Inclined rod discharging ball valve

Abstract

According to the technical scheme, the inclined rod discharging ball valve is characterized in that the inclined rod discharging ball valve comprises a first valve body, a second valve body, a ball body and a valve rod, an installation cavity is formed in the first valve body, the second valve body is detachably installed on the first valve body and used for covering one side of the installation cavity, and a discharging opening is formed in the second valve body; the valve rods are installed at the upper end of the first valve body, each valve rod comprises a first central axis, and the valve rods are symmetrically arranged along the first central axes. The ball body comprises a second central axis arranged in the vertical direction, the ball body is symmetrically arranged along the second central axis, the first central axis and the second central axis intersect at the center of the ball body, and an oblique angle of 15 degrees is formed between the first central axis and the second central axis; according to the inclined rod discharging ball valve, the interference problem between the ball valve and a reaction kettle can be effectively avoided, the flow channel is designed to be optimized in the shortest length, medium residues can be avoided, the installation structure is additionally arranged, and the inclined rod discharging ball valve better meets the actual requirement.

Description

Technical Field

[0001] The utility model relates to a ball valve, more specifically, it relates to an inclined rod discharge ball valve. Background Art

[0002] The tilt rod discharge ball valve is a special structure discharge ball valve, which is mainly used in pharmaceutical fermentation reactors, chemical batching tanks, biological reactors, petrochemical processes, cosmetic mixing containers, food batching tanks and other industrial containers. This valve uses a tilt rod mechanism to open and close, and the valve core rotates by operating the tilt rod to control the on-off and flow of the fluid.

[0003] The existing inclined rod discharge ball valve has the following problems: 1. The ball valve will interfere with the reactor at the bottom of the reactor;

[0004] 2. If the ball valve flow channel is too long, the medium will remain, thus causing problems with the ball valve;

[0005] 3. The feed end face lacks a suitable connection structure, making it impossible to flexibly install a flat flange or a curved flange. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a tilting rod discharge ball valve, which can effectively avoid the interference problem between the ball valve and the reactor. The flow channel is designed to be optimized for the shortest length, which can avoid medium residue and increase the installation structure to better meet actual requirements.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tilting rod discharge ball valve, comprising a first valve body, a second valve body, a ball and a valve stem, wherein the first valve body is provided with an installation cavity for installing the ball, the second valve body is detachably installed on the first valve body and is used to cover one side of the installation cavity, and the second valve body is provided with a discharge port for the ball to extend out;

[0008] The valve stem is installed at the upper end of the first valve body, the valve stem includes a first central axis, and the valve stem is symmetrically arranged along the first central axis;

[0009] The sphere includes a second central axis arranged along the vertical direction, the sphere is symmetrically arranged along the second central axis, the first central axis and the second central axis intersect at the center of the sphere, and an oblique angle of 15° is formed between the first central axis and the second central axis;

[0010] An installation structure for flange installation is provided at one end of the first valve body away from the second valve body.

[0011] In summary, the utility model has the following beneficial effects: the design of the angle enables a proper bevel angle to be formed between the valve stem and the ball, thereby effectively avoiding the situation where the ball valve interferes with the reactor at the bottom of the reactor.

[0012] The valve stem can be symmetrically arranged along the first central axis, and can always avoid interference with the reactor during the rotation of the valve stem, thereby maintaining stability during use.

[0013] The installation cavity is matched with the design of the second valve body to reduce the redundant space in the cavity, and the shortest length optimization is adopted on the flow channel to maximize the avoidance of medium residue. The ball can be extended into the discharge port of the reactor, and there is no gap between the reactor and the ball, so the discharge effect is good.

[0014] The design of the mounting structure can facilitate the installation of a flat flange or a curved flange to the feed port of the first valve body, thereby being more in line with practical requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a tilt-rod discharge ball valve;

[0016] Figure 2 This is an enlarged schematic diagram of point A;

[0017] Figure 3 is a schematic diagram of the end face angle;

[0018] Figure 4 Schematic diagram of step sliding fit.

