Valve lock head structure with higher safety

Abstract

The utility model discloses a valve lock head structure with higher safety. The valve lock head structure comprises a valve cover, a valve bonnet, a valve rod and a hand wheel, the end part of the valve rod is rotationally connected with the hand wheel, a coded lock is arranged on the hand wheel, a sliding groove is further formed in the hand wheel, a key can be inserted into the hand wheel through the sliding groove, the hand wheel and the key are positioned, and an unlocking magnetic steel is arranged on the key; the key can be inserted into the sliding groove only when the password of the coded lock is correctly input, the key is located in the sliding groove in a matched mode, a positioning buckle is formed between the key and the valve rod, the unlocking magnetic steel on the key and the unlocking magnetic steel between the valve deck and the valve bonnet can correspondingly form repulsive acting force for unlocking, and the hand wheel rotates the valve rod through the key. According to the structure design between the coded lock and the key, the defects in the prior art are overcome, the anti-theft safety effect of the magnetic valve is better, the actual anti-theft effect is achieved, the hidden danger that an existing structure is prone to being stolen is avoided, and the structure can be used in cooperation with various valves in the market and is high in practical value.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, and in particular to a valve lock structure with higher safety. Background Art

[0002] Valves are widely used in pipeline transportation in various industries. When in use, the valve body is opened and closed by turning the handwheel on the valve to drive the valve stem to rotate; however, this conventional valve has no anti-theft effect, so a magnetic lock valve with an anti-theft effect has emerged. A magnetic steel lock is set between the valve cap and the valve cover of the magnetic lock valve. When in use, the key is buckled on the valve cap of the valve. Under the effect of the magnetic repulsion between the upper unlocking magnet in the key and the lower unlocking magnet between the valve cap and the valve cover, the lower unlocking magnet exerts pressure on the spring and completely retracts into the lower lock hole of the valve cover, so that the upper valve cover can rotate with the rotation of the opening key, and then drive the valve stem to rotate to open and close the valve body.

[0003] However, the existing magnetic lock method has a simple structure, strong versatility, and is easy to manufacture. In terms of anti-theft, ordinary magnetic opening keys can operate it, and even only a magnetic block needs to be used instead of a key to unlock the valve by utilizing the repulsion of the magnetic blocks. It is found that the anti-theft safety effect of the magnetic valve with the existing structure is not good. It can be said that it cannot really play an anti-theft effect. Whether it is the existing conventional valve or the magnetic lock valve, the anti-theft effect is not satisfactory. Therefore, it is very necessary to improve the defects of the existing valve structure. Summary of the invention

[0004] In order to solve the above technical problems, the utility model provides a valve lock structure with higher safety.

[0005] The utility model is implemented by the following technical scheme: a valve lock structure with higher safety, including a valve cover, a valve bonnet, a valve stem, and a handwheel; the end of the valve stem is rotatably connected with the handwheel, a password lock is arranged on the handwheel, and a slide groove is also arranged on the handwheel, a key can be inserted into the handwheel through the slide groove, and a positioning is formed between the two; the key can be inserted into the slide groove only when the password of the password lock is entered correctly, the key is matched in the slide groove, and a positioning buckle is formed between the key and the valve stem, and the handwheel rotates the valve stem through the key.

[0006] In the above-mentioned valve lock structure with higher security, an unlocking magnet is provided on the key, and the key is positioned in the slide groove of the handwheel and between the valve stem. At the same time, the unlocking magnet on the key can correspond to the unlocking magnet between the valve cover and the valve cap to form a repulsive force to unlock.

[0007] In the above-mentioned valve lock structure with higher security, a lock groove is provided on the hand wheel, the lock groove is communicated with the slide groove, the combination lock is fixedly installed in the lock groove, the combination lock has a lock tongue, the lock tongue extends into the slide groove, and when the password of the combination lock is entered correctly, the key can be pressed against the lock tongue and retreated to form a positioning buckle with the valve stem.

[0008] In the above-mentioned valve lock structure with higher safety, a slot is provided on the key, and a flat buckle portion is provided on the valve stem, and the key and the valve stem are positioned by the slot and the flat buckle portion.

