A push rod motor

Abstract

This utility model relates to the field of motor technology, specifically to a push rod motor, including a base plate and a motor body fixedly mounted on the base plate, as well as a support and protection part, a lifting part, an output part, a transmission part, and a limiting part. The lifting part includes a drive assembly and a lifting column. The drive assembly is used to drive the lifting column to rise and fall. When the lifting column rises, its end extends out of the support and protection part; when the lifting column falls, its end retracts into the support and protection part. The transmission part is located between the output part and the drive assembly, transmitting the power from the output part to the drive assembly. This utility model, by setting multiple intermeshing limiting wheels and transmission wheels, causes the first transmission wheel to rotate along its axis, thereby driving the driven wheel to rotate in the same plane, and thus driving the lifting column to move in a straight line, extending or retracting into the guide cylinder, precisely controlling the core of the heating valve, and driving the heating valve to open or close, thereby improving the accuracy of the motor.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a push rod motor. Background Technology

[0002] Winters in northern regions are quite cold, and to meet residents' heating needs, heating is typically supplied to multiple locations, including residential areas, workplaces, and public spaces. The valves for these heating systems are mostly remotely controlled.

[0003] Remote-controlled valves are generally driven by motors. Gears are fixedly mounted on the motor shaft and also on the valve core, with these gears meshing. When the motor drives its shaft to rotate, the valve core moves via gear transmission, controlling the flow and switching of hot water or other heat media in the pipes, thus precisely controlling the temperature of the heating area. Its core function is to replace traditional manual valves, improving the intelligence, convenience, and energy efficiency of the heating system.

[0004] The motor's shaft and the valve core are directly driven by gears, without a limiting mechanism to restrict the gears outside the core. This results in the core being significantly affected by the motor shaft. Repeated start-stop cycles easily cause shaft wear, and the motor's heat further exacerbates this wear, leading to radial runout of the gears. When the motor drives the valve core, this radial runout of the gears can cause the valve core to not move properly, reducing motor accuracy and affecting the valve's opening and closing. Utility Model Content

[0005] The main objective of this invention is to provide a push rod motor to solve the problems raised in related technologies.

[0006] To achieve the above objectives, according to one aspect of the present invention, a push rod motor is provided, comprising a base plate and a motor body fixedly disposed on the base plate, and further comprising: The lifting unit includes a drive assembly and a lifting column. The drive assembly is used to drive the lifting column to rise and fall. When the lifting column rises, its end extends out of the support and protection part. When the lifting column falls, its end retracts into the support and protection part. An output section is provided between the motor body and the lifting section, and is used to transfer the energy of the motor body to the lifting section. A transmission unit is provided between the output unit and the drive assembly, which transmits the power from the output unit to the drive assembly; A limiting part is provided on one side of the transmission part to provide support for the transmission part and limit its rotation direction; A support and protection section is provided to isolate the output section, transmission section and limiting section from the outside world.

[0007] Furthermore, the support and protection part includes a protective shell, a guide cylinder is fixedly provided on the upper part of the protective shell, the output part is located inside the motor body and the protective shell, the limiting part and the transmission part are located inside the protective shell, and the lifting part is located inside the protective shell and the guide cylinder.

[0008] Furthermore, the lifting column is slidably disposed inside the guide cylinder, and a plurality of guide strips are fixedly provided on the outer wall of the lifting column along the vertical direction. The inner wall of the guide cylinder is provided with guide grooves corresponding to the guide strips, and the guide strips can slide up and down in the guide grooves.

[0009] Furthermore, the outer wall of the lifting column is provided with several limiting grooves, and the upper end of the inner wall of the guide cylinder is fixedly provided with limiting blocks at the corresponding positions of the limiting grooves. The limiting blocks can slide back and forth in the limiting grooves.

[0010] Furthermore, the drive assembly includes a driven wheel and a threaded rod, the threaded rod being coaxially fixed above the driven wheel, and a third central shaft being fixedly provided at the axis of the driven wheel, the bottom end of the third central shaft being rotatably connected to the protective shell.

[0011] Furthermore, the lifting column is hollow inside and open at the bottom, and the inner wall of the lifting column is provided with threads that cooperate with the threaded rod. The threaded rod extends into the lifting column from the bottom and is threadedly connected to the lifting column.

[0012] Furthermore, the output section includes a motor shaft, a support ring is fixedly provided on the outer ring of the upper end of the motor shaft, a drive wheel is provided above the support ring, and the drive wheel is fixedly connected to the motor shaft.

