Partial‑rotation locking device

Abstract

Disclosed in the present invention is a partial‑rotation locking device, comprising a support frame, a locking structure arranged on the support frame, and a key matching the locking structure. The locking structure comprises a cam lock, a lock cylinder bolt, a chuck bolt, and a valve which are sequentially arranged from top to bottom; the valve is connected to an adapter; the chuck bolt is provided with a square slot adapted to the lock cylinder bolt; the outer side of the chuck bolt is provided with a first protrusion; the valve is provided with a rotation locking member; the rotation locking member is provided with a plurality of second protrusions; the key drives the chuck bolt and the lock cylinder bolt to rotate so as to lock or unlock a handle, such that the unlocked handle can be rotated to open or close the valve. The present invention is easy to install and flexible to operate, can provide multiple locking modes, and effectively reduces accidental touch and inadvertent operation.

Description

Partial rotation locking device TECHNICAL FIELD

[0001] The present application relates to the technical field of locking device, in particular to a partial rotation locking device. BACKGROUND

[0002] There are a large number of manually operated devices, such as valves, in the oil, chemical, power and high-risk manufacturing industries. Accidents caused by misoperation are common, and according to statistics, 70% of accidents in the oil and gas industry are caused by human operation errors. With the rapid development of modern industry, users hope to have a device that does not change or damage the original valve equipment and reduces human misoperation. Most of the existing small pipe diameter valves do not have valve limiting devices. These valves will mostly appear self-closing or self-opening phenomenon when installed on a pipe with large flow and high pressure, so a locking device is needed to prevent the valve from self-closing or self-opening and improve the reliability of the valve. SUMMARY

[0003] In view of the above-mentioned deficiencies existing at present, the present application provides a partial rotation locking device which can reduce misoperation and avoid the self-closing or self-opening of the valve.

[0004] To achieve the above-mentioned purpose, the embodiments of the present application adopt the following technical solutions:

[0005] A partial rotation locking device, comprising a support frame, a locking structure arranged on the support frame, and a key cooperating with the locking structure, characterized in that the locking structure comprises a cam lock, a lock cylinder lock tongue, a chuck lock tongue and a valve arranged in sequence from top to bottom, the valve is connected with an adapter, the chuck lock tongue is provided with a square groove matched with the lock cylinder lock tongue, the outer side of the chuck lock tongue is provided with a first protrusion, the valve is provided with a rotation locking piece, the rotation locking piece is provided with a plurality of second protrusions, the chuck lock tongue and the lock cylinder lock tongue are rotated by the key to lock or unlock the rotation locking piece, so that the unlocked rotation locking piece can be rotated to open or close the valve.

[0006] According to one aspect of the present application, the first protrusion comprises two first protrusions arranged symmetrically with respect to the center axis of the lock cylinder lock tongue.

[0007] According to one aspect of the present application, the first protrusion is an arc-shaped protrusion.

[0008] According to one aspect of the present application, the second protrusions are uniformly arranged on the rotation locking piece.

[0009] According to one aspect of the present application, the upper end of the cam lock is provided with a dust cover panel.

[0010] According to one aspect of the present application, the support frame is a sheet metal integrally formed support frame.

[0011] According to one aspect of the present application, the adapter comprises an upper locking sleeve and a lower locking sleeve, which are connected by threads.

[0012] According to one aspect of the present application, a sunken groove puller is arranged on the support frame.

[0013] According to one aspect of the present application, a handle is arranged on the rotary locking member.

[0014] According to one aspect of the present application, a pushing member extending downward to a second protrusion is arranged on one side of the handle.

[0015] The present application has the following advantages: through multiple locking modes, the handle is in an effective state of preventing accidental touch and random rotation; mechanical limiting is used to realize interlocking, which has high reliability and long service life and can be used in harsh conditions; the first protrusion is arranged in an arc shape to reduce component friction and prolong service life. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Fig. 1 is a first schematic view of the present application;

[0018] Fig. 2 is a second schematic view of the present application;

[0019] Fig. 3 is a structural schematic view of A-A direction in a locked state of the present application;

[0020] Fig. 4 is a structural schematic view of A-A direction in an unlocked state of the present application.

