Polyurethane spraying device for refrigeration house construction

Abstract

The utility model discloses a polyurethane spraying device for refrigeration house construction, which relates to the technical field of polyurethane spraying machines and comprises a spraying machine body, a mixing barrel, a rotating shaft, a plurality of stirring rods, a plurality of connecting rods, a movable ring, a rotating ring and a driving mechanism. The multiple stirring rods are evenly hinged to the lower end of the rotating shaft in the circumferential direction, the first ends of the connecting rods are hinged to the stirring rods, the rotating shaft is sleeved with the movable ring, the rotating ring is rotationally connected to the outer side of the movable ring, the second ends of the connecting rods are hinged to the rotating ring, and the driving mechanism is connected to the upper side of the mixing barrel. Compared with the prior art, the stirring rod disclosed by the utility model rotates in the longitudinal direction while rotating in the transverse direction, so that the stirring rod can perform stirring operation in the mixing barrel in a multi-angle and multi-direction manner, further, polyurethane with higher viscosity is fully stirred and mixed, and the foaming and spraying effects can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polyurethane spraying machines, in particular to a polyurethane spraying device for cold storage construction. Background Art

[0002] Polyurethane spray insulation material is an important branch of the polyurethane industry. It is characterized by multi-purpose use of one material and has functions such as thermal insulation, heat insulation, and waterproofing. Foamed polyurethane spray is mainly used for insulation and sealing in thermal insulation and refrigeration. It can achieve on-site foaming for the coating of insulation materials that are not easy to use molds, such as large spherical storage tanks, large-diameter special-shaped pipes, cold storage walls, etc.

[0003] Since polyurethane has a high viscosity, uneven stirring is likely to occur when it is stirred in a mixing barrel, resulting in unsatisfactory foaming and spraying effects. Therefore, a polyurethane sprayer with good stirring effect is urgently needed to solve the current problems. Utility Model Content

[0004] In view of the above-mentioned problems, the utility model provides a polyurethane spraying device for cold storage construction, which enables the stirring rod to perform lateral rotational motion and longitudinal rotation at the same time, so that the stirring rod can perform stirring operations at multiple angles and directions in the mixing barrel, thereby fully stirring and mixing the polyurethane with relatively high viscosity, which can effectively improve the foaming and spraying effects.

[0005] The technical solution adopted to solve the above technical problems is: a polyurethane spraying device for cold storage construction, including a sprayer body, a mixing barrel, a rotating shaft, a plurality of stirring rods, a plurality of connecting rods, a movable ring, a rotating ring and a driving mechanism, the mixing barrel is connected to the sprayer body, the upper end of the rotating shaft passes through the mixing barrel, the rotating shaft is rotatably connected to the mixing barrel, a plurality of stirring rods are evenly hinged to the lower end of the rotating shaft along the circumferential direction, a plurality of connecting rods correspond to the stirring rods one by one, the first end of the connecting rod is hinged to the stirring rod, the movable ring is sleeved on the rotating shaft, the movable ring is movably connected to the rotating shaft, the rotating ring is rotatably connected to the outside of the movable ring, the second end of the connecting rod is hinged to the rotating ring, the driving mechanism is connected to the upper side of the mixing barrel, and the driving mechanism drives the stirring rod to move.

[0006] Furthermore, the driving mechanism comprises:

[0007] A motor connected to the upper side of the mixing barrel, wherein the motor output shaft is fixedly connected to the rotating shaft;

[0008] The cylinder is connected in the mixing barrel, and the output end of the cylinder is connected to the movable ring.

[0009] Furthermore, it also includes:

[0010] A plurality of auxiliary rods, corresponding to the stirring rods one by one, wherein the first ends of the auxiliary rods are hinged to the ends of the stirring rods;

[0011] A plurality of ball heads correspond to the auxiliary rods one by one, and the ball heads are fixedly connected to the ends of the auxiliary rods.

[0012] Furthermore, it also includes:

[0013] A plurality of limiting members correspond to the auxiliary rods one by one, the limiting members are fixedly connected to one side of the auxiliary rod, and the limiting members limit the rotation of the auxiliary rod.

[0014] Furthermore, it also includes:

[0015] A plurality of tension springs correspond to the auxiliary rods one by one, the first end of the tension spring is fixedly connected to the auxiliary rod, and the second end of the tension spring is fixedly connected to the stirring rod.

