CN215992050U

CN215992050U - Trunk injection device

Info

Publication number: CN215992050U
Application number: CN202122359363.2U
Authority: CN
Inventors: 刘洋; 曹晓林; 刘佳; 陈晓芬; 吴罗发; 药林桃; 罗翔; 陈盾
Original assignee: Agricultural Engineering Research Institute Jiangxi Academy Of Agricultural Sciences; Institute of Soil Fertilizer Resources and Environment of Jiangxi Academy of Agricultural Sciences
Current assignee: Agricultural Engineering Research Institute Jiangxi Academy Of Agricultural Sciences; Institute of Soil Fertilizer Resources and Environment of Jiangxi Academy of Agricultural Sciences
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-03-11
Anticipated expiration: 2031-09-27

Abstract

The utility model relates to a forestry injection structure technical field, concretely relates to trunk injection device. The trunk injection device includes: the liquid storage cavity is suitable for containing liquid to be injected; the injection tube is communicated with the liquid storage cavity; the needle tube is fixed or integrally formed at the outer end of the injection tube and is communicated with the injection tube, and the cross section area of the needle tube is smaller than that of the injection tube; and the sealing block is connected to the injection tube in a sealing manner and is suitable for abutting against the end surface of the trunk hole during injection.

Description

Trunk injection device

Technical Field

The utility model relates to a forestry injection structure technical field, concretely relates to trunk injection device.

Background

The trunk pesticide injecting technology is one high selectivity trunk pesticide applying technology, and has the principle of introducing pesticide, nutrient, growth regulator or other matter into the trunk via the transpiration pulling force of the trunk or external pressure to reach the aims of preventing and controlling diseases and pests, replenishing nutrients, correcting deficiency and regulating plant growth. The equipment on which the trunk injection technique relies is the trunk injector, which typically includes an injection gun and an injection needle. When injecting, usually, a drilling machine is used to drill a hole on the trunk, and then the injection needle is inserted into the hole of the trunk to perform injection.

Because the syringe needle will stretch into in the trunk hole, so the diameter in trunk hole can be bigger than the syringe needle, when can leading to the injection like this, leaves the clearance between syringe needle and the trunk hole, and the liquid that injects can pass through outside the clearance flows to the trunk hole, causes the waste of injection liquid, also can cause the pollution to the trunk surface simultaneously.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect that injection liquid can flow out from the trunk hole among the prior art to provide a trunk injection device that can effectively prevent injection liquid outflow.

In order to solve the above technical problem, the utility model provides a pair of trunk injection device, include:

the liquid storage cavity is suitable for containing liquid to be injected;

the injection tube is communicated with the liquid storage cavity;

the needle tube is fixed or integrally formed at the outer end of the injection tube and is communicated with the injection tube, and the cross section area of the needle tube is smaller than that of the injection tube;

and the sealing block is connected to the injection tube in a sealing manner and is suitable for abutting against the end surface of the trunk hole during injection.

Optionally, the sealing block is fixed at the joint position of the needle tube and the injection tube.

Optionally, the method further includes:

the locking piece is fixed on the injection tube and is positioned on one side, close to the liquid storage cavity, of the sealing block, and the position of the locking piece on the injection tube is adjustable;

the sealing block is slidably mounted on the syringe tube, and the retaining member is adapted to abut the sealing block.

Optionally, the locking member is a nut member screwed on the injection tube.

Optionally, the outer surface of the nut member is fixedly connected with at least one handheld portion.

Optionally, the method further includes:

the piston is slidably arranged in the liquid storage cavity and is suitable for pushing the liquid to be injected to be discharged from the liquid storage cavity;

and the driving rod hermetically penetrates through the liquid storage cavity, and one end of the driving rod is fixedly connected with the piston.

Optionally, the driving rod is connected with a linear driving pair.

Optionally, the linear driving pair is a motor screw pair.

Optionally, the method further includes:

and the liquid storage tank is communicated with the part of the liquid storage cavity relatively far away from the driving rod.

Optionally, the method further includes:

and the handle is fixedly connected with the liquid storage cavity or integrally formed.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a trunk injection device is equipped with sealed piece on the injection syringe, and when injecting to the trunk, sealed piece can the butt in trunk hole terminal surface in order to spill over the shutoff of trunk hole, prevents that injection liquid from passing through the clearance between needle tubing and the trunk hole, has saved and has treated injection liquid, and has avoided the pollution to the trunk surface.

2. The sealing block of the trunk injection device provided by the utility model is fixed at the connecting position of the needle tube and the injection tube, the structure is simple, and the cost is low; or but sealed piece slidable mounting compresses tightly the terminal surface in trunk hole through the retaining member with sealed piece during the injection on the injection syringe, owing to can adjust, so the accessible is adjusted and is guaranteed sealed piece and trunk hole's the effect that compresses tightly to guarantee sealed effect.

