A new adjustable concrete distributor
By introducing structures such as support shaft tubes, support frames, pulleys, and counterweights into the concrete placing boom, the deformation problem caused by the lack of support in the placing pipe was solved, thereby improving the stability and sealing of the placing boom.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SANXIANG CONSTR ENG (SHANDONG) TECH DEV CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-19
AI Technical Summary
The existing concrete placing boom lacks a support device at the end of the placing pipe, which makes it prone to deformation after long-term use and affects stability.
The structure adopts a support shaft tube, support frame, pulley, counterweight groove and T-shaped counterweight block, etc. The support and pulling of the cloth tube are achieved by steel wire rope and fastening bolts, and the sealing ring and limit end cap are combined to ensure the sealing performance.
It improves the stability of the concrete placing machine, prevents the placing tube from deforming during operation, and enhances the service life and operational reliability of the equipment.
Smart Images

Figure CN224379428U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a novel adjustable concrete placing machine, belonging to the field of concrete placing technology. Background Technology
[0002] Currently used concrete placing booms have a simple structure, with no supporting device between the placing pipe at the end and the frame. After prolonged use, the placing pipe at the end is prone to deformation, seriously affecting the stability of the placing boom. To solve the above problems, a new technical solution is provided. Utility Model Content
[0003] The purpose of this invention is to provide a novel adjustable concrete placing boom to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a novel adjustable concrete placing boom, comprising a base, a support shaft tube welded to the middle of the top of the base, a support frame rotatably connected to the top of the support shaft tube, a pulley, a counterweight groove and a first placing pipe provided on the support frame, the pulley being fixed to the middle and rear end of the top of the support frame by a bracket, the counterweight groove being opened at the rear end of the support frame, and a T-shaped counterweight block being nested in the counterweight groove, a lifting ring being pre-embedded in the middle of the top of the T-shaped counterweight block, the first placing pipe being fixed inside the support frame by screws, and a DN-type rotary joint being fixed to the bottom of the rear end of the first placing pipe through and extending to the bottom of the support shaft tube by screws.
[0005] Preferably, an extension fabric tube is nested inside the first fabric tube. The extension fabric tube is provided with a fabric hose, a U-shaped bracket, and a groove. The fabric hose is fixed to the bottom front end of the extension fabric tube by screws. The U-shaped bracket is welded to the top front end of the extension fabric tube. The groove is opened at the rear end of the extension fabric tube, and a sealing ring is fitted on the groove. A limit end cap is fitted at the front end of the sealing ring. The limit end cap is fixed to the front end of the first fabric tube by screws.
[0006] Preferably, the U-shaped bracket is provided with a winding wheel and a fastening bolt. The winding wheel is rotatably connected inside the U-shaped bracket, and the main shaft of the winding wheel passes through and extends to the right side of the U-shaped bracket, where a handwheel is fixed by screws. The fastening bolt is threadedly connected to the left side of the U-shaped bracket.
[0007] Preferably, a steel wire rope is wound on the reel, and the end of the steel wire rope passes over the pulley and is fixedly connected to the lifting ring.
[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: the end of the steel wire rope of this utility model crosses the pulley and is fixedly connected to the lifting ring, and the extension cloth tube can be easily pulled and supported by the T-shaped counterweight; the fastening bolt is connected to the left side of the U-shaped bracket by thread, and the winding wheel can be easily locked by the fastening bolt; a sealing ring is fitted on the groove, which can easily seal the inner wall of the first cloth tube and the extension cloth tube; in summary, this utility model can easily support the extension cloth tube of the cloth placing machine, effectively improving the stability of the cloth placing machine. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the structure of this utility model;
[0010] Figure 2 This is a schematic diagram of the support frame structure of this utility model;
[0011] Figure 3 This is a schematic diagram of the extended fabric tube structure of this utility model;
[0012] In the diagram: 1-base; 2-support shaft tube; 3-support frame; 4-pulley; 5-counterweight groove; 6-first fabric distribution tube; 7-T-shaped counterweight block; 8-lifting ring; 9-DN type rotary joint; 10-extension fabric distribution tube; 11-fabricating hose; 12-U-shaped bracket; 13-groove; 14-sealing ring; 15-limiting end cap; 16-winding reel; 17-fastening bolt; 18-handwheel; 19-wire rope. Detailed Implementation
