Foldable valve hand wheel

Abstract

A foldable valve hand wheel belongs to the technical field of valve operating components and comprises a connecting shaft, a main wheel is fixedly mounted at the top of the connecting shaft, auxiliary wheels are arranged on two sides of the outer surface of the main wheel, and four fixing structures are fixedly mounted at the tops of the main wheel and the two auxiliary wheels; when the device needs to be unfolded, the auxiliary wheels on the two sides are turned upwards to be flush with the main wheel, then the four hinge plates are turned upwards to be separated from the positioning beans, the hinge plates are slid to drive the threaded rods to slide out of the first fixing base through the limiting plates and be inserted into the penetrating groove holes, and after the threaded rods penetrate out of the penetrating groove holes, the device is unfolded. When the auxiliary wheels on the two sides are rotated, the hinge plate is folded again to cover the left positioning bean to form primary fixation, then the four threaded pipes are sequentially rotated into the threaded sleeve plate, and due to the fact that the threaded grooves are formed in the outer surfaces and the inner grooves of the threaded pipes, when the threaded pipes are rotated, the threaded pipes can be screwed and fixed to the threaded sleeve plate and the threaded rods, and therefore complete fixation of the auxiliary wheels on the two sides is completed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of valve operating components, in particular to a foldable valve hand wheel. BACKGROUND

[0002] Manual valves are control components in pipeline fluid conveying systems, which are used to change the passage section and the direction of medium flow, and have the functions of flow guiding, cutting off, regulating, throttling, non-return, dividing, or overflow pressure relief. Valves for fluid control have nominal diameters ranging from extremely small instrument valves to industrial pipeline valves with diameters up to 10 m. Valves can act as required under the action of pressure, temperature or other forms of sensing signals, or simply open or close without relying on sensing signals. Valves rely on driving or automatic mechanisms to make the opening and closing parts move up and down, slide, swing or rotate, thereby changing the size of their flow passages to achieve their control functions.

[0003] In the field of valve operation, traditional valve hand wheels are mostly fixed structures. In some space-limited installation environments (such as narrow pipe wells, densely arranged equipment areas, etc.), fixed hand wheels are easy to interfere with surrounding objects and passages, not only affecting normal valve operation, but also possibly damaging the hand wheel or surrounding equipment due to collision; and during valve transportation and storage, fixed hand wheels occupy a large space, increasing packaging and transportation costs, and there is also a risk of hand wheel deformation and damage due to external collision, which cannot meet the diversified and refined valve use requirements. Based on the existing technical deficiencies, the present application designs a foldable valve hand wheel. SUMMARY

[0004] The present application provides a foldable valve hand wheel, which has the advantages of flexible switching of hand wheel folding storage and unfolding operation, solving the problems of space interference and inconvenience of transportation and storage of fixed hand wheels.

[0005] The present application provides the following technical scheme: a foldable valve hand wheel, comprising a connecting shaft, a main wheel fixedly installed at the top of the connecting shaft, a pair of auxiliary wheels arranged on the outer surface of the main wheel, and four fixed structures fixedly installed at the top of the main wheel and the two auxiliary wheels; the four fixed structures comprise a first fixed seat and a second fixed seat, a sliding groove is formed in the interior of each of the four first fixed seats, a positioning bean is fixedly installed at the top of each of the four sliding grooves, a threaded rod is movably installed in the interior of each of the four first fixed seats, a limiting plate is fixedly installed at the top of each of the four threaded rods, a hinged plate is hingedly installed in the interior of each of the four limiting plates, a through slot is formed in the interior of each of the four second fixed seats, a threaded sleeve plate is fixedly installed on one side of the outer surface of each of the four second fixed seats, and a threaded tube is screwedly installed in the interior of each of the four threaded sleeve plates.

[0006] As a preferred technical scheme of the present application, the outer surface and the inner groove of the four threaded pipes are provided with threaded grooves, and the outer surface of the four threaded pipes is provided with an inner hexagonal groove.

[0007] As a preferred technical scheme of the present application, the four first fixing bases are symmetrically welded at the top of the main wheel, the four second fixing bases are symmetrically welded at the top of the auxiliary wheel, and the four hinge plates are connected with the positioning beans.