[0013] Furthermore, the transmission unit includes a first transmission wheel, a second transmission wheel, a third transmission wheel, a fourth transmission wheel, a fifth transmission wheel, and a sixth transmission wheel that are coaxially fixedly arranged. The sixth transmission wheel meshes with the driving wheel, and the first transmission wheel meshes with the driven wheel.

[0014] Furthermore, a first central shaft for supporting the transmission part is fixedly provided at the central shaft of the transmission part, and the first central shaft is rotatably connected to the protective shell.

[0015] Furthermore, a second central shaft for supporting the limiting part is fixedly provided at the central shaft of the limiting part. The second central shaft is rotatably connected to the protective shell. The limiting part includes a first limiting wheel, a second limiting wheel, a third limiting wheel, and a fourth limiting wheel that are coaxially fixed. The first limiting wheel meshes with a fifth transmission wheel, the second limiting wheel meshes with a fourth transmission wheel, the third limiting wheel meshes with a third transmission wheel, and the fourth limiting wheel meshes with a second transmission wheel.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This invention uses multiple meshing limit wheels and transmission wheels to limit the first transmission wheel, causing it to rotate along its axis. This drives the driven wheel to rotate in the same plane, which in turn moves the lifting column in a straight line, extending or retracting into the guide cylinder. This precisely controls the core of the heating valve, causing the valve to open or close, thus improving the motor's accuracy. Furthermore, by adjusting the diameter and ratio of each transmission wheel and limit wheel, the transmission ratio can be controlled, adjusting the motor's drive control over the lifting part, and regulating the extension and retraction length and speed of the lifting part. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the internal structure of this utility model.

[0018] Figure label: 1. Base plate; 2. Motor body; 3. Protective shell; 4. Guide cylinder; 5. Output section; 51. Motor shaft; 52. Support ring; 53. Drive wheel; 6. Limiting section; 61. First limiting wheel; 62. Second limiting wheel; 63. Third limiting wheel; 64. Fourth limiting wheel; 7. Transmission section; 71. First transmission wheel; 72. Second transmission wheel; 73. Third transmission wheel; 74. Fourth transmission wheel; 75. Fifth transmission wheel; 76. Sixth transmission wheel; 8. Lifting section; 81. Driven wheel; 82. Threaded rod; 83. Lifting column; 84. Guide bar; 85. Limiting groove; 9. First central shaft; 10. Second central shaft; 11. Third central shaft. Detailed Implementation

[0019] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0020] This embodiment provides a push rod motor, including a base plate 1 and a motor body 2 fixedly mounted on the base plate 1, and further including: The lifting part 8 is used to push the heating valve. The lifting part 8 includes a drive assembly and a lifting column 83. The drive assembly is used to drive the lifting column 83 to rise and fall. When the lifting column 83 rises, its end extends out of the guide cylinder 4. When the lifting column 83 falls, its end retracts into the guide cylinder 4, thereby driving the heating valve to open or close. The output section 5 is located between the motor body 2 and the lifting section 8, and is used to transmit the energy of the motor body 2 to the lifting section 8. The transmission unit 7 is located between the output unit 5 and the drive assembly, and transmits the power from the output unit 5 to the drive assembly. The limiting part 6 is provided on one side of the transmission part 7, providing support for the transmission part 7 and limiting its rotation direction.

[0021] The support and protection part is used to isolate the output part 5, the transmission part 7 and the limiting part 6 from the outside.

[0022] like Figure 1 As shown, the support and protection part includes a base plate 1, a motor body 2 fixedly mounted on the base plate 1, a protective shell 3 fixedly mounted above the motor body 2, a guide cylinder 4 fixedly mounted above the protective shell 3, an output part 5 located inside the motor body 2 and the protective shell 3, a limiting part 6 and a transmission part 7 located inside the protective shell 3, and a lifting part 8 located inside the protective shell 3 and the guide cylinder 4.

[0023] like Figure 2 As shown, the lifting column 83 is slidably disposed inside the guide cylinder 4. In order to restrict the lifting column 83 from rotating synchronously with the guide cylinder 4, several guide bars 84 are fixedly disposed vertically on the outer wall of the lifting column 83, and guide grooves for accommodating the guide bars 84 are provided on the inner wall of the guide cylinder 4 at the corresponding positions. The guide bars 84 can slide up and down in the guide grooves. When the threaded rod 82 rotates, the lifting column 83 cannot rotate because it is restricted by the guide bars 84 and the guide grooves. Therefore, the lifting column 83 is pushed by the threaded rod 82 to slide up and down in the guide cylinder 4, extending out or retracting into the guide cylinder 4.

