CN220576655U

CN220576655U - Connecting device for PPR (Polypropylene random) pipe

Info

Publication number: CN220576655U
Application number: CN202321691297.1U
Authority: CN
Inventors: 张敏
Original assignee: Anhui Hongye Plastic Co ltd
Current assignee: Anhui Hongye Plastic Co ltd
Priority date: 2023-06-29
Filing date: 2023-06-29
Publication date: 2024-03-12
Anticipated expiration: 2033-06-29

Abstract

The utility model relates to the technical field of PPR pipe butt joint, and discloses a connecting device for PPR pipes, which comprises the following components: the support base, the inside of support base has the cavity, the inside horizontal direction rotation of support base installs the threaded rod. When the PPR pipes with different diameters are subjected to butt-joint hot melting, the PPR pipes are firstly placed between two V-shaped movable clamping plates, the movable rod is pushed to move upwards through the output end of the electric hydraulic cylinder, at the moment, the conical blocks on the surface of the movable rod are extruded and pushed to push the first rollers at the bottoms of the two symmetrical V-shaped movable clamping plates, so that the upper ends of the two symmetrical V-shaped movable clamping plates relatively deflect by taking the middle parts of the V-shaped movable clamping plates as circle centers, two sides of the PPR pipes are clamped, and meanwhile, the balls at the top of the movable rod are propped against the bottoms of the PPR pipes.

Description

Connecting device for PPR (Polypropylene random) pipe

Technical Field

The utility model relates to the technical field of PPR pipe butt joint, in particular to a connecting device for PPR pipes.

Background

The PPR pipe is produced by using PPR raw materials, and has the advantages of energy conservation, material saving, environmental protection, light weight, high strength, corrosion resistance, smooth inner wall, no scaling, simple construction and maintenance, long service life and the like; in the process of processing PPR pipes, hot melt connection is often required.

The Chinese patent document with the publication number of CN217502812U provides a connecting device for PPR pipes, which comprises a base, wherein the top end of the base is symmetrically provided with two supporting blocks, the top ends of the two supporting blocks are provided with V-shaped clamping grooves, and the top ends of the supporting blocks are provided with positioning components which are positioned above the V-shaped clamping grooves; the V-shaped clamping grooves on the supporting blocks are provided with the screw rods which are matched with the middle threads of the concave plates in a penetrating way and the pressure heads at the bottom ends of the screw rods, so that the outer wall of the PPR pipe can be clamped and fixed at three points, and the convenience of clamping the PPR pipe is improved;

however, according to the scheme, only two PPR pipes are clamped and hot melted, operators are required to manually butt the hot melted PPR pipes after the hot melting, swing can be generated in the process of inserting the two pipes in the manual butt joint process, so that thick places on the inner wall after the hot melting are thin, water leakage and water dripping occur after the water pipe is connected, and the butt joint quality is affected; according to the scheme, when the PPR pipes with the same diameter can be clamped and hot-melted, and when the PPR pipes with the different diameters are subjected to butt joint and hot-melting, after the two pipes are clamped, the two pipes are high and low, and normal hot melting cannot be performed due to the fact that the middle points of the two pipes with the different diameters are not on the same horizontal line, so that the two pipes have certain limitation. Therefore, the utility model designs a connecting device for PPR pipes to solve the problems in the prior art.

Disclosure of Invention

The utility model aims to provide a connecting device for PPR pipes, which solves the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a connection device for PPR tubing, comprising: the support base, the inside of supporting the base has the cavity, the inside horizontal direction rotation of supporting the base is installed the threaded rod, and the one end of threaded rod extends to the outside of supporting the base, the thread bush is installed to the surface symmetry screw thread of threaded rod, and the top fixedly connected with installation box of thread bush, the inside bottom surface fixed mounting of installation box has electric hydraulic cylinder, and is provided with the centre gripping locating component between the output of electric hydraulic cylinder and the inside of installation box.

Preferably, threads are arranged at the front end and the rear end of the threaded rod, and the directions of the threads at the front end and the rear end are opposite.

