CN219300170U

CN219300170U - Pilot spring film type pressure reducing valve

Info

Publication number: CN219300170U
Application number: CN202320005040.XU
Authority: CN
Inventors: 周炳
Original assignee: Zhejiang Yuanyao Valve Industrial Co ltd
Current assignee: Zhejiang Yuanyao Valve Industrial Co ltd
Priority date: 2023-01-03
Filing date: 2023-01-03
Publication date: 2023-07-04
Anticipated expiration: 2033-01-03

Abstract

The utility model relates to the field of pilot pressure reducing valves, and discloses a pilot spring film pressure reducing valve, which comprises a pressure reducing valve body and a connecting base pipe, wherein the two ends of the pressure reducing valve body are provided with integrated through pipes with the inner diameter the same as the outer diameter of the connecting base pipe, the top outer wall of the connecting base pipe close to a port is fixedly provided with an integrated clamping fixing block, the top outer wall of the port of the through pipe is provided with a strip notch for penetrating through the clamping fixing block, the closed end of the through pipe corresponding to the strip notch is rotationally sleeved with a fixing clamping ring, a connecting mechanism for fixedly connecting the pressure reducing valve body with the connecting base pipe is formed among the clamping fixing block, the strip notch and the fixing clamping ring, and compared with the traditional pilot pressure reducing valve, the pilot pressure reducing valve is more convenient and quick in a flange and bolt mounting mode and is convenient to detach.

Description

Pilot spring film type pressure reducing valve

Technical Field

The utility model relates to the field of pilot pressure reducing valves, in particular to a pilot spring film type pressure reducing valve.

Background

The pilot pressure reducing valve is a direct acting film spring pressure reducing valve, and is designed and manufactured on the basis of absorbing the advantages of similar foreign products. Mainly comprises a diaphragm, a stirrup valve clack, an adjusting spring and other parts. The valve clack is driven by the downstream pressure change sensed by the diaphragm, and the opening of the valve is changed and controlled to realize the functions of pressure reduction and pressure stabilization. The outlet pressure value is set by setting the regulating spring pressure.

The pilot pressure reducing valve properly enlarges the area of the diaphragm and improves the sensitivity. The pressure reduction and stabilization are stable and sensitive. The branch pipeline is suitable for branch pipelines of apartment buildings and residential areas of high-rise buildings, and branch pipes for registering apartments and residences; however, most of the existing pilot pressure reducing valves are connected with branch pipelines through connecting flanges and bolts at two ends, and a plurality of groups of bolts are used for connecting flange ports, so that the steps of installation and disassembly are very complicated, and therefore, the pilot spring film type pressure reducing valve is provided.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a pilot spring film type pressure reducing valve, which solves the problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a guide spring film formula relief pressure valve, includes relief pressure valve body and connection base pipe, relief pressure valve body both ends are provided with integration and internal diameter and the same draft tube of external diameter of connection base pipe, the joint fixed block of integration has been set firmly on the top outer wall that the connection base pipe is close to port department, the rectangular breach that is used for passing the joint fixed block has been seted up to port department top outer wall of draft tube, and corresponds rectangular breach on the draft tube's the closed end department rotation has cup jointed fixed joint ring, and forms the coupling mechanism who is used for relief pressure valve body and connection base pipe to link firmly between joint fixed block, rectangular breach and the fixed joint ring.

Preferably, the inner wall of the draft tube close to the port is internally provided with a rubber sealing ring, and the inner surface of the rubber sealing ring is flush with the inner wall of the draft tube.

Preferably, an open type annular rotation clamping groove is formed in the outer wall of the draft tube at a position corresponding to the position attached to the fixed clamping ring, an annular clamping protrusion integrally clamped in the annular rotation clamping groove is arranged on the inner wall of the fixed clamping ring, and the cross sections of the annular rotation clamping groove and the annular clamping protrusion are T-shaped.

Preferably, the side wall of the fixed clamping ring is penetrated and vertically aligned with the rectangular notch at the tail end of the strip notch, the fixed clamping ring is also provided with a penetrated clamping long groove communicated with the rectangular notch, the clamping long groove and the rectangular notch form an L-shaped through groove, and the side outer wall of the fixed clamping ring is sheathed with a fixed threaded rod in a threaded manner.

Preferably, the length of the strip notch and the rectangular notch is the same as that of the clamping fixing block, the thickness of the clamping long groove is the same as that of the clamping fixing block, the thickness of the fixed clamping ring plus the wall thickness of the draft tube is the same as that of the clamping fixing block, and the length of the clamping long groove is larger than that of the clamping fixing block.

Preferably, the gap distance between the tail ends of the fixing threaded rod and the clamping long groove, which deviate from the rectangular notch, is the same as the length of the clamping fixing block.

