Forced concrete mixer with single horizontal shaft

Abstract

The utility model discloses a single horizontal shaft forced concrete mixer which comprises a support, a mixing drum with an opening in the upper portion and a driving assembly, two supports are fixedly connected to the support, the mixing drum is rotatably installed between the two supports, a mixing assembly is arranged in the mixing drum, and a mixing shaft of the mixing assembly and the mixing drum are coaxially arranged. One end of the stirring shaft extends out of the stirring barrel to be in transmission connection with the driving assembly, the outer wall of one end of the stirring barrel is rotationally connected with a grip, a first groove matched with the grip is formed in the set of supports, and when the grip rotates to be matched with the first groove, the stirring barrel is limited by the grip and cannot rotate; according to the stirring machine provided by the utility model, the grip is rotationally connected with the stirring barrel, and the first groove matched with the grip is formed, so that the stirring barrel is rotated and locked through the grip, and the stirring machine is convenient to operate and can be operated by a single person.

Description

Technical Field

[0001] The utility model relates to the technical field of mixing equipment, in particular to a single-horizontal-shaft forced concrete mixer. Background Art

[0002] The single-horizontal-shaft concrete mixer uses a rotating mixing device to perform forced mixing actions such as shearing, squeezing, tumbling and throwing on the materials, so that the materials are evenly mixed in the violent relative movement. Compared with the self-falling mixer, the mixing time is short and the mixing efficiency is high.

[0003] For example, the patent with publication number CN207415685U discloses a single-horizontal-shaft concrete mixer, which belongs to the field of construction equipment and solves the problem of inconvenient cleaning of concrete residues after use of traditional single-horizontal-shaft concrete mixers. The key points of its technical solution are: it includes a frame, a mixing drum installed on the frame for mixing concrete raw materials, a driving box installed on the frame for driving the mixing drum, and a controller electrically connected to the driving box, a water tank is arranged on the upper end surface of the driving box, and a water outlet pipe connected to the inner cavity of the water tank and with a valve is arranged on the water tank; a water trough is opened on the side wall of the mixing drum and a plurality of water outlets connected to the water trough are opened on the inner wall of the mixing drum, the water trough is connected to the water outlet pipe, and the utility model has the characteristic of easy cleaning.

[0004] In the process of unloading after mixing, the existing mixer needs to first step on the pedal to remove the restriction of the mixing drum by the latch, and then rotate the mixing drum by the handle. When stepping on the pedal, the mixing drum needs to be stabilized, and when stepping on the pedal, only one foot can touch the ground, which is not easy to maintain stability, and is therefore not convenient for single-person operation. Utility Model Content

[0005] The utility model aims to provide a mixer which is convenient for single-person operation.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A single-horizontal shaft forced concrete mixer comprises a support, a mixing drum with an opening on the top and a driving assembly. Two brackets are fixedly connected to the support. The mixing drum is rotatably installed between the two brackets. A mixing assembly is arranged in the mixing drum. The mixing shaft of the mixing assembly is coaxially arranged with the mixing drum, and one end of the mixing shaft extends to the outside of the mixing drum and is transmission-connected to the driving assembly. A handle is rotatably connected to the outer wall of one end of the mixing drum. A first groove that matches the handle is arranged on a group of brackets. When the handle is rotated to match the first groove, the mixing drum cannot rotate due to the restriction of the handle.

[0008] In the above mixer, the outer wall of the mixing drum is fixedly connected with a mounting seat, the end of the handle is rotatably connected to the mounting seat through a mounting shaft, and the first groove is vertically opened at the upper end of the corresponding bracket.

[0009] The above-mentioned mixer, the bracket includes a first bracket and a second bracket, the first groove is opened at the upper end of the first bracket, the driving assembly is arranged on the side of the second bracket away from the mixing drum, the mixing drum is rotatably connected to the first bracket through the first rotating shaft, and the handle is installed on the side of the mixing drum corresponding to the first bracket.

