Ball valve with residual glue groove

Abstract

The utility model relates to the technical field of pipeline systems, in particular to a ball valve with a residual glue groove, which comprises a valve body component, a support block and an end pipe, the support block is mounted on the inner circumference of the end of the valve body component, the end pipe is mounted on the valve body component, and the end pipe is communicated with a through hole on the support block; the mounting cavity and the residual glue groove are formed between the valve body assembly and the end pipe and between the supporting block and the end pipe, the mounting cavity is communicated with the residual glue groove, a welding layer is mounted in the mounting cavity and abuts against the inner wall of the mounting cavity, and the valve body assembly and the supporting block both abut against the end pipe. The supporting block is installed on the inner circumference of the end of the valve body assembly, the end face of the valve body assembly and the end face of the supporting block abut against the end face of the end pipe, the welding layer is installed in the installation cavity, the welding layer is welded, molten beads generated by welding of the welding layer are contained in a residual glue groove communicated with the installation cavity, and the situation that the drift diameter of the valve body assembly is reduced due to the fact that the molten beads are flanged is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline system technical field more particularly, relate to a ball valve with excess glue groove. BACKGROUND

[0002] The existing PE ball valve plane welding structure is that the valve body 11 and the support block 2 are combined, and the whole end surface is welded together with the end surface of the end pipe 3, and the structure has the following problems: first, the valve is large in size, is large in valve well, is inconvenient to carry and install, and is high in cost; second, the welding area is large, the product assembly and welding time are long, and the efficiency is low; third, the hot melting produces the flanging 6, reduces the valve diameter, and affects the flow and pressure drop of the medium, such as Figure 1 As shown. SUMMARY

[0003] The utility model discloses a ball valve with excess glue groove, which can avoid the flanging produced by the welding surface after hot melting to reduce the diameter of the valve.

[0004] To solve the above technical problems, the utility model adopts the technical scheme of:

[0005] A ball valve with excess glue groove is provided, which comprises a valve body assembly, a support block and an end pipe, the support block is installed on the inner periphery of the end portion of the valve body assembly, the end pipe is installed on the valve body assembly, and the end pipe is in communication with the through hole on the support block; further comprising an installation cavity and an excess glue groove arranged between the valve body assembly, the support block and the end pipe, the installation cavity and the excess glue groove are in communication, a welding layer is installed in the installation cavity, the welding layer is in abutment with the inner wall of the installation cavity, and the valve body assembly and the support block are in abutment with the end pipe.

[0006] The ball valve with excess glue groove of the utility model is installed by installing the support block on the inner periphery of the end portion of the valve body assembly, making the end surfaces of the valve body assembly and the support block in abutment with the end surface of the end pipe, installing the welding layer into the installation cavity, welding the welding layer, and containing the molten bead produced by the welding layer in the excess glue groove in communication with the installation cavity to prevent the molten bead from reducing the diameter of the valve body assembly.

[0007] Further, the end surface area of the welding layer is smaller than the sum of the end surface areas of the valve body assembly and the support block. Only the local end surfaces of the valve body assembly and the support block are welded, and the welding area is small, which is high in efficiency.

[0008] Further, the vertical length of the excess glue groove is less than the horizontal length of the excess glue groove. The melt bead flows into the excess glue groove after being extruded in a softened state. The horizontal length of the excess glue groove is longer, so that the melt bead flows along the end pipe direction. The height requirement of the excess glue groove is low, and the volume of the valve body assembly is avoided from being increased.

[0009] Further, the outer periphery of the end pipe is provided with a reinforcing chamfer, and the reinforcing chamfer is located at the end of the end pipe. The reinforcing chamfer can increase the wall thickness of the end of the end pipe, prevent the wall thickness of the end of the end pipe from being too small due to the arrangement of the excess glue groove, and reduce the strength. At the same time, the reinforcing chamfer can also enhance the tensile strength and bending strength of the end of the end pipe.

[0010] Further, the excess glue groove comprises a support block groove and an end pipe groove which are in communication with each other. The support block groove is arranged on the support block, and the end pipe groove is arranged on the end pipe. When the ball valve is installed, the support block groove and the end pipe groove are spliced to form the excess glue groove.

