Mixer for prestressed concrete pipe pile production
The design of the lifting mechanism and scraping mechanism solved the problem of blockage in the feeding pipe during the production of prestressed concrete pipe piles, achieving smooth material discharge and complete concrete discharge, improving the availability of the device and reducing concrete loss.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-03-24
AI Technical Summary
When using existing raw material mixing devices for prestressed concrete pipe pile production, the mixing of concrete has a certain consistency, which can easily lead to blockage of the discharge pipe during the discharge process, affecting the discharge efficiency of the device and reducing its usability and practicality.
The design incorporates a combination of lifting and scraping mechanisms, including an internal threaded block, a movable rod, a mounting plate, a rotating rod, and a baffle. The baffle controls the material discharge, and a mixing rod and annular scraper are provided to ensure unobstructed discharge and complete concrete removal.
It effectively prevents blockage of the discharge pipe, maintains discharge efficiency, improves the availability and practicality of the device, and reduces concrete waste.
Smart Images

Figure CN224027996U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to concrete pipe pile production technical field especially relates to a kind of mixing machine for prestressed concrete pipe pile production. BACKGROUND
[0002] Chinese patent document CN218019351 U discloses a raw material mixing device for prestressed concrete pipe pile production, which includes a base, a horizontal plate arranged above the base, a shock absorber installed between the horizontal plate and the base, a mixing barrel arranged above the horizontal plate, a first stirring shaft arranged in the mixing barrel, a plurality of groups of first stirring blades symmetrically distributed and fixedly connected to the outer wall of the first stirring shaft, and a second stirring shaft arranged on both sides of the first stirring shaft. The raw materials are poured into the mixing barrel, the output shaft of the motor rotates to drive the first stirring shaft to rotate and in turn drive the first stirring blades to rotate, and at the same time, the rotation of the first stirring shaft drives the second stirring shaft to rotate, so that the second stirring blades mix with the first stirring blades at the same time. The rotation of the second stirring shaft drives the third gear to rotate, so that the mixing barrel rotates, making the raw materials more uniformly mixed. During stirring, the horizontal plate moves downward under the action of gravity to drive the transmission rod to rotate, causing the sliding sleeve to slide, thereby achieving a certain shock-absorbing effect.
[0003] The raw material mixing device for prestressed concrete pipe pile production described above has the problem that when in use, the mixed concrete has a certain consistency, which can easily cause the discharge pipe to be blocked during the discharging process, affecting the discharging efficiency of the device and reducing the usability and practicality of the device. UTILITY MODEL CONTENTS
[0004] The utility model aims to provide a mixing machine for prestressed concrete pipe pile production, which can solve the problem of the raw material mixing device for prestressed concrete pipe pile production described above, which has the problem that when in use, the mixed concrete has a certain consistency, which can easily cause the discharge pipe to be blocked during the discharging process, affecting the discharging efficiency of the device and reducing the usability and practicality of the device.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a mixing machine for prestressed concrete pipe pile production, which includes a mixing box, a lifting mechanism and a scraping mechanism. The lifting mechanism is arranged outside the mixing box and includes an internally threaded block, a movable rod, a mounting plate, a rotating rod and a blocking plug. The top of the internally threaded block is fixedly connected to one end of the movable rod, the other end of the movable rod is fixedly connected to the bottom of the mounting plate, the bottom of the mounting plate is rotationally connected to one end of the rotating rod, and the other end of the rotating rod is rotationally connected to the top of the blocking plug. The scraping mechanism is arranged inside the mixing box and includes a stirring rod. The outer wall of the rotating rod is fixedly installed with a plurality of groups of annularly distributed stirring rods.
[0006] Preferably, the lifting mechanism further comprises a fixed plate, a first motor and a threaded rod, the outer wall of the mixing box is fixedly provided with two groups of fixed plates, the bottom of one group of fixed plates is fixedly provided with a first motor, the adjacent sides of the fixed plate are rotationally connected with the two ends of the threaded rod, the output shaft of the first motor is fixedly connected with one end of the threaded rod, the outer wall of the threaded rod is internally threadedly connected with the internally threaded block, the outer wall of the movable rod is slidably connected with the other group of fixed plates, the discharging is controlled by the material blocking plug control device, and the concrete blocked in the feeding pipe can be extruded through the material blocking plug, so that the feeding pipe is always kept unobstructed, the discharging efficiency of the device is guaranteed, and the availability and practicality of the device are improved.
