CN214535055U

CN214535055U - Novel telescopic joint

Info

Publication number: CN214535055U
Application number: CN202022037471.3U
Authority: CN
Inventors: 杨友龙; 严蒙蒙
Original assignee: Nanjing Liansu Technology Industrial Co ltd
Current assignee: Nanjing Liansu Technology Industrial Co ltd
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-10-29
Anticipated expiration: 2030-09-16

Abstract

The utility model relates to a technical field of building drainage, more specifically relates to a novel telescopic joint, including main part, swivel cap and sealing washer, the main part upper end sets up the second bellmouth, and second bellmouth upper end sets up the flaring, in the main part bellmouth was located to the sealing washer, the diameter was greater than the diameter of flaring, and the flaring is surrounded by evenly distributed's incision back-off and is formed, and the swivel cap below sets up the buckle, the incision back-off with the buckle passes through rotatory buckle and connects. The utility model discloses in, the main part is connected through rotatory buckle subassembly with rotatory lid, and it is more convenient to make to connect, and it is more convenient to assemble for bear the weight of the flaring of sealing washer, can prevent that the sealing washer from reciprocating, and the sealing washer has elasticity, and its diameter is greater than the diameter of flaring, when installing the sealing washer in the flaring, elasticity will compress tightly the flaring, guarantees sealed effect, in order to reach quick, zonulae occludens's installation effect.

Description

Novel telescopic joint

Technical Field

The utility model relates to a technical field of building drainage, more specifically relates to a novel telescopic joint.

Background

At present, the telescopic joint used in the existing building drainage system generally comprises a threaded telescopic joint main body, a threaded telescopic joint cover, a sealing ring and a check ring, wherein the telescopic joint main body is matched with the telescopic joint, the telescopic joint main body is generally in a threaded connection mode with the telescopic joint cover, the forming process and the forming time of a product can be increased by arranging threads on the telescopic joint main body and the telescopic joint cover, the product productivity is low, certain requirements on product forming are met, and after semi-finished products are produced by the telescopic joint cover and the telescopic joint main body, a large amount of manpower and time are needed to be consumed for assembling and boxing, so that the shortcoming of low assembling efficiency is overcome.

Chinese patent CN201520148744.8 discloses a PVC-U drain pipe telescopic joint, including the telescopic joint body, telescopic joint lid and K type sealing washer, telescopic joint body upper end is equipped with trapezoidal external screw thread and the bottom surface is the shoulder hole on inclined plane, the telescopic joint is covered and is equipped with trapezoidal internal thread and seal groove, the seal groove is located trapezoidal internal thread root, K type sealing washer lower extreme embedding shoulder hole, the inclined plane cooperation of sealing washer bottom surface and shoulder hole, in the seal groove is gone into to the embedding of sealing washer upper end, through inclined plane and the cooperation of K type sealing washer increase the leakproofness of telescopic joint, increase the structural strength of telescopic joint through trapezoidal thread. However, in this solution, the formation of the screw thread increases the forming process and time of the product, the product productivity is low, the connection between the expansion joint body and the expansion joint cover requires a lot of manpower and time, and the outdoor installation efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a novel telescopic joint, its simple structure, the shaping time is short, has improved the productivity, has reduced the manpower and the time that the equipment consumed, has improved outdoor dismouting efficiency.

The utility model provides a novel telescopic joint, including main part, rotatory lid and sealing washer, the main part is connected with rotatory lid mutually supporting, and the sealing washer is installed in the main part, and the main part lower extreme is provided with first bellmouth, and the main part upper end is provided with the second bellmouth, and the main part passes through rotatory buckle subassembly with rotatory lid to be connected.

The utility model discloses an expansion joint, when equipment is flexible, riser is connected respectively to first bellmouth and second bellmouth, installs the sealing washer in the main part, guarantees the leakproofness of expansion joint, passes through rotatory buckle subassembly with the main part with rotatory lid again and is connected, and the manpower and the time of consumption when having reduced the equipment have improved outdoor dismouting efficiency.

