FTIV valve mounting and fixing support

Abstract

The utility model relates to the technical field of fixing supports, and provides an FTIV valve installing and fixing support which is used for fixedly installing an FTIV valve on a fuel tank, the FTIV valve is provided with a connecting part and comprises a main body, the main body is provided with a first installing face and a second installing face, the connecting part is arranged on the first installing face, and the main body is arranged on the fuel tank through the second installing face; and the fastener is arranged on the main body in a penetrating manner, and the fastener is used for locking the connecting part on the first mounting surface. By means of the technical scheme, the problem that in the prior art, when the FTIV valve is under the severe driving condition or suffers from strenuous vibration, connection between the mounting support and the FTIV valve is loosened and slides off is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing brackets, and particularly to a fixing bracket for installing an FTIV valve. Background Art

[0002] The FTIV valve, namely the fuel tank isolation valve, is a safety device used in the automotive and aviation industries, mainly used to cut off the fuel supply in case of an accident or engine shutdown to prevent fire or explosion.

[0003] However, in the existing FTIV valve mounting brackets, under harsh driving conditions or when subjected to severe vibrations, the mounting brackets may become loose, the connection between the mounting brackets and the FTIV valve may also become loose, and even the FTIV valve may slip off. Summary of the Utility Model

[0004] The utility model provides a fixing bracket for installing an FTIV valve, which solves the problem that the connection between the mounting bracket and the FTIV valve may become loose and slip off under harsh driving conditions or when subjected to severe vibrations in the related art.

[0005] The technical solution of the utility model is as follows:

[0006] A fixing bracket for installing an FTIV valve, used to fixedly install the FTIV valve on a fuel tank. The FTIV valve has a connecting portion, and includes:

[0007] A main body having a first mounting surface and a second mounting surface. The connecting portion is disposed on the first mounting surface, and the main body is disposed on the fuel tank through the second mounting surface;

[0008] A fastener is disposed through the main body, and the fastener is used to lock the connecting portion on the first mounting surface.

[0009] Preferably, there are several fasteners, and the main body includes:

[0010] A plate body, the first mounting surface is the top surface of the plate body, and the second mounting surface is the bottom surface of the plate body;

[0011] Mounting portions are provided in several numbers, and the several mounting portions are respectively disposed at the corners of the plate body. Each mounting portion is detachably provided with a fastener.

[0012] Preferably, the mounting portion includes:

[0013] A cylinder body disposed on the plate body;

[0014] A fixing plate disposed in the cylinder body. The fixing plate has a through hole for accommodating the fastener;

[0015] The extrusion blocks, there are several of them, and several of the extrusion blocks are arranged at intervals in a ring centered on the axis of the through hole at the edge of the through hole. One end of the extrusion block away from the edge of the through hole inclines towards the first mounting surface. After the fastener passes through the through hole, several of the extrusion blocks press against the outer wall of the fastener.

[0016] Preferably, the fastener is a bolt and a nut. The bolt passes through the through hole and the connecting part, and the nut is screwed onto the bolt. After the bolt and the nut are connected, they are used to fix the connecting part to the first mounting surface.

[0017] Preferably, it further includes:

[0018] The first pressing plate is arranged on the fixing plate;

[0019] The second pressing plate is arranged on the first pressing plate. There is a clamping groove between the first pressing plate and the second pressing plate, and the clamping groove is used to clamp the connecting part;

[0020] Both the first pressing plate and the second pressing plate have through grooves, and the through grooves communicate with the through hole. The bolt passes through the through hole and the through groove in sequence. One end of the bolt away from the fixing plate extends out of the through groove and is threadedly connected to the nut.

[0021] Preferably, the first pressing plate has a first washer, and the second pressing plate has a second washer. The second washer abuts against the first washer, and the first washer and the second washer separate the first pressing plate and the second pressing plate to form the clamping groove.

[0022] Preferably, it further includes:

[0023] The inner cylinder is arranged between the outer wall of the bolt and the inner wall of the through groove; the bottom of the inner cylinder abuts against the extrusion block, the top of the inner cylinder overlaps on the top surface of the second pressing plate, and the nut abuts against the top of the inner cylinder. After the nut is screwed tight, the inner cylinder is used to press the extrusion block.

