Air valve with lock clamp pressure head

Abstract

The utility model relates to the technical field of air valves, and discloses an air valve with a lock clamp pressure head, the outer wall of the top of a valve casing is provided with a positioning groove, the inner wall of the positioning groove is rotatably connected with a positioning block, the inner wall of the positioning block is provided with a rod body, the inner wall, close to the positioning groove, of the rod body is provided with a sealing ring, and the inner wall of the bottom of the valve casing is provided with a limiting groove; the limiting groove and the positioning groove are located in the same horizontal line, and the bottom end of the rod body extends downwards to the inner wall of the limiting groove. Through the arrangement of the sealing ring and the positioning groove, fuel oil enters the valve shell through the flange, the fuel oil forwards stamps the valve plate, the valve plate drives the rod body to rotate in the valve shell, the bottom end of the rod body is stably limited in the valve shell through the limiting groove, and the top, connected with the valve shell, of the rod body is positioned through the sealing ring; the positioning block and the positioning groove are matched to vertically fix the rod body to the top of the valve shell, and the limiting plate and the valve shell are matched to vertically fix the positioning block, so that the rod body and the valve shell are connected more stably.

Description

Technical Field

[0001] The utility model relates to the technical field of valve equipment, in particular to a valve with a locking clamp pressure head. Background Art

[0002] The valve is a component of the diesel engine combustion chamber and is also the valve for gas to enter and exit the combustion chamber. It needs to withstand huge impact loads and work at high temperatures. The valve head must withstand temperatures above 1150°C. Such harsh working conditions require that the valve should have sufficient rigidity, strength, high temperature resistance and wear resistance.

[0003] The application number is CN201822011145.8, which discloses a valve, including a head and a rod, the head is provided with a connecting hole for one end of the rod to tightly penetrate, the circumferential outer wall of the rod is protruding with at least one limiting bulge, the inner wall of the connecting hole is provided with a limiting groove for the limiting bulge to be embedded in, and a welding layer for closing the connecting hole is provided between the rod and the head; it has a stable split rod and head structure formed by interference fit, deformation limiting and welding, so that the rod and the head can adopt materials with different performance requirements according to different environmental requirements, thereby improving the performance of the valve.

[0004] A valve disclosed in the above document has the following defects: when the valve is installed in the valve, when the fuel enters the valve and presses the valve plate, the valve plate drives the valve stem to rotate. A corresponding connection structure needs to be provided to enable the valve to work stably in the valve, otherwise the valve stem will loosen in the valve, resulting in the valve being unable to intercept the fuel.

[0005] It can be seen from this that the existing valve does not have the function of being tightly connected to the valve housing, and it is necessary to improve the existing deficiencies and provide a function that can tightly connect the valve to the valve housing to make the operation more stable. Utility Model Content

[0006] The utility model aims to provide a valve with a locking clamping head to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model discloses a valve with a locking clamping head, comprising a valve stem structure and a valve body structure, wherein the valve stem structure is rotatably connected to the inner wall of the valve body structure, the valve body structure comprises a valve shell, a positioning groove is provided on the top outer wall of the valve shell, a positioning block is rotatably connected to the inner wall of the positioning groove, a rod body is provided on the inner wall of the positioning block, a sealing ring is provided on the inner wall of the rod body close to the positioning groove, a limiting groove is provided on the bottom inner wall of the valve shell, the limiting groove and the positioning groove are on the same horizontal line, and the bottom end of the rod body extends downward to the inner wall of the limiting groove. The purpose of such arrangement is that during the use of the valve, the flange is connected to the fuel pipe, and the fuel enters the valve housing through the flange. The fuel presses the valve plate forward, and the valve plate drives the rod body to rotate in the valve housing. The bottom end of the rod body is stably limited in the valve housing by the limiting groove, and the top of the connection between the rod body and the valve housing is positioned by the sealing ring. The positioning block and the positioning groove cooperate to vertically fix the rod body to the top of the valve housing, and the limiting plate and the valve housing cooperate to fix the positioning block up and down, so that the connection between the rod body and the valve housing is more stable. The turning handle is held and rotated, and the turning handle is fixed to the rod body by the sealing plate and the nut, and the rod body is limited in the turning handle by the clamping block. The turning handle drives the rod body to rotate, and the rod body drives the valve plate to rotate, so that the valve plate blocks the flow port of the valve housing, which can intercept the fuel. The structure is convenient for disassembly and replacement of the valve plate and the rod body through bolt connection, thereby improving the flexibility of the structure.

