Valve lock

Abstract

The invention relates to a valve lock which comprises a base, a hook rod, a fixing mechanism, a sealing cover and a lockset, the sealing cover is movably arranged on the base and provided with a locking cavity, the lockset is arranged on the sealing cover or the base and fixes the sealing cover and the base, and a fixing groove used for containing a handle is formed in the base. A communicating channel is arranged between the fixing groove and the locking cavity, the hook rod is arranged in the locking cavity, a hook head is arranged at the end of the hook rod, the fixing mechanism is arranged in the closed cavity and enables the hook head to have a fixing state of hooking the handle in the fixing groove, and a first blocking part is arranged at the bottom of the base and located on the relative rotation track of the valve.

Description

Technical Field

[0001] The invention relates to a lock, in particular to a valve lock. Background Art

[0002] Valves are pipe accessories used to open and close pipelines, control flow direction, and adjust and control the parameters of the conveying medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. Valves are control components in fluid conveying systems, with functions such as shutoff, regulation, diversion, prevention of backflow, pressure stabilization, diversion or overflow pressure relief. Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. The valve has a handle for controlling the switch, and in order to prevent the handle from being opened by unauthorized persons, the handle needs to be locked, but the current valve lock has an unstable fixing effect and poor safety. Summary of the invention

[0003] In view of the deficiencies in the prior art, an object of the present invention is to provide a valve lock.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: including a base, a hook rod, a fixing mechanism, a closing cover and a lock, wherein the closing cover is movably arranged on the base and has a locking cavity, the lock is arranged on the closing cover or the base and constitutes the fixation of the closing cover and the base, a fixing groove for accommodating a handle is arranged on the base, a connecting channel is arranged between the fixing groove and the locking cavity, the hook rod is arranged in the locking cavity and a hook head is arranged at the end, the fixing mechanism is arranged in the closing cavity and enables the hook head to have a fixed state of hooking the handle in the fixing groove, and a first blocking portion is arranged at the bottom of the base and the first blocking portion is located on the relative rotation trajectory of the valve.

[0005] By adopting the above technical solution, when the valve needs to be locked to prevent unauthorized persons from operating it, the handle of the valve can be placed in the fixing groove, and then the handle is hooked by the hook head, and then the hook rod is moved so that the hook rod fixes the handle, and finally the closing cover is closed, and the hook rod is hidden in the closing cavity formed by the base and the closing cover, and the base and the closing cover are fixed by the lock. By adding the base and the closing cover, the hook rod used for fixing is hidden to prevent it from being opened by unauthorized persons, thereby improving the fixing effect and having good safety performance.

[0006] The present invention is further configured as follows: the fixing mechanism includes a fixed block, a rotating block and a rotating shaft, the fixed block is arranged in the locking cavity, the rotating block and the fixed block are rotatably matched, a movable groove for the hook rod to move is arranged in the rotating block and the movable groove is opposite to the connecting channel, the rotating shaft is rotatably arranged in the movable groove, the hook rod is arranged on the rotating shaft and rotates synchronously with the rotating shaft.

[0007] By adopting the above technical solution, when the handle needs to be fixed by the hook rod, the rotating block is first rotated so that the rotating axis is close to the direction of the handle so that the hook head can hook the handle, and then the rotating block is rotated in the opposite direction to fix the hook rod.

[0008] The present invention is further configured as follows: a threaded portion is provided on the hook rod, and a threaded through hole is provided on the rotating shaft for threaded engagement with the threaded portion.

[0009] By adopting the above technical solution, the position of the hook rod can be adjusted through the threaded through hole and the threaded part.

