Ball valve handle capable of being locked

Abstract

The utility model discloses a lockable ball valve handle which comprises a handle pipe, a handle head is fixedly arranged at one end of the handle pipe, and a square lock catch hole used for being connected with a valve rod of a ball valve is formed in the middle of the handle head. A round lock hole used for additionally installing a lock is further formed in the part, close to the handle tube, of the handle head; the other end of the handle pipe is sleeved with a handle sleeve, and a limiting mechanism used for preventing the handle sleeve from falling off is arranged on the handle pipe. The handle head is fixedly connected with the handle tube through two inner hexagon screws; and a plurality of anti-skid bosses are uniformly arranged on the peripheral wall of the handle sleeve at intervals. According to the utility model, the locking function of the handle can be realized, the handle is prevented from being accidentally touched or randomly wrenched, the normal opening and closing state of the ball valve is ensured, and the limiting head of the limiting mechanism in the handle tube is matched with the limiting hole in the handle sleeve, so that the safety of the ball valve is ensured. The condition that the handle sleeve rotates relative to the handle tube or is separated from the handle tube in the using process can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valve handles, in particular to a lockable ball valve handle. Background Art

[0002] A ball valve is a valve whose opening and closing member (a ball) is driven by a valve stem and rotates about its axis. It can be used to regulate and control fluids. Some existing ball valves have a separate on / off handle from the valve stem. During use, the valve is opened and closed by sliding the handle provided by the valve manufacturer onto the square valve stem and rotating the handle 90°. However, current ball valve handles cannot be effectively locked in place after use, making them prone to accidental contact or unauthorized manipulation, affecting the valve's proper opening and closing state. Furthermore, existing ball valve handles often have an anti-slip sleeve at the rear end to prevent the operator from gripping the handle. However, on large ball valves, the handle is subject to significant forces, which can easily cause the anti-slip sleeve to loosen and even fall off the handle. For example, the ball valve handle disclosed in CN201620306794.9 features a retaining groove and a recess to prevent the anti-slip sleeve from falling off and rotating. However, if the anti-slip cover is damaged after long-term use, the anti-slip cover installed through the card slot has the problem of being difficult to disassemble and replace. Utility Model Content

[0003] The purpose of the utility model is to provide a lockable ball valve handle to solve the technical problems mentioned in the above background technology.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] The utility model discloses a lockable ball valve handle, comprising a handle tube, a handle head fixedly provided at one end of the handle tube, a square locking hole for connecting with the valve stem of the ball valve is provided in the middle of the handle head; a circular locking hole for installing a lock is also provided at a position of the handle head close to the handle tube; a handle sleeve is provided at the other end of the handle tube, and a limiting mechanism is provided on the handle tube for preventing the handle sleeve from falling off.

[0006] Furthermore, the handle head is fixedly connected to the handle tube via two hexagon socket screws.

[0007] Furthermore, a plurality of anti-slip bosses are evenly spaced on the peripheral wall of the handle sleeve.

[0008] Furthermore, the limiting mechanism includes a mounting rod fixedly arranged in the middle of the handle tube, the mounting rod is arranged along the radial direction of the handle tube and symmetrically slidingly provided with two connecting plates, and the mounting rod is located in the middle of the two connecting plates and is sleeved with a spring; one end of the two mounting plates is respectively fixed with a sliding rod perpendicular thereto; the two sliding rods are respectively slidably engaged with first through holes symmetrically opened on the handle tube, and the free ends are respectively extended to the outside of the handle tube; the other ends of the two mounting plates are respectively fixed with limiting heads perpendicular thereto, and the two limiting heads are respectively slidably engaged with second through holes symmetrically opened on the handle tube, and the end of the handle sleeve is respectively provided with two limiting holes respectively adapted to the two limiting heads.

[0009] Furthermore, a button is fixedly provided on one end of the two sliding rods located outside the handle tube.

[0010] Furthermore, a connecting boss is provided at the end of the handle sleeve, and the two limiting holes are symmetrically opened on the inner wall of the connecting boss.

[0011] Compared with the prior art, the beneficial technical effects of the present invention are:

[0012] When using the utility model, the operator can hold the handle sleeve in the groove between the anti-slip bosses and forcibly rotate the handle 90 degrees forward to close the ball valve; and rotate the handle 90 degrees in the reverse direction to open the ball valve. After opening and closing the ball valve, a corresponding lock is installed through the circular lock hole and connected to the fixed components around the handle to realize the locking function of the handle, preventing the handle from being accidentally touched or arbitrarily turned, and ensuring the normal opening and closing state of the ball valve.

[0013] In addition, the present invention can effectively prevent the handle sleeve from rotating relative to or separating from the handle tube during use by fitting the handle sleeve onto the handle, and the limiting head of the limiting mechanism inside the handle tube cooperates with the limiting hole on the handle sleeve; and the handle sleeve and the handle tube are easy and quick to disassemble and assemble, which is conducive to replacing a new handle sleeve if the handle sleeve is damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Explanation of the accompanying drawings: 1. Handle tube; 2. Handle head; 3. Hexagon socket screw; 4. Locking hole; 5. Circular lock hole; 6. Handle cover; 7. Anti-slip boss; 8. Mounting rod; 9. Connecting plate; 10. Spring; 11. Sliding rod; 12. First through hole; 13. Button; 14. Limiting head; 15. Second through hole; 16. Limiting hole; 17. Connecting boss. DETAILED DESCRIPTION

[0019] like Figure 1-Figure 3 As shown, a lockable ball valve handle includes a handle tube 1 with a handle head 2 fixedly mounted at one end. Specifically, the handle head 2 is fixedly connected to the handle tube 1 via two hexagon socket screws 3. A square locking hole 4 is defined in the middle of the handle head 2 for connecting to the valve stem of the ball valve. A circular locking hole 5 is also defined near the handle tube 1 for attaching a lock.

