A concrete distribution machine

Abstract

The application discloses a concrete distributing machine, which comprises a vertical frame, a balance frame rotationally connected with the vertical frame, and a second feeding pipe fixed on the balance frame. The rubber pipe is rotationally connected with the third feeding pipe through a first rotating part. When the worker lifts the rubber pipe to expand the pouring distance, the first rotating part rotates around the axis of the third feeding pipe. Compared with the traditional way of holding and bending the rubber pipe, the labor intensity of the worker is reduced. The end of the third feeding pipe is pulled by a pull rope on the rotating shaft to prevent the second rotating part from being stuck due to the gravity of the third feeding pipe. The rotation of the rotating shaft is driven by a driving mechanism, and then the third feeding pipe is rotated by an angle through the pull rope, so that the pouring position of the rubber pipe is changed. After the position is adjusted, the continued rotation of the third feeding pipe is limited by the meshing of the positioning teeth and the clamping teeth, so that the problem that the position of the rubber pipe is difficult to control in windy weather is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of concrete construction, in particular, relates to a concrete distributing machine. BACKGROUND

[0002] The concrete distributing machine is the terminal equipment of pumping concrete, and its function is to send the pumped concrete to the template to be poured through the pipeline.

[0003] The traditional concrete distributing machine comprises a stand and a balance frame rotatably installed on the top of the stand, wherein the stand is fixedly provided with a first feeding pipe extending upward, and the balance frame is fixedly provided with a second feeding pipe, wherein the first feeding pipe and the second feeding pipe are rotatably connected, the other end of the second feeding pipe is rotatably connected with a third feeding pipe arranged horizontally through an adapter pipe, and the end of the third feeding pipe is provided with a rubber pipe for discharging concrete.

[0004] During the use of the concrete distributing machine, in order to transfer the pouring position in the pouring area, the rubber pipe needs to be manually pulled to drive the third feeding pipe to rotate around the end of the second feeding pipe, or the balance frame to rotate around the stand, so as to achieve the purpose of changing the pouring position. There is no limiting mechanism for limiting the relative rotation between the conventional stand and the balance frame and between the second feeding pipe and the third feeding pipe. When the concrete distributing machine is working in a windy environment, the third feeding pipe and the balance frame are easily blown, and the worker needs to spend a lot of physical strength to fix the position of the rubber pipe, so as to realize accurate pouring.

[0005] Therefore, how to design a concrete distributing machine that reduces the labor intensity of workers has become a technical problem to be solved by the person skilled in the art. SUMMARY

[0006] In order to solve at least one technical problem mentioned in the background art, the purpose of the present application is to provide a concrete distributing machine to solve the problem that the third feeding pipe and the balance frame are randomly rotated in a harsh environment, resulting in an increase in the labor intensity of workers.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0008] The utility model provides a concrete distributing machine, including stand, balance frame is connected with stand rotation, including fixedly installed on balance frame and presents the second feeding pipe of horizontal arrangement, the third feeding pipe is arranged below balance frame and presents the horizontal arrangement, and the rubber tube is rotated and is connected with the first rotation part and the second rotation part respectively in both ends of third feeding pipe, the axis of first rotation part coincides with the axis of third feeding pipe, and first rotation part is fixedly connected with rubber tube, and the axis of second rotation part is vertical state and is rotated and connected with second feeding pipe, fixedly arranged with the extension frame board on balance frame, rotation axis is rotated and connected with second rotation part axis coincides on extension frame board, and rotation axis is fixedly connected with the one end of third feeding pipe near rubber tube through pull rope, still include the drive mechanism for driving rotation axis rotation, the positioning block of sliding connection on extension frame board, be equipped with the positioning tooth on positioning block, the circumferential wall of rotation axis is equipped with a plurality of clamping tooth, when positioning tooth and clamping tooth engage, rotation axis circumferential rotation lock.

[0009] Further, the drive mechanism includes a second motor, a driving bevel gear and a driven bevel gear, the driven bevel gear is fixed on the rotation axis, the second motor is fixed on the extension frame plate, the driving bevel gear is installed on the output shaft of the second motor and meshes with the driven bevel gear.

[0010] Further, it further includes a second sliding groove opened in the top wall of the extension frame plate, and the bottom wall of the positioning block is fixedly provided with a sliding block inserted into the second sliding groove, and the sliding block is slidably connected with the second sliding groove.

[0011] Further, it further includes an electromagnetic pusher, the electromagnetic pusher includes a push rod, an armature, an electromagnet and a spring, the housing of the electromagnetic pusher is fixedly installed on the extension frame plate, one end of the push rod is fixedly connected with the positioning block, the other end of the push rod extends into the housing of the electromagnetic pusher and is fixedly connected with the armature, the electromagnet is fixedly installed in the housing of the electromagnetic pusher and is opposite to the armature, and the spring is installed between the armature and the electromagnet.

