Automatic locking mechanism for spray bar

Abstract

The utility model discloses an automatic locking mechanism of spray bar, including support, two supporting plates are oppositely arranged on the support, and the upper edge of supporting plate is equipped with the supporting groove for supporting spray bar, the one side of supporting plate is equipped with the swingable press block, and the press block can swing to be far from supporting groove or swing to press on spray bar, the connecting strip is arranged between two supporting plates, and the connecting strip is located the below of supporting groove, and the limiting hole is equipped on the connecting strip, when spray bar is placed in supporting groove, the nozzle on spray bar corresponds and inserts into the limiting hole. The supporting groove can be elastically expanded and contracted, and when the press block is pressed on spray bar, the gravity of press block will extrude spray bar into supporting groove. The utility model inserts the nozzle of spray bar into the limiting hole, prevents spray bar from shaking, and through press block, press spray bar on supporting plate, prevent spray bar from falling off from supporting plate, and thus realize the locking of spray bar.

Description

Technical Field

[0001] This utility model relates to the field of road maintenance technology, and in particular to an automatic locking mechanism for spray booms. Background Technology

[0002] Road maintenance and cleaning vehicles are equipped with handheld sprayers, which are fixed to a bracket when not in use. However, during the operation of the road maintenance and cleaning vehicle, due to factors such as road bumps, the sprayer may wobble on the bracket or even fall off, posing a risk of damage. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this utility model provides an automatic locking mechanism for a spray bar. The nozzle of the spray bar is inserted into the limiting hole to prevent the spray bar from shaking, and the spray bar is pressed against the support plate by the pressure block to prevent the spray bar from falling off the support plate, thereby achieving locking of the spray bar.

[0004] Technical Solution: To achieve the above objectives, this utility model provides an automatic locking mechanism for a spray bar, comprising a bracket with two support plates arranged opposite each other on the bracket. Each support plate has a support groove on its upper edge for supporting the spray bar. A swingable pressure block is provided on one side of each support plate, which can swing upwards away from the support groove or downwards to press against the spray bar. A connecting strip is provided between the two support plates, located below the support groove, and has a limiting hole. When the spray bar is placed in the support groove, the nozzle on the spray bar is inserted into the limiting hole accordingly.

[0005] Furthermore, a pressure groove is provided below the pressure block, and the pressure groove can swing down with the pressure block to lock onto the spray bar.

[0006] Furthermore, the connecting strip is provided with at least two limiting holes. The connecting strip is an elastic structural component, and at least two limiting holes can press against the nozzle in the opposite direction as the connecting strip undergoes elastic deformation.

[0007] Furthermore, the connecting strip is an upward-curved arc structure, with at least one limiting hole at each end of the arc; the spray bar placed on the support groove presses the upward-curved connecting strip to be nearly straight, so that the limiting holes at both ends of the connecting strip move away from each other until they press against the nozzle.

[0008] Furthermore, the two support plates are located between the two pressure blocks, and the pressure blocks are disposed adjacent to the support plates; when the upward-curved connecting strip is pressed to be nearly straight, the two support plates move away from each other and adhere to the pressure blocks.

[0009] Furthermore, when the pressure block is not pressed on the spray bar, the weight of the spray bar is insufficient to straighten the connecting strip on its own, and a gap remains between the support plate and the pressure block; when both pressure blocks are pressed on the spray bar at the same time, the weight of the spray bar and the two pressure blocks together straightens the connecting strip, making the support plate adhere tightly to the pressure block.

[0010] Furthermore, the pressure block is hinged to one end of the support plate near the bracket, and the connecting strip is connected to one end of the support plate away from the bracket.

[0011] Beneficial effects: The automatic locking mechanism for the spray bar of this utility model places the spray bar in the support groove of the support plate. The shape of the support groove is consistent with the cross-section of the spray bar, which can prevent the spray bar from moving back and forth; the nozzle is inserted into the limiting hole, which can prevent the spray bar from sliding left and right; the pressure block presses on the spray bar, which can prevent the spray bar from jumping up and down; thus, the spray bar is locked and fixed. Attached Figure Description

[0012] Appendix Figure 1 A schematic diagram showing the spray bar placed on the support groove;

[0013] Appendix Figure 2 This is a schematic diagram of a connecting strip that curves upwards in an arc. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] As attached Figures 1 to 2 The aforementioned automatic locking mechanism for a spray boom includes a bracket 1 with two support plates 2 arranged opposite each other on the bracket 1. Each support plate 2 is a vertical plate, and its upper edge has a support groove 4 for supporting a spray boom 3. A swingable pressure block 5, which is a weight, is provided on one side of each support plate 2. The pressure block 5 can swing upwards away from the support groove 4 to prevent it from blocking the groove 4, thus allowing the spray boom 3 to be placed into the groove 4. After the spray boom 3 is placed into the groove 4, the pressure block 5 can swing downwards to press down on the spray boom 3. Due to the weight of the pressure block 5, the spray boom 3 is less likely to jump out of the groove 4 due to external influences.

