Multi-rod type connection switch valve device

Abstract

The utility model discloses a multi-rod type connecting switch valve device which comprises a valve rod, a universal joint, a first extension rod, a second extension rod and a three-jaw wrench, the valve rod is detachably connected with the first extension rod, and the universal joint comprises a first connecting seat and a second connecting seat; according to the device, a three-jaw wrench is arranged, a ratchet wheel, a driving pawl and a check pawl of the three-jaw wrench are utilized to drive the whole three-jaw wrench to rotate so as to drive a valve of a valve well to be gradually closed, and then a valve rod, a universal joint, a first extension rod and a second extension rod are arranged, so that the three-jaw wrench can be operated remotely to close the valve; therefore, a worker does not need to climb down the valve well to close the valve of the valve well, the valve well is suitable for installing valve wells in different terrains, the overall structure is practical and reliable, and the operation process is simple, convenient and rapid.

Description

Technical Field

[0001] The utility model relates to the technical field of gas, in particular to a multi-rod connection switch valve device. Background Art

[0002] Currently, there are many types of buried valves in pipeline networks. Most require ground-based valve stems for opening and closing. One type of compass-type valve requires personnel to enter a valve well (a confined space) to operate the valve. Currently, gas shutoff operations or other operations involving the opening and closing of compass-type valves require access to a confined space. If emergency repairs require completing safety measures before entering a confined space and closing the valve, this can delay timely response, increase the risk of accidents, slow down accident control efforts, and endanger public safety. Publication No. CN203115255U discloses a gas valve opening and closing device comprising at least one main stem, a first bevel gear, two second bevel gears, a first rotating disc, and a second rotating disc. The two second bevel gears form a bevel gear transmission system that meshes perpendicularly with the first bevel gear, enabling transmission between the first and second rotating discs. This allows the valve to be opened and closed not only from the top via the first rotating disc but also from the side by rotating the second rotating disc. This device cannot operate valves located deeper in the valve well. Utility Model Content

[0003] In view of the deficiencies in the prior art, the present invention aims to provide a multi-rod connected switch valve device that is easy to operate.

[0004] To achieve the above-mentioned object, the present invention provides a solution as follows: a multi-rod connection switch valve device, comprising a valve stem, a universal joint, a first extension rod, a second extension rod, and a three-jaw wrench, wherein the valve stem is detachably connected to the first extension rod, the universal joint comprises a first connecting seat and a second connecting seat, one end of the first connecting seat is detachably connected to the first extension rod, and the other end is hinged to the second connecting seat, and the second connecting seat is detachably connected to the second extension rod;

[0005] The three-jaw wrench includes a connecting frame and three jaws, the connecting frame is rotatably connected to the three jaws, and the three jaws are arranged in a ring-shaped manner at intervals. A transmission connecting head is rotatably connected to the connecting frame, one end of the transmission connecting head is detachably connected to the second extension rod, and the other end is connected to a rotating plate, and a driving pawl is hinged on the rotating plate. A ratchet and a non-return pawl are rotatably connected in the connecting frame, and the driving pawl is inserted into the tooth groove of the ratchet. A leaf spring is provided in the connecting frame, and the leaf spring presses against the non-return pawl, and the leaf spring is used to push the non-return pawl into the tooth groove of the ratchet.

[0006] The beneficial effects of the utility model are: it can realize the rapid closing of the valve of the valve well, the device is provided with a three-jaw wrench, and utilizes the ratchet, driving pawl and check pawl of the three-jaw wrench to drive the entire three-jaw wrench to rotate, so as to drive the valve of the valve well to gradually close, and then by providing the valve stem, universal joint, first extension rod and second extension rod, it is possible to operate the three-jaw wrench to close the valve at a distance, so that there is no need for staff to climb down the valve well to close the valve of the valve well. It is suitable for installing valve wells in different terrains, the overall structure is practical and reliable, and the operation process is simple and quick.

[0007] Furthermore, a fixed connector is formed on one end of the valve stem, and a rotating rod is connected to the other end, and the rotating rod is perpendicular to the valve stem.

