A new magnetic force theft-proof handle

Abstract

The utility model discloses a novel magnetic theftproof handle, including tee and tee lower end insertion fixed valve stem, the upper end of tee is equipped with the top hole, and the inside corresponding top hole department is equipped with the inner groove, and screw no.

Description

Technical Field

[0001] This utility model relates to the field of valve fittings technology, and more specifically to a novel magnetic anti-theft handle. Background Technology

[0002] In industrial production and public welfare sectors, valves, as core control components in fluid transport systems, are widely used in critical industries such as petroleum, chemical, gas, water supply, heating, and power. Their operational status directly affects the safety, stability, and economy of pipeline systems. The handle, as the direct actuator for valve operation, is the key interface for valve opening and closing and flow regulation; its functional integrity and safety have a significant impact on the operation and maintenance management of the entire pipeline system.

[0003] Traditional valve handles often employ an integrated mechanical structure design, possessing only basic operational functions and lacking necessary anti-theft and anti-misoperation mechanisms. In high-risk industries such as petroleum and chemical processing, pipelines often transport flammable, explosive, toxic, and hazardous media, requiring strict adherence to operating procedures for valve opening and closing. Traditional handles lack protective designs, allowing unauthorized personnel to arbitrarily operate the valves out of curiosity or misjudgment, potentially causing direct property damage and endangering personnel lives, leading to public safety incidents. Furthermore, during regular valve inspections and maintenance, management personnel struggle to quickly identify unauthorized valve operations, necessitating additional manpower to check valve status and reducing management efficiency. Therefore, this invention proposes a novel magnetic anti-theft handle. Utility Model Content

[0004] The purpose of this utility model is to provide a new type of magnetic anti-theft handle, which can solve the problem of traditional valve handles lacking anti-theft function, realize the controlled management of valves, ensure pipeline safety, and reduce economic losses.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A novel magnetic anti-theft handle includes a three-way valve and a valve stem inserted and fixed at the lower end of the three-way valve. The upper end of the three-way valve has a top hole, and the inner side of the valve has an inner groove corresponding to the top hole. A screw is fixed in the inner groove and passes through the three-way valve and the upper end of the valve stem. A lock cylinder is provided in the shaft hole of the three-way valve. The lock cylinder has a pop-out pin. The inner wall of the three-way valve has a matching pin groove. The pin is inserted into the pin groove. The lock cylinder has a key that magnetically cooperates with the lock cylinder to control the return of the pin. An extension rod is detachably provided in the shaft hole of the three-way valve.

[0006] Furthermore, the lock cylinder sidewall has a mounting hole along the radial direction, the pin is disposed in the mounting hole, and a miniature compression spring is disposed in the mounting hole. One end of the miniature compression spring is fixed to the bottom of the mounting hole, and the other end is fixedly connected to the pin to push the pin out.

[0007] Furthermore, the mounting hole depth is divided into two sections: the first section is the ball movement section, the length of which is equal to the ball diameter, and the second section is the spring limiting section, the depth of which is slightly shorter than the ball diameter.

[0008] Furthermore, a permanent magnetic material block is embedded in the lock cylinder, a protrusion is provided on one side of the lock cylinder, a lock hole is axially opened on the protrusion, the key insertion end is made of permanent magnetic material, the key insertion end and the permanent magnetic material block are opposite magnetic poles, and the pin is made of iron or nickel alloy.

[0009] Furthermore, the bead groove on the inner wall of the shaft hole of the tee is an annular groove or a dot-shaped groove matching the number of marbles, and the groove cross-section is semi-circular with a diameter consistent with the diameter of the marbles.

[0010] Furthermore, the bead grooves are symmetrically arranged within the shaft holes of the tee.

[0011] Furthermore, at least two mounting holes are evenly spaced radially along the sidewall of the lock cylinder.

[0012] Furthermore, a key ring is connected to the lower end of the key.

[0013] Furthermore, it also includes a second screw, which is used to fix the extension rod and the tee.

