the fluid pressure acts on the valve seat body 2, the boss 12 will be squeezed, further enhancing the fit with the inner wall of the valve body 1, thereby assisting the annular elastic ring 4 and the sealing adhesive layer 8 to jointly improve the overall sealing performance of the valve seat and prevent fluid leakage.

[0056] Exemplarily, as Figure 1 、 Figure 2 shown, the present utility model further includes that an annular convex ring 11 surrounding the outer periphery is provided on the outer side of the valve seat body 2.

[0057] During use, when the valve seat body 2 is inserted into the valve body 1, the outer diameter of the annular convex ring 11 is slightly larger than the outer diameter of other parts of the valve seat body 2, so that during the insertion process, the installer can judge whether the insertion depth of the valve seat body 2 is appropriate by sensing the contact between the annular convex ring 11 and the inlet of the valve body 1, ensuring that the valve seat body 2 can be accurately installed at the correct position, improving the installation accuracy and efficiency, and thus can play a role in assisting positioning.

[0058] When fluid flows in the valve body 1, a tight contact is formed between the annular convex ring 11 and the inner wall of the valve body 1. This contact can increase the sealing area and pressure, assisting structures such as the annular elastic ring 4, the lug 5, and the sealing adhesive layer 8 to jointly improve the overall sealing effect of the valve seat and prevent fluid from leaking from the gap between the valve seat body 2 and the valve body 1.

[0059] The annular convex ring 11 increases the structural strength and stiffness of the valve seat body 2. Under the action of the pressure and impact force of the fluid, the annular convex ring 11 can disperse part of the stress, reducing the risk of deformation and damage of the valve seat body 2; at the same time, it can also prevent the valve seat body 2 from undergoing excessive radial deformation during long-term use, ensuring the normal working performance and service life of the valve.

[0060] Exemplarily, as Figure 1 、Figure 2 As shown, the utility model further includes that the boss 12 and the annular convex ring 11 are located between two groups of annular mounting grooves 3.

[0061] During use, this layout helps to improve the installation accuracy and stability. The boss 12 and the annular convex ring 11, as obvious structural features, are located between two groups of annular mounting grooves 3. When the valve seat body 2 is inserted into the valve body 1, the installer can quickly judge whether the valve seat body 2 is installed in place by observing the relative position relationship between these structures and the valve body 1. At the same time, this layout can also prevent the valve seat body 2 from tilting or rotating to a certain extent during the insertion process, ensuring the smooth progress of installation.

[0062] The boss 12, the annular convex ring 11 and the annular elastic ring 4 in the annular mounting groove 3 cooperate with each other to jointly form a multi - seal structure. The annular elastic ring 4 provides the main sealing function, while the boss 12 and the annular convex ring 11 further enhance the sealing effect by closely contacting the inner wall of the valve body 1. This multi - seal structure can effectively prevent fluid leakage and improve the sealing reliability of the valve.

[0063] The boss 12 and the annular convex ring 11 are located between two groups of annular mounting grooves 3, forming a relatively strong structural system. Under the action of fluid pressure and impact force, this structural system can disperse stress and reduce the risk of deformation of the valve seat body 2. At the same time, the boss 12 and the annular convex ring 11 can also limit the excessive deformation of the annular elastic ring 4, ensuring that the annular elastic ring 4 can always play a good sealing and buffering role.

[0064] During the use of the valve, the boss 12 and the annular convex ring 11 can form a certain frictional force and clamping force with the inner wall of the valve body 1, assisting the lug 5, the positioning groove 7 and the sealing glue layer 8 to jointly fix the position of the valve seat body 2, preventing the valve seat body 2 from displacing or loosening under the action of fluid and ensuring the normal working performance of the valve.

[0065] Exemplarily, as Figure 2 shown, the utility model further includes that the inner walls of the top and bottom of the valve body 1 are provided with grooves 10 that fit the boss 12.

[0066] During use, when the valve seat body 2 is inserted into the valve body 1, the design of the boss 12 and the groove 10 plays an accurate guiding and positioning role. Since the boss 12 and the groove 10 fit each other, the installer can insert the valve seat body 2 by aligning the boss 12 with the groove 10, ensuring that the valve seat body 2 can be quickly and accurately installed in the correct position in the valve body 1. This design reduces the uncertainty during the installation process and improves the installation efficiency and accuracy.

[0067] After the valve seat body 2 is installed in place, the boss 12 and the groove 10 are closely fitted, forming an additional sealing line of defense. Under the action of fluid pressure, the boss 12 is tightly pressed into the groove 10, further enhancing the sealing effect between the valve seat body 2 and the valve body 1 and preventing fluid from leaking at the joint between the valve seat and the valve body;

[0068] The fit between the boss 12 and the groove 10 increases the stability of the valve seat body 2 within the valve body 1. Under the action of fluid impact and pressure, the interaction between the boss 12 and the groove 10 can limit the movement and wobbling of the valve seat body 2, ensuring stable performance of the valve during operation;

[0069] The fitting structure of the groove 10 and the boss 12 can assist in fixing the valve seat body 2 to a certain extent. Acting together with structures such as the lug 5, the positioning groove 7, and the sealing adhesive layer 8, the valve seat body 2 is more firmly installed within the valve body 1, reducing the risk of loosening or displacement of the valve seat body 2 due to vibration or external forces.

