CN111173937A - Leak protection device and thermantidote - Google Patents

Abstract

The invention relates to a leakage-proof device and a cooling fan, wherein the device comprises: the valve core, the valve body and the elastic piece; the valve core penetrates through the lower water hole, the top end and the bottom end of the valve core are respectively positioned at two sides of the lower water hole, the valve body is sleeved on the part of the valve core above the lower water hole, and the elastic part is fixed between the outer wall of the lower water hole and the bottom end of the valve core in a compressed state; when the wet curtain is not installed, the downward restoring force of the elastic piece enables the valve core to drive the valve body to move downwards to block the water outlet hole; when the wet curtain is installed, the wet curtain extrusion elastic piece is extruded upwards to contract so that the valve core drives the valve body to move upwards, and the water outlet hole is opened. The invention can block the water outlet hole by controlling the downward movement of the leakage-proof device, thereby improving the safety of the cooling fan when the wet curtain is not installed.

Description

Leak protection device and thermantidote

Technical Field

The invention relates to the field of leakage-proof devices, in particular to a leakage-proof device and a cooling fan.

Background

At present, with the improvement of living standard, the cooling fan has become the electrical apparatus commonly used. The cooling fan belongs to the evaporative cooling industry, is also called as an environment-friendly air conditioner, a water-cooled air conditioner and the like, and is a newly rising industry based on the evaporative cooling industry.

Among the prior art, the thermantidote both can increase cold and hot exchange area through the installation wet curtain, also can avoid the water that divides down flow of water structure to be inhaled the fan. There are two kinds of conditions in the wet curtain structure of current thermantidote: one type is that the fan can be started without any neglected installation protection device under the condition of not installing a wet curtain, and the potential safety hazard of electricity exists; the other type is that an electromagnetic proximity switch is arranged on the upper part of the wet curtain assembly, but the switch is basically arranged on the wet curtain bracket, only a water path of the wet curtain bracket can work normally, the electromagnetic proximity switch has other defects, and if the switch is not arranged in place, a fan can be started within the sensing range of the electromagnetic proximity switch, so that the wet curtain assembly can be dropped and damaged.

Therefore, if do not install wet curtain, still can the direct operation thermantidote, water can directly flow downwards through the water inlet of wet curtain top, if flow into in the fan, then can lead to the fan to damage, have electrical safety hidden danger.

Disclosure of Invention

The invention provides a leakage-proof device and a cooling fan, aiming at the problem that the cooling fan has potential electrical safety hazards during operation when a wet curtain is not installed.

In a first aspect, the present invention provides a leakage preventing device movably installed below a water drain hole of a top cover of a cooling fan, the leakage preventing device comprising: the valve core, the valve body and the elastic piece;

the valve core penetrates through the lower water hole, the top end and the bottom end of the valve core are respectively positioned at two sides of the lower water hole, the valve body is sleeved on the part of the valve core above the lower water hole, and the elastic part is fixed between the outer wall of the lower water hole and the bottom end of the valve core in a compressed state;

when the wet curtain is not installed, the downward restoring force of the elastic piece enables the valve core to drive the valve body to move downwards to block the water outlet hole; when the wet curtain is installed, the wet curtain extrusion elastic piece is extruded upwards to contract so that the valve core drives the valve body to move upwards, and the water outlet hole is opened.

Optionally, the distance between the two fixed ends of the elastic member is smaller than the length of the elastic member in the natural elongation state.

Optionally, the valve core includes: the valve body is sleeved on the rod part of the valve core and is matched with the shape of the valve core to form a sealing structure.

Optionally, the first fixed end of the elastic member is fixed to the hole wall of the lower water hole, and the second fixed end of the elastic member is fixed to the upper surface of the disc-shaped base.

Optionally, the rod portion is provided with a circle of groove, and the groove bottom of the groove is formed in the rod portion to form a cylindrical rod body.

