A regulating valve convenient for quick maintenance

Abstract

A regulating valve convenient for quick maintenance, comprising a valve body, a valve stem, a quick snap-on valve cover A (3), a quick snap-on valve cover B, a valve stem sliding sleeve, a gate plug, a stop valve, an inner and outer arc surface sealing sleeve, an outer sealing ring, an inner sealing ring, a retaining ring, snap bolts, and a double-watt sleeve; characterized in that: a quick snap-on valve cover A and a quick snap-on valve cover B are installed at the upper end of the valve body, and the quick snap-on valve cover A and the quick snap-on valve cover B are two semi-circular covers, which can be quickly assembled with the valve stem sliding sleeve, the valve stem, the valve body, and the snap bolts, achieving the purpose of facilitating the quick maintenance of the regulating valve; the beneficial effects are: convenient and quick assembly, quick disassembly, quick maintenance; improving the use efficiency of the regulating valve; reducing the maintenance cost; increasing the service life; and bringing inestimable beneficial effects to the production enterprises and users of the regulating valve.

Description

Technical Field

[0001] The present invention relates to a valve, and more particularly to a regulating valve that is convenient for quick maintenance. Background Art

[0002] A regulating valve is a control device used to regulate the flow rate and pressure of various medium fluids and is widely used in industrial and agricultural production; however, due to the corrosiveness of the medium used and the pressure, it is prone to failure after being used for a period of time and often requires repair and maintenance. Moreover, due to its complex structure, its disassembly, assembly, and repair are very inconvenient, the production cost is high, which seriously affects the production efficiency of all walks of life, and the maintenance cost is very high. Therefore, researching a regulating valve that is convenient for quick maintenance is an urgent and meaningful task. Summary of the Invention

[0003] The present invention provides a regulating valve that is convenient for quick maintenance, which can solve the problems mentioned in the background art.

[0004] The technical solution for the present invention to solve its technical problems is: a regulating valve that is convenient for quick maintenance, including a valve body, a valve stem, a quick snap-on valve cover A, a quick snap-on valve cover B, a valve stem sliding sleeve, a gate plug, a stop valve, an inner and outer arc surface sealing sleeve, an outer sealing ring, an inner sealing ring, a retaining ring, a snap bolt, and a double-watt nut sleeve; characterized in that: the upper end of the valve body is assembled with a quick snap-on valve cover A and a quick snap-on valve cover B, and the quick snap-on valve cover A and the quick snap-on valve cover B are two semi-cylindrical covers that can be quickly assembled with the valve stem sliding sleeve, the valve stem, the valve body, and the snap bolt to achieve the purpose of facilitating the quick maintenance of the regulating valve.

[0005] The valve stem sliding sleeve includes a sliding hole, an upper limit ring, a hexagonal body, and a lower limit ring; the upper limit ring is arranged on the upper surface of the hexagonal body, and the lower limit ring is arranged on the lower surface; a sliding hole is provided at the center of the upper limit ring, the hexagonal body, and the lower limit ring;

[0006] The function of the valve stem sliding sleeve is to be locked with the multi-sided snap of the quick snap-on valve cover B and the quick snap-on valve cover A to fix itself and lubricate the movement of the valve stem.

[0007] The quick snap-on valve cover A is composed of a semi-cylindrical body and a semi-cylindrical cover; the radius of the semi-cylindrical body is smaller than the radius of the semi-cylindrical cover; the semi-cylindrical body is on the upper side and the semi-cylindrical cover is on the lower side; the semi-cylindrical body and the semi-cylindrical cover share the same vertical plane;

[0008] The semi-cylindrical body is provided with an upper tightening counterbore, an upper tightening screw hole, and a multi-sided snap; the multi-sided snap is arranged at the upper end of the semi-cylindrical body, and the upper tightening counterbore and the upper tightening screw hole are arranged on both sides of the multi-sided snap;

[0009] The semi-circular cover body is provided with a lower tightening sunken through-hole, a lower tightening screw hole, a positioning notch, and a clamping groove; the clamping groove is arranged at the lower part of the arc edge of the semi-circular cover body, and positioning notches are arranged downward at both port sides of the clamping groove; at both port sides of the clamping groove and outward, a lower tightening sunken through-hole is arranged at one side and a lower tightening screw hole is arranged at the other side.

