Dragging device of backpack sprayer

Abstract

The utility model discloses a dragging device of a knapsack sprayer, which comprises a bottom plate, a base plate, a dragging device and a dragging device, and trundles are arranged at the bottom of the bottom plate; the clamping assembly comprises a clamping cavity fixedly formed in the bottom of the bottom plate, a first clamping arm, a second clamping arm and a locking device arranged on the clamping cavity, wherein the first clamping arm and the second clamping arm are arranged in the clamping cavity in a penetrating mode and extend towards the two ends of the clamping cavity respectively. The first clamping arm and the second clamping arm extend to form clamping parts used for clamping the backpack sprayer respectively. The first clamping arm is provided with a first rack, the second clamping arm is provided with a second rack, and the first rack and the second rack can be driven by the locking device to form an engaged state so that the clamping assembly can stably assemble the bottom plate to the backpack sprayer. The dragging device is simple in structure, the knapsack sprayer can be conveniently moved in a labor-saving mode by dragging the dragging device under the condition that the knapsack sprayer is filled with liquid medicine, and the situation that fatigue is prone to occurring due to the fact that the sprayer is carried on the back for a long time is avoided.

Description

Technical Field

[0001] The utility model relates to the field of sprayers, in particular to a towing device for a backpack sprayer. Background Art

[0002] A backpack sprayer is a device that uses air suction to turn medicine or other liquids into mist and sprays them evenly onto other objects. In many environments, a backpack sprayer is an indispensable and important device for preventing pests.

[0003] Most traditional backpack sprayers are backpack-type, so that they can disinfect pests more conveniently. For example, patent announcement number CN117324170A discloses a backpack sprayer, which specifically discloses that it includes a box body, a shoulder strap for wearing is arranged on one side wall of the box body, a water pump for extracting liquid medicine is arranged inside the box body, a spray rod is arranged on the box body, the interior of the spray rod is hollow, one end of the spray rod is arranged with a nozzle for atomizing liquid medicine, the other end of the spray rod is arranged with a water pipe, and the water pipe is connected to the water pump; a plug-in block is arranged at a position corresponding to the spray rod on the side wall of the box body, the plug-in block is hollow inside and is connected with the inside of the box body, a one-way interface is opened on the plug-in block, the one-way interface is arranged corresponding to the shape of the nozzle, a one-way piece is arranged at the one-way interface, the one-way piece is movably connected in the plug-in block, the one-way piece has a tendency to move toward the one-way interface and the one-way piece blocks the one-way interface, and when the nozzle extends into the one-way interface, the one-way piece is pushed to open the one-way interface.

[0004] Although the above structure can solve the technical problem of easy operation by providing a strap for wearing on one side wall of the box; however, the existing backpack sprayer weighs about 35KG-45KG when filled with liquid medicine. When workers need to move the sprayer and perform disinfection operations, the weight of the sprayer is relatively heavy, and carrying the sprayer for a long time is prone to fatigue.

[0005] Therefore, it is necessary to further improve the prior art. Utility Model Content

[0006] In view of the problems existing in the above prior art, the purpose of the utility model is to provide a towing device for a backpack sprayer. The utility model has a simple structure and is convenient for moving the backpack sprayer more labor-savingly by dragging the towing device when the backpack sprayer is full of liquid medicine, thereby avoiding fatigue caused by carrying the backpack sprayer for a long time.

[0007] In order to achieve the above purpose, the technical solution of the utility model is:

[0008] A towing device for a backpack sprayer comprises: a base plate, wherein a caster is provided at the bottom of the base plate; a clamping assembly, comprising a clamping cavity fixedly arranged at the bottom of the base plate, a first clamping arm and a second clamping arm which are inserted into the clamping cavity and extend to two ends of the clamping cavity respectively, and a locking device arranged on the clamping cavity; the first clamping arm and the second clamping arm are respectively formed with clamping parts for clamping the backpack sprayer after being extended; a first rack is provided on the first clamping arm, and a second rack is provided on the second clamping arm, and the first rack and the second rack can be driven by the locking device to form a meshing state, so that the clamping assembly can stably assemble the base plate to the backpack sprayer, so that the backpack sprayer can be moved more labor-savingly by dragging the towing device when it is full of liquid medicine.

