Pipeline preheating constant-temperature box
By designing a pipeline preheating constant temperature box and using a combination of electric heater and fan to maintain constant temperature heating, the problem of easy cracking or retraction of the pipeline joints for automotive carbon canister expansion at room temperature is solved, improving the hole expansion efficiency and quality, and reducing production costs.
Patent Information
- Application Number
- CN202521070041.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-28
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2035-05-28
AI Technical Summary
The pipe joint ends for automotive carbon canisters are prone to cracking or retracting when reaming at room temperature, which affects the quality and efficiency of the plugging, and is laborious.
A pipeline preheating constant temperature box is designed to maintain the constant temperature of the heating chamber through a combination of electric heater and fan, and to adapt to heating of pipeline joints made of different plastic materials to ensure the stability of the hole expansion.
The stable hole expansion of pipeline joints is achieved, cracking and retraction is avoided, the hole expansion efficiency and quality is improved, and the production cost is reduced.
Smart Images

Figure CN223085225U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of processing equipment for pipelines used in automotive carbon cans, and particularly relates to a pipeline preheating constant temperature box. Background Art
[0002] The pipeline used in the automotive carbon can is made of plastic, and its connection method with the automotive carbon can and other accessories of the automotive carbon can is plugging. When plugging, it is necessary to ream the joint end of the pipeline to facilitate plugging. If reaming is directly carried out without heating, the joint end of the pipeline is likely to crack. Even if it does not crack, reaming is relatively laborious, and after reaming, the aperture is likely to retract within a short time, seriously affecting plugging. Content of the Utility Model
[0003] The purpose of the utility model is to solve the problems existing in reaming the joint end of the pipeline used in the automotive carbon can at normal temperature, and to provide a pipeline preheating constant temperature box. The utility model can heat the joint of the pipeline used in the automotive carbon can made of different plastic materials according to the set temperature. The electric controller can keep the heating chamber at a constant temperature. The joint of the pipeline used in the automotive carbon can after heating is particularly convenient for reaming. The joint after reaming has a stable shape, will not crack or retract, improves the reaming efficiency and reaming quality, and thus reduces the production cost.
[0004] The technical solution of the utility model:
[0005] A pipeline preheating constant temperature box includes an outer box body, an inner box body, a fan fixing hole plate, an electric fan, a wind guide cylinder, a heater fixing hole plate, an electric heater, a heat dissipation partition plate, a sliding cover, a slideway and an electric controller. The fan fixing hole plate is fixed at the inner bottom of the outer box body. The heater fixing hole plate is fixed in the outer box body above the fan fixing hole plate. An air inlet hole is provided in the outer box body between the fan fixing hole plate and the heater fixing hole plate. The electric heater is arranged on the heater fixing hole plate. The electric fan is arranged on the fan fixing hole plate corresponding to the electric heater. The wind guide cylinder is arranged between the electric fan and the electric heater. The inner box body is arranged in the outer box body and is located on the heater fixing hole plate. The gap between the inner box body and the outer box body is filled with a heat insulation layer. A heat dissipation partition plate with heat dissipation holes is arranged in the inner box body. The heat dissipation partition plate is located above the electric heater. Slideways are arranged on the front and rear sides of the top of the inner box body. The sliding cover is slidably arranged in the slideways. The electric controller is arranged on the outer side of the outer box body. The space between the heat dissipation partition plate and the sliding cover is the heating chamber. The electric fan and the electric heater are electrically connected to the electric controller. The electric controller is electrically connected to the power supply. The electric controller can control the temperature of the heating chamber and keep it at a constant temperature. The electric controller is prior art.
[0006] The sliding cover is composed of a left sliding cover, a middle sliding cover and a right sliding cover. A middle partition plate is vertically fixed at the bottom of the middle sliding cover. The right sliding cover has a jack, and a cover plate is covered on the jack. The cover plate is hinged to the right sliding cover and can be opened or closed.
[0007] A heat sensor protective cover is provided on the side wall of the inner box body of the heating chamber for protecting the heat sensor of the electric controller.
[0008] Working process of the present utility model:
[0009] The electric heater is powered on to work, the electric fan is powered on to work, air enters from the air inlet hole of the outer box body, passes through the electric fan, is heated by the electric heater through the air guide cylinder, and then enters the heating chamber. The part of the pipe of the automotive carbon canister to be reamed is inserted into the heating chamber through the opened sliding cover or the opened cover plate for heating. When the number of pipes of the automotive carbon canister is large, directly slide open the sliding cover and insert it for use. When the number of pipes of the automotive carbon canister is small, only open the cover plate and insert it for use. The electric controller can keep the heating chamber at a constant temperature.