Compared with the prior art, the utility model provides the pilot spring film type pressure reducing valve, which has the following beneficial effects:

1. according to the pilot spring film type pressure reducing valve, through directly inserting the draft tubes at two ends of a pressure reducing valve body into a connecting base tube, simultaneously, when inserting, the clamping fixing blocks on the connecting base tube are aligned with the long strip gaps on the draft tubes, after the clamping fixing blocks on the connecting base tube touch the tail end inner walls of the long strip gaps which are vertically aligned with the rectangular gaps, the clamping ring can be fixed in a rotating mode, a fixing threaded rod on the fixing clamping ring is required to be rotated to be separated from a clamping long groove when the fixing clamping ring is rotated, afterwards, the fixing clamping ring is rotated to enable the tail ends of the clamping long groove to be attached to the side outer walls of the clamping fixing blocks, and then the end faces of the fixing threaded rod are extended into the clamping long groove and abutted against the other side outer walls of the clamping fixing blocks, so that the fixed connection of the pressure reducing valve body and the connecting base tube is completed; the connecting mechanism formed by the clamping fixing blocks, the strip gaps and the fixing clamping rings is more convenient and quick compared with a traditional pilot pressure reducing valve which is installed in a flange and bolt mode, and is convenient to detach.

2. The rubber sealing ring is embedded and installed on the inner wall of the draft tube close to the port, and the inner surface of the rubber sealing ring is flush with the inner wall of the draft tube, when the draft tube is spliced with the connecting base tube, the rubber sealing ring is attached to the outer wall of the connecting base tube, so that the connection tightness of the draft tube and the connecting base tube is ensured.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a partially enlarged schematic view at a in fig. 1.

In the figure: 1. a pressure reducing valve body; 2. a draft tube; 3. a connecting base pipe; 4. clamping the fixed block; 5. a strip notch; 6. a fixed clamping ring; 7. an annular rotary clamping groove; 8. the annular clamping bulge; 9. a rectangular notch; 10. fixing a threaded rod; 11. a clamping long groove; 12. and a rubber sealing ring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-2, a pilot spring film type pressure reducing valve comprises a pressure reducing valve body 1 and a connecting base pipe 3, wherein two ends of the pressure reducing valve body 1 are provided with an integrated through flow pipe 2 with the inner diameter identical to the outer diameter of the connecting base pipe 3, the connecting base pipe 3 is guaranteed to be tightly attached when being inserted into the through flow pipe 2, an integrated clamping fixing block 4 is fixedly arranged on the outer wall of the top of the connecting base pipe 3, which is close to a port, a long notch 5 for penetrating through the clamping fixing block 4 is formed on the outer wall of the top of the port of the through flow pipe 2, a fixed clamping ring 6 is sleeved at the closed end of the through flow pipe 2 corresponding to the long notch 5 in a rotating mode, and a connecting mechanism for fixedly connecting the pressure reducing valve body 1 with the connecting base pipe 3 is formed among the clamping fixing block 4, the long notch 5 and the fixed clamping ring 6.

The inner wall of the draft tube 2 close to the port is internally provided with the rubber sealing ring 12, the inner surface of the rubber sealing ring 12 is flush with the inner wall of the draft tube 2, and when the draft tube 2 is spliced with the connecting base tube 3, the rubber sealing ring 12 is attached to the outer wall of the connecting base tube 3, so that the connection tightness of the draft tube 2 and the connecting base tube 3 is ensured.

Open annular rotation clamping groove 7 is formed in the position, corresponding to the position, attached to fixed clamping ring 6, on the outer wall of draft tube 2, annular clamping protrusion 8, integrated with the annular rotation clamping groove 7, is arranged on the inner wall of fixed clamping ring 6, the cross sections of annular rotation clamping groove 7 and annular clamping protrusion 8 are T-shaped, rotation of fixed clamping ring 6 can be limited through the design of annular rotation clamping groove 7 and annular clamping protrusion 8, and the fixed clamping ring 6 cannot deviate when rotating.

The side wall of the fixed clamping ring 6 is penetrated and vertically aligned with the rectangular notch 9 at the tail end of the strip notch 5, the fixed clamping ring 6 is also provided with a penetrated clamping long groove 11 communicated with the rectangular notch 9, the clamping long groove 11 and the rectangular notch 9 form an L-shaped through groove, the outer wall of the side surface of the fixed clamping ring 6 is in threaded sleeve joint with a fixed threaded rod 10, and the fixed threaded rod 10 is used for fixedly clamping the clamping fixed block 4 after the fixed clamping ring 6 rotates.

The opening width of the strip notch 5 and the rectangular notch 9 is the same as the length of the clamping fixing block 4, the opening thickness of the clamping long groove 11 is the same as the width of the clamping fixing block 4, the thickness of the fixed clamping ring 6 plus the wall thickness of the through flow pipe 2 is the same as the thickness of the clamping fixing block 4, and the opening length of the clamping long groove 11 is larger than the length of the clamping fixing block 4.

