CN212004522U - Coded lock and valve with coded lock - Google Patents

Abstract

The utility model provides a trick lock and take valve of trick lock belongs to valve technical field. The valve solves the problems of low reliability and poor opening prevention performance of the valve with the locking function. It includes the lock body and connects in the trick lock box on lock body surface, and the lock body is upper end and seals lower extreme open-ended tubular structure, and the lock body is including the lamella body one and the lamella body two that can the above-mentioned tubular structure of amalgamation, is equipped with between lamella body one and the lamella body two to fix both mutually and receive the locking structure of trick lock box control, and the lower extreme inboard of lamella body one and/or lamella body two has the fender shoulder. The anti-opening device has the advantages of high reliability, good anti-opening performance, good universality and the like.

Description

Coded lock and valve with coded lock

Technical Field

The utility model belongs to the technical field of the valve, a trick lock and take valve of trick lock is related to.

Background

At present, valves having locking devices have been widely used in water supply lines, heating lines, or gas lines, which can be managed by community property or water companies. One of the valve structures with a locking device is a mechanical lock, such as a flanged ball valve with an on-off locking mechanism disclosed in patent application No. 201320250578.3, which can be locked by hanging the mechanical lock on the valve through changing the valve structure. The mechanical lock has the defects that the mechanical lock can be opened only by using a key, and when the number of the lock control valves is large and the key of each lock cannot be used universally, the mechanical lock is very unfavorable for centralized management.

The valve with locking device also has a structure adopting magnetic locking, for example, the magnetic locking valve disclosed in patent application No. 200920313315.6, which is characterized in that a valve body is connected with a locking cap, a magnetic locking mechanism is arranged between the locking cap and the valve body, the locking of the valve is realized by utilizing the magnetic locking mechanism, and a magnetic key which can be sleeved on the locking cap and can unlock the magnetic locking mechanism by means of magnetism is also arranged. Compared with the additionally-hung mechanical lock, the magnetic key can control the valves of the same type, the number of keys is reduced, and centralized management is facilitated to a certain extent. However, the magnetism of the magnetic component in the valve is weakened after long-term use, which results in lower reliability, and more importantly, a universal magnetic key which can be commonly used on various magnetic locking valves appears in the market at present, which results in weaker opening prevention.

Aiming at the problems of low reliability and poor unlocking prevention, one of the conventional technical means of the technical personnel in the field is to use a password type mechanical padlock instead of a mechanical lock unlocked by a key, and the mechanical lock has the same good unlocking prevention performance and does not need the key when being unlocked; still another is to integrate the structure of the combination lock directly into the valve, such as a combination lock valve disclosed in patent application No. 201320430411.5, a combination gate valve disclosed in patent application No. 201020607376.6, a combination lock of a valve disclosed in patent application No. 201210282803.1, and the like.

Disclosure of Invention

The utility model aims at the above-mentioned problem that prior art exists, provide trick lock and take the valve of trick lock, solved the low, poor problem of opening nature of area locking function valve reliability.

The purpose of the utility model can be realized by the following technical proposal:

the coded lock comprises a lock body and a coded lock box connected to the surface of the lock body, wherein the lock body is of a cylindrical structure with an upper end closed and a lower end opened, the coded lock is characterized in that the lock body comprises a first petal body and a second petal body which can be spliced into the cylindrical structure, a locking structure which can fix the first petal body and the second petal body and is controlled by the coded lock box is arranged between the first petal body and the second petal body, and a shoulder is arranged on the inner side of the lower end of the first petal body and/or the second petal body.

The coded lock is mainly applied to a valve to realize a locking function, for example, a common gate valve is used, a hand wheel connected to a valve rod of the gate valve is taken down firstly, then a first petal body is abutted against the outer side of the upper end of a valve body of the gate valve and ensures that the valve rod is positioned at the inner side of the first petal body, and then a second petal body and the first petal body are spliced and fixed through a locking structure, so that the first petal body and the second petal body are combined into a lock body with a cylindrical structure with the upper end closed and the lower end open, and a blocking shoulder at the inner side of the lower end of the first. Therefore, the valve rod is hidden in the lock body and cannot be operated, the pressing cap which is connected to the upper end of the valve body in a threaded mode is located in the lock body, the coded lock cannot be taken down from the valve body due to blocking of the pressing cap on the blocking shoulder, and the locking structure cannot be controlled to be opened under the condition that the correct password cannot be input into the coded lock box, so that the locking of the valve is achieved, and meanwhile the reliability of opening prevention and use is improved.

