CN210919588U

CN210919588U - Automatic locking device for filter screen

Info

Publication number: CN210919588U
Application number: CN201921615616.4U
Authority: CN
Inventors: 吴凌强
Original assignee: Suzhou Dejia Purification Steel Structure Co ltd
Current assignee: Suzhou Dejia Purification Steel Structure Co ltd
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-07-03
Anticipated expiration: 2029-09-26

Abstract

The utility model discloses an automatic locking device of filter screen, including fixed shell, filter screen and locking device, filter screen fixed mounting is in the inside of fixed shell, locking device swing joint just is located the side of filter screen in the inside of fixed shell, the top surface fixedly connected with limiting plate of fixed shell, the spout has been seted up to the medial surface of limiting plate, locking device's inside fixed mounting has the pull rod, the first spring of both ends fixedly connected with of pull rod, the both ends of pull rod are located the edge of first spring and have seted up the spacing groove, the inside activity joint of spacing groove has the joint piece, the fixed column has been cup jointed to the inside of first spring, the joint is fixed mutually at the upper and lower both ends of first spring and connecting groove, first spring cup joints the surface at the recess. The utility model discloses can avoid the filter screen to receive reasons such as vibrations and the pine takes off, slides, influence the result of use of fan, the stability of the use of rate of improvement.

Description

Automatic locking device for filter screen

Technical Field

The utility model relates to an automatic locking equipment technical field of filter screen specifically is an automatic locking device of filter screen.

Background

The fan is a machine for converting rotary mechanical energy into gas pressure energy and kinetic energy and conveying gas out, the filter screen is an important component of the fan, air sent outdoors can be filtered completely through the filter screen, the fan product needs to be transported to all over the world, in the prior art, the filter screen cannot be well fixed in the fan, the filter screen is easy to loosen and slide due to vibration and the like in the transportation process, the using effect of the fan is influenced, and the phenomena of loosening and sliding of the filter screen are also easy to occur in the working process of the fan, so that the automatic locking device for the filter screen is needed to solve the problems.

Disclosure of Invention

An object of the utility model is to provide an automatic locking device of filter screen to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an automatic locking device for a filter screen comprises a fixed shell, the filter screen and a locking device, wherein the filter screen is fixedly arranged in the fixed shell, the locking device is movably connected in the fixed shell and positioned on the side surface of the filter screen, the top surface of the fixed shell is fixedly connected with a limiting plate, the inner side surface of the limiting plate is provided with a chute, the edges of two ends of the top surface of the limiting plate are fixedly connected with a stop block, the top surface of the limiting plate is positioned on the edge side surface of one end of the stop block and provided with a fixed hole, the inside of the locking device is fixedly provided with a pull rod, two ends of the pull rod are fixedly connected with a first spring, two ends of the pull rod are positioned on the edge of the first spring and provided with a limiting groove, the inside of the limiting groove is movably clamped with a clamping block, the edge of one end of, the outer surface of the upper part of the fixing column is provided with a groove, and two end faces of the groove are provided with connecting grooves.

Preferably, the edge side fixedly connected with joint post of the upper and lower both ends of filter screen, the edge side of the upper and lower both ends edge of filter screen is located the edge of joint post and has seted up triangle joint groove.

Preferably, the filter screen is connected with the fixed shell in a sliding mode through a sliding groove.

Preferably, the pull rod is inserted into the fixing hole through the fixing column.

Preferably, the outer surfaces of the edges of the two ends of the pull rod are in contact connection with the outer surface of the stop block through fixing columns.

Preferably, the clamping block is fixedly connected with the limiting groove through a second spring.

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

the utility model discloses a joint post of the upper and lower both ends edge side fixed connection of filter screen, can make between filter screen and the limiting plate closely the joint, thereby strengthen the stability of filter screen under the joint of pull rod, the upper and lower both ends edge side of filter screen is located the triangle joint groove that the edge of joint post was seted up, can make the fixed joint piece in edge at the pull rod both ends and filter screen looks joint, thereby effectively lock the filter screen rotation in the inside of fixed shell, the pull rod is pegged graft through fixed column and fixed orifices, thereby restrict the position of pull rod, be favorable to the pull rod to make both ends not take place the displacement when with the filter screen joint, thereby provide the fulcrum for the pull rod, the both ends edge surface of pull rod contacts with the surface of dog through the fixed column and is connected, can block the pull rod and contact with the side of filter screen at the spring action of first spring, the joint piece passes through second spring and, thereby making the clamping block rotate only clockwise and not rotate anticlockwise.

