Pressure reducing valve

Abstract

The utility model discloses a pressure reducing valve which comprises a pressure reducing valve assembly, and the pressure reducing valve assembly comprises a connecting pipe. The extension assembly comprises a fixed circular ring, an extension column, a supporting circular ring, a movable column, a clamping plate and a fixing nut, the fixed circular ring is fixedly connected to the outer end of the connecting pipe, the extension column is fixedly connected to the periphery of the outer side of the fixed circular ring, the supporting circular ring is fixedly connected to the outer end of the extension column, and the movable column penetrates through the interior of the supporting circular ring and extends to the two sides; the clamping plate is fixedly connected to one end of the movable column, and the fixing nut is in threaded connection to the outer surface of the movable column. The supporting circular ring is sleeved outside the external pipeline, the movable column drives the clamping plate to move to the outer side of the external pipeline by moving the movable column, and the movable column is fixed in the supporting circular ring through the fixing nut, so that when the connecting pipe moves, the external pipeline in the supporting circular ring moves along with the connecting pipe; and an external pipeline connector cannot extrude the interior of the connecting pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure reducing valve technical field, in particular to a pressure reducing valve. BACKGROUND

[0002] The pressure reducing valve is a kind of device for reducing and stabilizing fluid pressure. According to the different working principles and structural forms, it can be divided into two categories of pilot type and direct acting type. The pilot type pressure reducing valve is suitable for large flow, high precision occasions, and the direct acting type pressure reducing valve is suitable for small flow or occasions with low precision requirements.

[0003] The existing pressure reducing valve when in use, by connecting the external pipeline in the connecting pipe inside, when the pressure reducing valve appears movement, will drive the external pipeline to appear movement, external pipeline movement will and the extrusion of connecting pipe, to cause the connection to shake the situation, therefore, need to provide a kind of device to avoid the extrusion of external pipeline interface and connecting pipe, to avoid the connection to shake. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of pressure reducing valve to solve the problem that the existing pressure reducing valve in the above background technique appears movement when in use, will drive the external pipeline to appear movement, external pipeline movement will and the extrusion of connecting pipe, to cause the connection to shake the situation.

[0005] To solve the above technical problem, the utility model is realized by the following technical scheme:

[0006] The utility model is a kind of pressure reducing valve, comprising:

[0007] Pressure reducing valve assembly, the pressure reducing valve assembly includes connecting pipe;

[0008] Extension assembly, the extension assembly includes fixed ring, extension column, support ring, movable column, clamping plate and fixed nut, the fixed ring is fixedly connected to the external end position of connecting pipe, extension column is fixedly connected to the external four quarters position of fixed ring, support ring is fixedly connected to the external end position of extension column, movable column extends to both sides by penetrating support ring inside, clamping plate is fixedly connected to the one end position of movable column, fixed nut is threadedly connected to the external surface position of movable column.

[0009] Further, the pressure reducing valve assembly further includes valve body and pressure gauge, the connecting pipe is fixedly connected to the both sides position of valve body, and the pressure gauge is fixedly connected to the external side position of connecting pipe.

[0010] Further, the movable column external surface has the thread structure relative to the fixed nut opening, and clamping plate is located at the internal four quarters position of support ring.

[0011] Further, the extension column is located at the position outside the connecting pipe, and the clamping plate is in an arc structure.

[0012] Further, the sealing assembly is further included, the sealing assembly includes a through hole, a fixed disc, a supporting rod, a sealing plug and a bolt, the through hole is arranged at the position outside the supporting ring, the fixed disc is arranged at the position outside the supporting ring, the supporting rod is fixedly connected to the position outside the fixed disc, the sealing plug is fixedly connected to the position of one end of the supporting rod, and the bolt extends outwardly through the fixed disc.

[0013] Further, the through hole is arranged relative to the bolt, and the sealing plug is sleeved at the position inside the connecting pipe.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] One, the utility model discloses a supporting ring is sleeved outside the external pipeline, and the movable column is moved to the outside of the external pipeline by the movable column, and the movable column is fixed in the supporting ring by the fixed nut, so that the external pipeline interface does not extrude the inside of the connecting pipe when the connecting pipe moves.