[0010] The present invention is further configured as follows: the lock comprises a first lock body, a moving block and a return spring, the closing cover is provided with a sliding groove, the moving block is provided in the sliding groove, the return spring is provided between the moving block and the bottom of the sliding groove, the first lock body is provided on the closing cover and is opposite to the sliding groove, a first matching opening opposite to the sliding groove is provided on the base, the moving block has a sliding inclined surface whose cross-sectional area gradually decreases along the direction approaching the base and a truncated surface parallel to the horizontal plane, the sliding inclined surface abuts against the first matching opening and constitutes the sliding of the moving block in the sliding groove, and the first lock body has a linkage block for driving the moving block to slide.

[0011] By adopting the above technical solution, when it is necessary to fix the base and the closing cover, the closing cover is covered on the base. During this process, the sliding slope of the moving block will abut against the edge of the first matching opening, so that the moving block compresses the reset spring, and the moving block moves to enter the first matching opening until it passes through the first matching opening. At this time, under the action of the reset spring, the cross-section surface abuts against the base to prevent the moving block from passing through the first matching opening, thereby completing the fixation of the base and the closing cover. When it is necessary to open the base and the closing cover, the first lock body is rotated by the key, so that the first lock body drives the moving block through the linkage block, so that the moving block compresses the reset spring, thereby being able to disengage from the first matching opening.

[0012] The present invention is further configured as follows: the lock comprises a second lock body and a matching block, the second lock body is arranged on the closing cover, the second lock body drives the matching block to rotate, and a second matching opening matching the shape of the matching block is arranged on the base.

[0013] By adopting the above technical solution, when the base and the closing cover need to be fixed, the closing cover is covered on the base, and then the matching block is rotated through the second lock body by using the key, so that the matching block is rotated to pass through the second matching opening, and then the matching block is rotated again to prevent the matching block from detaching from the second matching opening.

[0014] The present invention is further configured as follows: a first blocking portion is provided at the bottom of the base and the first blocking portion is located on the relative rotation trajectory of the valve.

[0015] By adopting the above technical solution, when the valve needs to be locked when it is closed, the handle is first inserted into the fixing groove and then fixed by the hook rod. At this time, the first blocking part is against the water pipe corresponding to the valve to prevent the valve from swinging and affecting the fixing effect.

[0016] The present invention is further configured such that a second blocking portion is provided on the adjacent side of the bottom of the base relative to the first blocking portion.

[0017] By adopting the above technical solution, when the valve needs to be locked when it is open, the handle is first inserted into the fixing groove and then fixed by the hook rod. At this time, the second blocking part is against the water pipe corresponding to the valve to prevent the valve from swinging and affecting the fixing effect.

[0018] The present invention is further configured as follows: the fixing groove has a matching arc surface adapted to the handle, and a stopper is arranged on the other side.

[0019] By adopting the above technical solution, the setting of the stopper prevents the handle from being disengaged from the side of the stopper, thereby increasing the fixing effect.

[0020] The present invention is further configured such that: the base is rotatably matched with the closing cover.

[0021] The present invention is further configured as follows: a shielding plate located above the valve is arranged on the base.

[0022] By adopting the above technical solution, the setting of the baffle plate blocks the top of the valve, thereby preventing others from directly removing the handle from the valve and unlocking the valve.

[0023] Beneficial effect: The first blocking part and the second blocking part are provided at the same time so that the valve can be locked when it is opened and when it is closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure when the base and the closing cover are closed in the specific implementation 1 of the present invention; Figure 2 It is a schematic diagram of the overall structure of the base and the closure cover when they are opened in the specific implementation 1 of the present invention; Figure 3 It is a cross-sectional view of the base and the closure cover when they are closed in the specific embodiment 1 of the present invention; Figure 4 For the present invention Figure 3 A partial enlarged view of middle A; Figure 5 It is a schematic diagram of the overall structure of the base and the closure cover when they are opened in the specific implementation 2 of the present invention; Figure 6 This is a diagram showing the use state of the valve of the present invention when it is closed and fixed; Figure 7This is a diagram of the use state of the valve of the present invention when it is opened and fixed.

