Positioning valve handle

Abstract

The utility model provides a positioning valve handle, which belongs to the technical field of valves and comprises a handle body, a limit rod and a fastening nut. One end of the handle body is fixedly mounted on a valve rod of the valve; an arc-shaped groove is formed in the handle body, and the circle center of the arc-shaped groove is located at the axis of a rotating shaft of the handle body; the limiting rod is fixedly mounted on the surface of the air duct and penetrates through the arc-shaped groove; the fastening nut is in threaded connection with the limiting rod, and the fastening nut is located on the outer side of the handle body; the handle body is locked and fixed by screwing the fastening nut. According to the positioning valve handle provided by the utility model, after a valve is opened to a preset angle, the handle body can be locked and fixed by screwing the fastening nut, so that the problem that the opening angle of the valve is changed is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to valve technical field, more specifically, relate to a positioning valve handle. BACKGROUND

[0002] In the food processing industry, the moisture removal cylinder is an important component in the drying equipment or drying system, and its main function is to remove the moisture generated during the drying process of food and maintain the humidity balance of the drying environment. By adjusting the working state of the moisture removal cylinder, it can prevent the food from deteriorating due to excessive humidity or drying excessively due to insufficient humidity. The moisture removal cylinder is usually used with a fan, and the fan can remove the moisture from the drying chamber. A valve is installed on the moisture removal cylinder, and the opening degree of the valve is adjusted by rotating the handle, so as to control the air flow. When the valve is opened, the hot air flow is increased, and the drying speed is accelerated; when the valve is closed, the hot air flow is reduced, and the drying speed is reduced. The existing valve is rotated under the action of the handle gravity and the wind pressure in the moisture removal cylinder after being opened, which causes the opening angle of the valve to change. SUMMARY

[0003] The utility model discloses a positioning valve handle, which aims to solve the problem of the changeable opening angle of the valve of the existing moisture removal cylinder.

[0004] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of providing a positioning valve handle, which comprises:

[0005] The handle body is fixedly installed at one end of the valve rod of the valve; an arc-shaped groove is formed in the handle body, and the center of the arc-shaped groove is located on the rotating shaft axis of the handle body;

[0006] The limiting rod is fixedly installed on the surface of the air cylinder, and the limiting rod penetrates through the arc-shaped groove; and

[0007] The fastening nut is connected with the limiting rod through threads, and the fastening nut is located on the outside of the handle body.

[0008] By tightening the fastening nut, the handle body can be locked and fixed.

[0009] In a possible implementation, a supporting block is fixedly sleeved on the limiting rod, and the supporting block is in contact with the inner wall of the handle body.

[0010] In a possible implementation, a roller is rotatably installed on the limiting rod, and the roller is in contact with the inner walls on both sides of the arc-shaped groove.

[0011] In a possible implementation, an angle mark is arranged on the handle body, and a pointer is fixedly installed on the limiting rod and points to the angle mark.

[0012] In a possible implementation, a scale is fixedly installed on the handle body, and the angle notch is located on the scale.

[0013] In a possible implementation, the scale is fixed with the handle body by adhesion.

[0014] In a possible implementation, the handle body comprises a support part, a bending part and a hand-holding part connected in sequence, and the distance between the hand-holding part and the air cylinder is greater than the distance between the support part and the air cylinder.

[0015] In a possible implementation, a bushing for installing the pointer is formed on the side wall of the limiting rod.

[0016] In a possible implementation, a first magnet is installed at the end of the pointer, and a second magnet corresponding to the first magnet is installed on the inner side wall of the bushing.

[0017] In a possible implementation, an anti-skid bushing is sleeved on the hand-holding part.

[0018] Compared with the prior art, the scheme shown in the embodiment of the application, the positioning valve handle, the handle body is provided with a circular-arc-shaped groove, a limiting rod is fixedly installed on the air cylinder, and the limiting rod passes through the circular-arc-shaped groove, so that the handle body can drive the valve rod of the valve to rotate together, thereby realizing the opening and closing of the valve; when the valve is opened to a preset angle, the handle body can be locked and fixed by tightening the fastening nut, thereby solving the problem of change of the opening angle of the valve. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the application, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0020] Figure 1 The structure schematic view of the positioning valve handle provided by the embodiment of the application is shown in the drawings.

[0021] Figure 2 The structure schematic view of the positioning valve handle provided by the embodiment of the application is shown in the drawings.

[0022] Figure 3 The structure schematic view of the positioning valve handle provided by the embodiment of the application is shown in the drawings. Figure 2 The enlarged view of A in the drawings.