[0012] Further, a spline shaft is fixedly installed on the output shaft of the second motor, a spline sleeve is spline-connected on the spline shaft, the driving bevel gear is fixed on the spline sleeve, a push ring is fixedly installed on the driving bevel gear, a push rod is fixedly installed on the positioning block and inserted into the push ring, when the electromagnetic pusher is powered off, the positioning tooth meshes with the clamping tooth, the push rod pushes the driving bevel gear to disengage with the driven bevel gear, when the electromagnetic pusher is powered on, the positioning tooth disengages with the clamping tooth, and the driving bevel gear meshes with the driven bevel gear.

[0013] Further, the rotation part includes a first positioning baffle and a second positioning baffle, a ring groove is opened in the first positioning baffle, a connecting block is fixedly provided on the second positioning baffle and inserted into the ring groove, the longitudinal section of the ring groove is T-shaped, and the connecting block is slidably connected with the ring groove.

[0014] Further, the second positioning baffle is further provided with an extension cylinder, the first positioning baffle is installed in the extension cylinder, and a blocking ring is further fixed on the extension cylinder through positioning screws, and the blocking ring is in abutment with the first positioning baffle.

[0015] Further, the first positioning baffle and the second positioning baffle are both provided with a channel for the concrete to pass through, the first positioning baffle is provided with a compensation sleeve extending into the channel of the second positioning baffle, the second positioning baffle is provided with a second settlement groove, and the side wall of the compensation sleeve is provided with a compensation blocking edge extending radially outward to the second settlement groove.

[0016] Further, the first positioning baffle of the first rotating part is fixedly connected with the third feeding pipe, the second positioning baffle of the first rotating part is fixedly installed with a fourth adapter pipe, the rubber pipe is fixedly connected with the fourth adapter pipe, the first positioning baffle of the second rotating part is fixedly connected with the second feeding pipe through a second adapter pipe, the second positioning baffle of the second rotating part is fixedly connected with the third feeding pipe through a third adapter pipe, and the second adapter pipe, the third adapter pipe and the fourth adapter pipe are all L-shaped.

[0017] Further, the first feeding pipe and the second feeding pipe are fixedly arranged on the vertical support in a longitudinal direction, one end of the first feeding pipe close to the vertical support is connected with a first adapter pipe through a flange, a supporting plate is fixedly installed on the vertical support, a second gear is rotatably installed on the supporting plate, a balance frame is fixedly installed on the second gear, the other end of the first adapter pipe is fixed on the balance frame, the end of the first feeding pipe is fixed on the supporting plate, the supporting plate is provided with a first gear meshing with the second gear and a first motor driving the first gear to rotate, the end of the first adapter pipe is fixedly provided with a connecting sleeve penetrating through the second gear, and a first extension part of the connecting sleeve extends into the first feeding pipe and is rotatably connected with the first feeding pipe.

[0018] Compared with the prior art, the beneficial effects of the present application are that: the rubber pipe is rotatably connected with the third feeding pipe through the first rotating part, when the worker lifts the rubber pipe to expand the pouring distance, the first rotating part rotates around the axis of the third feeding pipe, which reduces the labor intensity of the worker compared with the traditional way of holding and bending the rubber pipe.

[0019] The end of the third feeding pipe is pulled by the pull rope on the rotating shaft to prevent the second rotating part from being stuck due to the influence of its own gravity.

[0020] The rotation of the rotating shaft is driven by the driving mechanism, and then the third feeding pipe is rotated by an angle through the pull rope, the pouring position of the rubber pipe is changed, and the continued rotation of the third feeding pipe is limited by the meshing of the positioning teeth and the clamping teeth after the position adjustment, solving the problem of difficult control of the position of the rubber pipe in windy weather. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is a first partial sectional view of the present invention;

[0023] Figure 3 is a second partial sectional view of the present invention;

[0024] Figure 4 is a schematic diagram of the first state of the positioning block of the present invention;

[0025] Figure 5 is a schematic diagram of the second state of the positioning block of the present invention;

[0026] Figure 6 is a schematic diagram of the angle change structure of the third feed pipe;

[0027] Figure 7 is a first partial expanded schematic diagram of the present invention;

[0028] Figure 8 is a schematic diagram of the structure of the connecting sleeve of the present invention;

[0029] Figure 9 is a schematic diagram of the structure of the feed pipe of the present invention;

[0030] Figure 10 is a partial expanded schematic diagram of the feed pipe group of the present invention;

[0031] Figure 11 is a schematic diagram of the structure of the third adapter pipe;

[0032] Figure 12 is a schematic diagram of the structure of the second adapter pipe;

[0033] Figure 13 is a second partial expanded schematic diagram of the structure of the present invention;

[0034] Figure 14 is a sectional view of the electromagnetic pusher.