[0010] In the above-mentioned mixer, a support rod is installed in the middle of the first bracket, the support rod is arranged along the radial direction of the first rotating shaft, and the end of the support rod is lower than the height of the central axis of the first rotating shaft. A second groove is opened along the length direction of the support rod at one end of the support rod away from the first bracket. When the mixing drum is rotated to the unloading angle, the handle can be rotated to cooperate with the second groove.

[0011] In the above mixer, a cover plate is arranged at the opening of the mixing drum, and the cover plate completely covers the opening.

[0012] In the above mixer, the cover plate is rotatably connected to the mixing drum via the second rotating shaft. A locking assembly is also provided on the mixing drum. The mounting shaft is transmission-connected to the locking assembly. When the handle is rotated to cooperate with the first groove, the locking assembly is driven to lock the second rotating shaft.

[0013] The above-mentioned mixer, the locking assembly includes a pressure plate arranged parallel to the end face of the mixing drum, a support block is fixedly connected to the upper part of the mixing drum, a limiting shaft arranged parallel to the first rotating shaft is fixedly connected to the pressure plate, the limiting shaft and the second rotating shaft are coaxially arranged, the part of the limiting shaft between the pressure plate and the support block is provided with a spring, and one end of the limiting shaft corresponding to the second rotating shaft has a groove along its own circumferential array, and the end of the second rotating shaft is provided with a clamping groove matching the limiting shaft.

[0014] In the above mixer, a cam is coaxially arranged on the mounting shaft. When the handle is rotated to match with the first groove, the cam pushes the pressure plate toward the end of the mixing drum.

[0015] In the above-mentioned mixer, a baffle rod is provided at the opening of the first groove on the first bracket and at the opening of the second groove on the support rod. Each baffle rod is rotatably connected to the first bracket and the second bracket respectively through a connecting shaft. A first torsion spring is sleeved on the connecting shaft. The first torsion spring keeps the corresponding baffle rod covering the opening of the first groove or the second groove, and the baffle rod can only rotate toward the inside of the first groove or the second groove.

[0016] The mixer has a second torsion spring mounted on the mounting shaft, and the second torsion spring drives the handle to rotate to an angle parallel to the first bracket.

[0017] In the above technical scheme, the mixer provided by the utility model is connected by rotation of the handle and the mixing drum. When the mixing of the material is completed, the handle is moved out of the first groove by rotating the handle, and the angle restriction on the mixing drum is cancelled, so that the mixing drum can be rotated. With this arrangement, the rotation and locking of the mixing drum are both achieved through the handle. When unloading is required, only one hand is required to hold the mixing drum, and the other hand is required to rotate the handle to cancel the restriction on the mixing drum, and then the mixing drum is rotated to the unloading angle through the handle. The operation is convenient and only one person is required to operate it. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the front structure provided for an embodiment of the utility model;

[0020] Figure 2 A schematic diagram of the interior of a mixing drum provided by an embodiment of the utility model;

[0021] Figure 3 A left side view provided for an embodiment of the utility model;

[0022] Figure 4 The embodiment of the utility model provides Figure 1 The enlarged schematic diagram at A in the middle;

[0023] Figure 5 An enlarged schematic diagram of the upper end of the first bracket provided in an embodiment of the utility model;

[0024] Figure 6 This is a structural view of the end portion of the limiting shaft provided in an embodiment of the utility model.