[0009] Furthermore, the top end of the rod body extends upward to the outside of the valve housing, a turning handle is sleeved on the outer wall of the rod body, a clamping block is provided on the outer wall of the top end of the rod body, and the clamping block is clamped on the inner wall of the turning handle. The purpose of this arrangement is that when the valve is used, the turning handle is held and rotated, and the rod body is limited in the turning handle by the clamping block, the turning handle drives the rod body to rotate, and the rod body drives the valve plate to rotate.

[0010] Furthermore, a sealing sheet is sleeved on the top outer wall of the rod body, the sealing sheet is located on the upper surface of the turning handle, and a nut is threadedly connected on the top outer wall of the rod body, the nut is located on the upper surface of the sealing sheet. The purpose of this arrangement is that during the use of the valve, the turning handle is fixed to the rod body through the sealing sheet and the nut.

[0011] Furthermore, a slot is provided on the outer wall of the rod body close to the inside of the valve housing, and a valve plate is provided on the inner wall of the slot, and the valve plate is located on the inner walls of the slot at the upper and lower sides. The purpose of this arrangement is that when the valve is in use, the fuel presses the valve plate forward, and the valve plate drives the rod body to rotate in the valve housing.

[0012] Furthermore, two bolts are threadedly connected on the inner wall of the valve plate, and the two bolts extend to the inner wall of the rod body through the slots. The purpose of this arrangement is that during the use of the valve, the valve plate and the rod body can be easily disassembled and replaced by the bolt connection.

[0013] Furthermore, a flange is provided on one side outer wall of the valve housing, a stop plate is provided at the positioning groove of the valve housing, bolts are threadedly connected on the inner wall of the stop plate, and three of the bolts extend downward to the inner wall of the valve housing. The purpose of such a setting is that during the use of the valve, the flange is connected to the fuel pipe, and the fuel enters the valve housing through the flange. The stop plate and the valve housing cooperate to fix the positioning block up and down, so that the connection between the rod body and the valve housing is more stable.

[0014] The utility model has the following beneficial effects:

[0015] (1) In the utility model, by setting the sealing ring and the positioning groove, the fuel enters the valve housing through the flange, the fuel presses the valve plate forward, the valve plate drives the rod body to rotate in the valve housing, the bottom end of the rod body is stably limited in the valve housing by the limiting groove, the top of the rod body connected to the valve housing is positioned by the sealing ring, the positioning block and the positioning groove cooperate to vertically fix the rod body on the top of the valve housing, the limiting plate and the valve housing cooperate to fix the positioning block up and down, so that the connection between the rod body and the valve housing is more stable.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the disassembled structure of the valve stem structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the valve housing section of the utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the utility model;

