CN111536352B

CN111536352B - Switch type saddle

Info

Publication number: CN111536352B
Application number: CN202010295184.4A
Authority: CN
Inventors: 陈超
Original assignee: Ningbo Platinum Lester Irrigation Equipment Co ltd
Current assignee: Ningbo Platinum Lester Irrigation Equipment Co ltd
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2021-07-02
Anticipated expiration: 2040-04-15
Also published as: CN111536352A

Abstract

The invention discloses a switch type saddle, and relates to the technical field of PE pipe fittings; the cutting device comprises a pipe sleeve sleeved on a PE pipe, a vertical pipe fixedly connected to the upper side of the pipe sleeve, a water outlet which is located on the upper side of the pipe sleeve and corresponds to the vertical pipe in position, a water distribution pipe fixedly connected to one side of the vertical pipe, a sealing cover which is covered on the upper end of the vertical pipe, a lifting block which is in threaded connection with the vertical pipe, and a cutting ring which is located on the lifting block and used for cutting the PE pipe. The pipe sleeve is fixed on the pipe body of the PE pipe, then the lifting block is rotated to drive the cutting ring to descend to cut the PE pipe, after the PE pipe is cut, the lifting block is rotated reversely, and water flows out of the water distribution pipe through the water outlet. When the water outlet needs to be sealed, the lifting block is rotated to the bottom, and the water outlet is sealed.

Description

Switch type saddle

Technical Field

The invention belongs to the technical field of PE pipe fittings, and particularly relates to a switch type saddle.

Background

Sometimes, a water path is led out from a PE water pipe for irrigation, and a saddle is needed at the moment.

The existing saddle can not divide and seal water on the pipe body of the PE pipe.

Disclosure of Invention

The invention aims to overcome the defect that the prior art can not carry out water diversion and water sealing on a pipe body of a PE pipe, and provides a switch type saddle which can carry out water diversion and water sealing on the pipe body of the PE pipe.

In order to achieve the purpose, the invention adopts the following technical scheme:

a switch type saddle comprises a pipe sleeve sleeved on a PE pipe, a vertical pipe fixedly connected to the upper side of the pipe sleeve, a water outlet located on the upper side of the pipe sleeve and corresponding to the vertical pipe, a water distribution pipe fixedly connected to one side of the vertical pipe, a sealing cover covering the upper end of the vertical pipe, a lifting block in threaded connection with the vertical pipe, and a cutting ring located on the lifting block and used for cutting the PE pipe. The pipe sleeve is fixed on a pipe body of the PE pipe, then the lifting block is rotated to drive the cutting ring to descend to cut the PE pipe, after the PE pipe is cut, the lifting block is rotated reversely, water flows out of the water diversion pipe through the water outlet, when water is required to be sealed, the lifting block is rotated to move downwards, the water is blocked by the lifting block, the water cannot flow out of the water diversion pipe, and the water sealing function is achieved.

Preferably, the lower end of the cutting ring is provided with a plurality of cutting grooves which are arranged in an annular array by taking the shaft of the cutting ring as the center, the lower end of the cutting ring forms a cutter between the cutting grooves, and the lower end of the cutter is provided with a slope for reducing the resistance of pipe opening. The cutting effect is good.

Preferably, the cutting ring is fixedly connected with the lifting block, and the upper side of the lifting block is provided with an inner hexagonal wrench hole. The structure is simple.