[0008] Furthermore, the first extension rod includes at least one first extension unit, and a plurality of the first extension units are connected in sequence front to back.

[0009] Furthermore, the first extension unit has a first connector formed at the front end and a first connection slot formed at the rear end. The first connector is configured to snap-fit ​​into the first connection seat or the first connection slot, and the first connection slot is configured to snap-fit ​​into the fixed connector. With the above structure, the present invention can be extended to a set length using multiple first extension units.

[0010] Furthermore, the first connecting seat is provided with a first connecting hole, and the first connecting head is snap-connected to the first connecting hole.

[0011] Furthermore, the second extension rod includes at least one second extension unit, and a plurality of the second extension units are connected in sequence front to back.

[0012] Furthermore, the front end of the second extension unit is formed with a second connector, and the rear end of the second extension unit is formed with a second connecting groove. The second connector is used to snap-fit ​​with the transmission connector or the second connecting groove, and the second connecting groove is used to snap-fit ​​with the second connecting seat. After adopting the above structure, the utility model can be extended to a set length by using multiple second extension units.

[0013] Furthermore, the second connecting seat is formed with a third connecting head, and the third connecting head is snap-connected to the second connecting groove.

[0014] Furthermore, the transmission connector is provided with a second connection hole, and the second connector is snap-connected to the second connection hole.

[0015] Furthermore, three rotating wheels are rotatably connected in the connecting frame, the three rotating wheels are arranged in a ring-like manner and spaced apart in sequence, and the outer side walls of the rotating wheels are connected to the clamping claws.

[0016] Furthermore, the clamping claw is in an L-shaped structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a side view of the overall structure of the utility model.

[0018] Figure 2 This is a top view of the present invention (the second extension rod and the three-jaw wrench are not shown).

[0019] Figure 3 It is a top view of the three-jaw wrench of the present utility model.

[0020] Figure 4 This is a bottom view of the ratchet of the present utility model.

[0021] Among them, 1 is the valve stem, 11 is the fixed connecting head, 12 is the rotating rod, 21 is the first connecting seat, 211 is the first connecting hole, 22 is the second connecting seat, 221 is the third connecting head, 3 is the first extension unit, 31 is the first connecting head, 32 is the second connecting groove, 4 is the second extension unit, 41 is the second connecting head, 42 is the second connecting groove, 51 is the connecting frame, 52 is the clamping claw, 521 is the rotating wheel, 53 is the transmission connecting head, 531 is the second connecting hole, 54 is the rotating plate, 55 is the driving pawl, 56 is the ratchet, 57 is the check pawl, and 58 is the leaf spring. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] See attached Figure 1 To the attached Figure 4As shown, a multi-rod connection switch valve device includes a valve stem 1, a universal joint, a first extension rod, a second extension rod, and a three-jaw wrench. The valve stem 1 is detachably connected to the first extension rod. The universal joint includes a first connecting seat 21 and a second connecting seat 22. One end of the first connecting seat 21 is detachably connected to the first extension rod, and the other end is hinged to the second connecting seat 22. The second connecting seat 22 is detachably connected to the second extension rod.

[0025] The three-jaw wrench includes a connecting frame 51 and three jaws 52. The connecting frame 51 is rotatably connected to the three jaws 52. The three jaws 52 are arranged in a ring-shaped manner. A transmission connector 53 is rotatably connected to the connecting frame 51. One end of the transmission connector 53 is detachably connected to the second extension rod, and the other end is connected to a rotating plate 54. A driving pawl 55 is hinged on the rotating plate 54. A ratchet 56 and a non-return pawl 57 are rotatably connected in the connecting frame 51. The driving pawl 55 is inserted into the tooth groove of the ratchet 56. A leaf spring 58 is provided in the connecting frame 51. The leaf spring 58 presses against the non-return pawl 57. The leaf spring 58 is used to push the non-return pawl 57 into the tooth groove of the ratchet 56.

[0026] In this embodiment, a fixed connector 11 is formed at one end of the valve stem 1 , and a rotating rod 12 is connected to the other end. The rotating rod 12 is perpendicular to the valve stem 1 .

