CN214266091U

CN214266091U - Cement pipe mould convenient to disassemble

Info

Publication number: CN214266091U
Application number: CN202023163390.4U
Authority: CN
Inventors: 曹爱清; 贾新阳; 王亚东
Original assignee: Beijing Miyun Cement Products Co ltd
Current assignee: Beijing Miyun Cement Products Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-09-24
Anticipated expiration: 2030-12-24

Abstract

The application relates to a cement pipe mould convenient to disassemble, which comprises a core mould with a cylindrical structure, an outer mould with a circular pipe structure and a bottom support, wherein the outer mould is sleeved outside the core mould, a tubular cavity is formed between the core mould and the outer mould, and the bottom support is arranged at the lower side of the outer mould; the outer die is provided with an axially adjustable compression ring, and a limiting piece is arranged on the lower side of the compression ring in the outer die in a penetrating manner; be provided with on the outer wall of collet with locating part complex spacing groove, the locating part inserts the spacing groove under the clamp ring is down acted on. When the collet is disassembled, the collet can be disassembled from the lower side of the outer die only by moving the pressing ring upwards to withdraw the limiting piece from the limiting groove, so that the disassembly is more convenient and the working efficiency is improved; the application has the effects of convenient disassembly, good sealing performance, stable installation, convenient assembly and improvement of the working efficiency.

Description

Cement pipe mould convenient to disassemble

Technical Field

The application relates to the field of cement pipe molds, in particular to a cement pipe mold convenient to disassemble.

Background

The cement pipe has wide application, can be used as a sewer pipeline in urban construction foundations, and can discharge sewage, flood control drainage, and water feeding pipes and farmland motor-pumped wells used in special factories and mines. Because the cement pipe is used in a large amount, the cement pipe mould is widely improved as an important part for manufacturing the cement pipe.

The existing cement pipe mould comprises an outer mould and an inner mould, wherein the lower ends of the outer mould and the inner mould are connected with an annular bottom support, cement is injected between the outer mould and the inner mould, and the outer mould, the inner mould and the bottom support of a cement pipe need to be removed after the cement pipe processing step is finished, so that the preparation of the cement pipe is finished.

The outer die and the bottom support are mostly connected through flanges and are screwed down through screws. When the screw is disassembled, the screw needs to be completely unscrewed, so that the process of removing the bottom support from the cement pipe is time-consuming and labor-consuming. In view of the above-mentioned related art, the inventors consider that the cement pipe mold has a drawback of inconvenient disassembly.

SUMMERY OF THE UTILITY MODEL

In order to make cement pipe mould convenient to detach, this application provides a cement pipe mould of convenient dismantlement.

The application provides a convenient cement pipe mould of dismantling adopts following technical scheme:

a cement pipe mould convenient to disassemble comprises a core mould with a cylindrical structure, an outer mould with a circular pipe structure and a bottom support, wherein the outer mould is sleeved outside the core mould, a tubular cavity is formed between the core mould and the outer mould, and the bottom support is arranged at the lower side of the outer mould; the outer die is provided with an axially adjustable compression ring, and a limiting piece is arranged on the lower side of the compression ring in the outer die in a penetrating manner; be provided with on the outer wall of collet with locating part complex spacing groove, the locating part inserts the spacing groove under the clamp ring is down acted on.

By adopting the technical scheme, the core mould, the outer mould and the bottom support are spliced to obtain the tubular cavity, cement is poured into the tubular cavity, and after the cement is formed into the cement pipe, the bottom support and the core mould are detached to demould the cement pipe; when the collet is dismounted, the collet can be dismounted from the lower side of the outer die by only moving the pressing ring upwards to withdraw the limiting part from the limiting groove, so that the collet is more convenient to dismount, and the working efficiency is improved.

Optionally, the outer diameter of the lower end of the outer die is increased to form an extension ring, the inner diameter of the extension ring is matched with the outer diameter of the bottom support, and the extension ring is sleeved on the upper side of the bottom support; the limiting piece is perpendicular to the axis of the outer die and penetrates through the extension ring; the compression ring inner wall downside sets up to the clamping face that the cross-section is the slash, and the outer wall upside that the locating part deviates from the collet sets up to the stress surface with clamping face complex.

By adopting the technical scheme, the assembly position of the outer die and the mop can be more accurate by sleeving the bottom support by the extension ring; the clamp ring converts vertical pressure into radial pressure through the cooperation of clamp surface and stress surface, makes the locating part insert the spacing groove perpendicularly, makes the grafting of locating part more stable.

Optionally, the compression ring is in threaded connection with the outer die.

By adopting the technical scheme, when the compression ring is screwed downwards, the limiting piece is inserted into the limiting groove by the acting force of the compression surface to the stress surface; threaded connection can make reciprocating of clamp ring be convenient for adjust to be difficult for reciprocating after adjusting, thereby make the grafting of locating part more stable.