[0010] The quick snap-on valve cover B has the same structure, material, and features as the quick snap-on valve cover A, and they are used in reverse to fit together to form a complete circle; it plays the role of quickly assembling and disassembling the present invention.

[0011] The inner and outer arc surface sealing sleeve includes a circular sleeve body, an inner arc surface, an outer arc surface, an outer seal groove, an inner seal groove, and a middle hole; a middle hole is arranged at the center of the circular sleeve body, and a sunken inner seal groove is arranged on the inner arc surface of the middle hole; a sunken outer seal groove is arranged on the outer arc surface of the circular sleeve body; the inner seal groove is used for installing an inner sealing ring and a valve stem to achieve sliding sealing; the outer seal groove is used for installing an outer sealing ring and a valve body to achieve static sealing.

[0012] The inner and outer arc surface sealing sleeve is assembled in the upper through-sunken hole of the valve body of the valve body; its function is to achieve sliding sealing for the valve stem and static sealing for the valve body; and it is convenient for quick assembly and disassembly, has a simple structure, is easy to manufacture, has stable performance, and a long service life.

[0013] The valve stem includes a gate plug ball joint, a gate plug link, a sealing slide bar, a connecting multi-sided body, and a connecting cylinder; its features are: a connecting multi-sided body is arranged below the connecting cylinder; a sealing slide bar is arranged below the connecting multi-sided body; a gate plug link is arranged below the sealing slide bar; a gate plug ball joint is arranged below the gate plug link; the radius of the gate plug ball joint is the same as the radius of the sealing slide bar, and the radius of the gate plug link is smaller than the radius of the sealing slide bar.

[0014] The double-watt screw sleeve is a kit composed of a double-watt screw sleeve A and a double-watt screw sleeve B; the double-watt screw sleeve A and the double-watt screw sleeve B have the same structure and material; both have a semi-cylindrical groove, a half-spherical groove, a semi-circular screw, and a semi-circular opposite side; when the double-watt screw sleeve A and the double-watt screw sleeve B are combined, the two semi-cylindrical grooves form a cylindrical hole, the two half-spherical grooves form a hemispherical hole, and the two semi-circular opposite sides form a hexagonal opposite side.

[0015] The valve body consists of an upper through-hole of the valve body, a left passage of the valve body, a right passage of the valve body, a right through flange, a left through flange, a plug valve, and a plug valve orifice. A plug valve and a plug valve orifice are arranged among the three-way junctions of the upper through-hole of the valve body, the left passage of the valve body, and the right passage of the valve body. A left through flange is arranged at the port of the left passage of the valve body. A right through flange is arranged at the port of the right passage of the valve body. It is characterized in that: the upper through-hole of the valve body includes a counterbore of the upper through-hole of the valve body, a through-hole of the upper through-hole of the valve body, an annular convex edge, a positioning convex block, a retaining ring groove, and an upper through-step. The through-hole of the upper through-hole of the valve body is communicated with the counterbore of the upper through-hole of the valve body. An upper through-step is arranged between the through-hole of the upper through-hole of the valve body and the counterbore of the upper through-hole of the valve body. A retaining ring groove is arranged on the hole wall of the counterbore of the upper through-hole of the valve body. The counterbore of the upper through-hole of the valve body and the upper through-step are used for installing inner and outer arc surface sealing sleeves. The function of the retaining ring groove is to lock the inner and outer arc surface sealing sleeves in the middle and lower parts of the counterbore of the upper through-hole of the valve body to prevent them from moving up and down. An annular convex edge flying outwards is arranged at the upper end of the upper through-hole of the valve body. A downward protruding positioning convex block is arranged below the annular convex edge. The function of the annular convex edge is to cooperate with the clamping grooves of the quick-clamping valve cover B and the quick-clamping valve cover A to lock each other, achieving quick loading and unloading. The function of the positioning convex block is to lock the connection positions of the quick-clamping valve cover B and the quick-clamping valve cover A with the valve body and prevent them from rotating with the valve body.

[0016] The beneficial effects of the present invention are as follows: convenient and rapid assembly, quick disassembly, and quick maintenance; improving the use efficiency of the regulating valve; reducing the maintenance cost; increasing the service life; and bringing inestimable beneficial effects to the production enterprises and users of the regulating valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view of the present invention.