[0025] Description of reference numerals:

[0026] 1. Support; 11. First bracket; 111. Support rod; 112. First groove; 113. Second groove; 12. Second bracket; 2. Mixing drum; 21. First rotating shaft; 22. Cover plate; 221. Second rotating shaft; 23. Handle; 231. Mounting seat; 232. Mounting shaft; 233. Cam; 3. Locking assembly; 31. Pressing plate; 32. Support block; 33. Limiting shaft; 331. Groove; 34. Spring; 4. Driving assembly; 41. Mixing shaft; 5. Stop rod. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] In the description of the present utility model, unless otherwise specified, "multiple" means two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] like Figure 1-6 As shown, a single-horizontal-shaft forced concrete mixer provided by an embodiment of the utility model comprises a support 1, a mixing drum 2 with an opening on the upper portion and a driving assembly 4, two brackets are fixedly connected to the support 1, the mixing drum 2 is rotatably installed between the two brackets, a mixing assembly is arranged in the mixing drum 2, a mixing shaft 41 of the mixing assembly is coaxially arranged with the mixing drum 2, and one end of the mixing shaft 41 extends to the outside of the mixing drum 2 and is transmission-connected to the driving assembly 4, a handle 23 is rotatably connected to the outer wall of one end of the mixing drum 2, a first groove 112 matching the handle 23 is arranged on a group of brackets, and when the handle 23 is rotated to match with the first groove 112, the mixing drum 2 is restricted by the handle 23 and cannot rotate.

[0030] Specifically, the support 1 is a supporting structure of the mixer, which is used to provide stable support for other structures of the mixer. The bracket is a supporting structure of the mixing drum 2, which is used to support the mixing drum 2 to a certain height, so that a certain gap is left between the mixing drum 2 and the support 1, so as to facilitate the rotation of the mixing drum 2 to adjust the position of the opening to tilt downward and discharge the mixed materials inside. The stirring assembly is an existing stirring structure. Optionally, the outer wall of the stirring shaft 41 has stirring blades arranged in a circumferential array at equal intervals, such as Figure 2As shown, the drive assembly 4 is an existing drive structure and can be directly applied without further elaboration. It should be noted that the mixing drum 2 has at least two staying angles, one of which is the angle of the mixing drum 2 during mixing, and the opening of the mixing drum 2 is facing upward, and the other is the angle of the mixing drum 2 during unloading, and the opening of the mixing drum 2 is tilted downward. When the mixing drum 2 is at the mixing angle, the handle 23 can be rotated to make the handle 23 stuck in the first groove 112 to cooperate with the first groove 112. The first groove 112 restricts the handle 23 to prevent the mixing drum 2 from rotating. Optionally, the handle 23 can be rotated to be perpendicular to the central axis of the mixing drum 2. This arrangement makes it easy to use the handle 23 to drive the mixing drum 2 to rotate, thereby rotating the mixing drum 2 from the mixing angle to the unloading angle.

[0031] In this embodiment, the handle 23 is rotatably connected to the mixing drum 2. When the mixing of the material is completed, the handle 23 is rotated to move the handle 23 out of the first groove 112, thereby canceling the angle restriction on the mixing drum 2 and allowing the mixing drum 2 to rotate. In this way, the rotation and locking of the mixing drum 2 are both achieved through the handle 23. When unloading is required, only one hand is required to hold the mixing drum 2, and the other hand is required to rotate the handle 23 to cancel the restriction on the mixing drum 2, and then the mixing drum 2 is rotated to the unloading angle through the handle 23. The operation is convenient and can be operated by only one person.

[0032] Furthermore, a mounting seat 231 is fixedly connected to the outer wall of the mixing drum 2, and the end of the handle 23 is rotatably connected to the mounting seat 231 via a mounting shaft 232. The first groove 112 is vertically opened at the upper end of the corresponding bracket.

[0033] Furthermore, the bracket includes a first bracket 11 and a second bracket 12, the first groove 112 is opened at the upper end of the first bracket 11, the driving assembly 4 is arranged on the side of the second bracket 12 away from the mixing drum 2, the mixing drum 2 is rotatably connected to the first bracket 11 through the first rotating shaft 21, and the handle 23 is installed on the side of the mixing drum 2 corresponding to the first bracket 11.