[0016] A connecting strip 6 is provided between the two support plates 2, with each end of the connecting strip 6 connected to one of the two support plates 2. The connecting strip 6 is located below the support groove 4, and a limiting hole 7 is formed on the connecting strip 6. Multiple nozzles 8 are distributed along the length of the spray rod 3, and the diameter of the limiting hole 7 is slightly larger than the outer diameter of the nozzle 8. When the spray rod 3 is placed in the support groove 4, the nozzles 8 on the spray rod 3 are inserted into the limiting hole 7. The limiting hole 7 limits the spray rod 3, preventing it from sliding within the support groove 4.

[0017] As attached Figure 1 As shown in the diagram, in this invention, the shape of the support groove 4 is consistent with the cross-section of the spray rod 3, which can prevent the spray rod 3 from moving back and forth; the nozzle 8 is inserted into the limiting hole 7, which can prevent the spray rod 3 from sliding left and right; the pressure block 5 presses on the spray rod 3, which can prevent the spray rod 3 from jumping up and down. Thus, the spray rod 3 is fixed.

[0018] The pressure block 5 is provided with a pressure groove 9 below it. The pressure groove 9 can swing down with the pressure block 5 to lock onto the spray bar 3. Both the support groove 4 and the pressure groove 9 are arc-shaped, and the two can cooperate to clamp the spray bar 3.

[0019] To facilitate the insertion of the nozzle 8 into the limiting hole 7, the outer diameter of the limiting hole 7 is slightly larger than the outer diameter of the nozzle 8. However, this also causes the spray bar 3 to sway slightly left and right within the support groove 4.

[0020] To solve the above problems, at least two limiting holes 7 are provided on the connecting strip 6. The connecting strip 6 is an elastic structural component, and the spacing between the different limiting holes 7 will change with the elastic deformation of the connecting strip 6, while the spacing between the different nozzles 8 on the spray bar 3 is fixed. Therefore, after each nozzle 8 is inserted into its respective limiting hole 7, at least two limiting holes 7 can press against the nozzle 8 in the opposite direction with the elastic deformation of the connecting strip 6, thereby preventing the spray bar 3 from swaying left and right in the support groove 4. Assuming that the connecting strip 6 is elastically elongated, the opposite sides of the hole walls on the two limiting holes 7 will press against the nozzle 8 together. Assuming that the connecting strip 6 is elastically contracted, the opposite sides of the hole walls on the two limiting holes 7 will press against the nozzle 8 together.

[0021] As attached Figure 2 As shown, before the spray bar 3 is placed on the support plate 2, the connecting strip 6 has an upwardly curved arc structure, and each end of the arc of the connecting strip 6 has at least one limiting hole 7. In one embodiment, each end of the arc of the connecting strip 6 has one limiting hole 7. After the spray bar 3 is placed into the support groove 4, the spray bar 3 placed on the support groove 4 will press the upwardly curved connecting strip 6 to become straight, so that the limiting holes 7 at both ends of the connecting strip 6 move away from each other and press against the nozzle 8, thereby preventing the spray bar 3 from wobbling left and right in the support groove 4.

[0022] As attached Figure 1 As shown, the two support plates 2 are located between the two pressure blocks 5, and the pressure blocks 5 are positioned adjacent to the support plates 2. When the upward-curved connecting strip 6 is pressed to a near-straight position, the two support plates 2 move away from each other and adhere to the pressure blocks 5. Specifically, when the pressure blocks 5 are not yet pressed onto the spray bar 3, the weight of the spray bar 3 is insufficient to straighten the connecting strip 6 alone, and a certain gap remains between the support plates 2 and the pressure blocks 5. As both pressure blocks 5 swing downward, when both pressure blocks 5 simultaneously press onto the spray bar 3, the combined weight of the spray bar 3 and the two pressure blocks 5 straightens the connecting strip 6, causing the support plates 2 to adhere tightly to the pressure blocks 5. This increases the friction between the pressure blocks 5 and the support plates 2, making it less likely for the pressure blocks 5 to swing upward when subjected to external force, thus maintaining the pressure blocks 5 on the spray bar 3 and providing a better locking effect on the spray bar 3.