[0018] Figure 2 is a structural sectional view of the present invention.

[0019] Figure 3 is a side view of the present invention.

[0020] Figure 4 is Figure 3 the A-A sectional view of

[0021] Figure 5 is Figure 3 the B-B sectional view of

[0022] Figure 6 is Figure 3 the C-C sectional view of

[0023] Figure 7 is Figure 3 the D-D sectional view of

[0024] Figure 8 is a front view of the present invention.

[0025] Figure 9 is Figure 8 the E-E sectional view.

[0026] Figure 10 is the structural diagram of the valve stem sliding sleeve.

[0027] Figure 11 is the structural diagram of the quick snap-on valve cover A and the quick snap-on valve cover B.

[0028] Figure 12 is the structural diagram of the inner and outer arc surface sealing sleeve.

[0029] Figure 13 is the structural diagram of the valve body.

[0030] Figure 14 is the structural diagram of the valve stem.

[0031] Figure 15 is the structural diagram of the double-watt spiral sleeve.

[0032] In the figure, 1. Valve body; 101. Upper passage of the valve body; 1011. Annular convex edge; 1012. Counterbore of the upper passage of the valve body; 1013. Through hole of the upper passage of the valve body; 1014. Retaining ring groove; 1015. Step of the upper passage; 102. Left passage of the valve body; 103. Positioning convex block; 104. Right passage of the valve body; 105. Right flange; 106. Left flange; 107. Plug port; 2. Valve stem; 201. Gate plug ball joint; 202. Gate plug connecting rod; 203. Sealing slide bar; 204. Connecting polygon; 205. Connecting cylinder; 3. Quick snap-on valve cover A; 31. Semi-cylindrical body; 32. Semi-circular cover body; 33. Upper tightening counterbore; 34. Lower tightening counterbore; 35. Upper tightening screw hole; 36. Lower tightening screw hole; 37. Positioning notch; 38. Card slot; 39. Multilateral buckle; 30. Vertical plane; 4. Quick snap-on valve cover B; 5. Valve stem sliding sleeve; 51. Slide hole; 52. Upper limit ring; 53. Hexagon body; 54. Lower limit ring; 6. Gate plug; 7. Plug valve; 8. Inner and outer arc surface sealing sleeve; 81. Circular sleeve body; 82. Inner arc surface; 83. Outer arc surface; 84. Outer seal groove; 85. Inner seal groove; 86. Middle hole; 11. Outer sealing ring; 12. Inner sealing ring; 13. Retaining ring; 15. Clamping bolt; 17. Double-watt spiral sleeve; 171. Double-watt spiral sleeve A; 172. Double-watt spiral sleeve B; 1701. Semi-cylindrical groove; 1702. Half hemisphere groove; 1703. Semi-circular screw; 1704. Semi-circular opposite side. Specific embodiments

[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0034] Embodiment 1:

[0035] In Figure 1 , Figure 2 ,Figure 3 Among them, a regulating valve convenient for quick maintenance includes a valve body 1, a valve stem 2, a quick snap-on valve cover A 3, a quick snap-on valve cover B 4, a valve stem sliding sleeve 5, a gate plug 6, a stop valve 7, an inner and outer arc surface sealing sleeve 8, an outer sealing ring 11, an inner sealing ring 12, a retaining ring 13, a snap bolt 15, and a double-watt screw sleeve 17; characterized in that: a quick snap-on valve cover A 3 and a quick snap-on valve cover B 4 are assembled at the upper end of the valve body 1, and the quick snap-on valve cover A 3 and the quick snap-on valve cover B 4 are two semi-circular cover bodies, which can be quickly assembled with the valve stem sliding sleeve 5, the valve stem 2, the valve body 1, and the snap bolt 15 to achieve the purpose of facilitating the quick maintenance of the regulating valve.

[0036] In Figure 10 , Figure 2 , Figure 4 , Figure 5 , Figure 9 Among them, the valve stem sliding sleeve 5 includes a sliding hole 51, an upper limit ring 52, a hexagonal body 53, and a lower limit ring 54; the upper limit ring 52 is arranged on the upper surface of the hexagonal body 53, and the lower limit ring 54 is arranged on the lower surface; a sliding hole 51 is provided at the centers of the upper limit ring 52, the hexagonal body 53, and the lower limit ring 54;

[0037] The function of the valve stem sliding sleeve 5 is to cooperate with the multi-sided buckle 39 of the quick snap-on valve cover B 4 and the quick snap-on valve cover A 3 to lock each other, playing a role in fixing itself and lubricating the movement of the valve stem 2.

