CN104989903B - Irrigate thin-walled Zhi Guanyong socket joints bypass - Google Patents

Abstract

The invention discloses a socket bypass for irrigation thin-walled branch pipes, which is characterized in that it comprises a pipe body and a clamping nut, and the front end of the clamping nut is provided with a plurality of trapezoidal locking teeth, and the trapezoidal locking teeth are relatively dense, forming a ring structure , they are thinner, easy to deform, and have good recovery performance, and are produced in one piece with the clamping nut. The invention has the characteristics of fast installation, firm connection, low price and the like.

Description

Socket bypass for irrigation thin-wall branch pipe

technical field

The invention relates to a socket pipe fitting for connecting branch pipes and drip irrigation belts used in the field of farmland irrigation, in particular to a socket bypass for irrigation thin-walled branch pipes.

Background technique

In the micro-irrigation system, the connection between the branch pipe and the capillary pipe or the drip irrigation belt is called a bypass.

Figure 1 and Figure 2 are schematic diagrams of bypass structures for thick-walled branch pipes. Among them, Figure 1 shows the most commonly used screwless socket bypass, the left side is the bypass inlet, connected with the branch pipe; the right side is the bypass outlet and capillary lock nut, connected with the capillary.

The bypass and the branch pipe are connected by plug-in, that is, the conical insertion section 11 of the bypass is inserted into the wall of the branch pipe that has been punched in advance, and the elastic and toughness of the thick-walled PE branch pipe is used to clamp the bottom surface of the bypass insertion section at the variable diameter 12. Finally, the capillary lock nut 13 is used to connect the capillary with the bypass.

Figure 2 is a screw socket bypass, which adds a clamping nut 23 on the basis of Figure 1, which can make the bypass more firmly fixed on the thick-walled PE branch pipe. When in use, first insert the clamping nut 23 into the bypass insertion section 21 to the right (the internal thread diameter of the clamping nut 23 is slightly larger than the diameter of the bottom surface 22 of the inserting section's variable diameter), and screw into the external thread on the right side of the insertion section 21 24; then insert the bypass insertion section 21 into the thick-walled PE branch pipe that has been drilled; by turning the clamping nut 23 to the left, the thick-walled PE branch pipe is clamped between the clamping nut 23 and the bypass insertion section 21; Finally, the capillary lock nut 25 is used to connect the capillary to the bypass.

When the branch pipe is a thin-walled PE pipe, the thickness, elasticity and toughness of the branch pipe are all reduced, and the insertion section 11 of the non-screw socket bypass in Fig. 1 is easy to fall off from the branch pipe; while for the screw socket bypass in Fig. Generally speaking, when the clamping nut 23 inserted into the thread 24 rotates to the left, since the diameter of the internal thread is larger than the diameter of the bottom surface 22 of the inserting section, the wall of the thin-walled PE pipe will sink into the clamping nut and the bypass inserting section. In the gap between them, a ring-shaped card mark is formed, which is folded outward, and becomes thinner under the rotating friction and extrusion of the clamping nut, and finally separates from the bypass insertion section, that is, the bypass insertion section 21 is easy to disengage from the branch pipe under the reaction force of the clamping nut.

Therefore, for thin-walled branch pipes, the bypass structure shown in Figure 3 and Figure 4 is currently used. The two bypasses shown in Figure 3 and Figure 4 are composed of three parts: an insertion section, a clamping nut, and a capillary connection section. Figure 3 and Figure 4 are screw-in type and hook-in type respectively. The internal thread diameters of the clamping nuts of the two bypasses are both smaller than the diameter of the variable diameter bottom surface of the bypass insertion section, and the outer diameter of the clamping nut is equal to the diameter of the variable diameter bottom surface of the bypass insertion section. Their installation methods are first to insert the bypass inserts (31 and 41) into the thin-walled PE branch pipes that have been drilled, and then insert the clamping nuts (33 and 43) from the right side of the bypass inserts (31 and 41). The external thread (34 and 44) is screwed in to the left and tightened. Since the outer diameter of the clamping nut (33 and 43) is equal to the diameter of the bottom surface of the insert section (32 and 42), the thin-walled branch pipe can be firmly clamped in the insert between the bottom surface of the variable diameter section (32 and 42) and the front surface of the clamping nut (33 and 43); finally screw the bypass tail part 35 into the internal thread 36 on the right side of the bypass insertion section 31 or screw the bypass tail part 45 into the internal thread 46 of the clamping nut 43.