Furthermore, a circle of annular bayonet is arranged at the top end of the rotary cover.

Furthermore, the inner side of the sealing ring is provided with a bulge, and the bulge and the inner wall of the sealing ring (2) form a herringbone structure.

Furthermore, the upper end part of the second bellmouth is provided with a flaring, and the sealing ring is arranged in the flaring on the main body to prevent the sealing ring from moving up and down.

Furthermore, the sealing ring has elasticity, the diameter of the sealing ring is larger than that of the flaring, and the outer wall surface of the sealing ring is extruded on the inner wall surface of the flaring.

Further, the flare includes a plurality of undercut undercuts evenly distributed around.

Furthermore, 8-20 notches are reversely buckled, and a circle of annular retaining shoulder is arranged on the lower portion of the outer side face of each notch reverse buckle.

Further, a circle of annular clamping groove is formed below the annular retaining shoulder, the annular retaining shoulder is provided with a plurality of notches, a plurality of buckles are arranged at the bottom of the rotary cover and connected with the notches, and the buckles are clamped in the annular clamping groove.

Further, the width of the annular clamping groove is consistent with the thickness of the bottom of the buckle, the annular blocking shoulder is provided with 4 notches which are uniformly arranged, and the bottom of the rotary cover is provided with 4 buckles which are uniformly distributed.

Further, the incision back-off with the buckle joint, main part and rotatory joint of rotatory lid promptly have reduced the manpower and the time that consume when the equipment, have improved outdoor dismouting efficiency.

The utility model discloses an expansion joint compares with the background art, and the technological effect who produces is:

through changing the structure of telescopic joint, realize reducing the shaping time of rotatory lid, improve the productivity, reduce the manpower and the time that the equipment consumed, improve outdoor dismouting efficiency.

Drawings

FIG. 1 is a schematic structural view of a novel telescopic joint;

FIG. 2 is a schematic structural view of the novel expansion joint before rotation connection;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic structural view of the novel expansion joint after being rotatably connected;

FIG. 5 is an enlarged view of the portion B of FIG. 4;

in the drawings: 1-rotating the cover; 2-sealing ring; 3-a body; 11-buckling; 12-a ring bayonet; 31-a first socket; 32-a second socket; 33-flaring; 331-undercut reversing; 34-an annular shoulder; 341-gap; 35-ring groove.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

The utility model discloses the most critical design lies in being connected main part 3 and the threaded connection replacement of rotatory lid 1 for rotatory buckle formula, realizes reducing the shaping time of rotatory lid 1, improves outdoor dismouting efficiency.

As shown in fig. 1, the utility model provides an expansion joint, expansion joint include main part 3, swivel cap 1 and sealing washer 2, and main part 3 is connected with swivel cap 1 mutually supporting, and sealing washer 2 is installed in

main part

3, and 3 lower extremes of main part are provided with

first bellmouth

31, and 3 upper ends of main part are provided with second bellmouth 32, main part 3 and the rotatory joint of swivel cap 1.

From the above description, the beneficial effects of the utility model reside in that the telescopic joint that provides, main part 3 are connected through rotatory buckle subassembly with rotatory lid 1, and the manpower and the time of consumption when having reduced the equipment have improved outdoor dismouting efficiency.

In one embodiment, the top end of the rotary cap 1 is provided with a ring-shaped bayonet 12, and when the rotary cap 1 is pressed downwards to the main body 3, the ring-shaped bayonet 12 presses the main body 3 to deform.

In one embodiment, the inner side of the sealing ring 2 is provided with a bulge, the bulge and the inner wall of the sealing ring 2 form a herringbone structure, when the annular bayonet 12 extrudes the main body 3 to deform, the stress generated after deformation compresses the upper end of the sealing ring 2, and simultaneously, the lower end of the sealing ring 2 compresses the main body 3.

