High-temperature fan air quantity variable-frequency speed regulation device

Abstract

The utility model relates to the technical field of fan speed regulation devices, in particular to a high-temperature fan air quantity variable-frequency speed regulation device which comprises a speed regulator, a U-shaped frame is arranged on the back face of the speed regulator, a round hole structure is formed in the outer side of the U-shaped frame, a connecting bolt is arranged in a round hole, and a mounting device is arranged at one end of the connecting bolt. The mounting device comprises a contact plate, a bottom frame and a probe rod, the bottom end of the contact plate is fixedly connected with a top frame, the top frame is of a hollow structure, a spring is fixed to the middle of the top frame, a user can mount and fix the variable-frequency governor to a designated position through the mounting device, and the governor and the mounting device are connected through a U-shaped frame, a connecting bolt and a connecting frame. And in the mounting device, the contact plate and the bottom frame structure with the probe rod are connected through the spring, through the limiting function of the limiting ring, the situation that the probe rod shakes left and right in the moving process is avoided, and the up-down cushioning effect of the contact plate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fan speed regulating devices, and particularly relates to a variable frequency speed regulating device for the air volume of a high-temperature fan. Background Art

[0002] Under design conditions, a fan with a wind pressure of 30 kPa to 200 KPa or a compression ratio e = 1.3 to 3 belongs to the category of high-pressure fans. Currently, in the industry, a ring-type vacuum pump is generally classified as a high-pressure fan. A high-pressure fan, also called a high-pressure blower, is different from a general centrifugal blower.

[0003] In some projects, existing high-pressure fans need to be used with variable frequency speed regulation. However, the rigid connection of the existing variable frequency speed regulation device will cause the vibration force of the fan to affect the detection elements in the electrical appliances and the loosening and damage of the connecting parts. Summary of the Utility Model

[0004] Technical Problem to be Solved

[0005] In view of the above-mentioned drawbacks of the prior art, the utility model provides a variable frequency speed regulating device for the air volume of a high-temperature fan, which can effectively solve the problem that the rigid connection in the prior art causes the vibration to affect the connection effect.

[0006] Technical Solution

[0007] To achieve the above object, the utility model is realized through the following technical solutions:

[0008] The utility model provides a variable frequency speed regulating device for the air volume of a high-temperature fan, including a speed regulator. A U-shaped frame is arranged on the back of the speed regulator. A circular hole structure is arranged on the outer side of the U-shaped frame, and a connecting bolt is arranged in the circular hole. One end of the connecting bolt is provided with an installation device, which includes a contact plate, a bottom frame and a probe rod. The bottom end of the contact plate is fixedly connected to the top frame. The top frame is a hollow structure, and a spring is fixed in the middle of the top frame. The bottom end of the probe rod is fixedly connected to the top end of the bottom frame. The probe rod is an L-shaped structure, and the bottom end of the probe rod is fixedly connected to the top end of the spring. The front end of the bottom frame is fixedly connected to a connecting frame.

[0009] Further, two groups of the installation devices are provided, and the two groups of installation devices are symmetrically fixed on the back of the speed regulator.

[0010] Further, a limiting ring structure is arranged on the back of the top frame, and the probe rod is sleeved in the limiting ring.

[0011] Further, a groove structure is arranged in the middle of each connecting frame, and one end of the connecting bolt is arranged in the groove.

[0012] Further, one end of the contact plate is fixedly connected to an external structure through a connecting bolt.

[0013] Furthermore, two sets of the probe rod and the spring are oppositely arranged.

[0014] Beneficial effects

[0015] The technical solution provided by the present utility model has the following beneficial effects compared with the known public technology:

[0016] With the installation device provided by the present utility model, the user can install and fix the variable frequency speed regulator at a specified position through the installation device. The speed regulator and the installation device are connected by a U-shaped frame - connecting bolt - connecting frame and limited and fixed by a locking nut. In the installation device, the contact plate and the bottom frame structure with a probe rod are connected by a spring. Through the limiting function of the limiting ring, the situation that the probe rod sways left and right during the movement is avoided, and the up and down shock absorption effect of the contact plate is improved. Description of the drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a structural schematic diagram of the present utility model;

[0019] Figure 2 It is a side view of the structure of the present utility model;

[0020] Figure 3 It is one of the structural exploded views of the present utility model;

[0021] Figure 4 It is the second of the structural exploded views of the present utility model;

[0022] Figure 5 It is a structural schematic diagram of the installation device of the present utility model.