However, the two kinds of bypass parts shown in Fig. 3 and Fig. 4 are composed of four parts, and the structure is complex, the production cost is high, and the installation process is relatively complicated and the construction time is long.

Therefore, in the prior art, there is an urgent need for a socket bypass for irrigation thin-walled branch pipes with low production cost, convenient installation and firm connection.

Contents of the invention

In view of the above problems, the present invention aims to provide a socket bypass for irrigation thin-walled branch pipes, which has low production cost, convenient installation, and firm connection, thereby solving the above problems in the prior art.

In order to achieve the above object, the technical solution provided by the present invention is a socket bypass for irrigation thin-walled branch pipes, which includes a pipe fitting body, a clamping nut and a capillary locking nut.

The pipe fitting body is a composite shaped pipe integrally formed, including an insertion section, a branch pipe locking section, a main body thread section, a thread groove section, a capillary locking section and a bypass tail; the insertion section is a truncated conical structure, and the The diameter of the bottom surface of the truncated cone is Φ ₁ mm, and the insertion section is close to one end of the branch pipe locking section through the variable diameter bottom surface, and the diameter of the branch pipe locking section is Φ ₂ mm, and the diameter of Φ ₂ is smaller than that of Φ ₁ diameter; the other end of the locking section of the branch pipe is adjacent to one end of the threaded section of the main body, and the diameter of the threaded section of the main body is slightly larger than the diameter of the bottom surface of the insertion section; the other end of the threaded section of the main body is adjacent to the thread groove one end of the section; the other end of the threaded groove section is connected to one end of the capillary locking section; the other end of the capillary locking section is adjacent to one end of the bypass tail, and the bypass tail is a truncated cone structure, The other end is connected with capillary and fixed with capillary lock nut.

The front ends of the clamping nuts are arranged adjacent to each other in the circumferential direction with several trapezoidal teeth extending along the direction of the center of the circle to form a ring structure. The thickness of the trapezoidal teeth is about 1mm, made of elastic materials, and can be deformed under force , and has good recovery performance, and is integrally formed with the clamping nut; the outer diameter of the trapezoidal teeth is Φ ₄ mm, which is the same as or slightly larger than the diameter Φ ₁ of the bottom surface of the truncated cone of the insertion section of the pipe fitting body. The inner diameter of the annular trapezoidal latch is Φ ₅ mm, which is the same as the diameter of the branch pipe locking section Φ ₂ mm.

Further, the internal thread of the clamping nut is adapted to the main body thread on the pipe fitting body, and the diameter of the internal thread is Φ ₃ mm slightly smaller than the diameter of the bottom surface of the diameter reduction of the insertion section of the pipe fitting body Φ ₁ mm. The length L2 of the threaded section of the internal thread of the clamping nut is longer _than the length L1 _of the locking section of the branch pipe.

Further, the outer surface of the clamping nut is provided with a plurality of bosses, the bosses are arranged at equal intervals along the circumference of the outer surface, and the bosses extend along the axial direction of the clamping nut.

Further, the diameter of the bottom surface of the insertion section Φ ₁ is 16.5mm, the diameter Φ ₂ of the branch pipe locking section is 12mm, the internal thread diameter Φ ₃ of the lock nut is 16.7mm, and the outer diameter of the trapezoidal locking teeth Diameter is that Φ ₄ is 16.5mm, and the internal diameter of described trapezoidal locking tooth is that Φ ₅ is 12mm, and the length L ₁ of described branch pipe locking section is 8mm, and the thread section length L ₂ of the internal thread of described clamping nut is 15mm.

The present invention has the following beneficial effects due to the adoption of the above scheme: 1. Since the trapezoidal teeth on the clamping nut are elastic, the clamping nut can directly penetrate from the insertion section of the pipe fitting body without dividing the pipe fitting body into two sections So that the clamping nut is screwed in from the thinner middle section (as shown in Figure 3 and Figure 4), this can not only reduce production costs, but also save installation time; 2. When the clamping nut enters the main thread on the pipe body, it starts to rotate When moving towards the direction of the insertion section, the thin-walled branch pipe can be firmly clamped between the ring-shaped trapezoidal teeth that have been restored to their original shape and the reduced-diameter bottom surface of the insertion section of the pipe fitting body.

