Improved pneumatic high-temperature valve

Abstract

The utility model discloses an improved pneumatic high-temperature valve which comprises a valve body, an air inlet connector is arranged on the rear side of the valve body, an air outlet connector is arranged on the front side of the valve body, a rotary air cylinder is arranged on the valve body, a valve shaft and a sealing cover are arranged in the valve body, and the valve shaft is arranged on the right side in front of the air inlet connector. According to the utility model, through the arrangement of the main retention structure, when the high-temperature-resistant sealing ring is embedded into the sealing groove, the first retention block is inserted into the first positioning groove, then the threaded rod is rotated, and the threaded rod rotates to drive the insertion rod to be inserted into the first retention block, so that the high-temperature-resistant sealing ring can be fixed in the sealing groove; the high-temperature-resistant sealing ring is prevented from falling off to affect the sealing effect under the influence of multiple times of opening and closing and strong airflow, meanwhile, when the high-temperature-resistant sealing ring needs to be replaced after being used for a long time, the high-temperature-resistant sealing ring can be taken out and replaced by sliding an inserting rod out of a first fixing block and pinching a convex plate, and convenience and rapidness are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic high-temperature valves, in particular to an improved pneumatic high-temperature valve. Background Art

[0002] In the prior art, the patent with announcement number CN219432455U discloses an improved pneumatic high-temperature valve, which includes a valve body, a valve shaft and a cover are arranged in the valve body, the valve shaft is arranged on the right side in front of the air inlet interface, the power output end of the rotary cylinder is connected to the valve shaft, the valve shaft is connected to the cover through a connecting rod, the cover covers the front end of the air inlet interface, a sealing groove is arranged on the rear side of the cover, a high-temperature resistant sealing ring is arranged in the sealing groove, and the high-temperature resistant sealing ring is sealed with the air inlet interface. Since the cover and the valve shaft are arranged in the valve body, and the valve shaft is arranged on the right side in front of the air inlet interface, the cover is arranged at the front end of the air inlet interface, after the cover is rotated and opened, the cover and the valve shaft are not easy to directly contact the high-temperature airflow and withstand the high temperature, so as to prevent the valve shaft and the cover from deforming. There is no obstacle in the air inlet interface, which reduces the airflow resistance, has high ventilation and exhaust efficiency, and the high-temperature resistant sealing ring is sealed with the air inlet interface to achieve a good sealing effect. The exhaust gas is not easy to leak, and safety accidents are not easy to occur, so that the valve is suitable for high-temperature environments of exhaust gas treatment.

[0003] However, the above-mentioned device has the following technical problems during actual use: the high-temperature resistant sealing ring is arranged in the sealing groove on the cover, and no certain retaining structure is provided. When the cover is opened and closed multiple times and under the influence of strong airflow, the high-temperature resistant sealing ring is easy to fall out of the sealing groove, thereby affecting the sealing effect of the air inlet interface.

[0004] Therefore, an improved pneumatic high temperature valve is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide an improved pneumatic high-temperature valve to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an improved pneumatic high-temperature valve, comprising a valve body, an air inlet interface is arranged on the rear side of the valve body, an air outlet interface is arranged on the front side of the valve body, a rotary cylinder is arranged on the valve body, a valve shaft and a sealing cover are arranged in the valve body, the valve shaft is arranged on the right side in front of the air inlet interface, the power output end of the rotary cylinder is connected with the valve shaft, the valve shaft is connected with the sealing cover through a connecting rod, the sealing cover covers the front end surface of the air inlet interface, a sealing groove is arranged on the rear side surface of the sealing cover, a high-temperature resistant sealing ring is arranged in the sealing groove, and the high-temperature resistant sealing ring is sealed with the air inlet interface; two main retaining structures and two auxiliary retaining structures are arranged on the sealing cover and the high-temperature resistant sealing ring, the two main retaining structures are arranged relatively, the two auxiliary retaining structures are arranged relatively, and the main retaining structure The structure includes a supporting plate, a threaded rod is threadedly installed on the supporting plate, a sliding plate is rotatably installed on the bottom of the threaded rod, and both sides of the sliding plate are slidably installed on the supporting plate, a first positioning groove is opened on the inner wall of the sealing groove, a first fixing block is inserted in the first positioning groove, the first fixing block is installed on the high temperature resistant sealing ring, a convex plate is installed on the first fixing block, two plug-in rods are installed on the bottom of the sliding plate, the plug-in rods are inserted into the sealing cover and the first fixing block, the auxiliary fixing structure includes a second fixing block, the second fixing block is installed on the high temperature resistant sealing ring, a second positioning groove is opened on the inner wall of the sealing groove, the second fixing block is inserted in the second positioning groove, movable blocks are slidably installed on the inner walls of both sides of the second positioning groove, a limiting groove is opened on the second fixing block, and the movable block is movably installed in the limiting groove.