[0035] In the diagram: 100, upright frame; 1001, support plate; 1002, balance frame; 1003, counterweight; 1004, extension plate; 10041, first sliding groove; 10042, second sliding groove; 101, first conveying pipe; 1011, first flange; 1012, first settling tank; 102, second conveying pipe; 103, third conveying pipe; 1031, first connector; 1032, second connector; 1033, first connecting ring; 103 4. Second connecting ring; 104. First adapter pipe; 1041. Second flange; 105. Second adapter pipe; 1051. Third connector; 1052. Fourth connector; 106. Third adapter pipe; 1061. Fifth connector; 1062. Sixth connector; 107. Fourth adapter pipe; 1071. Seventh connector; 1072. Eighth connector; 108. Rubber hose; 21. First positioning baffle; 211. Ring groove; 212. Guide slope; 22. Compensating sleeve; 221. Compensating flange; 23. Second positioning baffle; 231. Connecting block; 232. Extension cylinder; 233. Second settling trough; 24. Retaining ring; 25. Positioning screw; 36. Connecting sleeve; 31. First extension; 311. First bent edge; 32. Second extension; 321. Second bent edge; 41. First motor; 42. First gear; 43. Second gear; 431. Clearance hole; 51. Rotating shaft; 52. First traction ring 53. Second traction ring; 54. Snap-fit ​​tooth; 61. Driven bevel gear; 62. Driven bevel gear; 63. Spline sleeve; 64. Actuating ring; 65. Second motor; 651. Spline shaft; 7. Electromagnetic actuator; 71. Push rod; 72. Armature; 73. Electromagnet; 74. Spring; 81. Positioning block; 82. Positioning groove; 821. Positioning tooth; 83. Sliding block; 84. Extension rod; 85. Actuating rod; 901. First pull rope; 902. Second pull rope. Detailed Implementation

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] This embodiment provides a concrete placing boom, mainly used to limit the uncontrolled rotation of the balance frame and the third conveying pipe in harsh environments, which increases the labor intensity of workers.

[0038] like Figure 1 As shown, it includes a support frame 100, wherein a balance frame 1002 is rotatably mounted on the top of the support frame 100, and a counterweight 1003 is installed on one end of the balance frame 1002 to maintain the balance of the concrete placing machine and prevent the concrete placing machine from tipping over during use.

[0039] Specifically, in the embodiment, as shown in Figure 1 , the concrete distributing machine comprises a conveying pipe group for conveying concrete, wherein the conveying pipe group comprises a first conveying pipe 101, a second conveying pipe 102, a third conveying pipe 103 and a rubber pipe 108, the first conveying pipe 101 is fixed on the stand 100 by a hoop and extends vertically upward, the second conveying pipe 102 is fixedly installed on the balance frame 1002, and the second conveying pipe 102 is arranged horizontally to increase the construction radius of the concrete distributing machine; the third conveying pipe 103 is installed on the lower side of the balance frame 1002, the second conveying pipe 102 and the third conveying pipe 103 are connected through an adapter pipe, one end of the adapter pipe is fixedly connected with the second conveying pipe 102, and the vertically downward end of the adapter pipe is rotatably connected with the third conveying pipe 103, so that the third conveying pipe 103 can rotate around the Z-axis, and the construction range of the concrete distributing machine is further expanded, and the rubber pipe 108 is installed at the end of the third conveying pipe 103, and the discharging end of the rubber pipe 108 extends vertically downward, thereby facilitating the discharging of concrete.

[0040] It is worth mentioning that the Z-axis direction is consistent with the vertical direction of the stand 100, and the coordinate system in Figure 1 may be referred to to strengthen the understanding of the direction.

[0041] When the concrete distributing machine is in the construction process, the balance frame 1002 needs to rotate around the axis of the stand 100, and since the first conveying pipe 101 is installed on the stand 100 by a hoop, the second conveying pipe 102 needs to be rotatably connected with the first conveying pipe 101 to facilitate the angle adjustment of the concrete distributing machine, in the embodiment, as shown in Figure 2 , Figure 7 and Figure 9 , a first adapter pipe 104 is arranged between the first conveying pipe 101 and the second conveying pipe 102 to connect the first conveying pipe 101 and the second conveying pipe 102.

[0042] As shown in Figure 9 , the first adapter pipe 104 is in an L shape, and one end of the first adapter pipe 104 is connected with the second conveying pipe 102 through a flange.

[0043] As shown in Figure 2 , the top wall of the stand 100 is fixedly installed with a support plate 1001, the top wall of the support plate 1001 is rotatably connected with a second gear 43, the bottom wall of the balance frame 1002 is fixedly connected with the top wall of the second gear 43, a first gear 42 is also rotatably installed on the support plate 1001, the first gear 42 and the second gear 43 are in mesh with each other, the bottom wall of the support plate 1001 is also fixedly installed with a first motor 41 for driving the first gear 42 to rotate, and the first gear 42 is fixedly installed on the output shaft of the first motor 41.

[0044] Through the above arrangement, when it is needed to control the rotation of the balance frame 1002, the first motor 41 is driven at this time, which can drive the first gear 42 to rotate, and then drive the balance frame 1002 to rotate through the second gear 43 engaged with the first gear 42, and then drive the first conveying pipe 101 and the second conveying pipe 102 to rotate around the axis of the first conveying pipe 101.

[0045] It is worth mentioning here that the first motor 41 is a stepper motor, which can accurately control the angle of rotation of the balance frame 1002. When the first motor 41 stops rotating, the balance frame 1002 and the stand 100 can be locked by the first motor 41 to prevent the balance frame 1002 from rotating freely.

