CN107524876B

CN107524876B - Fixing structure of check valve mounting seat

Info

Publication number: CN107524876B
Application number: CN201610442305.7A
Authority: CN
Inventors: 萧裕明
Original assignee: Dongguan Dongkeng Helimei Electronic Electric Appliance Co ltd
Current assignee: Dongguan Dongkeng Helimei Electronic Electric Appliance Co ltd
Priority date: 2016-06-20
Filing date: 2016-06-20
Publication date: 2021-04-02
Anticipated expiration: 2036-06-20
Also published as: CN107524876A

Abstract

The invention discloses a fixing structure of a check valve mounting seat, comprising: a seat plate having a setting hole and at least one hollow part; a lower tube, the top end of which is aligned with the setting hole, and the outer wall surface of the lower tube is provided with at least one lug which protrudes outwards; and a mounting seat having an upper sleeve portion, a shoulder portion and a lower sleeve portion; the lower sleeve part extends outwards to form at least one convex part, and the lower sleeve part extends upwards from the bottom end to form at least one first channel and extends from the top end of the first channel to one side to form at least one second channel; wherein the lower sleeve is sleeved on the lower pipe, the at least one convex part also passes through the at least one hollow part, and in addition, the at least one lug enters the at least one first channel; after the mounting base is rotated by a preset angle, the at least one lug enters the at least one second channel, and the at least one convex part is at least partially moved to the position below the seat plate.

Description

Fixing structure of check valve mounting seat

Technical Field

The present invention relates to a check valve fixing technology, and more particularly, to a fixing structure of a check valve mounting seat.

Background

Taiwan patent No. M391600 discloses a conventional check valve installation method. As can be seen from the drawings, the check valve is disposed in a drainage connector set 20, and the drainage connector set is fixed by a screw connection (as shown in fig. 1) or by a locking slot with a locking piece 60 (as shown in fig. 3).

However, in the conventional manner disclosed in the foregoing, the screwing relationship may be reversed and loosened under the action of external force, which may cause the problem of falling off or poor fixation; the clamping groove is clamped and the buckling piece is added, so that the clamping groove is likely to fall off easily when being impacted because the clamping relation of the clamping groove is not tight enough, and the falling test cannot be passed.

Disclosure of Invention

The present invention is directed to a retaining structure for a check valve seat, which provides a good retaining effect and is less likely to be accidentally loosened due to external force.

Therefore, the present invention provides a fixing structure of a check valve mounting seat, comprising: a seat board, which is provided with a setting hole and at least one hollow part which extends outwards from the edge of the setting hole and is communicated with the setting hole; the lower pipe is arranged on the seat board and is positioned below the seat board, the lower pipe is provided with a top end aligned with the arrangement hole, and the outer wall surface of the lower pipe is provided with at least one convex block which protrudes outwards; the mounting seat is provided with an upper sleeve part, a shoulder part and a lower sleeve part, wherein the shoulder part extends outwards and annularly from the upper sleeve part, the lower sleeve part extends downwards from the shoulder part, and the upper sleeve part is communicated with the interior of the lower sleeve part in space; the center of the upper sleeve part is provided with a through hole, the caliber of the lower sleeve part is larger than that of the upper sleeve part, the bottom surface of the shoulder part positioned in the enclosing range of the lower sleeve part is defined as a pressing surface, the lower sleeve part extends outwards to form at least one convex part, the lower sleeve part extends upwards from the bottom end to form at least one first channel with a preset length, and horizontally extends from the top end of the first channel to one side to form at least one second channel with a preset length; wherein the lower sleeve portion passes through the setting hole from top to bottom and is sleeved on the lower tube, the at least one convex portion also passes through the at least one hollow-out portion from top to bottom, and in addition, the at least one bump enters the at least one first channel; the mounting seat is in the sleeved relation, after the mounting seat rotates for a preset angle, the at least one lug enters the at least one second channel, and the at least one convex part moves to the position below the seat plate at least partially.

By means of the at least one convex part being at least partially located below the seat plate, the effect of resisting against the seat plate and preventing the mounting seat from being separated upwards can be achieved; in addition, the at least one lug enters the at least one second channel through the at least one first channel, so that the effect of clamping the mounting seat on the lower pipe can be achieved. By the double fixing relationship, the mounting seat is firmly fixed to the down tube and the seat plate, and has a good fixing effect.

The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.

