A sprayer and a stirring motor mounting structure thereof

Abstract

The utility model provides a kind of sprayer and its stirring motor mounting structure.The utility model includes cylinder, motor main body, stirring blade, cylinder includes cylinder bottom wall, motor main body is equipped with motor shaft, cylinder bottom wall is equipped with through hole, motor main body is located the outside of cylinder, motor shaft is inserted into cylinder from through hole, it further includes mounting sleeve, locking part, first sealing element, mounting sleeve includes connecting end, locking end, connecting end is connected in motor main body, locking end passes through through hole and enters into cylinder;Locking part is locked with locking end, and then make cylinder bottom wall be clamped between locking part and connecting end;First sealing element is installed between mounting sleeve and cylinder bottom wall, and then make through hole and mounting sleeve between realize sealing;Mounting sleeve is equipped with the axle hole for motor shaft to pass through between, second sealing element is installed between axle hole and motor shaft.The positioning form of traditional need three screws positioning is completely changed, it has strong sealing performance after installation is completed.

Description

Technical Field

[0001] This utility model relates to motor mounting structures, and more particularly, to a sprayer and its mixing motor mounting structure. Background Technology

[0002] In agricultural plant protection and disease prevention, backpack sprayers are widely used due to their portability and ease of operation. To ensure uniform pesticide concentration during spraying and avoid poor application results due to pesticide stratification, a stirring motor with stirring blades is usually installed inside the sprayer. Its core function is to continuously stir the pesticide solution inside the cylinder to achieve uniform mixing of the pesticide components.

[0003] The existing backpack sprayer's mixing motor installation structure has formed a relatively conventional design scheme, as follows: The motor shaft of the mixing motor typically runs from bottom to top through the lower wall of the sprayer cylinder and extends into the cylinder; mixing blades are mounted on the motor shaft section located inside the cylinder, so that the rotation of the motor shaft drives the blades to agitate the liquid medicine; to fix the mixing motor to the cylinder, the outer periphery of the mixing motor housing is provided with mounting feet, which have three circumferentially distributed through holes. Three screws are respectively passed through the corresponding through holes and threadedly connected to the threaded holes on the lower wall of the cylinder to complete the fixed installation of the motor; at the same time, to prevent the liquid medicine inside the cylinder from leaking from the joint surface between the motor and the cylinder, a sealing ring is also embedded between the side wall of the mixing motor and the lower wall of the cylinder to achieve a seal between the mating surfaces.

[0004] While the existing installation structure can meet the basic assembly and sealing requirements of the mixing motor, it still suffers from low sealing reliability in practical applications, posing a risk of liquid leakage. During screw tightening, manual operation makes it difficult to ensure that the tightening torque of the three screws is completely consistent. Significant differences in screw tightness can lead to uneven stress on the contact surfaces between the mixing motor's side wall and the lower cylinder wall, resulting in insufficient local compression of the sealing ring and the formation of sealing gaps. All of these situations can easily cause liquid leakage from the sealing surface inside the cylinder, not only wasting the liquid but also potentially corroding the mixing motor's housing or terminals, posing a safety hazard of motor short circuit. Utility Model Content

[0005] In view of this, the first objective of this utility model is to provide a stirring motor mounting structure that has strong sealing performance after installation.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: A stirring motor mounting structure includes a cylinder, a motor body, and stirring blades. The cylinder includes a bottom wall, the motor body has a motor shaft, and the bottom wall has a through hole. The motor body is located outside the cylinder, and the motor shaft is inserted into the cylinder through the through hole. The structure also includes a mounting sleeve, a locking element, and a first sealing element. The mounting sleeve includes a connecting end and a locking end. The connecting end is connected to the motor body, and the locking end passes through the through hole and enters the cylinder. The locking member is locked to the locking end, thereby clamping the bottom wall of the cylinder between the locking member and the connecting end; The first sealing element is installed between the mounting sleeve and the bottom wall of the cylinder, thereby achieving a seal between the through hole and the mounting sleeve; The mounting sleeve has a shaft hole through which the motor shaft passes, and a second seal is installed between the shaft hole and the motor shaft.

[0007] The above technical solution completely changes the traditional positioning method that requires three screws. By using the locking end that passes through the through hole, the locking element locks with the locking end, so that the bottom wall of the cylinder is clamped between the locking element and the connecting end. The entire motor body can then be tightly connected to the cylinder. The first sealing element can be tightly squeezed between the mounting sleeve and the bottom wall of the cylinder, ensuring the sealing between the through hole and the mounting sleeve. After installation, it has strong sealing performance.

[0008] Preferably, it also includes a fastening screw. The mounting sleeve includes a connecting block and a locking block. The connecting end is located on the connecting block. The connecting block is located between the motor body and the bottom wall of the cylinder. The fastening screw passes through the connecting block and is threaded onto the motor body. The locking block extends into the cylinder and is used to cooperate with the locking element for locking.

[0009] With the above technical solution, the disassembly and assembly of the motor body and the connecting block are not only more convenient, but the connection stability is also effectively improved.

[0010] Preferably, the first sealing element is a sealing ring, which is installed at the connection between the connecting block and the locking block, and abuts against the outer wall of the bottom wall of the cylinder.