3. The utility model provides a trunk injection device, actuating lever adopt sharp drive pair to drive, for artifical drive, labour saving and time saving, and the injection volume is easily controlled.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a trunk injection device of the present invention;

fig. 2 is a schematic structural view of another trunk injection device of the present invention.

Description of reference numerals:

1. a liquid storage cavity; 11. a handle; 2. an injection tube; 3. a needle tube; 4. a sealing block; 5. a locking member; 51. a hand-held portion; 6. a piston; 7. a drive rod; 8. a linear driving pair; 9. a liquid storage tank.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Referring to fig. 1-2, the trunk injection device provided in this embodiment includes a liquid storage cavity 1, an injection tube 2, a needle tube 3, and a sealing block 4, and the specific structure is as follows:

the liquid storage cavity 1 is suitable for containing liquid to be injected. The liquid storage cavity 1 can adopt a soft capsule type structure, and injection is carried out through manual extrusion during injection; or made of hard materials such as metal or hard plastics, and the injection can be realized by matching with a driving structure suitable for driving the liquid to be injected to be discharged from the liquid storage cavity 1. Of course, the reservoir chamber 1 needs to be provided with a liquid inlet for the liquid, which is well-known in the art.

And the injection tube 2 is communicated with the liquid storage cavity 1. The injection tube 2 may be of an integral construction or may be a combination of several sections of tubing.

The needle tube 3 is fixed or integrally formed at the outer end of the injection tube 2 and is communicated with the injection tube 2, and the cross section area of the needle tube 3 is smaller than that of the injection tube 2. The connection between the needle tube 3 and the injection tube 2 can be realized by adopting a tube connection structure commonly used in the field, such as sleeving, bonding, welding and the like. It should be noted that if the needle tube 3 and the syringe 2 are connected by another connecting structure, the original syringe 2 and the new connecting structure should be considered as a whole as the syringe 2 in this application, i.e. the needle tube 3 in this application refers to a needle structure only extending into the trunk hole.

And the sealing block 4 is connected to the injection tube 2 in a sealing manner and is suitable for abutting against the end surface of the trunk hole during injection. The sealing block 4 should be made of a material capable of achieving sealing, such as rubber, silicone, etc., as will be clear to those skilled in the art.

The utility model discloses a trunk injection device, through set up sealed piece 4 on injection syringe 2, sealed piece 4 can butt trunk hole's terminal surface when the injection to form an inclosed region between trunk hole, sealed piece 4 and injection syringe 2, avoid the downthehole injection liquid of trunk to spill over through the clearance between trunk hole and needle tubing 3. On one hand, waste of injection liquid can be avoided; on the other hand, the pollution of the trunk surface caused by the overflow of the injection liquid to the trunk surface can be avoided.

Two specific mounting structures of the sealing block 4 are given below:

first, referring to fig. 1, the seal block 4 is fixed at a position where the needle tube 3 and the syringe 2 are connected. The sealing block 4 is pressed on the end surface of the tree trunk hole by means of manual pressure during injection, so that sealing is realized. It will be clear to the skilled person that the sealing block 4 should be flush with the end face of the syringe 2 or slightly protruding from the end face of the syringe 2 so that the compression effect is ensured.

Second, referring to fig. 2, the trunk injection device further includes:

the locking piece 5 is fixed on the injection tube 2 and is positioned on one side, close to the liquid storage cavity 1, of the sealing block 4, and the position of the locking piece 5 on the injection tube 2 is adjustable;

the sealing block 4 is slidably mounted on the syringe 2 and the retaining member 5 is adapted to abut the sealing block 4.

In the second solution, the locking member 5 may be a nut member screwed to the syringe 2, and the movement of the locking member 5 on the syringe 2 is achieved by screwing; or the hoop structure can be adopted, and the locking piece 5 can be detached at any time and then fixed at a proper position again, so that the locking piece 5 can move on the injection tube 2; or other common moving structures can be adopted.

The two schemes can realize the sealing function of the sealing block 4. However, in other embodiments, other structures capable of sealing the sealing block 4 may be adopted, for example: the sealing block 4 is slidably mounted on the syringe 2, and locking structures, such as bolts or the like, are mounted on the sealing block 4, by which locking structures the sealing block 4 is fixed on the syringe 2.

As a further improvement, with reference to fig. 2, the outer surface of the nut member is attached to at least one hand-held portion 51. When the nut piece needs to be adjusted, an operator holds the hand-holding part 51 for adjustment, so that the nut piece is more convenient and labor-saving.

Preferably, referring to fig. 1 and 2, the trunk injection device further comprises:

the piston 6 is slidably arranged in the liquid storage cavity 1 and is suitable for pushing liquid to be injected to be discharged from the liquid storage cavity 1;

and the driving rod 7 hermetically penetrates through the liquid storage cavity 1, and one end of the driving rod is fixedly connected with the piston 6.

Has the following effects: the output of the liquid to be injected is controlled through the movement of the piston 6, and compared with the direct extrusion of the liquid storage cavity 1 or a similar structure, the output efficiency and the output quantity of the injected liquid can be better controlled.