[0019] Figure numerals: 1. first valve body; 11. mounting cavity; 12. mounting structure; 13. first sealing groove; 14. first sealing ring; 15. second sealing groove; 151. guide surface; 2. second valve body; 21. discharge port; 22. second sealing ring; 23. third sealing ring; 24. first mounting groove; 25. second mounting groove; 3. ball; 4. valve stem; 41. extension arm; 5. first end face; 6. second end face; 7. step; 71. first step surface; 72. second step surface; 73. limit block; 731. limit surface; 74. arc surface; 75. third sealing groove; 8. connecting seat; 81. fixing block; 9. sliding groove; 91. elastic member; 92. sliding block. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0021] Reference Figures 1 to 4 As shown, in order to achieve the above purpose, the utility model provides the following technical solutions: a tilt rod discharge ball valve, comprising a first valve body 1, a second valve body 2, a ball 3 and a valve stem 4, the first valve body 1 is provided with a mounting cavity 11 for mounting the ball 3, the second valve body 2 is detachably mounted on the first valve body 1, and is used to cover one side of the mounting cavity 11, and the second valve body 2 is provided with a discharge port 21 for the ball 3 to extend out;

[0022] The valve stem 4 is mounted on the upper end of the first valve body 1, and the valve stem 4 includes a first central axis, and the valve stem 4 is symmetrically arranged along the first central axis;

[0023] The sphere 3 includes a second central axis arranged in the vertical direction. The sphere 3 is symmetrically arranged along the second central axis. The first central axis and the second central axis intersect at the center of the sphere 3. An oblique angle of 15° is formed between the first central axis and the second central axis.

[0024] An end of the first valve body 1 away from the second valve body 2 is provided with a mounting structure 12 for flange mounting.

[0025] like Figure 3 As shown, the first central axis is M, the second central axis is N, an angle a is formed between M and N, and the angle a is 15°.

[0026] The design of the angle a enables the valve stem 4 and the ball 3 to form an appropriate oblique angle, thereby effectively avoiding the interference of the ball valve with the reactor at the bottom of the reactor. The valve stem 4 can be symmetrically arranged along the first central axis, which can always avoid interference with the reactor during the rotation of the valve stem 4, and maintain stability during use.

[0027] The mounting cavity 11 cooperates with the design of the second valve body 2 to reduce the redundant space in the cavity, and adopts the shortest length optimization on the flow channel to maximize the avoidance of medium residue. The ball 3 can extend into the discharge port of the reactor, and there is no gap between the reactor and the ball 3, so the discharge effect is good.

[0028] The design of the mounting structure 12 can facilitate the installation of a flat flange or a curved flange to the feed port of the first valve body 1, thereby being more in line with practical requirements.

[0029] The first valve body 1 includes a first end face 5 disposed vertically, the second valve body 2 includes a second end face 6 disposed vertically, and the first central axis forms an angle of 15° with the upper end of the first end face 5;

[0030] The second central axis forms an angle of 15° with the lower end of the second end surface 6 .

[0031] like Figure 3As shown, the first end face 5 is L, intersecting with the first central axis M at the upper position of the drawing, forming an angle b;

[0032] The second end face 6 is P, intersecting the first central axis M at a lower position in the drawing to form an angle c.

[0033] The angle b and the angle c are both 15°, thereby ensuring that the first end face 5 and the second end face 6 both remain in a vertical state, and the valve stem 4 is inclined toward the first end face 5 .

[0034] The mounting structure 12 includes a connecting groove and mounting holes. The mounting holes are provided in multiple groups and are arranged along the circumference of the connecting groove.

[0035] The arrangement of this structure can facilitate the embedding of the flange protrusion through the connecting groove, and then realize the installation through the corresponding connecting holes on the flange and the mounting holes, which greatly improves the stability and convenience of the installation.

[0036] A first sealing groove 13 is provided in the first valve body 1 , and a first sealing ring 14 is provided in the first sealing groove 13 . When the ball 3 is installed in the installation cavity 11 , the outer side of the ball 3 is abutted against the first sealing ring 14 .