Preferably, the lifting block comprises a cylindrical main body in threaded connection with the vertical pipe, an annular guide groove positioned at the lower edge of the main body, a sliding groove positioned at the inner side of the upper end of the main body, a pressing block sliding groove positioned at the lower end of the sliding groove, a second guide groove positioned at the inner side of the lower end of the main body, a supporting plate fixedly connected at the lower end of the second guide groove, and a spring positioned at the upper end of the guide groove and used for driving the cutting ring to move upwards, the second guide groove is communicated with the guide groove, a material pulling needle is arranged on the support plate in a penetrating way, the lower end of the material pulling needle is a puncturing end, the piercing end is provided with a barb, the upper end of the material pulling needle is provided with a limiting block, the side surface of the limiting block is provided with a plurality of clamping grooves, the cutting ring comprises a cutter body which is annular and is positioned in the guide groove, a lower pressing plate fixedly connected to the upper end surface of the cutter body, a through hole which is positioned at the edge of the lower pressing plate and is matched with the connecting column, and a second through hole which is positioned on the lower pressing plate; the lifting block forms a connecting column between the second guide grooves, the connecting column penetrates through the through hole, the main body is matched with the special spanner, and the special spanner comprises an insert matched with the main body and used for downwards extruding the lower pressing plate, a boss matched with the second through hole, a groove located on the lower side of the boss and matched with the limiting block, a clamping head located on the inner side wall of the groove and used for being clamped with the clamping groove, and a pressing block fixedly connected to the insert; when the lower pressing plate abuts against the upper end of the second guide groove, the height of the upper end of the cutting groove is lower than that of the support plate, the cutter body is in sealing fit with the support plate, and the cutter body is in sealing fit with the guide groove; when the lower pressing plate and the limiting block are abutted against the upper side of the supporting plate, the height of the barb is lower than that of the lower end of the cutter body, the clamping groove is clamped with the clamping head, and the pressing block is located in the pressing block sliding groove; when the pressing block slides towards one end far away from the sliding groove in the pressing block sliding groove, the plug-in unit moves downwards. Saving material, quick opening and quick water discharge.

Preferably, the edge of the second via hole is provided with a chamfer facilitating the embedding of the boss. The structure is simple.

Preferably, the pipe sleeve comprises a lower pipe clamp and an upper pipe clamp, and two ends of the upper pipe clamp and two ends of the lower pipe clamp are connected through bolts. Simple structure and convenient installation.

Preferably, a sealing ring for preventing water from leaking between the PE pipe and the pipe sleeve is provided on an upper side of an inner edge of the pipe sleeve. Preventing water leakage between the PE pipe and the pipe sleeve.

The invention has the beneficial effects that: the invention provides a switch type saddle which can be used for water distribution and water sealing on a pipe body of a PE pipe, is convenient to install and saves materials.

Drawings

FIG. 1 is a schematic view of example 1;

FIG. 2 is a schematic view of example 1 after the tube is opened;

FIG. 3 is a schematic view of example 2;

FIG. 4 is a schematic view of the lifting block, the pulling pin and the ring cutter in embodiment 2;

FIG. 5 is a schematic view of the elevator block and the cutting ring;

FIG. 6 is a cross-sectional view A-A of FIG. 5;

FIG. 7 is a schematic view of a special purpose wrench;

FIG. 8 is a schematic view of the insert after insertion into the upper end of the body;

FIG. 9 is a schematic view of the plug-in unit pressing the lower pressing plate and the limiting block against the supporting plate;

FIG. 10 is a schematic view of the ring cutter cutting the tubing after rotating the body;

FIG. 11 is a schematic view of the body being rotated in a reverse direction to remove the insert.

In the figure: PE pipe 1, vertical pipe 2, distributive pipe 3, sealing cover 4, lifting block 5, cutting ring 6, lower pipe clamp 7, upper pipe clamp 8, cutting groove 9, cutter 10, slope 11, water outlet 12, sealing ring 13, inner hexagonal wrench hole 14, main body 15, guide groove 16, slide groove 17, second guide groove 18, support plate 19, spring 20, pressing block slide groove 21, material pulling needle 22, barb 23, cutter body 24, connecting column 25, special spanner 26, second via hole 27, clamping groove 28, limiting block 29, plug-in 30, boss 31, groove 32, pressing block 33, pipe 34, upper segment 35, lower segment 36, lower pressing plate 37, via hole 38, clamping head 39 and chamfer 40.

Detailed Description

The invention is explained in further detail below with reference to the figures and the detailed description:

example 1:

referring to fig. 1 to 2: a switch type saddle comprises a pipe sleeve sleeved on a PE pipe 1, a vertical pipe 2 fixedly connected to the upper side of the pipe sleeve, a water outlet 12 positioned on the upper side of the pipe sleeve and corresponding to the vertical pipe 2, a water distribution pipe 3 fixedly connected to one side of the vertical pipe 2, a sealing cover 4 covered on the upper end of the vertical pipe 2, a lifting block 5 in threaded connection with the vertical pipe 2, and a ring cutter 6 positioned on the lifting block 5 and used for cutting the PE pipe 1; the lower end of the cutting ring 6 is provided with a plurality of cutting grooves 9, the cutting grooves 9 are arranged in an annular array by taking the shaft of the cutting ring 6 as the center, the lower end of the cutting ring 6 forms cutters 10 between the cutting grooves 9, and the lower end of each cutter 10 is provided with a slope 11 for reducing the pipe opening resistance; the cutting ring 6 is fixedly connected with the lifting block 5, and the upper side of the lifting block 5 is provided with an inner hexagonal wrench hole 14.

