CN214668163U

CN214668163U - Clamp for pressure resistance detection of plastic pipe

Info

Publication number: CN214668163U
Application number: CN202120404111.4U
Authority: CN
Inventors: 李喆
Original assignee: Shenyang Hexing Automation Equipment Co ltd
Current assignee: Shenyang Hexing Automation Equipment Co ltd
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-11-09
Anticipated expiration: 2031-02-24

Abstract

The utility model relates to a plastics tubular product pressure-bearing detects appurtenance technical field, a withstand voltage of plastics tubular product detects and uses anchor clamps is provided very much, including the anchor clamps body, prepare the cap, lock sleeve and O shape ring, be equipped with the through-hole that matches with plastics tubular product external diameter on preparing the cap, the one end of preparing the cap is the portion of screwing up, the other end is the portion of compressing tightly, the outside that compresses tightly is rotated with the inboard of anchor clamps body one end and is connected, the lock sleeve outside is the inclined plane, the inner wall laminating that corresponds the position with the anchor clamps body matches, the lock sleeve inboard is equipped with many rings of tooth-shaped structures, the sharp tooth end of every ring of tooth-shaped structure is to the one end slope of keeping away from the ready cap, the O shape ring presss from both sides between the inboard first boss of anchor clamps body and lock sleeve, the internal diameter of inboard first boss matches with the external diameter of plastics tubular product, the specific tip card of anchor clamps is on the inboard second boss of anchor clamps body, the inner wall and the check out pipe are connected. This is novel has realized two kinds of functions through special structural design, has portably operated promptly, has improved efficiency, has improved the clamping success rate.

Description

Clamp for pressure resistance detection of plastic pipe

Technical Field

The utility model relates to a plastics tubular product pressure-bearing detects appurtenance technical field, provides a withstand voltage of plastics tubular product detects and uses anchor clamps very much.

Background

After various plastic pipes are produced or when a large number of pipes are used in building decoration, a detection department needs to detect the water pressure resistance of the plastic pipes, the performance of the pipes is checked under the condition of temperature and pressure change, and the number of test pieces needing to be detected is large, so that equipment for clamping the test pieces quickly is needed.

The mode that the gland compresses tightly the clamping ring is adopted to original technique, and the rubber O type ring is recompressed to the clamping ring, and two functions of gland seal and taut test piece are realized on a gland test piece, though compact structure, with low costs some, but two functions of gland seal and taut test piece are all not very ideal, complex operation moreover. Four to six bolts are needed to be screwed when the gland is screwed, the installation speed is slow, and the bolts need to be screwed with average force. The function of tensioning the test piece is not successful every time, and the diameter of the inverted sharp corner of the inner ring of the gland cannot be adjusted, so that the test piece can be tensioned when the outer diameter is larger, and cannot be tensioned when the outer diameter is smaller. When the device is installed on a test, after the interior of the tube is filled with water and the interior of the tube is pressurized with water, because the tension force of the gland on the plastic tube is not very strong, the two-end clamp bodies can move relative to the plastic tube under the action of the water pressure, the shape of the extruded rubber O-shaped ring is changed, and therefore leakage occurs, and the plastic tube can be separated from the clamp bodies in serious conditions, so that the plastic tube needs to be detached and reinstalled.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a withstand voltage of plastics tubular product detects and uses anchor clamps.

The utility model discloses a realize like this, the utility model provides a withstand voltage of plastics tubular product detects and uses anchor clamps is provided, including the anchor clamps body with in proper order with the reserve cap of anchor clamps body installation, lock sleeve and O shape ring, be equipped with the through-hole that matches with the plastics tubular product external diameter on the reserve cap, the one end of reserve cap is the portion of screwing up, the other end is the portion of compressing tightly, the outside of the portion of compressing tightly rotates with the inboard of anchor clamps body one end to be connected, the lock sleeve outside is the inclined plane, match with the inner wall laminating that the anchor clamps body corresponds the position, the lock sleeve inboard is equipped with many rings of tooth-shaped structures, the sharp tooth end of every ring of tooth-shaped structure is to the one end slope of keeping away from the reserve cap, the O shape ring presss from both sides between the inboard first boss of anchor clamps body and lock sleeve, the internal diameter of inboard first boss matches with the external diameter of plastics tubular product, the tip card of anchor clamps body is on the inboard second boss, the inner wall and the check out pipe of inboard second boss are connected.

Preferably, still include the clamping ring, the clamping ring setting be in the lock sleeve with between the O-ring, be equipped with the through-hole that matches with plastics tubular product outer wall on the clamping ring.

Further preferably, the portion outside of screwing up is equipped with 4 breachs, the external screw thread is established in the portion outside of compressing tightly, the inboard of the specific one end of anchor clamps is equipped with the internal thread that matches with the portion external screw thread of compressing tightly.

