Gate valve convenient to disassemble

Abstract

The utility model discloses a gate valve convenient to disassemble, and relates to the technical field of gate valves. The gate valve comprises a gate valve body, a valve rod used in cooperation with the gate valve body is arranged on the gate valve body, a hand wheel is detachably arranged at the top end of the valve rod, a connecting mechanism used in cooperation with the hand wheel is arranged at the upper end of the valve rod, and a covering mechanism used in cooperation with the hand wheel is arranged on the outer side of the gate valve body. The connecting mechanism comprises a rotating rod, an inserting rod and a lantern ring, a counter bore and a concave hole which are matched for use are formed in the upper end of the valve rod, the rotating rod is rotatably inserted in the concave hole, the top end of the rotating rod is fixedly sleeved with a butterfly-shaped plate, the bottom end of the butterfly-shaped plate is fixedly provided with a torsional spring, and the torsional spring is movably arranged on the outer side of the rotating rod in a sleeving mode; through the arrangement and use of the connecting mechanism, convenience is provided for convenient and fast connection and fixation of the valve rod and the hand wheel, and later dismounting is facilitated, so that convenient and fast dismounting and mounting of the hand wheel are realized, convenience is provided for operation and use of a user, and the phenomenon that the gate valve is mistakenly touched and adjusted can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valves, in particular to a gate valve which is easy to disassemble. Background Art

[0002] The gate valve is an opening and closing member, which is sealed by the contact between the valve seat and the gate. According to the difference of the gate, the gate valve can be divided into rigid gate valve and elastic gate valve.

[0003] The handwheel of the existing gate valve is inconvenient to disassemble and assemble, and the handwheel and the connection between the valve stem and the gate valve are exposed, which makes it easy to accidentally touch the gate valve and adjust it. Dust accumulates at the connection between the valve stem and the gate valve, affecting the adjustment.

[0004] In response to the above problems, the inventors proposed a gate valve that is easy to disassemble to solve the above problems. Utility Model Content

[0005] In order to solve the problems that the hand wheel of the existing gate valve is inconvenient to disassemble and assemble, and the connection between the hand wheel and the valve stem and the gate valve is in an exposed state; the purpose of the utility model is to provide a gate valve that is easy to disassemble.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions: a gate valve that is easy to disassemble, comprising a gate valve body, a valve stem for use with the gate valve body, a hand wheel detachably provided at the top end of the valve stem, a connecting mechanism for use with the hand wheel provided at the upper end of the valve stem, and a cover mechanism for use with the hand wheel provided on the outer side of the gate valve body;

[0007] The connecting mechanism includes a rotating rod, an insert rod and a collar, and the upper end of the valve stem is provided with a countersunk hole and a concave hole for use together. The rotating rod is rotatably inserted in the concave hole, and the top end of the rotating rod is fixedly sleeved with a butterfly plate, the bottom end of the butterfly plate is fixedly installed with a torsion spring, and the torsion spring is movably sleeved on the outside of the rotating rod, and the bottom end of the torsion spring is fixedly connected to the inner wall of the countersunk hole. A butterfly groove is provided through the middle of the handwheel, and the butterfly plate can slide through the butterfly groove. Two insert rods are provided, and the insert rods are fixedly installed on the bottom end of the handwheel, the collar is fixedly sleeved on the upper end of the valve stem, and symmetrically distributed sockets are provided on the collar, the handwheel can be slidably sleeved on the valve stem, and the insert rod can be slidably inserted in the socket, the outer diameter of the butterfly plate is the same as the inner diameter of the butterfly groove, and the outer diameter of the insert rod is the same as the inner diameter of the socket.