[0014] Beneficial effects: This utility model constructs a double anti-theft barrier by using the pins of the lock cylinder to engage with the ball grooves of the tee, combined with the magnetic control of the key to retract the pins. This allows only authorized personnel with the appropriate key to unlock and operate the valve, effectively preventing unauthorized personnel from arbitrarily opening, adjusting, or damaging the valve. This fundamentally avoids safety accidents caused by unauthorized operations, protecting the lives and property of personnel. Simultaneously, the anti-theft design with a key prevents unauthorized personnel from disassembling the handle or damaging valve components, thus serving an anti-theft function. It also reduces equipment maintenance frequency and replacement costs, extends the overall service life of the valve, reduces economic losses due to equipment failures such as production stoppages and emergency repairs, and improves the operational efficiency and economy of the pipeline system. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the three-way valve, valve stem, and lock cylinder of this utility model; Figure 4 This is a schematic diagram of the three-way structure of this utility model; Figure 5 This is a schematic diagram of the cross-sectional structure of the three-way valve of this utility model; Figure 6 This is a schematic diagram of the lock cylinder structure of this utility model; Figure 7 This is a schematic diagram of a partial cross-sectional structure at the lock cylinder mounting hole of this utility model.

[0017] Reference numerals: 1. Valve stem; 2. Screw one; 3. Tee; 301. Top hole; 302. Inner groove; 4. Lock cylinder; 401. Protrusion; 5. Key ring; 6. Key; 7. Extension rod; 8. Screw two; 9. Tumbler; 10. Shaft hole; 11. Bead groove; 12. Lock hole; 13. Permanent magnetic material block; 14. Mounting hole; 141. First section; 142. Second section; 15. Miniature compression spring. Detailed Implementation

[0018] like Figures 1 to 3 As shown in the specific embodiment, a novel magnetic anti-theft handle includes a three-way valve 3 and a valve stem 1 inserted and fixed at the lower end of the three-way valve 3. The upper end of the three-way valve 3 is provided with a top hole 301, and the inner side is provided with an inner groove 302 corresponding to the top hole 301. A screw 2 is fixed in the inner groove 302 and passes through the three-way valve 3 and the upper end of the valve stem 1, so that when the lock cylinder 4 is fixed inside, it is difficult for unauthorized personnel to separate the valve stem 1 and the three-way valve 3 at will, which effectively fixes the valve stem 1 and the three-way valve 3. The inner groove 302 can reserve a channel for the subsequent assembly of the lock cylinder 4 and the extension rod 7.

[0019] like Figure 3 , Figure 6 and Figure 7 As shown, a lock cylinder 4 is installed inside the shaft hole 10 of the tee 3. The lock cylinder 4 has a cylindrical structure, and its overall dimensions are precisely matched with the shaft hole 10 of the tee 3. The lock cylinder 4 can be freely inserted and removed within the shaft hole 10 without radial wobble. The lock cylinder 4 is equipped with ejectable pins 9. At least two mounting holes 14 are evenly spaced along the radial direction of the side wall of the lock cylinder 4. This invention allows for the increase of the number of pins 9 as needed. The more pins 9 there are, the higher the complexity of the magnetic engagement of the key 6, resulting in a stronger anti-theft level. It can adapt to different anti-theft needs, from ordinary civilian use to high-risk industrial applications. The pins 9 are located within the mounting holes 14, and a miniature compression spring 15 is installed within the mounting holes 14, with one end of the miniature compression spring 15 fixed to the mounting hole 14. The bottom of the hole is fixedly connected to the pin 9 at the other end to push the pin 9 out. The mounting hole 14 is divided into two sections. The first section 141 is the moving section of the pin 9, and its length is equal to the diameter of the pin 9. The second section 142 is the spring limiting section, and its depth is slightly shorter than the diameter of the pin 9. The two-section depth of the mounting hole 14 for the pin 9 is clearly defined, which ensures that the pin 9 can be fully retracted into the lock cylinder 4 so that it does not jam when unlocking. It also avoids the micro compression spring 15 from being over-compressed or dislodged when it pops out. From the perspective of size details, it ensures that the popping and retraction of the pin 9 is smooth.