[0011] The above technical solution provides a more stable installation position for the first seal at the connection between the connecting block and the locking block, which helps to improve the overall sealing performance of the first seal.

[0012] Preferably, the mounting sleeve includes a connecting block and a locking block. The locking element includes a locking nut. The locking block extends into the interior of the cylinder. The locking end is located on the locking block. The locking nut is threadedly connected to the locking block. The bottom wall of the cylinder is clamped between the locking nut and the connecting block. With this technical solution, only one locking nut and locking block are needed for threaded engagement. The bottom wall of the cylinder can be clamped between the locking nut and the connecting block, making assembly and disassembly convenient and effectively ensuring the alignment of the motor body. The first sealing element can be stably pressed between the mounting sleeve and the bottom wall of the cylinder, resulting in a strong sealing effect.

[0013] Preferably, the second seal is a rubber sealing block, and the number of second seals in the shaft hole is two or more, with the motor shaft passing through the second seal.

[0014] Through the above technical solution, the second seal can seal the space between the motor shaft and the shaft hole, thereby preventing water inside the cylinder from accidentally seeping into the motor body from between the motor shaft and the shaft hole.

[0015] Preferably, a barrier plate is provided in the shaft hole, the barrier plate is separated between two adjacent second seals, and the motor shaft passes through the second seals and the barrier plate.

[0016] Through the above technical solution, on the one hand, the barrier plate is placed between the first seal and the second seal, which can effectively maintain the stability of the positions of the first seal and the second seal and ensure their sealing effect; on the other hand, the barrier plate can also guide the motor shaft and reduce the possibility of radial wobbling of the motor shaft.

[0017] Preferably, the bottom wall of the cylinder is provided with a groove that is recessed into the cylinder, and the connecting block is located in the groove.

[0018] Through the above technical solution, firstly, the bottom wall of the cylinder with the concave groove structure has higher structural strength and can provide a more stable installation environment for the motor body; secondly, the groove can provide a certain initial positioning position for the motor installation, resulting in higher installation accuracy.

[0019] The second objective of this invention is to provide a sprayer with strong internal sealing performance.

[0020] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: A sprayer including the above-described stirring motor mounting structure.

[0021] Through the above technical solution, a brand-new sealing connection structure is adopted between the stirring motor and the cylinder, which has strong sealing performance. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the installation structure for an embodiment; Figure 2 This is a partial cross-sectional schematic diagram of an embodiment; Figure 3 for Figure 2 Enlarged view of part A; Figure 4 This is an exploded view of the structure of an embodiment. Reference numerals: 1. Cylinder body; 2. Bottom wall of the cylinder; 3. Motor body; 4. Motor shaft; 5. Stirring blade; 6. Through hole; 7. Mounting sleeve; 71. Connecting block; 711. Connecting end; 72. Locking block; 721. Locking end; 8. Locking element; 81. Locking nut; 9. First sealing element; 10. Barrier plate; 11. Groove; 12. Second sealing element; 13. Fastening screw; 14. Shaft hole. Detailed Implementation

[0023] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered. Example 1:

[0024] A stirring motor mounting structure includes a cylinder 1, a motor body 3, and stirring blades 5.

[0025] The cylinder body 1 includes a bottom wall 2, which is located at the bottom of the cylinder body 1 under normal use. The bottom wall 2 is provided with a through hole 6.

[0026] The motor body 3 is provided with a motor shaft 4. The motor body 3 is located outside the cylinder 1, and the motor shaft 4 is inserted into the cylinder 1 through the through hole 6.

[0027] It also includes a mounting sleeve 7, a locking element 8, and a first sealing element 9. The mounting sleeve 7 includes a connecting end 711 and a locking end 721. The connecting end 711 is connected to the motor body 3, and the locking end 721 passes through the through hole 6 and enters the cylinder 1. The locking element 8 locks with the locking end 721, thereby clamping the bottom wall 2 of the cylinder between the locking element 8 and the connecting end 711. The first sealing element 9 is installed between the mounting sleeve 7 and the bottom wall 2 of the cylinder, thereby sealing the through hole 6 and the mounting sleeve 7.

[0028] In detail, the mounting sleeve 7 includes a connecting block 71 and a locking block 72. The connecting end 711 is located on the connecting block 71. The locking end 721 is located on the locking block 72. In this embodiment, both the connecting block 71 and the locking block 72 are cylindrical in shape. The connecting block 71 is located between the motor body 3 and the bottom wall 2 of the cylinder. The locking block 72 passes through the through hole 6, extends into the interior of the cylinder 1, and is used to engage with the locking member 8 for locking.

[0029] The first sealing element 9 mentioned above is a sealing ring. The first sealing element 9 is installed at the connection between the connecting block 71 and the locking block 72, and the first sealing element 9 abuts against the outer side wall of the bottom wall 2 of the cylinder.

[0030] The aforementioned locking component 8 includes a locking nut 81, a locking block 72 extending into the interior of the cylinder 1, a locking end 721 located on the locking block 72, a locking nut 81 threadedly connected to the locking block 72, and the bottom wall 2 of the cylinder being clamped between the locking nut 81 and the connecting block 71.