[0038] The material of the valve stem sliding sleeve 5 is copper.

[0039] In Figure 11 , Figure 2 ,, Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 9 Among them, the quick snap-on valve cover A 3 is composed of a semi-cylindrical body 31 and a semi-circular cover body 32; the radius of the semi-cylindrical body 31 is smaller than the radius of the semi-circular cover body 32; the semi-cylindrical body 31 is on the upper side and the semi-circular cover body 32 is on the lower side; the semi-cylindrical body 31 and the semi-circular cover body 32 share the same vertical plane 30;

[0040] The semi-cylindrical body 31 is provided with an upper tightening counterbore 33, an upper tightening screw hole 35, and a multi-sided buckle 39; the multi-sided buckle 39 is arranged at the upper end of the semi-cylindrical body 31, and the upper tightening counterbore 33 and the upper tightening screw hole 35 are arranged on the wall of the multi-sided buckle 39;

[0041] The semi-circular cover 32 is provided with a lower tightening counterbore 34, a lower tightening screw hole 36, a positioning notch 37, and a clamping groove 38; the clamping groove 38 is arranged at the lower part of the arc edge of the semi-circular cover 32, and positioning notches 37 are provided downward at both port sides of the clamping groove 38; at both port sides of the clamping groove 38 facing outward, a lower tightening counterbore 34 is provided on one side and a lower tightening screw hole 36 is provided on the other side.

[0042] In Figure 11 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 9 Among them, the quick snap-on valve cover B4 has the same structure, material, and features as the quick snap-on valve cover A3, and they are reversely matched with each other to form a complete circle for use; it plays the role of quickly assembling and disassembling the present invention.

[0043] In Figure 12 , Figure 2 , Figure 4 , Figure 5 , Figure 9 Among them, the inner and outer arc surface sealing sleeve 8 includes a circular sleeve body 81, an inner arc surface 82, an outer arc surface 83, an outer seal groove 84, an inner seal groove 85, and a middle hole 86; a middle hole 86 is provided at the center of the circular sleeve body 81, and a recessed inner seal groove 85 is provided on the inner arc surface 82 of the middle hole 86; a recessed outer seal groove 84 is provided on the outer arc surface 83 of the circular sleeve body 81; the inner seal groove 85 is used for installing an inner sealing ring 12 to achieve sliding sealing with the valve stem 2; the outer seal groove 84 is used for installing an outer sealing ring 11 to achieve static sealing with the valve body 1.

[0044] The inner and outer arc surface sealing sleeve 8 is assembled in the upper through counterbore 1012 of the valve body of the valve body 1; its function is to achieve sliding sealing for the valve stem 2 and static sealing for the valve body; and it is convenient for quick assembly and disassembly, has a simple structure, is easy to manufacture, has stable performance, and a long service life.

[0045] In Figure 13 , Figure 2 , Figure 4 , Figure 6 , Figure 9In it, the valve body 1 is composed of an upper through-hole 101 of the valve body, a left passage 102 of the valve body, a right passage 104 of the valve body, a right through flange 105, a left through flange 106, a plug valve 7, and a plug valve port 107. A plug valve 7 and a plug valve port 107 are arranged among the three-way connections of the upper through-hole 101 of the valve body, the left passage 102 of the valve body, and the right passage 104 of the valve body; a left through flange 106 is arranged at the port of the left passage 102 of the valve body; a right through flange 105 is arranged at the port of the right passage 104 of the valve body; characterized in that: the upper through-hole 101 of the valve body includes a counterbore 1012 of the upper through-hole of the valve body, a through-hole 1013 of the upper through-hole of the valve body, an annular convex edge 1011, a positioning convex block 103, a snap ring groove 1014, and an upper through-step 1015; the through-hole 1013 of the upper through-hole of the valve body is communicated with the counterbore 1012 of the upper through-hole of the valve body, and an upper through-step 1015 is arranged between the through-hole 1013 of the upper through-hole of the valve body and the counterbore 1012 of the upper through-hole of the valve body. A snap ring groove 1014 is arranged on the hole wall of the counterbore 1012 of the upper through-hole of the valve body; the counterbore 1012 of the upper through-hole of the valve body and the upper through-step 1015 are used for installing inner and outer arc surface sealing sleeves 8, and the function of the snap ring groove 1014 is to lock the inner and outer arc surface sealing sleeves 8 in the middle and lower parts of the counterbore 1012 of the upper through-hole of the valve body to prevent it from moving up and down;