[0021] The names corresponding to the numbers in the drawings are as follows:

[0022] 1, key; 2, cam lock; 3, lock cylinder bolt; 4, sunken groove puller; 5, chuck bolt; 51, first protrusion; 6, support frame; 7, adapter; 71, upper locking sleeve; 72, lower locking sleeve; 8, rotary locking member; 81, second protrusion; 9, handle; 91, pushing member; 10, valve; 11, countersunk hexagonal screw; 12, hexagonal screw. DETAILED DESCRIPTION

[0023] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be clearly and completely described in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application. In the description of the present application, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top end", "bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the system or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0024] Embodiment one:

[0025] As shown in FIGS. 1-4, a partial rotary locking device includes a support frame 6, a locking structure arranged on the support frame 6, and a key 1 matched with the locking structure, the locking structure includes a cam lock 2, a cylinder lock bolt 3, a chuck lock bolt 5 and a valve 10 arranged in sequence from top to bottom, the valve 10 is connected with an adapter 7, the chuck lock bolt 5 is provided with a square groove matched with the cylinder lock bolt 3, the outer side of the chuck lock bolt 5 is provided with a first protrusion 51, the valve 10 is provided with a rotary locking piece 8, the rotary locking piece 8 is provided with a plurality of second protrusions 81, the chuck lock bolt 5 and the cylinder lock bolt 3 are rotated by the key 1 to lock or unlock the rotary locking piece 8, so that the unlocked rotary locking piece 8 can be rotated to open or close the valve 10. Through various locking modes, the handle 9 is in an effective state of preventing accidental touch and random rotation operation.

[0026] The device preferably uses 316 stainless steel, which has excellent corrosion resistance, atmospheric corrosion resistance and high temperature strength, so that the product can be used in harsh conditions.

[0027] In this embodiment, the cam lock 2 is an S-shaped cam lock.

[0028] In this embodiment, the rotation range of the key 1, the chuck lock bolt 5, the cylinder lock bolt 3 and the rotary locking piece 8 is 0-90°.

[0029] In this embodiment, the cylinder lock bolt 3 has two states of 0° and 90°, 0° is inserted into the key 1, and the key 1 is locked in the cylinder by rotating 90° clockwise.

[0030] In practical application, the upper end of the cam lock 2 is provided with a dust cover panel. The dust cover panel can prevent dust and be used for marking and customizing characters to meet the coding needs of customers for different equipment.

[0031] In the embodiment, the faceplate of the key 1 can also be engraved with the character content to meet the customer's coding requirements for different devices.

[0032] In the embodiment, the valve 10 is a small caliber valve 10.

[0033] In actual application, the support frame 6 is a sheet metal integrally formed support frame 6. Sheet metal integral forming makes the support frame 6 more stable in performance.

[0034] In actual application, the adapter 7 includes an upper locking sleeve 71 and a lower locking sleeve 72, which are connected by threads. The upper and lower locking sleeves 72 are tightened by an internal hexagonal screw 12 to form a hoop structure, which clamps the caliber end of the valve 10, facilitating adjustment and clamping and facilitating disassembly in a narrow space.

[0035] In actual application, the rotary locking piece 8 is sleeved with a handle 9.

[0036] In actual application, the support frame 6 is provided with a sunken groove pull tab 4. The chuck lock tongue 5 and the lock cylinder lock tongue 3 are adapted to linkage through a square slot, driving the chuck lock tongue 5 to rotate, and the sunken groove pull tab 4 is tightened by a countersunk internal hexagonal screw 11.

[0037] Method for use: when the key 1 is pulled out of the cam lock 2, the lock cylinder lock tongue 3 is in a locked state, and the chuck lock tongue 5 adapted to linkage is also in a locked state, so that the handle 9 is in an effective state of preventing accidental touch and random rotation. When the key 1 is inserted into the lock cylinder and rotated clockwise by 90°, the key 1 is locked inside the lock cylinder, so that the handle 9 is in an unlocked state, and the valve 10 can be opened and closed.

[0038] Embodiment two:

[0039] As shown in FIGS. 1-4, a partial rotary locking device includes a support frame 6, a locking structure arranged on the support frame 6, and a key 1 matched with the locking structure. The locking structure includes, from top to bottom, a cam lock 2, a lock cylinder lock tongue 3, a chuck lock tongue 5, and a valve 10. The valve 10 is connected with an adapter 7. The chuck lock tongue 5 is provided with a square slot matched with the lock cylinder lock tongue 3. The chuck lock tongue 5 is provided with a first protrusion 51 on the outside. The valve 10 is provided with a rotary locking piece 8, and the rotary locking piece 8 is provided with a plurality of second protrusions 81. The key 1 drives the chuck lock tongue 5 and the lock cylinder lock tongue 3 to rotate to lock or unlock the rotary locking piece 8, so that the unlocked rotary locking piece 8 can be rotated to open or close the valve 10. Through various locking modes, the handle 9 is in an effective state of preventing accidental touch and random rotation.

[0040] The device is preferably made of 316 stainless steel, which has excellent corrosion resistance, atmospheric corrosion resistance and high temperature strength, so that the product can be used in harsh conditions.

[0041] In this embodiment, the cam lock 2 is an S-shaped cam lock 2.

[0042] In this embodiment, the key 1, chuck lock tongue 5, lock cylinder lock tongue 3, and rotation range of rotary locking member 8 are 0-90°.

[0043] In this embodiment, the lock cylinder lock tongue 3 has two states of 0° and 90°, 0° insertion key 1, and 90° clockwise rotation of key 1 locked inside the lock cylinder.