No matter a password type mechanical padlock or a password type mechanical lock body structure integrated on the valve is adopted, the valve structure needs to be greatly changed, so that the condition that the locking part cannot be separated from a special valve and is directly applied to a common valve is caused, namely the universality is poor. This trick lock neither directly integrates on the valve, does not require a pair of lockholes of matched with on the valve like the padlock simultaneously again, what adopt only wrap the valve rod through the concatenation mode and hide outside the valve body upper end to only need block the shoulder with the help of the structure of taking on the valve certainly and can make the trick lock directly take off from the valve, improved the commonality of this trick lock from this well.

In the coded lock, the blocking shoulder is arc-shaped.

When the connected valve is a gate valve, the arc shape enables a larger blocking area to be formed between the blocking shoulder and the pressing cap on the gate valve, so that the coded lock can be stably connected to the valve, and the opening prevention performance is further improved. When the connected valve is a ball valve, the valve rod of the valve extends out of the upper end of the valve body of the valve and is connected with a handle, and the upper end of the valve body is externally provided with a limiting block for limiting the rotation angle of the handle. The blocking shoulder is arranged to be arc-shaped, the arc-shaped shape enables the blocking shoulder to be effectively matched with the limiting block outside the upper end of the ball valve body, the coded lock can also be connected to an ordinary ball valve to achieve a locking function, and the universality of the coded lock is further improved. Except for a common gate valve or a common ball valve, the coded lock can be locked by adopting the structure which can be matched with the arc-shaped retaining shoulder on other common valves.

In the coded lock, the inner side of the lower end of the first petal body and the inner side of the lower end of the second petal body are respectively provided with a retaining shoulder, and when the first petal body and the second petal body form a lock body, the two retaining shoulders can be spliced into a circular ring-shaped structure.

The blocking shoulder on the inner side of the lower end of the petal body and the blocking shoulder on the inner side of the lower end of the petal body are spliced into a circular ring when the lock body is formed, so that the coded lock can be more stably connected with the valve, and the anti-opening effect is better.

In foretell trick lock, the lamella body one all be circular arc platelike with the lamella body two, the upper surface of the lamella body one links firmly circular roof or the upper end inboard of the lamella body one and the upper end inboard of the lamella body two all link firmly semi-circular baffle.

When the second petal body and the first petal body are spliced and fixed through the locking structure to form the lock body, the lock body can be in a cylindrical structure with the upper end closed and the lower end opened through the circular top plate or the combination of the two semicircular baffles fixedly connected to the upper surface of the first petal body, so that the valve rod exposed outside is hidden to realize locking, and the opening prevention performance is improved. This form not only ensures the normal locking function, but also makes the combination lock universal on the common valve.

In foretell trick lock, lamella body one and lamella body two be monolithic structure, perhaps the lamella body one includes main part one and links firmly in the connector one of main part one lower extreme, lamella body two includes main part two and links firmly in the connector two of main part two lower extremes, keep off the shoulder and locate on connector one and connector two.

The first valve body and the second valve body are arranged into a split structure, the valve with the same structure is mainly considered to have various specifications, and the coded lock mainly depends on the retaining shoulder to ensure that the coded lock cannot be directly taken down from the valve body, so that the size of the first main body and the size of the second main body are not limited by the specifications of the valve, namely, the first main body and the second main body can be directly produced in batches at one time, and therefore the production of enterprises is simpler.

In the coded lock, one side of the first petal body is hinged with one side of the second petal body, and the locking structure is positioned between the other sides of the first petal body and the second petal body. This arrangement facilitates both opening and closing of the lock body.

In the above coded lock, the locking structure comprises a lock tongue arranged in the first petal body in a sliding manner and a bayonet arranged on the second petal body, a lock hook extending out of the first petal body is arranged on the side part of the lock tongue, the lock tongue can enable the lock hook to be hooked on the side wall of the bayonet under the action of self elasticity or a supporting spring, and one end of the lock tongue penetrates out of the coded lock box and can limit the lock tongue to slide when the coded lock box is locked.