[0046] An outwardly flying annular convex edge 1011 is arranged at the upper end of the upper through-hole 101 of the valve body, and a downwardly protruding positioning convex block 103 is arranged below the annular convex edge 1011; the function of the annular convex edge 1011 is to cooperate with the clamping grooves 38 of the quick-clamping valve cover B4 and the quick-clamping valve cover A3 to lock with each other, achieving quick loading and unloading; the function of the positioning convex block 103 is to lock the connection positions of the quick-clamping valve cover B4 and the quick-clamping valve cover A3 with the valve body 1 and prevent them from rotating with the valve body 1.

[0047] In Figure 14 In it, the valve stem 2 includes a gate plug ball joint 201, a gate plug connecting rod 202, a sealing slide rod 203, a connecting polygon 204, and a connecting cylinder 205; characterized in that: a connecting polygon 204 is arranged below the connecting cylinder 205; a sealing slide rod 203 is arranged below the connecting polygon 204; a gate plug connecting rod 202 is arranged below the sealing slide rod 203; a gate plug ball joint 201 is arranged below the gate plug connecting rod 202; the sealing slide rod 203 is precision ground and polished by a grinding machine, and the surface roughness is Ra 0.4 - 1.6; the radius of the gate plug ball joint 201 is the same as the radius of the sealing slide rod 203, and the radius of the gate plug connecting rod 202 is smaller than the radius of the sealing slide rod 203.

[0048] In Figure 15Among them, the double-watt spiral sleeve 17 is a kit composed of a double-watt spiral sleeve A 171 and a double-watt spiral sleeve B 172; the double-watt spiral sleeve A 171 and the double-watt spiral sleeve B 172 have the same structure and the same material; both have a semi-cylindrical groove 1701, a half-spherical groove 1702, a semi-circular screw 1703, and a semi-circular opposite side 1704; when the double-watt spiral sleeve A 171 and the double-watt spiral sleeve B 172 are combined, the two semi-cylindrical grooves 1701 form a cylindrical hole, the two half-spherical grooves 1702 form a hemispherical hole, and the two semi-circular opposite sides 1704 form a hexagonal opposite side.

[0049] Embodiment 2:

[0050] In Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 Among them, a regulating valve convenient for quick maintenance includes a valve body 1, a valve stem 2, a quick snap-on valve cover A 3, a quick snap-on valve cover B 4, a valve stem sliding sleeve 5, a plug 6, a stop valve 7, an inner and outer arc surface sealing sleeve 8, an outer sealing ring 11, an inner sealing ring 12, a retaining ring 13, a snap bolt 15, and a double-watt spiral sleeve 17.

[0051] In Figure 13 Among them, the valve body 1 is an inverted T-shaped three-way, including a vertical upper through-hole of the valve body 101, a left channel of the valve body 102, a positioning convex block 103, a right channel of the valve body 104, a right through flange 105, a left through flange 106, and a plug port 107; a circular convex edge 1011 is provided at the top of the upper through-hole of the valve body 101, and the circular convex edge 1011 is used for mating snap connection with the quick snap-on valve cover A 3 and the quick snap-on valve cover B 4.

[0052] In Figure 14 Among them, the valve stem 2 includes a plug ball joint 201, a plug connecting rod 202, a sealing sliding rod 203, a connecting polygon 204, and a connecting cylinder 205; characterized in that: the connecting polygon 204 is arranged below the connecting cylinder 205; the sealing sliding rod 203 is arranged below the connecting polygon 204; the plug connecting rod 202 is arranged below the sealing sliding rod 203; the plug ball joint 201 is arranged below the plug connecting rod 202; the sealing sliding rod 203 is precision ground and polished by a grinding machine, and the surface roughness is Ra 0.4 - 1.6; the radius of the plug ball joint 201 is the same as the radius of the sealing sliding rod 203, and the radius of the plug connecting rod 202 is smaller than the radius of the sealing sliding rod 203.