As a further modification, referring to fig. 1 and 2, a linear drive pair 8 is connected to the drive rod 7. The linear driving pair 8 can adopt a linear motor or a motor screw pair or an air cylinder or other common structures, and the specific structural installation belongs to the field which is easy to design. The linear driving pair 8 is preferably a motor-screw pair, which can control the movement of the piston 6 more precisely, thereby controlling the output and speed of the liquid to be injected more accurately.

As a further improvement, referring to fig. 1 and 2, the method further includes:

and the liquid storage tank 9 is communicated with the part of the liquid storage cavity 1 relatively far away from the driving rod 7. The communicating part of the liquid storage tank 9 and the liquid storage cavity 1 can be blocked or opened by the movement of the piston 6. When in actual use, a certain amount of injection liquid can be stored in the liquid storage tank 9, and the communicating part is opened for injection when injection is needed; the communicating part is blocked when injection is not needed. Therefore, if the injection amount is larger, the liquid does not need to be filled for many times, and the injection efficiency is improved. In detail, in order to facilitate the liquid to be injected to smoothly flow out of the liquid storage tank 9, an air vent is arranged at the top of the liquid storage tank 9, so that the air pressure on the upper side and the lower side of the liquid is consistent when the liquid is discharged, and the liquid can enter the liquid storage cavity 1 under the action of gravity. Specifically, an end cover can be arranged at the top of the liquid storage tank 9, so that liquid can be conveniently filled.

and the handle 11 is fixedly connected with the liquid storage cavity 1 or integrally formed. During injection, an operator can hold the handle 11 for injection, so that the injection is more convenient and labor-saving.

As a specific implementation form (adopting the mounting structure of the second sealing block 4), referring to fig. 2, the utility model discloses the use of trunk injection device is as follows:

1) the piston 6 is controlled to move to a proper position, so that the piston 6 can block the communication between the liquid storage tank 9 and the liquid storage cavity 1;

2) filling the liquid storage tank 9 with liquid to be injected;

3) moving the trunk injection device to the appropriate position so that the needle cannula 3 is inserted into the trunk bore and to the appropriate depth;

4) the nut piece is screwed through the hand-held part 51, the sealing block 4 is driven to be close to the trunk hole until the end face of the trunk hole is pressed, and the sealing block 4 is tightly pressed on the end face of the trunk hole by matching with the hand-held force of an operator to finish sealing;

5) the piston 6 is controlled to move to a proper position, so that the piston 6 avoids the communication position, the liquid storage tank 9 is communicated with the liquid storage cavity 1, and liquid to be injected enters the liquid storage cavity 1 from the liquid storage tank 9;

6) the piston 6 is pushed to enable the liquid to be injected to enter the trunk hole through the injection tube 2 and the needle tube 3 in sequence, and injection is completed.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A stem injection device, comprising:

the liquid storage cavity (1) is suitable for containing liquid to be injected;

the injection tube (2) is communicated with the liquid storage cavity (1);

the needle tube (3) is fixed or integrally formed at the outer end of the injection tube (2) and is communicated with the injection tube (2), and the cross section area of the needle tube (3) is smaller than that of the injection tube (2);

and the sealing block (4) is sleeved on the injection pipe (2) in a sealing manner and is suitable for abutting against the end surface of the trunk hole during injection.

2. Trunk injection device according to claim 1, characterized in that the sealing block (4) is fixed in the interface position of the needle tube (3) and the injection tube (2).

3. The trunk injection device of claim 1, further comprising:

the locking piece (5) is fixed on the injection tube (2) and is positioned on one side, close to the liquid storage cavity (1), of the sealing block (4), and the position of the locking piece (5) on the injection tube (2) is adjustable;

the sealing block (4) is slidably mounted on the injection tube (2), and the retaining member (5) is adapted to abut against the sealing block (4).

4. Trunk injection device according to claim 3, characterized in that the locking member (5) is a nut member screwed onto the injection tube (2).

5. Trunk injection device according to claim 4, wherein the outer surface of the nut member is attached with at least one hand grip (51).

6. The trunk injection device of any one of claims 2-5, further comprising:

the piston (6) is slidably arranged in the liquid storage cavity (1) and is suitable for pushing the liquid to be injected to be discharged from the liquid storage cavity (1);

and the driving rod (7) penetrates through the liquid storage cavity (1) in a sealing manner, and one end of the driving rod is fixedly connected with the piston (6).

7. Trunk injection device according to claim 6, characterized in that a linear drive pair (8) is connected to the drive rod (7).

8. Trunk injection device according to claim 7, characterized in that the linear drive pair (8) is a motor-screw pair.

9. The trunk injection device of claim 6, further comprising:

and the liquid storage tank (9) is communicated with the part of the liquid storage cavity (1) relatively far away from the driving rod (7).

10. The trunk injection device of any one of claims 2-5, further comprising:

and the handle (11) is fixedly connected with the liquid storage cavity (1) or integrally formed.