A curing agent observation mirror for glass steel pipeline production

Abstract

The utility model relates to glass steel production technical field especially relates to a kind of curing agent observation sight mirror for glass steel pipeline production, to solve the technical problem of curing agent flow monitoring inconvenience, high cost, specifically including the top cover and bottom cover of horizontal arrangement, the upper joint of the middle part of top cover is connected with the curing agent input pipeline, the lower joint of the middle part of bottom cover is connected with the curing agent output pipeline, the inside of upper joint and lower joint is all provided with the fluid passage for liquid curing agent, the four corners of top cover and bottom cover are respectively provided with coaxial corresponding connecting hole, every two coaxial connecting holes are all commonly provided with the fastening bolt of fixed top cover and bottom cover, the utility model is forced curing agent to form stable liquid level in observation cavity by the glass cover of vertical arrangement and the misplacement design of liquid inlet cylinder and liquid outlet cylinder, curing agent liquid level can be directly judged whether curing agent is normally transported by operator observation, avoid the product quality problem caused by not timely discovery due to flow break.

Description

Technical Field

[0001] This utility model relates to the field of fiberglass production technology, and in particular to a curing agent observation mirror for fiberglass pipe production. Background Technology

[0002] In the production of fiberglass reinforced plastic (FRP) pipes, the curing of the resin matrix is ​​a crucial step in ensuring the pipe's strength. A small amount of curing agent needs to be added to the resin to initiate the cross-linking reaction. However, because curing agents typically have high viscosity or are prone to crystallization, they are highly susceptible to blockage or flow interruption during transportation. Once the curing agent supply is interrupted, the resin will not be able to cure fully, severely affecting the mechanical properties and durability of the FRP pipes, and may even cause the entire batch of products to be scrapped.

[0003] Currently, the industry has limited methods for monitoring the flow status of curing agents. Some companies rely on manual experience to judge the flow of curing agents by observing the sounds of equipment operation, but this method is highly subjective and inaccurate. In addition, a few high-end production lines use electronic flow meters or automated control systems, but these solutions are costly and have strict requirements for the installation environment, making them difficult to popularize in small and medium-sized fiberglass production enterprises. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a curing agent observation mirror for the production of fiberglass pipes that is simple in structure, low in cost, and can intuitively display the flow state of the curing agent, in order to overcome the shortcomings of the existing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A sight glass for observing curing agents used in the production of fiberglass pipes, characterized by:

[0007] It includes a horizontally arranged top cover and bottom cover. The top cover has an upper connector in the middle that connects to the curing agent inlet pipe, and the bottom cover has a lower connector in the middle that connects to the curing agent outlet pipe. Both the upper and lower connectors have fluid channels for the liquid curing agent to pass through. The top cover and bottom cover have coaxial corresponding connection holes at their four corners, and fastening bolts for fixing the top cover and bottom cover are inserted into every two coaxial connection holes.

[0008] A cylindrical glass cover is vertically installed between the top cover and the bottom cover. The two ends of the glass cover abut against the top cover and the bottom cover respectively to form a seal. An observation chamber for observing the flow status of the curing agent is set inside the glass cover. A liquid outlet cylinder that is sealed and connected to the fluid channel of the upper connector is vertically installed at the top of the observation chamber. A liquid inlet cylinder that is sealed and connected to the fluid channel of the lower connector is vertically installed at the bottom of the observation chamber. There is a horizontal offset distance between the axis of the liquid outlet cylinder and the axis of the liquid inlet cylinder.

[0009] The technical problem to be solved by this utility model can be further achieved through the following steps: the top surface of the liquid outlet cylinder is integrally connected to the bottom surface of the upper connector, and the bottom surface of the liquid inlet cylinder is integrally connected to the top surface of the lower connector.

[0010] The technical problem to be solved by this utility model can be further achieved through the following steps: the top surface of the upper connector is provided with an upper threaded interface that connects to the end of the curing agent input pipe, and the bottom surface of the upper threaded interface is connected to the fluid channel of the upper connector; the bottom surface of the lower connector is provided with a lower threaded interface that connects to the end of the curing agent output pipe, and the top surface of the lower threaded interface is connected to the fluid channel of the lower connector.