[0023] In the figure: 1, handle body; 101, arc-shaped groove; 102, angle notch; 103, pointer; 104, scale; 105, support part; 106, bending part; 107, hand holding part; 108, first magnet; 109, anti-skid bushing; 2, limiting rod; 201, support block; 202, roller; 203, insertion hole; 204, second magnet; 3, fastening nut; 4, valve rod; 5, air duct. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects of the utility model clearer, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and do not limit the utility model.

[0025] Please refer to Figures 1 to 3 , now a positioning valve handle provided by the utility model will be described. The positioning valve handle comprises a handle body 1, a limiting rod 2 and a fastening nut 3. One end of the handle body 1 is fixedly installed on a valve rod 4 of a valve; an arc-shaped groove 101 is formed in the handle body 1, and the center of the arc-shaped groove 101 is located on the rotating shaft axis of the handle body 1; the limiting rod 2 is fixedly installed on the surface of an air duct 5, and the limiting rod 2 passes through the arc-shaped groove 101; the fastening nut 3 is connected with the limiting rod 2 through threads, and the fastening nut 3 is located on the outside of the handle body 1; the handle body 1 is locked and fixed by rotating the fastening nut 3.

[0026] Compared with the prior art, the positioning valve handle provided by the embodiment comprises an arc-shaped groove 101 formed in the handle body 1, a limiting rod 2 fixedly installed on the air duct 5 and passing through the arc-shaped groove 101, so that the handle body 1 can drive the valve rod 4 of the valve to rotate together, thereby realizing the opening and closing of the valve; when the valve is opened to a preset angle, the handle body 1 can be locked and fixed by rotating the fastening nut 3, thereby solving the problem of the change of the opening angle of the valve.

[0027] In some examples, please refer to Figure 2 and Figure 3The support block 201 is fixed on the limiting rod 2 and is in contact with the inner side wall of the handle body 1. In this embodiment, the limiting rod 2 is fixedly connected with the air duct 5 by welding. The support block 201 is threadedly connected with the limiting rod 2. The support block 201 and the fastening nut 3 are respectively located on the two sides of the handle body 1. The support block 201 supports the handle body 1, thereby avoiding the bending deformation of the handle body 1 caused by the action force of the fastening nut 3. Since the support block 201 is threadedly connected with the limiting rod 2, the distance between the support block 201 and the outer wall of the air duct 5 can be adjusted. In this way, in actual use, the position of the support block 201 can be flexibly adjusted according to the specific conditions of the handle body 1 and the tightening degree of the fastening nut 3 and other factors, so as to ensure that the handle body 1 always maintains good stability and prevents bending deformation. For example, when it is found that the handle body 1 has a slight deformation tendency after the fastening nut 3 is tightened, the distance between the support block 201 and the outer wall of the air duct 5 can be appropriately increased by rotating the support block 201, so as to provide stronger support. Moreover, the threaded connection facilitates the installation and dismounting of the support block 201. If the support block 201 is damaged or needs to be replaced, the operation can be relatively convenient, the air duct 5 and the limiting rod 2 are not excessively affected, the maintenance cost and time can be reduced, and the use efficiency and service life of the entire equipment can be improved.

[0028] In some embodiments, referring to Figure 2 and Figure 3 , the rolling wheel 202 is rotatably installed on the limiting rod 2 and is in contact with the inner walls on the two sides of the arc-shaped groove 101. In this embodiment, a rolling bearing is installed between the rolling wheel 202 and the limiting rod 2. The limiting rod 2 is in contact with the inner walls on the two sides of the arc-shaped groove 101 through the rolling wheel 202. Since the rolling wheel 202 is in rolling friction with the handle body 1, the friction resistance between the limiting rod 2 and the handle body 1 is greatly reduced, so that the limiting rod 2 can limit the handle body 1 while effectively reducing the action force required for driving the handle body 1 to rotate.

[0029] In addition, the surface of the rolling wheel 202 is made of wear-resistant material, such as high-hardness alloy steel. This is to ensure that the rolling wheel 202 will not be excessively worn due to frequent contact with the inner walls of the arc-shaped groove 101 during long-term use, so as to always maintain good rolling performance and ensure the low friction resistance state between the limiting rod 2 and the handle body 1. At the same time, the rolling bearing is carefully selected. The rolling balls inside the rolling bearing are manufactured by high-precision machining process to improve the load capacity and rotation flexibility of the rolling bearing, further enhance the cooperation effect between the limiting rod 2 and the handle body 1, and make the handle body 1 more smooth and stable during rotation and be accurately limited at the required position.