Preferably, the bottom of the thread bush is fixedly connected with a sliding block, sliding grooves are symmetrically formed in the inner bottom surface of the supporting base, and the bottom of the thread bush is slidably mounted in the sliding grooves in the inner bottom surface of the supporting base through the sliding block.

Preferably, the clamping and positioning assembly comprises: connecting plate and dead lever, connecting plate horizontal direction fixed mounting is in the inside of installing the box, the middle part movable mounting of connecting plate has the movable rod, and the fixed surface of movable rod is connected with the toper piece, the bottom fixed mounting of movable rod is at the output of electronic pneumatic cylinder, the dead lever is equipped with two, two dead lever symmetry fixed connection is at the inside upper end of installing the box, V type movable splint is installed in the surface rotation of dead lever, and the lower extreme of V type movable splint installs first gyro wheel, the surface laminating of first gyro wheel is at the surface at toper piece top, the recess has been seted up to one side of V type movable splint upper end, and the inside rotation of recess installs the second gyro wheel, two be provided with the PPR tubular product between the second gyro wheel.

Preferably, the ball is installed at the top of movable rod, and the top laminating of ball is in the bottom of PPR tubular product.

Preferably, the surface of the fixed rod is provided with a bearing, the inner ring of the bearing is fixedly connected with the surface of the fixed rod, and the outer ring of the bearing is fixedly connected with the inner part of the V-shaped movable clamping plate.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, through the arrangement of the electric hydraulic cylinder, the clamping and positioning assembly, the PPR pipe and other components, when the PPR pipes with different diameters are subjected to butt joint and hot melting, the PPR pipe is firstly placed between the two V-shaped movable clamping plates, the movable rod is pushed to move upwards through the output end of the electric hydraulic cylinder, at the moment, the conical blocks on the surface of the movable rod are extruded and pushed to push the first rollers at the bottoms of the two symmetrical V-shaped movable clamping plates, so that the upper ends of the two symmetrical V-shaped movable clamping plates relatively deflect with the middle parts of the V-shaped movable clamping plates as circle centers to clamp the two sides of the PPR pipe, and meanwhile, when the PPR pipe with different diameters is clamped and fixed by the mode, the central heights of the two PPR pipes are ensured to be consistent, and a high phenomenon and a low phenomenon can not occur, thereby improving the accuracy of butt joint after the PPR pipe is subjected to hot melting;

2. according to the utility model, through the arrangement of the threaded rod, the threaded sleeve, the mounting box and other parts, when two PPR pipes subjected to hot melting are clamped and butted, the threaded rod is rotated to enable the two pipes subjected to hot melting to move relatively, so that the pipes with small diameters can be stably inserted into the pipes with large diameters to finish the butt joint of the pipes, and the phenomenon that the two pipes are swung in the insertion process by manual butt joint is avoided, so that the butt joint quality is affected.

Drawings

FIG. 1 is a schematic view in front cross-section of the present utility model;

FIG. 2 is an enlarged schematic view of the structure A in FIG. 1 according to the present utility model;

fig. 3 is a schematic left-hand cross-sectional view of a partial structure of the mounting box, electro-hydraulic cylinder and clamping and positioning assembly of the present utility model.

In the figure: 1. a support base; 2. a cavity; 3. a threaded rod; 4. a thread sleeve; 5. a mounting box; 6. an electro-hydraulic cylinder; 7. clamping and positioning components; 701. a connecting plate; 702. a movable rod; 7021. a ball; 703. a conical block; 704. a fixed rod; 705. v-shaped movable clamping plates; 706. a first roller; 707. a groove; 708. a second roller; 8. PPR pipe.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, an embodiment of the present utility model is provided: a connection device for PPR tubing, comprising: support base 1, the inside that supports base 1 has cavity 2, support the inside horizontal direction rotation of base 1 and install threaded rod 3, and the one end of threaded rod 3 extends to the outside that supports base 1, the one end fixedly connected with of threaded rod 3 rotates the cap, be convenient for rotate threaded rod 3, threaded sleeve 4 is installed to the surperficial symmetry screw thread of threaded rod 3, and the top fixedly connected with mounting box 5 of threaded sleeve 4, the inside bottom surface fixed mounting of mounting box 5 has electric hydraulic cylinder 6, and be provided with centre gripping locating component 7 between the output of electric hydraulic cylinder 6 and the inside of mounting box 5. Through the setting of centre gripping locating component 7, when carrying out the hot melt butt joint to two PPR tubular products of different diameters, make the intermediate point position of two PPR tubular products on same horizontal line to can not appear the deviation when the tubular product butt joint after the hot melt, improve the accuracy when butt joint.

