Adjustable valve lock

Abstract

The adjustable valve lock comprises a first shell and a second shell which are arranged in a split mode, the first shell is provided with a first concave cavity, a first sleeving opening is formed in the position of a cavity opening, a first concave opening is formed in the lower side edge of the first sleeving opening, the second shell is provided with a second concave cavity, a second sleeving opening is formed in the position of a cavity opening, and a second concave opening is formed in the lower side edge of the second sleeving opening. A second notch is formed in the lower side edge of the second sleeving opening, the first sleeving opening faces the second sleeving opening so that the first shell and the second shell can be connected in a sleeving mode, and the first shell is provided with a lock cylinder and a spring bolt controlled to stretch out and draw back through the lock cylinder. The second shell is provided with a plurality of locking grooves arranged in the sleeving direction of the first shell and the second shell, and the spring bolts are matched with the locking grooves so as to control the mutual sleeving depth between the first shell and the second shell. The device has the advantages of being compact in structure and fine and smooth in size / specification adjustment.

Description

Technical Field

[0001] The utility model relates to the field of valve locks, in particular to an adjustable valve lock. Background Art

[0002] The valve lock is used to lock the valve stem, handwheel or handle of the valve. For valves of different sizes / specifications, the sizes of the valve stem, handwheel or handle are different. To address this problem, Chinese patent CN 201520252087.1 discloses a protective lock for a flange ball valve, including a first shell and a second shell, which are separately arranged. The first shell and the second shell are arranged opposite to each other. A first concave cavity is provided on the opposite surface of the first shell and the second shell, and a second concave cavity is provided on the opposite surface of the second shell and the first shell. A first notch is provided at the opposite end of the lower side wall of the first shell and the second shell, and the first notch is communicated with the first concave cavity. A second notch is provided at the opposite end of the lower side wall of the second shell and the first shell, and the second notch is communicated with the second concave cavity. The first shell is inserted in the second concave cavity, and a protective cavity is formed between the first shell and the second shell. The first notch and the second notch form a limit port, and lock holes are provided at corresponding positions on the first shell and the second shell.

[0003] Although this patent solves the adaptation problem of valves of different sizes / specifications, since the adaptation and adjustment of the first shell and the second shell are achieved by means of preset lock holes, the cooperation of a padlock and a lock hole is required to achieve the locking purpose, so the overall compactness is poor. At the same time, due to the spacing distance problem between the lock holes, a large size gap will be generated when adjusting between adjacent lock holes. When adapting to valves of different sizes / specifications, its adaptability and adjustability are poor. Utility Model Content

[0004] Based on the above problems, the utility model aims to provide an adjustable valve lock with compact structure and fine size / specification adjustment.

[0005] In view of the above problems, the following technical solutions are provided: an adjustable valve lock, comprising a first shell and a second shell which are separately arranged, the first shell being provided with a first concave cavity and forming a first socket at the cavity opening, the lower side of the first socket being provided with a first notch, the second shell being provided with a second concave cavity and forming a second socket at the cavity opening, the lower side of the second socket being provided with a second notch, the first socket facing the second socket making the first shell and the second shell mutually socketed, the first shell being provided with a lock core and a lock tongue which is controlled to be retracted and extended by the lock core; the second shell being provided with a plurality of locking grooves arranged in the socketing direction of the first shell and the second shell, the lock tongue and the locking groove being adapted to control the mutual socketing depth between the first shell and the second shell.

[0006] In the above structure, by providing a plurality of locking grooves arranged along the sleeve connection direction of the first shell and the second shell, the lock tongue is adapted to the locking groove at any position for locking when the first shell and the second shell are sleeved together, so that a more delicate locking gear adjustment can be produced when locking and adjusting valves of different sizes / specifications to ensure the reliability of locking; since the lock core and the lock tongue are integrally arranged on the first shell, the overall compactness is strong, and it is convenient and reliable to use; the first recess and the second recess allow the valve stem to pass through or be stuck under the pressure cover of the valve when the first shell and the second shell are closed; the first concave cavity and the second concave cavity are used to accommodate the handwheel or handle of the locked valve.