[0053] In Figure 15In it, the double-watt spiral sleeve 17 is a kit composed of a double-watt spiral sleeve A 171 and a double-watt spiral sleeve B 172; the double-watt spiral sleeve A 171 and the double-watt spiral sleeve B 172 have the same structure and the same material; both have a semi-cylindrical groove 1701, a one-half hemispherical groove 1702, a semi-circular screw 1703, and a semi-circular opposite side 1704; when the double-watt spiral sleeve A 171 and the double-watt spiral sleeve B 172 are combined, the two semi-cylindrical grooves 1701 form a cylindrical hole, the two one-half hemispherical grooves 1702 form a hemispherical hole, and the two semi-circular opposite sides 1704 form a hexagonal opposite side.

[0054] In Figure 2 , Figure 4 , Figure 9 In it, the gate plug 6 is assembled in the plug port 107 of the plug valve 7 where the upper through hole 101, the left channel 102 of the valve body, and the right channel 104 of the valve body meet; by moving the gate plug 6 up and down, the conduction amount between the left channel 102 and the right channel 104 of the valve body is adjusted.

[0055] The gate plug 6 is a hemisphere, and a counterbore and a screw port for movably connecting with the valve stem 2 are provided in the middle of the plane of the hemisphere;

[0056] The plug valve 7 is provided with a circular plug port 107 at the center;

[0057] When the plug valve 7 and the gate plug 6 are in a mating state, the left channel 102 and the right channel 104 of the valve body 1 are sealed and closed;

[0058] Furthermore, a sealing member can be provided at the plug port 107 to achieve long-term sealing performance;

[0059] The valve stem 2 is assembled in the gate plug 6, and the double-watt spiral sleeve 17 locks the valve stem 2 on the gate plug 6. The middle of the valve stem 2 is slidably and sealingly connected to the inner and outer arc surface sealing sleeve 8, the outer sealing ring 11, and the inner sealing ring 12; the upper part of the valve stem 2 is connected to the valve stem sliding sleeve 5; the upper part of the valve stem 2 is used for connecting with the control power.

[0060] When the valve stem 2 is driven by an external control power to move upward, the valve stem 2 drives the gate plug 6 to move upward, so that the distance between the gate plug 6 and the plug valve 7 is increased, thereby increasing the passage of the plug port 107. By adjusting the up and down movement of the valve stem 2, the conduction, closing, and conduction amount between the left channel 102 and the right channel 104 of the valve body can be adjusted.

[0061] In Figure 2 , Figure 11Among them, the quick snap - on valve cover A3 and the quick snap - on valve cover B4 are semi - circular cover bodies with the same structure. Its structure includes a semi - circular cover body 32 with a larger diameter, a semi - circular cylinder 31 with a smaller diameter, an upper tightening counter - sunk through - hole 33, a lower tightening counter - sunk through - hole 34, an upper tightening screw hole 35, a lower tightening screw hole 36, a positioning notch 37, a clamping groove 38, a multi - sided snap 39, and a vertical plane 30; One end of the outer body of the multi - sided snap 39 of the semi - circular cylinder 31 is provided with an upper tightening counter - sunk through - hole 33, and one end is provided with an upper tightening screw hole 35; One end of the outer body of the clamping groove 38 of the semi - circular cover body 32 is provided with a lower tightening counter - sunk through - hole 34, and one end is provided with a lower tightening screw hole 36;

[0062] The lower arc edges of the quick snap - on valve cover A3 and the quick snap - on valve cover B4 are both provided with clamping grooves 38, and the upper ports are both provided with multi - sided snaps 39;

[0063] The quick snap - on valve cover A3 and the quick snap - on valve cover B4 can be detachably connected; When the quick snap - on valve cover A3 and the quick snap - on valve cover B4 are assembled and tightened, the clamping groove 38 cooperates to lock the annular convex edge 1011 of the valve body 1; The multi - sided snap 39 is used to lock the valve stem sleeve 5 and limit the rotation between the quick snap - on valve cover A3, the quick snap - on valve cover B4 and the valve stem sleeve 5; Both ends of the clamping groove 38 are provided with positioning notches 37, and the positioning notches 37 are used to cooperate with the positioning protrusions 103 under the annular convex edge 1011 to limit the rotation between the quick snap - on valve cover A3, the quick snap - on valve cover B4 and the valve body 1.