[0007] Preferably, a sliding groove is provided on the inner wall of the second positioning groove, and the movable block is slidably installed in the sliding groove.

[0008] Preferably, a retaining spring is provided in the sliding groove, one end of the retaining spring is mounted on the movable block, and the other end of the retaining spring is mounted on the inner wall of the sliding groove.

[0009] Preferably, a T-shaped slide groove is provided on the support plate, a T-shaped slider is installed on the sliding plate, and the T-shaped slider is slidably installed in the T-shaped slide groove.

[0010] Preferably, a rotation groove is formed on the sliding plate, a rotation shaft is installed at the bottom of the threaded rod, and the rotation shaft is rotatably installed in the rotation groove.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) The utility model, through the setting of the main retaining structure, embeds the high-temperature resistant sealing ring into the sealing groove, and at the same time, inserts the first retaining block into the first positioning groove, and then rotates the threaded rod, and the rotation of the threaded rod drives the plug-in rod to be plugged into the first retaining block, thereby fixing the high-temperature resistant sealing ring in the sealing groove to prevent the high-temperature resistant sealing ring from falling and affecting the sealing effect due to repeated opening and closing and the influence of strong airflow. At the same time, when the high-temperature resistant sealing ring needs to be replaced after long-term use, the plug-in rod is slid out of the first retaining block, and the convex plate is pinched to take out and replace the high-temperature resistant sealing ring, which is convenient and quick.

[0013] (2) The utility model, through the setting of the auxiliary retaining structure, installs the high temperature resistant sealing ring in the sealing groove, and inserts the second retaining block into the second positioning groove at the same time. At this time, the movable block will slide into the limiting groove under the elastic force of the retaining spring to fix the second retaining block, thereby limiting the two side edges of the high temperature resistant sealing ring, thereby improving the stability of the high temperature resistant sealing ring during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 It is a side view structural schematic diagram of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the convex plate, the support plate and the first retaining block of the utility model;

[0017] Figure 4 It is a cross-sectional view of the main retaining structure of the utility model;

[0018] Figure 5 It is a cross-sectional view of the auxiliary retaining structure of the utility model;