[0046] In order to realize the connection of the first conveying pipe 101 and the second conveying pipe 102, in the embodiment, as shown in Figure 2 and Figure 7 , the first flange plate 1011 is arranged on the side close to the support plate 1001 of the first conveying pipe 101, and the first flange plate 1011 is fixedly connected with the support plate 1001 through bolts. The second flange plate 1041 is arranged on the side close to the support plate 1001 of the first adapter pipe 104, and the second flange plate 1041 is fixedly connected with the second gear 43 through bolts penetrating the balance frame 1002. A connecting sleeve 3 is further arranged between the first adapter pipe 104 and the first conveying pipe 101 for the transition of concrete.

[0047] Specifically, in the embodiment, as shown in Figure 2 and Figure 8 , the connecting sleeve 3 is provided with a first extension 31 close to one end of the first conveying pipe 101, which is inserted into the inner cavity of the first conveying pipe 101. The connecting sleeve 3 is provided with a second extension 32 close to one end of the first adapter pipe 104, which is extended into the inner cavity of the first adapter pipe 104 for the conveying of concrete. The connecting sleeve 3 further comprises a first bent edge 311 arranged on the first extension 31 and extending outward along the radial direction of the connecting sleeve 3. The second extension 32 is provided with a second bent edge 321 extending outward along the radial direction of the connecting sleeve 3.

[0048] Specifically, the second gear 43 is provided with an avoidance hole 431 penetrating up and down for the connecting sleeve 3 to pass through. When the connecting sleeve 3 is installed, the second extension 32 is inserted into the inner cavity of the first adapter pipe 104, and then the second bent edge 321 is abutted with the bottom wall of the second flange plate 1041. Then the second flange plate 1041 and the second bent edge 321 are fixed on the balance frame 1002 through bolts. The connecting sleeve 3 passes through the avoidance hole 431 of the second gear 43 downward, and then the first extension 31 is inserted into the inner cavity of the first conveying pipe 101, as shown in Figure 2 andFigure 7 As shown, the first flange plate 1011 is further provided with a first settling groove 1012 recessed downward, wherein the first bent edge 311 is inserted into the first settling groove 1012, and the side wall of the first bent edge 311 is rotationally connected with the inner wall of the first settling groove 1012.

[0049] Through the above arrangement, when the balance frame 1002 rotates, the second conveying pipe 102 is driven to rotate synchronously with the connecting sleeve 3, at this time, the connecting sleeve 3 and the first conveying pipe 101 are relatively rotated.

[0050] Specifically, in the embodiment, as shown in Figure 2 , when the outer diameter of the first bent edge 311 is greater than the hole diameter of the support plate 1001 for the connecting sleeve 3 to pass through, the advantage of this arrangement is that when the concrete is conveyed upward along the direction of the arrow in Figure 2 , the first bent edge 311 abuts against the bottom wall of the support plate 1001, preventing the first extension 31 of the connecting sleeve 3 from being deformed by the impact of the concrete; since the first extension 31 and the second extension 32 extend into the first conveying pipe 101 and the first adapter pipe 104 respectively, the smooth transition of the concrete can be achieved, preventing the concrete from leaking at the connection between the first conveying pipe 101 and the first adapter pipe 104, and improving the sealing performance of the conveying pipe group.

[0051] In order to realize the connection between the second conveying pipe 102 and the third conveying pipe 103, in the embodiment, as shown in Figure 1 , Figure 9 and Figure 10 , the second conveying pipe 102 and the third conveying pipe 103 are further provided with a second adapter pipe 105 and a third adapter pipe 106, wherein the second adapter pipe 105 and the third adapter pipe 106 are both L-shaped, the second conveying pipe 102 and the third conveying pipe 103 are both horizontally arranged, the two ends of the third conveying pipe 103 are respectively a first connecting head 1031 and a second connecting head 1032, the two ends of the second adapter pipe 105 are respectively a third connecting head 1051 and a fourth connecting head 1052, the two ends of the third adapter pipe 106 are respectively a fifth connecting head 1061 and a sixth connecting head 1062; wherein the third connecting head 1051 of the second adapter pipe 105 is connected with the end of the second conveying pipe 102 through a flange, the fifth connecting head 1061 of the third adapter pipe 106 is connected with the second connecting head 1032 of the third conveying pipe 103 through a flange, the fourth connecting head 1052 of the second adapter pipe 105 and the sixth connecting head 1062 of the third adapter pipe 106 are on the same axis, which is the Z-axis, and specifically, the fourth connecting head 1052 and the sixth connecting head 1062 are rotationally connected around the Z-axis.

[0052] The feeding pipe set further comprises a fourth adapter pipe 107, wherein the fourth adapter pipe 107 comprises a seventh connecting head 1071 and an eighth connecting head 1072, specifically, as shown in Figure 10 the seventh connecting head 1071 is rotationally connected with the first connecting head 1031 around the axis of the third feeding pipe 103, the fourth adapter pipe 107 is L-shaped, and the eighth connecting head 1072 is fixedly connected with the rubber pipe 108.

