Automatic bait casting device suitable for aquaculture and bait casting method thereof

文档序号:1805093 发布日期:2021-11-09 浏览:21次 中文

阅读说明:本技术 一种适用于水产养殖的自动化投饵设备及其投饵方法 (Automatic bait casting device suitable for aquaculture and bait casting method thereof ) 是由 黄鸿兵 尹思慧 李佳佳 许志强 孔祥华 于 2021-09-16 设计创作,主要内容包括:本发明公开了一种适用于水产养殖的自动化投饵设备及其投饵方法,包括:对称设置在浮力船组上的两个投料机构,浮力船组包括:通过固定架衔接在一起的若干浮力船。投料机构包括:设置在装配箱体内的若干组压料构件和抛料构件,装配箱体上部设置物料箱,物料箱下端面设置下料管。压料构件包括:设置在装配箱体内侧面的安装铰架,安装铰架通过驱动轴连接转动杆,转动杆端部设置上压壳体和下压壳体。抛料构件包括:固定设置在装配箱体下部的抛料筒,抛料筒一端固定设置击发弹簧。通过压料构件将物料压合成球体状,使物料压合成团,物料以球体状进入水面内,能够有效减小水面落料区域,防止由于物料在水与内过度分散,起到水质保护作用。(The invention discloses an automatic bait casting device suitable for aquaculture and a bait casting method thereof, wherein the automatic bait casting device comprises: two of symmetry setting on buoyancy ship group throw material mechanism, buoyancy ship group includes: a plurality of buoyancy boats connected together through a fixing frame. Throw material mechanism and include: the material pressing components and the material throwing components are arranged in the assembly box body, the material box is arranged on the upper portion of the assembly box body, and the material discharging pipe is arranged on the lower end face of the material box. The material pressing component comprises: the installation hinge frame is arranged on the inner side surface of the assembly box body and is connected with the rotating rod through the driving shaft, and the end part of the rotating rod is provided with an upper pressing shell and a lower pressing shell. The throwing material component comprises: the throwing material cylinder is fixedly arranged at the lower part of the assembly box body, and one end of the throwing material cylinder is fixedly provided with a firing spring. The material pressing component presses the materials into a sphere shape, so that the materials are pressed into a ball, and the materials enter the water surface in the sphere shape, thereby effectively reducing the blanking area of the water surface, preventing the materials from being excessively dispersed in water and the water, and playing a role in protecting the water quality.)

1. An automated feeding apparatus suitable for use in aquaculture comprising: two feeding mechanisms symmetrically arranged on the buoyancy boat group are characterized in that,

the buoyant hull assembly comprising: the buoyancy boats are connected together through a fixing frame, two ends of the fixing frame are provided with circular closed buckles, and guide ropes penetrate through the inner sides of the closed buckles;

the feeding mechanism comprises: the material throwing device comprises a plurality of groups of material pressing components and material throwing components, wherein the material pressing components and the material throwing components are arranged in an assembly box body;

the material pressing component comprises: the mounting hinge bracket is arranged on the inner side surface of the assembling box body and is connected with the rotating rod through a driving shaft, and the end part of the rotating rod is provided with an upper pressing shell and a lower pressing shell;

the throwing member includes: the fixed setting is in the throwing feed cylinder of assembly box lower part, throw feed cylinder upper portion and set up and connect the material mouth, throw the fixed percussion spring that sets up in feed cylinder one end, the contact plate is connected to percussion spring one end.

2. An automated feeding device suitable for use in aquaculture according to claim 1, wherein: the lower part of the throwing barrel is provided with a through strip-shaped hole, the lower part of the contact plate is provided with a matching bulge, and the matching bulge is matched with the strip-shaped hole.

3. An automated feeding device suitable for use in aquaculture according to claim 1, wherein: and a conveyor belt is arranged below the throwing material barrel and is connected with the assembling box body through a driving shaft.

4. An automated feeding device suitable for use in aquaculture according to claim 3, wherein: a plurality of unidirectional teeth are arranged on the surface of the conveyor belt in a curve array mode, and the unidirectional teeth are triangular prism-shaped as a whole.

5. An automated feeding device suitable for use in aquaculture according to claim 1, wherein: and an intelligent control valve is arranged at the blanking pipe and used for controlling the opening and closing of the blanking pipe.

6. An automated feeding device suitable for use in aquaculture according to claim 1, wherein: and a silica gel connecting sheet is arranged between the upper pressing shell and the lower pressing shell, and two ends of the silica gel connecting sheet are respectively connected with the bottom of the upper pressing shell and the bottom of the lower pressing shell in a seamless mode.