[0016] The beneficial effects of the utility model are as follows: the utility model drives multiple stirring rods to rotate through the arranged rotating shaft, and at the same time, the movable ring slides up and down on the rotating shaft, and then drives the stirring rod to rotate back and forth through the connecting rod. The stirring rod performs lateral rotational motion and rotates longitudinally at the same time, so that the stirring rod can perform stirring operations at multiple angles and directions in the mixing barrel, and then fully stir and mix the polyurethane with higher viscosity, which can effectively improve the foaming and spraying effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 This is a schematic diagram of the position of the stirring rod of the utility model.

[0019] Figure 3 It is a schematic diagram of the auxiliary rod structure of the utility model.

[0020] Figure 4 This is a schematic diagram of the position of the limiting member of the utility model.

[0021] Figure numerals: 1, sprayer body; 2, mixing barrel; 3, rotating shaft; 4, stirring rod; 5, connecting rod; 6, movable ring; 7, rotating ring; 8, driving mechanism; 81, motor; 82, cylinder; 9, auxiliary rod; 10, ball head; 11, limit piece; 12, tension spring. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] like Figure 1-Figure 4 As shown, a polyurethane spraying device for cold storage construction provided in this embodiment includes a sprayer body 1, a mixing barrel 2, a rotating shaft 3, a plurality of stirring rods 4, a plurality of connecting rods 5, a movable ring 6, a rotating ring 7 and a driving mechanism 8. The mixing barrel 2 is connected to the sprayer body 1, the upper end of the rotating shaft 3 passes through the mixing barrel 2, the rotating shaft 3 is rotatably connected to the mixing barrel 2, the mounting part is fixedly connected to the lower end of the rotating shaft 3, a plurality of stirring rods 4 are evenly hinged to the lower end of the rotating shaft 3 along the circumferential direction, a plurality of connecting rods 5 correspond to the stirring rods 4 one by one, the first end of the connecting rod 5 is hinged to the stirring rod 4, the movable ring 6 is sleeved on the rotating shaft 3, the movable ring 6 is movably connected to the rotating shaft 3, the rotating ring 7 is rotatably connected to the outside of the movable ring 6, the second end of the connecting rod 5 is hinged to the rotating ring 7, the driving mechanism 8 is connected to the upper side of the mixing barrel 2, and the driving mechanism 8 drives the stirring rod 4 to move.

[0024] The utility model drives a plurality of stirring rods 4 to rotate by means of a rotating shaft 3. At the same time, a movable ring 6 slides up and down on the rotating shaft 3, and then drives the stirring rods 4 to rotate back and forth through a connecting rod 5. The stirring rods 4 rotate in the longitudinal direction while performing a lateral rotational motion, so that the stirring rods 4 can perform a stirring operation at multiple angles and directions in the mixing barrel 2, and then fully stir and mix the polyurethane with a relatively large viscosity, which can effectively improve the foaming and spraying effects.

[0025] Specifically, the driving mechanism 8 includes:

[0026] The motor 81 is connected to the upper side of the mixing barrel 2, and the output shaft of the motor 81 is fixedly connected to the rotating shaft 3;

[0027] The cylinder 82 is connected to the mixing barrel 2 , and the output end of the cylinder 82 is connected to the movable ring 6 .

[0028] In the above embodiment, the motor 81 drives the rotating shaft 3 to rotate, and then drives the stirring rod 4, the connecting rod 5, and the rotating ring 7 to rotate. During this process, the rotating ring 7 rotates outside the movable ring 6, and the cylinder 82 reciprocates to drive the movable ring 6 and the rotating ring 7 to move up and down, and then drives the connecting rod 5 to make the stirring rod 4 rotate longitudinally.

[0029] Specifically, a plurality of auxiliary rods 9 correspond to the stirring rods 4 one by one, and a first end of the auxiliary rod 9 is hinged to the end of the stirring rod 4;

[0030] A plurality of ball heads 10 correspond to the auxiliary rods 9 one by one, and the ball heads 10 are fixedly connected to the ends of the auxiliary rods 9 .

[0031] In the above embodiments, the hinged auxiliary rod 9 further improves the stirring effect of the overall device, and the provision of the ball head 10 prevents the end of the auxiliary rod 9 from rubbing against the inner wall of the mixing barrel 2 and causing damage to the inner wall of the mixing barrel 2.