Optionally, the valve body is in a truncated cone shape, a through hole is axially formed in the valve body, an annular concave portion is formed downwards in the top surface of the valve body, the through hole is sleeved in the groove, a quadrangular frustum-shaped protruding portion is formed downwards in the bottom surface of the valve body, and the bottom surface of the protruding portion is matched with the inner wall of the groove.

Optionally, the side wall of the recessed portion is matched with the inner wall of the drain hole in shape.

Optionally, the valve body is made of soft rubber.

Optionally, the leakage-proof device further comprises a dust screen;

the dust screen includes rib and inserted sheet, the rib protruding to wet curtain direction, the inserted sheet orientation wet curtain direction, the inserted sheet position corresponds the gap position of wet curtain is used for with the inserted sheet inserts the gap that corresponds the position.

In a second aspect, the invention provides a cooling fan, which comprises the leakage-proof device of any one of the first aspect.

Compared with the prior art, the technical scheme provided by the embodiment of the invention has the following advantages:

according to the device provided by the embodiment of the invention, the leakage-proof device is arranged at the position of the drain hole and comprises the valve core, the valve body and the elastic piece, and when the wet curtain is not arranged, the downward restoring force of the elastic piece enables the valve core to drive the valve body to move downwards to block the drain hole; when the wet curtain is installed, the wet curtain extrusion elastic piece is extruded upwards to contract so that the valve core drives the valve body to move upwards, and the water outlet hole is opened. Therefore, the water outlet hole is blocked by controlling the downward movement of the leakage-proof device, and the safety of the cooling fan when the wet curtain is not installed is improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic cross-sectional view of a leak preventer according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of an elastic member according to another embodiment of the present invention;

FIG. 3 is a block diagram of a valve cartridge according to another embodiment of the present invention;

FIG. 4 is a block diagram of a valve body according to yet another embodiment of the present invention;

fig. 5 is a structural view of a dust screen according to another embodiment of the present invention;

fig. 6 is a structural view of a top cover according to still another embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

The invention provides a leakage-proof device which can be arranged in a cooling fan, and can avoid electrical hidden troubles when a wet curtain is not arranged in the cooling fan and the cooling fan directly runs.

As shown in fig. 1, the cooling fan comprises a top cover 1, the top cover comprises a water drainage hole 2, the leakage-proof device is arranged at the water drainage hole 2, and the top cover 1 comprises a top cover inner wall 3 and a top cover outer wall 9;

the leakage-proof device comprises a valve core 4, a valve body 5 and an elastic piece 6, wherein the valve core 4 comprises a top end 7 and a bottom end 8, and the valve body 5 is positioned on the valve core 4. The case 4 passes down water hole 2, and the top 7 and the bottom 8 of case 4 are located the both sides of water hole 2 down respectively, also are located the upper and lower both sides of water hole 2 down respectively, and the valve body 5 cover is on the case 4 that is located water hole 2 top down, and elastic component 6 is compression state's fixed between the outer wall of water hole 2 down and case bottom 8.

When the wet curtain is not installed below the lower water hole 2, the elastic piece 6 is fixed between the outer wall of the lower water hole 2 and the bottom end 8 of the valve core in a compressed state, and the top cover 1 which is contacted with the upper part of the elastic piece 6 and comprises the lower water hole 2 is fixed, so that the downward restoring force of the elastic piece 6 can enable the valve core 4 to move downwards, and the valve core 4 can drive the valve body 5 to move downwards, so that the lower water hole 2 is blocked;

when the wet curtain is installed below the lower water hole 2, the wet curtain can upwards extrude the elastic part 6, the elastic part 6 is upwards extruded and contracted, and the valve core 4 drives the valve body 5 to upwards move so as to open the lower water hole 2.

