CN110332690B

CN110332690B - Base crane

Info

Publication number: CN110332690B
Application number: CN201910614456.XA
Authority: CN
Inventors: 刘文亮; 李晨晨; 陈国栋; 李君跃
Original assignee: Ningbo Aux Electric Co Ltd
Current assignee: Ningbo Aux Electric Co Ltd
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2021-03-05
Anticipated expiration: 2039-07-09
Also published as: CN110332690A

Abstract

The invention provides a pedestal crane which comprises a volute fixing plate, a chassis and a connecting rod, wherein the connecting rod is arranged between the volute fixing plate and the chassis and fixedly connected with the volute fixing plate and the chassis, and the connecting rod is fixedly clamped with at least one of the volute fixing plate and the chassis. The connecting rod is convenient to install, simple in structure and high in reliability, and meanwhile, the stability of the volute fixing plate can be enhanced.

Description

Base crane

Technical Field

The invention relates to the technical field of air conditioners, in particular to a base crane.

Background

The volute fixing plate is an important component of the air duct of the base crane, and can be installed on a base and lifted, so that the stability of the volute fixing plate affects the reliability of the unit and the noise and the air volume of the unit. The existing seat crane generally uses one support rod to connect the upper end of the volute fixing plate and the lower part of the chassis together through screws, and two screws are needed, so that the installation is inconvenient.

Disclosure of Invention

The invention provides a pedestal crane, wherein a connecting rod is clamped and fixed with at least one of a volute fixing plate and a chassis, the installation is convenient, and the structure of the whole machine is stable and reliable.

In order to solve the problems, the invention adopts the following technical scheme:

according to one aspect of the invention, the base crane comprises a volute fixing plate, a chassis and a connecting rod, wherein the connecting rod is arranged between the volute fixing plate and the chassis and fixedly connected with the volute fixing plate and the chassis, and the connecting rod is fixedly clamped with at least one of the volute fixing plate and the chassis.

Through the structure, the volute fixing plate can reduce the use of screws, adopts a clamping and fixing mode, is convenient to install, simple in structure and high in reliability, and can enhance the stability of the volute fixing plate.

In some embodiments of the invention, at least one end of the connecting rod is provided with an inserting sheet, at least one of the volute fixing plate and the chassis is provided with a jack arranged corresponding to the inserting sheet, and the inserting sheet is inserted into the jack to realize clamping and fixing, so that the installation is simple and convenient.

In some embodiments of the present invention, the insert extends along a length direction of the volute fixing plate, or extends along a direction perpendicular to a plane of the volute fixing plate.

In some embodiments of the invention, a hook is arranged at one end of the insertion piece away from the connecting rod, and the hook is suitable for being matched with the jack to limit the insertion piece, so that the connection reliability is improved.

In some embodiments of the invention, an insertion piece is arranged at one end of the connecting rod connected with the volute fixing plate, the volute fixing plate is provided with a first wall facing the chassis and a second wall which is fixedly connected with the first wall and forms a certain angle with the first wall, and the second wall is provided with an insertion hole; the inserted sheet is inserted in the jack to realize clamping and fixing.

In some embodiments of the invention, the second wall is further provided with a recess, and the insertion hole is arranged on the bottom surface of the recess or the side surface of the recess.

In some embodiments of the present invention, a connecting portion is disposed between the connecting rod and the inserting piece, and the connecting portion is accommodated in the recess.

Through the structure, the connecting part is accommodated in the concave structure, so that the top surface after installation can be kept flat, and the installation and use of other parts near the connecting rod are not influenced.

In some embodiments of the invention, a support plate is further disposed at one end of the extension rod connected to the volute casing fixing plate, and the support plate abuts against the second wall, so that the reliability of connection is improved.

In some embodiments of the invention, one end of the connecting rod connected with the chassis is provided with a bending piece, and the bending piece is fixed on the chassis in a screwed manner.

In some embodiments of the invention, the bending sheet is further provided with a positioning insertion sheet, the chassis is provided with a positioning insertion hole corresponding to the positioning insertion sheet, and the positioning insertion sheet is inserted into the positioning insertion hole to limit the bending sheet.

Through above-mentioned structure, can carry on spacingly to being connected of connecting rod and chassis, the removal of restriction connecting rod relative chassis increases the reliability of connecting.