[0011] Further, the welding layer comprises a first welding layer and a second welding layer which are connected to each other. The first welding layer is located between the valve body assembly and the end pipe, and the second welding layer is located between the support block and the end pipe. When the end pipe is installed, the end faces of the valve body assembly and the support block abut against the end face of the end pipe. The first welding layer and the second welding layer which are connected to each other are loaded into the installation cavity. The first welding layer and the second welding layer are welded, and the installation is completed.

[0012] Further, the excess glue groove is connected to the second welding layer and is away from the two end faces of the second welding layer in the axial direction of the end pipe. The two ends of the valve body are referred to as the left end and the right end. Taking the excess glue groove of the right end as an example, when the left side end face of the excess glue groove is located on the right side of the welding layer, the flow of the melt bead generated by the welding layer will be hindered and it is difficult to enter the excess glue groove, which affects the welding quality. When the left side end face of the excess glue groove is located on the left side of the welding layer, the glue sealing and supporting strength of the support block at this position will be weakened.

[0013] Further, the valve body assembly comprises a valve body, a valve rod and a ball core. The valve body is provided with a mounting hole for mounting the valve rod. The valve rod passes through the mounting hole. One end of the valve rod is located outside the valve body, and the other end is mounted on the ball core. The ball core is movably mounted in the valve body. The support block is mounted on the inner periphery of the end of the valve body. The end pipe is mounted on the valve body. The installation cavity and the excess glue groove are arranged between the valve body, the support block and the end pipe. When the ball valve is installed, one end of the valve rod is mounted on the ball core. The other end of the valve rod passes through the mounting hole. The support block is mounted on the inner periphery of the end of the valve body. The end face of the end pipe abuts against the valve body and the support block. The welding layer is welded, and the installation of the ball valve is completed.

[0014] Further, the inner side of the support block is provided with a mounting groove, and a first sealing element is mounted in the mounting groove and abuts against the ball core.

[0015] Further, a second sealing element is arranged between the valve rod and the inner wall of the mounting hole.

[0016] Compared with the prior art, the ball valve with the excess glue groove has the following beneficial effects:

[0017] The ball valve with the excess glue groove has the following beneficial effects: 1. The welding beads generated by welding are accommodated in the excess glue groove connected with the mounting cavity, so that the welding beads are prevented from being turned up to reduce the pass diameter of the valve body assembly; 2. Only the local end surfaces of the valve body, the support block and the end pipe are welded, so that the welding area is small and the efficiency is high; and 3. The excess glue groove extends along the direction of the end pipe, and the volume requirement of the valve body is low. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the ball valve in the background art;

[0019] Figure 2 It is a structural schematic view of the ball valve with the excess glue groove of the utility model;

[0020] Figure 3 It is a structural schematic view of the excess glue groove of the utility model.

[0021] In the drawings: 1, valve body assembly; 11, valve body; 111, base; 12, valve rod; 121, valve rod main body; 122, limiting portion; 123, second sealing element; 124, third sealing element; 125, operating cap; 13, ball core; 2, support block; 21, first sealing element; 3, end pipe; 31, enhanced chamfer; 4, welding layer; 41, first welding layer; 42, second welding layer; 5, excess glue groove; 51, support block groove; 52, end pipe groove; 6, turned-up edge. DETAILED DESCRIPTION

[0022] The utility model will be further described below in combination with specific implementation manners. Among them, the drawings are only used for example description, and the representation is only a schematic view, not a real object drawing, and cannot be understood as a limitation on the patent; in order to better illustrate the embodiments of the utility model, some components of the drawings will be omitted, enlarged or reduced, and the size of the actual product is not represented; for those skilled in the art, it is understandable that some known structures and their descriptions in the drawings can be omitted.

[0023] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0024] Example 1

[0025] like Figure 2 and Figure 3 The first embodiment of the ball valve with a residual glue groove of the present invention is shown, including a valve body assembly 1, a support block 2 and an end pipe 3. The support block 2 is installed on the inner circumference of the end of the valve body assembly 1, and the end pipe 3 is installed on the valve body assembly 1. The end pipe 3 communicates with the through hole on the support block 2. The ball valve also includes an installation cavity and a residual glue groove 5 disposed between the valve body assembly 1, the support block 2 and the end pipe 3. The installation cavity and the residual glue groove 5 are connected. A welding layer 4 is installed in the installation cavity and abuts against the inner wall of the installation cavity. The valve body assembly 1 and the support block 2 both abut against the end pipe 3.