[0009] In the above-mentioned valve lock structure with higher security, a support bar is provided at the slide groove, and the support bar plays a supporting role for the sliding of the key in the slide groove.

[0010] In the above-mentioned valve lock structure with higher safety, a positioning groove is provided on the key, and a positioning boss is provided on the valve stem. The positioning groove and the positioning boss cooperate to form a positioning for the sliding of the key.

[0011] In the above-mentioned valve lock structure with higher safety, a rotating connecting hole is provided on the handwheel, the end of the valve stem is located in the rotating connecting hole and is provided with a rotating groove, a screw pin is screwed on the side of the rotating connecting hole on the handwheel, and the screw pin is correspondingly located in the rotating groove.

[0012] In the above-mentioned valve lock structure with higher safety, the hand wheel is provided with an observation hole corresponding to the slide groove.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model positions and rotates the hand wheel and the valve stem, and at the same time a password lock is arranged on the hand wheel. The key can be inserted into the password lock only after the password is input correctly, so that the unlocking magnet on the key and the unlocking magnet between the valve cover and the valve bonnet can form a repulsive force to unlock the valve, and the hand wheel is turned to rotate the valve stem by the key. The structural design between the password lock and the key solves the defects existing in the prior art, so that the magnetic valve has a better anti-theft safety effect, plays a practical anti-theft role, and avoids the hidden danger of theft that is easy to exist in the existing structure. The utility model can be used in conjunction with various valves on the market, and has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an exploded view of the utility model;

[0016] Figure 2 , Figure 3 It is a three-dimensional diagram of the utility model in two different directions;

[0017] Figure 4 , Figure 5It is a cross-sectional view of the utility model in two different directions;

[0018] Figure 6 This is a schematic diagram of the hand wheel structure in the utility model;

[0019] Figure 7 It is a schematic diagram of the key structure in the utility model. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0021] Please combine Figure 1-7 A valve lock structure with higher safety in this embodiment includes a valve cover 1, a valve bonnet 2, a valve stem 3, and a handwheel 4; the end of the valve stem 3 is rotatably connected to the handwheel 4, a password lock 5 is arranged on the handwheel 4, and a slide groove 6 is also arranged on the handwheel 4, through which a key 7 can be inserted, and a positioning is formed between the two, and an unlocking magnet 8 is arranged on the key 7; the key 7 can be inserted into the slide groove 6 only when the password of the password lock 5 is correctly input, the key 7 is matched in the slide groove 6, and a positioning buckle is formed between the key 7 and the valve stem 3, and at the same time, the unlocking magnet 8 on the key 7 can correspond to the unlocking magnet between the valve cover 1 and the valve bonnet 2 to form a repulsive force to unlock, and the handwheel 4 rotates the valve stem 3 through the key 7.

[0022] Furthermore, a lock groove 9 is provided on the handwheel 4, and the lock groove 9 is communicated with the slide groove 6. The combination lock 5 is fixedly installed in the lock groove 9. The combination lock 5 has a lock tongue 10, and the lock tongue 10 extends into the slide groove 6. When the password of the combination lock 5 is input correctly, the key 7 can push against the lock tongue 10 and retreat to form a positioning buckle with the valve stem 3.

[0023] Furthermore, the key 7 is provided with a card slot 11 , and the valve stem 3 is provided with a flat card buckle portion 12 , and the key 7 and the valve stem 3 are positioned by the card slot 11 and the flat card buckle portion 12 .

[0024] Furthermore, a support bar 13 is provided at the slide groove 6, and the support bar 13 supports the sliding of the key 7 in the slide groove 6, which is convenient for use.

[0025] Furthermore, for the convenience of use, a positioning groove 14 is provided on the key 7, and a positioning boss 15 is provided on the valve stem 3. The positioning groove 14 cooperates with the positioning boss 15 to form a positioning for the sliding of the key.

[0026] Furthermore, the handwheel 4 is provided with a rotating connection hole 16 , the end of the valve stem 3 is located in the rotating connection hole 16 and is provided with a rotating groove 17 , and a screw pin 18 is screwed on the side of the rotating connection hole 16 on the handwheel 4 , and the screw pin 18 is correspondingly located in the rotating groove 17 .

