CN218151663U - Centrifugal fan easy to assemble - Google Patents

Abstract

The utility model belongs to the technical field of the centrifugal fan technique and specifically relates to a centrifugal fan easy to assemble, including fan casing, fan driving motor and fan mount pad, connect on the terminal surface of fan mount pad through scissors formula adjusting part on the motor support post, wherein fixedly connected with fan driving motor on the terminal surface of motor support post, the utility model discloses a design a centrifugal fan easy to assemble, utilize the height adjusting lever subassembly and the mutual cooperation of scissors formula adjusting part among the device, realized the altitude mixture control from the fan, satisfied different work demands, effectual solved because the height of centrifugal fan mount pad is fixed unadjustable, when too high from the fan mounted position, need seek the supporting seat in addition, place between mounted position and centrifugal fan mount pad, come to adjust from the whole height of fan, when crossing low from the fan mounted position, can't realize the problem of installation to reach easy to assemble's effect.

Description

A convenient centrifugal fan

technical field

The utility model relates to the technical field of centrifugal fans, in particular to a conveniently installed centrifugal fan.

Background technique

At present, the centrifugal fan includes the centrifugal fan casing, the impeller of the centrifugal fan, the driving motor of the centrifugal fan and the mounting seat of the centrifugal fan. Since the height of the mounting seat of the centrifugal fan is fixed and cannot be adjusted, when the installation position of the centrifugal fan is too high, it is necessary to find another support seat , placed between the installation position and the centrifugal fan mounting seat to adjust the overall height from the fan. When the installation position from the fan is too low, the installation cannot be achieved, thus achieving the problem of inconvenient installation.

To sum up, the utility model solves the existing problems by designing a conveniently installed centrifugal fan.

Utility model content

The purpose of this utility model is to provide a conveniently installed centrifugal fan to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A conveniently installed centrifugal fan, comprising a fan casing, a fan drive motor and a fan mounting base, the end surface of the fan mounting base is connected to the motor support column through a scissor-type adjustment assembly, wherein the end surface of the motor support column is fixedly connected There is a fan drive motor, one side of the scissor-type adjustment assembly and two sets of height adjustment rod assemblies are symmetrically arranged on the end face of the fan mounting base, and the ends of the two sets of height adjustment rod assemblies are fixedly connected to the bottom of the fan casing ;

The scissor-type adjustment assembly includes an upper rectangular frame, a lower rectangular frame and two sets of scissor-type brackets, wherein the structure of the upper rectangular frame and the lower rectangular frame is the same, and the opposite side walls of the upper rectangular frame and the lower rectangular frame are provided with The chute, the center of the side wall of the lower rectangular frame and parallel to the chute are provided with an adjusting screw, wherein one end of the adjusting screw runs through the lower rectangular frame and the transmission rod in turn, and extends to the other side of the transmission rod through the bearing sleeve Connected to the side wall inside the lower rectangular frame, the two ends of the transmission rod are slidably connected to the inside of the chute opened on the side wall of the lower rectangular frame through the lower slider, wherein the outer wall of the transmission rod is also located at the connection between the transmission rod and the lower slider. Rotate at the bottom of one pole in the scissors-type bracket, and the top of the other pole in the scissors-type bracket is directly above the lower slider and is connected to the upper slider through a rotating shaft, wherein the upper slider is slidably connected Inside the chute opened on the side wall of the upper rectangular frame, the ends of the poles in the scissors-type bracket and the opposite ends of the lower slider and the upper slider are connected to the inside of the U-shaped frame by rotating shafts, wherein the U-shaped The frame is fixedly connected to the upper rectangular frame and the inner side wall of the lower rectangular frame, and the upper rectangular frame is connected to the bottom of the motor support column through a support plate;

The height adjustment rod assembly includes a support sleeve fixedly connected to the end surface of the fan mounting base, wherein the inside of the support sleeve slides up and down to connect the support rod, and the opposite side walls of the support sleeve are symmetrically provided with adjustment grooves, so that The support rod is connected to the inside of the adjustment groove through a positioning screw, and the two ends of the support rod respectively extend through the adjustment groove to the outside of the support rod and are fixedly connected with nuts.

