CN216690404U

CN216690404U - Detachable outlet sleeve for concrete pump truck

Info

Publication number: CN216690404U
Application number: CN202123179226.7U
Authority: CN
Inventors: 张峰; 余正茂; 吕雪军
Original assignee: Anhui Xingma Special Purpose Vehicle Co Ltd
Current assignee: Anhui Xingma Special Purpose Vehicle Co Ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-06-07
Anticipated expiration: 2031-12-17

Abstract

The utility model discloses a detachable outlet sleeve for a concrete pump truck, which belongs to the technical field of pump truck conveying pipes and comprises an outlet sleeve body, wherein a through hole for connecting a hinge elbow is formed in the outlet sleeve body, a group of round holes are formed in one side of the through hole in the vertical direction, an adjusting piece is installed in each round hole, and the outlet sleeve body is further connected and fixed with the hinge elbow through the adjusting piece. The utility model has simple structure, can be disassembled by adopting the matching of the connecting piece and the adjusting piece, leads the outlet sleeve body to be convenient for maintenance, can ensure that the outlet sleeve body is tightly matched with the sealing plane of the hinge bent pipe by adjusting and locking aiming at the defect of assembly clearance caused by manufacturing error, ensures that the sealing is reliable and effective, is convenient to replace, can be replaced in time when the outlet sleeve body is worn to the limit, and has higher economic benefit.

Description

Detachable outlet sleeve for concrete pump truck

Technical Field

The utility model belongs to the technical field of pump truck delivery pipes, and particularly relates to a detachable outlet sleeve for a concrete pump truck.

Background

In a pumping system of a concrete pump truck, an outlet sleeve is an intermediate device for connecting a hopper and a hinge elbow, and concrete is stirred in the hopper, passes through the inner wall of the outlet sleeve, then reaches the hinge elbow and other pipelines, and finally is conveyed to a designated place. The existing outlet sleeve and the hinge elbow are not tightly attached due to manufacturing errors, the sealing plane is often not tight, the sealing ring is extruded under the action of pressure, the sealing failure and the slurry leakage of a concrete pipeline are caused, the concrete pipeline is blocked, and if the concrete pipeline is not treated timely, the concrete can be solidified in the conveying pipeline to enable the conveying pipeline to be scrapped, so that great loss is caused. In addition, most outlet sleeves and the pumping system are of an integral structure, but the outlet sleeves are easily damaged parts, the inner walls of the concrete can be abraded when the concrete passes through the inner walls of the outlet sleeves, and if the concrete cannot be maintained in time, the pumping system cannot operate after the abrasion reaches the limit.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the inventor obtains the technical scheme of the utility model through practice and summary, and the utility model discloses a detachable outlet sleeve for a concrete pump truck, which comprises an outlet sleeve body, wherein a through hole for connecting a hinge elbow is formed in the outlet sleeve body, a group of round holes are formed in one side of the through hole in the vertical direction, an adjusting piece is installed in the round holes, the outlet sleeve body is further fixedly connected with the hinge elbow through the adjusting piece, and the hinge elbow and the outlet sleeve body are ensured to be always tightly attached through adjusting the adjusting piece.

Preferably, install the connecting piece in the through-hole, the connecting piece includes inner tube and outer tube to and be located connecting piece one end and including the recess between tube and the outer tube, the one end at recess place stretches out the through-hole and is connected with the hinge return bend outward, the external diameter of inner tube slightly is less than the internal diameter of hinge return bend. .

Specifically, the through-hole inner wall is equipped with the internal thread, and the outer wall of connecting piece have with the interior screw-thread fit's of through-hole external screw thread, connecting piece and through-hole threaded connection, the pretightning force between threaded connection mode effectively increase connecting piece and export cover body, the fastening effect is better.

Preferably, the depth of the groove is consistent with the length of the extending end of the connecting piece.

Preferably, be provided with the elastic sealing layer in the recess, because the characteristic that the elastic sealing layer closely laminated, when there is the gap because of machining error or installation reason between recess and the hinge return bend, the export cover body still has good leakproofness, avoids appearing the concrete seepage.

Preferably, the number of the circular holes in one group is two.

The adjusting part comprises nuts located on two sides of the round hole and a hinge trunnion of the nut and the round hole, the trunnion hole is formed in the hinge trunnion, the assembly gap defect caused by the manufacturing error is overcome, the hinge elbow and the outlet sleeve body are always tightly attached together by adjusting the length of the hinge trunnion, the outlet sleeve and the hinge elbow are locked through double nuts, and the sealing plane of the outlet sleeve and the sealing plane of the hinge elbow are tightly matched, so that the sealing is reliable and effective.

Compared with the prior art, the utility model can obtain the following technical effects:

according to the utility model, the outlet sleeve body and the hinge elbow are detachably connected by arranging the connecting piece and the adjusting piece. The hinge bent pipe is sleeved through the design of the inner pipe, the outer pipe and the groove of the connecting piece, so that the hinge bent pipe can be detached, the elastic sealing layer is arranged in the groove, and when a gap exists between the groove and the hinge bent pipe due to machining errors or installation reasons, the outlet sleeve body still has good sealing performance, so that concrete leakage is effectively avoided; through adjustment hinge trunnion length, ensure that export cover body and hinge return bend remain the laminating throughout inseparable, the sealed plane cooperation of rethread double nut is guaranteed to export cover body and hinge return bend closely, guarantees to connect holistic leakproofness and the stability of back pumping system.