[0037] With this structural design, during the ball valve assembly process, after the ball 3 is installed in the installation cavity 11 , the installation of the second valve body 2 can push the ball 3 and the first sealing ring 14 to achieve abutment and sealing.

[0038] A step 7 is provided on one side of the second valve body 2, and a first step surface 71 matched with the first valve body 1 and a second step surface 72 matched with the ball 3 are provided on the step 7;

[0039] A second sealing ring 22 is disposed on the first step surface 71 , and a third sealing ring 23 is disposed on the second step surface 72 .

[0040] With this structural design, when the second valve body 2 is assembled to one side of the first valve body 1, the second valve body 2 can limit the ball 3 and push the ball 3 to move into the installation cavity 11. At this time, one side of the ball 3 abuts against the first sealing ring 14 and the other side abuts against the third sealing ring 23, thereby forming a sealing effect between the ball 3 and the first valve body 1 and the second valve body 2 respectively.

[0041] At the same time, the second valve body 2 forms a seal with the first valve body 1 through the second sealing ring 22 .

[0042] The design of the step 7 structure can increase the contact area and reduce the probability of leakage.

[0043] A second sealing groove 15 with a square cross-section is provided on the first valve body 1, and the step 7 includes a limit block 73 with an L-shaped structure. The limit block 73 is respectively abutted against the inner wall and the outer wall of the second sealing groove 15, and the second sealing ring 22 is installed between the limit block 73 and the second sealing groove 15.

[0044] The second sealing groove 15 is provided with a guide surface 151 which is inclined, and the limit block 73 is provided with a limit surface 731 which matches the guide surface 151. The design of this structure can form a high seal by squeezing the second sealing ring 22 during the connection between the first valve body 1 and the second valve body 2, and can also form a hard seal by making the first valve body 1 and the second valve body 2 abut at multiple locations.

[0045] The step 7 is provided with an arc surface 74 that matches the ball 3, and the upper end of the arc surface 74 is provided with a third sealing groove 75 for installing the third sealing ring 23. The design of this structure can play a role in stably pushing the ball 3 to move through the contact between the arc surface 74 and the ball 3 during the installation process of the second valve body 2.

[0046] Further, such as Figure 4 As shown, the step 7 is slidably connected to the second valve body 2, a sliding groove is provided in the second valve body 2 along its height direction, an elastic member (such as a spring or a rubber block) is provided in the sliding groove, and a sliding block is provided on the step, which is slidably connected in the sliding groove and abuts against the elastic member.

[0047] When the elastic member is in a fully extended state, the lowest point of the limit surface is close to the highest point of the guide surface. When the second valve body is installed on the first valve body, the limit surface continuously abuts against the guide surface, causing the step to slide, thereby making the third sealing ring continuously close to the ball and squeezing the second sealing ring, thereby improving the sealing effect of the third sealing ring and the second sealing ring.

[0048] It also includes a connecting seat 8, which is detachably mounted on the second valve body 2. The second valve body 2 is provided with a plurality of first mounting grooves 24 and second mounting grooves 25. The first mounting grooves 24 are provided in a convex structure and are used to be detachably connected to the first valve body 1 through first bolts. The connecting seat 8 is provided with a fixing block 81 that matches the first mounting grooves 24.

[0049] The second mounting groove 25 is used for being detachably connected to the connecting seat 8 via a second bolt.

[0050] like Figure 1 As shown, the first valve body 1 and the second valve body 2 are fixed by the first mounting groove 24;

[0051] The second valve body 2 and the connecting seat 8 are fixed to each other through the second mounting grooves 25 , wherein the first mounting grooves 24 and the second mounting grooves 25 are provided in multiple groups (not shown in the figure).

[0052] When the connecting seat 8 is installed on the second valve body 2, the fixing block 81 is firstly fixed to the second installation groove 25, and then the second valve body 2 and the connecting seat 8 are fixed by the second bolt to improve the stability during the installation process.

