A concrete mixing and conveying device with a locking mechanism

Abstract

This utility model relates to a mixing device, specifically a concrete mixing and conveying device with a locking mechanism, to solve the technical problem that existing mixing and conveying devices are prone to shaking during operation due to their large size and heavy weight, posing a safety hazard. This utility model includes a mixing and conveying device, a swinging and tilting mechanism, and a locking mechanism. The locking mechanism includes a fixed frame, a locking cylinder, a rotary arm, a swing arm, a pair of locking hooks, and a pair of connecting plates. The front end of the fixed frame is connected to the body of the concrete mixer truck, and the rear end is provided with a pair of slots. The pair of connecting plates are fixed to both sides of the mixing and conveying device, and each has a pin fixed to its front. Both ends of the rotary arm are rotatably connected to the fixed frame. The front ends of the pair of locking hooks are fixed to the rotary arm, and the rear ends are provided with hooks. One end of the swing arm is fixed to the middle of the rotary arm. The cylinder body of the locking cylinder is hinged to the front end of the fixed frame, and the output end is hinged to the other end of the swing arm.

Description

Technical Field

[0001] This utility model relates to a mixing device, specifically a concrete mixing and conveying device with a locking mechanism. Background Technology

[0002] A concrete mixer truck is a mobile, continuous concrete mixing equipment. The equipment feeds materials into a mixing and conveying device, and after mixing is completed, it unloads the materials through the mixing and conveying device. It is suitable for concrete mixing under various working conditions, such as concrete mixing in urban traffic maintenance processes, where the demand is high frequency and small quantities.

[0003] Existing mixing and conveying devices typically include a mixing conveyor and a swinging and tilting mechanism. During construction, the swinging and tilting mechanism drives the mixing conveyor to tilt up and down to adjust the construction angle and swing left and right to adjust the construction range for construction operations. However, due to the large size and heavy weight of the mixing conveyor, it is prone to shaking during operation, posing a safety hazard. Utility Model Content

[0004] The purpose of this invention is to solve the technical problem that existing concrete mixing and conveying devices are prone to shaking during operation due to their large size and heavy weight, posing a safety hazard. The invention provides a concrete mixing and conveying device with a locking mechanism.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A concrete mixing and conveying device with a locking mechanism includes a mixing conveyor and a swinging and tilting mechanism, wherein the mixing conveyor is connected to the body of a concrete mixer truck via the swinging and tilting mechanism; its special feature is that:

[0007] It also includes a locking mechanism, which comprises a fixed frame, a locking cylinder, a rotary arm, a swing arm, a pair of locking hooks, and a pair of connecting plates;

[0008] The front end of the mounting bracket is connected to the body of the concrete mixer truck, and the rear end is equipped with a pair of slots.

[0009] A pair of connecting plates are fixedly connected to both sides of the mixing conveyor. A pin is fixedly connected to the front of each pair of connecting plates. The pins are used to engage with the corresponding slots when the mixing conveyor is in the retracted state.

[0010] Both ends of the slewing arm are rotatably connected to the fixed frame;

[0011] The front ends of a pair of locking hooks are fixedly connected to the rotating arm, and the rear ends are provided with hooks that can hook and lock the corresponding pins.

[0012] One end of the swing arm is fixedly connected to the middle of the rotary arm;

[0013] The cylinder body of the locking cylinder is hinged to the front end of the fixed frame, and the output end is hinged to the other end of the swing arm.

[0014] Furthermore, the mounting bracket has a mounting part and a pair of extension arms fixedly connected to the rear side of the mounting part. The pair of extension arms are spaced apart at both ends of the mounting part. The mounting part is fixedly connected to the vehicle body. Each of the two extension arms has a slot at its rear end.

[0015] The two ends of the slewing arm are respectively rotatably connected to the middle of a pair of extension arms;

[0016] The cylinder body of the locking cylinder is hinged to the middle of the mounting section.

[0017] Furthermore, a pair of locking hooks are symmetrically arranged on both sides of the swing arm, and the pair of locking hooks are respectively located close to the inner sidewall of the pair of extended arms.

[0018] Furthermore, the slewing arm and a pair of locking hooks are integrally formed;

[0019] Each locking hook is reinforced at the connection point with the slewing arm.