[0025] In the figure: 1. base; 11. locking cavity; 12. fixing groove; 13. communication channel; 14. shielding plate; 2. hook rod; 21. hook head; 3. fixing mechanism; 31. fixing block; 32. rotating block; 33. rotating shaft; 34. movable groove; 35. threaded portion; 36. threaded through hole; 4. closing cover; 5. lock; 51. first lock body; 52. moving block; 53. return spring; 54. sliding groove; 55. first matching port; 56. sliding inclined surface; 57. truncated surface; 58. linkage block; 59. second lock body; 591. matching block; 592. second matching port; 6. first blocking portion; 7. second blocking portion; 8. matching arc surface; 9. stop block. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] like Figure 1-7As shown, the present invention discloses a valve lock, comprising a base 1, a hook rod 2, a fixing mechanism 3, a closing cover 4 and a lock 5, wherein the closing cover 4 is movably arranged on the base 1 and has a locking cavity 11, the lock 5 is arranged on the closing cover 4 or the base 1 and constitutes the fixing of the closing cover 4 and the base 1, the base 1 is provided with a fixing groove 12 for accommodating a handle, a connecting channel 13 is provided between the fixing groove 12 and the locking cavity 11, the hook rod 2 is arranged in the locking cavity 11 and has a hook head 21 at the end thereof, the fixing mechanism 3 is arranged in the closing cavity and enables the hook head 21 to have a fixed state of hooking the handle in the fixing groove 12, A first blocking portion 6 is provided at the bottom of the base 1 and the first blocking portion 6 is located on the relative rotation trajectory of the valve. When the valve needs to be locked to prevent unauthorized persons from operating it, the handle of the valve can be placed in the fixing groove 12, and then the handle is hooked by the hook head 21, and then the hook rod 2 is moved so that the hook rod 2 fixes the handle, and finally the closing cover 4 is covered, and the hook rod 2 is hidden in the closing cavity formed by the base 1 and the closing cover 4, and the base 1 and the closing cover 4 are fixed by the lock 5. By adding the base 1 and the closing cover 4, the hook rod 2 used for fixing is hidden to prevent it from being opened by unauthorized persons, thereby improving the fixing effect and having good safety performance.

[0029] The fixing mechanism 3 includes a fixing block 31, a rotating block 32 and a rotating shaft 33. The fixing block 31 is arranged in the locking cavity 11. The rotating block 32 rotates with the fixing block 31. A movable groove 34 for the hook rod 2 to move is arranged in the rotating block 32, and the movable groove 34 is opposite to the connecting channel 13. The rotating shaft 33 is rotatably arranged in the movable groove 34. The hook rod 2 is arranged on the rotating shaft 33 and rotates synchronously with the rotating shaft 33. When the hook rod 2 needs to fix the handle, the rotating block 32 is first rotated so that the rotating shaft 33 is close to the direction of the handle, so that the hook head 21 can hook the handle, and then the rotating block 32 is rotated in the opposite direction to fix the hook rod 2.

[0030] The hook rod 2 is provided with a threaded portion 35 , and the rotating shaft 33 is provided with a threaded through hole 36 for threaded engagement with the threaded portion 35 . The position of the hook rod 2 can be adjusted through the threaded through hole 36 and the threaded portion 35 .