[0008] As a preferred technical scheme of the present application, the bottom of the main wheel is symmetrically provided with four groups of hinge seats, the inside of the four groups of hinge seats is hingedly provided with connecting pieces, and the end of the four connecting pieces is fixedly connected with the two auxiliary wheels.

[0009] As a preferred technical scheme of the present application, the outer surface of the connecting shaft is fixedly provided with a fixing ring, and the inside of the fixing ring is symmetrically provided with two magnetic attraction plates.

[0010] As a preferred technical scheme of the present application, the bottom of the two auxiliary wheels is fixedly provided with arc groove plates, and the two arc groove plates are magnetically connected with the magnetic attraction plates.

[0011] As a preferred technical scheme of the present application, the outer surface of the connecting shaft is provided with fixed threads on both sides, and the two fixed threads are connected with peripheral equipment.

[0012] As a preferred technical scheme of the present application, the inside of the two auxiliary wheels is provided with an inner hole, and the outer surface of the two auxiliary wheels is provided with anti-skid lines.

[0013] As a preferred technical scheme of the present application, the top of the connecting shaft is fixedly provided with four insertion columns, and the four insertion columns are fixed with the main wheel through bolts.

[0014] As a preferred technical scheme of the present application, the top of the main wheel is provided with a mounting groove, and the inside of the mounting groove is clamped with a protective cover for protecting the insertion column.

[0015] Compared with the prior art, the present application has the following beneficial effects: 1. The foldable valve hand wheel, through the secondary wheel, the fixed structure, the device normal state, the two sides secondary wheel fold down, at this time the device volume becomes small, when the device needs to be unfolded, the two sides secondary wheel is folded up to the same level with the main wheel, then the four hinged plates are folded up to make them separate from the positioning beans, the sliding hinged plates make them pass through the limiting plate to drive the threaded rod to slide out of the first fixed seat, insert into the through slot hole, when the threaded rod passes out of the through slot hole, the hinged plates are folded again to cover in the left positioning beans to form the preliminary fixation, then the four threaded pipes are turned into the threaded sleeve plate inside, because the outer surface of the threaded pipe and the inner groove are provided with threaded grooves, when the threaded pipe is rotated, it can be tightened and fixed with the threaded sleeve plate and the threaded rod, thereby completing the complete fixation of the two sides secondary wheel, this structure can avoid the interference with the surrounding equipment or channel by folding the main wheel and the secondary wheel, adapt to narrow installation environment, expand the valve application scene, such as compact ship space, industrial equipment integration, household small space pipeline valve, etc.; reduce the valve packaging volume and transportation cost, reduce the storage space occupation, and avoid the hand wheel damage due to collision in transportation and storage, improve the product logistics safety; 2. The foldable valve hand wheel, through the magnetic plate, when the two sides secondary wheel is folded, the two sides arc groove plates can be fixed by the magnetic plate, so as to avoid the shaking of the two sides secondary wheel due to the hinge of the connecting piece during packaging or transportation; 3. The foldable valve hand wheel, through the fixed structure, when the two sides secondary wheel is unfolded, the hexagonal wrench can be inserted into the inner hexagonal groove to rotate the threaded pipe to rotate into the threaded sleeve plate inside, after the fixation is completed, the hexagonal wrench can be taken out, at this time only the matching hexagonal plate can take down the threaded pipe, thereby avoiding the accidental opening of the threaded pipe by other personnel to accidentally fold the secondary wheel. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the appearance structure schematic diagram of the present application; Figure 2 It is the connecting piece structure schematic diagram of the present application; Figure 3 It is the labor-saving groove structure schematic diagram of the present application; Figure 4 It is the installation groove structure schematic diagram of the present application; Figure 5 It is the fixed structure schematic diagram of the present application; Figure 6 It is the threaded rod structure schematic diagram of the present application; Figure 7 It is the inner hexagonal groove structure schematic diagram of the present application.