[0007] The utility model is further configured such that the first shell is sleeved outside the second shell, and the inner wall of the first concave cavity and the outer wall of the second shell are in clearance fit.

[0008] In the above structure, it can be ensured that the first shell can be smoothly mounted on the second shell.

[0009] The utility model is further configured as follows: a lock core bracket is provided on the outer side of the upper side wall of the first shell, and the lock core can be rotatably arranged in the lock core bracket; a driving member that rotates with the lock core is provided at the rear end of the lock core, and the driving member is provided with an abutment surface, and the abutment surface abuts against the lock tongue to control the extension and retraction of the lock tongue; the locking groove is located at the upper side wall of the second shell.

[0010] In the above structure, the abutment surface can be an arc surface or a plane, which pushes the lock tongue to slide when the driving member rotates; the abutment surface can also be the outer cylindrical surface of an eccentric pin eccentrically arranged relative to the driving member. When the abutment surface is an eccentric pin, the eccentric pin is hinged to the hinge hole on the lock tongue so that it pushes the lock tongue to slide when following the eccentric movement of the driving member.

[0011] The utility model is further configured such that the driving member includes an unlocking surface arranged close to the rotation center of the driving member, the abutting surface is arranged away from the rotation center of the driving member relative to the unlocking surface, and the abutting surface is connected to the unlocking surface in the rotation direction of the driving member.

[0012] In the above structure, the unlocking surface provides a retreat space for the lock tongue to be unlocked.

[0013] The utility model is further configured such that the rotation axis of the lock core is perpendicular to the upper side wall of the first shell, and the extension and retraction direction of the lock tongue is parallel to the horizontal direction of the upper side wall of the first shell.

[0014] In the above structure, the rotation axis of the lock core can be arranged to be parallel to the upper side wall of the first housing as required.

[0015] The utility model is further configured that the upper side wall of the lock core bracket is provided with a lock hole corresponding to the lock core, and the upper side wall of the lock core bracket is also provided with a baffle plate which is slidably arranged.

[0016] In the above structure, the baffle blocks the lock hole by sliding, thereby protecting the lock core from foreign objects entering.

[0017] The utility model is further configured that the locking grooves are arranged along the sleeve connection direction of the first shell and the second shell to form a rack, and the rack is centrally arranged on the upper side wall of the second shell.

[0018] In the above structure, the central arrangement can effectively ensure the stability of the force applied to the first shell and the second shell when they are locked.

[0019] The utility model is further configured as follows: there are two racks, which are parallel to each other and symmetrically arranged on both sides of the dividing line of the upper side wall of the second shell; the driving member is provided with two abutment surfaces arranged at an interval of 180 degrees; there are two locking tongues, which are arranged at an interval of 180 degrees along the rotation direction of the driving member and abut against the corresponding abutment surfaces respectively, and when the driving member rotates, the two locking tongues move away from each other and engage and lock with the locking grooves of each rack.

[0020] In the above structure, since there are two lock tongues, when subjected to violent disassembly, the two lock tongues can be brought close to each other and abut against the abutment surface to offset the stress, thereby preventing the lock core and the drive member from rotating; at the same time, the two lock tongues will generate opposite repulsive forces on the two racks and limit the two racks from moving away from each other, resulting in unlocking; if a single-sided rack is provided, it is easy for the lock tongue and the rack to move away from each other during violent disassembly, resulting in unlocking.

[0021] The utility model is further configured as follows: the rack is higher than the upper side wall of the second shell, and the side of the rack facing away from the other rack is provided with an anti-slip edge, and the anti-slip edges of the two racks together constitute a T-shaped / dovetail-shaped slider; a side of the upper side wall of the first shell facing the upper side wall of the second shell is provided with a T-shaped / dovetail-shaped groove, and the T-shaped / dovetail-shaped slider is slidably matched with the T-shaped / dovetail-shaped groove.