[0031] The lock 5 includes a first lock body 51, a moving block 52 and a return spring 53. The closing cover 4 is provided with a sliding groove 54. The moving block 52 is arranged in the sliding groove 54. The return spring 53 is arranged between the moving block 52 and the bottom of the sliding groove 54. The first lock body 51 is arranged on the closing cover 4 and is opposite to the sliding groove 54. The base 1 is provided with a first matching opening 55 opposite to the sliding groove. The moving block 52 has a sliding inclined surface 56 with a gradually decreasing cross-sectional area in a direction close to the base 1 and a truncation surface 57 parallel to the horizontal plane. The sliding inclined surface 56 abuts against the first matching opening 55 and constitutes the sliding of the moving block 52 in the sliding groove 54. The first lock body 51 has a linkage block 58 for driving the moving block 52 to slide. When the base 1 and the closing cover 4 need to be adjusted, the first lock body 51 is provided with a linkage block 58 for driving the moving block 52 to slide. When fixing, the closing cover 4 is covered on the base 1. During this process, the sliding slope 56 of the moving block 52 will abut against the edge of the first matching opening 55, so that the moving block 52 compresses the return spring 53, and the moving block 52 moves to enter the first matching opening 55 until it passes through the first matching opening 55. At this time, under the action of the return spring 53, the truncation surface 57 abuts against the base 1 to prevent the moving block 52 from passing through the first matching opening 55, thereby completing the fixation of the base 1 and the closing cover 4. When it is necessary to open the base 1 and the closing cover 4, the first lock body 51 is rotated by the key, so that the first lock body 51 drives the moving block 52 through the linkage block 58, so that the moving block 52 compresses the return spring 53, so that it can be disengaged from the first matching opening 55.

[0032] The lock 5 includes a second lock body 59 and a matching block 591. The second lock body 59 is arranged on the closing cover 4. The second lock body 59 drives the matching block 591 to rotate. A second matching opening 592 that is adapted to the shape of the matching block 591 is arranged on the base 1. When it is necessary to fix the base 1 and the closing cover 4, the closing cover 4 is covered on the base 1, and then the matching block 591 is rotated through the second lock body 59 by using a key, so that the matching block 591 is rotated to pass through the second matching opening 592, and then the matching block 591 is rotated again to prevent the matching block 591 from detaching from the second matching opening 592.

[0033] A first blocking portion 6 that abuts against the valve is provided at the bottom of the base 1. When the valve needs to be locked when it is closed, the handle is first inserted into the fixing groove 12 and then fixed by the hook rod 2. At this time, the first blocking portion 6 abuts against the water pipe corresponding to the valve to prevent the valve from swinging and affecting the fixing effect.

[0034] A second blocking portion 7 is provided at the adjacent side of the first blocking portion 6 at the bottom of the base 1. When the valve needs to be locked when the valve is opened, the handle is first inserted into the fixing groove 12 and then fixed by the hook rod 2. At this time, the second blocking portion 7 is against the water pipe corresponding to the valve to prevent the valve from swinging and affecting the fixing effect.

[0035] The fixing groove 12 has a matching arc surface 8 that matches the handle, and a stopper 9 is provided on the other side. The setting of the stopper 9 prevents the handle from detaching from the side of the stopper 9, thereby increasing the fixing effect.

[0036] The base 1 is provided with a shielding plate 14 located above the valve. The shielding plate 14 shields the top of the valve, thereby preventing others from directly removing the handle from the valve and unlocking the valve.

[0037] Specific embodiment 1: When the valve needs to be locked to prevent unauthorized persons from operating it, the handle of the valve can be placed in the fixing groove 12, and the rotating block 32 is first rotated to make the rotating shaft 33 close to the direction of the handle so that the hook head 21 can hook the handle, and then the rotating block 32 is rotated in the opposite direction to fix the hook rod 2, and finally the closing cover 4 is covered, and the hook rod 2 is hidden in the closed cavity formed by the base 1 and the closing cover 4. At this time, the water pipe of the valve is against the first blocking part 6 or the second blocking part 7 to ensure that the base 1 will not rotate directly with the handle, and the base 1 and the closing cover 4 are fixed by the lock 5. In this process, the sliding of the moving block 52 The inclined surface 56 will abut against the edge of the first matching opening 55, so that the moving block 52 compresses the reset spring 53, and the moving block 52 moves, thereby entering the first matching opening 55 until it passes through the first matching opening 55. At this time, under the action of the reset spring 53, the truncation surface 57 abuts against the base 1 to prevent the moving block 52 from passing through the first matching opening 55, thereby completing the fixation of the base 1 and the closing cover 4. When it is necessary to open the base 1 and the closing cover 4, the first lock body 51 is rotated by the key, so that the first lock body 51 drives the moving block 52 through the linkage block 58, so that the moving block 52 compresses the reset spring 53, so that it can be disengaged from the first matching opening 55.