[0008] Preferably, the cover mechanism includes a bottom ring and a cylinder cover, the bottom ring is fixedly sleeved on the gate valve body, and the upper end of the bottom ring is fixedly installed with a symmetrically arranged arc plate, a T-shaped rod is slidably inserted on the arc plate, and a spring is fixedly connected to the T-shaped rod, a sliding hole is provided on the arc plate, and the T-shaped rod is slidably inserted in the sliding hole, the end of the spring is fixedly connected to the arc plate, and a side column is fixedly installed on one side of the T-shaped rod, and symmetrical side holes are provided on the cylinder cover, the bottom end of the cylinder cover can be fitted with the bottom ring, and the side column can be slidably inserted in the side hole, symmetrically distributed clamping plates are fixedly installed on the bottom ring, and the inner wall of the bottom end of the cylinder cover can contact the clamping plate, and a push hole connected to the side hole is provided on the cylinder cover, and the push hole is used in conjunction with the side column, and the inner diameter of the push hole is larger than the inner diameter of the side hole.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] 1. The connection mechanism provides convenience for the convenient connection and fixation between the valve stem and the handwheel, and is easy to dismantle later, thereby realizing the convenient disassembly and assembly of the handwheel, thereby providing convenience for the user's operation and effectively avoiding the phenomenon of accidentally touching the regulating gate valve;

[0011] 2. By setting up and using the covering mechanism, the upper end of the gate valve can be covered and protected, thereby preventing dust accumulation at the connection between the valve stem and the gate valve body that affects the adjustment, and further preventing the phenomenon of accidentally touching the regulating gate valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 This is a schematic structural diagram of the utility model.

[0014] Figure 2 This is a schematic diagram of the installation of the cover mechanism in the utility model.

[0015] Figure 3 For this utility model Figure 2 A magnified schematic diagram of the structure in the middle.

[0016] Figure 4 For this utility model Figure 2 A magnified schematic diagram of the structure at point B in the middle.

[0017] In the figure: 1. Gate valve body; 2. Valve stem; 21. Countersunk hole; 22. Concave hole; 3. Handwheel; 31. Butterfly groove; 4. Connecting mechanism; 41. Rotating rod; 42. Insert rod; 43. Ring; 44. Butterfly plate; 45. Torsion spring; 46. Insert hole; 5. Cover mechanism; 51. Bottom ring; 52. Cylinder cover; 53. Arc plate; 54. T-bar; 55. Spring; 56. Side column; 57. Side hole; 58. Clamping plate; 59. Sliding hole; 510. Push hole. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Example: Figure 1-4 As shown, the utility model provides a gate valve that is easy to disassemble, including a gate valve body 1, a valve stem 2 for use with the gate valve body 1, and a hand wheel 3 is detachably provided at the top end of the valve stem 2, a connecting mechanism 4 for use with the hand wheel 3 is provided at the upper end of the valve stem 2, and a covering mechanism 5 for use with the hand wheel 3 is provided on the outer side of the gate valve body 1;

[0020] The connecting mechanism 4 includes a rotating rod 41, an insert rod 42 and a collar 43, and the upper end of the valve stem 2 is provided with a countersunk hole 21 and a concave hole 22 for use. The rotating rod 41 is rotatably inserted in the concave hole 22, and the top of the rotating rod 41 is fixedly sleeved with a butterfly plate 44. The bottom end of the butterfly plate 44 is fixedly installed with a torsion spring 45, and the torsion spring 45 is movably sleeved on the outside of the rotating rod 41. The bottom end of the torsion spring 45 is fixedly connected to the inner wall of the countersunk hole 21. A butterfly groove 31 is opened through the middle of the handwheel 3, and the butterfly plate 44 can slide through the The butterfly groove 31 is passed through, and two plug rods 42 are provided, and the plug rods 42 are fixedly installed on the bottom end of the handwheel 3, and the ring 43 is fixedly sleeved on the upper end of the valve stem 2, and the ring 43 is penetrated by symmetrically distributed sockets 46, the handwheel 3 can be slidably sleeved on the valve stem 2, and the plug rod 42 can be slidably inserted in the socket 46, the outer diameter of the butterfly plate 44 is the same as the inner diameter of the butterfly groove 31, and the outer diameter of the plug rod 42 is the same as the inner diameter of the socket 46, thereby ensuring the connection stability of the handwheel 3 and the valve stem 2.

