Flange plate for gas stop valve and stop valve thereof

Abstract

The utility model relates to the technical field of a flange plate for a gas stop valve and a stop valve thereof, in particular to the flange plate for the gas stop valve and the stop valve thereof. The utility model provides a flange plate for a gas stop valve and the stop valve. The flange plate comprises a connecting pipeline, a mounting pipeline, a connecting flange plate, a mounting flange plate, a valve assembly, a connecting assembly, a sealing assembly, a mounting assembly and a supporting assembly. According to the flange plate for the gas stop valve and the stop valve thereof, the mounting pipeline and the connecting pipeline need to be tightly mounted and connected, firstly, one end of the connecting pipeline is rotationally connected with one end of the mounting pipeline through the connecting assembly, and meanwhile, the connecting and sealing performance between the pipelines can be improved through the sealing assembly; the connecting pipeline and the mounting pipeline can be fastened, mounted and connected through the mounting assembly, in addition, the mounting assembly can be prevented from loosening through the supporting assembly, and then the stability performance of pipeline connection can be improved.

Description

Technical Field

[0001] This utility model relates to the technical field of flanges for gas shut-off valves and shut-off valves, and particularly to a flange for a gas shut-off valve and a shut-off valve thereof. Background Technology

[0002] Gate valves, also known as shut-off valves, are a type of forced-seal valve and are among the most widely used valves. Their popularity stems from the low friction between the sealing surfaces during opening and closing, their durability, small opening height, ease of manufacturing, and convenient maintenance. They are suitable not only for medium and low pressure but also for high pressure. In practical applications, most gas gate valves require flanges to be connected and fixed to pipelines using numerous mounting bolts. Over time, these mounting bolts may loosen or rust, hindering the achievement of stable pipeline connections and sealing performance.

[0003] Therefore, to address the aforementioned issues of inconvenience in improving pipeline connection stability and sealing performance, a flange for a gas shut-off valve and its shut-off valve can be designed. Utility Model Content

[0004] To overcome the problem that most gas shut-off valve flanges require multiple mounting bolts for pipeline connection and fixation during use, and that these bolts may loosen or rust over time, thus hindering the improvement of pipeline connection stability and sealing performance.

[0005] The technical solution of this utility model is as follows: a flange for a gas shut-off valve and the shut-off valve thereof, comprising a connecting pipe, an installation pipe, a connecting flange, an installation flange, a valve assembly, a connecting assembly, a sealing assembly, an installation assembly, and a support assembly; a valve assembly is provided on the side wall of the installation pipe, an installation flange is provided at one end of the installation pipe, a connecting flange is provided on one side of the installation flange, a connecting pipe is provided on one side of the connecting flange, an installation assembly is provided on the side wall of the installation flange, a connecting assembly is provided on the inner wall of the installation flange, a sealing assembly is provided on the side wall of the installation flange, and a support assembly is provided on the side wall of the connecting pipe, the support assembly being in contact with the installation assembly.

[0006] Preferably, when the gas shut-off valve flange and its shut-off valve are in use, the installation pipeline and the connecting pipeline need to be tightly installed and connected. First, one end of the connecting pipeline and one end of the installation pipeline are rotatably connected by the connecting assembly. At the same time, the sealing assembly can improve the sealing performance of the connection between the pipelines. Then, the installation assembly can be used to securely install and connect the connecting pipeline and the installation pipeline. In addition, the support assembly can prevent the installation assembly from loosening, thereby improving the stability of the pipeline connection.

[0007] Preferably, the connecting assembly includes an internal thread and a connecting threaded ring; the inner wall of the mounting flange is provided with an internal thread, and one end of the connecting flange is provided with a connecting threaded ring, which is threadedly connected to the internal thread; when it is necessary to tightly install and connect the installation pipe and the connecting pipe, firstly, align one end of the connecting pipe with one end of the installation pipe, and then rotate the connecting threaded ring and the internal thread to install, thereby initially installing and connecting the connecting pipe and the installation pipe.

[0008] Preferably, the sealing assembly includes a sealing ring and a sealing groove; the sealing groove is provided on the side wall of the mounting flange, and a sealing ring is provided at one end of the connecting flange, with the sealing ring engaging with the sealing groove; at the same time, the sealing ring engages with the sealing groove to improve the sealing performance of the connection between pipes.