[0053] An extension arm 41 is detachably mounted on the upper end of the valve stem 4. The extension arm 41 is designed to be assembled according to usage conditions for installation of the actuator.

[0054] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. A tilt rod discharge ball valve, characterized by: The invention comprises a first valve body (1), a second valve body (2), a ball (3) and a valve stem (4); the first valve body (1) is provided with a mounting cavity (11) for mounting the ball (3); the second valve body (2) is detachably mounted on the first valve body (1) and is used to cover one side of the mounting cavity (11); the second valve body (2) is provided with a discharge port (21) for the ball (3) to extend out; The valve stem (4) is mounted on the upper end of the first valve body (1), the valve stem (4) comprises a first central axis, and the valve stem (4) is symmetrically arranged along the first central axis; The sphere (3) comprises a second central axis arranged in a vertical direction, the sphere (3) is symmetrically arranged along the second central axis, the first central axis and the second central axis intersect at the center of the sphere (3), and an oblique angle of 15° is formed between the first central axis and the second central axis; An installation structure (12) for flange installation is provided at one end of the first valve body (1) away from the second valve body (2).

2. The inclined rod discharge ball valve according to claim 1 is characterized in that: The first valve body (1) comprises a first end surface (5) arranged vertically, the second valve body (2) comprises a second end surface (6) arranged vertically, and the first central axis and the upper end of the first end surface (5) form an angle of 15°; The second central axis forms an angle of 15° with the lower end of the second end surface (6).

3. The inclined rod discharge ball valve according to claim 1 is characterized in that: The mounting structure (12) comprises a connecting groove and mounting holes, and the mounting holes are arranged in a plurality of groups and arranged in an array along the circumference of the connecting groove.

4. The inclined rod discharge ball valve according to claim 1 is characterized in that: A first sealing groove (13) is provided in the first valve body (1), and a first sealing ring (14) is provided in the first sealing groove (13); when the ball (3) is installed in the installation cavity (11), the outer side of the ball (3) is arranged in contact with the first sealing ring (14).

5. The inclined rod discharge ball valve according to claim 4 is characterized in that: A step (7) is provided on one side of the second valve body (2), and a first step surface (71) cooperating with the first valve body (1) and a second step surface (72) cooperating with the ball (3) are provided on the step (7); A second sealing ring (22) is arranged at the first step surface (71), and a third sealing ring (23) is arranged at the second step surface (72).

6. The inclined rod discharge ball valve according to claim 5 is characterized in that: The first valve body (1) is provided with a second sealing groove (15) with a square cross-section structure, the step (7) includes a limit block (73) with an L-shaped structure, the limit block (73) is respectively arranged to abut against the inner wall and the outer wall of the second sealing groove (15), and the second sealing ring (22) is installed between the limit block (73) and the second sealing groove (15).

7. The inclined rod discharge ball valve according to claim 6 is characterized in that: A guide surface (151) is obliquely arranged in the second sealing groove (15), and a limit surface (731) matching with the guide surface (151) is arranged on the limit block (73).

8. The tilt rod discharge ball valve according to claim 5, characterized in that: The step (7) is provided with an arc surface (74) that matches the sphere (3), and the upper end of the arc surface (74) is provided with a third sealing groove (75) for installing a third sealing ring (23).

9. A tilt-stem discharge ball valve according to any one of claims 1 to 8, characterized in that: The valve body (2) further comprises a connecting seat (8), wherein the connecting seat (8) is detachably mounted on the second valve body (2), wherein the second valve body (2) is provided with a plurality of groups of first mounting grooves (24) and second mounting grooves (25), wherein the first mounting grooves (24) are provided in a convex structure and are used to be detachably connected to the first valve body (1) via a first bolt, and wherein the connecting seat (8) is provided with a fixing block (81) that cooperates with the first mounting grooves (24); The second mounting groove (25) is used for being detachably connected to the connecting seat (8) via a second bolt.

10. The tilt-rod discharge ball valve according to any one of claims 1 to 8, characterized in that: An extension arm (41) is detachably mounted on the upper end of the valve stem (4).

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