[0019] In the figure: 1. valve body; 2. air inlet interface; 3. air outlet interface; 4. rotary cylinder; 5. valve shaft; 6. sealing cover; 7. connecting rod; 8. high temperature resistant sealing ring; 9. support plate; 91. threaded rod; 92. sliding plate; 93. first retaining block; 94. first positioning groove; 95. convex plate; 96. plug-in rod; 97. T-shaped slider; 98. T-shaped slide groove; 99. rotating shaft; 910. rotating groove; 10. second retaining block; 101. second positioning groove; 102. movable block; 103. limiting groove; 104. sliding groove; 105. retaining spring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example: See Figure 1-5 The utility model provides a technical solution: an improved pneumatic high-temperature valve, comprising a valve body 1, an air inlet interface 2 is arranged on the rear side of the valve body 1, an air outlet interface 3 is arranged on the front side of the valve body 1, a rotary cylinder 4 is arranged on the valve body 1, a valve shaft 5 and a sealing cover 6 are arranged in the valve body 1, the valve shaft 5 is arranged on the right side in front of the air inlet interface 2, the power output end of the rotary cylinder 4 is connected to the valve shaft 5, the valve shaft 5 is connected to the sealing cover 6 through a connecting rod 7, the sealing cover 6 covers the front end surface of the air inlet interface 2, a sealing groove is arranged on the rear side surface of the sealing cover 6, a high-temperature resistant sealing ring 8 is arranged in the sealing groove, and the high-temperature resistant sealing ring 8 is sealed in close contact with the air inlet interface 2 ; Two main retaining structures and two auxiliary retaining structures are arranged on the sealing cover 6 and the high temperature resistant sealing ring 8. The two main retaining structures are arranged opposite to each other, and the two auxiliary retaining structures are arranged opposite to each other. The main retaining structure includes a support plate 9, a threaded rod 91 is threadedly installed on the support plate 9, a sliding plate 92 is rotatably installed at the bottom of the threaded rod 91, and both sides of the sliding plate 92 are slidably installed on the support plate 9, a first positioning groove 94 is opened on the inner wall of the sealing groove, a first retaining block 93 is inserted in the first positioning groove 94, the first retaining block 93 is installed on the high temperature resistant sealing ring 8, a convex plate 95 is installed on the first retaining block 93, and the bottom of the sliding plate 92 Two plug-in rods 96 are installed, and the plug-in rods 96 are plugged into the cover 6 and the first retaining block 93. A T-shaped slide groove 98 is provided on the support plate 9, and a T-shaped slider 97 is installed on the sliding plate 92. The T-shaped slider 97 is slidably installed in the T-shaped slide groove 98. A rotating groove 910 is provided on the sliding plate 92. A rotating shaft 99 is installed at the bottom of the threaded rod 91, and the rotating shaft 99 is rotatably installed in the rotating groove 910. When the high-temperature resistant sealing ring 8 is embedded in the sealing groove, the first retaining block 93 is embedded in the first positioning groove 94, and then the threaded rod 91 is rotated. Under the limiting action of the T-shaped slider 97 and the T-shaped slide groove 98 The threaded rod 91 drives the sliding plate 92 to slide downward, and the sliding plate 92 slides downward to drive the plug-in rod 96 to be plugged into the first retaining block 93, thereby fixing the high-temperature resistant sealing ring 8 in the sealing groove to prevent the high-temperature resistant sealing ring 8 from falling and affecting the sealing effect due to multiple opening and closing and the influence of strong airflow. At the same time, when the high-temperature resistant sealing ring 8 needs to be replaced after long-term use, the threaded rod 91 is rotated in the opposite direction to slide the plug-in rod 96 out of the first retaining block 93, and the convex plate 95 is pinched to drive the first retaining block 93 and the high-temperature resistant sealing ring 8 to slide out of the sealing groove, making it convenient to take out and replace the high-temperature resistant sealing ring 8.

[0022] Further, the auxiliary retaining structure includes a second retaining block 10, which is mounted on the high temperature resistant sealing ring 8. A second positioning groove 101 is provided on the inner wall of the sealing groove. The second retaining block 10 is inserted into the second positioning groove 101. A movable block 102 is slidably installed on the inner walls of both sides of the second positioning groove 101. A limiting groove 103 is provided on the second retaining block 10. The movable block 102 is movably installed in the limiting groove 103. A sliding groove 104 is provided on the inner wall of the second positioning groove 101. The movable block 102 is slidably installed in the sliding groove 104. A retaining spring 105 is provided in the sliding groove 104. One end of the retaining spring 105 is installed on the movable block 10 2, the other end of the retaining spring 105 is installed on the inner wall of the sliding groove 104, and the high temperature resistant sealing ring 8 is installed in the sealing groove, and the second retaining block 10 is inserted into the second positioning groove 101. When the second retaining block 10 contacts the movable block 102, the movable block 102 will be pushed into the sliding groove 104 and compressed to the retaining spring 105. When the end of the movable block 102 coincides with the limiting groove 103, the movable block 102 will slide into the limiting groove 103 under the elastic force of the retaining spring 105, and the second retaining block 10 is fixed, thereby limiting the two side edges of the high temperature resistant sealing ring 8, thereby improving the stability of the high temperature resistant sealing ring 8 during installation.