Drawings

FIG. 1 is a schematic view of the main structure of the present invention;

fig. 2 is a schematic structural view of the fixed housing of the present invention;

fig. 3 is a schematic structural diagram of the locking device of the present invention.

In the figure: 1-fixed shell, 2-filter screen, 3-locking device, 4-fixed hole, 5-sliding chute, 6-stop block, 7-limit plate, 8-pull rod, 9-clamping block, 10-limit groove, 11-first spring, 12-fixed column, 13-connecting groove, 14-groove, 15-second spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides an embodiment: an automatic locking device for a filter screen comprises a fixed shell 1, the filter screen 2 and a locking device 3, wherein the filter screen 2 is fixedly arranged inside the fixed shell 1, the locking device 3 is movably connected inside the fixed shell 1 and positioned on the side surface of the filter screen 2, a limiting plate 7 is fixedly connected on the top surface of the fixed shell 1, a chute 5 is arranged on the inner side surface of the limiting plate 7, stop blocks 6 are fixedly connected with the edges of two ends of the top surface of the limiting plate 7, a fixed hole 4 is arranged on the edge side surface of one end of the top surface of the limiting plate 7, a pull rod 8 is fixedly arranged inside the locking device 3, first springs 11 are fixedly connected with two ends of the pull rod 8, limiting grooves 10 are arranged on the edges of the first springs 11 at two ends of the pull rod 8, a clamping block 9 is movably clamped inside the limiting grooves 10, a second spring 15 is fixedly connected inside one end edge of the clamping block, the outer surface of the upper part of the fixed column 12 is provided with a groove 14, two end faces of the groove 14 are provided with connecting grooves 13, the edge side faces of the upper end and the lower end of the filter screen 2 are fixedly connected with a clamping column, the filter screen 2 can be tightly clamped with the limiting plate 7, so that the stability of the filter screen 2 is enhanced under the clamping of the pull rod 8, the edge side faces of the upper end and the lower end of the filter screen 2 are positioned in a triangular clamping groove formed in the edge of the clamping column, clamping blocks 9 fixed at the edges of the two ends of the pull rod 8 can be clamped with the filter screen 2, the filter screen 2 is effectively locked in the fixed shell 1 in a rotating manner, the pull rod 8 is inserted into the fixed holes 4 through the fixed column 12, so that the position of the pull rod 8 is limited, when the pull rod 8 is clamped with the filter screen 2, the two ends do not displace, so as to provide a fulcrum for the pull, can block that pull rod 8 contacts in the side of the elastic force effect of first spring 11 with filter screen 2, joint piece 9 is through second spring 15 and spacing groove 10 looks fixed connection to make joint piece 9 can only clockwise rotation can not anticlockwise rotate.

Filter screen 2's upper and lower both ends edge side fixedly connected with joint post, the triangle joint groove has been seted up at the edge that the upper and lower both ends edge side of filter screen 2 is located the joint post, filter screen 2 passes through spout 5 and fixed shell 1 looks sliding connection, pull rod 8 pegs graft mutually with fixed orifices 4 through fixed column 12, pull rod 8's both ends edge surface contacts through fixed column 12 and dog 6's surface and is connected, joint piece 9 is through second spring 15 and spacing groove 10 looks fixed connection.