[0009] Preferably, the mounting assembly includes mounting threaded holes, mounting bolts, and mounting nuts. Multiple sets of mounting threaded holes are provided on the side wall of the mounting flange. Another mounting threaded hole is located on the side wall of the connecting flange. A mounting bolt is installed inside each mounting threaded hole, and the mounting bolt is threaded into the mounting threaded hole. A mounting nut is attached to one end of each mounting bolt, and the mounting bolt and mounting nut are threaded together. By inserting multiple sets of mounting bolts into the multiple sets of mounting threaded holes, and then installing the mounting nut onto one end of each mounting bolt, the connecting pipe and the mounting pipe can be securely connected.

[0010] Preferably, the support assembly includes a retaining ring and a guide rod; the retaining ring is provided on the side wall of the connecting pipe, and the guide rod is provided on the side wall of the retaining ring, with multiple sets of guide rods provided; the support assembly can be installed and fixed through the retaining ring.

[0011] Preferably, the support assembly also includes a guide hole, a return spring, and a nut catch. A return spring is provided on the outside of the guide rod, with one end fixedly connected to the side wall of the fixing ring. A nut catch is provided on the other end of the return spring, with a guide hole inside the nut catch, and the guide rod is slidably connected to the guide hole. When installing the mounting nut, the nut catch is manually pressed, causing it to slide and retract through the guide hole and guide rod, thus fixing the mounting nut to one end of the mounting bolt. After the mounting nut is fixed, the nut catch is released. Based on the rebound force generated by the elastic deformation of the return spring, the return spring can drive the nut catch to slide and return through the guide rod. The nut catch then supports and abuts against the mounting nut, preventing the mounting nut from loosening and thus improving the stability of the pipe connection.

[0012] Preferably, the valve assembly includes a valve body and a handle; the valve body is provided on the side wall of the installation pipeline, and the handle is provided on the top of the valve body; the valve body can be adjusted and opened / closed by manually adjusting the handle.

[0013] The beneficial effects of this utility model are:

[0014] 1. Compared to traditional gas shut-off valve flanges and valves, which require numerous mounting bolts for pipe connection and fixation during use, these gas shut-off valve flanges and valves offer a more secure connection. First, one end of the connecting pipe is rotatably connected to the other end of the installation pipe using a connecting assembly. Simultaneously, a sealing assembly enhances the sealing performance between the pipes. Then, an installation assembly securely connects the connecting and installation pipes. Furthermore, a support assembly prevents loosening of the installation assembly, thereby improving the stability of the pipe connection.

[0015] 2. When using the gas shut-off valve flange and its shut-off valve, the installation pipe and the connecting pipe need to be tightly connected. First, align one end of the connecting pipe with one end of the installation pipe. Then, rotate the connecting threaded ring and the internal thread to install it, thus initially connecting the connecting pipe and the installation pipe. At the same time, the sealing ring and the sealing groove will seal and engage, thereby improving the sealing performance of the connection between the pipes. Then, by inserting multiple sets of mounting bolts into multiple sets of mounting threaded holes, and then installing the mounting nut and one end of the mounting bolt, the connecting pipe and the installation pipe can be firmly connected.

[0016] 3. When installing the mounting nut, manually press the nut catch block. The nut catch block will slide and retract through the guide hole and guide rod, then fix the mounting nut to one end of the mounting bolt. After the mounting nut is fixed in place, release the nut catch block. According to the elastic deformation of the return spring, the return spring can drive the nut catch block to slide and return through the guide rod. The nut catch block will then support and abut against the mounting nut. The nut catch block can prevent the mounting nut from loosening, thereby improving the stability of the pipeline connection. Attached Figure Description

[0017] Figure 1 The diagram shown is a three-dimensional structural schematic of a flange for a gas shut-off valve and the shut-off valve itself, according to the present invention.

[0018] Figure 2The diagram shown is a three-dimensional structural schematic of a flange for a gas shut-off valve and the shut-off valve itself, according to the present invention.

[0019] Figure 3 The diagram shown is a three-dimensional structural schematic of a flange for a gas shut-off valve and the second part of the shut-off valve according to the present invention.

[0020] Figure 4 The diagram shown is a three-dimensional structural schematic of a flange for a gas shut-off valve and the shut-off valve itself, according to the present invention.

[0021] Figure 5 The diagram shown is a three-dimensional structural schematic of a flange for a gas shut-off valve and the fourth part of the shut-off valve according to the present invention.