[0011] The technical problem to be solved by this utility model can be further achieved through the following steps: the top cover is threadedly connected to the upper connector, and the bottom cover is threadedly connected to the lower connector; a sealing gasket I is provided between the top cover and the upper connector, and between the bottom cover and the lower connector.

[0012] The technical problem to be solved by this utility model can be further achieved through the following steps: both ends of the glass cover are provided with positioning protrusions extending outward, and the bottom surface of the top cover and the top surface of the bottom cover are respectively provided with positioning grooves that cooperate with the positioning protrusions.

[0013] The technical problem to be solved by this utility model can be further achieved through the following steps: a sealing gasket II is provided between each positioning protrusion and the positioning groove.

[0014] The technical problem to be solved by this utility model can be further achieved through the following steps: an L-shaped mounting plate is fixedly provided on the same side of the top cover and the bottom cover respectively. The mounting plate includes a horizontal connecting part and a vertical connecting part. The horizontal connecting part is provided with a mounting hole I that cooperates with the fastening bolt, and the vertical connecting part is provided with a mounting hole II that cooperates with the external bracket.

[0015] The technical problem to be solved by this utility model can be further achieved through the following steps: both the upper and lower connectors are provided with a spare channel communicating with the fluid channel, and the end of the spare channel is threaded with a sealing plug.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] (1) By using a vertically set glass cover and staggered inlet and outlet cylinders, the curing agent is forced to form a stable liquid surface in the observation chamber. Operators can directly judge whether the curing agent is being delivered normally by observing the liquid surface of the curing agent, thus avoiding product quality problems caused by failure to detect flow interruption in time.

[0018] (2) The top cover, bottom cover and glass cover adopt a modular quick-release structure. The four corner bolts are fastened and the positioning protrusions and positioning grooves are matched to ensure the overall sealing and make the installation positioning more accurate and convenient. This not only avoids the risk of leakage caused by assembly errors, but also effectively reduces maintenance time and labor costs, and solves the problem of complex maintenance of high-end equipment such as electronic flow meters. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0021] Figure 3 This is a front structural sectional view of the present invention (the rectangular dotted-dash frame in the figure is a partially enlarged portion).

[0022] In the diagram: 1. Top cover; 2. Bottom cover; 3. Upper connector; 4. Lower connector; 5. Fluid channel; 6. Fastening bolt; 7. Glass cover; 8. Observation chamber; 9. Liquid outlet cylinder; 10. Liquid inlet cylinder; 11. Upper threaded interface; 12. Lower threaded interface; 13. Sealing gasket I; 14. Positioning protrusion; 15. Sealing gasket II; 16. Mounting plate; 161. Horizontal connection part; 162. Vertical connection part; 1621. Mounting hole II; 17. Spare channel; 18. Sealing plug. Detailed Implementation

[0023] The specific technical solutions of this utility model are further described below to enable those skilled in the art to further understand this utility model, without constituting a limitation on its rights.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0025] Please refer to Figure 1-3A sight glass for observing curing agents in the production of fiberglass pipes includes a horizontally arranged top cover 1 and a bottom cover 2. The top cover 1 and the bottom cover 2 have the same structure and each has an opening in the middle. The opening of the top cover 1 is provided with an upper connector 3 that communicates with the curing agent input pipe, and the opening of the bottom cover 2 is provided with a lower connector 4 that communicates with the curing agent output pipe. The upper connector 3 and the lower connector 4 are both provided with fluid channels 5 for the liquid curing agent to pass through. The four corners of the top cover 1 and the bottom cover 2 are respectively provided with coaxial corresponding connecting holes, and fastening bolts 6 for fixing the top cover 1 and the bottom cover 2 are passed through each pair of coaxial connecting holes.