The lock tongue makes the latch hook collude on the lateral wall of bayonet socket under the effect of self elasticity or a supporting spring, and the trick lock box restricts the slip of lock tongue when locking simultaneously, just so can't make latch hook and bayonet socket throw off through pressing down the lock tongue, has realized the locking from this. When the coded lock box is unlocked, the sliding of the lock tongue is not limited any more, so that a manager can disengage the lock hook from the bayonet in a mode of pressing down the lock tongue, and the lock body can be opened and taken down from the valve body.

In foretell trick lock, the trick lock box include the shell and set up the lock core in the shell, the lock core is including ability pivoted locking wheel, be provided with the executive component that can move about between locking wheel and the spring bolt, the executive component is last to have the arch, locking wheel peripheral wall can push up the executive component through the arch and lock the spring bolt, locking wheel peripheral wall is equipped with the breach that can supply protruding embedding, the executive component has the trend to locking wheel activity all the time under the effect of self elasticity or an elastic component.

The peripheral wall of the locking wheel is contacted with the bulge to push the executing piece to lock the lock tongue, so that the lock tongue cannot be operated to prevent the lock body from being opened, and the locking function is realized. When the locking wheel rotates to the breach and protruding relative time, the executive component moves to the locking wheel and makes protruding embedding breach in under the effect of self elasticity effect or elastic component, and the executive component loosens the restriction to the spring bolt to make managers can operate in order to open the lock body to the spring bolt. The coded lock adopts the same locking principle as a conventional mechanical lock, and therefore, the coded lock also has the same opening prevention performance. And the execution piece and the locking wheel are both arranged in the coded lock box and are not related to the valve, so that the coded lock can be used universally on a common valve.

In the above coded lock, the housing comprises the circular top plate and a box cover connected to the circular top plate, the executing part is a V-shaped plate, the protrusion is a sharp corner on the executing part, the lower end of the executing part is connected to the circular top plate, so that the upper end of the executing part can swing, and when the peripheral wall of the locking wheel is in contact with the protrusion, the upper end of the executing part can act on the lock tongue along the horizontal direction.

The shell includes circular roof and connects the lid on circular roof, and circular roof links firmly in the upper end of lamella body one, means that the spring bolt slides along vertical direction and sets up, so through the locate mode of above-mentioned executive component on circular roof, just so enable executive component upper end and follow the horizontal direction and act on the spring bolt when arch and locking wheel periphery wall contact to make the spring bolt can not slide downwards and make latch hook and bayonet socket throw off. The adoption is along the horizontal direction direct action on the spring bolt that sets up along vertical direction slip, can form the restriction to the spring bolt lapse down very firmly when locking to the opening nature has further been improved.

In foretell trick lock, as another kind of technical scheme, the trick lock box be fixed in the external side of the lamella body and outside the trick lock box part stretches out the lamella body, the trick lock box includes the shell and sets up the lock core in the shell, the lock core is including ability pivoted locking wheel, be provided with the executive component that can move about between locking wheel and the shell diapire, the executive component is platelike, locking structure includes the locking groove of linking firmly perpendicularly in the executive component towards the flange on the shell bottom wall face and locating the two outsides of lamella body, be equipped with the arch on the executive component face locking wheel, locking wheel peripheral wall can withstand the executive component through the arch and make the flange insert the locking inslot, the locking wheel periphery wall is equipped with the breach, be equipped with return spring between shell diapire and the executive component.

When the locking wheel is rotated to enable the protrusion to be staggered with the notch, the outer side wall of the locking wheel pushes the actuating piece to compress the return spring, so that the convex plate penetrates through the bottom wall of the shell and is inserted into the locking groove to achieve locking. When the locking wheel is rotated to enable the protrusion to be embedded into the notch, the convex plate is automatically separated from the locking groove to achieve unlocking. This scheme makes trick lock can use with ordinary valve cooperation equally.

Take valve of trick lock, include the valve body, stretch out the valve rod of valve body upper end and connect in the trick lock of valve body upper end, valve body upper end lateral part be equipped with the convex part, the trick lock includes the lock body and connects in the trick lock box on lock body surface, the lock body is upper end closed lower extreme open-ended tubular structure, valve rod and convex part all are located the lock body, its characterized in that, the lock body including can the amalgamation into above-mentioned tubular structure's petal body one and petal body two, be equipped with between petal body one and the petal body two and can be fixed mutually and receive the locking structure of trick lock box control with both, the lower extreme inboard of petal body one and/or petal body two has the fender shoulder, keeps off the shoulder and is located the convex part below.