[0030] In some embodiments, referring to Figure 1 , the handle body 1 is provided with an angle notch 102, and the limiting rod 2 is fixedly installed with a pointer 103 pointing to the angle notch 102. In this embodiment, the angle notch 102 is arranged along the outer contour of the arc-shaped groove 101. The pointer 103 is fixedly installed on the limiting rod 2. The operator can read the angle of rotation of the handle body 1 through the pointer 103, so as to confirm whether the opening angle of the valve is correct.

[0031] In other embodiments, an angle sensor (not shown) can be arranged inside the handle body 1. The angle sensor is connected with an external display device (not shown). When the handle body 1 rotates, the angle sensor can sense the angle information of the rotation in real time and transmit the information to the display device for display. The advantage of this design is that, compared with the way of reading the angle through the pointer 103 and the angle notch 102, it can display the angle value more accurately, especially in the scene where high-precision confirmation of the opening angle of the valve is required. Moreover, the display device can be remotely set, and the operator can accurately obtain the angle information of the rotation of the handle body 1 at a certain distance, without the need to approach the equipment to check the angle notch 102 pointed by the pointer 103, greatly improving the convenience and safety of operation.

[0032] In some embodiments, referring to Figures 1 to 3 , the handle body 1 is fixedly installed with a scale 104, and the angle notch 102 is located on the scale 104. In this embodiment, the scale 104 is arc-shaped. The angle notch 102 is arranged on the scale 104. Since the scale 104 and the handle body 1 are in a split structure, it is not necessary to directly arrange the angle notch 102 on the handle body 1, which reduces the processing difficulty; when the angle notch 102 is worn, the scale 104 can be directly replaced, so the maintenance cost is reduced.

[0033] This split structure design also has certain flexibility. For example, in different use scenarios, if it is necessary to adjust the measurement accuracy, it is only necessary to replace the scale 104 with different scale intervals, without the need to modify the entire handle body 1. At the same time, since the scale 104 is arc-shaped and matches the shape of the handle body 1, it can be closely fitted during installation and will not affect the overall appearance and use feel of the handle. Moreover, during the manufacturing process, the production of the scale 104 and the production of the handle body 1 can be carried out separately, improving the production efficiency. In addition, for the user, this split structure is also convenient for them to clean and maintain the scale 104, prolonging the service life.

[0034] In some embodiments, the scale 104 is fixed to the handle body 1 by adhesion. In this embodiment, the scale 104 is connected to the handle body 1 by adhesion, without the need to increase the number of components, and is convenient to disassemble and assemble.

[0035] This connection mode can also effectively reduce the cost, because it does not need to additionally manufacture and use complex connecting components. At the same time, the firmness of adhesion can be guaranteed under normal use conditions, and as long as a suitable adhesive is selected, the scale 104 can be stably fixed to the handle body 1. When the scale 104 needs to be replaced, it can be gently removed using an appropriate solvent or tool, without damaging the handle body 1, which provides great convenience for the maintenance and upgrading of the equipment. Moreover, the adhesion mode can make the connection surface between the scale 104 and the handle body 1 more flat, without producing a protruding structure, and is more beautiful in appearance, meeting the requirements of modern equipment for simple and beautiful design.

[0036] In some embodiments, referring to Figure 1 and Figure 2 , the handle body 1 comprises a support portion 105, a bending portion 106 and a hand holding portion 107 connected in sequence, and the distance between the hand holding portion 107 and the air cylinder 5 is greater than the distance between the support portion 105 and the air cylinder 5. In this embodiment, the handle body 1 is integrally processed by a stamping process. The bending portion 106 is perpendicular to the support portion 105 and the hand holding portion 107, respectively. The support portion 105 is fixedly connected to the valve rod 4 of the valve. By arranging the bending portion 106 between the support portion 105 and the hand holding portion 107, the distance between the hand holding portion 107 and the air cylinder 5 is increased, so as to ensure that the hand holding portion 107 has sufficient holding space.

[0037] In addition, this structural design can also improve the comfort of the user's operation to a certain extent. When the user holds the hand holding portion 107, since it has sufficient distance from the air cylinder 5, the hand will not easily touch the high-temperature part of the air cylinder 5, avoiding the risk of possible burns. Moreover, the handle body 1 integrally processed by the stamping process has good structural strength. In the long-term use process, even if it is pulled or collided by external force, it is not easy to break or deform. Furthermore, the fixed connection mode of the support portion 105 and the valve rod 4 is also relatively stable, which can accurately control the opening and closing degree of the valve, so as to accurately adjust the air volume or air speed and other parameters of the air cylinder 5. This design of the handle body 1 has a positive effect on the use experience and function realization of the overall equipment.