[0024] The lifting column 83 is hollow inside and open at the bottom. The inner wall of the lifting column 83 is provided with threads that cooperate with the threaded rod 82. The threaded rod 82 extends into the lifting column 83 from the bottom and is threadedly connected to the lifting column 83.

[0025] To prevent the lifting column 83 from falling out of the guide cylinder 4, several limiting grooves 85 are provided on the outer wall of the lifting column 83. Limiting blocks are fixed at the upper end of the inner wall of the guide cylinder 4 corresponding to the limiting grooves 85, and the limiting blocks can slide back and forth within the limiting grooves 85. The limiting grooves 85 are located in the middle of the outer wall of the lifting column 83, and their length is less than the height of the lifting column 83. When the lifting column 83 rises to a certain height, the limiting blocks abut against the bottom of the limiting grooves 85, preventing the lifting column 83 from rising further; when the lifting column 83 descends to a certain height, the limiting blocks abut against the top of the limiting grooves 85, preventing the lifting column 83 from descending further, thus preventing the lifting column 83 from squeezing the driven wheel 81 and affecting its rotation. The limiting blocks restrict the sliding of the lifting column 83 within a certain stroke through the limiting grooves 85.

[0026] like Figure 3As shown, the drive assembly includes a driven wheel 81 and a threaded rod 82. The driven wheel 81 meshes with the first transmission wheel 71. The threaded rod 82 is coaxially fixed above the driven wheel 81. The first transmission wheel 71 drives the driven wheel 81 to rotate, and the driven wheel 81 drives the threaded rod 82 to rotate, thereby raising or lowering the lifting column 83. A third central shaft 11 is fixedly provided at the axis of the driven wheel 81. The bottom end of the third central shaft 11 is rotatably connected to the protective shell 3, so that the driven wheel 81 can rotate inside the protective shell 3.

[0027] The output unit 5 includes a motor shaft 51. A support ring 52 is fixedly mounted on the outer ring of the upper end of the motor shaft 51. The support ring 52 is rotatably connected to the outer shell of the motor body 2 and is used to support the motor shaft 51 and prevent the motor shaft 51 from tilting. A drive wheel 53 is mounted above the support ring 52 and is fixedly connected to the motor shaft 51. The motor body 2 drives the motor shaft 51 to rotate, thereby driving the drive wheel 53 to rotate. The drive wheel 53 meshes with a sixth transmission wheel 76, which drives the transmission unit 7 to rotate, thereby driving the driven wheel 81 to rotate.

[0028] The transmission unit 7 includes a first transmission wheel 71, a second transmission wheel 72, a third transmission wheel 73, a fourth transmission wheel 74, a fifth transmission wheel 75, and a sixth transmission wheel 76, which are coaxially fixedly arranged. A first central shaft 9 for supporting the transmission unit 7 is fixedly provided at the central shaft of the transmission unit 7, and the first central shaft 9 is rotatably connected to the protective shell 3.

[0029] A second central shaft 10 for supporting the limiting part 6 is fixedly provided at the central shaft. The second central shaft 10 is rotatably connected to the protective shell 3. The limiting part 6 includes a first limiting wheel 61, a second limiting wheel 62, a third limiting wheel 63, and a fourth limiting wheel 64, which are coaxially fixed. The first limiting wheel 61 meshes with the fifth transmission wheel 75 and supports the fifth transmission wheel 75 from the side, allowing it to rotate along its own axis. The second limiting wheel 62 meshes with the fourth transmission wheel 74 and supports the fourth transmission wheel 74 from the side, allowing it to rotate along its own axis. The third limiting wheel 63 meshes with the third transmission wheel 73 and supports the third transmission wheel 73 from the side, allowing it to rotate along its own axis. The fourth limiting wheel 64 meshes with the second transmission wheel 72 and supports the second transmission wheel 72 from the side, allowing it to rotate along its own axis. The transmission wheel is supported by a corresponding limit wheel to prevent radial sway of the transmission wheel and ensure that the first transmission wheel 71 rotates stably around its axis, thereby driving the driven wheel 81 to rotate in the same plane, which in turn drives the lifting column 83 to move in a straight line, extending or retracting into the guide cylinder 4, precisely controlling the core of the heating valve, driving the heating valve to open or close, and improving the accuracy of the motor.