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] In the figure: 1. valve stem structure; 100. sealing plate; 101. stem body; 102. clamping block; 103. turning handle; 104. nut; 105. positioning block; 106. sealing ring; 107. clamping groove; 108. valve plate; 109. bolt; 2. valve body structure; 201. valve housing; 202. limiting plate; 203. flange; 204. positioning groove; 205. limiting groove. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1 - Figure 4 As shown, the utility model is a valve with a locking clamping head, including a valve stem structure 1 and a valve body structure 2, the valve stem structure 1 is rotatably connected to the inner wall of the valve body structure 2, the valve body structure 2 includes a valve shell 201, a positioning groove 204 is provided on the top outer wall of the valve shell 201, a positioning block 105 is rotatably connected on the inner wall of the positioning groove 204, a rod body 101 is provided on the inner wall of the positioning block 105, a sealing ring 106 is provided on the inner wall of the rod body 101 close to the positioning groove 204, a limiting groove 205 is provided on the bottom inner wall of the valve shell 201, the limiting groove 205 and the positioning groove 204 are on the same horizontal line, and the bottom end of the rod body 101 extends downward to the inner wall of the limiting groove 205. The purpose of such arrangement is that during the use of the valve, the flange 203 is connected to the fuel pipe, the fuel enters the valve housing 201 through the flange 203, the fuel presses the valve plate 108 forward, the valve plate 108 drives the rod body 101 to rotate in the valve housing 201, the bottom end of the rod body 101 is stably limited in the valve housing 201 by the limiting groove 205, the top of the rod body 101 connected to the valve housing 201 is positioned by the sealing ring 106, the positioning block 105 and the positioning groove 204 cooperate to vertically fix the rod body 101 on the top of the valve housing 201, and the limiting plate 202 and the valve housing 201 cooperate to fix The positioning block 105 is fixed up and down to make the connection between the rod body 101 and the valve housing 201 more stable. The turning handle 103 is held and rotated, and the turning handle 103 is fixed to the rod body 101 through the sealing plate 100 and the nut 104. The rod body 101 is limited in the turning handle 103 through the clamping block 102. The turning handle 103 drives the rod body 101 to rotate, and the rod body 101 drives the valve plate 108 to rotate, so that the valve plate 108 blocks the flow port of the valve housing 201, which can intercept the fuel. The structure is connected by bolts 109, which makes it convenient to disassemble and replace the valve plate 108 and the rod body 101, thereby improving the flexibility of the structure.

[0026] The top end of the rod body 101 extends upward to the outside of the valve housing 201, and a turning handle 103 is sleeved on the outer wall of the rod body 101. A clamping block 102 is provided on the outer wall of the top end of the rod body 101, and the clamping block 102 is clamped on the inner wall of the turning handle 103. The purpose of this arrangement is that when the valve is used, the turning handle 103 is held and rotated, and the rod body 101 is limited in the turning handle 103 by the clamping block 102, and the turning handle 103 drives the rod body 101 to rotate, and the rod body 101 drives the valve plate 108 to rotate.

[0027] A sealing sheet 100 is sleeved on the top outer wall of the rod body 101, and the sealing sheet 100 is located on the upper surface of the turning handle 103. A nut 104 is threadedly connected to the top outer wall of the rod body 101, and the nut 104 is located on the upper surface of the sealing sheet 100. The purpose of this arrangement is that during the use of the valve, the turning handle 103 is fixed to the rod body 101 through the sealing sheet 100 and the nut 104.

[0028] A slot 107 is provided on the outer wall of the rod body 101 near the inside of the valve housing 201, and a valve plate 108 is provided on the inner wall of the slot 107. The valve plate 108 is located on the inner walls of the upper and lower sides of the slot 107. The purpose of this arrangement is that when the valve is used, the fuel presses the valve plate 108 forward, and the valve plate 108 drives the rod body 101 to rotate in the valve housing 201.

[0029] The inner wall of the valve plate 108 is threadedly connected with two bolts 109, and the two bolts 109 extend to the inner wall of the rod body 101 through the slot 107. The purpose of this arrangement is that during the use of the valve, the structure is connected by the bolts 109 to facilitate the disassembly and replacement of the valve plate 108 and the rod body 101.

[0030] A flange 203 is provided on one side outer wall of the valve housing 201, a stop plate 202 is provided at the positioning groove 204 of the valve housing 201, bolts 109 are threadedly connected to the inner wall of the stop plate 202, and three bolts 109 extend downward to the inner wall of the valve housing 201. The purpose of such a setting is that during the use of the valve, the flange 203 is connected to the fuel pipe, and the fuel enters the valve housing 201 through the flange 203, and the stop plate 202 and the valve housing 201 cooperate to fix the positioning block 105 up and down, so that the connection between the rod body 101 and the valve housing 201 is more stable.