[0064] The function of the valve stem sleeve 5 is to cooperate with the multi - sided snaps 39 of the quick snap - on valve cover B4 and the quick snap - on valve cover A3 to lock each other, play a role in fixing itself, and lubricate the movement of the valve stem 2;

[0065] In Figure 2 、 Figure 4 、 Figure 9 、 Figure 10Among them, the valve stem sliding sleeve 5 includes a sliding hole 51, an upper limit ring 52, a hexagonal body 53, and a lower limit ring 54; the hexagonal body 53 is used to cooperate with the quick snap-on valve cover A3 and the quick snap-on valve cover B4 for positioning, and the roller valve stem 2 moves up and down in series; the upper limit ring 52 and the lower limit ring 54 are used to cooperate with the multi-sided buckles 39 of the quick snap-on valve cover A3 and the quick snap-on valve cover B4, and the function is to prevent the valve stem 2 from rubbing against the quick snap-on valve cover A3 and the quick snap-on valve cover B4; the two multi-sided buckles 39 are combined into an inner hexagonal shape; that is, during the connection process of the quick snap-on valve cover A3, the quick snap-on valve cover B4 and the valve body 1, the valve stem sliding sleeve 5 is placed in one of the multi-sided buckles 39 at the same time. When the quick snap-on valve cover A3, the quick snap-on valve cover B4 and the valve body 1 are all quickly connected, the valve stem sliding sleeve 5 is clamped therein; the upper limit ring 52 and the lower limit ring 54 make the valve stem sliding sleeve 5 combined with the quick snap-on valve cover A3, the quick snap-on valve cover B4, the valve body 1 and the valve stem 2 as a whole through the cooperation of the hexagonal body 53 and the two multi-sided buckles 39, and the body will not fall off, and the valve stem 2 can move freely.

Claims

1. A regulating valve convenient for quick maintenance, comprising a valve body (1), a valve stem (2), a quick snap-on valve cover A (3), a quick snap-on valve cover B (4), a valve stem sliding sleeve (5), a gate plug (6), a stop valve (7), an inner and outer arc surface sealing sleeve (8), an outer sealing ring (11), an inner sealing ring (12), a retaining ring (13), snap bolts (15), and a double-watt screw sleeve (17), characterized in that: A quick - snap valve cover A (3) and a quick - snap valve cover B (4) are assembled at the upper end of the valve body (1); the valve stem (2) includes a plug ball joint (201), a plug connecting rod (202), a sealing slide rod (203), a connecting polyhedron (204), and a connecting cylinder (205). The connecting polyhedron (204) is arranged below the connecting cylinder (205), the plug ball joint (201) is arranged below the plug connecting rod (202), the radius of the plug ball joint (201) is the same as the radius of the sealing slide rod (203), and the radius of the plug connecting rod (202) is smaller than the radius of the sealing slide rod (203); the quick - snap valve cover A (3) and the quick - snap valve cover B (4) are two semi - circular covers and can be quickly assembled with the valve stem sleeve (5), the valve stem (2), the valve body (1), and the snap - fit bolt (15); the quick - snap valve cover A (3) is composed of a semi - circular cylinder (31) and a semi - circular cover (32); the radius of the semi - circular cylinder (31) is smaller than the radius of the semi - circular cover (32); the semi - circular cylinder (31) is on the top and the semi - circular cover (32) is on the bottom; the semi - circular cylinder (31) and the semi - circular cover (32) share the same vertical plane (30); the semi - circular cylinder (31) is provided with an upper tightening counterbore (33), an upper tightening screw hole (35), and a multi - sided buckle (39); the multi - sided buckle (39) is arranged at the upper end of the semi - circular cylinder (31), and the upper tightening counterbore (33) and the upper tightening screw hole (35) are arranged on the wall of the multi - sided buckle (39); the valve stem sleeve (5) includes a sliding hole (51), an upper limit ring (52), a hexagon (53), and a lower limit ring (54); the upper limit ring (52) is arranged on the upper surface of the hexagon (53), and the lower limit ring (54) is arranged on the lower surface of the hexagon (53); a sliding hole (51) is provided at the center of the upper limit ring (52), the hexagon (53), and the lower limit ring (54).