Drawings

Fig. 1 is an overall schematic view of a volute fixing plate connecting structure according to an embodiment of the invention.

Fig. 2 is a schematic structural diagram of a connecting rod in an embodiment of the invention.

Fig. 3 is a schematic structural diagram of a volute fixing plate and an enlarged view of a through hole and a recessed structure on the volute fixing plate in the embodiment of the invention.

FIG. 4 is an enlarged view of the connection position of the connection rod and the volute fixing plate according to the embodiment of the invention.

FIG. 5 is an enlarged view of the connection position of the connecting rod and the chassis according to the embodiment of the present invention.

Description of reference numerals:

1-a connecting rod; 12-an insert sheet; 13-a connecting part; 14-a support plate; 15-bending the sheet; 16-positioning the insert; 17-screw holes; 2-volute fixing plate; 21-a jack; 22-a first wall; 23-a second wall; 24-a recess; 3-a chassis; 31-positioning insertion holes; 4-screws.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the embodiment of the invention, a pedestal crane is provided, as shown in fig. 1, which comprises a connecting rod 1, wherein one end of the connecting rod 1 is connected with a volute casing fixing plate 2, and the other end is connected with a chassis 3. The concrete connection mode of the connecting rod 1 with the volute casing fixing plate 2 and the chassis 3 respectively is described in detail below.

First, the structural form of the connecting rod 1 is described, as shown in fig. 2, at one end of the connecting rod 1 connected with the volute casing fixing plate 2, the connecting rod 1 includes: insert 12, connecting part 13, and support plate 14.

The connecting rod 1 can be in a long-strip flat shape, and the inserting piece 12 is used for being clamped and fixedly connected with the volute fixing plate 2. It should be noted that the inserting sheet 12 is one specific form of the engaging and fixing, and other forms may be used herein, and may be specifically adjusted according to the structure of the volute casing fixing plate 2 for realizing the connection.

The insertion piece 12 is connected with the connecting rod 1 through the connecting part 13, namely one end of the insertion piece 12 is connected with one end of the connecting part 13, and the insertion piece 12 is clamped with the volute fixing plate 2 when the other end of the connecting part 13 is connected with the connecting rod 1.

The supporting plate 14 is located the tip top surface of connecting rod 1, and the same tip of connecting rod 1 is located with inserted sheet 12 to the supporting plate 14, and the supporting plate 14 has the holding surface, and under connected state, the holding surface contacts with spiral case fixed plate 2, supports on spiral case fixed plate 2, can increase the reliability of connecting. For example, the support plates 14 may be protrusions extending outward from the end side surfaces of the connecting rod 1, and when the support plates 14 are two, they may be located at both sides of the connecting rod 1, respectively.

As shown in fig. 1, 3 and 4, the volute fixing plate 2 includes a first wall 22 and a second wall 23, the first wall 22 faces the chassis 3, the second wall 23 is fixedly connected to the first wall 22 and forms a certain included angle with the first wall 22, an insertion hole 21 is formed in the second wall 23, and is used in cooperation with the insertion piece 12 on the connecting rod 1, when the connecting rod is connected, the insertion piece 12 is inserted into the insertion hole 21 to realize clamping and fixing, and the combination of the insertion piece 12 and the connecting portion 13 is approximately in a sickle shape.

In addition, the one end that connecting rod 1 was kept away from to inserted sheet 12 is equipped with the trip, and the trip is suitable for and carries on spacingly with jack 21 cooperation in order to carry out inserted sheet 12, increases the reliability of connecting. After connecting rod 1 is connected with spiral case fixed plate 2, chassis 3, to the spacing direction of inserted sheet 12, can set up inserted sheet 12 to extend for the length direction along spiral case fixed plate 2, also can set up inserted sheet 12 to extend for the direction towards chassis 3. Meanwhile, when connecting, the support surfaces of the support plates 14 at both sides of the end of the connecting rod 1 abut against the second wall 23, increasing the reliability of the connection. The insertion hole 21 may be circular or rectangular, and may be specifically adjusted according to the shape of the insert 11.