[0023] The working principle is as follows: when installing the high temperature resistant sealing ring 8, the high temperature resistant sealing ring 8 is embedded in the sealing groove, and at the same time, the first retaining block 93 is embedded in the first positioning groove 94, and the second retaining block 10 is embedded in the second positioning groove 101. When the second retaining block 10 contacts the movable block 102, the movable block 102 will be pushed into the sliding groove 104 and compressed to the retaining spring 105. When the end of the movable block 102 coincides with the limiting groove 103, the movable block 102 will slide into the limiting groove 103 under the elastic force of the retaining spring 105, and the second retaining block 10 is fixed. In this way, the two side edges of the high temperature resistant sealing ring 8 can be limited, and then the threaded rod 91 is rotated. Under the limiting action of the T-shaped slider 97 and the T-shaped slot 98, the threaded rod 91 drives the sliding plate 92 to slide downward, and the sliding plate 92 slides downward to drive the plug-in rod 96 to be plugged into the first retaining block 93, thereby fixing the high-temperature resistant sealing ring 8 in the sealing groove to prevent the high-temperature resistant sealing ring 8 from falling and affecting the sealing effect due to multiple opening and closing and the influence of strong airflow. At the same time, when the high-temperature resistant sealing ring 8 needs to be replaced after long-term use, the threaded rod 91 is rotated in the opposite direction to slide the plug-in rod 96 out of the first retaining block 93, and the convex plate 95 is pinched to drive the first retaining block 93 and the high-temperature resistant sealing ring 8 to slide out of the sealing groove, making it convenient to take out and replace the high-temperature resistant sealing ring 8.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An improved pneumatic high-temperature valve, comprising a valve body (1), wherein an air inlet interface (2) is arranged on the rear side of the valve body (1), an air outlet interface (3) is arranged on the front side of the valve body (1), a rotary cylinder (4) is arranged on the valve body (1), a valve shaft (5) and a sealing cover (6) are arranged in the valve body (1), the valve shaft (5) is arranged on the right side in front of the air inlet interface (2), the power output end of the rotary cylinder (4) is connected to the valve shaft (5), the valve shaft (5) is connected to the sealing cover (6) through a connecting rod (7), the sealing cover (6) covers the front end surface of the air inlet interface (2), a sealing groove is arranged on the rear side surface of the sealing cover (6), a high-temperature resistant sealing ring (8) is arranged in the sealing groove, and the high-temperature resistant sealing ring (8) is fitted and sealed with the air inlet interface (2); the characteristics are: The sealing cover (6) and the high temperature resistant sealing ring (8) are provided with two main retaining structures and two auxiliary retaining structures, the two main retaining structures are arranged opposite to each other, the two auxiliary retaining structures are arranged opposite to each other, the main retaining structure comprises a support plate (9), a threaded rod (91) is threadedly mounted on the support plate (9), a sliding plate (92) is rotatably mounted at the bottom of the threaded rod (91), both sides of the sliding plate (92) are slidably mounted on the support plate (9), a first positioning groove (94) is provided on the inner wall of the sealing groove, a first retaining block (93) is inserted into the first positioning groove (94), the first retaining block (93) is mounted on the high temperature resistant sealing ring (8), and the first retaining block (93) is mounted on the first retaining block (93). A convex plate (95) is provided, and two plug-in rods (96) are installed at the bottom of the sliding plate (92), and the plug-in rods (96) are plugged into the sealing cover (6) and the first fixing block (93). The auxiliary fixing structure includes a second fixing block (10), and the second fixing block (10) is installed on the high-temperature resistant sealing ring (8). A second positioning groove (101) is provided on the inner wall of the sealing groove, and the second fixing block (10) is plugged into the second positioning groove (101). Movable blocks (102) are slidably installed on the inner walls of both sides of the second positioning groove (101), and a limiting groove (103) is provided on the second fixing block (10), and the movable block (102) is movably installed in the limiting groove (103).

2. The improved pneumatic high temperature valve according to claim 1, characterized in that: A sliding groove (104) is provided on the inner wall of the second positioning groove (101), and the movable block (102) is slidably installed in the sliding groove (104).

3. The improved pneumatic high temperature valve according to claim 2, characterized in that: A retaining spring (105) is arranged in the sliding groove (104), one end of the retaining spring (105) is mounted on the movable block (102), and the other end of the retaining spring (105) is mounted on the inner wall of the sliding groove (104).

4. The improved pneumatic high temperature valve according to claim 1, characterized in that: The support plate (9) is provided with a T-shaped slide groove (98), the slide plate (92) is provided with a T-shaped slide block (97), and the T-shaped slide block (97) is slidably installed in the T-shaped slide groove (98).

5. The improved pneumatic high temperature valve according to claim 1, characterized in that: The sliding plate (92) is provided with a rotation groove (910), and a rotation shaft (99) is installed at the bottom of the threaded rod (91), and the rotation shaft (99) is rotatably installed in the rotation groove (910).

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