[0053] Through the above arrangement, when it is necessary to change the pouring position of the rubber pipe 108, the worker holding the rubber pipe 108 can rotate around the axis of the third feeding pipe 103, in this embodiment, the rubber pipe 108 can swing forward and backward, thereby expanding the pouring range of the concrete. Compared with the conventional mode in which the rubber pipe 108 is fixedly connected with the third feeding pipe 103 through the fourth adapter pipe 107, the worker can save the physical strength for changing the inclination angle of the rubber pipe 108.

[0054] In order to realize the rotational connection of the fourth connecting head 1052 and the sixth connecting head 1062, and realize the rotational connection of the seventh connecting head 1071 and the first connecting head 1031, in this embodiment, as shown in Figure 3 , Figure 11 and Figure 12 for example, the rotational connection relationship of the second adapter pipe 105 and the third adapter pipe 106 is introduced, wherein the fourth connecting head 1052 of the second adapter pipe 105 or the first connecting head 1031 of the third feeding pipe 103 is provided with a first positioning baffle 21, and the sixth connecting head 1062 of the third adapter pipe 106 or the seventh connecting head 1071 of the fourth adapter pipe 107 is provided with a second positioning baffle 23, wherein the first positioning baffle 21 and the second positioning baffle 23 are rotationally connected.

[0055] Specifically, as shown in Figure 3 the first positioning baffle 21 is provided with a ring groove 211, wherein the longitudinal section of the ring groove 211 is T-shaped, and the second positioning baffle 23 is fixedly provided with a connecting block 231 inserted into the ring groove 211, wherein the longitudinal section of the connecting block 231 is matched with the longitudinal section of the ring groove 211, so as to prevent the first positioning baffle 21 and the second positioning baffle 23 from moving relative to each other along the axis direction thereof, and the connecting block 231 is rotationally connected with the ring groove 211.

[0056] During the use of the feeding machine, since the third adapter pipe 106 and the fourth adapter pipe 107 are L-shaped, the concrete flowing in the feeding pipe set will impact the position of the corner. In order to avoid the second positioning baffle 23 and the first positioning baffle 21 being impacted open, in this embodiment, as shown in Figure 3As shown, the second positioning baffle 23 is fixedly provided with an extending cylinder 232 arranged along the axial direction, further comprising a retaining ring 24 and a positioning screw 25. When the first positioning baffle 21 is connected with the second positioning baffle 23, the retaining ring 24 is sleeved on the second adapter pipe 105, then the first positioning baffle 21 is inserted into the extending cylinder 232, finally the retaining ring 24 is attached to the extending cylinder 232, and then the retaining ring 24 is fixed by the positioning screw 25. At this time, the wall of the retaining ring 24 abuts against the first positioning baffle 21, thereby strengthening the axial restriction of the first positioning baffle 21 and the second positioning baffle 23.

[0057] Since the first positioning baffle 21 and the second positioning baffle 23 are rotationally connected, in order to prevent concrete from seeping into the gap between the first positioning baffle 21 and the second positioning baffle 23 and affecting the subsequent rotational relationship, in the embodiment, as shown in Figure 3 and Figure 12 shown, the first positioning baffle 21 is fixedly provided with a compensation sleeve 22 extending towards the second positioning baffle 23. Specifically, the second compensation sleeve 22 extends into the inner cavity of the third adapter pipe 106 from the second adapter pipe 105, thereby protecting the connection position of the first positioning baffle 21 and the second positioning baffle 23, smoothly transitioning the concrete downward, and solving the problem of concrete remaining in the gap between the first positioning baffle 21 and the second positioning baffle 23.

[0058] In order to reduce the damage to the compensation sleeve 22 during the flow of concrete, specifically, as shown in Figure 3 shown, one end of the compensation sleeve 22 located on the first positioning baffle 21 is provided with an inclined guide slope 212, which is used to converge the concrete to one side of the axis of the compensation sleeve 22, thereby reducing the damage to the inner wall of the compensation sleeve 22.

[0059] In order to further prevent concrete from entering the gap between the first positioning baffle 21 and the second positioning baffle 23, in the embodiment, as shown in Figure 3 , Figure 11 and Figure 12 shown, the second positioning baffle 23 is provided with a second settling groove 233 recessed downward, and the side wall of the compensation sleeve 22 is provided with a compensation retaining edge 221 extending outward along the radial direction. The compensation retaining edge 221 is inserted into the second settling groove 233, and the compensation retaining edge 221 is rotationally connected with the second settling groove 233.

[0060] Specifically, the connection mode of the first connecting head 1031 and the seventh connecting head 1071 is consistent with the connection mode of the fourth connecting head 1052 and the sixth connecting head 1062.

[0061] Because the third conveying pipe 103 of the cloth feeding machine is long, the third conveying pipe 103 is connected with the second conveying pipe 102 only through the second adapter pipe 105 and the third adapter pipe 106 at one end, which easily causes the stress of the fourth connecting head 1052 and the sixth connecting head 1062 to be large, and the end of the third conveying pipe 103 to be inclined downward, which is not conducive to the rotation of the third conveying pipe 103.