In addition, the matching position of the volute fixing plate 2 and the connecting rod 1 is pressed downwards to a certain extent to form a concave part 24, that is, the concave part 24 is a pit-shaped structure on the volute fixing plate 2, the insertion hole 21 is arranged on the bottom surface of the concave part 24, and in the connection state, the insertion piece 12 penetrates through the insertion hole 21, so that the connection part 13 is accommodated in the concave part 24, and the supporting surface of the supporting plate 14 is abutted against the outer edge of the concave part 24. Of course, the insertion hole 21 may be provided on the side of the recess 24. Because connecting portion 13 just holds in depressed part 24 for the top surface after volute fixed plate 2 and connecting rod 1 cooperation is the plane, and other positions with connecting rod 1's cooperation position and volute fixed plate 2 on the volute fixed plate 2 keep leveling promptly, can not influence the installation of other parts of volute fixed plate 2 periphery like this and use, has improved connection structure's reliability. It should be noted that the size of the recess 24 may be larger than that of the connection portion 13, as long as it is ensured that the connection portion 13 does not protrude from the volute casing fixing plate 2. For example, the recessed portion 24 may be a quadrangle or a circle.

As shown in fig. 2, at the end of the connecting rod 1 connected to the chassis 3, the connecting rod 1 includes a bending piece 15, a positioning insertion piece 16 and a screw hole 17. The bending piece 15 is arranged at the end part of the connecting rod 1, the positioning insertion piece 16 is arranged on the bending piece 15, the connecting rod 1 is limited, the connection reliability is improved, the limiting in the same direction can be realized by arranging a plurality of positioning insertion pieces 16, the positioning insertion pieces 16 can also be arranged in different limiting directions respectively, and specific limitation is not performed on the positioning insertion pieces, for example, the bending piece 15 is a quadrangle, one edge of the quadrangle is connected with the end part of the connecting rod 1, the positioning insertion pieces 16 are arranged on two adjacent edges of the quadrangle, the positioning insertion pieces 16 are protruding blocks, the ear-shaped connecting piece is similar to ears, and the ear-shaped connecting piece can also be. In addition, the bending piece 15 is further provided with a screw hole 17 for screw-fixing the tie rod 1 and the chassis 3.

As shown in fig. 2 and 5, the chassis 3 is provided with screw holes to be engaged with the screw holes 17 of the bent pieces 15 of the connecting rod 1, thereby realizing screw fixation. In the connection state, the screw hole on the chassis 3 is opposite to the screw hole 17 on the bending piece 15, and the screw 4 is inserted into the two opposite screw holes. The screw holes on the chassis 3 are blind holes, so that the screws 4 can be prevented from penetrating the chassis 3, and the tip parts of the screws 4 can be prevented from accidentally injuring operators. Of course, for screw fixation, the chassis 3 may not be provided with a screw hole, and the screw 4 may be screwed to the chassis 3 by passing through the screw hole 17 at the time of connection.

Still be provided with location jack 31 on the chassis 3 for the location inserted sheet 16 on the installation bending piece 15, under connected state, location inserted sheet 16 inserts in location jack 31, makes the bending piece 15 of connecting rod 1 attached on chassis 3, realizes the spacing of bending piece 15, and simultaneously, the screw hole on the chassis 3 aligns with the screw hole 17 on the limit of bending automatically. Of course, the positions and the number of the positioning insertion holes 31 are determined according to the specific situation of the positioning insertion sheets 16, the number of the positioning insertion holes 31 is greater than or equal to the number of the positioning insertion sheets 16, and the number of the positioning insertion holes 31 is equal to that of the positioning insertion sheets 16 as a preferred embodiment. The positioning insertion hole 31 may be circular or rectangular, and may be specifically adjusted according to the shape of the positioning insertion piece 16.

As can be seen from the above, in the seat crane of the present invention, the connecting rod 1 is disposed between the volute fixing plate 2 and the chassis 3, and is used for reinforcing the connection between the volute fixing plate 2 and the chassis 3, only one screw needs to be used at the matching position of the connecting rod 1 and the chassis 3, and the inserting piece 11 is used at the matching position of the connecting rod 1 and the volute fixing plate 2 to be inserted into the inserting hole 21, which is convenient to install compared with the fixing mode using two screws in the prior art. Of course, the connecting rod 1 and the volute fixing plate 2, and the connecting rod 1 and the chassis 3 may be fixedly connected by means of clamping without screws.