[0034] Specifically, by arranging the handle 23 and the driving assembly 4 at the two ends of the mixing drum 2 respectively, there is enough space for the handle 23 to rotate, so that the handle 23 can be rotated to remove the restriction on the mixing drum 2, and the handle 23 will not be interfered by the driving assembly 4 when rotating, which is more convenient to operate.

[0035] Furthermore, a support rod 111 is installed in the middle of the first bracket 11, and the support rod 111 is arranged along the radial direction of the first rotating shaft 21, and the end of the support rod 111 is lower than the height of the central axis of the first rotating shaft 21. A second groove 113 is opened along its own length direction at one end of the support rod 111 away from the first bracket 11. When the mixing drum 2 is rotated to the unloading angle, the handle 23 can be rotated to cooperate with the second groove 113.

[0036] Specifically, by arranging a support rod 111 on the first bracket 11, and opening a second groove 113 on the support rod 111, when the mixing drum 2 is rotated to the unloading angle by the handle 23, the handle 23 is rotated again, so that the handle 23 rotates about the axis of the mounting shaft 232, until the handle 23 is snapped into the second groove 113, and the mixing drum 2 is restricted again, so that the mixing drum 2 is always at the unloading angle. When unloading, if the mixing drum 2 has a tendency to rotate in the opposite direction, that is, if the mixing drum 2 is not held, the mixing drum 2 will Reverse rotation. At this time, since the handle 23 is in the second groove 113, the tendency of the mixing drum 2 to rotate in the opposite direction will cause the handle 23 to be tightly attached to the inner wall of the second groove 113, thereby restricting the mixing drum 2, and the handle cannot rotate about the axis of the mounting shaft 232 under the action of gravity. Optionally, an elastic rubber block may be provided on the inner wall of the second groove 113, so that after the handle 23 is rotated into the second groove 113, it cannot be rotated out of the second groove 113 without applying a certain external force, so as to ensure that the handle 23 restricts the mixing drum 2 to the unloading angle.

[0037] Furthermore, a cover plate 22 is provided at the opening of the mixing drum 2, and the cover plate 22 completely covers the opening.

[0038] Furthermore, the cover plate 22 is rotationally connected to the mixing drum 2 via the second rotating shaft 221. A locking assembly 3 is also provided on the mixing drum 2. The mounting shaft 232 is transmission-connected to the locking assembly 3. When the handle 23 is rotated to cooperate with the first groove 112, the locking assembly 3 is driven to lock the second rotating shaft 221.

[0039] Specifically, the cover plate 22 is rotatably connected to the mixing drum 2. Optionally, the second rotating shaft 221 is disposed on a side of the mixing drum 2 away from the support rod 111. Figure 3 As shown, with such an arrangement, when unloading, the cover plate 22 can be flipped upward, that is, when the cover plate 22 is opened, the position relative to the opening of the mixing drum 2 is not on the side of the mixing drum 2 opening for discharging materials, and will not interfere with the discharging of materials. Moreover, when the material in the mixing drum 2 is discharged outwardly, the cover plate 22 can be locked at the opening angle by the locking assembly 3.

[0040] Furthermore, the locking assembly 3 includes a pressure plate 31 arranged parallel to the end face of the mixing drum 2, a support block 32 is fixedly connected to the upper part of the mixing drum 2, a limiting shaft 33 arranged parallel to the first rotating shaft 21 is fixedly connected to the pressure plate 31, the limiting shaft 33 is coaxially arranged with the second rotating shaft 221, a portion of the limiting shaft 33 between the pressure plate 31 and the support block 32 is provided with a spring 34, and one end of the limiting shaft 33 corresponding to the second rotating shaft 221 has a groove 331 along its own circumferential array, and the end of the second rotating shaft 221 is provided with a clamping groove matching the limiting shaft 33.