[0020] The other end of the handle tube 1 is covered with a handle sleeve 6. The peripheral wall of the handle sleeve 6 is evenly spaced with a plurality of anti-slip bosses 7 to increase the friction when the operator grips the handle sleeve 6, making it easier for the operator to grip the handle sleeve 6 tightly and prevent it from slipping. In addition, the handle tube 1 is provided with a limiting mechanism for preventing the handle sleeve 6 from falling off.

[0021] In this embodiment, the limiting mechanism includes a mounting rod 8 fixedly installed in the middle of the handle tube 1. The mounting rod 8 is arranged along the radial direction of the handle tube 1 and has two connecting plates 9 symmetrically slidably installed. The mounting rod 8 is located in the middle of the two connecting plates 9 and is sleeved with a spring 10.

[0022] A slide bar 11 perpendicular to one end of each mounting plate 9 is fixedly mounted near the inner wall of the handle tube 1. The slide bars 11 slideably engage with first through-holes 12 symmetrically defined in the handle tube 1, and their free ends extend to the exterior of the handle tube 1. Furthermore, a button 13 is fixedly mounted at one end of each slide bar 11 located outside the handle tube 1. The outer diameter of the button 13 is larger than the inner diameter of the first through-hole 11.

[0023] A stopper 14 is fixedly mounted perpendicular to the other end of each mounting plate 9, adjacent to the inner wall of the handle tube 1. The two stoppers 14 slideably engage with second through-holes 15 symmetrically defined in the handle tube 1. The handle sleeve 6 has two stopper holes 16 defined at its end, each corresponding to the two stopper holes 14. Specifically, a connecting boss 17 is provided at the end of the handle sleeve 6, with the two stopper holes 16 symmetrically defined on the inner wall of the connecting boss 17.

[0024] When using the utility model, the operator can hold the handle sleeve in the groove between the anti-slip bosses and forcibly rotate the handle 90 degrees forward to close the ball valve; and rotate the handle 90 degrees in the reverse direction to open the ball valve. After opening and closing the ball valve, a corresponding lock is installed through the circular lock hole and connected to the fixed components around the handle to realize the locking function of the handle, preventing the handle from being accidentally touched or arbitrarily turned, and ensuring the normal opening and closing state of the ball valve.

[0025] In addition, by attaching a handle cover to the handle, and by cooperating the limiting heads of the limiting mechanism inside the handle tube with the limiting holes on the handle cover, the present invention can effectively prevent the handle cover from rotating relative to or separating from the handle tube during use. If the handle cover becomes damaged, the two knobs can be pressed to disengage the two limiting heads from the limiting holes, and the staff can remove the damaged handle cover from the handle tube. After the new handle cover is installed, the two knobs are loosened, and the two slides move away from each other under the action of the spring's return force, causing the two limiting heads to re-extend from the handle tube and cooperate with the limiting holes on the handle cover, thereby achieving the limited fixation of the handle cover.

[0026] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A lockable ball valve handle, characterized by: It includes a handle tube, one end of which is fixedly provided with a handle head, and the middle part of the handle head is provided with a square lock hole for connecting with the valve stem of the ball valve; the part of the handle head close to the handle tube is also provided with a circular lock hole for installing a lock; the other end of the handle tube is provided with a handle sleeve, and the handle tube is provided with a limiting mechanism for preventing the handle sleeve from falling off.

2. The lockable ball valve handle according to claim 1, characterized in that: The handle head is fixedly connected to the handle tube via two hexagon socket screws.

3. The lockable ball valve handle according to claim 1, characterized in that: A plurality of anti-slip bosses are evenly spaced on the peripheral wall of the handle sleeve.

4. The lockable ball valve handle according to claim 1, characterized in that: The limiting mechanism includes a mounting rod fixedly arranged in the middle of the handle tube, the mounting rod being arranged along the radial direction of the handle tube and symmetrically slidingly provided with two connecting plates, and the mounting rod being located in the middle of the two connecting plates and sleeved with a spring; one end of the two mounting rods is respectively fixedly provided with a sliding rod perpendicular thereto; the two sliding rods are respectively slidably engaged with first through holes symmetrically opened on the handle tube, and the free ends are respectively extended to the outside of the handle tube; the other ends of the two mounting rods are respectively fixedly provided with limiting heads perpendicular thereto, and the two limiting heads are respectively slidably engaged with second through holes symmetrically opened on the handle tube, and the end portion of the handle sleeve is respectively provided with two limiting holes respectively adapted to the two limiting heads.

5. The lockable ball valve handle according to claim 4, characterized in that: One end of the two sliding rods located outside the handle tube is respectively fixed with a button.

6. The lockable ball valve handle according to claim 4, characterized in that: A connecting boss is provided at the end of the handle sleeve, and the two limiting holes are symmetrically opened on the inner wall of the connecting boss.

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