Hand wheel type air valve executing mechanism and coating machine
By adding reinforced support and optimizing the distance between the support and handwheel in the handwheel air valve actuator, the problem of easy shaking of the long drive shaft is solved, operating stability and equipment durability are improved, and the factory area is saved.
Patent Information
- Application Number
- CN202323516805.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-22
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2033-12-22
AI Technical Summary
The existing hand-wheeled air valve actuator is prone to shake under the long drive shaft, which affects the operating experience and the durability of the equipment. At the same time, the large operating space leads to a large gap between the coating machine and the wall, which wastes the factory area.
A hand-wheeled air valve actuator is designed. By adding a reinforcement support to the transmission rod, the transmission rod and the reinforcement support can be rotatably connected, and the distance between the reinforcement support and the handwheel is smaller than that between the reinforcement support and the actuator support. The distance between seats increases the support point and reduces the sway of the rod.
It effectively reduces the shaking of the air valve actuator, improves the stability of operation and the durability of the equipment, and reduces the space required for operation and saves the factory area.
Smart Images
Figure CN222490796U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of air valve actuators, and specifically relates to a hand wheel type air valve actuator. The utility model also relates to a coating machine having the hand wheel type air valve actuator. Background Art
[0002] Air valves are generally used in ventilation system pipes to adjust the air volume of branch pipes. They can also be used to adjust the mixing of fresh air and return air. They are usually blade structures. The opening of the air valve is adjusted by the air valve actuator. The air valve actuator is connected to the air valve blades. The air valve actuator drives the air valve blades to rotate to adjust the rotation angle of the air valve. The rotation angle of the air valve is directly related to the opening of the air valve. Among the air valve actuators, the handwheel air valve actuator is the most commonly used because of its simple, reliable structure and low cost.
[0003] The existing coating machine includes multiple air ducts, all of which require corresponding air valve actuators to adjust the air valve opening to meet different process requirements. In a general factory building, the coating machine air duct is set against the wall, the air valve is set inside the air duct, and the air valve actuator passes through the outer wall of the air duct and is connected to the air valve and fixed on the outer wall of the air duct. To operate the handwheel air valve actuator, a person needs to walk in front of the air valve actuator to turn the handwheel. In addition, the dial indicating the rotation angle of the existing handwheel air valve actuator is set vertically to the wheel surface of the handwheel, and the operator needs to visually adjust the air valve angle. The required operating space is large, resulting in a large gap between the coating machine and the wall. If the transmission rod of the air valve actuator can be lengthened so that the handwheel extends to the aisle on the side of the coating machine, the operator can operate in the aisle, and only a gap of about 20CM needs to be left between the coating machine and the wall for heat dissipation, thereby saving the factory area. In addition, the coating machine air duct passes through heated hot air, and it is dangerous for the human body to approach the air duct to operate the air valve actuator. It can be seen that the air valve actuator that can be operated remotely has a high application value.
[0004] The existing damper actuator can change the operating distance arbitrarily by replacing the drive shaft of different lengths. However, when using a longer drive shaft, the lever arm is too long, and the operator will inevitably cause the drive shaft to shake significantly when turning the handwheel, which not only provides a poor operating experience, but also affects the durability of the damper actuator. Utility Model Content
[0005] In order to solve the above technical problems, it is necessary to provide a hand-wheel type air valve actuator that is not easy to shake and a coating machine having the hand-wheel type air valve actuator.
[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:
[0007] A handwheel type air valve actuator, including a transmission rod used to be connected to the air valve for transmission to adjust the opening of the air valve, the transmission rod is rotatably connected to the actuator support, the end of the transmission rod away from the actuator support is connected to a handwheel, and also includes a reinforcing support for supporting the transmission rod, the reinforcing support is supported on a rod body of the transmission rod located between the actuator support and the handwheel, the transmission rod is rotatably connected to the reinforcing support, and the distance between the reinforcing support and the handwheel is smaller than the distance between the reinforcing support and the actuator support.
[0008] In the handwheel type air valve actuator provided by the utility model, the transmission rod and the reinforced support are rotatably connected, the reinforced support plays the role of supporting the rod body, increases the support points, and effectively reduces the shaking of the rod body; the distance between the reinforced support and the handwheel is smaller than the distance between the reinforced support and the actuator support, so that the handwheel can be effectively supported, and the effect of reducing shaking is better; the handwheel type air valve actuator provided by the utility model is not easy to shake, and is particularly suitable for the situation where the transmission rod of the air valve actuator is longer.