[0017] In the figure: 1, connecting shaft; 2, main wheel; 3, hinged seat; 4, connecting piece; 5, auxiliary wheel; 6, fixing structure; 61, first fixing seat; 62, sliding groove; 63, positioning bean; 64, second fixing seat; 65, threaded rod; 66, limiting plate; 67, hinged plate; 68, through slot hole; 69, threaded sleeve plate; 610, threaded tube; 611, internal hex; 7, fixing ring; 8, magnetic attraction plate; 9, arc groove plate; 10, fixing screw; 11, inner hole; 12, anti-skid line; 13, mounting groove; 14, insertion column; 15, protective cover. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0019] Please refer to Figures 1-7 A foldable valve hand wheel, comprising a connecting shaft 1, the top of the connecting shaft 1 is fixedly installed with a main wheel 2, the outer surface of the main wheel 2 is provided with an auxiliary wheel 5 on both sides, and the top of the main wheel 2 and the two auxiliary wheels 5 is fixedly installed with four fixing structures 6; the four fixing structures 6 comprise a first fixing seat 61 and a second fixing seat 64, the inside of the four first fixing seats 61 is provided with a sliding groove 62, the top of the four sliding grooves 62 is fixedly installed with a positioning bean 63, the inside of the four first fixing seats 61 is movably installed with a threaded rod 65, the top of the four threaded rods 65 is fixedly installed with a limiting plate 66, the inside of the four limiting plates 66 is hingedly installed with a hinged plate 67, the inside of the four second fixing seats 64 is provided with a through slot hole 68, one side of the outer surface of the four second fixing seats 64 is fixedly installed with a threaded sleeve plate 69, and the inside of the four threaded sleeve plates 69 is threadedly installed with a threaded tube 610.

[0020] Please refer to Figures 2-7 The outer surface and the inner groove of the four threaded tubes 610 are both provided with a threaded groove, and the outer surface of the four threaded tubes 610 is provided with an internal hex 611. The four first fixing seats 61 are symmetrically welded at the top of the main wheel 2, the four second fixing seats 64 are symmetrically welded at the top of the auxiliary wheel 5, and the four hinged plates 67 are connected with the positioning beans 63 in a plug-in manner. The bottom of the main wheel 2 is symmetrically installed with four groups of hinged seats 3, the inside of the four groups of hinged seats 3 is hingedly installed with connecting pieces 4, and the end of the four connecting pieces 4 is fixedly connected with the two auxiliary wheels 5.

[0021] When the two auxiliary wheels 5 are unfolded, the threaded tube 610 can be screwed into the threaded sleeve plate 69 by inserting a hex wrench into the inner hex groove 611. After it is fixed, the hex wrench can be removed. At this time, the threaded tube 610 can only be removed by the matching hex plate, which can prevent other personnel from accidentally opening the threaded tube 610 and accidentally folding the auxiliary wheel 5.

[0022] Please see Figures 1-4 A retaining ring 7 is fixedly installed on the outer surface of the connecting shaft 1, and two magnetic plates 8 are symmetrically installed inside the retaining ring 7. Arc groove plates 9 are fixedly installed at the bottom of the two auxiliary wheels 5, and the two arc groove plates 9 can be magnetically connected to the magnetic plates 8. Fixing threads 10 are present on both sides of the outer surface of the connecting shaft 1, and the two fixing threads 10 can be connected to peripheral equipment. The two auxiliary wheels 5 have internal holes 11, and anti-slip textures 12 are formed on their outer surfaces. Four insertion posts 14 are fixedly installed on the top of the connecting shaft 1, and the four insertion posts 14 can be fixed to the main wheel 2 with bolts. A mounting groove 13 is formed on the top of the main wheel 2, and a protective cover 15 for protecting the insertion posts 14 is fitted inside the mounting groove 13.

[0023] When the two auxiliary wheels 5 are folded, the magnetic suction plate 8 allows the two arc groove plates 9 to be attracted and fixed to the magnetic suction plate 8, thus preventing the auxiliary wheels 5 from shaking due to the hinge of the connecting piece 4 during packaging or transportation. When rotating the device, the inner hole 11 and the anti-slip texture 12 make rotation easier.