Compared with the prior art, this trick lock and take valve of trick lock have following advantage:

1. after the coded lock is connected to the valve body, the valve rod can be well hidden to realize the locking of the valve, the defect that the valve can be opened by adopting a master key or the magnetism is weakened does not exist, and the opening prevention performance and the use reliability are well realized;

2. the valve rod is hidden outside the upper end of the valve body only through a splicing mode bag, and the coded lock cannot be directly taken down from the valve only by blocking the shoulder with the help of a structure on the valve, so that the universality of the coded lock is well improved.

Drawings

Fig. 1 is a schematic diagram of a first embodiment of the combination lock.

FIG. 2 is a schematic view of the combination lock of the present embodiment when unlocked.

FIG. 3 is another perspective view of the combination lock of the present invention when it is unlocked.

Fig. 4 is a schematic view of the inside of a lock case in an embodiment of the present combination lock.

FIG. 5 is a schematic view of the combination lock between the actuator and the circular top plate.

Fig. 6 is a cross-sectional view of the locking wheel, the actuator and the bolt when the combination lock is locked according to the first embodiment of the combination lock.

Fig. 7 is a cross-sectional view of the locking wheel, the actuator and the bolt when the coded lock is unlocked in the first embodiment of the coded lock.

Fig. 8 is a schematic view of a locking bolt in the first embodiment of the combination lock.

Fig. 9 is a schematic view of a general gate valve.

FIG. 10 is a schematic view of a valve with a combination lock according to an embodiment.

Figure 11 is a schematic view of the combination lock of figure 10 after opening.

In the figure, 1, a lock body; 1a, a flap body I; 1a1, body one; 1a2, connector one; 1b, a second petal body; 1b1, body two; 1b11, bayonet; 1b2, connector two; 1c, a shoulder; 2. a combination lock box; 3. a latch bolt; 3a, a latch hook; 3b, a pressing part; 3c, a block-shaped body; 3c1, cavity; 4. a support spring; 5. a housing; 5a, a circular top plate; 5a1, support; 5a2, bump set; 5a3, guide bracket; 5a4, stop block; 5b, a box cover; 6. a lock cylinder; 7. locking wheels; 7a, a notch; 8. an executive component; 8a, a bulge; 9. an opening and closing torsion spring; 10. a support shaft; 11. a digit wheel; 12. a limiting spring; 13. a slider; 13a, an insert rod; 13b, a baffle; 14. a return spring; 15. a valve body; 16. a valve stem; 17. a convex portion; 18. a hand wheel; 19. and (4) a nut.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1, 2 and 3, the combination lock comprises a lock body 1 and a combination lock box 2 which can be controlled to be unlocked. The lock body 1 is a cylindrical structure with the upper end closed and the lower end opened, the lock body 1 comprises a first petal body 1a and a second petal body 1b which can be spliced into the cylindrical structure, and a locking structure which can fix the first petal body 1a and the second petal body 1b and is controlled by the coded lock box 2 is arranged between the first petal body 1a and the second petal body 1 b. The first flap body 1a and the second flap body 1b are both in the shape of circular arc plates, the first flap body 1a is hinged to one side of the second flap body 1b, the locking structure is arranged between the other sides of the first flap body 1a and the second flap body 1b, a retaining shoulder 1c is arranged on the inner side of the lower end of the first flap body 1a and/or the inner side of the lower end of the second flap body 1b, and the retaining shoulder 1c is arc-shaped. In this embodiment, the first petal body 1a and the second petal body 1b are semicircular, the inner side of the lower end of the first petal body 1a and the inner side of the lower end of the second petal body 1b are both provided with a shoulder 1c, and when the first petal body 1a and the second petal body 1b form the lock body 1, the two shoulders 1c can be spliced into a circular structure. The hinge joint of the first petal body 1a and the second petal body 1b is matched in a concave-convex mode and then is hinged by a pin shaft penetrating through the concave-convex matching position, the pin shaft is sleeved with an opening and closing torsion spring 9, and the second petal body 1b always has the trend of enabling the lock body 1 to be in an opening state under the elastic action of the opening and closing torsion spring 9.