[0027] Furthermore, the hand wheel 4 is provided with an observation hole 19 corresponding to and communicating with the slide slot 6, so as to facilitate observation and use.

[0028] The following is a further introduction to the use principle of this embodiment:

[0029] When in use, first enter the password to unlock the combination lock 5, then insert the key 7 into the slide 6, continue to push the key 7, the key 7 abuts against the lock tongue 10, so that the lock tongue 10 retreats, and then the key 7 continues to slide until the card slot 11 on it forms a positioning card with the flat card buckle part 12 on the valve stem 3. At this time, the positioning slot 14 cooperates with the positioning boss 15 to form a positioning. After the key slides into place, the unlocking magnet 8 on it and the unlocking magnet between the valve cover 1 and the valve cap 2 form a repulsive force to unlock, and finally turn the hand wheel 4 to rotate the valve stem 3 through the key 7. After the game is over, pull out the key and disrupt the password on the combination lock. It should be noted that: this structure can be used in conjunction with various conventional valves and magnetic lock valves on the market. It is not necessary to install the unlocking magnetic steel structure when cooperating with conventional valves. When cooperating with various valves, it is only necessary to change the size of the valve stem and the valve cover to be applicable, and the password of the combination lock can be reset at any time as needed, which is very convenient and highly safe.

[0030] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A valve lock structure with higher safety, comprising a valve cover (1), a valve bonnet (2), a valve stem (3), and a hand wheel (4); characterized in that: The end of the valve stem (3) is rotatably connected to the hand wheel (4), a combination lock (5) is provided on the hand wheel (4), and a slide groove (6) is also provided on the hand wheel (4), and the key (7) can be inserted into the hand wheel (4) through the slide groove (6), and a positioning is formed between the two; the key (7) can be inserted into the slide groove (6) only when the password of the combination lock (5) is correctly input, and the key (7) is matched in the slide groove (6) and forms a positioning buckle with the valve stem (3), and the hand wheel (4) rotates the valve stem (3) through the key (7).

2. A valve lock structure with higher safety according to claim 1, characterized in that: The key (7) is provided with an unlocking magnet (8), and the key (7) is positioned between the slide groove (6) of the hand wheel (4) and the valve stem (3). At the same time, the unlocking magnet (8) on the key (7) can correspond to the unlocking magnet between the valve cover (1) and the valve cap (2) to form a repulsive force to unlock.

3. A valve lock structure with higher safety according to claim 1 or 2, characterized in that: The hand wheel (4) is provided with a lock groove (9), the lock groove (9) is communicated with the slide groove (6), the combination lock (5) is fixedly installed in the lock groove (9), the combination lock (5) has a lock tongue (10), the lock tongue (10) extends into the slide groove (6), when the password of the combination lock (5) is correctly input, the key (7) can be pressed against the lock tongue (10) and retreated to form a positioning buckle with the valve stem (3).

4. A valve lock structure with higher safety according to claim 3, characterized in that: The key (7) is provided with a slot (11), and the valve stem (3) is provided with a flat buckle portion (12); the key (7) and the valve stem (3) are positioned via the slot (11) and the flat buckle portion (12).

5. A valve lock structure with higher safety according to claim 1 or 2, characterized in that: The slide groove (6) is provided with a support bar (13), and the support bar (13) plays a supporting role in the sliding of the key (7) in the slide groove (6).

6. A valve lock structure with higher safety according to claim 4, characterized in that: The key (7) is provided with a positioning groove (14), and the valve stem (3) is provided with a positioning boss (15). The positioning groove (14) and the positioning boss (15) cooperate to form a positioning for the sliding of the key.

7. A valve lock structure with higher safety according to claim 1 or 2, characterized in that: The hand wheel (4) is provided with a rotation connection hole (16), the end of the valve stem (3) is located in the rotation connection hole (16) and is provided with a rotation groove (17), and a screw pin (18) is screwed to the side of the rotation connection hole (16) on the hand wheel (4), and the screw pin (18) is correspondingly located in the rotation groove (17).

8. A valve lock structure with higher safety according to claim 3, characterized in that: The hand wheel (4) is provided with an observation hole (19) corresponding to and communicating with the slide groove (6).

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