[0062] Therefore, in the embodiment, as shown in Figure 1 , and Figure 6 , the extension frame plate 1004 is fixedly arranged at one end of the balance frame 1002 away from the counterweight 1003, the rotation shaft 51 is rotationally connected to the extension frame plate 1004 and arranged longitudinally, the axis of the rotation shaft 51 coincides with the axis of the longitudinal part of the second adapter pipe 105, the traction ring is arranged on the rotation shaft 51, the connecting ring is fixedly arranged on the third conveying pipe 103, and the pulling rope is arranged, one end of the pulling rope is fixed to the traction ring, the other end of the pulling rope is fixed to the connecting ring, and the pulling rope is in a taut state, specifically, the third conveying pipe 103, the pulling rope, the longitudinal part of the second adapter pipe 105, and the longitudinal part of the third adapter pipe 106 form a triangle, the end of the third conveying pipe 103 is pulled by the pulling rope, the inclination of the third conveying pipe 103 is prevented, and the rotation connection part of the second adapter pipe 105 and the third adapter pipe 106 is prevented from being stuck.

[0063] In order to further improve the stability of the third conveying pipe 103, specifically, in the embodiment, as shown in Figure 1 , Figure 4 and Figure 6 , the traction ring is provided with two, including the first traction ring 52 and the second traction ring 53, the first traction ring 52 is located above the second traction ring 53, the connecting ring is provided with two, which are the first connecting ring 1033 and the second connecting ring 1034, the first connecting ring 1033 and the second connecting ring 1034 are distributed along the axial direction of the third conveying pipe 103, the first connecting ring 1033 is close to the rubber tube 108, the pulling rope includes the first pulling rope 901 and the second pulling rope 902, the first pulling rope 901 is installed on the first traction ring 52 and the first connecting ring 1033, and the second pulling rope 902 is installed on the second traction ring 53 and the second connecting ring 1034.

[0064] In order to be able to control the rotation angle of the third conveying pipe 103, in the embodiment, as shown in Figure 5 , Figure 6 and Figure 13As shown, the bottom end of the rotating shaft 51 is fixedly installed with the driven bevel gear 61, the bottom wall of the extension frame plate 1004 is also fixedly installed with the second motor 65 and the driving bevel gear 62 which is in mesh with the driven bevel gear 61, the output shaft of the second motor 65 is connected with the driving bevel gear 62 to drive the rotating shaft 51 to rotate, and then the third material conveying pipe 103 can be driven to rotate through the first pull rope 901 and the second pull rope 902.

[0065] In the embodiment, the driving bevel gear 62 has two states, one is that the driving bevel gear 62 is in mesh with the driven bevel gear 61 to drive the third material conveying pipe 103 to rotate, and the other is that the driving bevel gear 62 is out of mesh with the driven bevel gear 61.

[0066] When the driving bevel gear 62 is in mesh with the driven bevel gear 61, the self-locking function of the second motor 65 is weak and is not enough to limit the fixing of the third material conveying pipe 103, therefore, the embodiment also includes a locking mechanism for limiting the rotation of the third material conveying pipe 103 when the driving bevel gear 62 is out of mesh with the driven bevel gear 61.

[0067] Specifically, as shown in Figure 13 and Figure 14 The locking mechanism includes a positioning block 81, the positioning block 81 is provided with a positioning groove 82 which is open on one side, the positioning groove 82 can be sleeved on the outside of the rotating shaft 51, the inner side wall of the positioning groove 82 abuts against the side wall of the rotating shaft 51, the rotating shaft 51 is provided with a plurality of clamping teeth 54 which are arranged in the circumferential direction, the side wall of the positioning groove 82 is provided with positioning teeth 821 which are used in cooperation with the clamping teeth 54, the rotation of the rotating shaft 51 is limited by the meshing of the positioning teeth 821 and the clamping teeth 54, and the electromagnetic pusher 7 is used to drive the positioning block 81 to move.

[0068] When the driving bevel gear 62 is out of mesh with the driven bevel gear 61, the positioning teeth 821 on the positioning block 81 are meshed with the clamping teeth 54 on the rotating shaft 51 by the electromagnetic pusher 7 to limit the rotation of the rotating shaft 51 and then limit the rotation of the third material conveying pipe 103; when the driving bevel gear 62 is in mesh with the driven bevel gear 61 to drive the rotating shaft 51 to rotate, the electromagnetic pusher 7 is energized to drive the positioning block 81 to move away from the rotating shaft 51, so that the clamping teeth 54 are out of mesh with the positioning teeth 821, and then the problem of the rotation of the third material conveying pipe 103 can be solved.

[0069] Specifically, in the embodiment, as shown in Figure 14As shown, the electromagnetic pusher 7 is fixed on the extension frame plate 1004, and the electromagnetic pusher 7 comprises a push rod 71, an armature 72, an electromagnet 73 and a spring 74, one end of the push rod 71 is fixedly connected with the positioning block 81, the other end of the push rod 71 extends into the shell of the electromagnetic pusher 7 and is fixed with the armature 72, the electromagnet 73 is arranged in the shell of the electromagnetic pusher 7 and is opposite to the armature 72, and the spring 74 is installed between the armature 72 and the electromagnet 73.