Optionally, the limiting part is sleeved with an elastic part, one end of the elastic part is connected with the limiting part, and the other end of the elastic part is connected with the outer wall of the outer mold.

By adopting the technical scheme, when the pressing ring is screwed upwards, the pressing surface moves upwards along with the pressing ring, so that the range of outward movement of the stress surface is enlarged, and the limiting piece moves outwards under the action of the elastic piece, so that the stress surface is continuously abutted against the pressing surface; when the pressing ring is screwed upwards until the end part of the limiting part completely exits from the limiting groove, the outer die and the bottom support can be detached.

Optionally, a limiting convex ring is arranged on the outer die and positioned on the upper side of the compression ring.

By adopting the technical scheme, the highest height of the upward movement of the compression ring is limited, and the compression ring and the limiting part are kept in a butt joint state, so that the stress surface and the compression surface are not easy to stagger, and the compression ring is not easy to separate from the upper side of the outer die.

Optionally, one end of the limiting member inserted into the limiting groove is set to be an inclined surface, and the inclined surface is inclined upwards.

Through adopting above-mentioned technical scheme, make locating part more easy cartridge target in place when inserting the spacing groove, also can make external mold and collet can be more laborsaving when the assembly through the cooperation at inclined plane and spacing groove border.

Optionally, a limiting convex ring is arranged on the lower side of the outer die, and a limiting groove matched with the limiting convex ring is arranged on the upper side of the bottom support.

Through adopting above-mentioned technical scheme, through the cooperation of spacing bulge loop and spacing recess, can make the cartridge between external mold and the collet more stable.

Optionally, a sealing ring is arranged between the limiting convex ring and the limiting groove.

By adopting the technical scheme, the sealing ring can improve the sealing property of the cement pipe die and can also play a role in buffering between the outer die and the bottom support.

Optionally, the device further comprises a base arranged on the lower side of the bottom support, and a boss with a cylindrical structure is arranged on the upper side of the base; the core mould is fixed on the upper side of the boss, and the boss is sleeved with the bottom support.

By adopting the technical scheme, the base can stably support the bottom support; the core mould is fixed on the boss, and the outer mould and the bottom support only need to be lifted up during demoulding, and the core mould does not need to be disassembled.

Optionally, a transitional arc-shaped concave surface is arranged between the base and the outer wall of the boss; the lower side of the inner wall of the bottom support is provided with an arc convex surface matched with the arc concave surface.

Through adopting above-mentioned technical scheme, through the cooperation of arc convex surface and arc concave surface, when establishing the cartridge with the collet cover, the internal diameter of collet downside upwards diminishes from big-end-up, makes the collet can overlap on mandrel and boss more easily.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the collet is disassembled, the collet can be disassembled from the lower side of the outer die only by moving the pressing ring upwards to withdraw the limiting piece from the limiting groove, so that the disassembly is more convenient and the working efficiency is improved;

2. by arranging the elastic piece, when the pressing ring is screwed upwards, the limiting piece moves outwards under the action of the spring, and when the pressing ring is screwed upwards until the end part of the limiting piece completely exits from the limiting groove, the outer die and the bottom support can be disassembled, so that the disassembling efficiency is further improved;

3. through setting up the boss, fix the mandrel on the boss, carry out the drawing of patterns and make, only need to mention external mold and collet, need not dismantle the mandrel again.

Drawings

FIG. 1 is a cross-sectional view of a cement pipe mold that is easy to disassemble;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a partially enlarged sectional view of the cement pipe mold with the bottom bracket detached for convenient detachment.

Description of reference numerals: 1. a base; 11. a boss; 12. an arc-shaped concave surface; 2. a core mold; 3. an outer mold; 31. a limit convex ring; 32. an extension convex ring; 321. an extension ring; 3211. a limiting hole; 322. a limit convex ring; 33. a compression ring; 331. a compression surface; 34. a limiting member; 341. a stress surface; 342. an extension portion; 343. a spring; 344. a bevel; 4. a tubular cavity; 5. a bottom support; 51. a limiting groove; 511. a seal ring; 52. an arc convex surface; 53. a limiting groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a cement pipe mould convenient to disassemble. Referring to fig. 1, the cement pipe mold convenient to disassemble includes a base 1 of a cylindrical structure, a core mold 2, an outer mold 3 of a circular pipe structure, and a bottom support 5. The outer diameter of the core mold 2 is consistent with the inner diameter of the cement pipe, the inner diameter of the outer mold 3 is consistent with the outer diameter of the cement pipe, the outer mold 3 is sleeved outside the core mold 2, and a tubular cavity 4 is formed between the core mold 2 and the outer mold 3; collet 5 sets up in 3 downside of external mold, and base 1 sets up at

collet

5 and 2 downside of mandrel, and collet 5 and mandrel 2 support.