[0009] Furthermore, the first rack and the second rack are provided with a convex tooth and a tooth groove for meshing on one side thereof. Through the above arrangement, the first clamp arm and the second clamp arm can be locked and fixed to ensure the stability of the bottom plate assembly.

[0010] Furthermore, a guide groove for accommodating the first clamp arm and the second clamp arm is provided along the left-right direction of the clamping cavity, a through hole connected to the guide groove is provided on the clamping cavity, and the locking device passes through the through hole and pushes the first clamp arm to move in the direction of the second clamp arm, so that the first clamp arm and the second clamp arm are locked and fixed. Through the above arrangement, the first clamp arm and the second clamp arm can be locked and fixed to each other through the push of the locking device, so that the assembly structure is simple and the operation is convenient.

[0011] Furthermore, the locking device and the through hole are threadedly connected.

[0012] Furthermore, a plurality of fixing legs are provided on the edge of the clamping cavity for fixing the clamping cavity to the bottom plate, and each of the fixing legs is fixed to the bottom plate by screws. Through the above arrangement, the clamping cavity can be stably mounted on the bottom plate.

[0013] Furthermore, the clamping portion has an upwardly inclined bending shape after being extended, so that after the two clamping portions clamp the backpack sprayer, the backpack sprayer can be clamped stably and firmly.

[0014] Furthermore, the side of the bottom plate close to the human body is extended upward to form a baffle, and a groove is provided on the baffle. Through the above arrangement, the baffle can improve the comfort during use, and the groove is provided on the baffle, so that the groove can be used to fix the traction belt (such as a pull rope) to assist the towing device in towing.

[0015] Furthermore, the clamping assembly is made of metal material, so that the structure is more solid and durable, and has a longer service life.

[0016] Furthermore, the bottom plate is made of plastic material, which makes the structure lighter and can effectively reduce its weight.

[0017] Furthermore, the caster is a universal caster. Through the above arrangement, the caster can be rotated in multiple directions, thereby achieving more convenient dragging.

[0018] The beneficial effects of the utility model are:

[0019] (i) The utility model uses a locking device to control the first clamp arm and the second clamp arm to lock and fix the backpack sprayer. The structure is simple and the bottom plate can be conveniently assembled to the bottom of the backpack sprayer. In addition, the first rack and the second rack are in a meshing state, which can make the bottom plate assembly more stable.

[0020] (ii) The utility model provides a base plate and casters on the base plate on the backpack sprayer, so that the backpack sprayer can be dragged during use to achieve a more labor-saving moving method, thereby avoiding the problem of fatigue caused by carrying the backpack sprayer for a long time due to its heavy weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the assembly of the bottom plate and the backpack sprayer of the utility model;

[0022] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 3 It is a schematic diagram of the structure of the clamping assembly of the utility model;

[0024] Figure 4 It is an exploded schematic diagram of the overall structure of the utility model;

[0025] Figure 5 It is a schematic diagram of the engagement state of the first clamp arm and the second clamp arm of the utility model;

[0026] Figure 6 The utility model Figure 5 A magnified view of point A in the figure;

[0027] Figure 7 is a schematic diagram of a knapsack sprayer.

[0028] Reference numerals

[0029] 1. Bottom plate; 11. Baffle; 12. Groove;

[0030] 2. Casters;

[0031] 3. Clamping assembly; 31. Clamping cavity; 310. Guide groove; 311. Through hole; 312. Fixed support foot; 32. First clamping arm; 320. First rack; 33. Second clamping arm; 330. Second rack; 34. Clamping part; 35. Locking device; 36. Protruding tooth; 37. Tooth groove;

[0032] 4. Knapsack sprayer. DETAILED DESCRIPTION

[0033] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments. The following description is only exemplary and does not limit the protection scope of the utility model.