[0016] Two, based on beneficial effect one, when the pressure reducing valve is not used, the sealing plug is sleeved in the connecting pipe, so that the external dust and dirt cannot enter the inside of the connecting pipe, the fixed disc is attached to the outside of the supporting ring, the bolt is fixed in the through hole, and the fixed disc is fixed to the outside of the supporting ring, so that the fixed disc is limited to the sealing plug by the supporting rod, and the sealing plug is prevented from falling from the inside of the connecting pipe. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

[0018] Figure 1 It is the front view of the utility model;

[0019] Figure 2 It is the pressure reducing valve assembly structure diagram of the utility model;

[0020] Figure 3 It is the extension assembly structure diagram of the utility model;

[0021] Figure 4 It is the sealing assembly structure diagram of the utility model.

[0022] The components represented by the reference numbers in the drawings are listed as follows:

[0023] 11, valve body; 12, connecting pipe; 13, pressure gauge; 21, fixed ring; 22, extension column; 23, supporting ring; 24, movable column; 25, clamping plate; 26, fixed nut; 31, through hole; 32, fixed disc; 33, supporting rod; 34, sealing plug; 35, bolt. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent, comprehensible and easy to understand, the specific embodiments of the utility model will be described in detail below with reference to the drawings.

[0025] In the following description, a lot of specific details are set forth in order to give a thorough understanding of the utility model, but the utility model can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the utility model, therefore the utility model is not limited by the specific embodiments disclosed below.

[0026] Secondly, the utility model is described in detail in combination with the schematic diagram, when the embodiments of the utility model are described in detail, for the convenience of description, the sectional view of the device structure will be partially enlarged without the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the utility model herein. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual production.

[0027] In order to make the purpose, technical scheme and advantages of the utility model more clear, the embodiments of the utility model will be described in further detail below in combination with the drawings.

[0028] Please refer to Figures 1-3 The embodiment is a pressure reducing valve, which comprises:

[0029] The pressure reducing valve assembly comprises a connecting pipe 12;

[0030] The pressure reducing valve assembly further comprises a valve body 11 and a pressure gauge 13, the connecting pipe 12 is fixedly connected to the positions on both sides of the valve body 11, and the pressure gauge 13 is fixedly connected to the position on the outer side of the connecting pipe 12.

[0031] The valve body 11 is used for pressure reduction, the connecting pipe 12 is used for connecting the valve body 11 and the pipeline outside, and the pressure gauge 13 is used for displaying the pressure inside the valve body 11.

[0032] The extension assembly comprises a fixed ring 21, an extension column 22, a supporting ring 23, a movable column 24, a clamping plate 25 and a fixed nut 26, the fixed ring 21 is fixedly connected to the outer end position of the connecting pipe 12, the extension column 22 is fixedly connected to the outer side four positions of the fixed ring 21, the supporting ring 23 is fixedly connected to the outer end position of the extension column 22, the movable column 24 extends to both sides through the inside of the supporting ring 23, the clamping plate 25 is fixedly connected to the one end position of the movable column 24, and the fixed nut 26 is threadedly connected to the outer surface position of the movable column 24.

[0033] The fixed ring 21 is used for supporting the extension column 22, the extension column 22 is used for supporting the supporting ring 23, the supporting ring 23 is used for supporting the movable column 24, the movable column 24 is used for supporting the fixed nut 26, and the fixed nut 26 is used for limiting the movable column 24.

[0034] The outer surface of the movable column 24 is provided with a threaded structure relative to the fixed nut 26, and the clamping plate 25 is located at the inside four positions of the supporting ring 23.

[0035] The fixed nut 26 can move on the outer surface of the movable column 24 along the threaded structure.

[0036] The extension column 22 is located at the outer side four positions of the connecting pipe 12, and the clamping plate 25 is of an arc structure.

[0037] The movable column 24 can move in the inside of the supporting ring 23, and the movement of the movable column 24 can drive the clamping plate 25 to move.

[0038] Working principle: when the valve body 11 is connected with the external pipeline through the connecting pipe 12, the supporting ring 23 is sleeved outside the external pipeline, the movable column 24 is moved inward, the movable column 24 moves inward to drive the clamping plate 25 to move inward, when the clamping plate 25 moves to the outside of the external pipeline and contacts, the fixed nut 26 is moved inward through the threaded structure, so that the fixed nut 26 fixes the movable column 24 in the inside of the supporting ring 23, at this time, when the valve body 11 and the connecting pipe 12 move, the connecting pipe 12 drives the supporting ring 23 to move through the fixed ring 21 and the extension column 22, so that the external pipeline in the inside of the supporting ring 23 and the extension column 22 moves at the same frequency as the connecting pipe 12, thereby avoiding the extrusion of the external pipeline interface and the inside of the connecting pipe 12.