[0030] It should be noted that, in order to facilitate the demonstration of the structural scheme of this application, in Figure 2 and Figure 3In this paper, conventional motor components such as rotor, stator, and brushes inside the motor body 2 are omitted, but this does not mean that the push rod motor of this application does not have conventional necessary motor components. Those skilled in the art can implement the technical solution of this application based on the prior art.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A push rod motor, comprising a base plate (1) and a motor body (2) fixedly disposed on the base plate (1), characterized in that, Also includes: The lifting part (8) includes a drive assembly and a lifting column (83). The drive assembly is used to drive the lifting column (83) to rise and fall. When the lifting column (83) rises, its end extends out of the support and protection part. When the lifting column (83) falls, its end retracts into the support and protection part. Output section (5), which is located between the motor body (2) and the lifting section (8), is used to transmit the energy of the motor body (2) to the lifting section (8). The transmission part (7) is located between the output part (5) and the drive assembly, and transmits the power of the output part (5) to the drive assembly. The limiting part (6) is provided on one side of the transmission part (7) to provide support for the transmission part (7) and limit its rotation direction; The support and protection part is used to separate the output part (5), the transmission part (7) and the limiting part (6) from the outside.

2. The push rod motor according to claim 1, characterized in that, The support and protection part includes a protective shell (3), a guide cylinder (4) is fixedly provided above the protective shell (3), the output part (5) is located inside the motor body (2) and the protective shell (3), the limiting part (6) and the transmission part (7) are located inside the protective shell (3), and the lifting part (8) is located inside the protective shell (3) and the guide cylinder (4).

3. The push rod motor according to claim 2, characterized in that, The lifting column (83) is slidably disposed inside the guide cylinder (4). Several guide strips (84) are fixedly disposed vertically on the outer wall of the lifting column (83). The inner wall of the guide cylinder (4) is provided with guide grooves corresponding to the guide strips (84) to accommodate the guide strips (84). The guide strips (84) can slide up and down in the guide grooves.

4. The push rod motor according to claim 2, characterized in that, The outer wall of the lifting column (83) is provided with several limiting grooves (85), and the upper end of the inner wall of the guide cylinder (4) is fixedly provided with limiting blocks at the corresponding positions of the limiting grooves (85). The limiting blocks can slide back and forth in the limiting grooves (85).

5. The push rod motor according to claim 2, characterized in that, The drive assembly includes a driven wheel (81) and a threaded rod (82). The threaded rod (82) is coaxially fixed above the driven wheel (81). A third central shaft (11) is fixed at the center of the driven wheel (81). The bottom end of the third central shaft (11) is rotatably connected to the protective shell (3).

6. The push rod motor according to claim 5, characterized in that, The lifting column (83) is hollow inside and open at the bottom. The inner wall of the lifting column (83) is provided with a thread that mates with the threaded rod (82). The threaded rod (82) extends into the lifting column (83) from the bottom and is threadedly connected to the lifting column (83).

7. The push rod motor according to claim 2, characterized in that, The output section (5) includes a motor shaft (51), a support ring (52) is fixedly provided on the outer ring of the upper end of the motor shaft (51), and a drive wheel (53) is provided above the support ring (52). The drive wheel (53) is fixedly connected to the motor shaft (51).

8. The push rod motor according to claim 7, characterized in that, The transmission unit (7) includes a first transmission wheel (71), a second transmission wheel (72), a third transmission wheel (73), a fourth transmission wheel (74), a fifth transmission wheel (75), and a sixth transmission wheel (76) that are coaxially fixed. The sixth transmission wheel (76) meshes with the driving wheel (53), and the first transmission wheel (71) meshes with the driven wheel (81).

9. The push rod motor according to claim 2, characterized in that, The transmission part (7) is fixedly provided with a first central shaft (9) for supporting the transmission part (7), and the first central shaft (9) is rotatably connected to the protective shell (3).

10. The push rod motor according to claim 1, characterized in that, The limiting part (6) is fixedly provided with a second central shaft (10) for supporting the limiting part (6). The second central shaft (10) is rotatably connected to the protective shell (3). The limiting part (6) includes a first limiting wheel (61), a second limiting wheel (62), a third limiting wheel (63), and a fourth limiting wheel (64) fixedly arranged coaxially. The first limiting wheel (61) meshes with the fifth transmission wheel (75), the second limiting wheel (62) meshes with the fourth transmission wheel (74), the third limiting wheel (63) meshes with the third transmission wheel (73), and the fourth limiting wheel (64) meshes with the second transmission wheel (72).

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