Preferably, one end of the locking sleeve, which is close to the spare cap, is provided with a cylindrical sleeve, a through hole matched with the outer diameter of the plastic pipe is formed in the cylindrical sleeve, and the inclined surface part of the locking sleeve is of a multi-petal structure.

Preferably, an annular groove is formed between the tooth-shaped structure close to the cylindrical sleeve and the cylindrical sleeve, and the annular groove is formed in the clamp body on the outer side of the inclined plane butt joint end of the outer side of the cylindrical sleeve and the locking sleeve.

Further preferably, the inclined surface part of the locking sleeve is of a 6-lobe structure.

Compared with the prior art, the utility model has the advantages of:

this is novel to the gland has changed into and has been equipped with cap and lock sleeve, the screw thread formula connection is made to the cap outer lane, the bolt hole has been cancelled, the screw thread is made with the cooperation of being equipped with to the internal portion of tubular product anchor clamps, the cap of being equipped with can also produce forward extrusion force to the clamping ring when being connected with the anchor clamps body like this, the inclined plane is made to the lock sleeve front end, also make the inclined plane behind the specific screw thread of tubular product anchor clamps, the angle on two inclined planes is unanimous, the inside back taper angle shape of making of lock sleeve, and process into the multilobe, can take place to warp under the extrusion and prick into the plastic tubing surface downwards, thereby the effect of pulling plastic tubing and extrusion clamping ring has been realized. After the design, two functions are realized, namely, the operation is simple and convenient, the efficiency is improved, and the success rate of clamping is also improved.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and embodiments:

FIG. 1 is a schematic structural view of the whole body of the present invention mounted on a plastic pipe;

FIG. 2 is a schematic view of a structure of the pipe clamp body;

FIG. 3 is a schematic view of a cap;

FIG. 4 is a schematic view of the locking sleeve structure;

fig. 5 is a schematic view of a pressure ring structure.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, 2, 3 and 4, the present invention provides a clamp for pressure resistance detection of a plastic pipe, including a clamp body 1, a spare cap 6, a locking sleeve 5 and an O-ring 3 sequentially mounted on the clamp body 1, the spare cap 6 is provided with a through hole matching with the outer diameter of the plastic pipe, one end of the spare cap 6 is a tightening part 601, the other end is a pressing part 602, the outer side of the pressing part 602 is rotatably connected with the inner side of one end of the clamp body 1, the outer side of the locking sleeve 5 is an inclined surface matching with the inner wall of the corresponding position of the clamp body 1, the inner side of the locking sleeve 5 is provided with a plurality of circles of tooth-shaped structures 501, the sharp tooth end of each circle of tooth-shaped structure 501 inclines towards one end far away from the spare cap 6, the O-ring 3 is clamped between the first boss 101 and the locking sleeve 5 inside the clamp body 1, the inner diameter of the first boss 101 inside is matched with the outer diameter of the plastic pipe, the end of the clamp body 1 is clamped on the second boss 102 inside the clamp body 1, the inner wall of the inner second boss 102 is connected with the detection device adapter.

After each piece is penetrated with a plastic pipe according to the drawing, the rubber O-shaped ring 3 is positioned at the innermost part in the clamp body 1 and is vertically squeezed between the clamp body 1 and the pipe 2, the inclined plane on the excircle of the locking sleeve 5 is matched with the inner inclined plane of the clamp body 1, and the inverted sharp corner of the inner ring of the locking sleeve 5 is pricked on the outer diameter of the plastic pipe 2. The spare cap 6 is rotatably connected with the clamp body 1, and the front end of the spare cap 6 is propped against the rear end of the locking sleeve 5.

When the spare cap 6 is screwed down, the spare cap 6 moves forwards, the front end of the spare cap 6 is propped against the rear end of the locking sleeve 5, the locking sleeve 5 is pushed to move forwards, the front end of the inclined surface on the locking sleeve 5 deforms under the extrusion of the inclined surface of the clamp body 1, the sharp corner moves downwards and is pricked on the outer diameter of the plastic pipe 2, and the locking sleeve 5 can only extrude the O-shaped ring 3 forwards but cannot move backwards. The locking sleeve 5 is pushed forward on the O-shaped ring 3, so that the rubber O-shaped ring 3 is deformed to fill the space.

When the pipe is filled with water and water pressure is applied, the clamp bodies 1 at two ends can move relative to the plastic pipe 2 under the action of pressure in the original condition, the extruded shape of the rubber O-shaped ring 3 is changed, and thus leakage occurs, and the plastic pipe 2 can be separated from the clamp bodies in serious conditions. However, with the locking sleeve 5, the chamfered angle of the inner ring of the locking sleeve 5 is pricked into the outer wall of the plastic pipe 2 during installation, so that the relative movement of the plastic pipe 2 and the clamp body 1 is limited. The higher the pressure is, the deeper the plastic pipe 2 is pricked into, the tighter the hoop is, the more the clamp body 1 and the plastic pipe 2 can be ensured to be fixed, so that the extrusion space of the rubber O-shaped ring 3 is kept unchanged, the leakage cannot occur, the sealing performance is ensured, and the experiment is smoothly carried out.