[0027] In this embodiment, the first extension rod includes at least one first extension unit 3, and multiple first extension units 3 are connected in sequence front to back; a first connecting head 31 is formed at the front end of the first extension unit 3, and a first connecting groove 32 is opened at the rear end of the first extension unit 3. The first connecting head 31 is used to snap-connect to the first connecting seat 21 or the first connecting groove 32, and the first connecting groove 32 is used to snap-connect to the fixed connecting head 11.

[0028] In this embodiment, the first connecting seat 21 is provided with a first connecting hole 211, and the first connecting head 31 is snap-connected to the first connecting hole 211; the second extension rod includes at least one second extension unit 4, and multiple second extension units 4 are connected in sequence front to back; the front end of the second extension unit 4 is formed with a second connecting head 41, and the rear end of the second extension unit 4 is provided with a second connecting groove 42, the second connecting head 41 is used to snap-connect to the transmission connecting head 53 or the second connecting groove 42, and the second connecting groove 42 is used to snap-connect to the second connecting seat 22.

[0029] In this embodiment, the second connecting seat 22 is formed with a third connecting head 221 , and the third connecting head 221 is snap-connected to the second connecting groove 42 .

[0030] In this embodiment, the transmission connector 53 is provided with a second connection hole 531 , and the second connector 41 is snap-connected to the second connection hole 531 .

[0031] In this embodiment, three rotating wheels 521 are rotatably connected in the connecting frame 51 . The three rotating wheels 521 are arranged in a ring in sequence. The outer wall of the rotating wheel 521 is connected to the clamping jaw 52 . The clamping jaw 52 is in an L-shaped structure.

[0032] In this embodiment, the specific usage process is as follows: first, according to the internal structure of the valve well and the position of the valve, the number of the first extension units 3 and the number of the second extension units 4 are determined, one first extension unit 3 or multiple first extension units 3 are connected in sequence front to back to form a first extension rod, and one second extension unit 4 or multiple second extension units 4 are connected in sequence front to back to form a second extension rod, wherein the first connector 31 of the first extension unit 3 at the rear side is connected to the first connecting groove 32 of the first extension unit 3 at the front side until a first extension rod of a set length is formed, and the second connector 41 of the second extension unit 4 at the rear side is connected to the second connecting groove 42 of the second extension unit 4 at the front side until a second extension rod is formed;

[0033] At this time, the fixed connector 11 of the valve stem 1 is snap-connected to the first connecting groove 32 of the first extension unit 3 at the rearmost side, the first connector 31 of the first extension unit 3 at the frontmost side is snap-connected to the first connecting hole 211 of the first connecting seat 21, and then the third connector 221 of the second connecting seat 22 is snap-connected to the second connecting groove 42 of the second extension unit 4 at the rearmost side, and the second connector 41 of the second extension unit 4 at the frontmost side is snap-connected to the second connecting hole 531 of the transmission connector 53;

[0034] At this time, by swinging and adjusting the angle between the first connecting seat 21 and the second connecting seat 22, the handheld rotating rod 12 can be moved to the three-jaw wrench on the valve in the valve well, so that the three-jaw wrench 52 clamps the valve, and then the valve stem 1 is swung counterclockwise to drive the first extension rod, the universal joint, the second extension rod, and the three-jaw wrench to rotate, thereby driving the valve to rotate a certain angle until it is rotated to the maximum swing range of the hand;

[0035] Hold the rotating rod 12 and swing the valve stem 1 clockwise to drive the rotating plate 54 to rotate, so as to drive the driving pawl 55 to retreat clockwise. At this time, the leaf spring 58 presses and pushes the non-return pawl 57 to continue to insert into the tooth groove of the ratchet 56, so as to limit the clockwise rotation of the ratchet 56, so that the ratchet 56 can only rotate counterclockwise, so that the three-jaw wrench can only drive the valve to rotate in the closing direction. In this way, after the valve stem 1 swings clockwise to the maximum amplitude of the staff, the valve stem 1 is swung counterclockwise to drive the valve to gradually close;

[0036] Repeat the above operation until the valve is completely closed. It is suitable for closing the valve in an emergency. The whole operation process is simple.