As shown in fig. 1, one end of the connecting rod 1 is provided with an inserting piece 12, an inserting hole 21 is arranged on the volute fixing plate 2, and the inserting piece 12 is inserted into the inserting hole 21; the other end of the connecting rod 1 is provided with a bending piece 15, the bending piece 15 is provided with a screw hole 17, and the screw hole 17 is aligned with a screw hole on the chassis 3 and fixed by using one screw. The spiral case fixing plate is convenient to install, simple in structure and high in reliability, and meanwhile, the stability of the spiral case fixing plate 2 can be enhanced.

The volute fixing plate 2 is matched with the connecting rod 1 in position for compression processing, and the insertion holes 21 are located in the range of the volute fixing plate 2 subjected to compression processing, so that the top can be kept flat after installation, and the installation and use of other parts nearby the connecting rod 1 are not influenced. In addition, the two sides of the end part of one end of the connecting rod 1 connected with the volute fixing plate 2 are provided with supporting surfaces which are supported on the volute fixing plate 2, so that the connection reliability can be improved.

The bending piece 15 at the other end of the connecting rod 1 is provided with a positioning insertion piece 16, a matching position on the chassis 3 with the connecting rod 1 is provided with a positioning insertion hole 31, during connection, the positioning insertion piece 16 is inserted into the positioning insertion hole 31, so that the screw hole 17 on the bending piece 15 of the connecting rod 1 is automatically aligned with the screw hole on the chassis 3, a screw is additionally arranged at the position for fixing, the reliable connection of the connecting rod 1 between the chassis 3 and the volute fixing plate 2 can be met, and the structure is more stable.

As shown in fig. 3, as an embodiment, two or more connection rods 1 may be disposed along the length direction of the volute fixing plate 2, so as to enhance the stability of the volute fixing plate 2.

The base crane can ensure the stability of the volute fixing plate 2 no matter whether the base crane is mounted or hoisted, further ensure the reliability of the unit, and ensure that the noise and the air volume of the unit are not influenced by the volute fixing plate 2.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A pedestal crane comprises a volute fixing plate (2), a chassis (3) and a connecting rod (1), wherein the connecting rod (1) is arranged between the volute fixing plate (2) and the chassis (3) and is fixedly connected with the volute fixing plate (2) and the chassis (3), and the pedestal crane is characterized in that the connecting rod (1) is fixedly clamped with at least one of the volute fixing plate (2) and the chassis (3);

an inserting piece (12) is arranged at one end, connected with the volute fixing plate (2), of the connecting rod (1), the volute fixing plate (2) is provided with a first wall (22) facing the chassis (3) and a second wall (23) which is fixedly connected with the first wall (22) and forms a certain angle with the first wall (22), and a jack (21) is arranged on the second wall (23); the inserting sheet (12) is inserted into the inserting hole (21) to realize clamping and fixing;

the second wall (23) is also provided with a concave part (24), and the insertion hole (21) is arranged on the bottom surface of the concave part (24) or the side surface of the concave part (24); be equipped with connecting portion (13) between connecting rod (1) and inserted sheet (12), connecting portion (13) holding is in depressed part (24).

2. A seat crane according to claim 1, characterized in that the insert (12) extends along the length of the volute fixing plate (2) or in a direction perpendicular to the plane of the volute fixing plate (2).

3. A seat crane according to claim 1, wherein a hook is arranged at one end of the inserting piece (12) far away from the connecting rod (1), and the hook is suitable for being matched with the inserting hole (21) to limit the inserting piece (12).

4. A seat crane according to claim 1, characterized in that the end of the connecting rod (1) connected to the volute fixing plate (2) is further provided with a support plate (14), and the support plate (14) abuts against the second wall (23).

5. A seat crane according to any one of claims 1-4, characterized in that the end of the connecting rod (1) connected to the chassis (3) is provided with a bending piece (15), and the bending piece (15) is screwed to the chassis (3).

6. A seat crane according to claim 5, characterized in that the bending piece (15) is further provided with a positioning insertion piece (16), the chassis (3) is provided with a positioning insertion hole (31) corresponding to the positioning insertion piece (16), and the positioning insertion piece (16) is inserted into the positioning insertion hole (31) to limit the bending piece (15).