A boss 11 with a cylindrical structure is coaxially fixed on the upper side of the base 1, the outer diameter of the boss 11 is consistent with that of the core mold 2, and the core mold 2 is vertically fixed on the boss 11; the bottom support 5 is also of a circular tube structure, and the inner diameter of the bottom support 5 is consistent with the outer diameter of the core mold 2 and is sleeved on the boss 11.

In order to facilitate the insertion of the base 1 during installation, the lower side of the inner wall of the bottom support 5 is provided with an arc convex surface 52; an arc concave surface 12 matched with the arc convex surface 52 is arranged between the base 1 and the outer wall of the boss 11. Through the arc convex surface 52, when the mounting 5 is sleeved and inserted, the inner diameter of the lower side of the mounting 5 is reduced upwards, so that the mounting 5 can be more easily sleeved on the core mold 2 and the boss 11.

Referring to fig. 1 and 2, in order to make the assembly between the outer mold 3 and the bottom support 5 more accurate, a limiting convex ring 31 is coaxially fixed on the lower side of the outer mold 3, the inner wall of the limiting convex ring 31 is flush with the inner wall of the outer mold 3, and a limiting groove 51 matched with the limiting convex ring 31 is arranged on the upper side of the bottom support 5; the plug-in mounting between the outer die 3 and the bottom support 5 can be more stable through the matching of the limit convex ring 31 and the limit groove 51. A sealing ring 511 is arranged between the limiting convex ring 31 and the limiting groove 51, so that the sealing property of the cement pipe mould is improved, and the buffer effect between the outer mould 3 and the bottom support 5 can be realized.

In order to further improve the stability of the assembly between the outer die 3 and the shoe 5, the lower side of the outer die 3 extends outwards in the radial direction to form an extension convex ring 32, and the outer diameter of the extension convex ring 32 is larger than that of the shoe 5; the part of the outer diameter of the lower end of the extension convex ring 32, which is larger than the bottom support 5, extends downwards to form an extension ring 321, the outer wall of the extension ring 321 is flush with the outer wall of the extension convex ring 32, and the inner diameter of the extension ring 321 is consistent with the outer diameter of the bottom support 5, so that the extension ring 321 can be sleeved on the outer side of the bottom support 5 during assembly.

Referring to fig. 2 and 3, in order to fixedly mount the outer die 3 and the bottom support 5, a compression ring 33 is connected to the outer wall of the extension convex ring 32 in a threaded manner; the outer wall of the extension convex ring 32 is provided with an external thread, the upper side of the inner wall of the compression ring 33 is provided with an internal thread in a matching way, and the lower side of the inner wall of the compression ring 33 is provided with a compression surface 331 with an oblique section, wherein in the embodiment, the oblique section is set to be 45 degrees.

The outer die 3 is provided with a plurality of limiting pieces 34 for limiting the position between the outer die 3 and the bottom support 5, the limiting pieces 34 are horizontally arranged in a cylindrical structure, and the limiting pieces 34 are perpendicular to the axis of the outer die 3 and are arranged along the circumferential surface of the extension ring 321; the extension ring 321 is transversely provided with a limiting hole 3211 matched with the limiting member 34, the outer wall of the bottom support 5 is provided with a limiting groove 53 matched with the limiting member 34, and the limiting member 34 penetrates through the extension ring 321 through the limiting hole 3211 and is inserted into the limiting groove 53, so that the position between the outer mold 3 and the bottom support 5 is fixed.

Referring to fig. 2 and 3, the upper side of the outer wall of the limiting member 34 away from the bottom support 5 is provided with a force bearing surface 341 matched with the pressing surface 331; when the pressing ring 33 is screwed downward, the stopper 34 is inserted into the stopper groove 53 by the force of the pressing surface 331 against the force receiving surface 341.

One end of the limiting member 34 on the stressed surface 341 extends outward in the radial direction to form an extending portion 342, an elastic member is sleeved on the limiting member 34, and the elastic member is a spring 343 with better elasticity; one end of the spring 343 abuts against one side of the extension 342, which is away from the force-bearing surface 341, and the other end abuts against the outer wall of the extension ring 321. When the pressing ring 33 is screwed upwards, the pressing surface 331 moves upwards along with the pressing ring, so that the range of outward movement of the force-bearing surface 341 is enlarged, the limiting piece 34 moves outwards under the action of the spring 343, and the force-bearing surface 341 continues to abut against the pressing surface 331; when the pressing ring 33 is screwed upwards until the end of the limiting part 34 completely exits the limiting groove 53, the outer die 3 and the bottom support 5 can be detached.

