Novel air valve controller

Abstract

A novel air valve controller is provided with a pressing plate, the pressing plate is pressed through a pressing cap, a variable-speed pinion and a main shaft gear can be separated from the meshing state, at the moment, a rotating head can be controlled to rotate through a hand or a hand tool, and rotation of a main shaft is manually controlled; the clockwise rotation end point of the main shaft gear abuts against the first microswitch, the anticlockwise rotation end point of the main shaft gear abuts against the second microswitch, and an opening state signal and a closing state signal are transmitted through a circuit by abutting against the first microswitch and the second microswitch respectively. A control room can conveniently and timely identify the opening and closing states of the air valve controller or the air valve connected with the air valve controller; the limit is arranged, the main shaft gear is arranged to be the sector gear, the arc-shaped notch corresponding to the limit is formed in the end, close to the main shaft, of the main shaft gear, the clockwise rotation angle and the anticlockwise rotation angle of the main shaft gear are limited, and it can be avoided that when the main shaft is controlled to rotate through a hand or a hand tool, the main shaft rotates excessively; and related parts are damaged.

Description

Technical Field

[0001] The utility model relates to the field of air valve control devices, in particular to a novel air valve controller. Background Art

[0002] China's authorized patent announcement number: CN212157590U discloses a damper controller, specifically discloses that a motor drives a driving gear, the driving gear meshes with a reduction gear, the reduction gear meshes with a main shaft gear through a coaxial transmission gear, controls the main shaft to rotate clockwise or counterclockwise, and the damper connected to the main shaft performs an opening or closing action accordingly. Through the meshing relationship and power transmission between the gears, the main shaft speed is reduced, the torque is increased, and it is suitable for the action control of opening and closing the damper.

[0003] The above patent document does not disclose a mechanism for manually controlling the counterclockwise or clockwise rotation of the main shaft. In the mechanism for controlling the rotation of the main shaft by a motor, the motor control terminal is often set in the control room, while the air valve controller and the air valve are set at the work site. At the work site, it is often necessary to operate the opening and closing of the air valve according to the environmental conditions of the site. When the air valve at the work site needs to be opened or closed, it is necessary to notify the personnel in the control room to operate, which is very inconvenient, especially when there is a sudden or emergency situation at the work site. Notifying the personnel in the control room to operate will waste precious time, which requires the air valve controller at the work site to add a manual control function.

[0004] The above patent document does not disclose a device for transmitting the air valve opening or closing signal. When the motor performs the rotation action, the personnel in the control room cannot obtain status feedback and need to confirm on site, which is very inconvenient.

[0005] The above patent document does not disclose the limit device of the spindle gear. During the manual control of the spindle rotation, the stop feedback of the related components connected to the spindle is relied on as a reference for the termination of the rotation action, which may cause excessive rotation of the spindle. Especially when hand tools are used to assist in rotating the spindle, damage to the related components may be caused. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a new type of air valve controller, which solves the problem that the existing air valve controller equipped with a speed reduction mechanism can only control the rotation of the main shaft by a motor and cannot use manual control to control the rotation of the main shaft; solves the problem that the existing air valve controller equipped with a speed reduction mechanism cannot feedback the open or closed status signal; solves the problem that the existing air valve controller equipped with a speed reduction mechanism has no limit on the main shaft, and the excessive rotation of the main shaft may cause damage to related components.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The transmission gear of the present invention is a gear selected from the group consisting of a motor, a gear train and a gear combination, and a gear unit is connected to the transmission gear of the present invention. The cam is provided with a second spring, and the lower end of the cam is connected with a pressure plate, and holes corresponding to the shaft rod and the column are respectively provided on the pressure plate, and the end portion of the pressure plate away from the shaft rod extends downward, and is folded back in the direction close to the shaft rod to form a folding portion, and the folding portion is provided with a hole corresponding to the column, and the lower end of the folding portion is connected with the second spring; the upper end of the speed change pinion is connected with the pressure plate; the upper end of the pressure plate is connected with a pressure cap, and the pressure cap is provided with a pressure sheet and a hollow rod, and the lower end of the pressure sheet is connected with the hollow rod, and the hollow rod is sleeved on the column; the main shaft passes through the top plate and protrudes above the top plate, and the upper end of the main shaft is connected with a rotating head; by the pressure cap touching the pressure plate, the speed change pinion and the main shaft gear can be disengaged from the meshing state, while the speed change large gear and the driving gear remain in a meshing state.

[0009] Preferably, the main shaft gear is configured as a sector gear, and the end point of clockwise rotation of the main shaft gear abuts against a first micro switch, and the end point of counterclockwise rotation of the main shaft gear abuts against a second micro switch.