As a preferred solution of the present invention, the inside of the fan casing is provided with a centrifugal fan impeller, wherein the drive shaft of the fan drive motor penetrates to the inside of the fan casing and is fixedly connected to the centrifugal fan impeller, and the drive shaft of the fan drive motor The connection mode with the casing of the fan casing is rotational connection, and the casing of the fan driving motor is fixedly connected to the casing of the fan driving motor.

As a preferred solution of the present invention, the outside of the scissor-type adjustment assembly is fixedly connected to the machine cover on the end surface of the fan casing, wherein one end of the motor support column penetrates through the end surface of the machine cover, and extends to the outside of the machine cover for fixing Connected to the bottom of the blower drive motor.

As a preferred solution of the present invention, the positioning screw is slidably connected inside the adjustment groove, and the positioning screw is fixedly connected to the support rod.

As a preferred solution of the present invention, one end of the adjusting screw penetrates to the outside of the hood, wherein one end of the adjusting screw outside the hood passes through a hexagonal prism structure.

As a preferred solution of the utility model, the connection mode between the adjustment screw rod and the machine cover, the lower rectangular frame and the bearing sleeve is rotational connection, and the connection mode between the adjustment screw rod and the transmission rod is thread connection.

As a preferred solution of the present invention, the scissors-type bracket is composed of two identical connecting rods, wherein the two identical connecting rods are rotatably connected by a rotating shaft, and the centers of the two groups of scissor-type brackets are rotatably connected by a support column.

Compared with the prior art, the beneficial effects of the utility model are:

1. In this utility model, by designing a conveniently installed centrifugal fan, the height adjustment rod assembly and the scissor-type adjustment assembly in the device cooperate with each other to realize the height adjustment of the fan to meet different work requirements and effectively The solution is that since the height of the centrifugal fan mounting base is fixed and cannot be adjusted, when the installation position of the centrifugal fan is too high, it is necessary to find another support base and place it between the installation position and the centrifugal fan mounting base to adjust the overall height of the centrifugal fan , When the installation position of the fan is too low, the problem of installation cannot be realized, so as to achieve the effect of convenient installation.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model;

Fig. 2 is the utility model Fig. 1 partial structural representation;

Fig. 3 is a structural schematic diagram of the scissors-type adjustment assembly of the utility model;

Fig. 4 is a schematic structural diagram of part of Fig. 3 of the utility model.

In the figure: 1. Fan casing; 2. Fan drive motor; 3. Fan mounting base; 4. Scissor-type adjustment assembly; 5. Motor support column; 6. Height adjustment rod assembly; 7. Machine cover; 401, upper rectangle Frame; 402, lower rectangular frame; 403, scissors bracket; 404, chute; 405, adjusting screw; 406, transmission rod; 407, bearing sleeve; 408, lower slider; 409, upper slider; 410, U-shaped Frame; 411, support plate; 601, support sleeve; 602, support rod; 603, adjustment slot; 604, positioning screw; 605, nut.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the present invention The embodiments in the utility model, and all other embodiments obtained by persons of ordinary skill in the art without creative efforts, all belong to the scope of protection of the utility model.

In order to facilitate the understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings, and several embodiments of the utility model are provided. However, the utility model can be realized in many different forms, and is not limited to The embodiments described herein, on the contrary, are provided for the purpose of making the disclosure of the present utility model more thorough and comprehensive.

It should be noted that when an element is said to be "fixed on" another element, it may be directly on the other element or there may be an intervening element, and when an element is said to be "connected" to another element, it may The terms "vertical", "horizontal", "left", "right" and similar expressions are used herein for the purpose of illustration only.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention, and the terms used in the description of the present invention herein are only to describe specific The purpose of the embodiment is not intended to limit the utility model, and the term "and/or" used herein includes any and all combinations of one or more related listed items.