[0009] Preferably, the reinforcing support is provided with a through hole that matches the transmission rod, and the transmission rod passes through the through hole to be rotatably connected to the reinforcing support. This structure not only supports the reinforcing support, but also has a limiting effect due to the shape of the through hole matching the transmission rod, thereby stabilizing the rotation track of the transmission rod.
[0010] Preferably, the reinforced support includes an indication surface disposed toward the hand wheel, and the transmission rod is connected with a pointer assembly that cooperates with the indication surface to indicate the rotation angle of the hand wheel. The indication surface and the pointer assembly cooperate to indicate the rotation angle of the hand wheel, and the rotation angle of the hand wheel corresponds to the air valve opening; when the operator rotates the hand wheel, he stands in the aisle and faces the hand wheel to operate, and the indication surface of the reinforced support is disposed toward the hand wheel so that the operator can directly see the indication surface to control the air valve opening.
[0011] Preferably, the indicating surface is provided with an angle mark, the angle mark is located around the through hole, and the pointer assembly is connected to the transmission rod and rotates with the transmission rod and points to the angle mark. This structure enables the rotation angle of the transmission rod to be directly read.
[0012] Preferably, the pointer assembly includes a connecting piece sleeved on the transmission rod and rotating therewith, and a pointer detachably connected to the connecting piece. In this structure, the connecting piece is connected to the transmission rod in a sleeved manner, and the contact surface between the connecting piece and the transmission rod is large. Whether it is bonded or bolted at multiple points, the connection between the connecting piece and the transmission rod can be relatively stable, and the connecting piece can be rotated to reset the indication angle of the pointer and then connected to the transmission rod, which is convenient for installation; because the pointer tip is small and easily damaged, the pointer and the connecting piece are detachably designed for replacement.
[0013] Preferably, the pointer has a bottom surface matched with the outer peripheral surface of the connecting member and a needle body attached to the indicating surface. If the needle body is separated from the indicating surface, different visual angles may lead to different readings, and the pointer is attached to the indicating surface to eliminate the deviation caused by the reading angle.
[0014] Preferably, the distance between the reinforcing support and the handwheel satisfies 5CM≤x≤30CM. In order to achieve a better effect of reducing shaking, the distance between the reinforcing support and the handwheel should not be too far, preferably within 30 cm. In the case where an indicator surface is provided on the reinforcing support, when the distance between the reinforcing support and the handwheel is less than 5 cm, the handwheel will block the indicator surface, making it inconvenient to read.
[0015] Preferably, a friction-resistant member is provided between the transmission rod and the through hole, and the friction-resistant member is connected to the side of the reinforcing support away from the indicating surface. In this structure, the transmission member slides on the friction-resistant member, and the friction-resistant member is generally made of a relatively smooth material to reduce the sliding resistance of the transmission rod and improve the durability of the hand-wheel type air valve actuator.
[0016] A coating machine includes an air duct and an air valve arranged in the air duct, and also includes the hand-wheel air valve actuator as described above, the valve core of the air valve passes through the wall of the air duct to the outside of the air duct and is transmission-connected to the transmission rod, and the actuator support and the reinforcement support are connected to the outer wall of the coating machine. Since it includes the hand-wheel air valve actuator, the coating machine has all the beneficial technical effects brought by the hand-wheel air valve actuator, which will not be described one by one here.
[0017] Preferably, the valve core is connected to a worm wheel, the transmission rod is connected to a worm, and the worm wheel meshes with the worm; or the transmission rod is connected to a driving bevel gear, the valve core is connected to a driven bevel gear, and the driving bevel gear meshes with the driven bevel gear. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The above and other purposes, features and advantages of the present invention will become more apparent through a more specific description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals in all the accompanying drawings indicate the same parts, and the drawings are not intentionally scaled to the actual size, but the focus is on illustrating the subject matter of the present invention.
[0019] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of a hand-wheel type air valve actuator;
[0020] Figure 2 It is a schematic diagram of the back side of a preferred embodiment of a hand-wheel type air valve actuator;
[0021] Figure 3 Schematic diagram of a preferred embodiment of a coating machine.