[0022] Explanation of reference numerals in the attached drawings: 1. Connecting pipe; 2. Installing pipe; 3. Connecting flange; 4. Installing flange; 101. Internal thread; 102. Connecting threaded ring; 201. Sealing ring; 202. Sealing groove; 301. Installing threaded hole; 302. Installing bolt; 303. Installing nut; 401. Retaining ring; 402. Guide rod; 403. Guide hole; 404. Return spring; 405. Nut retainer; 501. Valve body; 502. Handle. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please see Figure 1 This utility model provides an embodiment: a flange for a gas shut-off valve and the shut-off valve thereof, including a connecting pipe 1, an installation pipe 2, a connecting flange 3, an installation flange 4, a valve assembly, a connecting assembly, a sealing assembly, an installation assembly, and a support assembly; the valve assembly is provided on the side wall of the installation pipe 2, the installation flange 4 is provided at one end of the installation pipe 2, the connecting flange 3 is provided on one side of the installation flange 4, the connecting pipe 1 is provided on one side of the connecting flange 3, the installation assembly is provided on the side wall of the installation flange 4, the connecting assembly is provided on the inner wall of the installation flange 4, the sealing assembly is provided on the side wall of the installation flange 4, and the support assembly is provided on the side wall of the connecting pipe 1, the support assembly and the installation assembly being in contact connection.

[0025] Please see Figure 2The connecting assembly includes an internal thread 101 and a connecting threaded ring 102. The inner wall of the mounting flange 4 has an internal thread 101, and one end of the connecting flange 3 has a connecting threaded ring 102, which is threadedly connected to the internal thread 101. When it is necessary to tightly connect the installation pipe 2 and the connecting pipe 1, firstly, align one end of the connecting pipe 1 with one end of the installation pipe 2, and then rotate the connecting threaded ring 102 with the internal thread 101 to achieve a preliminary connection. The sealing assembly includes a sealing ring 201 and a sealing groove 202. The side wall of the mounting flange 4 has a sealing groove 202, and one end of the connecting flange 3 has a sealing ring 201, which engages with the sealing groove 202. Simultaneously, the sealing ring 201 engages with the sealing groove 202. The sealing mechanism improves the sealing performance of the connection between pipes. The mounting components include mounting threaded holes 301, mounting bolts 302, and mounting nuts 303. Multiple sets of mounting threaded holes 301 are provided on the side wall of the mounting flange 4. Another mounting threaded hole 301 is located on the side wall of the connecting flange 3. A mounting bolt 302 is installed inside the mounting threaded hole 301 and is threadedly connected to it. A mounting nut 303 is attached to one end of each mounting bolt 302 and is threadedly connected to it. By inserting multiple sets of mounting bolts 302 into the multiple sets of mounting threaded holes 301, and then installing the mounting nut 303 onto one end of the mounting bolt 302, the connecting pipe 1 and the mounting pipe 2 can be securely connected.

[0026] Please see Figure 3-5In this embodiment, the support assembly includes a fixing ring 401 and a guide rod 402; a fixing ring 401 is provided on the side wall of the connecting pipe 1, and a guide rod 402 is provided on the side wall of the fixing ring 401, with multiple sets of guide rods 402; the support assembly can be installed and fixed through the fixing ring 401; the support assembly also includes a guide hole 403, a return spring 404, and a nut block 405; a return spring 404 is provided on the outside of the guide rod 402, one end of the return spring 404 is fixedly connected to the side wall of the fixing ring 401, and a nut block 405 is provided on the other end of the return spring 404, with a guide hole 403 opened inside the nut block 405, and the guide rod 402 is slidably connected to the guide hole 403; when the mounting nut 303 is installed, the nut block 405 is manually pressed, and the nut block 405 is then... The guide hole 403 slides and retracts with the guide rod 402. Then, the mounting nut 303 is fixedly installed on one end of the mounting bolt 302. After the mounting nut 303 is fixedly installed, the nut retainer 405 is then released. According to the elastic force generated by the elastic deformation of the return spring 404, the return spring 404 can drive the nut retainer 405 to slide and return through the guide rod 402. The nut retainer 405 then supports and abuts against the mounting nut 303. The nut retainer 405 can prevent the mounting nut 303 from loosening, thereby improving the stability of the pipeline connection. The valve assembly includes a valve body 501 and a handle 502. The valve body 501 is provided on the side wall of the installation pipeline 2, and the handle 502 is provided on the top of the valve body 501. The valve body 501 can be adjusted and opened / closed by manually adjusting the handle 502.

[0027] When the gas shut-off valve flange and its shut-off valve are in use, the installation pipe 2 and the connecting pipe 1 need to be tightly installed and connected.

[0028] First, align one end of the connecting pipe 1 with one end of the installation pipe 2. Then, rotate the connecting threaded ring 102 and the internal thread 101 to install them, thereby initially connecting the connecting pipe 1 and the installation pipe 2.