For the embodiment, please refer to Fig. 1-4, the utility model provides a technical solution:

A conveniently installed centrifugal fan, comprising a fan casing 1, a fan drive motor 2 and a fan mounting base 3, the end face of the fan mounting base 3 is connected to a motor support column 5 through a scissor-type adjustment assembly 4, wherein the motor support column 5 The fan drive motor 2 is fixedly connected to the end surface of the fan mounting base 3, and two sets of height adjustment rod assemblies 6 are symmetrically arranged on one side of the scissors adjustment assembly 4 and on the end face of the fan mounting base 3, wherein the ends of the two sets of height adjustment rod assemblies 6 fixedly connected to the bottom of the fan casing 1;

The scissors adjustment assembly 4 includes an upper rectangular frame 401, a lower rectangular frame 402 and two groups of scissor-type supports 403, wherein the upper rectangular frame 401 has the same structure as the lower rectangular frame 402. The walls are all provided with chute 404, and the center of the side wall of the lower rectangular frame 402 and parallel to the chute 404 are provided with an adjusting screw 405, wherein one end of the adjusting screw 405 passes through the lower rectangular frame 402 and the transmission rod 406 in turn, and extends to The other side of the transmission rod 406 is connected to the inner side wall of the lower rectangular frame 402 through the bearing sleeve 407, and the two ends of the transmission rod 406 are respectively slidably connected to the inside of the chute 404 provided by the side wall of the lower rectangular frame 402 through the lower slider 408, wherein The outer wall of the transmission rod 406 and the connection between the transmission rod 406 and the lower slider 408 are rotatably connected to the bottom of a pole in the scissors-type bracket 403, and the lower slider 408 is just above the other pole in the scissors-type bracket 403. The top of the top is connected to the upper slider 409 through a rotating shaft, wherein the upper slider 409 is slidably connected to the inside of the chute 404 provided on the side wall of the upper rectangular frame 401, and the scissors-type bracket 403 is connected with the lower slider 408 and the upper slider respectively. The opposite ends of the sliders 409 are connected to the inside of the U-shaped frame 410 through rotating shafts, wherein the U-shaped frame 410 is correspondingly fixedly connected to the inner side walls of the upper rectangular frame 401 and the lower rectangular frame 402, and the upper rectangular frame 401 passes through The support plate 411 is connected to the bottom of the motor support column 5;

Specifically, with reference to Fig. 1, Fig. 3 and Fig. 4, one end of the adjusting screw 405 penetrates to the outside of the hood 7, wherein the end of the adjusting screw 405 located outside the hood 7 passes through a hexagonal prism structure, which is convenient to use a wrench to act on the six prisms. The outer wall of the prism structure rotates the adjusting screw rod 405, the connecting mode of the adjusting screw rod 405 and the machine cover 7, the lower rectangular frame 402, and the bearing sleeve 407 is rotational connection, and the connecting mode of the adjusting screw rod 405 and the transmission rod 406 is a threaded connection, The scissors-type bracket 403 is composed of two identical connecting rods, wherein the two identical connecting rods are connected through the rotation of the rotating shaft, and the centers of the two sets of scissors-type brackets 403 are connected through the rotation of the supporting column, and the wrench acts on the outer wall of the hexagonal prism structure, and the rotation adjustment The screw rod 405 drives the adjustment screw rod 405 to rotate, thereby driving the transmission rod 406 to move left and right, and the transmission rod 4 to move left and right, driving two sets of sliders connected to the two ends of the scissor-type bracket 403 to open on the inner side walls of the upper rectangular frame 401 and the lower rectangular frame 402. The chute 404 slides inside, and rotates correspondingly inside the U-shaped frame 410, thereby realizing the lifting or lowering of the upper rectangular frame 401, that is, driving the motor support column 5 connected to the support plate 411 to move up and down, thereby The height adjustment of the fan casing 1 and the fan drive motor 2 is realized, after the height adjustment is completed.