7. An automated feeding device suitable for use in aquaculture according to claim 1, wherein: the side surface of the contact plate is provided with a spherical groove, and the side surface of the contact plate is provided with a metal layer.

8. An automated feeding device suitable for use in aquaculture according to claim 1, wherein: the inner side surfaces of the upper pressing shell and the lower pressing shell are both provided with water through holes, and the water through holes are connected with a water supply tank through a water supply hose.

9. A method of feeding an automated feeding apparatus suitable for use in aquaculture according to claim 1, comprising the steps of:

step S1: in an initial state, the upper pressing shell and the lower pressing shell are positioned right below the discharging pipe, an opening is formed between the upper pressing shell and the lower pressing shell, materials in the material box fall into the upper pressing shell and the lower pressing shell through the discharging pipe, when the materials fall to a certain amount, the upper pressing shell and the lower pressing shell are driven by the driving motor to be pressed, the materials are pressed into a sphere, water is supplied into the upper pressing shell and the lower pressing shell through the water supply hose, and the surface of the sphere materials is wetted;

step S2: the driving motor drives the upper pressing shell and the lower pressing shell to rotate simultaneously again until the spherical materials fall into the material receiving hopper, the upper pressing shell and the lower pressing shell return to the initial state, at the moment, the second driving motor is triggered to drive the conveying belt to rotate, the one-way teeth are not buckled with the matching bulges any more, under the action of the percussion spring, the contact plate pushes the spherical materials to quickly fly out, and the spherical materials fall into a specific area in a fixed-point mode;

step S3: under the action of no external force, the contact plate is gradually static, the second driving motor drives the conveyor belt to rotate in the reverse direction, the one-way teeth drive the contact plate to extrude the percussion spring through the matching protrusions until the contact plate is located on the inner side of the material receiving port, and the next procedure is prepared.

10. A feeding method for an automated feeding apparatus for aquaculture according to claim 9 wherein: when the conveyor belt rotates along the releasing direction of the elastic potential energy of the firing spring, the speed of the one-way teeth is higher than that of the contact plate.

Technical Field

The invention relates to the technical field of aquaculture equipment, in particular to automatic bait casting equipment suitable for aquaculture and a bait casting method thereof.

Background

Aquaculture is the production activity of breeding, cultivating and harvesting aquatic animals and plants under artificial control. Generally comprises the whole process of cultivating aquatic products from seedlings under artificial feeding management. Also can comprise the multiplication of aquatic resources, and the aquaculture has modes of rough culture, intensive culture, high-density intensive culture and the like. The rough culture is to put seedlings in medium and small natural waters and to culture aquatic products such as fish in lakes and reservoirs, shellfish in shallow seas and the like by completely relying on natural baits. Intensive culture is to culture aquatic products such as pond fish culture, net cage fish culture, fence culture and the like in a small water body by using bait casting and fertilizing methods. The high-density intensive culture adopts methods of flowing water, controlling temperature, increasing oxygen, feeding high-quality baits and the like to carry out high-density culture in a small water body so as to obtain high yield, such as flowing water high-density fish culture, shrimp culture and the like.

The aquaculture throws material equipment among the prior art, because its own structural design is unreasonable, and is inconvenient when using, is difficult to form automatic throw the material step, and, the current equipment design of throwing material is comparatively simple, only sends the material out just can, does not consider the quality of water influence problem completely, especially the bait that does not eat for a long time, causes the pollution of quality of water very easily, like nutrition enrichment scheduling problem, is not friendly to aquaculture.

Disclosure of Invention

The invention overcomes the defects of the prior art and provides an automatic bait casting device suitable for aquaculture and a bait casting method thereof.

In order to achieve the purpose, the invention adopts the technical scheme that: an automated feeding apparatus suitable for use in aquaculture comprising: two of symmetry setting on buoyancy ship group throw material mechanism, buoyancy ship group includes: the buoyancy boat comprises a plurality of buoyancy boats which are connected together through a fixing frame, wherein circular sealing buckles are arranged at two ends of the fixing frame, and guide ropes penetrate through the inner sides of the sealing buckles.

The feeding mechanism comprises: the material throwing device comprises a plurality of groups of material pressing components and material throwing components, wherein the material pressing components and the material throwing components are arranged in an assembly box body, a material box is arranged on the upper portion of the assembly box body, and a material discharging pipe is arranged on the lower end face of the material box.

The material pressing component comprises: the installation hinge frame is arranged on the inner side face of the assembly box body, the installation hinge frame is connected with the rotating rod through the driving shaft, and the end part of the rotating rod is provided with an upper pressing shell and a lower pressing shell.