The working principle is as follows: when the filter screen 2 is disassembled, the pull rod 8 is manually pulled to rotate by taking the fixed column 12 as an axis, the clamping blocks 9 at the edges of the two ends of the pull rod 8 are driven to be separated from the inside of the triangular clamping groove at the side surface of the filter screen 2, when one end of the clamping block 9 is separated from the triangular clamping groove, the clamping block 9 can be extruded with the edge of the triangular clamping groove, so that the clamping block 9 rotates by taking the limiting groove 10 as the axis to drive the second spring 15 to deform and generate elastic force until the clamping block 9 is separated from the triangular clamping groove, meanwhile, the clamping block 9 can recover the initial position to be clamped with the side surface of the limiting groove 10 under the action of the elastic force generated by the second spring 15, the first springs 11 at the two ends can be driven to rotate on the outer surface of the fixed column 12 while the pull rod 8 rotates, because the two ends of the first springs 11 are fixed inside the connecting groove 13, the first springs 11 can generate elastic force when rotating, and then the, when the filter screen 2 slides, the triangular clamping groove at the edge of the other end of the filter screen 2 extrudes and transversely slides to enable the clamping block 9 to slide on the inclined plane of the triangular clamping groove until the clamping block 9 is separated from the inside of the clamping groove, then the filter screen 2 is taken out from the space between the limiting plates 7, the force of the outer surface of the pull rod 8 is removed, meanwhile, the pull rod 8 is rotated to the initial position by taking the first spring 11 as the axis under the action of the elastic force generated by the first spring 11 until the outer surfaces of the edges of the two ends of the pull rod 8 are contacted with the side surfaces of the stop blocks 6, when the new filter screen 2 is replaced, the pull rod 8 is firstly pulled to rotate by taking the fixed column 12 as the axis, then one side end of the filter screen 2 is pushed to enable the two ends of the filter screen 2 to enter the limiting plates 7, when the triangular clamping groove at the edge of the other end of the filter screen 2 is contacted with the clamping block, then unload the power of being close to 8 surfaces of handle pull rod, make joint piece 9 and the triangle joint groove looks joint at 8 both ends edges of pull rod, thereby accomplish the change, when receiving jolting to the fan transportation, the joint piece 9 of the joint at 2 both ends edges of filter screen can conflict triangle joint groove, thereby with the inside of 2 automatic locking of filter screen at fixed housing 1, because pull rod 8 makes joint piece 9 and triangle joint groove looks joints under the spring action of the first spring 11 in both ends, so under the condition of not pulling pull rod 8, filter screen 2 breaks away from the inside of fixed housing 1 when can not receiving the condition of jolting.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automatic locking device of filter screen, includes fixed shell (1), filter screen (2) and locking device (3), its characterized in that: the filter screen (2) is fixedly arranged in the fixed shell (1), the locking device (3) is movably connected in the fixed shell (1) and positioned on the side face of the filter screen (2), the top face of the fixed shell (1) is fixedly connected with a limiting plate (7), the inner side face of the limiting plate (7) is provided with a sliding groove (5), the edges of the two ends of the top face of the limiting plate (7) are fixedly connected with a stop block (6), the top face of the limiting plate (7) is positioned on the edge side face of one end of the stop block (6) and provided with a fixing hole (4), the locking device (3) is fixedly arranged in the locking device (8), the two ends of the pull rod (8) are fixedly connected with first springs (11), the two ends of the pull rod (8) are positioned on the edge of the first springs (11) and provided with limiting grooves (10), and the inner movable joint of the limiting grooves (10), the clamping device is characterized in that a second spring (15) is fixedly connected to the inner portion of the edge of one end of the clamping block (9), a fixing column (12) is sleeved inside the first spring (11), a groove (14) is formed in the outer surface of the upper portion of the fixing column (12), and connecting grooves (13) are formed in two end faces of the groove (14).

2. The automatic locking device of a filter screen according to claim 1, characterized in that: the edge side fixedly connected with joint post of the upper and lower both ends of filter screen (2), the edge side of the upper and lower both ends edge of filter screen (2) is located the edge of joint post and has seted up triangle joint groove.

3. The automatic locking device of a filter screen according to claim 1, characterized in that: the filter screen (2) is connected with the fixed shell (1) in a sliding mode through the sliding groove (5).

4. The automatic locking device of a filter screen according to claim 1, characterized in that: the pull rod (8) is inserted into the fixing hole (4) through the fixing column (12).

5. The automatic locking device of a filter screen according to claim 1, characterized in that: the outer surfaces of the edges of the two ends of the pull rod (8) are in contact connection with the outer surface of the stop block (6) through fixing columns (12).

6. The automatic locking device of a filter screen according to claim 1, characterized in that: the clamping block (9) is fixedly connected with the limiting groove (10) through a second spring (15).