The first flap body 1a can be integrally manufactured, or can be fixed after being manufactured in a split mode, and the form of the second flap body 1b needs to correspond to that of the first flap body 1 a. In this embodiment, as shown in fig. 2 and 3, the flap body 1a includes a main body 1a1 and a first connector 1a2 fixed to a lower end of the main body 1a1, the flap body 1b includes a main body two 1b1 and a second connector 1b2 fixed to a lower end of the main body two 1b1, the main body 1a1 is hinged to the main body two 1b1, and the first connector 1a2 and the second connector 1b2 are provided with a shoulder 1 c.

As shown in fig. 2, 3, 4 and 5, further, the coded lock box 2 is fixedly connected to the upper end of the flap body 1a, the coded lock box 2 includes a housing 5 and a lock cylinder 6 disposed in the housing 5, wherein the housing 5 includes a circular top plate 5a and a box cover 5b connected to the circular top plate 5a, the circular top plate 5a and the box cover 5b may be fastened or screwed or combined with each other, and the flap body 1a and the circular top plate 5a may be of an integral structure or fixed by glue or welding. The upper surface of the circular top plate 5a is provided with two oppositely arranged supports 5a1, the lock cylinder 6 comprises a support shaft 10 arranged on the two supports 5a1 and a locking wheel 7 sleeved on the support shaft 10, a digit wheel 11 is sleeved outside the locking wheel 7, and meshing teeth for enabling the digit wheel 11 and the locking wheel 7 to form circumferential fixation are arranged between the digit wheel 11 and the locking wheel 7. The number of the locking wheels 7 and the number wheels 11 is three, and each number wheel 11 is partially positioned on the upper end surface of the box cover 5b, so that a user can stir the number wheels 11 outside the box cover 5b to unlock. One end of the supporting shaft 10 is provided with a limiting ring, the other end of the supporting shaft 10 is provided with a limiting spring 12, one end of the limiting spring 12 abuts against the locking wheel 7 close to the limiting spring, the other end of the limiting spring 12 abuts against the corresponding support 5a1, and the three locking wheels 7 are positioned along the axial direction under the action of the limiting spring 12. The coded lock also has the function of changing the password, and the changing mode is the same as that of the traditional coded lock, and is not repeated herein.

As shown in fig. 2, fig. 3, fig. 4, and fig. 5, the locking structure includes a lock tongue 3 disposed in the flap body 1a in a sliding manner along the vertical direction and a bayonet 1b11 disposed on the flap body two 1b, the bayonet 1b11 is specifically located on the main body two 1b1, the lock tongue 3 is correspondingly provided with a lock hook 3a extending out of the flap body one 1a and disposed upward, a support spring 4 acting upward on the lock tongue 3 is disposed in the main body one 1a1 on the flap body one 1a so that the lock hook 3a can be hooked on the side wall of the bayonet 1b11, one end of the lock tongue 3 penetrates out of the coded lock case 2, and the coded lock case 2 can limit the lock tongue 3 from sliding when being locked. Specifically, the locking wheel 7 partially extends out of one side of the corresponding digit wheel 11, an actuating part 8 capable of moving is arranged between the locking wheel 7 and the bolt 3, a protrusion 8a is arranged on the actuating part 8, the protrusion 8a and the peripheral wall of the locking wheel 7 extending out of one side of the digit wheel 11 can be in contact with the protrusion 8a to push against the actuating part 8 to lock the bolt 3, a notch 7a capable of being embedded by the protrusion 8a is formed in the peripheral wall of the locking wheel 7, and the actuating part 8 always has a tendency of moving towards the locking wheel 7 under the action of self elasticity or an elastic part. The executive component 8 is a V-shaped plate, the protrusion 8a is a sharp corner on the executive component 8, the lower end of the executive component 8 is connected to the circular top plate 5a, so that the upper end of the executive component 8 can swing, and when the peripheral wall of the locking wheel 7 is in contact with the protrusion 8a, the upper end of the executive component 8 can act on the lock tongue 3 along the horizontal direction. Specifically, the actuator 8 is provided with a relief groove for allowing the three digit wheels 11 to partially pass through, the circular top plate 5a is provided with two pairs of projection groups 5a2, two sides of the lower end of the actuator 8 are correspondingly provided with projections, the two projections are respectively inserted into the two pairs of projection groups 5a2 from above, and the two projections can move in the pair of projection groups 5a2 so that the actuator 8 can swing.