[0007] Preferably, the material scraping mechanism further comprises an annular scraper, one end of one group of stirring rods is fixedly connected with the inner wall of the annular scraper, the annular scraper is attached to the inner wall of the mixing box but is not connected with the inner wall of the mixing box, the inner wall of the mixing box is scraped, the concrete adhered to the inner wall of the device is scraped off, and the concrete is discharged from the device as much as possible, so that the loss in concrete production is reduced.
[0008] Preferably, the top of the mounting plate is fixedly provided with a second motor, and the output shaft of the second motor is fixedly connected with one end of the rotating rod.
[0009] Preferably, the bottom of the mixing box is fixedly provided with a feeding pipe, the feeding pipe is in communication with the inside of the mixing box, and the outer wall of the material blocking plug is attached to the inner wall of the feeding pipe but is not connected with the inner wall of the feeding pipe.
[0010] Preferably, the bottom of the mixing box is fixedly provided with a plurality of support rods, and one end of each support rod is provided with a shock pad.
[0011] Compared with the prior art, the pre-stressed concrete pipe pile production mixing machine has the advantages that:
[0012] (1) The pre-stressed concrete pipe pile production mixing machine is characterized in that the fixed plate, the first motor, the threaded rod, the internally threaded block, the movable rod, the mounting plate, the rotating rod and the material blocking plug are cooperatively used, the discharging is controlled by the material blocking plug control device, the concrete blocked in the feeding pipe can be extruded through the material blocking plug, the feeding pipe is always kept unobstructed, the discharging efficiency of the device is guaranteed, the availability and practicality of the device are improved.
[0013] (2) The pre-stressed concrete pipe pile production mixing machine is characterized in that the stirring rod and the annular scraper are cooperatively used, the inner wall of the mixing box is scraped, the concrete adhered to the inner wall of the device is scraped off, the concrete is discharged from the device as much as possible, and the loss in concrete production is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0014] The utility model is further illustrated in connection with the drawings and examples as follows:
[0015] Fig. 1 It is a three-dimensional structure schematic view of the utility model.
[0016] Fig. 2 It is the perspective structure schematic view of the utility model;
[0017] Fig. 3 It is the perspective structure schematic view of the utility model's baffle plug.
[0018] The figure mark: 1, the mixing box;2, the lifting mechanism;201, the fixed plate;202, the first motor;203, the threaded rod;204, the internal thread block;205, the movable rod;206, the mounting plate;207, the rotating rod;208, the baffle plug;3, the material scraping mechanism;301, the stirring rod;302, the annular scraper;4, the second motor;5, the discharging pipe;6, the support rod. DETAILED DESCRIPTION
[0019] This part will describe the specific embodiments of the utility model in detail, the preferred embodiment of the utility model is shown in the drawing, the role of the drawing is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.
[0020] Please refer to Figs. 1-3 The utility model provides a kind of technical scheme: a mixer for prestressed concrete pipe pile production, including mixing box 1, lifting mechanism 2 and material scraping mechanism 3, lifting mechanism 2 is set to the outside of mixing box 1, and lifting mechanism 2 includes internal thread block 204, movable rod 205, mounting plate 206, rotating rod 207 and baffle plug 208, the top of internal thread block 204 is fixedly connected with the one end of movable rod 205, the other end of movable rod 205 is fixedly connected with the bottom of mounting plate 206, the bottom of mounting plate 206 is rotatably connected with the one end of rotating rod 207, the other end of rotating rod 207 is rotatably connected with the top of baffle plug 208;Material scraping mechanism 3 is set to the inside of mixing box 1, and material scraping mechanism 3 includes stirring rod 301, and the outer wall of rotating rod 207 is fixedly installed with multiple groups of annular distribution stirring rod 301;The top of mounting plate 206 is fixedly installed with second motor 4, and the output shaft of second motor 4 is fixedly connected with the one end of rotating rod 207;The bottom of mixing box 1 is fixedly installed with discharging pipe 5, and discharging pipe 5 is connected with the inside of mixing box 1, and the outer wall of baffle plug 208 is attached to the inner wall of discharging pipe 5 but not connected;The bottom of mixing box 1 is fixedly installed with multiple groups of support rod 6, and one end of support rod 6 is provided with shock pad.
[0021] Secondly, the lifting mechanism 2 further comprises a fixed plate 201, a first motor 202 and a threaded rod 203, two groups of fixed plates 201 are fixedly installed on the outer wall of the mixing box 1, the bottom of one group of fixed plates 201 is fixedly installed with the first motor 202, the adjacent sides of the fixed plate 201 are rotationally connected with the two ends of the threaded rod 203, the output shaft of the first motor 202 is fixedly connected with one end of the threaded rod 203, the outer wall of the threaded rod 203 is internally threadedly connected with the inner threaded block 204, the outer wall of the movable rod 205 is internally slidably connected with the other group of fixed plates 201, the discharging is controlled by the stopper plug 208 control device, and the stopper plug 208 can also extrude the concrete blocked in the downpipe 5, so that the downpipe 5 is always kept unobstructed, the discharging efficiency of the device is ensured, and the usability and practicality of the device are improved.