[0026] In this invention, a ball valve with a residual glue groove is installed by mounting a support block 2 on the inner circumference of the end of the valve body assembly 1, so that the end faces of the valve body assembly 1 and the support block 2 abut against the end face of the end pipe 3. The welding layer 4 is then inserted into the mounting cavity and welded. The molten beads produced by welding the welding layer 4 are contained in the residual glue groove 5, which is connected to the mounting cavity, to prevent the molten beads from turning over and reducing the diameter of the valve body assembly 1.

[0027] In this embodiment, the valve body assembly 1 has two ends, and two support blocks 2 and two end tubes 3 are provided. The two support blocks 2 are respectively installed on the inner circumference of the two ends of the valve body assembly 1, and the two end tubes 3 are welded to the two ends of the valve body assembly 1, as shown below. Figure 2 As shown.

[0028] The end face area of ​​weld layer 4 is smaller than the sum of the end face areas of valve body assembly 1 and support block 2. Welding is only performed on a localized portion of the end faces of valve body assembly 1 and support block 2, resulting in a small welding area and high efficiency.

[0029] The working principle of the ball valve with the excess glue groove of the embodiment is as follows: during installation, the support blocks 2 are installed on the inner periphery of the two end portions of the valve body assembly 1, the valve body assembly 1 with the installed two end support blocks 2 and the two end pipes 3 are respectively clamped on the corresponding clamps of a special plane welding machine, the left and right two end pipes 3 are simultaneously welded with the valve body assembly 1 according to the set welding process parameters, the end faces of the valve body assembly 1 and the support blocks 2 abut against the end faces of the end pipes 3, the welding layer 4 in the installation cavity at the local end faces of the valve body assembly 1 and the support blocks 2 is welded, the molten beads generated by the welding of the welding layer 4 are extruded and then flow into the excess glue groove 5 connected with the installation cavity, and are contained in the excess glue groove 5, so that the pass of the valve body assembly 1 is not reduced.

[0030] Embodiment two

[0031] The embodiment is the second embodiment of the ball valve with the excess glue groove of the utility model, is similar to the first embodiment, and the difference lies in that the vertical length of the excess glue groove 5 is less than the horizontal length of the excess glue groove 5. The molten beads flow into the excess glue groove 5 after being extruded in a softened state, the horizontal length of the excess glue groove 5 is relatively long, so that the molten beads flow along the direction of the end pipe 3, the height requirement of the excess glue groove 5 is low while meeting the space requirement of containing the molten beads, and the volume of the valve body assembly 1 is avoided from being increased. In the embodiment, the excess glue groove 5 is a square groove.

[0032] As shown in Figure 2 and 3 , the outer periphery of the end pipe 3 is provided with a reinforced chamfer 31, and the reinforced chamfer 31 is located at the end portion of the end pipe 3. The reinforced chamfer 31 can increase the wall thickness of the end portion of the end pipe 3, prevent the setting of the excess glue groove 5 from making the wall thickness of the end portion of the end pipe 3 too small and reducing the strength, and simultaneously enhance the tensile strength and bending strength of the end portion of the end pipe 3.

[0033] As shown in Figure 3 , the excess glue groove 5 includes a support block groove 51 and an end pipe groove 52 which are in communication with each other, the support block groove 51 is arranged on the support block 2, and the end pipe groove 52 is arranged on the end pipe 3. During installation of the ball valve, the support block groove 51 and the end pipe groove 52 are spliced to form the excess glue groove 5.

[0034] As shown in Figure 3 , the welding layer 4 includes a first welding layer 41 and a second welding layer 42 which are connected with each other, the first welding layer 41 is located between the valve body assembly 1 and the end pipe 3, and the second welding layer 42 is located between the support block 2 and the end pipe 3. During installation of the end pipe 3, the end faces of the valve body assembly 1 and the support block 2 abut against the end face of the end pipe 3, the first welding layer 41 and the second welding layer 42 which are connected with each other are installed in the installation cavity, the first welding layer 41 and the second welding layer 42 are welded, and the installation is completed.

[0035] The end face of the excess glue groove 5 close to the center of the valve body assembly 1 is connected with the second welding layer 42, and there is a distance between the end face of the excess glue groove 5 and the two end faces of the second welding layer 42 in the axial direction of the end pipe 3. The two ends of the valve body 11 are called the left end and the right end, and the excess glue groove 5 at the right end is taken as an example. When the left end face of the excess glue groove 5 is located on the right side of the welding layer 4, the flow of the molten beads generated by the welding layer 4 is hindered and it is difficult to enter the excess glue groove 5, which affects the welding quality. When the left end face of the excess glue groove 5 is located on the left side of the welding layer 4, the sealing and supporting strength of the support block 2 at the position is weakened.