As shown in fig. 4, 5, 6, 7 and 8, the upper end of the locking tongue 3 penetrates through the coded lock case 2, and the upper end of the locking tongue 3 is provided with a block-shaped pressing part 3 b. A limiting mechanism which can limit the bolt 3 to move downwards when the bulge 8a is contacted with the peripheral surface of the locking wheel 7 is arranged between the upper end of the actuating piece 8 and the bolt 3, wherein the limiting mechanism acts on the bolt 3 along the horizontal direction. The locking tongue 3 in the lock box 2 is provided with a block body 3c, the circular top plate 5a is provided with a guide bracket 5a3, and the block body 3c is clamped inside the guide bracket 5a 3. The block-shaped body 3c has a cavity 3c1 penetrating the lower end face of the block-shaped body 3c and a side wall of the block-shaped body 3c facing the guide bracket 5a3, and the slide block 13 is slidably disposed in the cavity 3c 1. The slide block 13 and the cavity 3c1 may be matched by forming a plurality of sliding grooves on the inner wall of the cavity 3c1, and correspondingly forming slide bars on the slide block 13, wherein the slide bars are arranged in the sliding grooves to realize sliding. One side of the sliding block 13, which is back to the guide support 5a3, is fixedly connected with an insertion rod 13a, the elastic element is a return spring 14 which is sleeved on the insertion rod 13a, the insertion rod 13a is inserted into the inner wall of the cavity 3c1, the sliding block 13 partially extends out of the cavity 3c1 under the elastic force action of the return spring 14 and abuts against the upper end of the actuating element 8, and the elastic force of the return spring 14 acts on the actuating element 8 through the sliding block 13 so that the actuating element 8 always forms a swinging trend. The limiting mechanism comprises a baffle 13b fixedly connected to the lower end face of the sliding block 13 and a stop block 5a4 arranged on the upper surface of the circular top plate 5a, the baffle 13b is located between one side wall of the guide support 5a3 and the stop block 5a4, the lower end face of the baffle 13b is higher than the upper surface of the circular top plate 5a under the action of the elastic force of the supporting spring 4, one side wall of the guide support 5a3 is higher than the lower end face of the baffle 13b, and when the protrusion 8a is in contact with the outer peripheral wall of the locking wheel 7, the executing piece 8 can push the sliding block 13 to slide until the baffle 13b is located above the stop block 5 a.

The working principle of the coded lock is as follows: as shown in fig. 7, when each digit wheel 11 rotates to the correct digit, the protrusion 8a of the actuating member 8 is inserted into the notch 7a of each locking wheel 7, and at this time, the slider 13 slides under the elastic force of the return spring 14 until the baffle 13b is located between one side wall of the guide bracket 5a3 and the stop block 5a4, that is, the latch 3 is in an operable state, the second petal 1b swings around the hinge point to be spliced with the first petal 1a, and each latch hook 3a is pressed to make the latch 3 slide downward against the action of the support spring 4 and then return upward to be hooked on each bayonet 1b11, so that the first petal 1a and the second petal 1b are fixed to form the lock body 1. Next, each digit wheel 11 is dislocated, as shown in fig. 6, each notch 7a is staggered from each protrusion 8a, so that the outer circumferential wall of each locking wheel 7 contacts with the protrusion 8a, at this time, the actuator 8 swings to push the slider 13 inward until the baffle 13b is located above the stopper 5a4, and thus the downward sliding of the latch tongue 3 is stopped by the stopper 5a4, so that the latch hook 3a cannot be separated from the notch 1b11, thereby achieving the locking. During unlocking, the digit wheels 11 are rotated again until the notches 7a are opposite to the protrusions 8a, the protrusions 8a are embedded into the notches 7a again to enable the baffle 13b to slide to be in the initial state, so that the lock tongue 3 is in the operable state again, and then the pressing portion 3b is pressed down to enable the first flap body 1a and the second flap body 1b to be separated to achieve unlocking.