Referring to fig. 1, in this embodiment: threads are arranged at the front end and the rear end of the threaded rod 3, and the directions of the threads at the front end and the rear end are opposite. Through the opposite direction setting of both ends screw thread around threaded rod 3, when threaded rod 3 rotates, two thread bush 4 of symmetry on threaded rod 3 surface are relative or opposite removal simultaneously to the PPR tubular product after the hot melt is convenient for dock.

Referring to fig. 1, in this embodiment: the bottom fixedly connected with slider of thread bush 4, the spout has been seted up to the inside bottom surface symmetry of supporting base 1, and the bottom of thread bush 4 passes through slider slidable mounting in the spout of supporting base 1 inside bottom surface. The bottom of the thread bush 4 is slidably arranged on the inner bottom surface of the support base 1, so that the degree of freedom limited by the thread bush 4 is limited, and the thread bush 4 can only horizontally move.

Referring to fig. 1-3, in this embodiment: the clamp positioning assembly 7 includes: the connecting plate 701 and the dead lever 704, connecting plate 701 horizontal direction fixed mounting is in the inside of mounting box 5, the middle part movable mounting of connecting plate 701 has movable rod 702, and the fixed surface of movable rod 702 is connected with toper piece 703, the bottom fixed mounting of movable rod 702 is at the output of electric hydraulic cylinder 6, dead lever 704 is equipped with two, two dead levers 704 symmetry fixed connection is at the inside upper end of mounting box 5, V type movable splint 705 is installed in the surface rotation of dead lever 704, and the first gyro wheel 706 is installed to the lower extreme of V type movable splint 705, the surface laminating of first gyro wheel 706 is at the surface at toper piece 703 top, the recess 707 has been seted up to one side of V type movable splint 705 upper end, and the inside rotation of recess 707 is installed second gyro wheel 708, be provided with PPR tubular product 8 between two second gyro wheels 708. When the PPR pipe 8 is clamped and fixed, the PPR pipe 8 is firstly placed between two V-shaped movable clamping plates 705, an electric hydraulic cylinder 6 is started, the movable rod 702 is pushed to move upwards through the output end of the electric hydraulic cylinder 6, at the moment, the conical blocks 703 on the surface of the movable rod 702 move upwards and squeeze and push the first rollers 706 at the bottoms of the two symmetrical V-shaped movable clamping plates 705, at the moment, the upper ends of the two V-shaped movable clamping plates 705 are mutually closed by taking the middle parts of the V-shaped movable clamping plates 705 as circle centers to clamp and fix the two sides of the PPR pipe 8, and meanwhile, the balls 7021 at the top of the movable rod 702 are abutted against and attached to the bottom of the PPR pipe 8, so that the central heights of the PPR pipe 8 are guaranteed to be consistent when the PPR pipe 8 with different diameters is clamped and fixed, and the butt joint accuracy of the PPR pipe after hot melting is improved.

Referring to fig. 1-3, in this embodiment: the ball 7021 is installed on the top of the movable rod 702, and the top of the ball 7021 is attached to the bottom of the PPR pipe 8. The scratch on the surface of the PPR pipe 8 is reduced by the arrangement of the ball 7021.

Referring to fig. 1-3, in this embodiment: the surface of the fixed rod 704 is provided with a bearing, the inner ring of the bearing is fixedly connected with the surface of the fixed rod 704, and the outer ring of the bearing is fixedly connected with the inside of the V-shaped movable clamping plate 705. The stability of the rotation of the V-shaped movable clamp plate 705 is improved through the arrangement of the bearings.