[0037] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Any person skilled in the art may, without departing from the scope of the present invention, utilize the technical content disclosed above to make further possible variations and modifications to the present invention, or to modify the present invention into equivalent embodiments with equivalent variations. Therefore, any equivalent variations made in accordance with the principles of the present invention without departing from the scope of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A multi-rod connected switch valve device, comprising a valve stem (1), a universal joint, a first extension rod, a second extension rod, and a three-jaw wrench, characterized in that: The valve stem (1) is detachably connected to the first extension rod, and the universal joint comprises a first connection seat (21) and a second connection seat (22). One end of the first connection seat (21) is detachably connected to the first extension rod, and the other end is hinged to the second connection seat (22). The second connection seat (22) is detachably connected to the second extension rod. The three-jaw wrench comprises a connecting frame (51) and three clamping jaws (52). The connecting frame (51) is rotatably connected to the three clamping jaws (52). The three clamping jaws (52) are arranged in a ring-shaped manner. A transmission connector (53) is rotatably connected to the connecting frame (51). One end of the transmission connector (53) is detachably connected to the second extension rod, and the other end is connected to a rotating plate (54). A driving pawl (55) is hinged on the rotating plate (54). A ratchet (56) and a non-return pawl (57) are rotatably connected in the connecting frame (51). The driving pawl (55) is inserted into the tooth groove of the ratchet (56). A leaf spring (58) is provided in the connecting frame (51). The leaf spring (58) abuts against and presses the non-return pawl (57). The leaf spring (58) is used to push the non-return pawl (57) to insert into the tooth groove of the ratchet (56).

2. A multi-rod connected switch valve device according to claim 1, characterized in that: One end of the valve stem (1) is formed with a fixed connector (11), and the other end is connected to a rotating rod (12), wherein the rotating rod (12) is perpendicular to the valve stem (1).

3. The multi-rod connection switch valve device according to claim 1, characterized in that: The first extension rod comprises at least one first extension unit (3), and a plurality of the first extension units (3) are connected in sequence front to back.

4. The multi-rod connection switch valve device according to claim 3, characterized in that: A first connecting head (31) is formed at the front end of the first extension unit (3), and a first connecting groove (32) is formed at the rear end of the first extension unit (3). The first connecting head (31) is used for snap-fit ​​connection to the first connecting seat (21) or the first connecting groove (32), and the first connecting groove (32) is used for snap-fit ​​connection to the fixed connecting head (11).

5. The multi-rod connection switch valve device according to claim 4, characterized in that: The first connecting seat (21) is provided with a first connecting hole (211), and the first connecting head (31) is snap-connected to the first connecting hole (211).

6. The multi-rod connection switch valve device according to claim 1, characterized in that: The second extension rod comprises at least one second extension unit (4), and a plurality of second extension units (4) are connected in sequence front to back.

7. The multi-rod connected switch valve device according to claim 6, characterized in that: The second extension unit (4) has a second connector (41) formed at the front end, and a second connection slot (42) formed at the rear end. The second connector (41) is used for snap-fit ​​connection to the transmission connector (53) or the second connection slot (42), and the second connection slot (42) is used for snap-fit ​​connection to the second connection seat (22).

8. The multi-rod connection switch valve device according to claim 1, characterized in that: The second connecting seat (22) is formed with a third connecting head (221), and the third connecting head (221) is snap-connected to the second connecting groove (42).

9. The multi-rod connected switch valve device according to claim 7, characterized in that: The transmission connector (53) is provided with a second connection hole (531), and the second connector (41) is snap-connected to the second connection hole (531).

10. The multi-rod connected switch valve device according to claim 1, characterized in that: Three rotating wheels (521) are rotatably connected in the connecting frame (51), and the three rotating wheels (521) are arranged in a ring-like manner and spaced apart in sequence. The outer side walls of the rotating wheels (521) are connected to the clamping claws (52).

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