[0029] Meanwhile, the sealing ring 201 engages with the sealing groove 202 to improve the sealing performance of the connection between pipes.

[0030] Then, by inserting multiple sets of mounting bolts 302 into the interior of multiple sets of mounting threaded holes 301, and then installing mounting nuts 303 onto one end of mounting bolts 302, the connecting pipe 1 and the installation pipe 2 can be fastened and connected.

[0031] In addition, when installing the mounting nut 303, the nut locking block 405 is manually pressed, and the nut locking block 405 slides and retracts through the guide hole 403 and the guide rod 402. Then, the mounting nut 303 is fixedly installed on one end of the mounting bolt 302.

[0032] After the mounting nut 303 is fixedly installed, the nut clip 405 is then loosened. According to the elastic deformation of the return spring 404, the return spring 404 can drive the nut clip 405 to slide and reset through the guide rod 402. The nut clip 405 then supports and abuts against the mounting nut 303. The nut clip 405 can prevent the mounting nut 303 from loosening, thereby improving the stability of the pipeline connection.

[0033] Through the above steps, when the gas shut-off valve flange and its shut-off valve are in use, the installation pipe 2 and the connecting pipe 1 need to be tightly installed and connected. First, one end of the connecting pipe 1 and one end of the installation pipe 2 are rotatably connected by the connecting assembly. At the same time, the sealing assembly can improve the sealing performance of the connection between the pipes. Then, the installation assembly can be used to securely install and connect the connecting pipe 1 and the installation pipe 2. In addition, the support assembly can prevent the installation assembly from becoming loose, thereby improving the stability of the pipe connection.

[0034] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A flange for a gas shut-off valve, comprising a connecting pipe (1); characterized in that: It also includes an installation pipe (2), a connecting flange (3), an installation flange (4), a valve assembly, a connecting assembly, a sealing assembly, an installation assembly, and a support assembly; a valve assembly is provided on the side wall of the installation pipe (2), an installation flange (4) is provided at one end of the installation pipe (2), a connecting flange (3) is provided on one side of the installation flange (4), a connecting pipe (1) is provided on one side of the connecting flange (3), an installation assembly is provided on the side wall of the installation flange (4), a connecting assembly is provided on the inner wall of the installation flange (4), a sealing assembly is provided on the side wall of the installation flange (4), and a support assembly is provided on the side wall of the connecting pipe (1). The support assembly and the mounting assembly are in contact connection; the connecting assembly includes an internal thread (101) and a connecting threaded ring (102); the inner wall of the mounting flange (4) is provided with an internal thread (101), and one end of the connecting flange (3) is provided with a connecting threaded ring (102), which is threadedly connected to the internal thread (101); the sealing assembly includes a sealing ring (201) and a sealing groove (202); the side wall of the mounting flange (4) is provided with a sealing groove (202), and one end of the connecting flange (3) is provided with a sealing ring (201), which is engaged with the sealing groove (202); the mounting assembly includes a mounting threaded hole (3 01) Mounting bolts (302) and mounting nuts (303); A mounting threaded hole (301) is provided on the side wall of the mounting flange (4), and multiple sets of mounting threaded holes (301) are provided. Another mounting threaded hole (301) is provided on the side wall of the connecting flange (3). A mounting bolt (302) is provided inside the mounting threaded hole (301), and the mounting bolt (302) is threadedly connected to the mounting threaded hole (301). A mounting nut (303) is provided at one end of the mounting bolt (302), and the mounting bolt (302) is threadedly connected to the mounting nut (303); The support assembly includes a retaining ring (401) and a guide rod (402); Connection A fixing ring (401) is provided on the side wall of the pipe (1), and a guide rod (402) is provided on the side wall of the fixing ring (401). Multiple sets of guide rods (402) are provided. The support assembly also includes a guide hole (403), a return spring (404), and a nut block (405). A return spring (404) is provided on the outside of the guide rod (402). One end of the return spring (404) is fixedly connected to the side wall of the fixing ring (401). A nut block (405) is provided on the other end of the return spring (404). A guide hole (403) is opened inside the nut block (405). The guide rod (402) is slidably connected to the guide hole (403).

2. A gas shut-off valve, characterized in that... The flange for a gas shut-off valve according to claim 1 further includes: a valve assembly including a valve body (501) and a handle (502); the valve body (501) is provided on the side wall of the mounting pipe (2), and the handle (502) is provided above the valve body (501).

Images