In order to extrude the O-shaped ring 3 more uniformly, referring to fig. 5, as an improvement of the technical scheme, the extrusion die further comprises a pressing ring 4, wherein the pressing ring 4 is arranged between the locking sleeve 5 and the O-shaped ring 3, and a through hole matched with the outer wall of the plastic pipe is formed in the pressing ring 4.

In the extrusion process, the locking sleeve 5 is extruded on the pressing ring 4, and the pressing ring 4 is extruded on the O-shaped ring 3.

In order to facilitate the tightening of the tightening portion 601 and the connection between the spare cap 6 and the clamp body 1, as an improvement of the technical scheme, 4 notches are formed in the outer side of the tightening portion 601, external threads are formed in the outer side of the pressing portion 602, and internal threads matched with the external threads of the pressing portion 602 are formed in the inner side of one end of the clamp body 1.

In order to facilitate the spare cap 6 to extrude the locking sleeve 5, as an improvement of the technical scheme, one end of the locking sleeve 5, which is close to the spare cap 6, is provided with a cylindrical sleeve 502, a through hole matched with the outer diameter of the plastic pipe is arranged in the cylindrical sleeve 502, and the inclined plane part of the locking sleeve 5 is in a multi-flap structure.

In order to accommodate the deformation caused during the extrusion process, as an improvement, an annular groove is arranged between the tooth-shaped structure 501 close to the cylindrical sleeve 502 and the cylindrical sleeve 502, and an annular groove is arranged on the clamp body 1 outside the inclined surface butt joint end of the outer side of the cylindrical sleeve 502 and the locking sleeve 5.

Preferably, the inclined surface part of the locking sleeve 5 is in a 6-lobe structure.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A clamp for pressure resistance detection of a plastic pipe is characterized by comprising a clamp body (1), a spare cap (6), a locking sleeve (5) and an O-shaped ring (3), wherein the spare cap (6), the locking sleeve (5) and the O-shaped ring (3) are sequentially installed on the clamp body (1), a through hole matched with the outer diameter of the plastic pipe is formed in the spare cap (6), one end of the spare cap (6) is a screwing part (601), the other end of the spare cap is a pressing part (602), the outer side of the pressing part (602) is rotatably connected with the inner side of one end of the clamp body (1), the outer side of the locking sleeve (5) is an inclined plane and is matched with the inner wall of the corresponding position of the clamp body (1), a multi-circle tooth-shaped structure (501) is arranged on the inner side of the locking sleeve (5), the sharp tooth end of each circle tooth-shaped structure (501) inclines towards one end far away from the spare cap (6), the O-shaped ring (3) is clamped between a first boss (101) on the inner side of the clamp body (1) and the locking sleeve (5), the inner diameter of the first boss (101) is matched with the outer diameter of the plastic pipe, the end part of the clamp body (1) is clamped on a second boss (102) on the inner side of the clamp body (1), and the inner wall of the second boss (102) on the inner side is connected with a detection equipment connecting pipe.

2. The clamp for the pressure resistance detection of the plastic pipe according to claim 1, further comprising a pressing ring (4), wherein the pressing ring (4) is arranged between the locking sleeve (5) and the O-shaped ring (3), and a through hole matched with the outer wall of the plastic pipe is formed in the pressing ring (4).

3. The clamp for detecting the pressure resistance of the plastic pipe according to claim 1, wherein 4 notches are formed on the outer side of the tightening part (601), external threads are formed on the outer side of the pressing part (602), and internal threads matched with the external threads of the pressing part (602) are formed on the inner side of one end of the clamp body (1).

4. The plastic pipe pressure resistance detection clamp according to claim 1, wherein a cylindrical sleeve (502) is arranged at one end of the locking sleeve (5) close to the spare cap (6), a through hole matched with the outer diameter of the plastic pipe is formed in the cylindrical sleeve (502), and the inclined surface part of the locking sleeve (5) is in a multi-petal structure.

5. The clamp for detecting the pressure resistance of the plastic pipe as claimed in claim 4, wherein an annular groove is formed between the tooth-shaped structure (501) close to the cylindrical sleeve (502) and the cylindrical sleeve (502), and an annular groove is formed on the clamp body (1) outside the inclined surface butt joint end of the cylindrical sleeve (502) and the locking sleeve (5).

6. The plastic pipe pressure resistance test jig according to claim 4, wherein the inclined surface portion of the locking sleeve (5) has a 6-lobe structure.