CN210929169U

CN210929169U - Handrail upright post for arc-shaped handrail tube on aquaculture net cage

Info

Publication number: CN210929169U
Application number: CN201921568587.0U
Authority: CN
Inventors: 陆国泰
Original assignee: Guangdong Liansu Technology Industrial Co Ltd
Current assignee: Guangdong Liansu Technology Industrial Co Ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-07-07
Anticipated expiration: 2029-09-19

Abstract

The utility model discloses a handrail upright post for an arc handrail tube on a culture net cage, which comprises an upright post main body, a fixed column arranged at one end of the upright post main body and a sleeve arranged on the upright post main body and used for fixing the arc handrail tube; the intersection line of any radial section of the sleeve and the inner wall of the sleeve is a circle, and the centers of any three circles are positioned on the same straight line; the inner diameter of the sleeve pipe is gradually increased from the middle part to the two ends. The utility model provides a contact mode that handrail stand's inside pipe wall and arc handrail pipe are close to one side at camber center is the cambered surface contact, and area of contact is bigger, can alleviate handrail stand to handrail pipe's pressure to alleviate handrail pipe and warp. In addition, by improving the structures of the main body and the fixed columns of the handrail upright post, the mold opening mode of the handrail upright post injection mold is changed, the number of loose cores of the mold is reduced, the manufacturing cost of the injection mold is greatly reduced, and the production efficiency is also greatly improved.

Description

Handrail upright post for arc-shaped handrail tube on aquaculture net cage

Technical Field

The utility model relates to a aquaculture net case technical field, more specifically relates to a handrail stand that is used for aquaculture net case to go up arc handrail pipe.

Background

The culture net cage has the advantages of low investment, high yield, maneuverability and quick response, and is widely used in China and all over the world. The water surface part of the aquaculture net cage comprises a net cage support, wherein foot plates for people to walk are arranged on the net cage support, and handrail upright posts and handrail pipes fixed through the handrail upright posts are further arranged on the net cage support.

In the prior art, the handrail upright post for the aquaculture net cage disclosed in chinese patent 201520547810.9 is generally adopted, as shown in fig. 1, a column body of the handrail upright post is a hollow structure provided with three pairs of mounting holes, and handrail pipes are inserted into the mounting holes of the column body. The mounting hole of the handrail upright post is in point contact or line contact with the handrail tube, the contact area is small, and the contact position of the handrail tube and the handrail upright post is easy to deform under the action of external force. When the handrail tube is arc-shaped, if the handrail tube of the circular net cage needs to be bent into a circle along with the buoyancy tube in the net cage support, the stress on one side of the handrail tube close to the curvature center is larger, and the contact position of the handrail tube and the mounting hole of the handrail upright post is easy to deform and damage the handrail tube.

Therefore, it is necessary to develop a handrail pillar that can reduce deformation of the handrail tube.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome above-mentioned prior art arc handrail pipe less with handrail stand area of contact, the easy defect that warp of handrail pipe, provide a handrail stand that is used for aquaculture net case to go up arc handrail pipe, the handrail stand that provides is great with one side area of contact that arc handrail pipe is close to the camber center, can alleviate handrail stand to handrail pipe's pressure to alleviate handrail pipe and warp.

In order to solve the technical problem, the utility model discloses a technical scheme is:

a handrail upright post for an arc handrail tube on a culture net cage comprises an upright post main body, a fixing column arranged at one end of the upright post main body and a sleeve arranged on the upright post main body and used for fixing the arc handrail tube;

the intersection line of any radial section of the sleeve and the inner wall of the sleeve is a circle, and the centers of any three circles are positioned on the same straight line; the inner diameter of the sleeve pipe is gradually increased from the middle part to the two ends.

When the handrail tube is the arc handrail tube, for example, the handrail tube of the circular net cage needs to be bent into a circle along with the buoyancy tube in the net cage support, the contact mode of the inner wall of the sleeve of the handrail upright post and one side of the arc handrail tube close to the curvature center is arc surface contact, the contact area of the arc surface contact is large, the pressure of the handrail upright post on the handrail tube can be relieved, and therefore the deformation of the handrail tube is reduced, and the circular net cage handrail tube is superior to the two-point contact of the existing handrail upright post and the handrail tube.

Preferably, the intersection line of any axial section of the sleeve and the inner wall of the sleeve is a circular arc line.

Preferably, the upright post main body comprises a main body frame, the fixing column is arranged at one end of the main body frame, the sleeve is fixed in the main body frame, and the opening direction of the sleeve is the same as that of the main body frame.