[0041] Specifically, by setting a pressure plate 31 parallel to each other at the end of the mixing drum 2, when the pressure plate 31 moves toward the mixing drum 2, it can push the limiting shaft 33 to move toward the second rotating shaft 221 until the end of the limiting shaft 33 is inserted into the second rotating shaft 221. Through the cooperation of the groove 331 and the snap-in groove, the rotation of the second rotating shaft 221 is restricted, thereby locking the cover plate 22. The spring 34 mounted on the limiting shaft 33 can help the limiting shaft 33 to disengage from the second rotating shaft 221.

[0042] Furthermore, a cam 233 is coaxially arranged on the mounting shaft 232 , and when the handle 23 is rotated to be matched with the first groove 112 , the cam 233 pushes the pressing plate 31 toward the end of the mixing drum 2 .

[0043] Specifically, in this embodiment, with the cam 233 squeezing the pressure plate 31, when the handle 23 is in the first groove 112, the protruding portion of the cam 233 presses on the pressure plate 31, so that the pressure plate 31 is closest to the mixing drum 2. At this time, the portion of the limiting shaft 33 provided with the groove 331 is completely inserted into the clamping groove on the second rotating shaft 221, and the spring 34 on the limiting shaft 33 is in a contracted state. At this time, the limiting shaft 33 locks the second rotating shaft 221, that is, the cover plate 22 is in a closed state and cannot rotate. With this arrangement, during the mixing process, it is ensured that the opening is in a blocked state and the cover plate 22 It cannot be rotated to ensure a safe working environment. When unloading is required, the handle 23 is turned, and the mounting shaft 232 drives the cam 233 to rotate until the handle 23 and the central axis of the mixing drum 2 are perpendicular to each other. During this process, the pressure plate 31 is moved away from the end of the mixing drum 2 under the action of the spring 34, and drives the end of the limit shaft 33 to be completely moved out of the slot on the second rotating shaft 221 until the cover 22 is unlocked. Moreover, before unloading, the handle 23 is rotated to cooperate with the second slot 113, so that the cover 22 can be locked again, that is, the cover 22 can be locked in the open state during unloading.

[0044] Furthermore, a blocking rod 5 is provided at the opening of the first groove 112 on the first bracket 11 and at the opening of the second groove 113 on the support rod 111. Each blocking rod 5 is rotatably connected to the first bracket 11 and the second bracket 12 through a connecting shaft. A first torsion spring is sleeved on the connecting shaft. The first torsion spring keeps the corresponding blocking rod 5 covering the opening of the first groove 112 or the second groove 113. The blocking rod 5 can only rotate toward the inside of the first groove 112 or the second groove 113.

[0045] Specifically, by setting a baffle rod 5 at the first groove 112 on the first bracket 11, and setting a baffle rod 5 at the second groove 113 on the bracket, when the handle 23 is in the first groove 112 or the second groove 113, the baffle rod 5 can prevent the handle 23 from moving out of the first groove 112 or the second groove 113, thereby improving the stability of the handle 23 restricting the mixing drum 2. It should be noted that, in a specific implementation, the first groove 112 and the second groove 113 must have a sufficient depth. When the handle 23 rotates to the bottom of the first groove 112 or the second groove 113, the baffle rod 5 can be rotated to be parallel to the inner wall of the first groove 112 or the second groove 113, so that the handle 23 can be easily rotated out of the first groove 112 or the second groove 113.

[0046] Furthermore, a second torsion spring is mounted on the mounting shaft 232 , and the second torsion spring drives the handle 23 to rotate to an angle parallel to the first bracket 11 .

[0047] Specifically, the provision of the second torsion spring can help the handle 23 rotate to a state parallel to the first bracket 11, that is, it is more labor-saving when the restriction of the handle 23 on the mixing drum 2 is removed, and when the mixing drum 2 is rotated by the handle 23, the handle 23 is affected by the torsion force of the second torsion spring and is more stable.