[0024] Preferably, the fixing plate has a limiting groove facing the second mounting surface, and the limiting groove is rectangular; it further includes:

[0025] The limiting plate is arranged in the limiting groove, and the limiting groove is used to limit the rotation of the limiting plate.

[0026] Preferably, the fixing plate has several receiving grooves, and several of the receiving grooves are all arranged at intervals at the edge of the limiting groove, and several of the receiving grooves communicate with the limiting groove. It further includes:

[0027] There are several claw jaws, and the several claw jaws are arranged at intervals in the receiving groove. The receiving groove is used to provide a moving space for the claw jaws. The limiting plate is clamped on the claw jaws. The claw jaws have a guiding surface, and the guiding surface is used to guide the limiting plate into the limiting groove.

[0028] Preferably, it further includes:

[0029] A convex strip is arranged at the edge of the plate body, and the convex strip is located on the side close to the first mounting surface.

[0030] The working principle and beneficial effects of the present utility model are as follows:

[0031] In the present utility model, first, the second mounting surface of the main body is fixed to the fuel tank by welding. Then, the connecting part of the FTIV valve is placed at the vertex of the first mounting surface of the main body and fixed by fasteners. The disturbance relative to the fuel tank wall under the action of inertia or acceleration is effectively restricted by the fasteners. Even under harsh driving conditions or when subjected to severe vibrations, the mounting fixing bracket will not slip off the fuel tank wall, enhancing the mechanical strength and stability of the assembly among the mounting fixing bracket, the FTIV valve, and the fuel tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The following will further illustrate the above characteristics, technical features, advantages and their implementation manners of the present utility model in a clear and understandable manner in combination with the drawings of the preferred embodiments.

[0033] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0034] Figure 2 It is a schematic diagram of the structure of the plate body of the present utility model;

[0035] Figure 3 It is a schematic diagram of the internal structure of the first pressing plate and the second pressing plate of the present utility model;

[0036] Figure 4 It is a schematic diagram of the internal structure of the extrusion block of the present utility model;

[0037] Figure 5 It is a schematic diagram of the structure of the claw jaw of the present utility model;

[0038] Figure 6 is Figure 5 The partial enlarged view at A in

[0039] In the figure: 1. FTIV valve; 2. Connecting part; 3. Main body; 301. Plate body; 3011. First mounting surface; 3012. Second mounting surface; 302. Accommodating groove; 303. Mounting part; 3031. Cylinder body; 3032. Fixed plate; 3033. Extrusion block; 3034. Through hole; 304. Limiting groove; 4. Fastener; 401. Bolt; 402. Nut; 5. First pressing plate; 501. First washer; 502. Second washer; 6. Second pressing plate; 7. Clamping groove; 8. Inner cylinder; 9. Limiting plate; 10. Through groove; 11. Claw; 1101. Guiding surface; 12. Rib. Detailed implementation manners

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings, and other implementation manners can also be obtained.

[0041] To make the drawings concise, only the parts related to the utility model are schematically shown in each drawing, and they do not represent the actual structure of the product. In addition, for the sake of conciseness and easy understanding of the drawings, in some drawings, components with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also means "more than one" situation, and "several" includes "two" and "more than two".

[0042] In this article, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0043] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions, and cannot be understood as indicating or implying relative importance.

[0044] Refer to Figures 1 to 6, which is an embodiment of the present utility model, proposes an FTIV valve mounting and fixing bracket for fixedly mounting the FTIV valve 1 to a fuel tank. The FTIV valve 1 has a connecting portion 2, including: a main body 3 having a first mounting surface 3011 and a second mounting surface 3012, the connecting portion 2 is disposed on the first mounting surface 3011, and the main body 3 is disposed on the fuel tank through the second mounting surface 3012; a fastener 4 is disposed through the main body 3, and the fastener 4 is used to lock the connecting portion 2 to the first mounting surface 3011.