[0023] Therefore, the curved connecting strip 6 has two functions after being straightened: first, it makes the limiting holes 7 at both ends of the connecting strip 6 move away from each other, so that the limiting holes 7 at both ends of the connecting strip 6 press against the nozzle 8 in the opposite direction, preventing the spray bar 3 from swaying left and right on the support plate 2; second, it makes the support plate 2 stick tightly to the pressure block 5, increasing the friction between the support plate 2 and the pressure block 5, making it less likely for the pressure block 5 to swing upward under the action of external force.

[0024] As attached Figure 1 In one embodiment shown, the pressure block 5 is hinged to one end of the support plate 2 near the bracket 1, and the connecting strip 6 is connected to one end of the support plate 2 away from the bracket 1. Since the hinge position of the pressure block 5 and the connection position of the connecting strip 6 are located on both sides of the support plate 2, if the spray bar 3 is not placed in the support groove 4, there will be a gap between the pressure block 5 and the support plate 2 when the pressure block 5 swings down alone.

[0025] In another embodiment, the pressure block 5 can also be directly hinged to the bracket 1, so there will also be a gap between the pressure block 5 and the support plate 2.

[0026] In practical applications, this invention can be used on road maintenance and cleaning vehicles, but is not limited to this application. The bracket 1 is fixed to the vehicle body. When the spray bar 3 needs to be fixed, the pressure block 5 is first manually swung upwards. Then, the spray bar 3 is placed in the support groove 4 of the support plate 2, and the nozzle 8 on the spray bar 3 is inserted into the corresponding limiting hole 7. Then, the pressure block 5 swings downwards under gravity and presses against the spray bar 3. Under the combined gravity of the spray bar 3 and the two pressure blocks 5, the upward-curved connecting strip 6 is straightened, thereby pressing the wall of the limiting hole 7 against the nozzle 8, preventing the spray bar 3 from moving left and right, and making the support plate 2 adhere tightly to the pressure plate, increasing the friction between the pressure plate and the support plate 2. This achieves the locking of the spray bar 3.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An automatic locking mechanism for a spray bar, characterized in that: The system includes a bracket (1), on which two support plates (2) are arranged opposite each other. The upper edge of the support plate (2) is provided with a support groove (4) for supporting the spray bar (3). A swingable pressure block (5) is provided on one side of the support plate (2). The pressure block (5) can swing up away from the support groove (4) or swing down to press on the spray bar (3). A connecting strip (6) is provided between the two support plates (2). The connecting strip (6) is located below the support groove (4). A limiting hole (7) is provided on the connecting strip (6). When the spray bar (3) is placed in the support groove (4), the nozzle (8) on the spray bar (3) is inserted into the limiting hole (7).

2. The automatic locking mechanism for a spray bar according to claim 1, characterized in that: A pressure groove (9) is provided below the pressure block (5), and the pressure groove (9) can swing down with the pressure block (5) and be fastened to the spray bar (3).

3. The automatic locking mechanism for a spray bar according to claim 1, characterized in that: The connecting strip (6) is provided with at least two limiting holes (7). The connecting strip (6) is an elastic structural component, and at least two limiting holes (7) can press against the nozzle (8) in the opposite direction with the elastic deformation of the connecting strip (6).

4. The automatic locking mechanism for a spray bar according to claim 3, characterized in that: The connecting strip (6) is an upward-curved arc structure, and each end of the arc of the connecting strip (6) has at least one limiting hole (7); the spray bar (3) placed on the support groove (4) presses the upward-curved connecting strip (6) to be relatively straight, so that the limiting holes (7) at both ends of the connecting strip (6) move away from each other until they press against the nozzle (8).

5. The automatic locking mechanism for a spray bar according to claim 4, characterized in that: The two support plates (2) are located between the two pressure blocks (5), and the pressure blocks (5) are arranged adjacent to the support plates (2); when the upward-curved connecting strip (6) is pressed to be nearly straight, the two support plates (2) move away from each other and adhere to the pressure blocks (5).

6. The automatic locking mechanism for a spray bar according to claim 5, characterized in that: When the pressure block (5) is not pressed on the spray bar (3), the weight of the spray bar (3) is insufficient to straighten the connecting strip (6) on its own, and there is a gap between the support plate (2) and the pressure block (5); when the two pressure blocks (5) are pressed on the spray bar (3) at the same time, the weight of the spray bar (3) and the two pressure blocks (5) together straighten the connecting strip (6), so that the support plate (2) is close to the pressure block (5).

7. The automatic locking mechanism for a spray bar according to claim 5, characterized in that: The pressure block (5) is hinged to one end of the support plate (2) near the bracket (1), and the connecting strip (6) is connected to one end of the support plate (2) away from the bracket (1).

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