[0022] In the figure: transmission rod 1, actuator support 2, valve core socket 21, hand wheel 3, reinforcement support 4, indicating surface 41, pointer assembly 5, connecting part 51, pointer 52, friction-resistant part 6, valve core 7, air duct 8. DETAILED DESCRIPTION
[0023] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.
[0024] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element and combined with it as a whole, or there may be an intermediate element at the same time. The terms "installed", "one end", "the other end" and similar expressions used in this article are only for the purpose of illustrating the present utility model.
[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art. The terms used in the specification herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0026] refer to Figure 1 The handwheel type air valve actuator described in the utility model includes a transmission rod 1 used for transmission connection with the air valve to adjust the opening of the air valve, the transmission rod 1 is rotatably connected to the actuator support 2, the end of the transmission rod 1 away from the actuator support 2 is connected with a handwheel 3, and also includes a reinforcing support 4 for supporting the transmission rod 1, the reinforcing support 4 is supported on the rod body of the transmission rod 1 located between the actuator support 2 and the handwheel 3, the transmission rod 1 is rotatably connected to the reinforcing support 4, and the distance between the reinforcing support 4 and the handwheel 3 is smaller than the distance between the reinforcing support 4 and the actuator support 2.
[0027] refer to Figure 1 In a preferred embodiment, the reinforcing support 4 is provided with a through hole that matches the transmission rod 1, and the transmission rod 1 passes through the through hole and is rotatably connected to the reinforcing support 4. The reinforcing support 4 in the preferred embodiment is a hollow box structure, and the through hole is provided at the center side of the reinforcing support 4. In other embodiments, the reinforcing support 4 can also be in other shapes such as a disc shape, a C shape, etc., as long as it can play a supporting role.
[0028] refer to Figure 1In a preferred embodiment, the reinforcing support 4 includes an indicating surface 41 disposed toward the hand wheel 3, and the transmission rod 1 is connected with a pointer assembly 5 that cooperates with the indicating surface 41 to indicate the rotation angle of the hand wheel 3. The indicating surface 41 in the preferred embodiment is an angle marking plate connected to the reinforcing support 4, and in other embodiments, the indicating surface 41 may also be a surface of the reinforcing support 4 with an indicating mark drawn thereon.
[0029] refer to Figure 1 In a preferred embodiment, an angle mark is provided on the indicating surface 41, and the angle mark is located around the through hole. The pointer assembly 5 is connected to the transmission rod 1 and rotates with the transmission rod 1 and points to the angle mark. In the preferred embodiment, there are 0-90° indicating marks on the indicating surface 41, because most air valves adopt a double-leaf structure, and the transmission rod 1 can complete the whole process from opening to closing by rotating 90°. In other embodiments, the angle mark can be changed accordingly according to the structure of the air valve, so that the opening and closing of the air valve can be directly read from the indicating surface 41.
[0030] refer to Figure 1 In a preferred embodiment, the pointer assembly 5 includes a connecting member 51 sleeved on the transmission rod 1 and rotating therewith, and a pointer 52 detachably connected to the connecting member 51. In a preferred embodiment, the connecting member 51 is bolted to the transmission rod 1 at multiple points, and in other embodiments, other connection methods such as bonding and clamping can also be used. The pointer 52 is bolted to the connecting member 51 through a waist-shaped hole, and the position of the pointer 52 can be fine-tuned within the travel range of the waist-shaped hole.
[0031] refer to Figure 1 In a preferred embodiment, the pointer 52 has a bottom surface matched with the outer circumference of the connecting member 51 and a needle body attached to the indicating surface 41. In a preferred embodiment, the connecting member 51 is cylindrical, the curvature of the bottom surface of the pointer 52 is the same as the outer circumference of the connecting member 51, and the needle body is a flat pointed sheet.
[0032] refer to Figure 2 In a preferred embodiment, a friction-resistant member 6 is provided between the transmission rod 1 and the through hole, and the friction-resistant member 6 is connected to the side of the reinforcing support 4 away from the indicating surface 41. The friction-resistant member in the preferred embodiment is a flange coated with polytetrafluoroethylene, which is bolted to the reinforcing support 4.
[0033] In a preferred embodiment, the distance between the reinforcing support 4 and the hand wheel 3 is 15CM.