[0045] In the above solution, the main body 3 is a triangular plate body 301, and the plate body 301 has a first mounting surface 3011 and a second mounting surface 3012. The first mounting surface 3011 is used to mount the connecting portion 2 of the FTIV valve 1, and the second mounting surface 3012 is used to fixedly mount the main body 3 to the fuel tank by welding. The main body 3 has sufficient strength and durability to adapt to various harsh working conditions. The fastener 4 is used to firmly lock the connecting portion 2 of the FTIV valve 1 to the first mounting surface 3011 of the main body 3. The number of fasteners 4 can be appropriately configured according to the size and shape of the connecting portion 2. For the triangular plate body 301, bolts 401 can be connected to the fastener 4 at the three apex angles of the triangular plate body 301 to improve the connection stability and ensure the close fit between the connecting portion 2 and the first mounting surface 3011. The fastener 4 can ensure a good locking state under various vibration and impact conditions.

[0046] Operation process: First, fix the second mounting surface 3012 of the main body 3 to the fuel tank by welding. The mounting position of the main body 3 should be considered in view of the installation requirements of the FTIV valve 1 and the space layout of the fuel tank. Then place the connecting portion 2 of the FTIV valve 1 at the apex angle of the first mounting surface 3011 of the main body 3 and fix it with the fastener 4. The number and distribution of the fasteners 4 should ensure that each key part of the connecting portion 2 is reliably fixed to avoid loosening during use. The fastener 4 should be tightened with appropriate tools (such as wrenches, screwdrivers, etc.) to ensure a tight connection between the connecting portion 2 and the main body 3. During the tightening process, attention should be paid not to apply excessive force to avoid damaging the connecting portion 2 or the fastener 4. After the installation is completed, a comprehensive inspection should be carried out to ensure that all fasteners 4 have been correctly installed and are firm and reliable. If necessary, vibration tests or tests under simulated extreme conditions can be carried out to verify the stability and safety of the mounting bracket.

[0047] Further, there are several fasteners 4, and the main body 3 includes: a plate body 301, the first mounting surface 3011 is the top surface of the plate body 301, and the second mounting surface 3012 is the bottom surface of the plate body 301; several mounting portions 303 are provided, and the several mounting portions 303 are respectively disposed at the corners of the plate body 301, and a fastener 4 is detachably disposed on each mounting portion 303.

[0048] In the above solution, the plate body 301 has a first mounting surface 3011 and a second mounting surface 3012. The first mounting surface 3011 is the top surface of the plate body 301 and is used to mount the connecting portion 2 of the FTIV valve 1; the second mounting surface 3012 is the bottom surface of the plate body 301 and is used to weld the main body 3 to the fuel tank. The plate body 301 ensures that it can maintain sufficient stability and durability under harsh environments. The mounting portion 303 is provided at the corners of the plate body 301, and a fastener 4 is provided on each mounting portion 303. The fastener 4 is detachably connected to the mounting portion 303, such as a bolt 401 and nut 402 connection, which is convenient for maintenance and replacement. The number of fasteners 4 is configured according to the size and shape of the connecting portion 2 of the FTIV valve 1. The fastener 4 can ensure that it can maintain a good locked state under various vibration and shock conditions, and prevent the FTIV valve 1 from loosening during use.

[0049] Through the above steps, the FTIV valve 1 mounting and fixing bracket provided in this embodiment can effectively solve the problem that the FTIV valve 1 mounting bracket in the prior art loosens or even falls off under harsh driving conditions or when subjected to severe vibrations, ensuring the safety and stability of the FTIV valve 1 during the operation of the vehicle or aircraft.

[0050] Furthermore, the mounting portion 303 includes: a cylinder body 3031 provided on the plate body 301; a fixing plate 3032 provided inside the cylinder body 3031. The fixing plate 3032 has a through hole 3034, and the through hole 3034 is used to accommodate the fastener 4; there are several extrusion blocks 3033. The several extrusion blocks 3033 are arranged at intervals in a ring centered on the axis of the through hole 3034 at the edge of the through hole 3034. One end of the extrusion block 3033 away from the edge of the through hole 3034 is inclined towards the first mounting surface 3011. After the fastener 4 passes through the through hole 3034, the several extrusion blocks 3033 press against the outer wall of the fastener 4.