Description of drawings

Fig. 1 is a background technology product used for thick-walled branch pipes: a structural schematic diagram of a socket bypass without a screw socket;

Fig. 2 is a background technology product used for thick-walled branch pipes: a structural schematic diagram of a screw socket bypass;

Fig. 3 is a background technology product used for thin-walled branch pipes: a structural schematic diagram of a segmented screw socket bypass (thread screw-in type);

Fig. 4 is a background technology product used for thin-walled branch pipes: a structural schematic diagram of a segmented screw socket bypass (hook-in type);

Fig. 5 (a)-(c) is the structural representation of the present invention;

Fig. 6 is a schematic structural view of the pipe fitting body of the present invention;

Fig. 7 (a)-(c) is the structure diagram of clamping nut of the present invention, wherein, Fig. 7 (a) is the three-dimensional structure diagram of clamping nut, Fig. 7 (b) is the sectional view of clamping nut, Fig. 7 ( c) is a top view of the clamp nut;

Fig. 8 (a)-(d) is the installation schematic diagram of the present invention, and wherein, Fig. 8 (a) is the structural representation when clamping nut just enters the pipe fitting body insertion section; Fig. 8 (b) is the trapezoid on the clamping nut Schematic diagram of the structure when the latch completely enters the groove; Fig. 8 (c) is a schematic diagram of the structure when the branch pipe of the present invention is inserted into a hole; Fig. 8 (d) is a pipe wall of the PE branch pipe clamped on the front surface of the trapezoidal latch tooth and the insertion section Schematic diagram of the structure between the bottom surfaces of the variable diameter.

detailed description

The preferred implementation method of the present invention will be described in detail below in conjunction with the accompanying drawings.

The present invention adopts the following technical solutions: a socket bypass for irrigation thin-walled branch pipes, as shown in Figures 5-8, the socket bypass for irrigation thin-walled branch pipes includes a pipe fitting body 1, a clamping nut 2 and a capillary lock Tighten the nut 3.

The composite shape of the pipe fitting body is integrally formed, including the insertion section 11, the branch pipe locking section 13, the main thread section 14, the thread groove section 15, the capillary locking section 16 and the bypass tail 17; the insertion section 11 is a truncated conical structure, The diameter of the bottom surface of the truncated cone is Φ ₁ mm, and the insertion section 11 is close to one end of the branch pipe locking section 13 through the variable diameter bottom surface 12, and the diameter of the branch pipe locking section 13 is Φ ₂ mm, and the diameter of Φ ₂ is less than the diameter of Φ ₁ ; The other end of the branch pipe locking section 13 is close to one end of the main body threaded section 14, and the diameter of the main body threaded section 14 is slightly larger than the bottom surface diameter of the insertion section 11; the other end of the main body threaded section 14 is close to one end of the threaded groove section 15; the threaded groove section The other end of 15 is connected to one end of the capillary locking section 16; the other end of the capillary locking section is adjacent to one end of the bypass tail 17, and the bypass tail 17 is in a truncated conical structure, and the other end is connected with the capillary, and the capillary lock nut 3 fixed.

The front ends of the clamping nut 2 are provided with several trapezoidal teeth 21 extending along the direction of the center of the circle adjacent to each other in the circumferential direction, forming a ring structure. The thickness of the trapezoidal teeth 21 is about 1mm, made of elastic material, and can be deformed under force, and It has good recovery performance and is integrally formed with the clamping nut 2; the outer diameter of the trapezoidal locking teeth 21 is Φ ₄ mm, which is the same as or slightly larger than the diameter Φ ₁ of the bottom surface of the truncated cone of the insertion section 11 of the pipe fitting body 1, and the trapezoidal locking teeth 21 The inner diameter of Φ ₅ mm is the same as the diameter of Φ ₂ mm of the branch pipe locking section 13.

Further, the internal thread of the clamping nut 2 is adapted to the main body thread on the pipe fitting body 1, and its internal thread diameter Φ ₃ mm is slightly larger than the bottom surface diameter Φ ₁ mm of the insertion section of the pipe fitting body 1. The clamping nut 2 The length L ₂ of the threaded section of the internal thread is longer than the length L ₁ of the locking section 13 of the branch pipe.

Further, the outer surface of the clamping nut 2 is provided with a plurality of bosses, the bosses are arranged at equal intervals along the circumference of the outer surface, and the bosses extend along the axial direction of the clamping nut 2 .

Further, the bottom surface diameter Φ ₁ of the insertion section 11 is 16.5mm, the diameter Φ ₂ of the branch pipe locking section 13 is 12mm, the internal thread diameter Φ ₃ of the locking nut 2 is 16.7mm, and the outer diameter of the trapezoidal locking tooth 21 is Φ ₄ is 16.5mm, the inner diameter of trapezoidal locking tooth 21 is Φ ₅ and is 12mm, the length L ₁ of branch pipe locking section 13 is 8mm, and the threaded section length L ₂ of the internal thread of clamping nut 2 is 15mm.