[0034] like Figure 1-Figure 6 As shown, a towing device for a backpack sprayer comprises: a base plate 1, and a caster 2 is arranged at the bottom of the base plate 1; wherein the caster 2 is a universal caster, so that the moving direction can be adjusted more conveniently during the towing process; in order to make the structure lighter, the base plate 1 is made of plastic material. Figure 1 and Figure 7 It can be seen that adding a towing device to the backpack sprayer 4 can save more effort and effectively reduce fatigue caused by the excessive weight of the backpack sprayer 4 itself.

[0035] like Figure 1-Figure 6 As shown, the clamping assembly 3 includes a clamping cavity 31 fixed to the bottom of the base plate 1, a first clamping arm 32 and a second clamping arm 33 penetrating the clamping cavity 31 and extending to both ends of the clamping cavity 31 respectively, and a locking device 34 arranged on the clamping cavity 31.

[0036] like Figure 1-Figure 6 As shown, the first clamping arm 32 and the second clamping arm 33 are extended to form clamping parts 34 for clamping the knapsack sprayer; specifically, the clamping parts 34 are bent upward after being extended, so that the two clamping parts 34 can keep the knapsack sprayer 4 stable and firm after they are matched to clamp the knapsack sprayer 4. In this embodiment, after the two clamping parts 34 are extended upward from the edges of the bottom ends of the knapsack sprayer 4, the clamping parts 34 and the edges of the knapsack sprayer 4 are in a clamping state, so that the two clamping parts 34 can fix the knapsack sprayer 4 on the bottom plate 1.

[0037] like Figure 4-Figure 6As shown, the first clamp arm 32 is provided with a first rack 320, and the second clamp arm 33 is provided with a second rack 330. The first rack 320 and the second rack 330 can be driven by the locking device 35 to form a meshing state, so that the clamping assembly 3 can firmly assemble the bottom plate 1 to the backpack sprayer. Specifically, the first rack 320 and the second rack 330 are respectively provided with a convex tooth 36 and a tooth groove 37 for meshing on the side opposite to each other. In this embodiment, the first rack 320 and the second rack 330 have two states, such as a disengaged state and a meshed state. In the disengaged state, the first clamp arm 32 and the second clamp arm 33 do not contact each other, and the first clamp arm 32 and the second clamp arm 33 are telescopically moved, so that the clamping parts 34 on the first clamp arm 32 and the second clamp arm 33 can adapt to backpack sprayers 4 of different specifications; in the meshed state, the convex teeth 36 on the first rack 320 and the tooth grooves 37 on the second rack 330 are meshed with each other, and the tooth grooves 37 on the first rack 320 and the convex teeth 36 on the second rack 330 are meshed with each other, so that the two clamping parts 34 can prevent the problem of tooth disengagement after clamping the backpack sprayer 4, and the bottom plate 1 can be stably assembled on the backpack sprayer 4.

[0038] like Figure 4 As shown, in order to form a meshing state between the first rack 320 and the second rack 330, it is necessary to drive through the locking device 35; specifically, a guide groove 310 for accommodating the first clamp arm 32 and the second clamp arm 33 is provided along the left and right directions of the clamping cavity 31, and a through hole 311 connected to the guide groove 310 is provided on the clamping cavity 31. The locking device 35 passes through the through hole 311 and pushes the first clamp arm 32 to move in the direction of the second clamp arm 33, so that the first rack 320 and the second rack 330 are meshed, and then the first clamp arm 32 and the second clamp arm 33 are locked and fixed through the mutual meshing of the first rack 320 and the second rack 330. In this embodiment, the locking device 35 and the through hole 311 are threadedly connected, and preferably, the locking device 35 is a bolt.

[0039] like Figure 3 As shown, a plurality of fixing legs 312 are provided on the edge of the clamping cavity 31 for fixing the clamping cavity 31 to the bottom plate 1, and each fixing leg 312 is fixed to the bottom plate 1 by screws. Through the above arrangement, the clamping cavity 31 can be stably mounted on the bottom plate 1.

[0040] In order to make the clamping assembly 3 more sturdy and durable, the clamping assembly 3 is made of metal material.