[0022] In the above structure, the cooperation between the T-shaped / dovetail-shaped sliding groove and the T-shaped / dovetail-shaped sliding block can effectively improve the overall rigidity and enhance the restraining effect on the sliding direction between the first shell and the second shell.

[0023] The utility model is further configured such that the locking tongue comprises a tongue body for engaging and locking with the locking groove and support parts located on both sides of the tongue body, and the support parts are provided with a retreat spring for pushing the tongue body to separate from the locking groove.

[0024] In the above structure, the retreat spring is used to push the lock tongue to unlock and reset.

[0025] The beneficial effects of the utility model are as follows: by providing a plurality of locking grooves arranged along the sleeve connection direction of the first shell and the second shell, the locking tongue is adapted to the locking groove at any position for locking when the first shell and the second shell are sleeved together, so that a more delicate locking gear adjustment can be produced when locking and adjusting valves of different sizes / specifications to ensure the reliability of locking; since the lock core and the locking tongue are integrally arranged on the first shell, the overall compactness is strong, and the use is convenient and reliable; the first recess and the second recess allow the valve stem to pass through or be stuck under the pressure cover of the valve when the first shell and the second shell are closed; the first concave cavity and the second concave cavity are used to accommodate a handwheel or handle of the locked valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional structural diagram of the first shell and the second shell of the utility model in a sleeved state from a first viewing angle.

[0027] Figure 2 It is a stereoscopic structural diagram of the first shell and the second shell of the utility model in the sleeved state from a second viewing angle.

[0028] Figure 3 This is a three-dimensional structural diagram from the first perspective of the first shell and the second shell of the utility model in an adaptive adjustment state according to the valve size / specification.

[0029] Figure 4 This is a stereoscopic structural diagram from a second perspective of the first shell and the second shell of the utility model in an adaptive adjustment state according to the valve size / specification.

[0030] Figure 5 It is a three-dimensional structural diagram of the utility model in a first viewing angle in a state where the first shell and the second shell are separated.

[0031] Figure 6 It is a stereoscopic structural diagram of the utility model in a state where the first shell and the second shell are separated from each other from a second viewing angle.

[0032] Figure 7 This is a three-dimensional structural diagram of the first housing of the utility model in a partially cutaway view of the lock tongue in an unlocked state from a first viewing angle.

[0033] Figure 8 It is a three-dimensional structural diagram of a partially cutaway portion of the first housing of the utility model in a locked state of the lock tongue.

[0034] Fig. 9 This is a three-dimensional structural diagram of the first shell of the utility model in a partially cutaway view of the lock tongue in an unlocked state from a second viewing angle.

[0035] Fig.10 It is a three-dimensional structural diagram of the position state of the driving member when the lock tongue is unlocked in the utility model.

[0036] Fig.11It is a three-dimensional structural diagram of the position state of the driving member when the lock tongue is locked in the utility model.

[0037] Fig.12 It is a three-dimensional structural diagram of the utility model in a separated state of the first shell and the second shell from a third viewing angle.

[0038] Meanings of the numbers in the figure: 10-first shell; 11-first concave cavity; 12-first socket; 13-first notch; 14-T-shaped / dovetail-shaped slide groove; 20-second shell; 21-second concave cavity; 22-second socket; 23-second notch; 24-tooth rack; 241-locking groove; 242-anti-slip edge; 25-T-shaped / dovetail-shaped slider; 30-lock core bracket; 301-lock hole; 302-baffle; 31-lock core; 32-lock tongue; 321-tongue body; 322-support portion; 323-retreat spring; 33-driving member; 331-abutment surface; 332-unlocking surface. DETAILED DESCRIPTION