The pipe sleeve comprises a lower pipe clamp 7 and an upper pipe clamp 8, and two ends of the upper pipe clamp 8 are connected with two ends of the lower pipe clamp 7 through bolts. A sealing ring 13 for preventing water from leaking between the PE pipe 1 and the pipe sleeve is arranged along the upper side in the pipe sleeve.

Principle of embodiment:

when the device is used, the pipe sleeve is fixed on the PE pipe 1, the sealing cover 4 is unloaded, the hexagonal wrench is inserted, the lifting block 5 is rotated, the cutting ring 6 descends, the height of the lifting block 5 is lower than that of the water distribution pipe 3, the cutting ring 6 continuously cuts the PE pipe 1, finally the cutting ring 6 cuts off a pipe 34, when the pipe 34 is cut off, the pipe is embedded into the lower end of the cutting ring 6, attention needs to be paid to the fact that at the moment, the height of the lifting block 5 is lower than that of the water distribution pipe 3, under the action of the lifting block 5, the water diversion pipe 3 can not discharge water, after the pipe 34 is cut off, the lifting block 5 is rotated reversely, the lifting block 5 moves upwards, when the lifting block moves to the upper part of the water diversion pipe 3, because the outer diameter of the cutting ring 6 is smaller than the inner diameter of the vertical pipe 2, a gap exists between the cutting ring 6 and the vertical pipe 2, and water passes through the gap and goes out of the water diversion pipe 3. In order to ensure that water does not come out from the upper end of the vertical pipe 2, a sealing cover 4 is finally screwed on the upper end of the vertical pipe 2.

Example 2:

example 1 at the time of production, the customer proposed that in order for the socket wrench hole 14 to have sufficient torsional strength, the depth of the socket wrench hole 14 is relatively deep, which results in a relatively large height of the lifting block 5, and in addition, in order for the lower end of the ring cutter 6 to be relatively close to the PE pipe 1, thereby increasing the pipe opening speed (the time for the lower end of the ring cutter 6 to reach the PE pipe 1 is shorter), the length of the ring cutter 6 is relatively long.

In actual use and production, aiming at embodiment 1, a customer provides that in order to prevent the cut pipe 34 from affecting the water outlet strength of the water diversion pipe 3, when the lifting block 5 rotates reversely, the pipe 34 moves upwards along with the cutting ring 6, and finally, the height of the pipe 34 is higher than that of the water diversion pipe 3, see fig. 2, so as to avoid the influence of the pipe 34 on the water outlet strength. At this time, if the vertical pipe 2 is divided into the upper section 35 and the lower section 36 with the branch pipe 3 as a boundary, the length of the upper section 35 is made long to accommodate the ring cutter 6 and the elevator block 5, which wastes material.

In view of the above disadvantages, embodiment 2 is proposed.

Referring to fig. 3 to 11: a switch type saddle comprises a pipe sleeve sleeved on a PE pipe 1, a vertical pipe 2 fixedly connected to the upper side of the pipe sleeve, a water outlet 12 positioned on the upper side of the pipe sleeve and corresponding to the vertical pipe 2, a water distribution pipe 3 fixedly connected to one side of the vertical pipe 2, a sealing cover 4 covered on the upper end of the vertical pipe 2, a lifting block 5 in threaded connection with the vertical pipe 2, and a ring cutter 6 positioned on the lifting block 5 and used for cutting the PE pipe 1; the lower extreme of cutting ring 6 is equipped with a plurality of cutting grooves 9, cutting grooves 9 use the axle of cutting ring 6 to be the annular array and arrange as the center, 6 lower extremes of cutting ring form cutter 10 between cutting grooves 9, cutter 10 lower extreme is equipped with the slope 11 that is used for reducing the resistance of opening a pipe.