[0041] like Figure 1-Figure 6As shown, the side of the bottom plate 1 close to the human body is extended upward to form a baffle 11, and a groove 12 is provided on the baffle 11. Through the above arrangement, the baffle 11 can effectively improve the comfort during use. In addition, the groove 12 is provided on the baffle 11, so that the groove 12 can be used to fix the traction belt (such as a drawstring) to assist the towing device in towing.

[0042] Combination Figure 1-Figure 6 , the specific use principle of the utility model is introduced below to facilitate understanding of the utility model:

[0043] First, the first clamp arm 32 and the second clamp arm 33 are respectively inserted into the clamping cavity 31, so that the clamping parts 34 on the first clamp arm 32 and the second clamp arm 33 are respectively engaged with the edges of the backpack sprayer 4, and then the first clamp arm 32 is pushed toward the second clamp arm 33 by rotating the locking device 35, so that the first clamp arm 32 is engaged with the second clamp arm 33, so as to achieve the purpose of fixing the bottom plate 2 to the bottom of the backpack sprayer 4.

[0044] The above is the operation method of fixing the bottom plate 1 to the backpack sprayer 4. The structure is simple and the operation is relatively convenient.

[0045] At the same time, casters 4 are provided on the bottom plate 2, so that the backpack sprayer 4 can be dragged to achieve a more labor-saving movement when in use, so as to avoid fatigue caused by the weight of the backpack sprayer 4 after carrying it for a long time.

[0046] The present invention is not limited to the above-mentioned embodiments. If various changes or modifications to the present invention do not depart from the spirit and scope of the present invention, and if these changes and modifications fall within the claims of the present invention and the scope of equivalent technologies, the present invention is also intended to include these changes and modifications.

Claims

1. A towing device for a backpack sprayer, characterized in that: include: A base plate, wherein casters are provided at the bottom of the base plate; A clamping assembly, comprising a clamping cavity fixedly arranged at the bottom of the base plate, a first clamping arm and a second clamping arm penetrating the clamping cavity and extending to two ends of the clamping cavity respectively, and a locking device arranged on the clamping cavity; The first clamp arm and the second clamp arm are extended to form clamping portions for clamping a backpack sprayer; The first clamp arm is provided with a first rack, and the second clamp arm is provided with a second rack. The first rack and the second rack can be driven by the locking device to form a meshing state, so that the clamping assembly can stably assemble the base plate to the backpack sprayer, so that the backpack sprayer can be moved more labor-savingly by dragging the towing device when it is full of liquid medicine.

2. The towing device for a backpack sprayer according to claim 1, characterized in that: A convex tooth and a tooth groove for meshing are respectively provided on one side of the first rack opposite to the second rack.

3. The towing device for a backpack sprayer according to claim 1, characterized in that: A guide groove for accommodating the first clamp arm and the second clamp arm is provided along the left and right directions of the clamping cavity, and a through hole connected to the guide groove is provided on the clamping cavity. The locking device passes through the through hole and pushes the first clamp arm to move in the direction of the second clamp arm, so that a locking fixation is formed between the first clamp arm and the second clamp arm.

4. The towing device for a backpack sprayer according to claim 3, characterized in that: The locking device is threadedly connected to the through hole.

5. The towing device for a backpack sprayer according to claim 1, characterized in that: A plurality of fixing legs for fixing the clamping cavity to the bottom plate are arranged on the edge of the clamping cavity, and each of the fixing legs is fixed to the bottom plate by a screw.

6. The towing device for a backpack sprayer according to claim 1, characterized in that: The clamping portion has an upwardly inclined bending shape after being extended, so that after the two clamping portions clamp the backpack sprayer, the backpack sprayer can be clamped stably and firmly.

7. The towing device for a backpack sprayer according to claim 1, characterized in that: A baffle is formed on one side of the bottom plate close to the human body after extending upwards, and a groove is provided on the baffle.

8. The towing device for a backpack sprayer according to claim 1, characterized in that: The bottom plate clamping assembly is made of metal material.

9. The towing device for a backpack sprayer according to claim 1, characterized in that: The bottom plate is made of plastic material.

10. The towing device for a backpack sprayer according to claim 1, characterized in that: The caster is a universal caster.

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