[0048] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A single-horizontal shaft forced concrete mixer, comprising a support, a mixing drum with an opening on the top and a driving assembly, wherein two brackets are fixedly connected to the support, the mixing drum is rotatably installed between the two brackets, a mixing assembly is arranged in the mixing drum, a mixing shaft of the mixing assembly is coaxially arranged with the mixing drum, and one end of the mixing shaft extends to the outside of the mixing drum and is transmission-connected to the driving assembly, characterized in that: The outer wall of one end of the mixing drum is rotatably connected with a handle, and a first groove matching the handle is arranged on a set of brackets. When the handle is rotated to match with the first groove, the mixing drum cannot be rotated due to the restriction of the handle.

2. A single-horizontal-shaft forced concrete mixer according to claim 1, characterized in that: The outer wall of the mixing drum is fixedly connected with a mounting seat, the end of the handle is rotatably connected with the mounting seat through a mounting shaft, and the first groove is vertically opened at the upper end of the corresponding bracket.

3. A single-horizontal-shaft forced concrete mixer according to claim 2, characterized in that: The bracket includes a first bracket and a second bracket, the first groove is opened at the upper end of the first bracket, the driving component is arranged on the side of the second bracket away from the mixing drum, the mixing drum is rotatably connected to the first bracket through the first rotating shaft, and the handle is installed on the side of the mixing drum corresponding to the first bracket.

4. A single-horizontal-shaft forced concrete mixer according to claim 3, characterized in that: A support rod is installed in the middle of the first bracket, and the support rod is arranged along the radial direction of the first rotating shaft, and the end of the support rod is lower than the height of the central axis of the first rotating shaft. A second groove is opened along the length direction of the support rod at one end of the support rod away from the first bracket. When the mixing drum rotates to the unloading angle, the handle can be rotated to cooperate with the second groove.

5. The single-horizontal-shaft forced concrete mixer according to claim 4, characterized in that: A cover plate is arranged at the opening of the mixing drum, and the cover plate completely covers the opening.

6. The single-horizontal-shaft forced concrete mixer according to claim 5, characterized in that: The cover plate is rotationally connected to the mixing drum through the second rotating shaft. A locking assembly is also provided on the mixing drum. The mounting shaft is transmission-connected to the locking assembly. When the handle is rotated to match the first groove, the locking assembly is driven to lock the second rotating shaft.

7. The single-horizontal-shaft forced concrete mixer according to claim 6, characterized in that: The locking assembly includes a pressure plate arranged parallel to the end face of the mixing drum, a support block is fixedly connected to the upper part of the mixing drum, a limiting shaft arranged parallel to the first rotating shaft is fixedly connected to the pressure plate, the limiting shaft and the second rotating shaft are arranged coaxially, a portion of the limiting shaft between the pressure plate and the support block is provided with a spring, and one end of the limiting shaft corresponding to the second rotating shaft has a groove along its own circumferential array, and the end of the second rotating shaft is provided with a clamping groove matching the limiting shaft.

8. The single-horizontal-shaft forced concrete mixer according to claim 7, characterized in that: A cam is coaxially arranged on the mounting shaft. When the handle is rotated to be matched with the first groove, the cam pushes the pressing plate toward the end of the mixing drum.

9. The single-horizontal-shaft forced concrete mixer according to claim 8, characterized in that: A blocking rod is provided at the opening of the first slot on the first bracket and at the opening of the second slot on the support rod. Each blocking rod is rotatably connected to the first bracket and the second bracket respectively through a connecting shaft. A first torsion spring is sleeved on the connecting shaft. The first torsion spring keeps the corresponding blocking rod covering the opening of the first slot or the second slot, and the blocking rod can only rotate toward the inside of the first slot or the second slot.

10. The single-horizontal-shaft forced concrete mixer according to claim 9, characterized in that: A second torsion spring is mounted on the mounting shaft, and the second torsion spring drives the handle to rotate to an angle parallel to the first bracket.

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