CN2292942Y

CN2292942Y - Expansion valve attached to outside of pipe

Info

Publication number: CN2292942Y
Application number: CN 97210432
Authority: CN
Inventors: 李玉山
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-01-29
Filing date: 1997-01-29
Publication date: 1998-09-30
Anticipated expiration: 2007-01-29

Abstract

The utility model provides a novel type valve. The existing valves need the connection of connecting pieces and pipelines. The utility model is characterized in that the pipeline is drilled with a hole, and a central hole the front end of which is a semicircular connector 5 is positioned on the pipeline and is fixed on the pipeline via circular connecting pieces 4. The front end of an outer cover 13 is connected with the back end of the connector 5. A lifting nut 9 is arranged inside the outer cover 13, and one end thereof passes through an upper cover 10 and is connected with a handle 11. The back part of a lifting screw 8 is connected with the lifting nut, and the front part is provided with a blind hole 7. One end of each of a supporting bar 3 and a spring piece 2 is inserted into the blind hole 7, and the other end of each of the supporting bar 3 and the spring piece 2 is arranged inside an expanded sleeve 1 and is sheathed on the lifting screw 8.

Description

Manage outer adhesion type expansion valve

The utility model relates to a kind of valve, particularly a kind of novel valve that is attached on the tube wall

Now all valves that use all are connected on the pipeline with the piping link, and in the main deficiency of kind of valve be: difficulty is installed during construction, and the engineering time is long, and construction quality is difficult to assurance.

The purpose of this utility model provides a kind of easy for installation, and speed of application is fast, the novel valve that quality is high.

The purpose of this utility model is achieved in that changes a hole on pipeline 14, connecting body 5 front ends are with the semi-circle of pipe 14 with the footpath, the internal orifice dimension of this end is identical with the aperture on the pipeline 14, its opposite side, the not ring step of isometrical formation of one endoporus is arranged, circular connector 4 is enclosed within on the pipeline 14, and two ends link to each other with connecting body 5 by bolt; The front end of overcoat 13 is isometrical with the rear end endoporus of connecting body 5, and its rear end links to each other with loam cake 10 by screw thread, and lifting nut 9 is contained in the overcoat 13, and the one end passes loam cake 10 and links to each other with handle 11; The front end of overcoat 13 injects the rear end of connecting body 5, and they are connected together by bolt 6, lifting screw 8 passes the hole of overcoat 13 front ends, positioning key on the hole wall is down in vertical keyway of lifting screw 8, the lifting bar 8 that penetrates in overcoat 13 front aperture links to each other with lifting nut 6 with crossing screw thread, the front end of lifting screw 8 has a blind hole 7, nose end has a ring-shaped step, the retaining ring 15 that has internal thread is contained in the hole, and with hole wall is close-fitting, one end of strut 3 has one section outside thread greatly, this section slightly is coarser than back one section bar footpath, the internal thread of this section screw thread in blind hole 7 matches, and can slide up and down in blind hole 7 with crossing retaining ring 15 backs, and an end of spring ring 2 inserts blind hole 7, its termination withstands on the step, expansion sleeve 1 is adorned the other end of strut 3 and spring sheet 3 within it, and is enclosed within the front end of lifting screw 8, inserts in the pipeline 14.During construction, as long as it is on pipeline 14, hole week put a sealing gasket that the hole of link 5 front ends is corresponding with the hole on the pipeline 14, connect with circular connector 4 and to get final product.

The utility model has the advantages that: easy for installation, speed is fast, quality is high.

Fig. 1 is structural representation of the present utility model (summary is with scheming)

Embodiment:

Bore a hole on pipeline 14, connecting body 5 front ends are that the internal orifice dimension of this end is identical with the aperture on the pipeline 14 with the semi-circle of pipe 14 with the footpath, its opposite side, the not ring step of isometrical formation of one endoporus is arranged, and circular connector 4 is enclosed within on the pipeline 14, and two ends link to each other with connecting body 5 by bolt; The front end of overcoat 13 is isometrical with the rear end endoporus of connecting body 5, and its rear end links to each other with loam cake 10 by screw thread, and lifting nut 9 is contained in the overcoat 13, and the one end passes loam cake 10 and links to each other with handle 11; The front end of overcoat 13 injects the rear end of connecting body 5, and they are connected together by bolt 6, lifting screw 8 passes the hole of overcoat 13 front ends, positioning key on the hole wall arrives for 12 times in vertical keyway of lifting screw 8, the lifting bar 8 that penetrates in overcoat 13 front aperture links to each other with lifting nut 6 with crossing screw thread, the front end of lifting screw 8 has a blind hole 7, nose end has a ring-shaped step, the retaining ring 15 that has internal thread is contained in the hole, and with hole wall is close-fitting, one end of strut 3 has one section outside thread, this section slightly is coarser than back one section bar footpath, and the internal thread of this section screw thread in blind hole 7 matches, and can slide up and down in blind hole 7 with crossing retaining ring 15 backs, one end of strut 3 inserts in the blind hole 7, one end of spring ring 2 inserts in the blind hole 7, and its termination withstands on the step, and expansion sleeve 1 is adorned the other end of strut 3 and spring sheet 3 within it, and be enclosed within the front end of lifting screw 8, insert in the pipeline 14.During construction, as long as it is on pipeline 14, hole week put a sealing gasket that the hole of link 5 front ends is corresponding with the hole on the pipeline 14, connect with circular connector 4 and to get final product; During use, as Open valve, rotatable handle 11, lifting nut 9 drives lifting screw 8 and moves upward, and expansion sleeve 1 is extracted out in pipeline 14; During throttle down, opposite direction handle with sleeve 11, lifting nut 9 drives lifting screw 8 and moves downward, and lifting screw 8 pressuring spring sheets 2 outwards arch, and like this, along with the increase of pressure, spring sheet 2 is propped up expansion sleeve 1 pipeline 14 is closed.

Claims

1. the outer adhesion type expansion valve of a pipe, it comprises the attachment portion with pipe, the lift adjustment part, the expander part, it is characterized in that: the front end of connecting body 5 is that its opposite side has the not ring step of isometrical formation of an endoporus with the semicircle of pipeline 14 with the footpath, circular connector 4 is enclosed within on the pipe, and two ends link to each other with connecting body 5 by bolt; The front end of overcoat 13 is isometrical with the rear end endoporus of connecting body 5, and inserts within it, connects together with crossing screw rod 6, and its rear end links to each other with loam cake 10 with crossing screw thread, and lifting nut 9 is contained in the overcoat 13, and the one end passes loam cake 10 and links to each other with handle 11; Lifting screw 8 passes the hole of overcoat 13 front ends, positioning key on the hole wall arrives for 12 times in vertical keyway of lifting screw, the lifting bar 8 that penetrates in overcoat 13 front aperture links to each other with lifting nut 9 with crossing screw thread, the front end of lifting screw 8 has a blind hole 7, nose end has a ring-shaped step, the retaining ring 15 that has internal thread is contained in the blind hole 7, and with hole wall is close-fitting, one end of strut 3 has one section outside thread, and this section is coarser than the bar footpath of back segment, strut 3 threaded end enter in the hole by the screw thread of the internal fixation ring 15 of blind hole 7, the insertion blind hole 7 of one end symmetry of spring ring 2, its termination withstands on the ring-shaped step, and expansion sleeve 1 is adorned the other end of strut 3 and spring sheet 2 within it, and be enclosed within the front end of lifting screw 8, insert in the pipeline 14.