[0020] like Figure 3 , Figure 4 and Figure 5 As shown, the inner wall of the T-junction 3 is provided with a bead groove 11, into which the pins 9 are inserted. The bead groove 11 on the inner wall of the shaft hole 10 of the T-junction 3 is either an annular groove or a dotted groove matching the number of pins 9. There are two options: annular groove and dotted groove. The annular groove is suitable for multiple pins 9 to be engaged at the same time, which is more secure. The dotted groove is suitable for a specific number of pins 9, which is simpler in structure. It can be flexibly selected according to the application scenario to improve the product's adaptability. The groove cross-section is semi-circular, and the diameter is the same as the diameter of the pins 9. The bead groove 11 is symmetrically arranged in the shaft hole 10 of the T-junction 3. The symmetrical arrangement of the bead groove 11 allows the lock cylinder 4 to be inserted into the shaft hole 10 of the T-junction 3 from either side to achieve fixation, without distinguishing the insertion point.

[0021] like Figures 1 to 3 As shown, the lock cylinder 4 is equipped with a key 6 that magnetically engages with the lock cylinder 4 to control the retraction of the pin 9. A key ring 5 is connected to the lower end of the key 6. The key ring 5 effectively solves the problems of easy loss and difficult management, improving the user experience. A protrusion 401 is provided on one side of the lock cylinder 4. The protrusion 401 limits the movement distance of the lock cylinder 4 when inserted into the tee 3, allowing the pin 9 to quickly align with the pin groove 11. A lock hole 12 is axially formed on the protrusion 401. The cross-sectional shape and size of the insertion end of the key 6 perfectly match the lock hole 12 of the lock cylinder 4, ensuring compatibility with only the key. The key 6 can be inserted into the lock hole 12, thereby enabling exclusive access control for the key 6. This clearly defines the valve operation subject as authorized groups such as managers and inspectors, making the valve operation process systematic and traceable. This solves the management chaos caused by the lack of authorization distinction in traditional handles. At the same time, it can prevent unauthorized personnel from disassembling the handle and damaging valve components, and also serves as an anti-theft measure. It can also reduce the frequency of equipment maintenance and replacement costs, extend the overall service life of the valve, reduce economic losses such as production stoppages and emergency repairs caused by equipment failures, and improve the operation and maintenance efficiency and economy of the pipeline system.

[0022] The lock cylinder 4 is embedded with a permanent magnetic material block 13. The key 6 insertion end is made of permanent magnetic material. The key 6 insertion end and the permanent magnetic material block 13 are opposite magnetic poles. The pin ball 9 is made of iron or nickel alloy. The setting of opposite magnetic poles can work with the key 6 to achieve double anti-theft. Non-compatible keys 6 (such as ordinary magnets or irregularly shaped metal rods) cannot trigger the pin ball 9 to retract, effectively resisting the cracking and interference of non-special tools. The anti-theft level is far higher than that of traditional mechanical protection.

[0023] By using the core structure of the lock cylinder 4's pin 9 engaging with the ball groove 11 of the tee 3, combined with the magnetic control of the key 6 to retract the pin 9, a double anti-theft barrier is constructed. Only authorized personnel with the matching key 6 can unlock and operate the valve, effectively preventing unauthorized personnel from arbitrarily opening, adjusting, or damaging the valve. This fundamentally avoids safety accidents such as media leakage, abnormal pipeline pressure, and equipment damage caused by unauthorized operations. It is especially suitable for the safety protection needs of high-risk fields such as petroleum, chemical, and gas industries, ensuring the safety of personnel and property.

[0024] like Figure 1 and Figure 2 As shown, the extension rod 7 is detachably installed in the shaft hole 10 of the tee 3. The screw 8 is used to fix the extension rod 7 and the tee 3, thereby connecting the extension rod 7 and the valve stem 1. This prevents the extension rod 7 from loosening when operating the valve, ensures the effective transmission of force during authorized operation, and avoids operational errors or equipment damage caused by the loosening of the extension rod 7.