The detachable outlet sleeve is simple and practical in structure and good in sealing effect, meanwhile, the detachable structure is convenient to maintain, the service life of the outlet sleeve body is effectively prolonged, and good economic benefits are achieved.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural view of the connector of the present invention.

In the figure: 1. an outlet sleeve body; 2. a connecting member; 21. a groove; 22. an outer tube; 23. an inner tube; 3. a nut; 4. a hinge trunnion; 5. an ear canal hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Examples

As shown in fig. 1-2, a detachable outlet sleeve for a concrete pump truck comprises an outlet sleeve body 1, a connecting piece 2 and an adjusting piece;

a through hole is formed in the middle of the outlet sleeve body 1, two round holes are formed in one side of the through hole in the vertical direction, and internal threads are formed in the inner wall of the through hole; the connecting piece 2 consists of an outer pipe 22, an inner pipe 23 and a groove 21 which is positioned at one end of the connecting piece 2 and is positioned between the outer pipe 22 and the inner pipe 23, the outer wall of the connecting piece 2 is provided with an external thread matched with the internal thread of the through hole, one end of the connecting piece 2 where the groove 21 is positioned extends out of the through hole, the depth of the groove 21 is consistent with the extending end of the connecting piece 2, the outer diameter of the inner pipe 23 is slightly smaller than the inner diameter of the hinge elbow, and the hinge elbow is sleeved in the groove 21; the adjusting part comprises two nuts 3 and hinge trunnion 4, and trunnion hole 5 has been seted up on hinge trunnion 4 to guarantee that the 5 centers in trunnion hole of two hinge trunnions 4 are on same axis.

Further, set up the elastic sealing layer in recess 21, rely on the closely laminated characteristic of elastic sealing layer, when there is the gap because of machining error or installation reason between recess and the hinge return bend, export sleeve body still has good leakproofness, avoid appearing the concrete seepage, the elastic sealing layer is preferably the rubber layer, the rubber layer both has better sealing performance, better elasticity has again, especially adapted threaded connection uses, can make it into and install wherein with the corresponding shape of recess 21, also can fix the rubber layer in recess 21 through using sticky.

The working principle is as follows: when the outlet sleeve body 1 and the hinge elbow are installed, the connecting piece 2 and the outlet sleeve body 1 are fixed firstly, namely the connecting piece 2 is screwed into the through hole, and then the hinge elbow is inserted into the groove 21 of the connecting piece 2, so that the hinge elbow and the outlet sleeve body 1 are preliminarily fixed; then, further fix the hinge return bend through the regulating part, earlier with hinge trunnion 4 through the corresponding position of trunnion hole 5 cover on the hinge return bend, then prepare two nuts 3, hinge trunnion 4 passes the round hole on the export cover body 1 through two nuts, locks with export cover body 1.

Claims

1. The utility model provides a concrete pump truck is with detachable export cover, includes export cover body (1), its characterized in that: the outlet sleeve is characterized in that a through hole used for being connected with the hinge elbow is formed in the outlet sleeve body (1), a group of round holes are formed in the vertical direction of one side of each through hole, an adjusting piece is installed in each round hole, and the outlet sleeve body (1) is further fixedly connected with the hinge elbow through the adjusting piece.

2. The detachable outlet sleeve for the concrete pump truck as claimed in claim 1, wherein: install connecting piece (2) in the through-hole, connecting piece (2) include inner tube (23) and outer tube (22) to and be located connecting piece (2) one end and recess (21) between inner tube (23) and outer tube (22), the one end at recess (21) place stretches out the through-hole and is connected with the hinge return bend outward, the external diameter of inner tube (23) slightly is less than the internal diameter of hinge return bend.

3. The detachable outlet sleeve for the concrete pump truck as claimed in claim 2, wherein: the inner wall of the through hole is provided with an internal thread, the outer wall of the connecting piece (2) is provided with an external thread matched with the internal thread of the through hole, and the connecting piece (2) is in threaded connection with the through hole.

4. The detachable outlet sleeve for the concrete pump truck as claimed in claim 3, wherein: the depth of the groove (21) is consistent with the length of the extending end of the connecting piece (2).

5. The detachable outlet sleeve for the concrete pump truck as claimed in claim 4, wherein: an elastic sealing layer is arranged in the groove (21).

6. The detachable outlet sleeve for the concrete pump truck as claimed in any one of claims 1 to 5, wherein: the number of the round holes in one group is two.

7. The detachable outlet sleeve for the concrete pump truck as recited in claim 6, characterized in that: the adjusting part comprises nuts (3) located on two sides of the round hole and a hinge trunnion (4) penetrating through the nuts (3) and the round hole, and an trunnion hole (5) is formed in the hinge trunnion (4).