The lifter 5 includes with 2 threaded connection of vertical pipe the main part 15 that is the cylinder, be located the main part 15 down along be annular guide way 16, be located the inboard spout 17 of main part 15 upper end, be located the compact heap spout 21 of spout 17 lower extreme, be located the inboard second guide way 18 of main part 15 lower extreme, rigid coupling in the backup pad 19 of second guide way 18 lower extreme, be located the 16 upper ends of guide way and be used for driving the spring 20 of 6 upward movements of cutting ring, second guide way 18 and guide way 16 intercommunication, wear to be equipped with on the backup pad 19 and pull out material needle 22, it is for pricking the end to pull out material needle 22 lower extreme, it is equipped with barb 23 to prick to serve, it is equipped with stopper 29 to pull out material needle 22 upper end, stopper 29 side is equipped with a plurality of draw-in grooves 28.

The cutting ring 6 comprises a cutter body 24 which is annular and is positioned in the guide groove 16, a lower pressing plate 37 which is fixedly connected with the upper end surface of the cutter body 24, a through hole 38 which is positioned at the edge of the lower pressing plate 37 and is matched with the connecting column 25, and a second through hole 27 which is positioned on the lower pressing plate 37.

The elevator block 5 forms a connection post 25 between the second guide grooves 18, and the connection post 25 passes through the via hole 38.

The main body 15 is adapted to the special spanner 26, and the special spanner 26 includes an insert 30 adapted to the main body 15 and used for pressing the lower pressing plate 37 downward, a boss 31 adapted to the second through hole 27, a groove 32 located on the lower side of the boss 31 and adapted to the stopper 29, a chuck 39 located on the inner side wall of the groove 32 and used for clamping with the clamping groove 28, and a pressing block 33 fixedly connected to the insert 30. The edge of the second via 27 is provided with a chamfer 40 facilitating the embedding of the boss 31.

When the lower pressing plate 37 abuts against the upper end of the second guide groove 18, the height of the upper end of the cutting groove 9 is lower than that of the support plate 19, the cutter body 24 is in sealing fit with the support plate 19, and the cutter body 24 is in sealing fit with the guide groove 16;

when the lower pressing plate 37 and the limiting block 29 are abutted against the upper side of the supporting plate 19, the height of the barb 23 is lower than that of the lower end of the cutter body 24, the clamping groove 28 is clamped with the clamping head 39, and the pressing block 33 is positioned in the pressing block sliding groove 21;

insert 30 moves downward as compression block 33 slides within compression block slide slot 21 toward the end away from slide slot 17.

Principle of embodiment:

when in use;

referring to fig. 8, the plug-in unit 30 is inserted downwards into the upper end of the main body 15, the boss 31 is embedded into the second through hole 27, the stop block 29 corresponds to the groove 32, the clamp head 39 abuts against the stop block 29, the pressing block 33 is aligned with the sliding groove 17, and then the plug-in unit moves downwards;

referring to fig. 9, the spring 20 is elongated, the pressing block 33 moves to the lower end along the sliding slot 17, then the insert 30 is rotated, the pressing block 33 moves along the pressing block sliding slot 21, the pressing block 33 is spirally lowered in the embodiment, the insert continues to move downwards, finally, the clamping head 39 is clamped with the clamping slot 28 under the action of the supporting plate 19, the limiting block 29 is embedded into the groove 32, and the lower pressing plate 37 is pressed on the supporting plate 19 by the insert, so that the cutter body 24 is ensured to be stable enough when the cutter body 24 cuts the PE tube 1.

Referring to fig. 10, when the special wrench 26 rotates the insert, the cutter body 24 moves downward, and since the lower end of the pulling needle 22 is lower than the lower end of the cutter body 24, the pulling needle 22 first passes through the PE pipe 1, and then the lower end of the cutter body 24 cuts off the pipe 34.