[0026] A cylindrical glass cover 7 is vertically installed between the top cover 1 and the bottom cover 2. The two ends of the glass cover 7 abut against the top cover 1 and the bottom cover 2 respectively and form a seal. An observation chamber 8 for observing the flow status of the curing agent is set inside the glass cover 7. The observation chamber 8 is defined by the inner circumferential surface of the glass cover 7, the bottom surface of the upper connector 3 and the top surface of the lower connector 4. A liquid outlet cylinder 9 is vertically installed at the top of the observation chamber 8 and is sealed to the fluid channel 5 of the upper connector 3. A liquid inlet cylinder 10 is vertically installed at the bottom of the observation chamber 8 and is sealed to the fluid channel 5 of the lower connector 4. The axis of the liquid outlet cylinder 9 and the axis of the liquid inlet cylinder 10 are offset in the horizontal direction. That is, the liquid outlet cylinder 9 and the liquid inlet cylinder 10 are misaligned to prevent the liquid curing agent from flowing out of the liquid outlet cylinder 9 and falling directly into the liquid inlet cylinder 10, which would increase the difficulty of observation for the staff.

[0027] In the above structure, the top surface of the liquid outlet cylinder 9 is integrally connected to the bottom surface of the upper connector 3, and the bottom surface of the liquid inlet cylinder 10 is integrally connected to the top surface of the lower connector 4. Thus, the liquid outlet cylinder 9 and the fluid channel 5 of the upper connector 3 form a seal, and the liquid inlet cylinder 10 and the fluid channel 5 of the lower connector 4 form a seal. At the same time, the inlet of the liquid inlet cylinder 10 is always higher than the top surface of the lower connector 4, and the curing agent needs to accumulate in the observation chamber 8 until it submerges the inlet of the liquid inlet cylinder 10 before it can flow out, thereby forming a stable liquid surface that can be directly observed.

[0028] To facilitate connection with external pipelines, the top surface of the upper connector 3 is provided with an upper threaded interface 11 that connects to the end of the curing agent input pipeline, and the bottom surface of the upper threaded interface 11 is connected to the fluid channel 5 of the upper connector 3; the bottom surface of the lower connector 4 is provided with a lower threaded interface 12 that connects to the end of the curing agent output pipeline, and the top surface of the lower threaded interface 12 is connected to the fluid channel 5 of the lower connector 4.

[0029] To improve the overall sealing performance of the device, the top cover 1 is threaded to the upper connector 3, and the bottom cover 2 is threaded to the lower connector 4; sealing gaskets I13 are provided between the top cover 1 and the upper connector 3, and between the bottom cover 2 and the lower connector 4.

[0030] To facilitate precise positioning during installation, both ends of the glass cover 7 are provided with positioning protrusions 14 extending outwards, and the bottom surface of the top cover 1 and the top surface of the bottom cover 2 are respectively provided with positioning grooves that cooperate with the positioning protrusions 14.

[0031] In the above structure, to avoid leakage of curing agent due to installation errors, a sealing gasket II15 is provided between each positioning protrusion 14 and the positioning groove.

[0032] To facilitate fixing to the external bracket, L-shaped mounting plates 16 are fixedly installed on the same side of the top cover 1 and the bottom cover 2 respectively. The mounting plate 16 includes a horizontal connecting part 161 and a vertical connecting part 162. The horizontal connecting part 161 is provided with a mounting hole I that cooperates with the fastening bolt 6, and the vertical connecting part 162 is provided with a mounting hole II1621 that cooperates with the external bracket.

[0033] To improve the reliability of the device, both the upper connector 3 and the lower connector 4 are equipped with a spare channel 17 that communicates with the fluid channel 5. The end of the spare channel 17 is threaded with a sealing plug 18. The spare channel 17 is connected in parallel with the fluid channel 5. When the fluid channel 5 is blocked, the sealing plug 18 is opened, and the curing agent can flow through the spare channel 17.

[0034] [Working Principle]

[0035] During installation, the vertical connecting part 162 of the two mounting plates 16 is first fixed to the external bracket through the mounting hole II 1621 to ensure that the sight glass is vertical. Then, the curing agent input pipe is tightened to the upper threaded interface 11 of the upper connector 3, and the curing agent output pipe is tightened to the lower threaded interface 12 of the lower connector 4 to complete the pipe connection.