Preferably, the main frame is composed of four frame strips connected end to end in sequence, and the surfaces of the frame strips and the sleeve are flat and have no holes.

At the moment, the injection molding of the stand column main body does not need to adopt a mold to loose cores, the opening and closing mold can be directly adopted for injection molding, the mold opening mode of the handrail stand column injection mold is changed, the mold loose cores are reduced, the manufacturing cost of the injection mold is greatly reduced, and the production efficiency is also greatly improved.

Preferably, the sleeve is a cylindrical sleeve.

Preferably, the sleeve is fixed in the main body frame through a reinforcing rib.

Preferably, the fixing column is of a hollow cylindrical structure, and an annular bulge is arranged on the surface of the fixing column. When the hollow cylindrical structure is used for injection molding, the injection mold generally needs to adopt a mold for core pulling.

Preferably, the fixing column is a grid structure with the opening direction the same as that of the main frame, the grid structure comprises a plurality of grid plates, and the surfaces of the grid plates are flat and have no holes.

At this moment, the fixed column can also be directly injected by adopting an opening and closing die, so that the whole handrail upright post injection mold can be injected by adopting the opening and closing die, the core pulling of the mold is not needed any more, the injection mold is further simplified, the manufacturing cost is further reduced, and the production efficiency is further improved.

Preferably, the handrail upright is integrally formed by injection molding.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a contact mode that handrail stand's inside pipe wall and arc handrail pipe are close to one side at camber center is the cambered surface contact, and the area of contact of cambered surface contact is bigger, can alleviate handrail stand to the pressure of handrail pipe to alleviate handrail pipe and warp, be superior to the two point contact of current handrail stand and handrail pipe.

In addition, by improving the structure of the main body of the middle upright post of the handrail upright post, the mold opening mode of the handrail upright post injection mold is changed, the number of loose cores of the mold is reduced, the manufacturing cost of the injection mold is greatly reduced, and the production efficiency is also greatly improved. Still through the structure of further improvement handrail stand mid-mounting post, make injection mold further simplify, the cost of manufacture further reduces, production efficiency further improves.

Drawings

Fig. 1 is a schematic view of a prior art handrail upright.

Fig. 2 is a schematic view of an injection mold of a handrail upright post in the prior art.

Fig. 3 is a schematic view of a handrail column according to embodiment 1 of the present invention.

Fig. 4 is a front view of a handrail column according to embodiment 1 of the present invention.

Fig. 5 is an axial sectional view of the handrail pillar middle sleeve according to embodiment 1 of the present invention.

Fig. 6 is a schematic view of the handrail upright post fixing arc-shaped handrail tube according to embodiment 1 of the present invention.

Fig. 7 is a schematic view of an injection mold for a handrail pillar according to embodiment 1 of the present invention.

Fig. 8 is a schematic view of a handrail column according to embodiment 2 of the present invention.

Fig. 9 is a schematic view of an injection mold for a handrail pillar according to embodiment 2 of the present invention.

Detailed Description

The present invention will be further described with reference to the following embodiments.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, the description is merely for convenience and simplicity of description, and it is not intended to indicate or imply that the devices or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, the terms describing the positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

Furthermore, if the terms "first," "second," and the like are used for descriptive purposes only, they are used for mainly distinguishing different devices, elements or components (the specific types and configurations may be the same or different), and they are not used for indicating or implying relative importance or quantity among the devices, elements or components, but are not to be construed as indicating or implying relative importance.

Example 1

A handrail upright post for an arc handrail tube on a culture net cage is shown in figures 3-5 and comprises an upright post main body 1, a fixing post 2 arranged at one end of the upright post main body 1 and a sleeve 3 arranged on the upright post main body 1 and used for fixing the arc handrail tube 4; the intersection line of any radial section of the sleeve 3 and the inner wall of the sleeve 3 is a circle, and the centers of any three circles are positioned on the same straight line; the inner diameter of the sleeve 3 gradually increases from the middle to both ends. The sleeve 3 is a cylindrical sleeve. The intersection line of any axial section of the sleeve 3 and the inner wall of the sleeve 3 is a circular arc line.

The stand main part 1 includes main part frame 11, and fixed column 2 sets up in 11 one ends of main part frame, and sleeve pipe 3 passes through strengthening rib 12 to be fixed in main part frame 11, and sleeve pipe 3's opening direction is the same with main part frame 11's opening direction. The main frame 11 is composed of four frame strips 1101 connected end to end in sequence, and the surfaces of the frame strips 1101 and the sleeve 3 are flat and have no holes. The handrail upright post is formed by integral injection molding.