[0070] When the electromagnet 73 is powered, a magnetic force is generated to attract the armature 72 to move to the side close to the electromagnet 73, at this time, the spring 74 is compressed, and the push rod 71 is withdrawn into the shell of the electromagnetic pusher 7; when the electromagnet 73 is powered off, at this time, the spring 74 pushes the armature 72 and the push rod 71 to extend outward, so that the positioning teeth 821 of the positioning block 81 are engaged with the clamping teeth 54.

[0071] In order to ensure the stability of the movement of the positioning block 81, in the embodiment, as shown in Figure 4 , Figure 5 and Figure 14 , the top wall of the extension frame plate 1004 is provided with a second sliding groove 10042 arranged along the axial direction of the push rod 71, the bottom wall of the positioning block 81 is fixedly provided with a sliding block 83 inserted into the second sliding groove 10042, and the side wall of the sliding block 83 is slidingly connected with the side wall of the second sliding groove 10042.

[0072] Since the driving bevel gear 62 has two states, in the embodiment, as shown in Figure 13 , a spline shaft 651 is fixedly installed on the output shaft of the second motor 65, a spline sleeve 63 is spline-connected with the spline shaft 651, the outer wall of the spline sleeve 63 is fixedly connected with the driving bevel gear 62, and a coaxially arranged driving ring 64 is further arranged on the driving bevel gear 62, and a driving rod 85 inserted into the driving ring 64 for driving the driving bevel gear 62 to move is fixedly arranged on the positioning block 81.

[0073] Specifically, in order to realize the installation of the driving rod 85, in the embodiment, as shown in Figure 4 and Figure 13 , the extension frame plate 1004 is provided with a first sliding groove 10041 arranged along the axial direction of the push rod 71, the first sliding groove 10041 penetrates through the bottom wall and the top wall of the extension frame plate 1004, the extension frame plate 1004 is provided with a first sliding groove 10041 arranged along the axial direction of the push rod 71, the first sliding groove 10041 penetrates through the bottom wall and the top wall of the extension frame plate 1004, the extension rod 84 extending downward through the first sliding groove 10041 is fixedly arranged on the positioning block 81, and the driving rod 85 is fixedly installed on the extension rod 84.

[0074] The concrete distributing machine can be controlled to rotate the first motor 41 during use, and then the first gear 42 drives the second gear 43 to rotate, and then the balance frame 1002 can be driven to rotate, so that the first feeding pipe 101 and the second feeding pipe 102 are relatively rotated, and then the position of the rubber pipe 108 can be changed, and the self-locking function of the first motor 41 is used to limit the arbitrary rotation of the balance frame 1002 in windy weather; the second motor 65 and the electromagnetic pusher 7 are powered, at this time the electromagnetic pusher 7 drives the positioning block 81 to move away from the rotating shaft 51, the locking of the clamping teeth 54 and the positioning teeth 821 is released, at the same time, the positioning block 81 drives the driving lever 85 to move, and then drives the driving bevel gear 62 and the driven bevel gear 61 to engage, the second motor 65 drives the rotating shaft 51 to rotate through the driving bevel gear 62 and the driven bevel gear 61, and then drives the third feeding pipe 103 to rotate through the first pull rope 901 and the second pull rope 902, and further changes the position of the rubber pipe 108; when the rubber pipe 108 reaches the specified position, the worker drags the rubber pipe 108 to rotate around the axis of the third feeding pipe 103, which can save the worker's dragging force of the rubber pipe 108 and reduce the workload of the workers; then the power supply to the second motor 65 and the electromagnetic pusher 7 is disconnected, at this time the positioning block 81 drives the positioning teeth 821 to engage with the clamping teeth 54, limiting the continuous rotation of the rotating shaft 51, and at the same time, the driving lever 85 of the positioning block 81 drives the driving bevel gear 62 and the driven bevel gear 61 to disengage, limiting the continuous rotation of the third feeding pipe 103, preventing the position of the rubber pipe 108 from changing during pouring.

[0075] It will be obvious to a person skilled in the art that, without departing from the spirit or essential characteristics of the application, the present application can be implemented in other specific forms. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the description given above, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A concrete placing machine comprising a column (100), a counterweight (1002) rotatably connected to the column (100), characterized in that: The utility model provides a kind of material conveying device, including the second material conveying pipe (102) fixed on the balance frame (1002) and horizontally arranged, third material conveying pipe (103) is arranged below the balance frame (1002) and horizontally arranged, and rubber tube (108), the both ends of third material conveying pipe (103) are rotatably connected with first rotating part and second rotating part, the axis of first rotating part coincides with the axis of third material conveying pipe (103), first rotating part is fixedly connected with rubber tube (108), the axis of second rotating part is vertically and rotatably connected with second material conveying pipe (102);Balance frame (1002) is fixed with extension frame plate (1004), the rotating shaft (51) coinciding with the axis of second rotating part is rotatably connected on the extension frame plate (1004), the rotating shaft (51) is fixedly connected with third material conveying pipe (103) by pull rope close to one end of rubber tube (108), further include the drive mechanism for driving rotating shaft (51) rotation, the positioning block (81) slidingly connected on extension frame plate (1004), the positioning block (81) is equipped with positioning tooth (821), the circumferential wall of rotating shaft (51) is equipped with a plurality of clamping teeth (54), when positioning tooth (821) is engaged with clamping tooth (54), rotating shaft (51) circumferential rotation lock.