[0013] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0014] like Figure 1-3As shown, a novel adjustable concrete placing boom includes a base 1. A support shaft tube 2 is welded to the middle of the top of the base 1. A support frame 3 is rotatably connected to the top of the support shaft tube 2. The support frame 3 is equipped with a pulley 4, a counterweight groove 5, and a first placing pipe 6. The pulley 4 is fixed to the middle and rear end of the top of the support frame 3 by a bracket. The counterweight groove 5 is located at the rear end of the support frame 3, and a T-shaped counterweight block 7 is nested in the counterweight groove 5. A lifting ring 8 is pre-embedded in the middle of the top of the T-shaped counterweight block 7. The first placing pipe 6 is fixed inside the support frame 3 by screws. The bottom of the rear end of the first placing pipe 6 extends through and to the bottom of the support shaft tube 2, and a DN-type rotary joint 9 is fixed by screws. An extension placing pipe 10 is nested inside the first placing pipe 6. The extension placing pipe 10 is equipped with a placing hose 11, a U-shaped bracket 12, and a groove. 13. The fabric hose 11 is fixed to the bottom front end of the extension fabric tube 10 by screws. The U-shaped bracket 12 is welded to the top front end of the extension fabric tube 10. The groove 13 is opened at the rear end of the extension fabric tube 10, and a sealing ring 14 is fitted on the groove 13. A limit end cap 15 is fitted at the front end of the sealing ring 14. The limit end cap 15 is fixed to the front end of the first fabric tube 6 by screws. A winding wheel 16 and a fastening bolt 17 are provided on the U-shaped bracket 12. The winding wheel 16 is rotatably connected to the inside of the U-shaped bracket 12, and the main shaft of the winding wheel 16 passes through and extends to the right side of the U-shaped bracket 12. A handwheel 18 is fixed by screws. The fastening bolt 17 is threaded to the left side of the U-shaped bracket 12. A steel wire rope 19 is wound on the winding wheel 16. The end of the steel wire rope 19 passes over the pulley 4 and is fixedly connected to the lifting ring 8.
[0015] Specific usage: Connect the end of the DN-type rotary joint 9 to the concrete conveying pipe with bolts; when it is necessary to extend the extension pipe 10, loosen the fastening bolt 17, and then pull the extension pipe 10 outward along the first pipe 6. At the same time, the winding wheel 16 rotates under the drive of the extension pipe 10, and the rotation of the winding wheel 16 releases the wire rope 19; after the extension pipe 10 has been extended, tighten the fastening bolt 17 to lock the winding wheel 16. At this time, the T-shaped counterweight 7 pulls and supports the extension pipe 10 through the wire rope 19 to prevent the extension pipe 10 from deforming or being damaged during operation.
[0016] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.
Claims
1. A novel adjustable concrete placing boom, comprising a base (1), characterized in that: The base (1) has a support shaft tube (2) welded to the top center. The support shaft tube (2) is rotatably connected to a support frame (3). The support frame (3) is provided with a pulley (4), a counterweight groove (5) and a first fabric tube (6). The pulley (4) is fixed to the top center and rear end of the support frame (3) by a bracket. The counterweight groove (5) is opened at the rear end of the support frame (3), and a T-shaped counterweight block (7) is nested on the counterweight groove (5). A lifting ring (8) is pre-embedded in the top center of the T-shaped counterweight block (7). The first fabric tube (6) is fixed to the inside of the support frame (3) by screws. The bottom of the rear end of the first fabric tube (6) extends through and to the bottom of the support shaft tube (2) by screws to fix a DN-type rotary joint (9).
2. The novel adjustable concrete placing boom according to claim 1, characterized in that: The first fabric tube (6) is nested inside an extension fabric tube (10). The extension fabric tube (10) is provided with a fabric hose (11), a U-shaped bracket (12) and a groove (13). The fabric hose (11) is fixed to the bottom of the front end of the extension fabric tube (10) by screws. The U-shaped bracket (12) is welded to the top of the front end of the extension fabric tube (10). The groove (13) is opened at the rear end of the extension fabric tube (10), and a sealing ring (14) is fitted on the groove (13). A limit end cap (15) is fitted at the front end of the sealing ring (14). The limit end cap (15) is fixed to the front end of the first fabric tube (6) by screws.
3. A novel adjustable concrete placing boom according to claim 2, characterized in that: The U-shaped bracket (12) is provided with a winding wheel (16) and a fastening bolt (17). The winding wheel (16) is rotatably connected inside the U-shaped bracket (12), and the main shaft of the winding wheel (16) passes through and extends to the right side of the U-shaped bracket (12) and is fixed with a handwheel (18) by screws. The fastening bolt (17) is threadedly connected to the left side of the U-shaped bracket (12).
4. A novel adjustable concrete placing boom according to claim 3, characterized in that: A steel wire rope (19) is wound on the reel (16), and the end of the steel wire rope (19) passes over the pulley (4) and is fixedly connected to the lifting ring (8).