[0021] By adopting the above technical solution, when in use, the butterfly plate 44 is rotated, thereby driving the rotating rod 41 to rotate and twisting the torsion spring 45. When the butterfly plate 44 rotates ninety degrees, it stops rotating, and then the handwheel 3 is gradually put on the valve stem 2 and the butterfly plate 44 is inserted into the butterfly groove 31. Then the handwheel 3 is continued to be moved down, and when the insertion rod 42 is completely inserted into the corresponding insertion hole 46, the butterfly plate 44 is completely separated from the butterfly groove 31. At this time, the torsion spring 45 will drive the butterfly plate 44 to reverse and reset, so that the butterfly plate 44 can be misaligned with the butterfly groove 31 and the handwheel 3 is limited on the valve stem 2.

[0022] The cover mechanism 5 includes a bottom ring 51 and a cylinder cover 52. The bottom ring 51 is fixedly mounted on the gate valve body 1, and a symmetrically arranged arc plate 53 is fixedly installed on the upper end of the bottom ring 51. A T-shaped rod 54 is slidably inserted on the arc plate 53, and a spring 55 is fixedly connected to the T-shaped rod 54. A sliding hole 59 is opened on the arc plate 53, and the T-shaped rod 54 is slidably inserted in the sliding hole 59. The end of the spring 55 is fixedly connected to the arc plate 53, and a side column 56 is fixedly installed on one side of the T-shaped rod 54. The cylinder cover 52 has a symmetrically arranged side hole 59. 7. The bottom end of the barrel cover 52 can fit with the bottom ring 51, and the side column 56 can be slidably inserted in the side hole 57. The bottom ring 51 is fixedly mounted with symmetrically distributed clamping plates 58, and the inner wall of the bottom end of the barrel cover 52 can contact the clamping plates 58, thereby ensuring the clamping stability of the barrel cover 52 and the bottom ring 51. The barrel cover 52 is provided with a push hole 510 connected to the side hole 57, and the push hole 510 is used in conjunction with the side column 56. The inner diameter of the push hole 510 is larger than the inner diameter of the side hole 57, thereby providing a guarantee for the convenient pushing of the side column 56.

[0023] By adopting the above technical solution, when in use, when the gate valve needs to be adjusted, the two side columns 56 are pushed, which can drive the two T-shaped rods 54 to move toward each other and squeeze the corresponding springs 55, so that the side columns 56 can be gradually separated from the corresponding side holes 57. When the side columns 56 are completely separated from the corresponding side holes 57, the barrel cover 52 is pulled up, so that the barrel cover 52 can be separated from the bottom ring 51 and removed from the gate valve.

[0024] Working principle: When the gate valve needs to be adjusted, the two side columns 56 are pushed, which can drive the two T-shaped rods 54 to move toward each other and squeeze the corresponding springs 55, thereby gradually separating the side columns 56 from the corresponding side holes 57. When the side columns 56 are completely separated from the corresponding side holes 57, the barrel cover 52 is pulled up, thereby separating the barrel cover 52 from the bottom ring 51 and removing it from the gate valve;

[0025] Then, the butterfly plate 44 is rotated, thereby driving the rotating rod 41 to rotate and twisting the torsion spring 45. When the butterfly plate 44 rotates ninety degrees, it stops rotating. Then, the handwheel 3 is gradually put on the valve stem 2 and the butterfly plate 44 is stuck in the butterfly groove 31. Then, the handwheel 3 is continued to be moved down, and when the insertion rod 42 is fully stuck in the corresponding insertion hole 46, the butterfly plate 44 is completely separated from the butterfly groove 31. At this time, the torsion spring 45 will drive the butterfly plate 44 to reverse and reset, thereby enabling the butterfly plate 44 to be misaligned with the butterfly groove 31 and limit the handwheel 3 on the valve stem 2. Then, adjust the gate valve and after the adjustment is completed, follow the above steps in reverse to remove the handwheel 3 and reset the cylinder cover 52.