[0044] In practical application, the first protrusion 51 includes two first protrusions 51 symmetrically arranged relative to the center axis of the lock cylinder lock tongue 3.

[0045] In practical application, the first protrusion 51 is an arc-shaped protrusion. By setting it to be arc-shaped, the friction of the component is reduced, and the service life is prolonged.

[0046] In practical application, the second protrusions 81 are uniformly arranged on the rotary locking member 8. The uniform arrangement of the second protrusions 81 is easy to be driven. In this embodiment, the number of second protrusions 81 is 4, and the intervals are equidistant.

[0047] In practical application, the upper end of the cam lock 2 is provided with a dust cover panel. The dust cover panel can prevent dust and be used for engraving and marking content customization to meet the coding needs of customers for different equipment.

[0048] In this embodiment, the panel of the key 1 can also be engraved with engraved content to meet the coding needs of customers for different equipment.

[0049] In this embodiment, the valve 10 is a small caliber valve 10.

[0050] In practical application, the support frame 6 is a sheet metal integrally formed support frame 6. Sheet metal integral forming makes the support frame 6 more stable in performance.

[0051] In practical application, the adapter 7 includes an upper locking sleeve 71 and a lower locking sleeve 72, and the upper locking sleeve 71 and the lower locking sleeve 72 are connected by threads. The upper and lower locking sleeves 72 are tightened by an internal hexagonal screw 12 to form a hoop structure, which clamps the caliber end of the valve 10, facilitating adjustment and clamping, and facilitating disassembly in a narrow space.

[0052] In practical application, the rotary locking member 8 is sleeved with a handle 9.

[0053] In practical application, one side of the handle 9 is provided with a pusher 91 extending downward to the second protrusion 81. The second protrusion 81 is easily driven by the pusher of the handle 9, thereby driving the rotary lock 8 to rotate.

[0054] In practical application, the support frame 6 is provided with the sunken groove pull 4. The chuck lock tongue 5 and the lock cylinder lock tongue 3 are adapted to linkage through the quadrilateral groove, thereby driving the chuck lock tongue 5 to rotate, and the sunken groove pull 4 is pulled tightly through the sunk head internal hexagonal screw 11.

[0055] Method for use: when the key 1 is pulled out of the cam lock 2, the lock cylinder lock tongue 3 is in the locked state, and the chuck lock tongue 5 adapted to linkage is also in the locked state, thereby making the handle 9 in the effective state of preventing accidental touch and random rotation. When the key 1 is inserted into the lock cylinder and rotated clockwise by 90°, the key 1 is locked inside the lock cylinder, thereby making the handle 9 in the unlocked state, and the valve 10 can be opened and closed.

[0056] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A partial rotation locking device comprising a support frame (6), a locking structure provided on the support frame (6) and a key (1) cooperating with the locking structure, characterized in that, The locking structure comprises, from top to bottom, a cam lock (2), a lock cylinder lock bolt (3), a chuck lock bolt (5) and a valve (10), the valve (10) is connected with an adapter (7), the chuck lock bolt (5) is provided with a square groove matched with the lock cylinder lock bolt (3), the chuck lock bolt (5) is provided with a first protrusion (51) on the outer side, the valve (10) is provided with a rotary locking piece (8), the rotary locking piece (8) is provided with a plurality of second protrusions (81), the chuck lock bolt (5) and the lock cylinder lock bolt (3) are rotated by the key (1) to lock or unlock the rotary locking piece (8), and then the unlocked rotary locking piece (8) can be rotated to open or close the valve (10).

2. A partial rotation locking device according to claim 1, wherein The first protrusion (51) comprises two first protrusions (51) which are symmetrically arranged with respect to the center axis of the lock cylinder lock bolt (3).

3. A partial rotation locking device according to claim 2, wherein The first protrusion (51) is an arc-shaped protrusion.

4. A partial rotation locking device according to claim 1, wherein The second protrusions (81) are uniformly arranged on the rotary locking piece (8).

5. A partial rotation locking device according to claim 1, wherein The upper end of the cam lock (2) is provided with a dust cover panel.

6. A partial rotation locking device according to claim 1, wherein The support frame (6) is a sheet metal integrally formed support frame (6).

7. A partial rotation locking device according to claim 1, wherein The adapter (7) comprises an upper locking sleeve (71) and a lower locking sleeve (72), and the upper locking sleeve (71) and the lower locking sleeve (72) are connected by threads.

8. A partial rotation locking device according to claim 4, wherein The rotary locking piece (8) is sleeved with a handle (9).

9. A partial rotation locking device according to claim 8, wherein One side of the handle (9) is provided with a pushing piece (91) extending downward to the second protrusion (81).

10. A partial rotation locking device according to any one of claims 1 to 9, wherein The support frame (6) is provided with a sunken groove pull tab (4).

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