[0020] Furthermore, the swing arm includes a pair of plate-shaped portions integrally formed with the rotary arm, one end of each pair of plate-shaped portions being connected to the rotary arm, and the output end of the locking cylinder being hinged between the other ends of the pair of plate-shaped portions.

[0021] Furthermore, the mounting section has an integrally formed square tube and mounting plate, the square tube is fixedly connected to the vehicle body, and the cylinder body of the locking cylinder is hinged to the middle of the upper part of the square tube;

[0022] A pair of symmetrically arranged extension arms;

[0023] The extension arm has an integrally formed fixed plate and an extension plate. The fixed plate is perpendicular to the extension plate, and the connection between the fixed plate and the extension plate extends from the front part of the extension plate to the middle part. The front parts of both the fixed plate and the extension plate are fixedly connected to the mounting plate. The two ends of the rotary arm are rotatably connected to the middle part of a pair of extension plates respectively. Each extension plate has a slot at its rear end.

[0024] Furthermore, the fixing frame is positioned above the swing cylinder of the swing tilting mechanism;

[0025] A pair of connecting plates are fixedly connected to the upper two sides of the mixing conveyor and are symmetrically arranged on both sides of the tilting cylinder of the swing tilting mechanism.

[0026] The advantages of this utility model compared to the prior art are:

[0027] This utility model discloses a concrete mixing and conveying device with a locking mechanism. During non-working hours, the pins at the front of a pair of connecting plates are respectively engaged in corresponding slots. The output end of the locking cylinder, through a swing arm and a rotary arm, causes the hooks of a pair of locking hooks to tightly lock the corresponding pins, thereby locking the mixing conveyor. This effectively prevents the mixing conveyor from shaking during operation, improving the stability and safety of the mixing and conveying device. Attached Figure Description

[0028] Figure 1 This is a structural schematic diagram of an embodiment of a concrete mixing and conveying device with a locking mechanism according to the present invention;

[0029] Figure 2 This is a three-dimensional structural diagram of the locking mechanism in the locked state in an embodiment of a concrete mixing and conveying device with a locking mechanism according to the present invention.

[0030] Figure 3 This is a three-dimensional structural diagram of the locking mechanism in the disengaged state in an embodiment of a concrete mixing and conveying device with a locking mechanism according to the present invention.

[0031] The annotations in the attached figures are explained as follows:

[0032] 1-Mixing conveyor, 2-Swing and tilting mechanism, 21-Swing cylinder, 22-Tilting cylinder, 23-Moving arm, 24-Connecting arm, 25-Rotating body, 26-Moving frame, 3-Car body, 4-Fixed frame, 41-Mounting part, 411-Square tube, 412-Mounting plate, 42-Extension arm, 421-Fixed plate, 422-Extension plate, 4221-Slot, 5-Locking cylinder, 6-Rotating arm, 7-Swing arm, 8-Locking hook, 9-Connecting plate, 91-Pin. Detailed Implementation

[0033] To make the objectives, advantages and features of this utility model clearer, the following describes in further detail a concrete mixing and conveying device with a locking mechanism proposed by this utility model in conjunction with the accompanying drawings and specific embodiments.

[0034] Reference Figure 1 The present invention relates to a concrete mixing and conveying device with a locking mechanism, comprising a mixing conveyor 1, a swinging and turning mechanism 2, and a locking mechanism.

[0035] The mixing conveyor 1 is connected to the concrete mixer truck body 3 via a swinging and tilting mechanism 2. The swinging and tilting mechanism 2 includes a swing cylinder 21, a tilting cylinder 22, a movable arm 23, a connecting arm 24, a rotating body 25, a movable frame 26, an upper support, and a lower support. The upper support is fixedly connected to the middle of the rear side of the truck body 3. The cylinder body of the swing cylinder 21 is fixedly mounted on the upper support. The upper and lower ends of the movable frame 26 are respectively connected to the central axis of the swing cylinder 21. The lower end of the connecting arm 24 is hinged to the upper end of the movable frame 26, and the cylinder body of the tilting cylinder 22 is hinged to the lower end of the movable frame 26. The connecting arm 24... The upper end of the mixing conveyor 1, the output end of the tilting cylinder 22, and the upper end of the movable arm 23 are hinged at the same point. The lower end of the movable arm 23 is hinged to the middle of the mixing conveyor 1. The lower bracket is fixedly connected to the lower part of the rear side of the vehicle body 3. The rotating body 25 is connected to the lower bracket through a slewing bearing. The central axis of the rotating body 25 is coaxial with the central axis of the swinging cylinder 21. The lower end of the mixing conveyor 1 is hinged to the rotating body 25, and the central axis of the hinge axis between the mixing conveyor 1 and the rotating body 25 is perpendicular to the central axis of the rotating body 25. Under the drive of the swinging cylinder 21, the mixing conveyor 1 can swing left and right, with a swing angle of 0° to 160°. Under the drive of the tilting cylinder 22, the mixing conveyor 1 can tilt up and down, with a tilt angle of 1° to 75°.