[0031] When in use, during the use of the valve, the flange 203 is connected to the fuel pipe, the fuel enters the valve housing 201 through the flange 203, the fuel presses the valve plate 108 forward, the valve plate 108 drives the rod body 101 to rotate in the valve housing 201, the bottom end of the rod body 101 is stably limited in the valve housing 201 by the limiting groove 205, the top of the rod body 101 connected to the valve housing 201 is positioned by the sealing ring 106, the positioning block 105 and the positioning groove 204 cooperate to vertically fix the rod body 101 on the top of the valve housing 201, and the limiting plate 202 and the valve housing 201 cooperate to fix the positioning block 1 05 is fixed up and down to make the connection between the rod body 101 and the valve housing 201 more stable. The handle 103 is held and rotated, and the handle 103 is fixed to the rod body 101 through the sealing plate 100 and the nut 104. The rod body 101 is limited in the handle 103 through the clamping block 102. The handle 103 drives the rod body 101 to rotate, and the rod body 101 drives the valve plate 108 to rotate, so that the valve plate 108 blocks the flow port of the valve housing 201, which can intercept the fuel. The structure is connected by bolts 109, which is convenient for disassembly, assembly and replacement of the valve plate 108 and the rod body 101, thereby improving the flexibility of the structure.

[0032] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A valve with a locking clamping head, comprising a valve stem structure (1) and a valve body structure (2), characterized in that: The valve stem structure (1) is rotatably connected to the inner wall of the valve body structure (2); the valve body structure (2) comprises a valve housing (201); a positioning groove (204) is provided on the top outer wall of the valve housing (201); a positioning block (105) is rotatably connected to the inner wall of the positioning groove (204); a rod body (101) is provided on the inner wall of the positioning block (105); a sealing ring (106) is provided on the inner wall of the rod body (101) near the positioning groove (204); a limiting groove (205) is provided on the bottom inner wall of the valve housing (201); the limiting groove (205) and the positioning groove (204) are on the same horizontal line; the bottom end of the rod body (101) extends downward to the inner wall of the limiting groove (205).

2. A valve with a locking clamping head according to claim 1, characterized in that: The top end of the rod body (101) extends upward to the outside of the valve housing (201), a turning handle (103) is sleeved on the outer wall of the rod body (101), a clamping block (102) is provided on the outer wall of the top end of the rod body (101), and the clamping block (102) is clamped on the inner wall of the turning handle (103).

3. The valve with a locking clamping head according to claim 1, characterized in that: A sealing sheet (100) is sleeved on the top outer wall of the rod body (101), and the sealing sheet (100) is located on the upper surface of the turning handle (103). A nut (104) is threadedly connected to the top outer wall of the rod body (101), and the nut (104) is located on the upper surface of the sealing sheet (100).

4. The air valve with a locking clamping head according to claim 1, characterized in that: A slot (107) is provided on the outer wall of the rod body (101) close to the inside of the valve housing (201), and a valve plate (108) is provided on the inner wall of the slot (107). The valve plate (108) is located on the upper and lower inner walls of the slot (107).

5. The air valve with a locking clamping head according to claim 4, characterized in that: Two bolts (109) are threadedly connected to the inner wall of the valve plate (108), and the two bolts (109) extend to the inner wall of the rod body (101) through the clamping groove (107).

6. The air valve with a locking clamping head according to claim 1, characterized in that: A flange (203) is provided on one outer wall of the valve housing (201), a limiting plate (202) is provided at the positioning groove (204) of the valve housing (201), and bolts (109) are threadedly connected to the inner wall of the limiting plate (202), and three of the bolts (109) extend downward to the inner wall of the valve housing (201).

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