Then the special spanner 26 is rotated reversely, the pressing block 33 moves to the lower end of the sliding groove 17 along the pressing block sliding groove 21, then under the support of the sliding groove 17, the lifting block 5 rotates reversely, the lifting block 5 moves upwards, when the lifting block 5 moves to a certain height, the plug-in is pulled upwards, the pressing block 33 is separated from the sliding groove 17, the chuck 39 is still in a clamping state with the clamping groove 28, the plug-in drives the limiting block 29 to move upwards, the pulling needle 22 moves upwards, the pipe 34 is brought to the lower side of the supporting plate 19 under the action of the barb 23 (lubricating oil is arranged between the outer edge of the pipe 34 and the inner edge of the cutter body 24 in order to ensure that the friction force between the outer edge of the pipe 34 and the inner edge of the cutter body 24 is small enough), meanwhile, the spring 20 shortens, the lower pressing plate 37 abuts against the upper end of the second guide groove 18, then the plug-in is pulled upwards by force, the chuck 39 is separated, meanwhile, the height of the pipe 34 is higher than that of the water diversion pipe 3, water can go out of the water diversion pipe 3 through the cutting groove, the influence of the cutting groove on water pressure is small, in addition, the pipe 34 is not located at the lower end of the cutting ring 6 any more, but is abutted against the lower side of the supporting plate, therefore, the lower end of the cutting ring 6 can be lower than the height of the upper edge of the water diversion pipe 3, the upper section 35 of the vertical pipe 2 can be shortened, and materials are greatly saved. In addition, when the plug-in unit is pulled out, the cutter body moves upwards under the action of the spring, and the water outlet time is shortened.

Claims

1. A switch type saddle is characterized by comprising a pipe sleeve sleeved on a PE pipe, a vertical pipe fixedly connected to the upper side of the pipe sleeve, a water outlet positioned on the upper side of the pipe sleeve and corresponding to the vertical pipe, a water diversion pipe fixedly connected to one side of the vertical pipe, a sealing cover covering the upper end of the vertical pipe, a lifting block in threaded connection with the vertical pipe, and a cutting ring positioned on the lifting block and used for cutting the PE pipe;

the lower end of the cutting ring is provided with a plurality of cutting grooves which are arranged in an annular array by taking the shaft of the cutting ring as the center, the lower end of the cutting ring forms a cutter between the cutting grooves, and the lower end of the cutter is provided with a slope for reducing the resistance of pipe opening;

the cutting ring is fixedly connected with the lifting block, and an inner hexagonal wrench hole is formed in the upper side of the lifting block;

the lifting block comprises a cylindrical main body in threaded connection with a vertical pipe, an annular guide groove positioned on the lower edge of the main body, a chute positioned on the inner side of the upper end of the main body, a pressing block chute positioned at the lower end of the chute, a second guide groove positioned on the inner side of the lower end of the main body, a support plate fixedly connected to the lower end of the second guide groove, and a spring positioned on the upper end of the guide groove and used for driving the cutting ring to move upwards, wherein the second guide groove is communicated with the guide groove, a material pulling needle penetrates through the support plate, the lower end of the material pulling needle is a puncturing end, a barb is arranged on the puncturing end, a limit block is arranged at the upper end of the material pulling needle,

the cutting ring comprises a cutter body which is annular and is positioned in the guide groove, a lower pressing plate fixedly connected to the upper end surface of the cutter body, a through hole which is positioned at the edge of the lower pressing plate and is matched with the connecting column, and a second through hole which is positioned on the lower pressing plate;

the lifting block forms a connecting column between the second guide grooves, the connecting column passes through the through hole,

the special wrench comprises an insert which is matched with the main body and used for downwards extruding the lower pressing plate, a boss which is matched with the second through hole, a groove which is positioned on the lower side of the boss and matched with the limiting block, a clamping head which is positioned on the inner side wall of the groove and used for clamping with the clamping groove, and a pressing block which is fixedly connected on the insert;

when the lower pressing plate abuts against the upper end of the second guide groove, the height of the upper end of the cutting groove is lower than that of the support plate, the cutter body is in sealing fit with the support plate, and the cutter body is in sealing fit with the guide groove;

when the lower pressing plate and the limiting block are abutted against the upper side of the supporting plate, the height of the barb is lower than that of the lower end of the cutter body, the clamping groove is clamped with the clamping head, and the pressing block is located in the pressing block sliding groove;

when the pressing block slides towards one end far away from the sliding groove in the pressing block sliding groove, the plug-in unit moves downwards.

2. Saddle according to claim 1, in which the second through hole edge is provided with a chamfer facilitating the embedding of the boss.

3. Saddle according to claim 1, in which the said sleeve comprises a lower clamp, an upper clamp, the two ends of which are connected by means of bolts.

4. Saddle according to any of claims 1 to 3, in which a sealing ring is provided inside the sleeve along the upper side for preventing water from leaking between the PE tube and the sleeve.