The clearance distance between the tail end of the fixing threaded rod 10, which is away from the rectangular notch 9, and the clamping long groove 11 is the same as the length of the clamping fixed block 4, and after the clamping ring 6 is rotated to enable the tail end of the clamping long groove 11 to be attached to the outer side wall of the clamping fixed block 4, the rotary fixing threaded rod 10 can be just attached to the outer side wall of the other side of the clamping fixed block 4.

Working principle: when the pressure reducing valve body 1 is installed on the connecting base pipes 3 at two sides, the draft tube 2 at two ends of the pressure reducing valve body 1 can be directly inserted on the connecting base pipes 3, meanwhile, the alignment of the clamping fixing blocks 4 on the connecting base pipes 3 and the strip gaps 5 on the draft tube 2 is ensured during insertion, after the clamping fixing blocks 4 on the connecting base pipes 3 touch the tail end inner walls of the strip gaps 5 which are vertically aligned with the rectangular gaps 9, the clamping ring 6 can be rotationally fixed, the fixing threaded rods 10 on the fixing clamping ring 6 are required to be rotationally separated from the clamping long grooves 11 during rotation of the fixing clamping ring 6, afterwards, the tail ends of the clamping long grooves 11 are attached to the side outer walls of the clamping fixing blocks 4, and then the end faces of the fixing threaded rods 10 extend into the clamping long grooves 11 and abut against the other side outer walls of the clamping fixing blocks 4, so that the fixed connection of the pressure reducing valve body 1 and the connecting base pipes 3 is completed; the connecting mechanism formed by the clamping fixing blocks 4, the strip gaps 5 and the fixing clamping rings 6 of the pilot reducing valve is more convenient and quick compared with a traditional pilot reducing valve in a flange and bolt installation mode, and meanwhile is convenient to detach.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a guide spring film relief pressure valve, includes relief pressure valve body (1) and connection base pipe (3), its characterized in that: the utility model discloses a relief pressure valve, including relief pressure valve body (1), connecting base pipe (3) both ends are provided with integration and draft tube (2) that the internal diameter is the same with the external diameter of connecting base pipe (3), joint fixed block (4) of integration have been set firmly on the top outer wall of connecting base pipe (3) near port department, rectangular breach (5) that are used for passing joint fixed block (4) have been seted up to the port department top outer wall of draft tube (2), and the closed end department that corresponds rectangular breach (5) on draft tube (2) rotates and has cup jointed fixed joint ring (6), and form the coupling mechanism who is used for relief pressure valve body (1) and connecting base pipe (3) to link firmly between joint fixed block (4), rectangular breach (5) and the fixed joint ring (6).

2. A pilot spring diaphragm pressure relief valve as claimed in claim 1, wherein: and the inner wall of the draft tube (2) close to the port is internally provided with a rubber sealing ring (12), and the inner surface of the rubber sealing ring (12) is flush with the inner wall of the draft tube (2).

3. A pilot spring diaphragm pressure relief valve as claimed in claim 1, wherein: open annular rotation clamping groove (7) are formed in the outer wall of the draft tube (2) at positions corresponding to the positions, which are attached to the fixed clamping rings (6), of the draft tube, annular clamping protrusions (8) integrally clamped in the annular rotation clamping groove (7) are arranged on the inner wall of the fixed clamping rings (6), and the cross sections of the annular rotation clamping groove (7) and the annular clamping protrusions (8) are T-shaped.

4. A pilot spring diaphragm pressure relief valve as claimed in claim 1, wherein: the side wall of the fixed clamping ring (6) is penetrated and is vertically aligned with a rectangular notch (9) at the tail end of the strip notch (5), a clamping long groove (11) communicated with the rectangular notch (9) is further formed in the fixed clamping ring (6), the clamping long groove (11) and the rectangular notch (9) form an L-shaped through groove, and a fixed threaded rod (10) is sleeved on the outer wall of the side face of the fixed clamping ring (6) in a threaded manner.

5. The pilot-spring diaphragm pressure relief valve of claim 4, wherein: the length of rectangular notch (5) and rectangular notch (9) is the same as the length of joint fixed block (4), the thickness of seting up of joint elongated slot (11) is the same as the width of joint fixed block (4), the wall thickness of fixed joint ring (6) thickness plus draft tube (2) is the same as the thickness of joint fixed block (4), and the length of seting up of joint elongated slot (11) is greater than the length of joint fixed block (4).

6. The pilot-spring diaphragm pressure relief valve of claim 4, wherein: the clearance distance between the tail ends of the fixing threaded rod (10) and the clamping long groove (11) deviating from the rectangular notch (9) is the same as the length of the clamping fixing block (4).