The use steps of the present invention are as follows:

1. Put the clamping nut 2 on the insertion section 11 of the pipe fitting body, and push it slightly to the right. At this time, the trapezoidal locking teeth 21 on the clamping nut are deformed and folded to the left (as shown in Figure 8(a));

2. When the clamping nut 2 continues to move to the right and is screwed into the main thread 14 on the pipe fitting body, the trapezoidal locking tooth 21 enters the position of the locking section 13 of the branch pipe, and under the action of elasticity, the trapezoidal locking tooth 21 returns to its original shape (as shown in Figure 8 (b));

3. Use a puncher to punch a small hole on the thin-walled branch pipe 4, and insert the pipe fitting body insertion section 11 into the small hole (as shown in Figure 8(c));

4. The rotary clamping nut 2 moves to the left and is gradually tightened. At this time, the thin-walled branch pipe 4 is clamped by the front end of the trapezoidal locking tooth 21 and the variable diameter bottom surface 12 of the insertion section, that is, the present invention can be firmly fixed on the branch pipe ( Figure 8(d));

5. Insert the capillary into the bypass tail 17, and fix it with the capillary lock nut 3.

The above example is only an illustration of a preferred solution of the present invention, wherein the structure and connection mode of each part can be changed, and all equivalent transformations and improvements carried out on the basis of the present invention should be included in the protection scope of the present invention within.

Claims (3)

1. A socket bypass for irrigation thin-walled branch pipes, characterized in that: it includes a pipe fitting body, a clamping nut and a capillary lock nut; Tight section, main body thread section, thread groove section, capillary locking section and bypass tail; the insertion section is a truncated cone structure, the bottom surface diameter of the truncated cone is Φ ₁ mm, and the insertion section is adjacent to the bottom surface through the variable diameter One end of the locking section of the branch pipe, the diameter of the locking section of the branch pipe is Φ ₂ mm, and the diameter of Φ ₂ is smaller than the diameter of Φ ₁ ; the other end of the locking section of the branch pipe is close to one end of the threaded section of the main body, The diameter of the threaded section of the main body is slightly larger than the diameter of the bottom surface of the insertion section; the other end of the threaded section of the main body is adjacent to one end of the thread groove section; the other end of the thread groove section is connected to the capillary locking section One end; the other end of the capillary locking section is adjacent to one end of the bypass tail, the bypass tail has a truncated conical structure, and the other end is connected to the capillary and fixed with a capillary lock nut; The front ends of the clamping nuts are arranged adjacent to each other in the circumferential direction with several trapezoidal teeth extending along the direction of the center of the circle to form a ring structure. The thickness of the trapezoidal teeth is about 1mm, made of elastic materials, and can be deformed under force , and has good recovery performance, and is integrally formed with the clamping nut; the outer diameter of the trapezoidal teeth is Φ ₄ mm, which is the same as or slightly larger than the diameter of the bottom surface of the truncated cone of the insertion section of the pipe fitting body Φ ₁ , and the trapezoidal The inner diameter of the locking teeth is Φ ₅ mm, which is the same as the diameter of the branch pipe locking section Φ ₂ mm; the internal thread of the clamping nut is adapted to the main thread on the pipe body, and its internal thread diameter is Φ ₃ mm Slightly larger than the bottom diameter Φ ₁ mm of the reduced diameter of the insertion section of the pipe fitting body, the length L ₂ of the threaded section of the internal thread of the clamping nut is longer than the length L ₁ of the locking section of the branch pipe. 2. A socket bypass for irrigation thin-walled branch pipes according to claim 1, characterized in that: the outer surface of the clamping nut is provided with a plurality of bosses, and the bosses are arranged along the outer surface of the outer surface. Arranged at equal intervals in the circumferential direction, the bosses extend along the axial direction of the clamp nut. 3. A socket bypass for irrigation thin-walled branch pipes according to claim ₂ , characterized in that: the bottom diameter Φ1 _of the insertion section is 16.5mm, and the diameter Φ2 of the branch pipe locking section is 12mm , the internal thread diameter of the locking nut Φ ₃ is 16.7mm, the outer diameter of the trapezoidal locking teeth is Φ ₄ is 16.5mm, the inner diameter of the trapezoidal locking teeth is Φ ₅ is 12mm, the branch pipe is locked The segment length L ₁ is 8 mm, and the thread segment length L ₂ of the internal thread of the clamping nut is 15 mm.