[0038] Specific embodiment 2: The difference from specific embodiment 1 is that the lock 5 is set differently, and a key is used to directly control opening and closing.

Claims

1. A valve lock, Features: The invention comprises a base (1), a hook rod (2), a fixing mechanism (3), a closing cover (4) and a lock (5); the closing cover (4) is movably arranged on the base (1) and has a locking cavity (11); the lock (5) is arranged on the closing cover (4) or the base (1) and is used to fix the closing cover (4) and the base (1); a fixing groove (12) for accommodating a handle is arranged on the base (1); a connecting channel (13) is arranged between the fixing groove (12) and the locking cavity (11); the hook rod (2) is arranged in the locking cavity (11) and has a hook head (21) at the end; the fixing mechanism (3) is arranged in the closing cavity and enables the hook head (21) to have a fixed state of hooking the handle in the fixing groove (12); a first blocking portion (6) is arranged at the bottom of the base (1) and the first blocking portion (6) is located on the relative rotation trajectory of the valve.

2. A valve lock according to claim 1, Features: The fixing mechanism (3) comprises a fixing block (31), a rotating block (32) and a rotating shaft (33); the fixing block (31) is arranged in the locking cavity (11); the rotating block (32) and the fixing block (31) are rotatably matched; a movable groove (34) for the hook rod (2) to move is arranged in the rotating block (32); the movable groove (34) is opposite to the connecting channel (13); the rotating shaft (33) is rotatably arranged in the movable groove (34); the hook rod (2) is arranged on the rotating shaft (33) and rotates synchronously with the rotating shaft (33).

3. A valve lock according to claim 2, Features: The hook rod (2) is provided with a threaded portion (35), and the rotating shaft (33) is provided with a threaded through hole (36) for threaded engagement with the threaded portion (35).

4. A valve lock according to claim 1, Features: The lock (5) comprises a first lock body (51), a moving block (52) and a return spring (53); the closing cover (4) is provided with a sliding groove (54); the moving block (52) is arranged in the sliding groove (54); the return spring (53) is arranged between the moving block (52) and the bottom of the sliding groove (54); the first lock body (51) is arranged on the closing cover (4) and is opposite to the sliding groove (54); the base (1) is provided with a first matching opening (55) opposite to the sliding groove; the moving block (52) has a sliding inclined surface (56) whose cross-sectional area gradually decreases along a direction approaching the base (1) and a truncated surface (57) parallel to a horizontal plane; the sliding inclined surface (56) abuts against the first matching opening (55) and constitutes the sliding of the moving block (52) in the sliding groove (54); the first lock body (51) has a linkage block (58) for driving the moving block (52) to slide.

5. A valve lock according to claim 1, Features: The lock (5) comprises a second lock body (59) and a matching block (591); the second lock body (59) is arranged on the closing cover (4); the second lock body (59) drives the matching block (591) to rotate; and the base (1) is provided with a second matching opening (592) matching the shape of the matching block (591).

6. A valve lock according to claim 1, Features: A second blocking portion (7) is provided on the adjacent side of the bottom of the base (1) relative to the first blocking portion (6).

7. A valve lock according to claim 1, Features: One side of the fixing groove (12) is provided with a matching arc surface (8) adapted to the handle, and the other side is provided with a stopper (9).

8. A valve lock according to claim 1, Features: The base (1) and the closing cover (4) are rotatably matched.

9. A valve lock according to claim 1, Features: The base (1) is provided with a shielding plate (14) located above the valve.

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