[0039] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0040] refer to Figures 1 to 12 ,like Figures 1 to 12 The adjustable valve lock shown in the figure comprises a first shell 10 and a second shell 20 which are separately arranged, wherein the first shell 10 is provided with a first concave cavity 11 and a first sleeve interface 12 is formed at the cavity opening, and a first notch 13 is provided on the lower side of the first sleeve interface 12, and the second shell 20 is provided with a second concave cavity 21 and a second sleeve interface 22 is formed at the cavity opening, and a second notch 23 is provided on the lower side of the second sleeve interface 22, and the first sleeve interface 12 faces the second sleeve interface 22 so that the first shell 10 and the second shell 20 are mutually sleeved, and the first shell 10 is provided with a lock core 31 and a lock tongue 32 which is controlled to be retracted and extended by the lock core 31; the second shell 20 is provided with a plurality of locking grooves 241 arranged in the sleeve connection direction between the first shell 10 and the second shell 20, and the lock tongue 32 and the locking groove 241 are adapted to control the mutual sleeve connection depth between the first shell 10 and the second shell 20.

[0041] In the above structure, by providing a plurality of locking grooves 241 arranged along the sleeve connection direction of the first shell 10 and the second shell 20, when the first shell 10 and the second shell 20 are sleeved together, the locking tongue 32 is adapted to the locking groove 241 at any position for locking, so that when locking and adjusting valves of different sizes / specifications, a more delicate locking gear adjustment can be produced to ensure the reliability of locking; since the lock core 31 and the locking tongue 32 are integrally arranged on the first shell 10, the overall compactness is strong, and it is convenient and reliable to use; the first recess 13 and the second recess 23 are for the valve stem to pass through or be stuck under the pressure cover of the valve when the first shell 10 and the second shell 20 are closed; the first concave cavity 11 and the second concave cavity 21 are used to accommodate the handwheel or handle of the locked valve.

[0042] In this embodiment, the first shell 10 is sleeved outside the second shell 20 , and the inner wall of the first cavity 11 and the outer wall of the second shell 20 are clearance-matched.

[0043] In the above structure, it can be ensured that the first shell 10 can be smoothly inserted into the second shell 20 .

[0044] In this embodiment, a lock core bracket 30 is provided on the outer side of the upper side wall of the first shell 10, and the lock core 31 can be rotatably arranged in the lock core bracket 30; a driving member 33 is provided at the rear end of the lock core 31 to rotate with the lock core 31, and the driving member 33 is provided with an abutment surface 331, and the abutment surface 331 is adapted to abut against the lock tongue 32 to control the extension and retraction of the lock tongue 32; the locking groove 241 is located at the upper side wall of the second shell 20.

[0045] In the above structure, the abutment surface 331 can be an arc surface (an arc surface in the figure) or a plane, which pushes the lock tongue 32 to slide when the driving member 33 rotates; the abutment surface 331 can also be the outer cylindrical surface of an eccentric pin eccentrically arranged relative to the driving member 33 (not shown in the figure). When the abutment surface 331 is an eccentric pin, the eccentric pin is hinged to the hinge hole (not shown in the figure) on the lock tongue 32 so that it pushes the lock tongue 32 to slide when following the eccentric movement of the driving member 33.

[0046] In this embodiment, the driving member 33 includes an unlocking surface 332 arranged close to the rotation center of the driving member 33, and the abutting surface 331 is arranged away from the rotation center of the driving member 33 relative to the unlocking surface 332, and the abutting surface 331 is connected to the unlocking surface 332 in the rotation direction of the driving member 33.

[0047] In the above structure, the unlocking surface 332 provides a retreat space for the locking tongue 32 to be unlocked.

[0048] In this embodiment, the rotation axis of the lock core 31 is perpendicular to the upper side wall of the first housing 10 , and the extension direction of the lock tongue 32 is parallel to the horizontal direction of the upper side wall of the first housing 10 .