[0010] Preferably, the top plate is provided with a limit position, and the limit position limits the rotation angle of the main shaft gear in the clockwise direction and the counterclockwise direction.

[0011] Preferably, an arc-shaped notch corresponding to the limit is provided at the end of the main shaft gear close to the main shaft, and the limit is provided as a screw.

[0012] The utility model provides a novel air valve controller, which has the following beneficial effects:

[0013] By setting a pressure plate and pressing the pressure plate through the pressure cap, when the speed change pinion and the main shaft gear are out of meshing state, the rotation of the rotating head can be controlled by hand or hand tools to realize manual control of the main shaft rotation.

[0014] By setting the first micro switch and the second micro switch, the main shaft gear abuts the first micro switch at the end of clockwise rotation, and abuts the second micro switch at the end of counterclockwise rotation. The opening state signal and the closing state signal are respectively transmitted through the circuit by abutting the first micro switch and the second micro switch, so that the control room can timely identify the opening and closing state of the air valve controller or the air valve.

[0015] By setting a limit and configuring the main shaft gear as a sector gear, an arc-shaped notch corresponding to the limit is provided at the end of the main shaft gear close to the main shaft, thereby limiting the clockwise and counterclockwise rotation angles of the main shaft gear. This can avoid damage to related components due to excessive rotation of the main shaft when the main shaft rotation is controlled by hand or hand tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the front view of the structure of the utility model;

[0017] Figure 2 This is a rear view of the structure of the utility model;

[0018] Figure 3 This is a front view of the state when the pressure cap of the utility model contacts the pressure plate;

[0019] Figure 4 This is a rear view of the state when the pressure cap of the utility model contacts the pressure plate;

[0020] Figure 5 This is a left view of the connection between the pressing plate, the speed change gear and the column of the utility model;

[0021] Figure 6 It is a left view of the connection state of the pressing plate, the speed change gear and the column when the pressing cap touches the pressing plate of the utility model;

[0022] Figure 7 This is a top view of the structure of the utility model;

[0023] Figure 8 It is a top view of the state when the main shaft gear of the utility model abuts against the first micro switch;

[0024] Fig. 9 This is a top view of the state when the main shaft gear of the utility model abuts against the second micro switch.

[0025] In the figure, 11-top plate, 111-notch, 12-bottom plate, 13-support column, 2-motor, 3a-driving gear, 3b-speed gear, 31b-speed gear, 32b-speed gear, 3c-spindle gear, 33-arc notch, 41-shaft rod, 42-spindle, 421-rotating head, 43-column, 5a-first spring, 5b-second spring, 6-pressure plate, 61-folding part, 7-pressure cap, 71-pressure sheet, 72-hollow rod, 8a-first micro switch, 8b-second micro switch, 9-limit. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood in specific circumstances.

[0028] In the description of the embodiments of the present invention, it should be noted that the terms "upper" and "lower" etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0029] See also Figure 1-Figure 7The utility model embodiment provides a technical solution: 1. A new type of air valve controller is provided with a top plate 11 and a bottom plate 12, a plurality of support columns 13 are provided between the top plate 11 and the bottom plate 12, a motor 2 is provided at the upper end of the top plate 11, a driving gear 3a is provided at the lower end of the top plate 11, the motor 2 is connected to the driving gear 3a, a shaft 41 is fixedly provided between the top plate 11 and the bottom plate 12, and a first spring 5a is sleeved at the lower part of the shaft 41; a main shaft 42 is rotatably provided between the top plate 11 and the bottom plate 12; a speed change gear 3b is also provided, and the center of the speed change gear 3b can be The rotatable sleeve is arranged on the upper part of the shaft 41, and the speed gear 3b can move up and down relative to the shaft 41; the speed gear 3b is provided with a large speed gear 31b and a small speed gear 32b, the upper end of the large speed gear 31b is fixedly connected to the small speed gear 32b, and the axis of the large speed gear 31b and the small speed gear 32b coincide, and the lower end of the large speed gear 31b is connected to the first spring 5a; the driving gear 3a is meshed with the large speed gear 31b; the main shaft 42 is fixedly sleeved with a main shaft gear 3c, and the small speed gear 32b is meshed with the main shaft gear 3c; the top plate 11 and the bottom plate 11 are ... A column 43 is also provided between the plates 12, and the column 43 is fixedly provided at the upper end of the bottom plate 12, and a notch 111 corresponding to the column 43 is provided on the top plate 11, and the column 43 passes through the notch 111 and protrudes above the top plate 11; a second spring 5b is sleeved on the lower part of the column 43, and a pressing plate 6 is connected to the lower end of the top plate 11, and holes corresponding to the shaft rod 41 and the column 43 are respectively provided on the pressing plate 6, and the end of the pressing plate 6 away from the shaft rod 41 extends downward, and is folded back in the direction close to the shaft rod 41 to form a folded portion 61, and a hole corresponding to the column 43 is provided on the folded portion 61, and the The lower end of the folding portion 61 is connected to the second spring 5b; the upper end of the speed change pinion 32b is connected to the pressure plate 6; the upper end of the pressure plate 6 is connected to a pressure cap 7, and the pressure cap 7 is provided with a pressure sheet 71 and a hollow rod 72, and the lower end of the pressure sheet 71 is connected to the hollow rod 72, and the hollow rod 72 is sleeved on the column 43; the main shaft 42 passes through the top plate 11 and protrudes above the top plate 11, and the upper end of the main shaft 42 is connected to a rotating head 421; by the pressure cap 7 touching the pressure plate 6, the speed change pinion 32b can be disengaged from the main shaft gear 3c, while the speed change gear 31b and the driving gear 3a remain in meshing state.It should be particularly noted that: when the pressure cap 7 touches the pressure plate 6 to disengage the speed pinion 32b from the main shaft gear 3c, the importance of keeping the speed gear 31b in mesh with the drive gear 3a lies in: since the speed gear 3b is movably connected to the shaft 41, when the pressure cap 7 touches the pressure plate 6 downward to disengage the speed pinion 32b from the main shaft gear 3c, if the speed gear 31b is also disengaged from the drive gear 3a, the speed gear 3b may be unexpectedly skewed on the shaft 41, and keeping the speed gear 31b in mesh with the drive gear 3a can make the speed gear 3b run stably downward or upward.