The fixing column 2 is of a hollow cylindrical structure, and an annular bulge 21 is arranged on the surface of the fixing column 2. When the hollow cylindrical structure is used for injection molding, the injection mold generally needs to adopt a mold for core pulling.

When injection molding is performed, in the prior art, a front mold M1, a rear mold M2, a first mold core pulling M3 and a second mold core pulling M4 are required, the first mold core pulling M3 is used for injection molding of a fixing column, and the second mold core pulling M4 is used for injection molding of a hollow column main body, as shown in fig. 2. However, the handrail upright of the embodiment only needs to use the front mold M1, the rear mold M2 and the first mold core pulling M3, as shown in fig. 7, the first mold core pulling M3 is used for injection molding of the fixing column, and the upright body only needs the front mold M1 and the rear mold M2, and does not need the second mold core pulling M4.

When the handrail tube is an arc handrail tube, for example, the handrail tube of the circular net cage needs to be bent into a circle along with the buoyancy tube in the net cage support, as shown in fig. 6, the contact mode of the inner wall of the sleeve 3 of the handrail upright post and one side of the arc handrail tube 4 close to the curvature center is arc surface contact, the contact area of the arc surface contact is large, the pressure of the handrail upright post on the handrail tube can be relieved, and therefore the deformation of the handrail tube is reduced, and the arc net cage is superior to the two-point contact of the existing handrail upright post and the handrail tube.

The injection molding of stand main part need not to adopt the mould to loose core in this embodiment, can directly adopt the mould that opens and shuts to mould plastics, has changed handrail stand injection mold's die sinking mode, has reduced the mould and has loosed the core, makes injection mold's cost of manufacture reduce greatly, and production efficiency also improves greatly.

Example 2

The embodiment does the utility model discloses a second embodiment that is used for the handrail stand of last arc handrail pipe of aquaculture net case, different with embodiment 1 is that fixed column 2 is the same grid structure of opening direction and main part frame opening direction, and the grid structure includes a plurality of check boards 22, and check board 22 surfacing aporate, as shown in fig. 8.

When injection molding is performed, as shown in fig. 9, the handrail upright of the embodiment only needs to use the front mold M1 and the rear mold M2, and does not need the first mold core pulling M3 and the second mold core pulling M4.

In this embodiment, the fixed column mould plastics also can directly adopt the mould that opens and shuts to mould plastics for whole handrail stand injection mold can adopt the mould that opens and shuts to mould plastics, no longer need adopt the mould to loose the core, makes injection mold further simplify, and the cost of manufacture further reduces, and production efficiency further improves.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. 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. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A handrail upright post for an arc handrail tube on a culture net cage is characterized by comprising an upright post main body (1), a fixing post (2) arranged at one end of the upright post main body (1) and a sleeve (3) arranged on the upright post main body (1) and used for fixing the arc handrail tube;

the intersection line of any radial section of the sleeve (3) and the inner wall of the sleeve (3) is a circle, and the centers of any three circles are positioned on the same straight line; the inner diameter of the sleeve (3) is gradually increased from the middle part to the two ends.

2. The handrail upright according to claim 1, characterized in that the intersection line of any axial section of the bushing (3) with the inner wall of the bushing (3) is a circular arc line.

3. The handrail upright according to claim 1 or 2, wherein the upright main body (1) comprises a main body frame (11), the fixing column (2) is arranged at one end of the main body frame (11), the sleeve (3) is fixed in the main body frame (11), and the opening direction of the sleeve (3) is the same as that of the main body frame (11).

4. The handrail upright according to claim 3, characterized in that the main body frame (11) is formed by four frame strips (1101) connected end to end in sequence, the surfaces of the frame strips (1101) and the sleeves (3) being flat and non-porous.

5. Armrest post according to claim 4, characterized in that the sleeve (3) is fixed in the body frame (11) by means of a reinforcement (12).

6. The handrail upright according to claim 4, characterized in that the fixing post (2) is a hollow cylinder structure, and the surface of the fixing post (2) is provided with an annular bulge (21).

7. The handrail upright of claim 4, wherein the fixing post (2) is a grid structure with the opening direction identical to that of the main body frame (11), the grid structure comprises a plurality of grid plates (22), and the surface of each grid plate (22) is flat and has no holes.