[0036] like Figure 1 , Figure 2 and Figure 3 As shown, the locking mechanism includes a fixed frame 4, a locking cylinder 5, a rotary arm 6, a swing arm 7, a pair of locking hooks 8, and a pair of connecting plates 9.

[0037] A pair of connecting plates 9 are fixedly connected to the upper two sides of the mixing conveyor 1, and the pair of connecting plates 9 are symmetrically arranged on both sides of the tilting cylinder 22. The front of each pair of connecting plates 9 is fixedly connected with a pin 91.

[0038] The mounting bracket 4 is positioned above the swing cylinder 21. The mounting bracket 4 has a mounting portion 41 and a pair of extension arms 42 fixedly connected to the rear side of the mounting portion 41. The mounting portion 41 has an integrally formed square tube 411 and a mounting plate 412. The square tube 411 is fixedly connected to the upper rear side of the vehicle body 3. The cylinder body of the locking cylinder 5 is hinged to the middle part above the square tube 411. The square tube 411 makes the connection between the mounting bracket 4 and the vehicle body 3 and the locking cylinder 5 more convenient and reliable. The pair of extension arms 42 are spaced apart at both ends of the mounting portion 41 and are symmetrical. The extension arm 42 is configured with an integrally formed fixing plate 421 and an extension plate 422. The fixing plate 421 is perpendicular to the extension plate 422, and the connection between the fixing plate 421 and the extension plate 422 extends from the front part of the extension plate 422 to the middle part. The connection between the fixing plate 421 and the extension plate 422 extends to the middle part of the extension plate 422, which can improve the structural strength of the extension arm 42. The front parts of the fixing plate 421 and the extension plate 422 are fixedly connected to the mounting plate 412 by bolts and nuts. Each extension plate 422 has a slot 4221 at its rear end.

[0039] Both ends of the rotary arm 6 are rotatably connected to the middle of a pair of extension plates 422. One end of the swing arm 7 is fixedly connected to the middle of the rotary arm 6, and the output end of the locking cylinder 5 is hinged to the other end of the swing arm 7. Preferably, the swing arm 7 includes a pair of plate-shaped parts integrally formed with the rotary arm 6, one end of each pair of plate-shaped parts is connected to the rotary arm 6, and the output end of the locking cylinder 5 is hinged between the other ends of the pair of plate-shaped parts.

[0040] The rotating arm 6 and a pair of locking hooks 8 are integrally formed. The front ends of the pair of locking hooks 8 are fixedly connected to the rotating arm 6, and the pair of locking hooks 8 are symmetrically arranged on both sides of the swing arm 7. The pair of locking hooks 8 are respectively located near the inner sidewall of the extension plate 422 of the pair of extension arm parts 42. The rear ends of the pair of locking hooks 8 are provided with hooks that can hook and lock the corresponding pins 91. To increase structural strength, a reinforcing rib is provided at the connection between each locking hook 8 and the rotating arm 6.

[0041] During non-working hours, the mixing conveyor 1 is in the following state: Figure 1In the retracted state shown, the pins 91 at the front of the pair of connecting plates 9 are respectively engaged in the corresponding slots 4221. The output end of the locking cylinder 5 extends to, through the swing arm 7 and the rotating arm 6, tightly lock the hooks of the pair of locking hooks 8 onto the corresponding pins 91, thereby locking the mixer conveyor 1. This effectively prevents the mixer conveyor 1 from shaking during operation, improving the stability and safety of the mixing and conveying device. During operation, the output end of the locking cylinder 5 retracts, disengaging the pair of locking hooks 8. The tilting cylinder 22 drives the mixer conveyor 1 to tilt downwards, causing the pair of pins 91 to disengage from the corresponding slots 4221. The mixer conveyor 1 can then tilt up and down and swing left and right under the drive of the tilting mechanism 2 for construction operations. In addition, this utility model of a concrete mixing and conveying device with a locking mechanism uses hydraulic control, making operation time-saving and labor-saving.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the specific technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of this utility model.