[0026] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A gate valve that is easy to disassemble, comprising a gate valve body (1), characterized in that: The gate valve body (1) is provided with a valve stem (2) for use therewith, and a hand wheel (3) is detachably provided at the top end of the valve stem (2), a connecting mechanism (4) for use therewith and the hand wheel (3) is provided at the upper end of the valve stem (2), and a cover mechanism (5) for use therewith and the hand wheel (3) is provided on the outer side of the gate valve body (1); The connecting mechanism (4) includes a rotating rod (41), an insert rod (42) and a collar (43), and the upper end of the valve stem (2) is provided with a countersunk hole (21) and a concave hole (22) for use together, the rotating rod (41) is rotatably inserted into the concave hole (22), and the top end of the rotating rod (41) is fixedly sleeved with a butterfly plate (44), the bottom end of the butterfly plate (44) is fixedly installed with a torsion spring (45), and the torsion spring (45) is movably sleeved on the outside of the rotating rod (41), and the bottom end of the torsion spring (45) is in contact with the inner wall of the countersunk hole (21). The hand wheel (3) is fixedly connected, a butterfly groove (31) is provided through the middle of the hand wheel (3), and the butterfly plate (44) can slide through the butterfly groove (31), two plug rods (42) are provided, and the plug rods (42) are fixedly installed at the bottom end of the hand wheel (3), the collar (43) is fixedly sleeved on the upper end of the valve stem (2), and symmetrically distributed sockets (46) are provided through the collar (43), the hand wheel (3) can be slidably sleeved on the valve stem (2), and the plug rod (42) can be slidably inserted in the socket (46).

2. A gate valve that is easy to disassemble as claimed in claim 1, characterized in that: The cover mechanism (5) includes a bottom ring (51) and a barrel cover (52), wherein the bottom ring (51) is fixedly sleeved on the gate valve body (1), and a symmetrically arranged arc plate (53) is fixedly installed on the upper end of the bottom ring (51), a T-shaped rod (54) is slidably inserted on the arc plate (53), and a spring (55) is fixedly connected to the T-shaped rod (54), the end of the spring (55) is fixedly connected to the arc plate (53), and a side column (56) is fixedly installed on one side of the T-shaped rod (54), and a symmetrically arranged side hole (57) is opened on the barrel cover (52), the bottom end of the barrel cover (52) can be fitted with the bottom ring (51), and the side column (56) can be slidably inserted in the side hole (57).

3. A gate valve that is easy to disassemble as claimed in claim 2, characterized in that: Symmetrically distributed clamping plates (58) are fixedly mounted on the bottom ring (51), and the inner wall of the bottom end of the barrel cover (52) can contact the clamping plates (58).

4. A gate valve that is easy to disassemble as claimed in claim 2, characterized in that: A sliding hole (59) is provided on the arc-shaped plate (53), and the T-shaped rod (54) is slidably inserted into the sliding hole (59).

5. The gate valve that is easy to disassemble as claimed in claim 2, characterized in that: The barrel cover (52) is provided with a push hole (510) that is in communication with the side hole (57), and the push hole (510) is used in conjunction with the side column (56).

6. The gate valve that is easy to disassemble as claimed in claim 5, characterized in that: The inner diameter of the push hole (510) is greater than the inner diameter of the side hole (57).

7. The gate valve that is easy to disassemble as claimed in claim 1, characterized in that: The outer diameter of the butterfly plate (44) is the same as the inner diameter of the butterfly groove (31).

8. The gate valve that is easy to disassemble as claimed in claim 1, characterized in that: The outer diameter of the insertion rod (42) is the same as the inner diameter of the insertion hole (46).

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