[0049] In the above structure, the rotation axis of the lock core 31 can be set to be parallel to the upper side wall of the first housing 10 as required.

[0050] In this embodiment, a lock hole 301 corresponding to the lock core 31 is provided on the upper side wall of the lock core bracket 30 , and a baffle 302 which is slidably arranged is also provided on the upper side wall of the lock core bracket 30 .

[0051] In the above structure, the baffle 302 blocks the lock hole 301 by sliding, thereby protecting the lock core 31 from foreign matter entering.

[0052] In this embodiment, the locking grooves 241 are arranged along the sleeve connection direction of the first shell 10 and the second shell 20 to form a rack 24 , and the rack 24 is centrally disposed on the upper side wall of the second shell 20 .

[0053] In the above structure, the central arrangement can effectively ensure the stability of the force applied to the first shell 10 and the second shell 20 when they are locked.

[0054] In this embodiment, there are two racks 24, which are parallel to each other and symmetrically arranged on both sides of the dividing line of the upper side wall of the second shell 20; the driving member 33 is provided with two abutment surfaces 331 arranged at an interval of 180 degrees; there are two locking tongues 32, which are arranged at an interval of 180 degrees along the rotation direction of the driving member 33 and abut against the corresponding abutment surfaces 331 respectively. When the driving member 33 rotates, the two locking tongues 32 move away from each other and engage and lock with the locking grooves 241 of each rack 24.

[0055] In the above structure, since there are two lock tongues 32, when subjected to violent disassembly, the two lock tongues 32 can be brought close to each other and abut against the abutment surface 331 to offset the stress, thereby preventing the lock cylinder 31 and the drive member 33 from rotating; at the same time, the two lock tongues 32 will generate opposite repulsive forces on the two racks 24 and limit the two racks 24 from moving away from each other, resulting in unlocking; if a single-sided rack 24 is provided, it is easy for the lock tongue 32 and the rack 24 to move away from each other during violent disassembly, resulting in unlocking.

[0056] In this embodiment, the rack 24 is higher than the upper side wall of the second shell 20, and the side of the rack 24 facing away from the other rack 24 is provided with an anti-slip edge 242, and the anti-slip edges 242 of the two racks 24 together constitute a T-shaped / dovetail-shaped slider 25; the side of the upper side wall of the first shell 10 facing the upper side wall of the second shell 20 is provided with a T-shaped / dovetail-shaped groove 14, and the T-shaped / dovetail-shaped slider 25 is slidably matched with the T-shaped / dovetail-shaped groove 14.

[0057] In the above structure, the cooperation between the T-shaped / dovetail-shaped slide groove 14 and the T-shaped / dovetail-shaped slider 25 can effectively improve the overall rigidity and enhance the restraint effect on the sliding direction between the first shell 10 and the second shell 20 .

[0058] In this embodiment, the locking tongue 32 includes a tongue body 321 for engaging and locking with the locking groove 241 and support portions 322 located on both sides of the tongue body 321 . The support portions 322 are each provided with a retreat spring 323 for pushing the tongue body 321 to separate from the locking groove 241 .

[0059] In the above structure, the retreat spring 323 is used to push the lock tongue 32 to unlock and reset.

[0060] The beneficial effects of the utility model are as follows: by providing a plurality of locking grooves 241 arranged along the sleeve connection direction of the first shell 10 and the second shell 20, when the first shell 10 and the second shell 20 are sleeved together, the locking tongue 32 is adapted to the locking groove 241 at any position for locking, so that when locking and adjusting valves of different sizes / specifications, a more delicate locking gear adjustment can be produced to ensure the reliability of locking; since the lock core 31 and the locking tongue 32 are integrally arranged on the first shell 10, the overall compactness is strong, and it is convenient and reliable to use; the first recess 13 and the second recess 23 are for the valve stem to pass through or be stuck under the pressure cover of the valve when the first shell 10 and the second shell 20 are closed; the first concave cavity 11 and the second concave cavity 21 are used to accommodate the hand wheel or handle of the locked valve.