[0038] In some embodiments, referring to Figure 3The side wall of the limiting rod 2 is provided with a hole 203 for installing the pointer 103. In this embodiment, the hole 203 is a counterbore. The limiting rod 2 is cylindrical, and the hole 203 is consistent with the radial direction of the limiting rod 2. One end of the pointer 103 is inserted into the hole 203 and is fixedly connected to the limiting rod 2 through the insertion fit.

[0039] This connection method has the advantages of simple structure and convenient installation. At the same time, the design of the counterbore makes the connection between the pointer 103 and the limiting rod 2 more stable and less likely to loosen. In actual application, when the limiting rod 2 moves or rotates, the pointer 103 can accurately reflect the state change of the limiting rod 2. For example, in some precision measuring equipment, the displacement or rotation angle of the limiting rod 2 can be accurately read through the indication of the pointer 103 on the scale disc, thereby providing important data reference for the debugging and operation of the equipment. Moreover, due to the design of the cylindrical limiting rod 2 and the radial hole 203, the entire structure has good coaxiality during assembly, which helps to improve the overall performance and stability of the equipment.

[0040] In some embodiments, referring to Figure 3 , the end of the pointer 103 is provided with a first magnet 108, and the inner side wall of the hole 203 is provided with a second magnet 204 corresponding to the first magnet 108. In this embodiment, the first magnet 108 is fixedly installed on the end face of the pointer 103, and the second magnet 204 on the inner side wall of the hole 203 corresponds to the first magnet 108, so that the connection strength between the pointer 103 and the limiting rod 2 is improved through the magnetic attraction between the first magnet 108 and the second magnet 204.

[0041] In some embodiments, referring to Figure 1 and Figure 2 , the handheld part 107 is provided with an anti-skid sleeve 109. In this embodiment, the anti-skid sleeve 109 is made of rubber. The anti-skid sleeve 109 is sleeved on the handheld part 107, and the anti-skid sleeve 109 can increase friction and prevent sliding.

[0042] In addition, the surface of the anti-skid sleeve 109 can also be provided with special textures, which can further increase the friction with the user's hands. For example, the textures can be interlaced lines or dense dots, which can better fit the skin of the hands when the user holds the hand-held part 107, so as to ensure that the device will not accidentally slip even in the case of sweating or a small amount of oil. Moreover, the anti-skid sleeve 109 made of rubber material also has a certain elasticity, which can adapt to the gripping of hands of different sizes to a certain extent, improving the gripping comfort of the user. At the same time, in order to ensure the stability of the anti-skid sleeve 109 on the hand-held part 107, a groove or a convex structure matching the shape of the hand-held part 107 can be arranged on the inner side of the anti-skid sleeve 109, so that displacement phenomenon is not easy to occur after installation.

[0043] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A valve handle positioning device, comprising: Including: Handle body, one end is fixedly installed on the valve stem of the valve; An arc-shaped groove is formed in the handle body, and the center of the arc-shaped groove is located on the rotating shaft of the handle body; Limiting rod, fixedly installed on the surface of the air cylinder, the limiting rod passes through the arc-shaped groove; And Fastening nut, connected with the limiting rod through threads, the fastening nut is located on the outside of the handle body; By tightening the fastening nut, the handle body is locked and fixed.

2. A valve handle positioning device as defined in claim 1, wherein, The supporting block is sleeved and fixed on the limiting rod, and the supporting block is in contact with the inner side wall of the handle body.

3. A valve handle positioning device as defined in claim 1, wherein: The roller is rotatably installed on the limiting rod, and the roller is in contact with the inner walls on both sides of the arc-shaped groove.

4. A valve handle positioning device as defined in claim 1, wherein: The handle body is provided with an angle mark, and the limiting rod is fixedly installed with a pointer pointing to the angle mark.

5. A valve handle positioning device as defined in claim 4 wherein, The handle body is fixedly installed with a scale, and the angle mark is located on the scale.

6. A valve handle positioning device as defined in claim 5, wherein: The scale and the handle body are fixed by adhesion.

7. A valve handle positioning device as defined in claim 1, wherein: The handle body comprises a supporting part, a bending part and a hand-holding part connected in sequence, and the distance between the hand-holding part and the air cylinder is greater than the distance between the supporting part and the air cylinder.

8. A valve handle positioning device as defined in claim 4 wherein, The side wall of the limiting rod is provided with a insertion hole for installing the pointer.

9. A valve handle positioning device as defined in claim 8, wherein: The end of the pointer is provided with a first magnet, and the inner side wall of the insertion hole is provided with a second magnet corresponding to the first magnet.

10. A valve handle positioning device as defined in claim 7, wherein: The hand-holding part is sleeved with an anti-skid bushing.

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