Specifically, referring to Fig. 1 and Fig. 2, the height adjustment rod assembly 6 includes a support sleeve 601 fixedly connected to the end surface of the fan mounting base 3, wherein the inside of the support sleeve 601 slides up and down and is connected with a support rod 602, and the support sleeve 601 Adjusting grooves 603 are symmetrically arranged on the opposite side walls, and the supporting rod 602 is connected inside the adjusting groove 603 through a positioning screw 604, wherein the two ends of the supporting rod 602 respectively extend to the outside of the supporting rod 602 through the adjusting groove 603 and are fixedly connected with nuts 605, the positioning screw 604 is slidably connected to the inside of the adjustment groove 603, the positioning screw 604 is fixedly connected to the support rod 602, the wrench is loosened, and the nut 605 on the positioning screw 604 keeps the support rod 602 free to move inside the support sleeve 601 .

As a further preferred solution of the present invention, the inside of the fan casing 1 is provided with a centrifugal fan impeller, wherein the drive shaft of the fan drive motor 2 penetrates to the inside of the fan casing 1 and is fixedly connected to the centrifugal fan impeller, and the fan drive motor 2 The connection mode between the drive shaft and the casing of the fan casing 1 is rotational connection, and the casing of the fan driving motor 2 is fixedly connected to the casing of the fan driving motor 2.

As a further preferred solution of the present invention, the outside of the scissor-type adjustment assembly 4 is fixedly connected to the machine cover 7 on the end surface of the fan casing 1, wherein one end of the motor support column 5 penetrates through the end surface of the machine cover 7 and extends to the machine cover. The outside of the cover 7 is fixedly connected to the bottom of the blower fan drive motor 2 .

The working process of the utility model: when installing the conveniently installed centrifugal fan designed by this scheme, according to the needs of the work, first use a wrench to loosen the nut 605 on the positioning screw 604, so as to keep the support rod 602 in the support sleeve 601. Free movement, at this moment, the connection mode of adjustment screw rod 405 respectively with machine cover 7, lower rectangular frame 402, bearing sleeve 407 is rotational connection successively, the connection mode of adjustment screw rod 405 and transmission rod 406 is screw connection, scissors type support 403 It is composed of two identical connecting rods, wherein the two identical connecting rods are connected through the rotation of the rotating shaft. Under the condition that the centers of the two sets of scissor brackets 403 are connected through the rotation of the supporting columns, use a wrench to act on the outer wall of the hexagonal prism structure, and rotate the adjusting screw 405, driving the adjustment screw 405 to rotate, thereby driving the transmission rod 406 to move left and right, and the transmission rod 4 to move left and right, driving the sliders connected at the two ends of the two sets of scissor-type brackets 403 to open on the inner side walls of the upper rectangular frame 401 and the lower rectangular frame 402 The chute 404 slides inside and rotates correspondingly inside the U-shaped frame 410, thereby realizing the lifting or lowering of the upper rectangular frame 401, that is, driving the motor support column 5 connected on the support plate 411 to move up and down, thereby realizing The height adjustment of the fan casing 1 and the fan drive motor 2 is completed. After the height adjustment is completed, the nut 605 is tightened to fix the support rod 602 on the support sleeve 601. This process uses the height adjustment rod assembly 6 and scissors to adjust Components 4 cooperate with each other to realize the height adjustment of the fan to meet different work requirements, and effectively solve the problem that since the height of the centrifugal fan mounting seat is fixed and cannot be adjusted, when the installation position of the fan is too high, it is necessary to find another support The seat is placed between the installation position and the centrifugal fan installation seat to adjust the overall height from the fan. When the installation position from the fan is too low, the problem of installation cannot be realized, so as to achieve the effect of convenient installation.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (7)