Claims

1. A concrete mixing and conveying device with a locking mechanism, comprising a mixing conveyor (1) and a swinging and tilting mechanism (2), wherein the mixing conveyor (1) is connected to the body (3) of a concrete mixer truck via the swinging and tilting mechanism (2); characterized in that: It also includes a locking mechanism, which includes a fixed frame (4), a locking cylinder (5), a rotary arm (6), a swing arm (7), a pair of locking hooks (8) and a pair of connecting plates (9); The front end of the fixing frame (4) is connected to the body (3) of the concrete mixer truck, and a pair of slots (4221) are provided at the rear end. A pair of connecting plates (9) are fixedly connected to both sides of the mixing conveyor (1). A pin (91) is fixedly connected to the front of each pair of connecting plates (9). The pin (91) is used to be inserted into the corresponding slot (4221) when the mixing conveyor (1) is in the retracted state. Both ends of the rotary arm (6) are rotatably connected to the fixed frame (4); The front ends of each pair of locking hooks (8) are fixedly connected to the rotating arm (6), and the rear ends are provided with hooks that can hook and lock the corresponding pins (91); One end of the swing arm (7) is fixedly connected to the middle of the rotary arm (6); The cylinder body of the locking cylinder (5) is hinged to the front end of the fixed frame (4), and the output end is hinged to the other end of the swing arm (7).

2. The concrete mixing and conveying device with locking mechanism according to claim 1, characterized in that: The mounting bracket (4) has a mounting part (41) and a pair of extension arms (42) fixedly connected to the rear side of the mounting part (41). The pair of extension arms (42) are spaced apart at both ends of the mounting part (41). The mounting part (41) is fixedly connected to the vehicle body (3). Each of the two extension arms (42) has a slot (4221) at its rear end. The two ends of the rotary arm (6) are respectively rotatably connected to the middle of a pair of extension arms (42); The cylinder body of the locking cylinder (5) is hinged to the middle of the mounting part (41).

3. The concrete mixing and conveying device with locking mechanism according to claim 2, characterized in that: A pair of locking hooks (8) are symmetrically arranged on both sides of the swing arm (7), and the pair of locking hooks (8) are respectively arranged close to the inner sidewall of the pair of extended arms (42).

4. The concrete mixing and conveying device with locking mechanism according to claim 3, characterized in that: The rotating arm (6) and the pair of locking hooks (8) are integrally formed; Each locking hook (8) is provided with a reinforcing rib at the connection between it and the rotating arm (6).

5. The concrete mixing and conveying device with locking mechanism according to claim 4, characterized in that: The swing arm (7) includes a pair of plate-shaped parts integrally formed with the rotary arm (6). One end of each pair of plate-shaped parts is connected to the rotary arm (6), and the output end of the locking cylinder (5) is hinged between the other ends of the pair of plate-shaped parts.

6. The concrete mixing and conveying device with locking mechanism according to claim 2, characterized in that: The mounting part (41) has an integrally formed square tube (411) and a mounting plate (412). The square tube (411) is fixedly connected to the vehicle body (3), and the cylinder body of the locking cylinder (5) is hinged to the middle part above the square tube (411). The pair of extended arms (42) are symmetrically arranged; The extension arm (42) has an integrally formed fixed plate (421) and extension plate (422). The fixed plate (421) is perpendicular to the extension plate (422), and the connection between the fixed plate (421) and the extension plate (422) extends from the front part of the extension plate (422) to the middle part. The front parts of the fixed plate (421) and the extension plate (422) are fixedly connected to the mounting plate (412). The two ends of the rotary arm (6) are rotatably connected to the middle part of a pair of extension plates (422), and each extension plate (422) has a slot (4221) at its rear end.

7. The concrete mixing and conveying device with locking mechanism according to claim 2, characterized in that: The fixed frame (4) is positioned above the swing cylinder (21) of the swing flipping mechanism (2); A pair of connecting plates (9) are fixedly connected to the upper two sides of the mixing conveyor (1) and symmetrically arranged on both sides of the tilting cylinder (22) of the swing tilting mechanism (2).

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