As shown in fig. 2, in one embodiment, the inner wall of the sealing ring 2 is protruded to form a double-person structure with the inner wall, so as to ensure the sealing performance of the telescopic joint, it should be noted that the sealing ring 2 may be a multi-person structure.

In one embodiment, as shown in fig. 2, the upper end portion of the second socket 32 is provided with a flared opening 33, the sealing ring 2 is arranged in the flared opening 33 of the main body 3, a breaking part is arranged between the flared opening and the second socket to prevent the sealing ring 2 from moving downwards, when the rotary cover 1 is connected with the main body 3, the rotary cover 1 moves downwards to prevent the sealing ring 2 from moving upwards, and the breaking part between the flared opening 33 and the second socket 32 and the rotary cover 1 can prevent the sealing ring 2 from moving upwards and downwards under the combined action.

In one embodiment, the sealing ring 2 has elasticity, the diameter of the sealing ring 2 is larger than that of the flared opening 33, when the sealing ring 2 is installed in the flared opening 33, the sealing ring 2 is squeezed by the flared opening 33 to generate elasticity, the elasticity presses the outer wall surface of the sealing ring 2 against the inner wall surface of the flared opening 33, and the sealing ring 2 and the flared opening 33 are squeezed with each other to ensure the sealing effect.

In one embodiment, the flared end 33 includes a plurality of cut-outs 331 uniformly distributed around the flared end, the cut-outs 331 are partially conical, and have a small top and a large bottom, and the cut-outs 331 are connected in pairs so that the inside of the flared end 33 is hollow cylindrical for mounting the sealing ring 2.

As shown in fig. 4, in one embodiment, the sealing ring 2 is installed in the flared opening 33, when the rotary cap 1 presses the main body 3 downwards, the annular bayonet 12 at the top end of the rotary cap 1 presses the upper small end of the undercut 331 to deform the undercut 331, and the stress generated after the deformation of the undercut 331 presses the undercut 331 against the sealing ring 2, i.e. the inner wall of the flared opening 33 presses the outer wall of the sealing ring 2, so as to achieve the installation effect of tight connection, and when the rotary cap 1 rotates, the lower large end of the undercut 331 is clamped on the rotary cap 1.

In one embodiment, the number of the cut-outs 331 is 8-20, and a ring of annular retaining shoulders 34 are arranged at the lower part of the outer side surface of the cut-outs 331, so that when the main body 3 is rotatably clamped with the rotary cover 1, the annular retaining shoulders 34 retain the rotary cover 1, and the main body 3 is tightly connected with the rotary cover 1 without being peeled off.

In one embodiment, a circle of annular clamping grooves 35 are formed below the annular blocking shoulder 34, the annular blocking shoulder 34 is provided with a plurality of notches 341, a plurality of buckles 11 are arranged at the bottom of the rotary cover 1, the buckles 11 are connected with the notches 341, the buckles 11 are clamped in the annular clamping grooves 35, the number of the notches 341 is not less than that of the buckles 11, and the annular blocking shoulder 34 is provided with notches 341 corresponding to each buckle 11, in the implementation process, when the plurality of buckles 11 face the corresponding notches 341, the plurality of buckles are pressed down to the annular clamping grooves 35, namely, the rotary cover 1 compresses the main body 3, the plurality of buckles 11 rotate in the annular clamping grooves 35, so that the buckles 11 rotate to the annular blocking shoulder 34 at the bottom of the notches back-off buckles 331, the annular blocking shoulder 34 clamps 11 are clamped in the annular clamping grooves 35, and the rotary cover 1 is tightly connected with the main body 3.