In the embodiment of the invention, the leakage-proof device is arranged at the position of the drain hole 2 and comprises the valve core 4, the valve body 5 and the elastic piece 6, when the wet curtain is not arranged, the downward restoring force of the elastic piece 6 enables the valve core 4 to drive the valve body 5 to move downwards to block the drain hole 2; when the wet curtain is installed, the wet curtain extrusion elastic piece 6 is extruded upwards to contract, so that the valve core 4 drives the valve body 5 to move upwards, and the water outlet hole 2 is opened. Therefore, the down water hole 2 is blocked by controlling the downward movement of the leakage-proof device, and the safety of the cooling fan when a wet curtain is not installed is improved.

In addition, in order to make the leakage preventing device 4 block the lower water hole 2 when the wet curtain is not installed, the elastic member 6 is required to generate a downward force, so that the valve body 5 is driven by the valve core 4 to move downward, therefore, the elastic member 6 is required to be fixed between the outer wall of the lower water hole 2 and the bottom end of the valve core 4 in a compressed state, as shown in fig. 2, the elastic member 6 comprises two fixed ends: first stiff end 10, second stiff end 11, the distance between two stiff ends of elastic component 6 will be less than the length of elastic component 6 natural extension state, so the length of case 4 also will be less than the length of elastic component 6 natural extension state, and like this, elastic component 6 is the compression state between the outer wall of lower water hole 2 and case 4 bottom.

According to the embodiment of the invention, the distance between the two fixed ends of the elastic part 6 is set to be smaller than the length of the elastic part 6 in the natural extension state, so that the elastic part 6 is in the compression state, and therefore, when the wet curtain is not installed, the water outlet hole 2 can be blocked by the elastic part 6 in the compression state, and the safety of the cooling fan when the wet curtain is not installed is improved.

In addition, as shown in fig. 3, the valve core 4 includes a conical top 12, a prismatic stem 14 and a disc-shaped base 15, the valve body 5 is sleeved on the stem 14 of the valve core 4, and the shape of the valve body 5 and the shape of the valve core 4 are matched to form a sealing structure.

The top 12 of the valve core 4 is set to be conical, so that the valve core 4 can be more conveniently inserted into the drain hole 2 in actual operation; set the bottom of case 4 into discoid base 15, can be when the wet curtain of installation, wet curtain contact discoid base 15 and upwards when extrudeing, can make leak protection device upward pressure better to make leak protection device upward movement, open down water hole 2 smoothly.

According to the above, the valve core 4 passes through the lower water hole 2, the top 7 and the bottom 8 of the valve core 4 are respectively located at two sides of the lower water hole 2, and the valve body 4 is sleeved on the valve core 4 located above the lower water hole 2, so the prismatic rod part 14 also passes through the lower water hole 2, the disc-shaped base 15 is located below the lower water hole 2, and the valve body 4 is sleeved on the rod part 14 located above the lower water hole 2 and forms a sealing structure by matching with the shape of the rod part 14 located above the lower water hole 2.

In the embodiment of the invention, the valve core 4 is arranged into the conical top 12 and the disc-shaped base 15, and the shape of the valve body 5 and the shape of the valve core 4 are matched to form a sealing structure, so that the valve core 4 can conveniently penetrate through the sewer hole 2 in actual operation, and the shape of the valve body 5 and the shape of the valve core 4 are matched to form a sealing structure to be tightly combined together, thereby tightly blocking the sewer hole 2.

In addition, in order to bring the elastic member 6 to block or open the drain hole 2, the elastic member 6 is fixedly disposed.

The first fixed end 10 of the elastic piece 6 is fixed with the hole wall 9 of the sewer hole, the second fixed end 11 of the elastic piece 6 is fixed with the upper surface 17 of the disc-shaped base 15, the first fixed end 10 and the second fixed end 11 are respectively fixed due to the fact that the elastic piece 6 is set to be in a compressed state, and when a wet curtain is not installed, the sewer hole 2 can be tightly blocked by fixing the first fixed end 10 and the second fixed end 11; when the wet curtain is installed, because the first fixed end 10 and the second fixed end 11 are fixed, when the wet curtain is contacted with the lower surface 18 of the disc-shaped base 15 and is extruded upwards, the elastic piece 6 is extruded upwards to contract so that the valve core 4 drives the valve body 5 to move upwards, and the lower water hole 2 can be opened.