[0025] Working principle: This utility model achieves the switching between anti-theft and operation based on the extension and retraction of the pin 9 controlled by magnetic force. The specific principle is as follows: Regarding the reset drive of the lock cylinder 4 and the pin 9, the lock cylinder 4 has a cylindrical structure with a mounting hole 14 for the pin 9 radially opened on the side wall. A miniature compression spring 15 and the pin 9 are pre-installed in the hole. Under normal conditions, when no key 6 is inserted, the miniature compression spring 15 is in a naturally extended state, generating a radial thrust, which pushes the pin 9 outward from the lock cylinder 4. The protruding end of the pin 9 is precisely inserted into the matching bead groove 11 on the inner wall of the shaft hole 10 of the tee 3, forming an axial limit between the lock cylinder 4 and the tee 3, restricting the movement of the lock cylinder 4; Regarding the magnetic unlocking mechanism of the key 6, the insertion end of the key 6 is perfectly matched with the cross-sectional shape and size of the lock hole 12 of the lock cylinder 4, and the lock cylinder 4 is embedded with a permanent magnetic material block 13 and the insertion end of the key 6 is a permanent magnetic material, which are opposite magnetic poles. When the key 6 is fully inserted into the keyhole 12, the opposite magnetic poles generate a radial attraction force. This attraction force is greater than the thrust of the miniature compression spring 15, causing the pin 9 to retract along the mounting hole 14 into the lock cylinder 4 until the protruding end of the pin 9 is flush with the side wall of the lock cylinder 4, disengaging from the bead groove 11 of the tee 3, thus releasing the limiting relationship between the lock cylinder 4 and the tee 3. At this time, the lock cylinder 4 can be removed from the shaft hole 10 of the tee 3. Regarding the dual protection of the structure, when the lock cylinder 4 is not removed, its side wall blocks the screw 12 that fixes the tee 3 and the valve stem 1. Unauthorized personnel cannot access the screw 12 to disassemble the tee 3. Only after the lock cylinder 4 is removed can the extension rod 7 be inserted, and the extension rod 7 and the valve stem 1 are connected by the screw 28 to realize valve operation. This forms an anti-theft barrier from the aspects of restricting the operating parts and blocking the disassembly parts.

[0026] Regarding the operating procedures, in the initial anti-theft state, the lock cylinder 4 is completely placed within the shaft hole 10 of the tee 3. The pin 9 is ejected by the push of the miniature compression spring 15 and engages in the pin groove 11 of the tee 3. The lock cylinder 4 cannot move axially. Screw 2 is fixed to the inner groove 302 of the tee 3, passing through the tee 3 and the valve stem 1, thus connecting the tee 3 and the valve stem 1. Screw 2 is obstructed by the lock cylinder 4 and cannot be disassembled. Unauthorized personnel without the matching key 6 cannot retract the pin 9 or remove the lock cylinder 4, thus preventing them from operating the valve or disassembling the handle components, avoiding arbitrary operation or damage. During the unlocking preparation stage, authorized personnel can align the insertion end of the key 6 with the keyhole 12 of the lock cylinder 4 and slowly push it in until the bottom of the key 6 abuts against the bottom of the keyhole 12. The opposite magnetic poles of the key 6 and the lock cylinder 4 generate an attraction force, overcoming the push of the miniature compression spring 15. The pin 9 slides along the mounting hole 14 into the lock cylinder 4 until it is fully retracted into the mounting hole 14, releasing the lock cylinder 4 from its confinement to the tee 3. Pull the key 6 to one side to remove the lock cylinder 4 from the shaft hole 10 of the tee 3. The shaft hole 10 of the tee 3 is now fully open, making room for the subsequent insertion of the extension rod 7. The valve can then be operated. The authorized personnel can insert one end of the extension rod 7 into the shaft hole 10, align the screw 8 with the threaded hole of the extension rod 7, and tighten it clockwise until the screw 8 is fixed to the tee 3, thus fixing the extension rod 7 to the tee 3 and, consequently, to the valve stem 1, preventing the extension rod 7 from loosening or shifting during operation. The authorized personnel can rotate the gripping end of the extension rod 7, causing the valve stem 1 to rotate synchronously, thus opening or closing the valve or regulating the flow. For resetting, simply remove the extension rod 7, align the lock cylinder 4 with the top hole 301 of the tee 3, and insert it into the shaft hole 10, ensuring that the mounting hole 14 of the lock cylinder 4's ball bearing 9 is axially aligned with the ball groove 11 of the tee 3. Pull the key 6 outwards, and the key 6 separates from the magnetic material block of the lock cylinder 4. The magnetic field disappears, the miniature compression spring 15 returns to its extended state, pushes the pin 9 to pop out again and lock into the three-way pin slot 11, the lock cylinder 4 is restricted again, the screw 12 is blocked by the lock cylinder 4, and the handle returns to the initial anti-theft state.