Working principle: when two PPR pipes with different diameters are subjected to hot melting butt joint, the PPR pipe 8 is firstly placed between two V-shaped movable clamping plates 705, an electric hydraulic cylinder 6 is started, the movable rod 702 is pushed to move upwards through the output end of the electric hydraulic cylinder 6, at the moment, a conical block 703 on the surface of the movable rod 702 moves upwards and extrudes and pushes first rollers 706 at the bottoms of the two symmetrical V-shaped movable clamping plates 705, at the moment, the upper ends of the two V-shaped movable clamping plates 705 are mutually closed by taking the middle part of the V-shaped movable clamping plates 705 as the center of a circle, two sides of the PPR pipe 8 are clamped and fixed, meanwhile, a ball 7021 at the top of the movable rod 702 is abutted against and attached to the bottom of the PPR pipe 8, a hot-melting device is placed between two fixed pipes, a rotary cap at one end of a threaded rod 3 is rotated, at the moment, the two threaded sleeves 4 are relatively moved, the pipes clamped at two sides of the upper ends of a box 5 are respectively arranged at the top of the threaded sleeve 4 to heat the hot-melting device, after heating, the threaded rod is taken down, the two hot-melted pipes relatively move through rotation 3, and the pipe with small diameter is inserted into the large-diameter pipe to be completely butted. What is not described in detail in this specification is prior art known to those skilled in the art.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. A connection device for PPR tubing, comprising: support base (1), its characterized in that: the inside of supporting base (1) has cavity (2), the inside horizontal direction of supporting base (1) rotates installs threaded rod (3), and the one end of threaded rod (3) extends to the outside of supporting base (1), threaded sleeve (4) are installed to the surface symmetry screw thread of threaded rod (3), and the top fixedly connected with mounting box (5) of threaded sleeve (4), the inside bottom surface fixed mounting of mounting box (5) has electric hydraulic cylinder (6), and is provided with centre gripping locating component (7) between the inside of the output of electric hydraulic cylinder (6) and mounting box (5).

2. The connection device for PPR pipes according to claim 1, wherein: threads are arranged at the front end and the rear end of the threaded rod (3), and the directions of the threads at the front end and the rear end are opposite.

3. The connection device for PPR pipes according to claim 1, wherein: the bottom of the thread bush (4) is fixedly connected with a sliding block, sliding grooves are symmetrically formed in the inner bottom surface of the supporting base (1), and the bottom of the thread bush (4) is slidably mounted in the sliding grooves in the inner bottom surface of the supporting base (1) through the sliding block.

4. The connection device for PPR pipes according to claim 1, wherein: the clamping and positioning assembly (7) comprises: connecting plate (701) and dead lever (704), connecting plate (701) horizontal direction fixed mounting is in the inside of mounting box (5), the middle part movable mounting of connecting plate (701) has movable rod (702), and the fixed surface of movable rod (702) is connected with toper piece (703), the bottom fixed mounting of movable rod (702) is at the output of electric hydraulic cylinder (6), dead lever (704) are equipped with two, two dead lever (704) symmetry fixed connection is in the inside upper end of mounting box (5), V type movable splint (705) are installed in the surface rotation of dead lever (704), and first gyro wheel (706) are installed to the lower extreme of V type movable splint (705), the surface laminating of first gyro wheel (706) is at the surface at toper piece (703) top, recess (707) are seted up to one side of V type movable splint (705) upper end, and the inside rotation of recess (707) has second gyro wheel (708), two be provided with PPR tubular product (8) between second gyro wheel (708).

5. The connection device for PPR pipes according to claim 4, wherein: the top of movable rod (702) is installed ball (7021), and the top laminating of ball (7021) is in the bottom of PPR tubular product (8).

6. The connection device for PPR pipes according to claim 4, wherein: the surface of the fixed rod (704) is provided with a bearing, the inner ring of the bearing is fixedly connected with the surface of the fixed rod (704), and the outer ring of the bearing is fixedly connected with the inside of the V-shaped movable clamping plate (705).