[0032] Specifically, it also includes:

[0033] A plurality of limit members 11 correspond to the auxiliary rods 9 one by one, the limit members 11 are fixedly connected to one side of the auxiliary rods 9, the limit members 11 limit the rotation of the auxiliary rods 9, a plurality of tension springs 12 correspond to the auxiliary rods 9 one by one, the first end of the tension spring 12 is fixedly connected to the auxiliary rod 9, and the second end of the tension spring 12 is fixedly connected to the stirring rod 4.

[0034] In the above embodiment, the limiter 11 limits the rotation of the auxiliary rod 9 to prevent the auxiliary rod 9 from rotating too much, and the tension spring 12 has a certain limiting effect on the auxiliary rod 9, so that the auxiliary rod 9 can rotate slightly, but the rotation amplitude will not be too large.

[0035] The working principle of the utility model is as follows: after the polyurethane material to be stirred is placed into the mixing barrel 2, the motor 81 is operated to drive the rotating shaft 3 to rotate, and the rotating shaft 3 drives the stirring shaft to rotate. During this process, the stirring shaft, the connecting rod 5, and the rotating ring 7 rotate synchronously, and the rotating ring 7 rotates outside the movable ring 6. At the same time, the cylinder 82 is operated to make reciprocating motion, and the cylinder 82 drives the movable ring 6 to make up and down reciprocating motion on the rotating shaft 3. The movable ring 6 drives the connecting rod 5 to move, and the connecting rod 5 drives the stirring shaft to rotate longitudinally. During this process, the stirring shaft drives the auxiliary rod 9 to rotate. When the ball head 10 contacts and squeezes the inner wall of the mixing barrel 2, the tension spring 12 is stretched, and the auxiliary rod 9 rotates slightly. The limit piece 11 limits the auxiliary rod 9, limits the angle of reverse rotation of the auxiliary rod 9, so that the auxiliary rod 9 rotates slightly without affecting the normal stirring operation of the stirring rod 4.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A polyurethane spraying device for cold storage construction, comprising a spraying machine body (1) and a mixing barrel (2), wherein the mixing barrel (2) is connected to the spraying machine body (1), characterized in that: Also includes: A rotating shaft (3), the upper end of which passes through the mixing barrel (2), and the rotating shaft (3) is rotatably connected to the mixing barrel (2); A plurality of stirring rods (4) are evenly hinged to the lower end of the rotating shaft (3) along the circumferential direction; A plurality of connecting rods (5), corresponding one to the stirring rods (4), wherein the first ends of the connecting rods (5) are hingedly connected to the stirring rods (4); A movable ring (6) is sleeved on the rotating shaft (3), and the movable ring (6) is movably connected to the rotating shaft (3); A rotating ring (7) is rotatably connected to the outer side of the movable ring (6), and the second end of the connecting rod (5) is hinged to the rotating ring (7); A driving mechanism (8) is connected to the upper side of the mixing barrel (2), and the driving mechanism (8) drives the stirring rod (4) to move.

2. A polyurethane spraying device for cold storage construction according to claim 1, characterized in that: The driving mechanism (8) comprises: A motor (81) is connected to the upper side of the mixing barrel (2), and an output shaft of the motor (81) is fixedly connected to the rotating shaft (3); The cylinder (82) is connected to the mixing barrel (2), and the output end of the cylinder (82) is connected to the movable ring (6).

3. A polyurethane spraying device for cold storage construction according to claim 1, characterized in that: Also includes: A plurality of auxiliary rods (9), corresponding one to the stirring rods (4), wherein the first ends of the auxiliary rods (9) are hinged to the ends of the stirring rods (4); A plurality of ball heads (10) correspond one to one with the auxiliary rods (9), and the ball heads (10) are fixedly connected to the ends of the auxiliary rods (9).

4. A polyurethane spraying device for cold storage construction according to claim 3, characterized in that: Also includes: A plurality of limiting members (11) correspond to the auxiliary rods (9) one by one, the limiting members (11) are fixedly connected to one side of the auxiliary rod (9), and the limiting members (11) limit the rotation of the auxiliary rod (9).

5. A polyurethane spraying device for cold storage construction according to claim 3, characterized in that: Also includes: A plurality of tension springs (12) correspond one to one with the auxiliary rods (9); a first end of the tension spring (12) is fixedly connected to the auxiliary rod (9), and a second end of the tension spring (12) is fixedly connected to the stirring rod (4).

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