The throwing member includes: the fixed setting is in the throwing feed cylinder of assembly box lower part, throw feed cylinder upper portion and set up and connect the material mouth, throw the fixed percussion spring that sets up in feed cylinder one end, the contact plate is connected to percussion spring one end.

In a preferred embodiment of the invention, a strip-shaped hole is formed in the lower portion of the throwing barrel, a matching protrusion is arranged on the lower portion of the contact plate, and the matching protrusion is matched with the strip-shaped hole.

In a preferred embodiment of the invention, a conveyor belt is arranged below the throwing barrel and is connected with the assembling box body through a driving shaft.

In a preferred embodiment of the invention, a plurality of unidirectional teeth are arranged on the surface of the conveyor belt in a curved array mode, and the overall unidirectional teeth are triangular prism-shaped.

In a preferred embodiment of the present invention, an intelligent control valve is disposed at the discharging pipe, and the intelligent control valve is used for controlling the opening and closing of the discharging pipe.

In a preferred embodiment of the present invention, a silica gel connecting sheet is disposed between the upper pressing shell and the lower pressing shell, and two ends of the silica gel connecting sheet are respectively connected to the bottom of the upper pressing shell and the bottom of the lower pressing shell in a seamless manner.

In a preferred embodiment of the present invention, the contact plate is provided with a spherical recess on a side surface thereof, and the contact plate is provided with a metal layer on a side surface thereof.

In a preferred embodiment of the present invention, water through holes are formed in the inner side surfaces of the upper pressure casing and the lower pressure casing, and the water through holes are connected to the water supply tank through a water supply hose.

The other technical scheme adopted by the invention is as follows: a method of feeding an automated feeding apparatus suitable for aquaculture, comprising the steps of:

step S1: under the initial state, the upper pressing shell and the lower pressing shell are located under the discharging pipe, an opening is formed between the upper pressing shell and the lower pressing shell, materials in the material box fall into the upper pressing shell and the lower pressing shell through the discharging pipe, when the materials fall to a certain amount, the upper pressing shell and the lower pressing shell are driven by the driving motor to be pressed and combined into a sphere, water is supplied into the upper pressing shell and the lower pressing shell through the water supply hose, and the surface of the sphere materials is wetted.

Step S2: the driving motor drives the rotating upper pressing shell and the lower pressing shell to rotate simultaneously again until the spherical materials fall into the material receiving hopper, the upper pressing shell and the lower pressing shell return to the initial state, at the moment, the second driving motor is triggered to drive the conveying belt to rotate, the one-way teeth are not buckled with the matching protrusions any more, under the action of the trigger spring, the contact plate pushes the spherical materials to fly out quickly, and the spherical materials fall into a specific area in a fixed-point mode.

Step S3: under the action of no external force, the contact plate is gradually static, the second driving motor drives the conveyor belt to rotate in the reverse direction, the one-way teeth drive the contact plate to extrude the percussion spring through the matching protrusions until the contact plate is located on the inner side of the material receiving port, and the next procedure is prepared.

In a preferred embodiment of the invention, the one-way tooth speed is greater than the contact plate speed when the conveyor belt rotates in the direction of release of the spring potential energy of the firing spring.

The invention solves the defects in the background technology, and has the following beneficial effects:

(1) the material pressing component presses the materials into a sphere, so that the materials are pressed into a ball, the later-stage throwing is facilitated, the materials enter the water surface in a sphere shape, the blanking area on the water surface can be effectively reduced, the water pollution caused by excessive dispersion of the materials in water and the water is prevented, and the water quality protection effect is achieved. Meanwhile, water is supplied into the upper pressing shell and the lower pressing shell by the water supply hose to wet the surface of the spherical material, so that the surface viscosity of the spherical material is higher, secondary agglomeration is performed on the spherical material, the state stability of the spherical material is improved, and the spherical material is prevented from being dispersed before falling into water.

(2) The spherical materials are pushed to the water surface in an accelerating way through the percussion spring, the whole accelerating process is mild, the spherical materials can be prevented from being scattered, and on the other hand, the spherical grooves arranged on the side surfaces of the contact plates can be matched with the spherical materials, so that the integral stress area of the spherical materials is enlarged, the spherical materials are further prevented from being scattered, and the water quality protection effect is improved.

(3) According to the invention, the plurality of unidirectional teeth arranged on the surface of the conveyor belt in a curve array mode can drive the matching protrusion to move along the direction of extruding the trigger spring when rotating anticlockwise, so that the contact plate is quickly restored to the state with elastic potential energy, and when rotating clockwise, the speed of the unidirectional teeth is higher than that of the contact plate, so that the release of the elastic potential energy of the trigger spring cannot be influenced, the material can be thrown out at high speed, and the material delivery effect is improved.