[0024] Working principle: When a foldable valve handwheel is in use, in its normal state, the two auxiliary wheels 5 fold downwards. Due to the magnetic suction plate 8, the two arc groove plates 9 can be attracted and fixed to the magnetic suction plate 8, thus preventing the auxiliary wheels 5 from shaking due to the hinge of the connecting piece 4 during packaging or transportation. When it is necessary to unfold the device, the two auxiliary wheels 5 are folded upwards to be flush with the main wheel 2. Then, the four hinge plates 67 are folded upwards to disengage them from the positioning bead 63. The hinge plates 67 are slid so that the threaded rod 65 slides out of the first fixed seat 61 through the limiting plate 66 and inserts into the through hole 68. After the threaded rod 65 passes through the through hole 68, the hinge plates 67 are folded upwards again to cover it. Initial fixation is achieved in the left positioning bead 63. Subsequently, the four threaded tubes 610 are sequentially rotated into the threaded sleeve plate 69. Since the outer surface and inner groove of the threaded tube 610 are both provided with threaded grooves, when the threaded tube 610 is rotated, it can be tightened and fixed with the threaded sleeve plate 69 and the threaded rod 65, thereby completing the complete fixation of the two auxiliary wheels 5. When the two auxiliary wheels 5 are unfolded, the threaded tube 610 can be rotated into the threaded sleeve plate 69 by inserting a hex wrench into the inner hex groove 611. After the fixation is completed, the hex wrench can be removed. At this time, the threaded tube 610 can only be removed by using the matching hex plate, thereby preventing other personnel from accidentally opening the threaded tube 610 and accidentally folding the auxiliary wheel 5.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A foldable valve handwheel, including a connecting shaft (1), characterized in that: A main wheel (2) is fixedly installed on the top of the connecting shaft (1), and secondary wheels (5) are provided on both sides of the outer surface of the main wheel (2). Four fixing structures (6) are fixedly installed on the top of the main wheel (2) and the two secondary wheels (5). The four fixed structures (6) include a first fixed seat (61) and a second fixed seat (64). The four first fixed seats (61) have a groove (62) inside. Positioning beans (63) are fixedly installed on both sides of the top of the four grooves (62). Threaded rods (65) are movably installed inside the four first fixed seats (61). Limiting plates (66) are fixedly installed on the top of the four threaded rods (65). Hinging plates (67) are hinged inside the four limiting plates (66). Through holes (68) are opened inside the four second fixed seats (64). Threaded sleeves (69) are fixedly installed on one side of the outer surface of the four second fixed seats (64). Threaded tubes (610) are threaded inside the four threaded sleeves (69).

2. The foldable valve handwheel according to claim 1, characterized in that: The outer surface and inner groove of the four threaded tubes (610) are provided with threaded grooves, and the outer surface of the four threaded tubes (610) is provided with an inner six groove (611).

3. The foldable valve handwheel according to claim 1, characterized in that: Four first fixing seats (61) are symmetrically welded to the top of the main wheel (2), four second fixing seats (64) are symmetrically welded to the top of the auxiliary wheel (5), and four hinge plates (67) can be plugged into the positioning bead (63).

4. The foldable valve handwheel according to claim 1, characterized in that: Four sets of hinge seats (3) are symmetrically installed on the bottom of the main wheel (2). Connecting parts (4) are hinged inside the four sets of hinge seats (3). The ends of the four connecting parts (4) are fixedly connected to the two auxiliary wheels (5).

5. The foldable valve handwheel according to claim 1, characterized in that: A fixing ring (7) is fixedly installed on the outer surface of the connecting shaft (1), and two magnetic suction plates (8) are symmetrically installed inside the fixing ring (7).

6. The foldable valve handwheel according to claim 1, characterized in that: The bottom of the two auxiliary wheels (5) is fixedly installed with arc groove plates (9), and the two arc groove plates (9) can be magnetically connected with the magnetic suction plate (8).

7. The foldable valve handwheel according to claim 1, characterized in that: The outer surface of the connecting shaft (1) has fixed threads (10) on both sides, and the two fixed threads (10) can be connected to peripheral equipment.

8. The foldable valve handwheel according to claim 1, characterized in that: The two auxiliary wheels (5) have an inner hole (11) inside, and the outer surface of the two auxiliary wheels (5) has anti-slip texture (12).

9. The foldable valve handwheel according to claim 1, characterized in that: Four pins (14) are fixedly installed on the top of the connecting shaft (1), and the four pins (14) can be fixed to the main wheel (2) by bolts.

10. The foldable valve handwheel according to claim 1, characterized in that: The top of the main wheel (2) is provided with a mounting groove (13), and a protective cover (15) for a protective insert (14) is fitted inside the mounting groove (13).

Images