[0051] In the above solution, the cylinder body 3031 is specifically arranged at the corner of the plate body 301. The cylinder body 3031 penetrates through the plate body 301. The cylinder body 3031 provides an installation space for the fastener 4 and the connecting part 2. The inside of the cylinder body 3031 is a through-hole structure. The fixing plate 3032 is arranged at the middle position inside the cylinder body 3031. During installation, the fastener 4 can penetrate through the through-hole 3034. When the bolt 401 penetrates through the through-hole 3034, the extrusion block 3033 can press tightly against the thread of the bolt 401, which can not only enhance the fastening effect on the bolt 401, but also prevent the bolt 401 from shaking. When the nut 402 and the bolt 401 become loose due to severe impact or vibration, the connecting part 2 can also be restricted by the bolt 401 and will not fly out of the plate body 301. This effectively solves the problem that the installation bracket of the FTIV valve 1 in the prior art becomes loose under harsh driving conditions or when subjected to severe vibration, ensuring the safety and stability of the FTIV valve 1 during the operation of the vehicle or aircraft.

[0052] Further, the fastener 4 is a bolt 401 and a nut 402. The bolt 401 penetrates through the through-hole 3034 and the connecting part 2. The nut 402 is screwed tightly on the bolt 401. After the bolt 401 and the nut 402 are connected, they are used to fix the connecting part 2 on the first mounting surface 3011.

[0053] In the above solution, the bolt 401 penetrates through the through-hole 3034 and the connecting part 2. The length of the bolt 401 is greater than the height of the cylinder body 3031. The bolt 401 can completely extend out of the fixing plate 3032. Then, the connecting part 2 is installed on the bolt 401, and finally it is locked by the nut 402.

[0054] Further, it further includes: a first pressing plate 5, arranged on the fixing plate 3032; a second pressing plate 6, arranged on the first pressing plate 5. There is a clamping groove 7 between the first pressing plate 5 and the second pressing plate 6. The clamping groove 7 is used to clamp the connecting part 2. Both the first pressing plate 5 and the second pressing plate 6 have through grooves 10. The through grooves 10 are communicated with the through-hole 3034. The bolt 401 sequentially penetrates through the through-hole 3034 and the through grooves 10. The end of the bolt 401 away from the fixing plate 3032 extends out of the through groove 10 and is threadedly connected with the nut 402.

[0055] In the above solution, the first pressing plate 5 and the second pressing plate 6 cooperate through the clamping groove 7 to fix the connecting portion 2 of the FTIV valve 1 on the first mounting surface 3011 of the main body 3. The clamping groove 7 ensures that the connecting portion 2 can be stably clamped to prevent loosening during use. The through grooves 10 on the first pressing plate 5 and the second pressing plate 6 allow the bolts 401 to pass through. After the bolts 401 pass through the through grooves 10 and the through holes 3034 of the fixing plate 3032, they cooperate with the nuts 402 to be locked, ensuring a tight connection between the connecting portion 2 and the main body 3. Under the combined action of the first pressing plate 5 and the second pressing plate 6, the connecting portion 2 of the FTIV valve 1 can be firmly fixed on the first mounting surface 3011 of the main body 3, thereby improving the stability and reliability of the entire mounting and fixing bracket of the FTIV valve 1 and maintaining good performance under various harsh conditions.

[0056] Furthermore, the first pressing plate 5 has a first washer 501, and the second pressing plate 6 has a second washer 502. The second washer 502 abuts against the first washer 501, and the first washer 501 and the second washer 502 separate the space between the first pressing plate 5 and the second pressing plate 6 to form the clamping groove 7.

[0057] In the above solution, the first washer 501 and the second washer 502 abut against each other to separate the space between the first pressing plate 5 and the second pressing plate 6, forming a clamping groove 7 for clamping the connecting portion 2 of the FTIV valve 1. To cooperate with the clamping groove 7, the connecting portion 2 is a U-shaped plate. Since the first pressing plate 5 and the second pressing plate 6 are provided at each vertex of the plate body 301, through the cooperation of multiple clamping grooves 7, the connecting portion 2 can be firmly limited and fixed. The clamping groove 7 helps to ensure that the connecting portion 2 can be stably clamped to prevent loosening during use.

[0058] Furthermore, it further includes: an inner cylinder 8, which is arranged between the outer wall of the bolt 401 and the inner wall of the through groove 10; the bottom of the inner cylinder 8 abuts against the extrusion block 3033, the top of the inner cylinder 8 overlaps on the top surface of the second pressing plate 6, and the nut 402 abuts against the top of the inner cylinder 8. After the nut 402 is tightened, the inner cylinder 8 is used to press the extrusion block 3033.