[0036] The working principle of the ball valve with the excess glue groove in the embodiment is as follows: when the end pipe 3 is installed, the end faces of the valve body assembly 1 and the support block 2 are abutted with the end face of the end pipe 3, the first welding layer 41 and the second welding layer 42 in the installation cavity are welded, the molten beads generated by the first welding layer 41 and the second welding layer 42 are extruded and flow into the excess glue groove 5, and the flow of the molten beads is not hindered while the sealing and supporting strength of the support block 2 at the position is ensured, and the wall thickness of the end of the end pipe 3 is increased and the tensile strength and the bending strength of the end of the end pipe 3 are enhanced.

[0037] Embodiment three

[0038] The embodiment is the third embodiment of the ball valve with the excess glue groove of the utility model, which is similar to the second embodiment, and the difference lies in that the valve body assembly 1 comprises a valve body 11, a valve rod 12 and a ball core 13, the valve body 11 is provided with a mounting hole for mounting the valve rod 12, the valve rod 12 passes through the mounting hole, one end of the valve rod 12 is located outside the valve body 11, the other end of the valve rod 12 is mounted on the ball core 13, the ball core 13 is movably mounted in the valve body 11, the support block 2 is mounted in the end inner periphery of the valve body 11, the end pipe 3 is mounted on the valve body 11, and the installation cavity and the excess glue groove 5 are arranged between the valve body 11, the support block 2 and the end pipe 3. When the ball valve is installed, one end of the valve rod 12 is mounted on the ball core 13, the other end of the valve rod 12 passes through the mounting hole, the support block 2 is mounted in the end inner periphery of the valve body 11, the end face of the end pipe 3 is abutted with the valve body 11 and the support block 2, the welding layer 4 is welded, and the installation of the ball valve is completed.

[0039] The inner side of the support block 2 is provided with a mounting groove, the first sealing member 21 is mounted in the mounting groove, and the first sealing member 21 is abutted with the ball core 13. When the ball valve is installed, the first sealing member 21 is mounted in the mounting groove of the support block 2, and then the support block 2 is mounted in the end inner periphery of the valve body 11, so that the first sealing member 21 is abutted with the ball core 13, and the sealing of the ball core 13 is realized when the ball valve is closed.

[0040] A second sealing member 123 is arranged between the valve stem 12 and the inner wall of the mounting hole. Figure 2

[0041] In this embodiment, the valve stem 12 comprises a valve stem body 121 and a limiting portion 122, the diameter of the valve stem body 121 is smaller than that of the limiting portion 122, the valve stem body 121 is mounted in the mounting hole, the upper surface of the limiting portion 122 abuts against the valve body, and the limiting portion 122 is connected with the ball core 13. The limiting portion 122 can limit the depth of the valve stem 12 penetrating into the mounting hole, facilitating installation. A third sealing member 124 is further arranged between the limiting portion 122 and the valve body 11, the two end surfaces of the third sealing member 124 abut against the limiting portion 122 and the valve body 11 respectively, and the third sealing member 124 can realize sealing between the limiting portion 122 and the valve body 11. The second sealing member 123 and the third sealing member 124 cooperate to realize double sealing of the mounting hole.

[0042] The first sealing member 21, the second sealing member 123 and the third sealing member 124 are all sealing rings.

[0043] The bottom of the valve body 11 is fixedly welded with a base 111, and the top of the valve stem body 121 is fixedly mounted with an operating cap 125, and the valve stem body 121 and the operating cap 125 are connected through buckling, as shown in Figure 2