1. A convenient centrifugal fan for installation, comprising a fan casing (1), a fan drive motor (2) and a fan mounting base (3), characterized in that: the end face of the fan mounting base (3) is passed through a scissors type The adjustment assembly (4) is connected to the motor support column (5), wherein the fan drive motor (2) is fixedly connected to the end surface of the motor support column (5), and one side of the scissor-type adjustment assembly (4) is located on the fan Two sets of height adjustment rod assemblies (6) are arranged symmetrically on the end face of the mounting seat (3), wherein the ends of the two sets of height adjustment rod assemblies (6) are fixedly connected to the bottom of the fan casing (1); The scissor-type adjustment assembly (4) includes an upper rectangular frame (401), a lower rectangular frame (402) and two sets of scissor-type supports (403), wherein the upper rectangular frame (401) and the lower rectangular frame (402) have the same structure The opposite side walls of the upper rectangular frame (401) and the lower rectangular frame (402) are provided with a chute (404), and the center of the side wall of the lower rectangular frame (402) is connected with the chute (404) Adjusting screw rods (405) are arranged parallel to each other, wherein one end of the adjusting screw rod (405) passes through the lower rectangular frame (402) and the transmission rod (406) in turn, and extends to the other side of the transmission rod (406) through the bearing sleeve (407 ) is connected to the inner side wall of the lower rectangular frame (402), and the two ends of the transmission rod (406) are slidably connected to the inside of the chute (404) provided by the lower rectangular frame (402) side wall through the lower slider (408) respectively , wherein the outer wall of the transmission rod (406) and the connection between the transmission rod (406) and the lower slider (408) are rotatably connected to the bottom of a rod in the scissors type support (403), and the lower slider (408) directly above and located at the top of another pole in the scissors-type support (403) is connected to the upper slider (409) through a rotating shaft, wherein the upper slider (409) is slidably connected to the upper rectangular frame (401) side wall to open Inside the chute (404), the poles in the scissors-type support (403) and the opposite ends of the lower slider (408) and the upper slider (409) are connected to the U-shaped frame ( 410), wherein the U-shaped frame (410) is fixedly connected to the upper rectangular frame (401), the inner side wall of the lower rectangular frame (402), and the upper rectangular frame (401) is connected by a support plate (411) At the bottom of the motor support column (5); The height adjustment rod assembly (6) includes a support sleeve (601) fixedly connected to the end surface of the fan mounting base (3), wherein the inside of the support sleeve (601) is slidingly connected with a support rod (602) up and down, the Adjustment slots (603) are arranged symmetrically on the opposite side walls of the support sleeve (601), and the support rod (602) is connected to the inside of the adjustment slot (603) through a positioning screw (604), wherein the support rod (602) Both ends are fixedly connected with nuts (605) extending to the outside of the support rod (602) through the adjustment groove (603). 2. A conveniently installed centrifugal fan according to claim 1, characterized in that: the inside of the fan casing (1) is provided with a centrifugal fan impeller, wherein the drive shaft of the fan drive motor (2) runs through to the fan The inside of the casing (1) is fixedly connected to the impeller of the centrifugal fan, and the drive shaft of the fan drive motor (2) is connected to the casing of the fan casing (1) in a rotational connection, and the casing of the fan drive motor (2) is fixedly connected On the casing of the blower drive motor (2). 3. A conveniently installed centrifugal fan according to claim 2, characterized in that: the outside of the scissor-type adjustment assembly (4) and the end surface of the fan casing (1) are fixedly connected to the organic cover (7) , wherein one end of the motor support column (5) penetrates through the end face of the hood (7), and extends to the outside of the hood (7) and is fixedly connected to the bottom of the fan drive motor (2). 4. The conveniently installed centrifugal fan according to claim 1, characterized in that: the positioning screw (604) is slidably connected inside the adjusting groove (603), and the positioning screw (604) is fixedly connected to the support on the rod (602). 5. A conveniently installed centrifugal fan according to claim 4, characterized in that: one end of the adjusting screw (405) penetrates to the outside of the hood (7), wherein the adjusting screw (405) is located in the hood ( 7) One end of the outside is a hexagonal prism structure. 6. A conveniently installed centrifugal fan according to claim 5, characterized in that: the adjustment screw (405) is respectively connected to the machine cover (7), the lower rectangular frame (402), and the bearing sleeve (407) The method is rotational connection, and the connection method between the adjusting screw rod (405) and the transmission rod (406) is screw connection. 7. A conveniently installed centrifugal fan according to claim 1, characterized in that: the scissor-type bracket (403) is composed of two identical connecting rods, wherein the two identical connecting rods are connected by rotating shafts, two groups The center of the scissors support (403) is connected through a support column for rotation.

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