[0059] In the above solution, the longitudinal section of the inner cylinder 8 is T-shaped. When the inner cylinder 8 is placed inside the through groove 10, the top of the inner cylinder 8 overlaps on the top surface of the second pressing plate 6. When the nut 402 is tightened with the bolt 401, the inner cylinder 8 will move downward under the spiral extrusion. During the downward movement of the inner cylinder 8, it will squeeze the first pressing plate 5 and the first pressing plate 5, making the gap of the clamping groove 7 smaller and firmly pressing the connecting portion 2. Moreover, during the downward movement of the inner cylinder 8, it will press the pressing block, enabling the pressing block to press the side wall of the bolt 401, thereby realizing the limitation of the bolt 401. Finally, the connection strength of the entire installation portion 303, the first pressing plate 5, the second pressing plate 6, and the connecting portion 2 is improved.

[0060] Further, the fixing plate 3032 has a limiting groove 304, the limiting groove 304 faces the second mounting surface 3012, and the limiting groove 304 is rectangular; further included is a limiting plate 9 disposed in the limiting groove 304, and the limiting groove 304 is used to limit the rotation of the limiting plate 9.

[0061] In the above solution, the limiting groove 304 is a rectangular groove, and a triangular groove can also be used, the purpose is to limit the rotation of the limiting plate 9. The limiting plate 9 is welded to the bottom surface of the first end of the bolt 401. When the limiting plate 9 and the bolt 401 pass through the limiting groove 304 and the through hole 3034, the bolt 401 itself will no longer rotate. When installing the mounting plate body 301, the limiting plate 9 and the bolt 401 can be placed in place first, and then the main body 3 is directly welded to the fuel tank. Even during later assembly, due to the presence of the limiting plate 9, when the nut 402 is tightened with the bolt 401, the situation where the nut 402 drives the bolt 401 to rotate will not occur, which is convenient for installation.

[0062] Further, the fixing plate 3032 has a plurality of receiving grooves 302, the plurality of receiving grooves 302 are all arranged at intervals at the edge of the limiting groove 304, the plurality of receiving grooves 302 are all communicated with the limiting groove 304, and further included are a plurality of claw members 11. The plurality of claw members 11 are arranged at intervals in the receiving grooves 302. The receiving grooves 302 are used to provide a moving space for the claw members 11. The limiting plate 9 is clamped on the claw members 11, and the claw members 11 have guiding surfaces 1101, and the guiding surfaces 1101 are used to guide the limiting plate 9 into the limiting groove 304.

[0063] In the above solution, the receiving grooves 302 are located on both sides of the limiting groove 304, and the guiding surfaces 1101 of the claw members 11 are inclined surfaces inclined towards the inside of the limiting groove 304. When the limiting plate 9 needs to be installed, only the limiting plate 9 needs to be pushed into the limiting groove 304 along the guiding surface 1101. When the limiting plate 9 contacts the guiding surface 1101, the limiting plate 9 will extrude the claw members 11 outwards. When the limiting plate 9 enters the limiting groove 304, the claw members 11 reset to clamp and limit the limiting plate 9, preventing the bolt 401 from falling off, and improving the connection strength of the bolt 401 and the convenience of installation.

[0064] Further, further included is a rib 12 disposed at the edge of the plate body 301, and the rib 12 is located on the side close to the first mounting surface 3011. The rib 12 facilitates the taking of the plate body 301.

[0065] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. An FTIV valve mounting bracket for fixedly mounting an FTIV valve (1) to a fuel tank, wherein the FTIV valve (1) has a connecting portion (2), characterized in that, Comprising: A main body (3) having a first mounting surface (3011) and a second mounting surface (3012), the connecting portion (2) being disposed on the first mounting surface (3011), and the main body (3) being disposed on the fuel tank through the second mounting surface (3012); Fasteners (4), having a plurality of them, and a plurality of the fasteners (4) are all disposed through the main body (3), and the fasteners (4) are used to lock the connecting portion (2) to the first mounting surface (3011).