[0061] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications of the above assumptions should also be regarded as the protection scope of the present invention.

Claims

1. An adjustable valve lock, comprising a first shell and a second shell which are separately arranged, wherein the first shell is provided with a first concave cavity and a first sleeve interface is formed at the cavity opening, a first notch is provided at the lower side of the first sleeve interface, the second shell is provided with a second concave cavity and a second sleeve interface is formed at the cavity opening, a second notch is provided at the lower side of the second sleeve interface, the first sleeve interface faces the second sleeve interface so that the first shell and the second shell are sleeved with each other, characterized in that: The first shell is provided with a lock core and a lock tongue which is controlled to extend and retract by the lock core; the second shell is provided with a plurality of locking grooves arranged in the direction of the first shell and the second shell, and the lock tongue and the locking groove are adapted to control the mutual socketing depth between the first shell and the second shell.

2. An adjustable valve lock according to claim 1, characterized in that: The first shell is sleeved outside the second shell, and the inner wall of the first cavity is clearance-matched with the outer wall of the second shell.

3. An adjustable valve lock according to claim 2, characterized in that: A lock core bracket is provided on the outer side of the upper side wall of the first shell, and the lock core can be rotatably arranged in the lock core bracket; a driving member that rotates with the lock core is provided at the rear end of the lock core, and the driving member is provided with an abutment surface, and the abutment surface abuts against the lock tongue to control the extension and retraction of the lock tongue; the locking groove is located at the upper side wall of the second shell.

4. The adjustable valve lock according to claim 3, characterized in that: The driving member comprises an unlocking surface arranged close to the rotation center of the driving member, the abutting surface is arranged away from the rotation center of the driving member relative to the unlocking surface, and the abutting surface is connected to the unlocking surface in the rotation direction of the driving member.

5. The adjustable valve lock according to claim 3, characterized in that: The rotation axis of the lock core is perpendicular to the upper side wall of the first shell, and the extension direction of the lock tongue is parallel to the horizontal direction of the upper side wall of the first shell.

6. The adjustable valve lock according to claim 3, characterized in that: The upper side wall of the lock core bracket is provided with a lock hole corresponding to the lock core, and the upper side wall of the lock core bracket is also provided with a baffle which is slidably arranged.

7. An adjustable valve lock according to claim 3 or 4 or 5 or 6, characterized in that: The locking grooves are arranged along the sleeve connection direction of the first shell and the second shell to form a rack, and the rack is centrally arranged on the upper side wall of the second shell.

8. The adjustable valve lock according to claim 7, characterized in that: There are two racks, which are parallel to each other and symmetrically arranged on both sides of the dividing line of the upper side wall of the second shell; the driving member is provided with two abutment surfaces arranged at an interval of 180 degrees; there are two locking tongues, which are arranged at an interval of 180 degrees along the rotation direction of the driving member and abut against the corresponding abutment surfaces respectively, and when the driving member rotates, the two locking tongues move away from each other and engage and lock with the locking grooves of each rack.

9. The adjustable valve lock according to claim 8, characterized in that: The rack is higher than the upper side wall of the second shell, and the side of the rack facing away from the other rack is provided with an anti-slip edge, and the anti-slip edges of the two racks together constitute a T-shaped / dovetail slider; the side of the upper side wall of the first shell facing the upper side wall of the second shell is provided with a T-shaped / dovetail slide groove, and the T-shaped / dovetail slide block slides in cooperation with the T-shaped / dovetail slide groove.

10. An adjustable valve lock according to claim 1 or 2 or 3 or 4 or 5 or 6, characterized in that: The locking tongue comprises a tongue body for engaging and locking with the locking groove and supporting parts located at both sides of the tongue body, and the supporting parts are provided with a retreat spring for pushing the tongue body to separate from the locking groove.

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