[0030] See also Figure 8-Figure 9 In this embodiment, the main shaft gear 3c is set as a fan-shaped gear. The main shaft gear 3c abuts the first micro switch 8a at the end of clockwise rotation, and abuts the second micro switch 8b at the end of counterclockwise rotation. It should be noted that the micro switch is a contact mechanism with a small contact spacing and a quick action mechanism, which performs a switching action with a specified stroke and a specified force, and is covered with a shell and has a driving rod on the outside. Because the contact spacing of the switch is relatively small, it is called a micro switch. The driving rod on the outside realizes quick switching by applying pressure. When the main shaft gear 3c rotates clockwise to the end point, it presses the driving rod of the first micro switch 8a, changes the switch state of the first micro switch 8a, and then transmits a change signal through the line connected to the first micro switch 8a; similarly, the main shaft gear 3c rotates counterclockwise to the end point, presses the second micro switch 8b, and transmits a change signal; by identifying whether the output signal comes from the first micro switch 8a or the second micro switch 8b, the switch state of the air valve controller or the air valve can be distinguished.

[0031] See also Figure 1 , Figure 7-Figure 9 In this embodiment, the top plate 11 is provided with a limit position 9, and the limit position 9 limits the rotation angle of the main shaft gear 3c in the clockwise direction and the rotation angle in the counterclockwise direction. It should be particularly noted that the setting of the limit position 9 limits the rotation angle of the main shaft gear 3c in the clockwise direction and the counterclockwise direction, which can avoid the excessive rotation that may occur when the rotating head 421 is manually controlled to rotate, especially when the rotating head 421 is controlled to rotate by a hand tool. Excessive rotation may cause damage to relatively fragile associated components, such as the first micro switch 8a and the second micro switch 8b. It is worth noting that the air valve connected to the main shaft 42 may also be provided with a limit position, which will cause redundant setting of the limit position. However, as long as it is reasonably arranged so that the limit positions do not conflict with each other, the redundant limit position setting can improve the safety of the air valve controller and the associated mechanism. If the air valve is not provided with a limit position, the setting of the limit position 9 of the air valve controller is particularly critical.

[0032] See also Figure 1 , Figure 7-Figure 9 In this embodiment, an arc-shaped notch 33 corresponding to the limiter 9 is provided at the end of the main shaft gear 3c close to the main shaft 42, and the limiter 9 is set as a screw.