2. The regulating valve for facilitating quick maintenance according to claim 1, wherein: The valve body (1) is composed of an upper through passage of the valve body (101), a left passage of the valve body (102), a right passage of the valve body (104), a right through flange (105), a left through flange (106), a stop valve (7), and a stop valve port (107). A stop valve (7) and a stop valve port (107) are arranged among the three-way connections of the upper through passage of the valve body (101), the left passage of the valve body (102), and the right passage of the valve body (104). A left through flange (106) is provided at the port of the left passage of the valve body (102). A right through flange (105) is provided at the port of the right passage of the valve body (104). The upper through passage of the valve body (101) includes a counterbore of the upper through passage of the valve body (1012), a through hole of the upper through passage of the valve body (1013), an annular convex edge (1011), a positioning convex block (103), a snap ring groove (1014), and an upper through step (1015). The through hole of the upper through passage of the valve body (1013) is communicated with the counterbore of the upper through passage of the valve body (1012), and an upper through step (1015) is provided between the through hole of the upper through passage of the valve body (1013) and the counterbore of the upper through passage of the valve body (1012). A snap ring groove (1014) is provided on the hole wall of the counterbore of the upper through passage of the valve body (1012). An outward-flying annular convex edge (1011) is provided at the upper end of the upper through passage of the valve body (101), and a downward-projecting positioning convex block (103) is provided below the annular convex edge (1011).

3. The control valve for facilitating quick maintenance according to claim 1 or 2, wherein: The inner and outer arc surface sealing sleeve (8) is assembled in the counterbore of the upper through passage of the valve body (1012) of the valve body (1), and its function is to provide sliding sealing for the valve stem (2) and static sealing for the valve body.

4. The regulating valve for facilitating quick maintenance according to claim 1, wherein: The quick snap-on valve cover B (4) has the same structure, material, and features as the quick snap-on valve cover A (3), and they are used in reverse to fit together to form a complete circle, playing the role of quick combination for loading and unloading.

5. The regulating valve convenient for quick maintenance according to claim 1, wherein: The inner and outer arc surface sealing sleeve (8) includes a circular sleeve body (81), an inner arc surface (82), an outer arc surface (83), an outer seal groove (84), an inner seal groove (85), and a central hole (86). A central hole (86) is provided at the center of the circular sleeve body (81), and a recessed inner seal groove (85) is provided on the inner arc surface (82) of the central hole (86). A recessed outer seal groove (84) is provided on the outer arc surface (83) of the circular sleeve body (81).

6. The regulating valve for facilitating quick maintenance according to claim 1, wherein: The double-watt screw sleeve (17) is a kit composed of a double-watt screw sleeve A (171) and a double-watt screw sleeve B (172). The double-watt screw sleeve A (171) and the double-watt screw sleeve B (172) have the same structure and material, and both have a semi-cylindrical groove (1701), a half-spherical groove (1702), a semi-circular screw (1703), and a semi-circular opposite side (1704). When the double-watt screw sleeve A (171) and the double-watt screw sleeve B (172) are combined, the two semi-cylindrical grooves (1701) form a cylindrical hole, the two half-spherical grooves (1702) form a hemispherical hole, and the two semi-circular opposite sides (1704) form a hexagonal opposite side.

7. The regulating valve for facilitating quick maintenance according to claim 1, wherein: The sealing slide rod (203) is precision ground and polished by a grinding machine, and the surface roughness is Ra 0.4 - 1.

6.

8. A regulating valve convenient for quick maintenance according to claim 1, characterized in that: The semi-circular cover body (32) is provided with a lower tightening counterbore (34), a lower tightening screw hole (36), a positioning notch (37), and a clamping groove (38); the clamping groove (38) is arranged at the lower part of the arc edge of the semi-circular cover body (32), and positioning notches (37) are provided downward at both port sides of the clamping groove (38); at both port sides of the clamping groove (38) facing outward, a lower tightening counterbore (34) is provided on one side and a lower tightening screw hole (36) is provided on the other side.

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