[0039] Please refer to Figure 4 The embodiment is based on the above-mentioned embodiment and further comprises:

[0040] The sealing assembly comprises a through hole 31, a fixed disc 32, a supporting rod 33, a sealing plug 34 and a bolt 35, the through hole 31 is arranged at the outer side of the supporting ring 23, the fixed disc 32 is arranged at the outer side of the supporting ring 23, the supporting rod 33 is fixedly connected to the outer side of the fixed disc 32, the sealing plug 34 is fixedly connected to one end of the supporting rod 33, and the bolt 35 extends outwardly through the fixed disc 32;

[0041] The through hole 31 is used for placing the bolt 35, the fixed disc 32 is used for supporting the supporting rod 33, the supporting rod 33 is used for supporting the sealing plug 34, the sealing plug 34 is used for sealing the connecting pipe 12, and the bolt 35 is used for limiting the fixed disc 32.

[0042] The through hole 31 is arranged relative to the bolt 35, and the sealing plug 34 is sleeved in the connecting pipe 12;

[0043] When the bolt 35 penetrates through the fixed disc 32 and enters the through hole 31, the fixed disc 32 is fixed at the outer side of the supporting ring 23.

[0044] Working principle: when the pressure reducing valve assembly is not used, in order to prevent dust and dirt from entering the connecting pipe 12, the sealing plug 34 and the supporting rod 33 are placed in the supporting ring 23, the fixed disc 32 is moved inward, the fixed disc 32 drives the sealing plug 34 and the supporting rod 33 to move inward, when the fixed disc 32 is combined with the outer side of the supporting ring 23, the fixed disc 32 drives the sealing plug 34 to move to the inside of the connecting pipe 12 through the supporting rod 33, and then the fixed disc 32 is fixed on the outer side of the supporting ring 23 through the bolt 35, so that the sealing plug 34 is fixed in the connecting pipe 12.

[0045] In the description of the utility model, need explanation further, unless have explicit provision and limitation, term " set ", " install ", " link ", " connect " should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can pass through intermediate medium indirectly connect, can be two element inside intercommunication. For ordinary skilled person in the art, the above-mentioned terms can be understood according to the specific meaning of the utility model.

[0046] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A pressure reducing valve characterized by comprising: The utility model relates to a pressure reducing valve assembly, including: The pressure reducing valve assembly includes connecting pipe (12); The extension assembly includes fixed ring (21), extension column (22), support ring (23), movable column (24), clamping plate (25) and fixed nut (26), the fixed ring (21) is fixedly connected to the outer end position of connecting pipe (12), the extension column (22) is fixedly connected to the outer side four -around position of fixed ring (21), the support ring (23) is fixedly connected to the outer end position of extension column (22), movable column (24) extends to both sides through the inside of support ring (23), clamping plate (25) is fixedly connected to the one end position of movable column (24), and fixed nut (26) is threadedly connected to the outer surface position of movable column (24).

2. A pressure reducing valve according to claim 1, wherein The pressure reducing valve assembly further includes valve body (11) and pressure gauge (13), and the connecting pipe (12) is fixedly connected to the both sides position of valve body (11), and the pressure gauge (13) is fixedly connected to the outer side position of connecting pipe (12).

3. The pressure reducing valve according to claim 1, wherein The outer surface of movable column (24) has the thread structure relative to fixed nut (26), and clamping plate (25) is located at the inside four -around position of support ring (23).

4. The pressure reducing valve according to claim 1, wherein The extension column (22) is located at the outer side four -around position of connecting pipe (12), and clamping plate (25) is arc structure.

5. The pressure reducing valve according to claim 1, wherein It further includes sealing assembly, and the sealing assembly includes through -hole (31), fixed disc (32), support rod (33), sealing plug (34) and bolt (35), the through -hole (31) is set up at the outer side four -around position of support ring (23), fixed disc (32) is placed at the outer side position of support ring (23), support rod (33) is fixedly connected to the outer side position of fixed disc (32), sealing plug (34) is fixedly connected to the one end position of support rod (33), and bolt (35) extends outwardly through the four -around of fixed disc (32).

6. A pressure reducing valve according to claim 5, wherein The through -hole (31) is set up relative to bolt (35), and sealing plug (34) is sleeved in the inside position of connecting pipe (12).

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