One end of the limiting piece 34 inserted into the limiting groove 53 is provided with an inclined surface 344, and the inclined surface 344 inclines upwards; the limiting piece 34 can be inserted into the limiting groove 53 more easily, and the outer die 3 and the bottom support 5 can be assembled more easily through the matching of the inclined surface 344 and the edge of the limiting groove 53.

A limiting convex ring 322 is fixed on the outer die 3 and located on the upper side of the pressing ring 33, the lower end of the limiting convex ring 322 is slightly higher than the upper edge of the pressing ring 33 when the limiting member 34 completely exits from the limiting groove 53, so that the maximum upward movement height of the pressing ring 33 is limited, and the pressing ring 33 and the limiting member 34 are kept in a contact state.

The cement pipe mould of this application embodiment convenient dismantlement implements the principle and does: at present, the base support 5 is sleeved on the boss 11, the outer die 3 is inserted into the limiting groove 51, the pressing ring 33 is screwed downwards, the limiting part 34 is driven to be inserted into the limiting groove 53, and the outer die 3 and the base support 5 are installed.

Pouring cement in the tubular cavity 4, lifting the outer die 3 and the bottom support 5 after the cement is formed into a cement pipe, screwing the pressing ring 33 upwards when the bottom support 5 needs to be dismounted, withdrawing the limiting part 34 from the limiting groove 53 under the action of the spring 343, and then taking down the bottom support 5 for demoulding.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a convenient cement pipe mould of dismantling, includes mandrel (2) of cylinder structure, outer mold (3) and collet (5) of pipe structure, and mandrel (2) outside is located to outer mold (3) cover, forms tubulose cavity (4) between mandrel (2) and outer mold (3), and collet (5) set up at outer mold (3) downside, its characterized in that: the outer die (3) is provided with an axially adjustable compression ring (33), and a limiting piece (34) penetrates through the outer die (3) and is positioned on the lower side of the compression ring (33); the outer wall of the bottom support (5) is provided with a limiting groove (53) matched with the limiting piece (34), and the limiting piece (34) is inserted into the limiting groove (53) under the downward action of the pressing ring (33).

2. The cement pipe mold facilitating disassembly as claimed in claim 1, wherein: the outer diameter of the lower end of the outer die (3) is increased to form an extension ring (321), the inner diameter of the extension ring (321) is matched with the outer diameter of the bottom support (5), and the extension ring (321) is sleeved on the upper side of the bottom support (5); the limiting piece (34) is perpendicular to the axis of the outer die (3) and penetrates through the extension ring (321); the lower side of the inner wall of the compression ring (33) is provided with a compression surface (331) with a cross section being oblique line, and the upper side of the outer wall of the limiting piece (34) departing from the bottom support (5) is provided with a stress surface (341) matched with the compression surface (331).

3. The cement pipe mold facilitating disassembly as claimed in claim 2, wherein: the compression ring (33) is in threaded connection with the outer die (3).

4. The cement pipe mold facilitating disassembly as claimed in claim 3, wherein: the limiting piece (34) is sleeved with an elastic piece, one end of the elastic piece is connected with the limiting piece (34), and the other end of the elastic piece is connected with the outer wall of the outer die (3).

5. The cement pipe mold facilitating disassembly as claimed in claim 4, wherein: and a limiting convex ring (322) is arranged on the outer die (3) and positioned on the upper side of the compression ring (33).

6. The cement pipe mold facilitating disassembly as claimed in claim 4, wherein: one end of the limiting piece (34) inserted into the limiting groove (53) is provided with an inclined surface (344), and the inclined surface (344) inclines upwards.

7. The cement pipe mold facilitating disassembly as claimed in claim 4, wherein: a limiting convex ring (31) is arranged on the lower side of the outer die (3), and a limiting groove (51) matched with the limiting convex ring (31) is arranged on the upper side of the bottom support (5).

8. The cement pipe mold facilitating disassembly as recited in claim 7, wherein: and a sealing ring (511) is arranged between the limiting convex ring (31) and the limiting groove (51).

9. The cement pipe mold facilitating disassembly as claimed in claim 1, wherein: the device also comprises a base (1) arranged on the lower side of the bottom support (5), and a boss (11) with a cylindrical structure is arranged on the upper side of the base (1); the core mould (2) is fixed on the upper side of the boss (11), and the bottom support (5) is sleeved on the boss (11).

10. The cement pipe mold facilitating disassembly as recited in claim 9, wherein: a transitional arc concave surface (12) is arranged between the base (1) and the outer wall of the boss (11); an arc convex surface (52) matched with the arc concave surface (12) is arranged on the lower side of the inner wall of the bottom support (5).