According to the embodiment of the invention, the elastic piece 6 is fixedly arranged, so that the elastic piece 6 can be controlled to be compressed upwards or stretched downwards, and the sewer hole 2 can be opened or blocked.

Specifically, the rod part 14 of the valve core 4 is provided with a circle of groove 13, the bottom of the groove 13 forms a cylindrical column at the rod part, and the diameter of the cylindrical column is smaller than that of the rod part.

In order to be able to fit the valve body 5 onto the stem 14 of the valve slide 4, it is necessary to provide a recess 13 in the stem 14, the recess 13 being adapted to fit the valve body 5 tightly onto the stem 14.

Specifically, as shown in fig. 4, the valve body 5 is in a truncated cone shape, the valve body 5 is provided with a through hole 20 along the axial direction, and since the space between the side surface 19 of the valve body and the through hole 20 at the center of the valve body is hollow, the top surface of the valve body forms an annular concave part downwards when the valve body is overlooked;

the valve body 5 is sleeved at the groove 13 of the valve core rod part 14 through the through hole 20, the bottom surface of the valve body is downwards provided with a quadrangular frustum-shaped protruding part 21, so that the protruding part 21 at the bottom surface of the valve body is also positioned at the groove 13, the bottom surface of the protruding part 21 at the bottom surface of the valve body is contacted with the inner wall of the groove, and the bottom surface of the protruding part is matched with the inner wall of the groove, so that the valve body 5 and the groove 13 can be ensured to form a tight sealing structure, and the sewer hole 2 can be tightly.

According to the embodiment of the invention, the valve body 5 is matched and combined with the groove 13, so that the valve body 5 can be tightly sleeved on the valve core rod part 14, and the water outlet hole 2 can be conveniently blocked.

Specifically, the valve body 5 is sleeved on the groove 13 of the valve core rod part 14 through the through hole 20, in order to enable the valve body 5 to be tightly sleeved on the rod part 14, except that the protruding part 21 on the bottom surface of the valve body is matched with the inner wall of the groove, the side surface 19 of the valve body 5 is matched with the inner wall of the lower water hole 2, and the side wall 19 of the valve body 5 is also matched with the inner wall of the lower water hole 2 because the valve body 5 is opened upwards at the groove 13.

In the embodiment of the invention, the side wall 19 of the valve body 5 is matched with the inner wall of the sewer hole 2, so that the leakage-proof device can move downwards when the wet curtain is not installed, the bottom of the valve body 5 is controlled to be in close contact with the inner wall of the groove and the side surface 19 of the valve body and the inner wall of the sewer hole, and the sewer hole is blocked smoothly.

Specifically, in order to enable the valve core 4 to drive the valve body 5 to move downwards to block the lower water hole 2, the side surface 19 of the valve body needs to be in close contact with the inner wall of the lower water hole, the bottom of the valve body and the inner wall of the groove, so that the valve body is made of soft rubber, soft and easy to deform, is adaptive to the structure of the lower water hole 2, and can tightly block the lower water hole 2.

Owing to install wet curtain after, wet curtain can upwards extrude anti-blocking device 3 to open down water hole 2, consequently, the thermantidote when the operation behind the wet curtain of installation, in order to guarantee down water hole 2 and can continuously open, so need consolidate wet curtain.

Specifically, as shown in fig. 5, the leakage preventing device further comprises a dust screen 22, the dust screen 22 comprises ribs 23 and insertion pieces 24, the ribs 23 are arranged in parallel according to a certain distance, then the ribs 23 are arranged perpendicular to the parallel ribs 23, and the ribs 23 protrude towards the wet curtain direction to form the dust screen 22 with a stable structure;

still include inserted sheet 24 on the dust screen 22, inserted sheet 24 sets up on rib 23, and inserted sheet 24 sets up towards wet curtain direction, and wet curtain has the gap on the corresponding position of inserted sheet 24 moreover, so when assembling wet curtain and dust screen 22 together, rib 23 is protruding to wet curtain, and inserted sheet 24 inserts the gap that wet curtain corresponds the position, and the quantity that inserted sheet 24 set up is more, and dust screen 22 is more stable with being connected of wet curtain.