[0070] Exemplarily, as Figure 2 shown, the present utility model further includes that the inner wall of the valve body 1 is provided with an annular clamping groove 9 with corresponding shape and size.

[0071] During use, the annular clamping groove 9 provides clear positioning for the installation of the valve seat body 2. When inserting the valve seat body 2 into the valve body 1, the installer can align the annular convex ring 11 on the valve seat body 2 with the annular clamping groove 9 to ensure that the valve seat body 2 can be accurately installed in the correct position within the valve body 1. This design makes the installation process more convenient and efficient, reducing the possibility of installation errors;

[0072] The cooperation between the annular clamping groove 9 and the corresponding structure on the valve seat body 2 can form a tighter seal; for example, when the annular convex ring 11 is snapped into the annular clamping groove 9, the contact between the two can effectively prevent fluid from leaking through the gap between the valve seat body 2 and the valve body 1; at the same time, the annular clamping groove 9 can also act together with the annular elastic ring 4 within the annular installation groove 3 to further enhance the sealing effect;

[0073] The annular clamping groove 9 can provide additional support and fixation for the valve seat body 2. Under the action of fluid pressure and impact force, the structure on the valve seat body 2 and the annular clamping groove 9 cooperate with each other to limit the movement and deformation of the valve seat body 2, thereby improving the overall structural stability of the valve, which helps to ensure good performance and reliability of the valve during long-term use;

[0074] The cooperation between the annular clamping groove 9 and the structure on the valve seat body 2 can prevent the valve seat body 2 from rotating or displacing during use to a certain extent. This fixing and positioning effect helps to maintain the sealing performance and operating performance of the valve, reducing the risk of failures caused by loosening of the valve seat body 2.

[0075] It should be noted that the present utility model is a nitrile soft valve seat. When inserting the valve seat body 2 into the interior of the valve body 1, during the insertion process, pay attention to observing the contact situation between the boss 12 and the annular convex ring 11 of the valve seat body 2 and the inner wall of the valve body 1 to ensure the correct insertion direction. The installer can initially judge the insertion depth of the valve seat body 2 by sensing the contact between the annular convex ring 11 and the inlet of the valve body 1;

[0076] As the valve seat body 2 gradually penetrates into the valve body 1, observe the relative positional relationship between the structure on the valve seat body 2 and the valve body 1. When the valve seat body 2 approaches the correct installation position, ensure that the boss 12 corresponds to the grooves 10 on the inner walls of the top and bottom ends of the valve body 1, and at the same time, the annular convex ring 11 is generally aligned with the annular slot 9 on the inner wall of the valve body 1;

[0077] When the valve seat body 2 reaches the correct installation position, insert the lug 5 into the positioning slots 7 at both ends of the valve body 1. During the insertion process, since the inner wall of the positioning slot 7 is coated with a sealant layer 8, the lug 5 will squeeze the sealant layer 8 to fill the tiny gap between the lug 5 and the positioning slot 7.

[0078] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A nitrile soft valve seat, comprising a valve body (1), characterized in that, Inside the valve body (1), a valve seat body (2) is installed. Two groups of annular installation grooves (3) are provided in parallel on the inner wall of the valve seat body (2), and an annular elastic ring (4) is installed inside the annular installation groove (3). On the upper part of the outer side of the valve seat body (2), there are lugs (5). Anti-slip lines (6) are provided on the outer surface of the lugs (5). Positioning grooves (7) for installing the lugs (5) are provided at both ends of the valve body (1), and a sealing glue layer (8) is evenly coated on the inner wall of the positioning groove (7).

2. The nitrile soft valve seat according to claim 1, characterized in that: Bosses (12) are provided at both the top and bottom of the valve seat body (2).

3. A nitrile soft valve seat according to claim 1, characterized in that: An annular convex ring (11) surrounding the outer periphery is provided on the outer side of the valve seat body (2).

4. A nitrile soft valve seat according to claim 2, characterized in that: The bosses (12) and the annular convex ring (11) are located between the two groups of annular installation grooves (3).

5. A nitrile soft valve seat according to claim 2, characterized in that: Grooves (10) that fit the bosses (12) are provided on the inner walls at the top and bottom of the valve body (1).

6. The nitrile rubber soft valve seat according to claim 1, characterized in that: An annular clamping groove (9) with a matching shape and size is provided on the inner wall of the valve body (1).

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