[0023] The reference numerals in the drawings respectively represent: 1, speed regulator; 11, U-shaped frame; 12, connecting bolt; 2, installation device; 21, contact plate; 211, top frame; 22, bottom frame; 23, probe rod; 24, connecting frame; 25, spring. Specific implementation manners

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] The present utility model will be further described below with reference to the embodiments.

[0026] Embodiment: A variable frequency speed regulation device for the air volume of a high-temperature fan. Refer to the attached Figure 1 - attached Figure 5 , including a speed regulator 1. A U-shaped frame 11 is provided on the back of the speed regulator 1. A circular hole structure is provided on the outer side of the U-shaped frame 11, and a connecting bolt 12 is provided in the circular hole. One end of the connecting bolt 12 is provided with a mounting device 2. The mounting device 2 includes a contact plate 21, a bottom frame 22 and a probe rod 23. The bottom end of the contact plate 21 is fixedly connected to the top frame 211. The top frame 211 is a hollow structure, and a spring 25 is fixed in the middle of the top frame 211. The bottom end of the probe rod 23 is fixedly connected to the top end of the bottom frame 22. The probe rod 23 is an L-shaped structure, and the bottom end of the probe rod 23 is fixedly connected to the top end of the spring 25. The front end of the bottom frame 22 is fixedly connected to a connecting frame 24;

[0027] Two sets of the mounting devices 2 are provided, and the two sets of mounting devices 2 are symmetrically fixed on the back of the speed regulator 1.

[0028] A limiting ring structure is provided on the back of the top frame 211, and the probe rod 23 is sleeved in the limiting ring; a groove structure is provided in the middle of each connecting frame 24, and one end of the connecting bolt 12 is provided in the groove; one end of the contact plate 21 is fixedly connected to an external structure through the connecting bolt 12; two sets of the probe rod 23 and the spring 25 are oppositely arranged; through the provided mounting device 2, the user can install and fix the variable frequency speed regulator 1 at a specified position through the mounting device 2. The speed regulator 1 and the mounting device 2 are connected through the U-shaped frame 11 - the connecting bolt 12 - the connecting frame 24, and are limited and fixed through a locking nut. In the mounting device 2, the contact plate 21 and the bottom frame 22 structure with the probe rod 23 are connected through the spring 25. Through the limiting function of the limiting ring, the situation that the probe rod 23 shakes left and right during the movement is avoided, and the up-and-down shock absorption effect of the contact plate 21 is improved.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A variable frequency speed regulation device for the air volume of a high-temperature fan, characterized in that, It includes a speed governor (1). A U-shaped frame (11) is arranged on the back of the speed governor (1). A circular hole structure is formed on the outer side of the U-shaped frame (11), and a connecting bolt (12) is arranged in the circular hole. One end of the connecting bolt (12) is provided with an installation device (2). The installation device (2) includes a contact plate (21), a bottom frame (22) and a probe rod (23). The bottom end of the contact plate (21) is fixedly connected to a top frame (211). The top frame (211) is a hollow structure, and a spring (25) is fixed in the middle of the top frame (211). The bottom end of the probe rod (23) is fixedly connected to the top end of the bottom frame (22). The probe rod (23) is an L-shaped structure, and the bottom end of the probe rod (23) is fixedly connected to the top end of the spring (25). The front end of the bottom frame (22) is fixedly connected to a connecting frame (24).

2. The variable frequency speed regulation device for the air volume of a high-temperature fan according to claim 1, characterized in that, Two sets of the installation devices (2) are provided, and the two sets of installation devices (2) are symmetrically fixed on the back of the speed governor (1).

3. The variable frequency speed regulation device for the air volume of a high-temperature fan according to claim 1, characterized in that, A limiting ring structure is arranged on the back of the top frame (211), and the probe rod (23) is sleeved in the limiting ring.

4. A variable frequency speed regulation device for the air volume of a high-temperature fan according to claim 1, characterized in that, A groove structure is formed in the middle of each connecting frame (24), and one end of the connecting bolt (12) is arranged in the groove.

5. The variable frequency speed regulation device for the air volume of a high-temperature fan according to claim 4, characterized in that, One end of the contact plate (21) is fixedly connected to an external structure through the connecting bolt (12).

6. The variable frequency speed regulation device for the air volume of a high-temperature fan according to claim 1, characterized in that, Two sets of the probe rods (23) and the springs (25) are oppositely arranged respectively.

Images