(4) According to the invention, the sealing buckle and the guide rope are mutually matched, so that the buoyancy boat group can always run in a certain direction, thereby ensuring that the water area for feeding each time is fixed, and feeding the materials is more accurate. On the other hand, throw material in turn through multiunit material pressing component and throwing the material component, buoyancy ship group can keep transporting all the time and go forward, and not only throw the material more even, simultaneously, has effectively accelerated the efficiency that bait was thrown in.

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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a perspective view of a preferred embodiment of the present invention;

FIG. 2 is a schematic plan view of a preferred embodiment of the present invention;

fig. 3 is a perspective structural view of a feeding mechanism according to a preferred embodiment of the present invention.

Specifically, 110-buoyancy boat, 120-fixing frame, 121-sealing buckle, 122-guiding rope, 130-supporting frame, 140-solar panel,

200-feeding mechanism, 210-assembly box body, 220-material box, 221-discharging pipe, 230-mounting hinge frame, 240-rotating rod, 241-upper pressing shell, 242-lower pressing shell, 243-silica gel connecting sheet, 250-throwing cylinder, 251-receiving hopper, 260-firing spring, 261-contact plate, 270-conveyor belt, 271-one-way tooth and 280-driving motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 by those of ordinary skill in the art through specific situations.

As shown in fig. 1 and 2, an automated feeding device and a feeding method thereof suitable for aquaculture includes: two feeding mechanisms 200 symmetrically arranged on the buoyancy boat 110 group, wherein the buoyancy boat 110 group comprises: the buoyancy boats 110 are connected together through the fixing frame 120, the two ends of the fixing frame 120 are provided with circular sealing buckles 121, and the inner sides of the sealing buckles 121 penetrate through the guide ropes 122. Through mutually supporting between closed buckle 121 and the guide rope 122, can make buoyancy ship 110 group remain certain direction operation throughout to it is fixed to ensure the waters of throwing the material at every turn, makes the feeding of material more accurate.

As shown in fig. 2, the charging mechanism 200 includes: the material pressing and throwing device comprises a plurality of groups of material pressing components and material throwing components which are arranged in an assembly box body 210, wherein a material box 220 is arranged at the upper part of the assembly box body 210, a blanking pipe 221 is arranged on the lower end surface of the material box 220, an intelligent control valve is arranged at the blanking pipe 221, and the opening and the closing of the blanking pipe 221 are controlled through the intelligent control valve.

As shown in fig. 3, the swaging member includes: and a mounting hinge 230 provided on an inner side surface of the mounting case 210, the mounting hinge 230 being connected to a rotation lever 240 by a drive shaft, and an upper pressure case 241 and a lower pressure case 242 being provided at ends of the rotation lever 240. The throwing material component comprises: the material throwing cylinder 250 is fixedly arranged at the lower part of the assembly box body 210, the material receiving port is arranged at the upper part of the material throwing cylinder 250, a firing spring 260 is fixedly arranged at one end of the material throwing cylinder 250, and a contact plate 261 is connected at one end of the firing spring 260.

In a preferred embodiment of the present invention, a silica gel connecting sheet 243 is disposed between the upper pressing shell 241 and the lower pressing shell 242, two ends of the silica gel connecting sheet 243 are respectively connected to the bottom of the upper pressing shell 241 and the bottom of the lower pressing shell 242 in a seamless manner, and are always in a tight state, and the arrangement of the silica gel connecting sheet 243 can ensure that the material falling from the discharging pipe 221 cannot spill out of the upper pressing shell 241 and the lower pressing shell 242, so as to avoid wasting the material, and ensure that the upper pressing shell 241 and the lower pressing shell 242 can press the material into a spherical shape.

In a preferred embodiment of the invention, the material is pressed into a spherical shape by the pressing member, so that the material is pressed into a ball, the material is thrown at a later stage conveniently, the material enters the water surface in a spherical shape, the blanking area of the water surface can be effectively reduced, the water pollution caused by excessive dispersion of the material in water and the interior is prevented, and the water quality protection effect is achieved.

In a preferred embodiment of the present invention, the supporting frame 130 is disposed between the two assembly boxes 210, the solar cell panel 140 is disposed on the supporting frame 130, and the solar cell panel 140 is directly used as a power source, so that energy is saved and the use is more convenient; on the other hand, the material receiving funnel 251 is arranged at the material receiving opening, and the material receiving funnel 251 is arranged right below the material pressing member, so that the spherical material can be ensured to smoothly fall to the material throwing barrel 250;

in a preferred embodiment of the present invention, the upper pressure shell 241 and the lower pressure shell 242 are provided with water through holes on their inner surfaces, the water through holes are connected to a water supply tank through a water supply hose, and water is supplied into the upper pressure shell 241 and the lower pressure shell 242 through the water supply hose to wet the surface of the spherical material, so that the surface viscosity of the spherical material is higher, the spherical material is agglomerated twice, the stability of the spherical material state is improved, and the spherical material is prevented from being dispersed before falling into water.