[0033] The working principle and use process of the utility model: the main shaft 42 can be controlled by the motor 2 to rotate clockwise or counterclockwise to open or close the air valve connected to the main shaft 42. The specific linkage process is: the motor 2 rotates, driving the driving gear 3a to rotate, the driving gear 3a drives the speed gear 3b to rotate through the large speed gear 31b meshing with it, the small speed gear 32b on the speed gear 3b drives the main shaft gear 3c meshing with it to rotate, the main shaft gear 3c drives the main shaft 42 to rotate, and the main shaft 42 drives the valve plate of the air valve connected to it to rotate. The air valve controller also realizes the process of manually rotating the main shaft 42. The specific process is: the pressure cap 7 touches the pressure plate 6 downward to disengage the speed change pinion 32b from the main shaft gear 3c and maintain this state, so that the main shaft gear 3c is in a freely rotatable state, and the rotating head 421 is controlled by hand or hand tools to rotate clockwise or counterclockwise, and stops rotating under the restriction of the limit 9. At the end of the clockwise rotation of the main shaft gear 3c, it abuts the first micro switch 8a for transmitting the opening signal, and at the end of the counterclockwise rotation of the main shaft gear 3c, it abuts the second micro switch 8b for transmitting the closing signal. Of course, according to actual needs, the clockwise rotation of the main shaft 42 can also correspond to the air valve closing action, and the corresponding first micro switch 8a is used to transmit the closing state signal, and the counterclockwise rotation of the main shaft 42 corresponds to the air valve opening action, and the corresponding second micro switch 8b is used to transmit the opening state signal.

[0034] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A new type of air valve controller, characterized in that: A top plate (11) and a bottom plate (12) are provided, a plurality of support columns (13) are provided between the top plate (11) and the bottom plate (12), a motor (2) is provided at the upper end of the top plate (11), a driving gear (3a) is provided at the lower end of the top plate (11), the motor (2) is connected to the driving gear (3a), a shaft (41) is fixedly provided between the top plate (11) and the bottom plate (12), and a first spring (5a) is sleeved on the lower part of the shaft (41); a main shaft (42) is rotatably provided between the top plate (11) and the bottom plate (12); a speed change gear (3b) is also provided, the center of the speed change gear (3b) is rotatably sleeved on the upper part of the shaft (41), and the speed change gear (3b) The transmission gear (3b) is movable up and down relative to the shaft (41); the speed change gear (3b) is provided with a large speed change gear (31b) and a small speed change gear (32b); the upper end of the large speed change gear (31b) is fixedly connected to the small speed change gear (32b), and the axes of the large speed change gear (31b) and the small speed change gear (32b) coincide with each other; the lower end of the large speed change gear (31b) is connected to a first spring (5a); the driving gear (3a) is meshed with the large speed change gear (31b); a main shaft gear (3c) is fixedly sleeved on the main shaft (42), and the small speed change gear (32b) is meshed with the main shaft gear (3c); a column (43) is further provided between the top plate (11) and the bottom plate (12), and the column (43) is fixedly arranged at the upper end of the bottom plate (12), the top plate (11) is provided with a notch (111) corresponding to the column (43), the column (43) passes through the notch (111) and protrudes above the top plate (11); a second spring (5b) is sleeved on the lower part of the column (43), the lower end of the top plate (11) is connected to a pressing plate (6), the pressing plate (6) is respectively provided with holes corresponding to the shaft rod (41) and the column (43), the end of the pressing plate (6) away from the shaft rod (41) extends downward and is folded back in a direction close to the shaft rod (41) to form a folded portion (61), the folded portion (61) is provided with a hole corresponding to the column (43), and the lower end of the folded portion (61) is connected to the first spring (5b). two springs (5b); the upper end of the speed change pinion (32b) is connected to a pressure plate (6); the upper end of the pressure plate (6) is connected to a pressure cap (7), the pressure cap (7) is provided with a pressure sheet (71) and a hollow rod (72), the lower end of the pressure sheet (71) is connected to the hollow rod (72), and the hollow rod (72) is sleeved on the column (43); the main shaft (42) passes through the top plate (11) and protrudes above the top plate (11), and the upper end of the main shaft (42) is connected to a rotating head (421); the pressure cap (7) contacts the pressure plate (6), so that the speed change pinion (32b) and the main shaft gear (3c) are disengaged, while the speed change gear (31b) and the driving gear (3a) remain in a meshing state.

2. A novel air valve controller according to claim 1, characterized in that: The main shaft gear (3c) is configured as a sector gear; the main shaft gear (3c) abuts against a first micro switch (8a) at the end point of clockwise rotation; and the main shaft gear (3c) abuts against a second micro switch (8b) at the end point of counterclockwise rotation.

3. A novel air valve controller according to any one of claims 1-2, characterized in that: The top plate (11) is provided with a limit position (9), and the limit position (9) limits the rotation angle of the main shaft gear (3c) in the clockwise direction and the rotation angle in the counterclockwise direction.

4. A novel air valve controller according to claim 3, characterized in that: An arc-shaped notch (33) corresponding to the limiter (9) is provided at the end of the main shaft gear (3c) close to the main shaft (42), and the limiter (9) is configured as a screw.

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