[0034] refer to Figure 3A coating machine includes an air duct 8 and an air valve arranged in the air duct 8, and also includes the handwheel type air valve actuator as described above, the valve core 7 of the air valve passes through the wall of the air duct 8 to the outside of the air duct 8 and is connected to the transmission rod 1, and the actuator support 2 and the reinforcement support 4 are bolted to the outer wall of the coating machine.
[0035] In a preferred embodiment, the valve core 7 is connected to a worm gear, the transmission rod 1 is connected to a worm, and the worm gear is meshed with the worm gear. Figure 2 In the preferred embodiment, the worm connected to the transmission rod 1 is arranged inside the box-shaped actuator support 2, and a valve core socket 21 is also opened on the back of the actuator support 2. During installation, the worm wheel connected to the valve core 7 is inserted into the valve core socket 21 to engage with the worm.
[0036] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0037] In the description of this specification, the description with reference to the terms "preferred embodiment", "further embodiment", "other embodiments" or "specific example" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.
[0038] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.
Claims
1. A hand-wheel type damper actuator, comprising a transmission rod (1) for transmission connection with the damper to adjust the damper opening, the transmission rod (1) being rotatably connected to an actuator support (2), and a hand wheel (3) being connected to one end of the transmission rod (1) away from the actuator support (2), characterized in that: It also includes a reinforcing support (4) for supporting the transmission rod (1), the reinforcing support (4) being supported on a rod body of the transmission rod (1) located between the actuator support (2) and the hand wheel (3), the transmission rod (1) and the reinforcing support (4) being rotatably connected, and the distance between the reinforcing support (4) and the hand wheel (3) being smaller than the distance between the reinforcing support (4) and the actuator support (2).
2. A hand wheel type air valve actuator according to claim 1, characterized in that: The reinforcing support (4) is provided with a through hole that cooperates with the transmission rod (1), and the transmission rod (1) passes through the through hole and is rotatably connected to the reinforcing support (4).
3. A hand wheel type air valve actuator according to claim 2, characterized in that: The reinforcing support (4) comprises an indicating surface (41) disposed toward the hand wheel (3), and the transmission rod (1) is connected to a pointer assembly (5) that cooperates with the indicating surface (41) to indicate the rotation angle of the hand wheel (3).
4. A hand wheel type air valve actuator according to claim 3, characterized in that: The indicating surface (41) is provided with an angle mark, the angle mark is located on the peripheral side of the through hole, and the pointer assembly (5) is connected to the transmission rod (1) and rotates with the transmission rod (1) and points to the angle mark.
5. A hand wheel type air valve actuator according to claim 4, characterized in that: The pointer assembly (5) comprises a connecting piece (51) sleeved on the transmission rod (1) and rotating therewith, and a pointer (52) detachably connected to the connecting piece (51).
6. A hand wheel type air valve actuator according to claim 5, characterized in that: The pointer (52) comprises a bottom surface matched with the outer peripheral surface of the connecting member (51) and a needle body abutting against the indicating surface (41).
7. A hand wheel type air valve actuator according to any one of claims 1 to 6, characterized in that: The distance between the reinforcing support (4) and the hand wheel (3) satisfies 5CM≤x≤30CM.
8. A hand wheel type air valve actuator according to any one of claims 3 to 6, characterized in that: A friction-resistant member (6) is provided between the transmission rod (1) and the through hole, and the friction-resistant member (6) is connected to a side of the reinforcing support (4) facing away from the indicating surface (41).
9. A coating machine, comprising an air duct (8) and an air valve arranged in the air duct (8), characterized in that: It also includes a hand-wheel type air valve actuator as described in any one of claims 1 to 8, the valve core (7) of the air valve passes through the wall of the air duct (8) to the outside of the air duct (8) and is connected to the transmission rod (1), and the actuator support (2) and the reinforcement support (4) are connected to the outer wall of the coating machine.
10. A coating machine according to claim 9, characterized in that: The valve core (7) is connected to a worm gear, the transmission rod (1) is connected to a worm, and the worm gear and the worm gear are meshed; or the transmission rod (1) is connected to a driving bevel gear, the valve core (7) is connected to a driven bevel gear, and the driving bevel gear and the driven bevel gear are meshed.