As shown in fig. 10 and 11, the valve with the combination lock comprises a valve body 15, a valve rod 16 extending out of the upper end of the valve body 15 and the combination lock in the embodiment, wherein the combination lock is connected to the upper end of the valve body 15, a convex part 17 is arranged on the side part of the upper end of the valve body 15, the valve rod 16 and the convex part 17 are both positioned in the lock body 1, and a stop shoulder 1c is positioned below the convex part 17. The valve can be a common gate valve or a common ball valve, when the valve is a common gate valve, the convex part 17 of the common gate valve is a pressing cap which is in threaded connection with the upper end of the valve body 15 as shown in fig. 9, the upper end of the valve rod 16 of the common gate valve is also connected with a hand wheel 18 and a screw cap 19 which is in threaded connection with the upper end of the valve rod 16 and axially fixes the hand wheel 18 and the valve rod 16, the screw cap 19 and the hand wheel 18 are only required to be disassembled, then the first petal body 1a is wrapped outside the upper end of the valve body 15 in a mode that the blocking shoulder 1c at the lower end of the first petal body is clamped below the convex part 17, and finally the second petal body 1b and the first petal body 1a are fixed to form the lock body 1, so that the blocking shoulder 1c at the lower. In this state, the lock body 1 can be reopened only by rotating each digit wheel 11 to the correct number, so that the combination lock can be taken down from the valve body 15, and after the combination lock is taken down, the user only needs to sleeve the hand wheel 18 on the valve rod 16 again or use some conventional tools like a spanner to operate the valve. When the valve is a common ball valve, the upper end of the valve rod 16 is connected with a handle and a nut 19 which is in threaded connection with the upper end of the valve rod 16 and axially fixes the handle and the valve rod 16, the convex part 17 is a limiting block for limiting the rotation angle of the handle, the nut 19 and the handle are also only required to be disassembled, and then the coded lock can be connected on the common ball valve in the same way.

This take valve of trick lock adopts the convex part 17 of keeping off shoulder 1c and valve body 15 upper end on the trick lock to cooperate and realize the locking, because all have the structure that corresponds convex part 17 on the conventional valve, consequently mean to need not to change the structure of valve body 15 under the circumstances of realizing the locking, only need be used for on the valve to be connected with valve rod 16 handle or hand wheel 18 after pulling down just can make valve body 15 be connected with the trick lock, and adopt the valve to operate the valve from the handle of taking or hand wheel 18 or some conventional tools of similar spanner after the trick lock takes off.

Example two

The structure and principle of this embodiment are basically the same as those of the first embodiment, except that: in this embodiment, the limiting mechanism includes a slot on the block 3c and a fixture block protruding horizontally and disposed on the upper end of the actuating member 8, and when the locking wheel 7 rotates to the outer circumferential wall and abuts against the protrusion 8a, the fixture block can be inserted into the slot to fix the locking tongue 3. The lower end of the executive component 8 is hinged on the circular top plate 5a, and the elastic component is an unlocking torsion spring arranged at the hinged position of the executive component 8 and the circular top plate 5 a.

EXAMPLE III

The inner side of the upper end of the first petal body 1a and the inner side of the upper end of the second petal body 1b are fixedly connected with a semicircular baffle 13b, the coded lock box 2 is fixed on the outer side of the first petal body 1a, and part of the coded lock box 2 extends out of the first petal body 1a, the coded lock box 2 comprises a shell 5 and a lock cylinder 6 arranged in the shell 5, the lock cylinder 6 comprises a locking wheel 7 capable of rotating, an executive part 8 capable of moving is arranged between the locking wheel 7 and the bottom wall of the shell 5, the executive part 8 is plate-shaped, the locking structure comprises a convex plate vertically fixedly connected to the bottom wall surface of the executive part 8 facing the bottom wall of the shell 5 and a locking groove arranged on the outer side of the second petal body 1b, a bulge 8a is arranged on the surface of the executive part 8 facing the locking wheel 7, the outer peripheral wall of the locking wheel 7 can prop against the executive part 8 through the bulge 8a to enable the convex plate to be inserted into the locking groove.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (10)

1. Trick lock, including lock body (1) and connect in the trick lock box (2) on lock body (1) surface, lock body (1) be upper end closed lower extreme open-ended tubular structure, its characterized in that, lock body (1) including the lamella body one (1a) and the lamella body two (1b) that can the amalgamation become above-mentioned tubular structure, be equipped with between lamella body one (1a) and the lamella body two (1b) and fix both mutually and receive the locking structure of trick lock box (2) control, the lower extreme inboard of lamella body one (1a) and/or lamella body two (1b) has fender shoulder (1 c).