[0036] In use, the liquid curing agent enters the observation chamber 8 from the input pipe through the fluid channel 5 of the upper connector 3. Due to the height difference between the inlet of the liquid inlet cylinder 10 and the top surface of the lower connector 4, and the staggered arrangement of the liquid outlet cylinder 9 and the liquid inlet cylinder 10, the curing agent forms a stable liquid surface in the observation chamber 8. The operator observes the liquid surface status in real time through the transparent glass cover 7. If the liquid surface fluctuates, it indicates that the curing agent is dripping normally from the upper liquid outlet cylinder 9, and the curing agent delivery pipeline is unobstructed. If the liquid surface is stable without fluctuation, or if the liquid surface rises abnormally, it indicates that part of the pipeline is blocked, and the machine needs to be stopped for inspection.

[0037] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. A sight glass for observing curing agents in the production of fiberglass pipes, characterized in that: It includes a horizontally arranged top cover and bottom cover. The top cover has an upper connector in the middle that connects to the curing agent inlet pipe, and the bottom cover has a lower connector in the middle that connects to the curing agent outlet pipe. Both the upper and lower connectors have fluid channels for the liquid curing agent to pass through. The top cover and bottom cover have coaxial corresponding connection holes at their four corners, and fastening bolts for fixing the top cover and bottom cover are inserted into every two coaxial connection holes. A cylindrical glass cover is vertically installed between the top cover and the bottom cover. The two ends of the glass cover abut against the top cover and the bottom cover respectively to form a seal. An observation chamber for observing the flow status of the curing agent is set inside the glass cover. A liquid outlet cylinder that is sealed and connected to the fluid channel of the upper connector is vertically installed at the top of the observation chamber. A liquid inlet cylinder that is sealed and connected to the fluid channel of the lower connector is vertically installed at the bottom of the observation chamber. There is a horizontal offset distance between the axis of the liquid outlet cylinder and the axis of the liquid inlet cylinder.

2. The sight glass for observing the curing agent in the production of fiberglass pipes according to claim 1, characterized in that: The top surface of the liquid outlet cylinder is integrally connected to the bottom surface of the upper connector, and the bottom surface of the liquid inlet cylinder is integrally connected to the top surface of the lower connector.

3. The sight glass for observing the curing agent in the production of fiberglass pipes according to claim 1, characterized in that: The upper connector has an upper threaded interface facing downwards on its top surface, which connects to the end of the curing agent inlet pipe, and the bottom surface of the upper threaded interface is connected to the fluid channel of the upper connector; the lower connector has a lower threaded interface facing upwards on its bottom surface, which connects to the end of the curing agent outlet pipe, and the top surface of the lower threaded interface is connected to the fluid channel of the lower connector.

4. The sight glass for observing the curing agent in the production of fiberglass pipes according to claim 1, characterized in that: The top cover is threaded to the upper connector, and the bottom cover is threaded to the lower connector; a sealing gasket I is provided between the top cover and the upper connector, and between the bottom cover and the lower connector.

5. The sight glass for observing the curing agent in the production of fiberglass pipes according to claim 1, characterized in that: Both ends of the glass cover are provided with positioning protrusions extending outward, and the bottom surface of the top cover and the top surface of the bottom cover are provided with positioning grooves that cooperate with the positioning protrusions.

6. The sight glass for observing the curing agent in the production of fiberglass pipes according to claim 5, characterized in that: A sealing gasket II is provided between each positioning protrusion and positioning groove.

7. The sight glass for observing the curing agent in the production of fiberglass pipes according to claim 1, characterized in that: The top cover and bottom cover are respectively fixedly provided with L-shaped mounting plates on the same side. The mounting plates include a horizontal connecting part and a vertical connecting part. The horizontal connecting part is provided with mounting holes I that cooperate with fastening bolts, and the vertical connecting part is provided with mounting holes II that cooperate with external brackets.

8. The sight glass for observing the curing agent in the production of fiberglass pipes according to claim 1, characterized in that: Both the upper and lower connectors are equipped with spare channels that communicate with the fluid channel, and the ends of the spare channels are threaded with sealing plugs.

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