[0027] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A new magnetic theft-proof handle, characterized by, Includes a tee (3) and a valve stem (1) fixedly inserted at the lower end of the tee (3). The upper end of the tee (3) is provided with a top hole (301), and the inner side is provided with an inner groove (302) corresponding to the top hole (301). A screw (2) is fixed in the inner groove (302) and passes through the tee (3) and the upper end of the valve stem (1). A lock cylinder (4) is provided in the shaft hole (10) of the tee (3). A pop-out ball (9) is provided on the lock cylinder (4). The inner wall of the tee (3) is provided with a matching ball groove (11). The ball (9) is inserted into the ball groove (11). A key (6) is provided on the lock cylinder (4) to control the ball (9) to retract in a magnetically cooperating manner. An extension rod (7) is detachably provided in the shaft hole (10) of the tee (3).

2. A new magnetic anti-theft handle according to claim 1, characterized in that, The lock cylinder (4) has a mounting hole (14) radially opened on its side wall. The pin (9) is located in the mounting hole (14). A miniature compression spring (15) is provided in the mounting hole (14). One end of the miniature compression spring (15) is fixed to the bottom of the mounting hole (14), and the other end is fixedly connected to the pin (9) to push the pin (9) to pop out.

3. A new magnetic anti-theft handle according to claim 2, characterized in that, The mounting hole (14) is divided into two sections. The first section (141) is the movable section of the ball (9), and its length is equal to the diameter of the ball (9). The second section (142) is the spring limiting section, and its depth is slightly shorter than the diameter of the ball (9).

4. A novel magnetic anti-theft handle according to claim 3, characterized in that, The lock cylinder (4) is embedded with a permanent magnetic material block (13). The lock cylinder (4) has a protrusion (401) on one side. The protrusion (401) has a lock hole (12) axially opened on the protrusion (401). The key (6) insertion end is made of permanent magnetic material. The key (6) insertion end and the permanent magnetic material block (13) are opposite magnetic poles. The marble (9) is made of iron or nickel alloy.

5. A new magnetic anti-theft handle according to claim 4, characterized in that, The bead groove (11) on the inner wall of the shaft hole (10) of the tee (3) is an annular groove or a dot-shaped groove matching the number of marbles (9). The groove cross section is semi-circular and the diameter is the same as the diameter of the marbles (9).

6. A new magnetic anti-theft handle according to claim 5, characterized in that, The bead groove (11) is symmetrically arranged in the shaft hole (10) of the tee (3).

7. A new magnetic anti-theft handle according to claim 6, characterized in that, At least two mounting holes (14) are evenly spaced radially along the side wall of the lock cylinder (4).

8. A new magnetic theft-proof handle according to claim 1, characterized in that, The lower end of the key (6) is connected to a key ring (5).

9. A new magnetic theft-proof handle according to claim 1, characterized in that, It also includes a second screw (8) for fixing the extension rod (7) and the tee (3).

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