2. Combination lock according to claim 1, wherein the retaining shoulder (1c) is curved.

3. The combination lock of claim 2, wherein the inner side of the lower end of the first petal body (1a) and the inner side of the lower end of the second petal body (1b) are both provided with a retaining shoulder (1c), and when the first petal body (1a) and the second petal body (1b) form the lock body (1), the two retaining shoulders (1c) can be spliced into a circular ring-shaped structure.

4. The coded lock according to claim 3, characterized in that the first flap body (1a) and the second flap body (1b) are both arc-shaped plate-shaped, and the upper surface of the first flap body (1a) is fixedly connected with a circular top plate (5a) or the inner side of the upper end of the first flap body (1a) and the inner side of the upper end of the second flap body (1b) are both fixedly connected with a semicircular baffle.

5. The combination lock of claim 4, wherein the first petal (1a) and the second petal (1b) are of a unitary structure, or the first petal (1a) comprises a first main body (1a1) and a first connector (1a2) attached to the lower end of the first main body (1a1), the second petal (1b) comprises a second main body (1b1) and a second connector (1b2) attached to the lower end of the second main body (1b1), and the shoulder (1c) is disposed on the first connector (1a2) and the second connector (1b 2).

6. The combination lock of claim 4, wherein one side of the first petal body (1a) is hinged with one side of the second petal body (1b), and the locking structure is positioned between the first petal body (1a) and the other side of the second petal body (1 b).

7. The coded lock according to claim 6, wherein the locking structure comprises a lock tongue (3) slidably disposed in the first petal body (1a) and a bayonet (1b11) disposed on the second petal body (1b), a lock hook (3a) extending out of the first petal body (1a) is disposed on a side of the lock tongue (3), the lock tongue (3) can hook the lock hook (3a) on a side wall of the bayonet (1b11) under the action of self elasticity or a supporting spring (4), one end of the lock tongue (3) penetrates out of the coded lock case (2), and the coded lock case (2) can limit the lock tongue (3) from sliding when locked.

8. The coded lock according to claim 7, characterized in that the coded lock case (2) comprises a housing (5) and a lock cylinder (6) arranged in the housing (5), the lock cylinder (6) comprises a rotatable locking wheel (7), an actuating member (8) capable of moving is arranged between the locking wheel (7) and the lock tongue (3), the actuating member (8) is provided with a protrusion (8a), the peripheral wall of the locking wheel (7) can push against the actuating member (8) through the protrusion (8a) to lock the lock tongue (3), the peripheral wall of the locking wheel (7) is provided with a notch (7a) capable of being embedded by the protrusion (8a), and the actuating member (8) always has a tendency of moving towards the locking wheel (7) under the action of self elasticity or an elastic member.

9. The combination lock of claim 8, wherein the housing (5) comprises the circular top plate (5a) and a box cover (5b) connected to the circular top plate (5a), the actuating member (8) is a V-shaped plate, the protrusion (8a) is a sharp corner on the actuating member (8), the lower end of the actuating member (8) is connected to the circular top plate (5a) to enable the upper end of the actuating member (8) to swing, and the upper end of the actuating member (8) can act on the bolt (3) in a horizontal direction when the outer circumferential wall of the locking wheel (7) is in contact with the protrusion (8 a).

10. Valve with coded lock, including valve body (15), stretch out valve rod (16) and the coded lock of connecting in valve body (15) upper end of valve body (15), valve body (15) upper end lateral part be equipped with convex part (17), coded lock includes lock body (1) and connects coded lock box (2) on lock body (1) surface, lock body (1) is the upper end and seals the open-ended tubular structure of lower extreme, valve rod (16) and convex part (17) all are located lock body (1), characterized in that, lock body (1) including can amalgamate into above-mentioned tubular structure's lamella body one (1a) and lamella body two (1b), be equipped with between lamella body one (1a) and lamella body two (1b) and can fix both mutually and receive the locking structure of coded lock box (2) control, the lower extreme inboard of lamella body one (1a) and/or lamella body two (1b) has fender shoulder (1c), the retaining shoulder (1c) is positioned below the convex part (17).

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