2. The FTIV valve mounting and fixing bracket according to claim 1, characterized in that, The main body (3) includes: A plate body (301), the first mounting surface (3011) being the top surface of the plate body (301), and the second mounting surface (3012) being the bottom surface of the plate body (301); Mounting portions (303), having a plurality of them, and a plurality of the mounting portions (303) are respectively disposed at the corners of the plate body (301), and each of the mounting portions (303) is detachably provided with one of the fasteners (4).

3. The FTIV valve mounting and fixing bracket according to claim 2, characterized in that The mounting portion (303) includes: A cylinder body (3031) disposed on the plate body (301); A fixing plate (3032) disposed inside the cylinder body (3031), the fixing plate (3032) having a through hole (3034), and the through hole (3034) is used to accommodate the fastener (4); Extrusion blocks (3033), having a plurality of them, and a plurality of the extrusion blocks (3033) are annularly spaced apart at the edge of the through hole (3034) with the axis of the through hole (3034) as the center, and one end of the extrusion block (3033) away from the edge of the through hole (3034) is inclined towards the first mounting surface (3011). After the fastener (4) passes through the through hole (3034), a plurality of the extrusion blocks (3033) press against the outer wall of the fastener (4).

4. The FTIV valve mounting and fixing bracket according to claim 3, characterized in that, The fastener (4) is a bolt (401) and a nut (402), the bolt (401) passes through the through hole (3034) and the connecting portion (2), and the nut (402) is screwed onto the bolt (401). After the bolt (401) and the nut (402) are connected, they are used to fix the connecting portion (2) to the first mounting surface (3011).

5. The FTIV valve mounting and fixing bracket according to claim 4, characterized in that, Further comprising: A first pressing plate (5) disposed on the fixing plate (3032); A second pressing plate (6) disposed on the first pressing plate (5), and there is a clamping groove (7) between the first pressing plate (5) and the second pressing plate (6), and the clamping groove (7) is used to clamp the connecting portion (2); Both the first pressing plate (5) and the second pressing plate (6) have through grooves (10), the through grooves (10) communicate with the through hole (3034), the bolt (401) sequentially passes through the through hole (3034) and the through groove (10), and one end of the bolt (401) away from the fixing plate (3032) extends out of the through groove (10) and is threadedly connected to the nut (402).

6. The FTIV valve mounting and fixing bracket according to claim 5, characterized in that, The first pressing plate (5) has a first washer (501), the second pressing plate (6) has a second washer (502), the second washer (502) abuts against the first washer (501), and the first washer (501) and the second washer (502) separate the space between the first pressing plate (5) and the second pressing plate (6) to form the clamping groove (7).

7. The FTIV valve mounting and fixing bracket according to claim 5, wherein, Further included are: An inner cylinder (8), which is arranged between the outer wall of the bolt (401) and the inner wall of the through groove (10); the bottom of the inner cylinder (8) abuts against the extrusion block (3033), the top of the inner cylinder (8) overlaps on the top surface of the second pressing plate (6), the nut (402) abuts against the top of the inner cylinder (8), and after the nut (402) is tightened, the inner cylinder (8) is used to press the extrusion block (3033).

8. The FTIV valve mounting and fixing bracket according to claim 3, characterized in that, The fixing plate (3032) has a limiting groove (304), the limiting groove (304) faces the second mounting surface (3012), and the limiting groove (304) is rectangular; further included are: A limiting plate (9), which is arranged in the limiting groove (304), and the limiting groove (304) is used to limit the rotation of the limiting plate (9).

9. The FTIV valve mounting and fixing bracket according to claim 8, characterized in that, The fixing plate (3032) has a plurality of receiving grooves (302), and a plurality of the receiving grooves (302) are arranged at intervals on the edge of the limiting groove (304), and a plurality of the receiving grooves (302) communicate with the limiting groove (304); further included are: Claw (11), there are a plurality of them, and a plurality of the claws (11) are arranged at intervals in the receiving groove (302), the receiving groove (302) is used to provide a moving space for the claws (11), the limiting plate (9) is clamped on the claws (11), and the claw (11) has a guiding surface (1101), and the guiding surface (1101) is used to guide the limiting plate (9) into the limiting groove (304).

10. The FTIV valve mounting and fixing bracket according to claim 2, characterized in that, Further included are: A rib (12), which is arranged at the edge of the plate body (301), and the rib (12) is located on the side close to the first mounting surface (3011).

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