[0044] The working principle of the ball valve with the excess glue groove in this embodiment is as follows: when the ball valve is installed, the third sealing member 124 is sleeved on the valve stem 12, the limiting portion 122 supports the third sealing member 124, one end of the valve stem 12 is mounted on the ball core 13, a plurality of second sealing members 123 are mounted in the mounting hole, the other end of the valve stem 12 penetrates through the mounting hole, the valve stem body 121 and the mounting hole extrude the second sealing member 123, the limiting portion 122 and the valve body 11 extrude the third sealing member 124, and double sealing of the mounting hole is realized; the ball core 13 is movably mounted in the valve body 11; the first sealing member 21 is mounted in the mounting groove of the support block 2, the operating cap 125 is mounted on the valve stem body 121, the valve body 11 with the installed valve stem 12 and ball core 13 and the support block 2 with the installed first sealing member 21 and sealing sheath are respectively clamped on the installation equipment, the second reverse buckle on the support block 2 is buckled into the second reverse groove on the valve body 11 for installation; after the support block 2 is mounted on the valve body 11, the two end surfaces of the first sealing member 21 abut against the ball core 13 and the mounting groove respectively; the valve body 11 with the installed left and right end support blocks 2 and the left and right end pipes 3 are respectively clamped on the corresponding clamps of the special plane welding machine, and the left and right end pipes 3 are simultaneously welded with the valve body 11 according to the set welding process parameters, and the base 111 is welded on the bottom of the valve body 11, and the installation of the ball valve is completed. ​​

[0045] In the specific contents of the above specific embodiments, each technical feature can be combined arbitrarily without contradiction, and in order to make the description simple, all possible combinations of the above technical features are not described, however, as long as the combination of the technical features does not exist contradiction, it should be considered as the scope of the description.

[0046] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to exhaust all the embodiments. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A ball valve having a surplus glue groove, comprising a valve body assembly (1), a support block (2) and an end pipe (3), the support block (2) is installed in the end inner periphery of the valve body assembly (1), the end pipe (3) is installed to the valve body assembly (1), the end pipe (3) communicates with the through hole on the support block (2), characterized in that, The installation cavity and the excess glue groove (5) are in communication, the welding layer (4) is installed in the installation cavity, the welding layer (4) abuts against the inner wall of the installation cavity, and the valve body assembly (1) and the support block (2) abut against the end pipe (3).

2. The ball valve with a residual glue groove according to claim 1, characterized in that, The end surface area of the welding layer (4) is less than the sum of the end surface areas of the valve body assembly (1) and the support block (2).

3. The ball valve with a residual glue groove according to claim 1, characterized in that, The vertical length of the excess glue groove (5) is less than the horizontal length of the excess glue groove (5).

4. The ball valve with a surplus groove according to claim 2, characterized in that, The end pipe (3) is provided with a reinforced chamfer (31) on the outer periphery, and the reinforced chamfer (31) is located at the end of the end pipe (3).

5. The ball valve with a residual glue groove according to claim 1, characterized in that, The excess glue groove (5) comprises a support block groove (51) and an end pipe groove (52) in communication with each other, the support block groove (51) is arranged on the support block (2), and the end pipe groove (52) is arranged on the end pipe (3).

6. The ball valve with a surplus groove according to claim 1, characterized in that, The welding layer (4) comprises a first welding layer (41) and a second welding layer (42) connected to each other, the first welding layer (41) is located between the valve body assembly (1) and the end pipe (3), and the second welding layer (42) is located between the support block (2) and the end pipe (3).

7. The ball valve with a residual glue groove according to claim 6, characterized in that, The excess glue groove (5) is connected to the second welding layer (42) near the end surface of the center of the valve body assembly (1), and there is a distance between the two end surfaces of the second welding layer (42) in the axial direction of the end pipe (3).

8. The ball valve with a residual glue groove according to any one of claims 1 to 7, characterized in that, The valve body assembly (1) comprises a valve body (11), a valve stem (12) and a ball core (13), the valve body (11) is provided with a mounting hole for mounting the valve stem (12), the valve stem (12) passes through the mounting hole, one end of the valve stem (12) is located outside the valve body (11), the other end is mounted on the ball core (13), the ball core (13) is movably mounted in the valve body (11), the support block (2) is mounted on the inner periphery of the end of the valve body (11), the end pipe (3) is mounted on the valve body (11), and the installation cavity and the excess glue groove (5) are arranged between the valve body (11), the support block (2) and the end pipe (3).

9. The ball valve with a residual glue groove according to claim 8, characterized in that, The inner side of the support block (2) is provided with a mounting groove, a first sealing element (21) is installed in the mounting groove, and two end surfaces of the first sealing element (21) abut against the mounting groove and the ball core (13) respectively.

10. The ball valve with a residual glue groove according to claim 9, characterized in that, The second sealing element (123) is arranged between the valve stem (12) and the inner wall of the mounting hole.

Images