2. A concrete distribution machine according to claim 1, characterised in that: The drive mechanism includes second motor (65), driving bevel gear (62) and driven bevel gear (61), the driven bevel gear (61) is fixed on the rotating shaft (51), second motor (65) is fixed on extension frame plate (1004), and driving bevel gear (62) is installed on the output shaft of second motor (65) and is engaged with driven bevel gear (61).

3. A concrete distribution machine according to claim 2, characterised in that: Further include the second sliding slot (10042) opened in the top wall of extension frame plate (1004), the bottom wall of positioning block (81) is fixedly provided with sliding block (83) inserted into second sliding slot (10042), and the sliding block (83) is slidably connected with the second sliding slot (10042).

4. A concrete distribution machine according to claim 3, characterised in that: Further include electromagnetic pusher (7), electromagnetic pusher (7) includes push rod (71), armature (72), electromagnet (73) and spring (74), the shell of electromagnetic pusher (7) is fixedly installed on extension frame plate (1004), one end of push rod (71) is fixedly connected with positioning block (81), the other end of push rod (71) extends into the shell of electromagnetic pusher (7) and is fixedly connected with armature (72), electromagnet (73) is fixedly installed in the shell of electromagnetic pusher (7) and opposite armature (72), and spring (74) is installed between armature (72) and electromagnet (73).

5. A concrete distribution machine according to claim 4, characterised in that: The output shaft of the second motor (65) is fixedly provided with a spline shaft (651), the spline shaft (651) is spline-connected with a spline sleeve (63), the driving bevel gear (62) is fixed on the spline sleeve (63), the driving bevel gear (62) is fixedly provided with a driving ring (64), the positioning block (81) is fixedly provided with a driving rod (85) inserted into the driving ring (64), when the electromagnetic pusher (7) is powered off, the positioning teeth (821) are engaged with the clamping teeth (54), the driving rod (85) drives the driving bevel gear (62) to disengage from the driven bevel gear (61), when the electromagnetic pusher (7) is powered on, the positioning teeth (821) disengage from the clamping teeth (54), and the driving bevel gear (62) engages with the driven bevel gear (61).

6. A concrete distribution machine according to claim 1, wherein: The first rotating part and the second rotating part each comprise a first positioning baffle (21) and a second positioning baffle (23), the first positioning baffle (21) is provided with a ring groove (211), the second positioning baffle (23) is fixedly provided with a connecting block (231) inserted into the ring groove (211), and the longitudinal section of the ring groove (211) is T-shaped.

7. A concrete distribution machine according to claim 6, characterised in that: The second positioning baffle (23) is further fixedly provided with an extension cylinder (232), the first positioning baffle (21) is installed in the extension cylinder (232), and the first positioning baffle (21) is further provided with a blocking ring (24) fixed on the extension cylinder (232) through a positioning screw (25).

8. A concrete distribution machine according to claim 7, characterised in that: The first positioning baffle (21) and the second positioning baffle (23) are each provided with a channel for the concrete to pass through, the first positioning baffle (21) is fixedly provided with a compensation sleeve (22) extending into the channel of the second positioning baffle (23), the second positioning baffle (23) is provided with a second sedimentation groove (233), and the side wall of the compensation sleeve (22) is fixedly provided with a compensation baffle (221) extending outward in the radial direction to the second sedimentation groove (233).

9. A concrete distribution machine according to claim 8, characterised in that: The first positioning baffle (21) of the first rotating part is fixedly connected with the third conveying pipe (103), the second positioning baffle (23) of the first rotating part is fixedly provided with a fourth adapter pipe (107), the rubber pipe (108) is fixedly connected with the fourth adapter pipe (107), the first positioning baffle (21) of the second rotating part is fixedly connected with the second conveying pipe (102) through a second adapter pipe (105), the second positioning baffle (23) of the second rotating part is fixedly connected with the third conveying pipe (103) through a third adapter pipe (106), and the second adapter pipe (105), the third adapter pipe (106) and the fourth adapter pipe (107) are all L-shaped.

10. A concrete distribution machine according to claim 1, wherein: The first and second material conveying pipes (101 and 102) are longitudinally arranged on the stand (100), the first adapter pipe (104) is connected to one end of the stand (100) through a flange, the support plate (1001) is fixedly installed on the stand (100), the second gear (43) is rotatably installed on the support plate (1001), the balance frame (1002) is fixedly installed on the second gear (43), the other end of the first adapter pipe (104) is fixed on the balance frame (1002), the end of the first material conveying pipe (101) is fixed on the support plate (1001), the first gear (42) engaged with the second gear (43) and the first motor (41) driving the first gear (42) to rotate are arranged on the support plate (1001), the end of the first adapter pipe (104) is fixedly provided with the connecting sleeve (3) penetrating through the second gear (43), the first extension (31) of the connecting sleeve (3) extends into the first material conveying pipe (101) and is rotatably connected with the first material conveying pipe (101).

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