[0022] Further, the scraping mechanism 3 further comprises an annular scraper 302, one end of one group of stirring rods 301 is fixedly connected with the inner wall of the annular scraper 302, the annular scraper 302 is attached to the inner wall of the mixing box 1 but is not connected, the inner wall of the mixing box 1 is scraped, the concrete adhered to the inner wall of the device is scraped off, and the concrete is discharged from the device as much as possible, so that the loss in the production of concrete is reduced.
[0023] Working principle: in use, the production raw materials of the concrete pipe pile are poured into the mixing box 1, the second motor 4 is started to drive the rotating rod 207 to rotate, the stirring rod 301 is driven to stir the concrete raw materials, after mixing, the first motor 202 is started to drive the threaded rod 203 to rotate, under the limiting of the movable rod 205, the inner threaded block 204 is driven to move on the threaded rod 203, the mounting plate 206 is driven to move upwards, and then the stopper plug 208 is moved out of the downpipe 5, so that the concrete raw materials in the mixing box 1 can be discharged through the downpipe 5, when the downpipe 5 is blocked, the stopper plug 208 is moved downwards to extrude the raw materials blocked in the downpipe 5, through the upward and downward movement of the mounting plate 206, the annular scraper 302 is driven to move on the inner wall of the mixing box 1, and the concrete adhered in the device is scraped off.
[0024] The above describes the embodiments of the utility model in detail in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by ordinary skilled persons in the technical field without departing from the purpose of the utility model.
Claims
1. A mixing machine for producing prestressed concrete pipe piles, characterized in that, include: Mixing box (1); The lifting mechanism (2) is located outside the mixing box (1). The lifting mechanism (2) includes an internal thread block (204), a movable rod (205), a mounting plate (206), a rotating rod (207), and a baffle (208). The top of the internal thread block (204) is fixedly connected to one end of the movable rod (205), the other end of the movable rod (205) is fixedly connected to the bottom of the mounting plate (206), the bottom of the mounting plate (206) is rotatably connected to one end of the rotating rod (207), and the other end of the rotating rod (207) is rotatably connected to the top of the baffle (208). The scraping mechanism (3) is located inside the mixing box (1). The scraping mechanism (3) includes a stirring rod (301). Multiple sets of ring-shaped stirring rods (301) are fixedly installed on the outer wall of the rotating rod (207).
2. The mixing machine for producing prestressed concrete pipe piles according to claim 1, characterized in that: The lifting mechanism (2) also includes a fixed plate (201), a first motor (202) and a threaded rod (203). Two sets of fixed plates (201) are fixedly installed on the outer wall of the mixing box (1). The first motor (202) is fixedly installed at the bottom of one set of fixed plates (201). The adjacent sides of the fixed plate (201) are rotatably connected to both ends of the threaded rod (203). The output shaft of the first motor (202) is fixedly connected to one end of the threaded rod (203). The outer wall of the threaded rod (203) is threadedly connected to the inner thread of the inner threaded block (204). The outer wall of the movable rod (205) is slidably connected to the inner part of the other set of fixed plates (201).
3. A mixing machine for producing prestressed concrete pipe piles according to claim 2, characterized in that: The scraping mechanism (3) also includes an annular scraper (302), one end of a set of stirring rods (301) is fixedly connected to the inner wall of the annular scraper (302), and the annular scraper (302) is in contact with but not connected to the inner wall of the mixing box (1).
4. A mixing machine for producing prestressed concrete pipe piles according to claim 3, characterized in that: The second motor (4) is fixedly installed on the top of the mounting plate (206), and the output shaft of the second motor (4) is fixedly connected to one end of the rotating rod (207).
5. A mixing machine for producing prestressed concrete pipe piles according to claim 4, characterized in that: The bottom of the mixing box (1) is fixedly installed with a discharge pipe (5), which is connected to the inside of the mixing box (1). The outer wall of the baffle plug (208) is in contact with the inner wall of the discharge pipe (5) but not connected.
6. A mixing machine for producing prestressed concrete pipe piles according to claim 5, characterized in that: Multiple sets of support rods (6) are fixedly installed at the bottom of the mixing box (1), and a shock-absorbing pad is provided at one end of the support rod (6).
Citation Information
Patent Citations
Raw material mixing device for prestressed concrete pipe pile production
CN218019351U