The dust screen 22 is connected with wet curtain, and wet curtain is located the below in lower water hole 2, and leak protection device is located lower water hole 2 department, and the elastic component 6 among the wet curtain extrusion leak protection device, elastic component 6 are upwards extruded the shrink and make case 4 drive valve body 5 upward movement to water hole 2 under opening.

Therefore, after the dust screen 22 is installed, the wet curtain and the dust screen 22 are combined together through the insertion pieces 24 more stably, and the wet curtain is reinforced, so that the water holes 2 can be continuously opened, and the normal operation of the cooling fan is ensured.

In addition, the leakage preventing device may be set to move vertically to the ground or inclined at a certain angle to the ground, and the specific embodiment is not limited according to the actual situation.

In addition, in the actual use process, as shown in fig. 6, since there are a plurality of water drainage holes 2 in the top cover 1 of the cooling fan, a plurality of leakage-proof devices are required.

The invention also provides a cooling fan, wherein the cooling fan comprises all the anti-leakage devices.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

It should be noted that, in this document, the directions or positional relationships indicated by the terms "upper", "lower", and the like are based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific direction, be constructed in a specific direction, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the communication may be direct, indirect via an intermediate medium, or internal to both elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A leak protection device, comprising: the below in the lower water hole of the top cap of thermantidote is installed to the activity, leak protection device includes: the valve core, the valve body and the elastic piece;

the valve core penetrates through the lower water hole, the top end and the bottom end of the valve core are respectively positioned at two sides of the lower water hole, the valve body is sleeved on the part of the valve core above the lower water hole, and the elastic part is fixed between the outer wall of the lower water hole and the bottom end of the valve core in a compressed state;

when the wet curtain is not installed, the downward restoring force of the elastic piece enables the valve core to drive the valve body to move downwards to block the water outlet hole; when the wet curtain is installed, the wet curtain extrusion elastic piece is extruded upwards to contract so that the valve core drives the valve body to move upwards, and the water outlet hole is opened.

2. The leak protection device of claim 1, wherein the distance between the two fixed ends of said elastic member is less than the length of said elastic member in its natural elongation state.

3. The leak protection device of claim 1, wherein the valve cartridge comprises: the valve body is sleeved on the rod part of the valve core and is matched with the shape of the valve core to form a sealing structure.

4. The leak preventer of claim 3, wherein a first fixed end of the elastic member is fixed to the wall of the drain hole, and a second fixed end of the elastic member is fixed to the upper surface of the disk-shaped base.

5. The leak protection device of claim 3 wherein said stem is provided with a circumferential groove, the groove bottom of said groove forming a cylindrical rod at said stem.

6. The leak-proof device as claimed in claim 5, wherein the valve body is in the shape of a truncated cone, the valve body is axially provided with a through hole, the top surface of the valve body is downward to form an annular concave part, the through hole is sleeved at the groove, the bottom surface of the valve body is downward to form a quadrangular frustum-shaped convex part, and the bottom surface of the convex part is matched with the inner wall of the groove.

7. The leak protection device of claim 6, wherein the side walls of said recess are shaped to fit the inner wall of said drain hole.

8. The leak protection device of claim 1, wherein the valve body is made of soft plastic.

9. The leak protection device of claim 1, further comprising a dust screen;

the dust screen includes rib and inserted sheet, the rib protruding to wet curtain direction, the inserted sheet orientation wet curtain direction, the inserted sheet position corresponds the gap position of wet curtain is used for with the inserted sheet inserts the gap that corresponds the position.

10. A cooling fan, characterized by comprising the leak prevention device as claimed in any one of claims 1 to 9.

Images