As shown in fig. 2, in one embodiment, the width of the circular slot 35 is equal to the thickness of the bottom of the buckle 11, the circular blocking shoulder 34 is provided with 4 notches 341 uniformly arranged, the bottom of the rotary cover 1 is provided with 4 buckles 11 uniformly distributed, the thickness of the buckle 11 is equal to the width of the circular slot 35, so that the buckle 11 is just blocked in the circular slot 35, and it is ensured that the rotary cover 1 is tightly connected with the main body 3, and is not loosened.

In one embodiment, the notch inverted buckle 331 is connected with the buckle 11 in a clamping manner, as shown in fig. 3, in the implementation, the buckle 11 of the rotary cover 1 faces the notch 341 of the annular shoulder 34 and is connected and pressed down to the position of the annular clamping groove 35, even if the rotary cover 1 is pressed towards the main body 3, at this time, the buckle 11 just cooperates with the annular clamping groove 35, and then the rotary cover 1 is rotated, as shown in fig. 5, the bottom of the buckle 11 rotates in the annular clamping groove 35, so that the notch inverted buckle 331 is connected with the buckle 11, the annular shoulder 34 at the bottom of the notch inverted buckle 331 clamps the buckle 11 in the annular clamping groove 35, so that the rotary cover 1 is not peeled off from the main body 3, that is, the main body 3 is connected with the rotary cover 1 through the rotary buckle assembly, the labor and time consumed by assembly are reduced, and the outdoor dismounting efficiency is improved.

In the detailed description of the embodiments, various technical features may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A novel expansion joint comprises a main body (3), a rotary cover (1) and a sealing ring (2), wherein the main body (3) and the rotary cover (1) are mutually matched and connected, the sealing ring (2) is installed in the main body (3), a first bell mouth (31) is arranged at the lower end of the main body (3), a second bell mouth (32) is arranged at the upper end of the main body (3), and the novel expansion joint is characterized in that the main body (3) and the rotary cover (1) are rotationally clamped through a rotary clamping component; second bellmouth (32) upper end part is provided with the annular and keeps off shoulder (34), the annular keeps off shoulder (34) and sets up many places breach (341), rotatory lid (1) bottom sets up many places buckle (11), buckle (11) with breach (341) correspond and are connected, buckle (11) with the annular keeps off shoulder (34) joint.

2. A novel telescopic joint according to claim 1, wherein the top end of the rotary cap is provided with a ring of annular bayonet (12).

3. The novel telescopic joint as claimed in claim 1, wherein a protrusion is arranged on the inner side of the sealing ring (2), and the protrusion and the inner wall of the sealing ring (2) form a herringbone structure.

4. The novel telescopic joint according to claim 1, wherein the second bell mouth (32) is provided with a flared mouth (33) at its upper end portion, the sealing ring (2) being provided in the flared mouth (33).

5. A novel telescopic joint according to claim 3, wherein the sealing ring (2) has elasticity, the diameter of the sealing ring (2) is larger than that of the flared opening (33), and the outer wall surface of the sealing ring (2) is pressed against the inner wall surface of the flared opening (33).

6. A novel telescopic joint according to claim 4, characterized in that the flared end (33) comprises a plurality of undercut inversions (331) distributed uniformly around it.

7. The novel telescopic joint as claimed in claim 6, wherein the number of the cut-outs (331) is 8-20, and a ring-shaped shoulder (34) is arranged on the lower portion of the outer side surface of the cut-outs (331).

8. The novel telescopic joint according to claim 7, wherein a ring of annular clamping grooves (35) are formed below the annular retaining shoulder (34), and the snap-fit is clamped in the annular clamping grooves (35).

9. The novel telescopic joint as claimed in claim 8, wherein the width of the annular clamping groove (35) is consistent with the thickness of the bottom of the buckle (11), the annular blocking shoulder (34) is provided with 4 uniformly arranged notches (341), and the bottom of the rotary cover (1) is provided with 4 uniformly distributed buckles (11).

10. A novel telescopic joint according to claim 9, wherein the undercut (331) is snap-fitted to the snap (11).