Drawings

FIG. 1 is a perspective view of a preferred embodiment of the present invention.

Fig. 2 is an exploded view of a preferred embodiment of the present invention.

FIG. 3 is a partial exploded view of a preferred embodiment of the present invention showing the relationship of the mounting base and the down tube.

FIG. 4 is a top view of a preferred embodiment of the present invention.

Fig. 5 is a cross-sectional view taken along line 5-5 of fig. 4.

Fig. 6 is a cross-sectional view taken along line 6-6 of fig. 4.

FIG. 7 is a partial side view of a preferred embodiment of the present invention showing the attachment of the mounting plate to the seat plate and down tube.

Wherein the reference numerals

Fixing structure of 10-check valve mounting seat

11 seat plate 111 screw hole 12 setting hole

13 hollow part 21 lower tube 211 big diameter part

22 bump 221 bump 31 mounting seat

32 upper sleeve portion 321 perforation 34 shoulder

341 pressing surface 342 Ring wing 35

351 fixing hole 36 lower sleeve part 361 convex part

362 first channel 363 second channel 364 pocket

39 bolt

91 check valve 92 ring part

S space

Detailed Description

The following detailed description of the embodiments of the present invention with reference to the drawings and specific examples is provided for further understanding the objects, aspects and effects of the present invention, but not for limiting the scope of the appended claims.

As shown in fig. 1 to 7, a fixing structure 10 of a check valve mounting seat according to a preferred embodiment of the present invention mainly comprises a seat plate 11, a lower tube 21 and a mounting seat 31, wherein:

the seat plate 11 has a setting hole 12 and at least one hollow portion 13 extending outward from the edge of the setting hole 12 and communicating with the setting hole 12.

The down tube 21 is disposed on the seat plate 11 and located under the seat plate 11, the down tube 21 has a top end aligned with the installation hole 12, and the outer wall surface of the down tube 21 has at least one protrusion 22 protruding outwards.

The mounting seat 31 has an upper sleeve portion 32, a shoulder portion 34 extending from the upper sleeve portion 32 in an annular shape, and a lower sleeve portion 36 extending from the shoulder portion 34 to a lower position, wherein the upper sleeve portion 32 is in spatial communication with the interior of the lower sleeve portion 36. The upper sleeve portion 32 has a through hole 321 in the center, the diameter of the lower sleeve portion 36 is larger than that of the upper sleeve portion 32, the bottom surface of the shoulder 34 within the range surrounded by the lower sleeve portion 36 defines a pressed surface 341, the lower sleeve portion 36 extends at least one protrusion 361 outward, the lower sleeve portion 36 extends at least one first channel 362 with a predetermined length from the bottom end upward, and at least one second channel 363 with a predetermined length from the top end of the first channel 362 horizontally extends to one side.

The lower covering portion 36 is disposed on the lower tube 21 from top to bottom through the installation hole 12, the at least one protrusion 361 also passes through the at least one hollow portion 13 from top to bottom, and the at least one protrusion 22 enters the at least one first channel 362. After the mounting seat 31 is rotated by a predetermined angle in the aforementioned nested relationship, the at least one protrusion 22 enters the at least one second channel 363, and the at least one protrusion 361 at least partially moves under the seat plate 11.

In the present embodiment, the number of the at least one bump 22 is two, the number of the at least one first channel 362 is two, and the number of the at least one second channel 363 is two. Also, the number of the at least one hollow portion 13 is also two, and the number of the at least one protrusion 361 is also two. The two first channels 362 and the two second channels 363 penetrate the lower sleeve 36.

As shown in fig. 3 and 7, after the assembly of the present invention is completed, the mounting seat 31 is sleeved on the lower tube 21 and also rotated a predetermined angle, and at this time, a part of the two protrusions 361 is located below the seat plate 11 to abut against the seat plate 11 so that the mounting seat 31 is not separated upward; in addition, the two protrusions 22 enter the two second channels 363 through the two first channels 362, respectively, so as to clamp the mounting seat 31 on the lower tube 21. Since the lower tube 21 is disposed on the seat plate 11, the mounting seat 31 is in a double-locking relationship with the seat plate 11 and the lower tube 21, and the mounting seat 31 is firmly fixed on the lower tube 21 and the seat plate 11, so as to have a good fixing effect, which is the key point of the present invention application, and the fixing effect can be tested even if a drop test is required.