In a preferred embodiment of the invention, the spherical material is pushed to the water surface by the trigger spring 260 in an accelerated manner, the whole acceleration process is relatively mild, the spherical material can be prevented from scattering, on the other hand, a strip-shaped hole is formed in the lower part of the material throwing cylinder 250, a matching protrusion is formed in the lower part of the contact plate 261, and the matching protrusion and the strip-shaped hole are matched with each other, so that the matching protrusion moves along the strip-shaped hole in a fixed route, and the contact plate 261 is ensured to accurately push the spherical material to finish the material throwing.

In a preferred embodiment of the present invention, a conveyor belt 270 is disposed below the material throwing cylinder 250, the conveyor belt 270 is connected to the assembly box 210 through a drive shaft, a plurality of unidirectional teeth 271 are disposed on the surface of the conveyor belt 270 in a curved array manner, and the unidirectional teeth 271 are generally triangular prism-shaped; through the plurality of one-way teeth 271 arranged on the surface of the conveyor belt 270 in a curved array manner, when the conveyor belt rotates counterclockwise, the matching protrusions can be driven to move in the direction of extruding the firing spring 260, so that the contact plate 261 is quickly restored to a state with elastic potential energy.

In a preferred embodiment of the present invention, the contact plate 261 is provided with a spherical groove on the side surface thereof, and the spherical groove provided on the side surface of the contact plate 261 can be matched with the spherical material, so as to increase the overall stressed area of the spherical material, further prevent the spherical material from scattering and improve the water quality protection effect. And the side surface of the contact plate 261 is provided with a metal layer, and the side surface of the contact plate 261 is provided with the metal layer, so that the spherical materials are prevented from being adhered to the contact plate 261, and the spherical materials are smoothly thrown out.

In a preferred embodiment of the invention, the buoyancy boat 110 can always keep transporting forward by alternately feeding a plurality of groups of pressing members and throwing members, so that the feeding is more uniform, and the efficiency of bait feeding is effectively accelerated.

When the material pressing device is used, in an initial state, the upper pressing shell 241 and the lower pressing shell 242 are positioned under the discharging pipe 221, an opening is formed between the lower pressing shells 242 of the upper pressing shell, materials in the material box 220 fall into the upper pressing shell 241 and the lower pressing shell 242 through the discharging pipe 221, when the materials fall to a certain amount, the lower pressing shell 241 and the lower pressing shell 242 are driven by the driving motor 280 to be pressed and combined, the materials are pressed into a sphere shape, water is supplied into the upper pressing shell 241 and the lower pressing shell 242 through the water supply hose, and the surface of the sphere-shaped materials is wetted; the driving motor 280 drives the upper pressing shell 241 and the lower pressing shell 242 to rotate at the same time again until the spherical materials fall into the material receiving funnel 251, the upper pressing shell 241 and the lower pressing shell 242 return to the initial state, at the moment, the second driving motor 280 is triggered to drive the conveyor belt 270 to rotate, the one-way tooth 271 is not buckled with the matching protrusion any longer, under the action of the firing spring 260, the contact plate 261 pushes the spherical materials to quickly fly out of the material throwing cylinder 250, and the spherical materials fall into a specific area in a fixed point manner; under the action of no external force, the contact plate 261 is gradually static, the second driving motor 280 drives the conveyor belt 270 to rotate in the reverse direction, the one-way tooth 271 drives the contact plate 261 to extrude the firing spring 260 through the matching protrusion until the contact plate 261 is located on the inner side of the material receiving opening, and the next procedure is prepared.

It should be noted that, when the conveyor belt 270 rotates along the releasing direction of the elastic potential energy of the firing spring 260, that is, when the conveyor belt 270 rotates clockwise, the speed of the one-way tooth 271 is greater than that of the contact plate 261, which does not affect the releasing of the elastic potential energy of the firing spring 260, and ensures that the material can be thrown out at a high speed, thereby improving the material delivering effect.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

10页详细技术资料下载
上一篇:一种医用注射器针头装配设备
下一篇:一种高密度养殖循环系统

网友询问留言

已有0条留言

还没有人留言评论。精彩留言会获得点赞!

精彩留言,会给你点赞!