[0031] To enable the connecting end 711 to be connected to the motor body 3, a fastening screw 13 is also provided. The fastening screw 13 passes through the connecting block 71 and is threaded onto the motor body 3.

[0032] The mounting sleeve 7 has a shaft hole 14 through which the motor shaft 4 passes, and the shaft hole 14 passes through both the connecting block 71 and the locking block 72.

[0033] A second seal 12 is installed between the shaft hole 14 and the motor shaft 4. The second seal 12 is a rubber sealing block, and there are two or more second seals 12 in the shaft hole 14. In this embodiment, there are two second seals 12, and the motor shaft 4 passes through the second seal 12.

[0034] A barrier plate 10 is provided in the shaft hole 14, which blocks the space between two adjacent second seals 12, and the motor shaft 4 passes through the barrier plate 10.

[0035] In addition, a groove 11 recessed into the cylinder body 1 is provided on the bottom wall 2 of the cylinder, and the connecting block 71 is located in the groove 11.

[0036] In the actual installation process, the two second seals 12 are sequentially inserted into the shaft hole 14, with the two second seals 12 located on the upper and lower sides of the barrier plate 10 respectively. The mounting sleeve 7 is installed on the motor body 3, the connecting block 71 is attached to the motor body 3, and the fastening screw 13 is connected between the connecting block 71 and the motor body 3. The motor shaft 4 will pass through the two second seals 12 and the barrier plate 10 at the same time. The first seal 9 is installed between the connecting block 71 and the locking block 72. The locking block 72 is passed through the through hole 6 from bottom to top, and the locking nut 81 is threaded onto the locking block 72 until the bottom wall 2 of the cylinder is stably clamped between the locking nut 81 and the connecting block 71. The first seal 9 will also be stably squeezed between the bottom wall 2 of the cylinder and the connecting block 71. Example 2:

[0037] A sprayer including the aforementioned stirring motor mounting structure.

[0038] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A stirring motor mounting structure, comprising a cylinder (1), a motor body (3), and stirring blades (5), wherein the cylinder (1) includes a bottom wall (2), the motor body (3) is provided with a motor shaft (4), the bottom wall (2) is provided with a through hole (6), the motor body (3) is located outside the cylinder (1), and the motor shaft (4) is inserted into the cylinder (1) through the through hole (6), characterized in that: It also includes an installation sleeve (7), a locking element (8), and a first sealing element (9). The installation sleeve (7) includes a connecting end (711) and a locking end (721). The connecting end (711) is connected to the motor body (3), and the locking end (721) passes through the through hole (6) and enters the cylinder (1). The locking member (8) is locked to the locking end (721), thereby clamping the bottom wall (2) of the cylinder between the locking member (8) and the connecting end (711); The first sealing element (9) is installed between the mounting sleeve (7) and the bottom wall (2) of the cylinder, thereby achieving a seal between the through hole (6) and the mounting sleeve (7); The mounting sleeve (7) has a shaft hole (14) through which the motor shaft (4) passes, and a second seal (12) is installed between the shaft hole (14) and the motor shaft (4).

2. The stirring motor mounting structure according to claim 1, characterized in that: It also includes a fastening screw (13), the mounting sleeve (7) includes a connecting block (71) and a locking block (72), the connecting end (711) is located on the connecting block (71), the connecting block (71) is located between the motor body (3) and the bottom wall (2) of the cylinder, the fastening screw (13) passes through the connecting block (71) and is threaded onto the motor body (3), the locking block (72) extends into the cylinder (1) and is used to cooperate with the locking member (8) for locking.

3. The stirring motor mounting structure according to claim 2, characterized in that: The first sealing element (9) is a sealing ring. The first sealing element (9) is installed at the connection between the connecting block (71) and the locking block (72). The first sealing element (9) abuts against the outer wall of the bottom wall (2) of the cylinder.

4. The stirring motor mounting structure according to claim 1, characterized in that: The mounting sleeve (7) includes a connecting block (71) and a locking block (72). The locking element (8) includes a locking nut (81). The locking block (72) extends into the cylinder (1). The locking end (721) is located on the locking block (72). The locking nut (81) is threaded to the locking block (72). The bottom wall (2) of the cylinder is clamped between the locking nut (81) and the connecting block (71).

5. The stirring motor mounting structure according to claim 1, characterized in that: The second seal (12) is a rubber sealing block. There are two or more second seals (12) in the shaft hole (14). The motor shaft (4) passes through the second seal (12).

6. The stirring motor mounting structure according to claim 5, characterized in that: The shaft hole (14) is provided with a barrier plate (10), which is separated between two adjacent second seals (12). The motor shaft (4) passes through the second seals (12) and the barrier plate (10).

7. The stirring motor mounting structure according to claim 2 or 4, characterized in that: The bottom wall (2) of the cylinder is provided with a groove (11) that is recessed into the cylinder (1), and the connecting block (71) is located in the groove (11).

8. A sprayer, characterized in that: Includes the stirring motor mounting structure as described in any one of claims 1-6.

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