It should be added that, as shown in fig. 1 to 7, in the foregoing embodiment, the shoulder 34 may further extend horizontally outward to form a wing 35, and the end of the wing 35 has a fixing hole 351; the seat plate 11 is also correspondingly provided with a screw hole 111; and a bolt 39 is threaded through the fixing hole 351 and the threaded hole 111, thereby fixing the wing 35 to the seat plate 11. Thereby, an additional fixing effect can be provided, and the mounting seat 31 can be reliably prevented from being accidentally rotated.

In addition, in order to provide a better fixing effect, the lower sleeve 36 further forms a cavity 364 at the end of the second channel 363, the two protrusions 22 further form a protruding point 221, and when the two protrusions 22 are located in the second channel 363, the protruding points 221 are embedded in the cavities 364. Therefore, the fixing effect can be better.

As shown in fig. 5 to 6, for the convenience of installing the check valve, the lower tube 21 is also formed with a large diameter portion 211 at the top end thereof for accommodating a lower half portion of the check valve 91, the upper sleeve portion 32 covers the upper half portion of the check valve 91, and the top portion of the check valve 91 protrudes from the through hole 321. In addition, a space S is further formed between the pressing surface 341 and the top edge of the lower tube 21, the check valve 91 has a ring 92, and the pressing surface 341 forms a ring wall 342 downward. When the valve is installed, the ring 92 of the check valve 91 is located in the space S and clamped by the ring wall 342 of the pressing surface 341 and the top edge of the lower pipe 21, so as to achieve the effect of stable combination. The ring wall 342 further provides a concentrated gripping force to create a snap-like effect.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can 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 fixing structure of a check valve mounting seat is characterized by comprising:

a seat board, which is provided with a setting hole and at least one hollow part which extends outwards from the edge of the setting hole and is communicated with the setting hole;

the lower pipe is arranged on the seat board and is positioned below the seat board, the lower pipe is provided with a top end aligned with the arrangement hole, and the outer wall surface of the lower pipe is provided with at least one convex block which protrudes outwards; and

the mounting seat is provided with an upper sleeve part, a shoulder part and a lower sleeve part, wherein the shoulder part extends outwards and annularly from the upper sleeve part, the lower sleeve part extends downwards from the shoulder part, and the upper sleeve part is communicated with the interior of the lower sleeve part in space; the center of the upper sleeve part is provided with a through hole, the caliber of the lower sleeve part is larger than that of the upper sleeve part, the bottom surface of the shoulder part positioned in the enclosing range of the lower sleeve part is defined as a pressing surface, the lower sleeve part extends outwards to form at least one convex part, the lower sleeve part extends upwards from the bottom end to form at least one first channel with a preset length, and horizontally extends from the top end of the first channel to one side to form at least one second channel with a preset length;

wherein the lower sleeve portion passes through the setting hole from top to bottom and is sleeved on the lower tube, the at least one convex portion also passes through the at least one hollow-out portion from top to bottom, and in addition, the at least one bump enters the at least one first channel; the mounting base is in the nesting relation, after rotating a preset angle, the at least one lug enters the at least one second channel, and the at least one convex part is at least partially moved to the lower part of the seat plate;

the lower sleeve part forms a recess at the tail end of the at least one second channel, the at least one bump forms a bump, and the bump is embedded into the recess when the at least one bump is positioned in the at least one second channel.

2. The check valve mounting seat fixing structure according to claim 1, further comprising a bolt; the shoulder part extends outwards and horizontally to form a wing part, and the tail end of the wing part is provided with a fixing hole; the seat plate is provided with a screw hole; the bolt passes through the fixing hole and the screwing hole to fix the wing part on the seat board.

3. The retaining structure of a check valve seat according to claim 1, wherein the pressing surface is formed downward to form a ring wall.

4. The check valve mount fixing structure according to claim 1, wherein the lower tube is formed with a large diameter portion at a top end.

5. The retaining structure of a check valve seat according to claim 1, wherein a space is formed between the pressing surface and the top edge of the lower tube.

6. The retaining structure of a check valve seat according to claim 1, wherein the at least one first channel and the at least one second channel extend through the lower sleeve portion.

7. The retaining structure of a check valve seat according to claim 1, wherein the at least one protrusion is two in number, the at least one first channel is two in number, and the at least one second channel is also two in number.

8. The retaining structure of a check valve seat according to claim 1, wherein the at least one hollow portion is two in number, and the at least one protrusion is also two in number.