[0010] The heat insulation layer filled in the gap between the inner box body and the outer box body can isolate heat transfer, save energy and prevent scalding of the human body.
[0011] Advantages of the present utility model:
[0012] The present utility model can heat at a set temperature according to the joints of pipes of automotive carbon canisters made of different plastic materials. The electric controller can keep a constant temperature. The joints of the pipes of the automotive carbon canister after heating are particularly convenient for reaming. The formed joints after reaming are stable and will not crack or retract, improving the reaming efficiency and reaming quality, and thus reducing the production cost. Description of the drawings
[0013] Figure 1 is a three-dimensional schematic diagram of the present utility model;
[0014] Figure 2 is a perspective three-dimensional schematic diagram of the present utility model;
[0015] Figure 3 is a perspective three-dimensional schematic diagram of the present utility model from another perspective;
[0016] Figure 4 is a perspective three-dimensional schematic diagram of the present utility model from yet another perspective;
[0017] Figure 5 is a partial sectional three-dimensional schematic diagram of the present utility model;
[0018] Figure 6 is a perspective three-dimensional schematic diagram of the present utility model with the outer box body hidden;
[0019] Figure 7 is an exploded view of the present utility model. Detailed implementation manners
[0020] Such as Figures 1 to 7As shown in the figure, a pipeline preheating constant temperature box includes an outer box body 1, an inner box body 2, a fan fixing hole plate 3, an electric fan 4, a wind guide cylinder 5, a heater fixing hole plate 6, an electric heater 7, a heat dissipation partition plate 8, a sliding cover 9, a slideway 10 and an electric controller 11. The fan fixing hole plate 3 is fixed to the inner bottom of the outer box body 1. The heater fixing hole plate 6 is fixed inside the outer box body 1 above the fan fixing hole plate 3. An air inlet hole 13 is provided in the outer box body 1 between the fan fixing hole plate 3 and the heater fixing hole plate 6. Four electric heaters 7 are arranged on the heater fixing hole plate 6. An electric fan 4 is arranged on the fan fixing hole plate 3 corresponding to each electric heater 7. A wind guide cylinder 5 is arranged between the electric fan 4 and the electric heater 7. The inner box body 2 is arranged inside the outer box body 1 and is located on the heater fixing hole plate 6. The space between the inner box body 2 and the outer box body 1 is filled with a heat insulation layer 14. A heat dissipation partition plate 8 is arranged inside the inner box body 2. The heat dissipation partition plate 8 has heat dissipation holes 19. The heat dissipation partition plate 8 is located above the electric heater 7. Slideways 10 are arranged on the front and rear sides of the top of the inner box body 2. The sliding cover 9 is slidably arranged in the slideways 10. The electric controller 11 is arranged outside the outer box body 1. The space between the heat dissipation partition plate 8 and the sliding cover 9 is a heating chamber 20. The electric fan 4 and the electric heater 7 are electrically connected to the electric controller 11. The electric controller 11 is electrically connected to a power supply. The electric controller 11 can control the temperature of the heating chamber 20 and keep it constant. The said electric controller 11 is a prior art.
[0021] The said sliding cover 9 is composed of a left sliding cover 15, a middle sliding cover 16 and a right sliding cover 17. A middle partition plate 12 is vertically fixed to the bottom of the middle sliding cover 16. The right sliding cover 17 has a jack, and a cover plate 18 is covered on the jack. The cover plate 18 is hinged to the right sliding cover 17 and can be opened or closed.
[0022] A heat sensor protection cover 21 is arranged on the side wall of the inner box body 2 of the heating chamber 20 for protecting the heat sensor of the electric controller 11.
[0023] The working process of this embodiment:
[0024] The electric heater 7 is powered on to work, and the electric fan 4 is powered on to work. Air enters from the air inlet hole 13 of the outer box body 1, passes through the electric fan 4, is heated by the electric heater 7 through the wind guide cylinder 5 and then enters the heating chamber 20. The part of the pipeline to be reamed of the carbon canister for automobiles to be heated is inserted into the heating chamber 20 through the opened sliding cover 9 or the opened cover plate 18 for heating. When the number of pipelines for carbon canisters of automobiles is large, directly slide open the sliding cover 9 and insert them for use. When the number of pipelines for carbon canisters of automobiles is small, only open the cover plate 18 and insert them for use. The electric controller 11 can keep the heating chamber 20 at a constant temperature.
[0025] The heat insulation layer 14 filled in the space between the inner box body 2 and the outer box body 1 can isolate heat transfer, save energy and prevent scalding of the human body.
Claims
1. A pipeline preheating constant temperature box, characterized in that: It includes an outer box body (1), an inner box body (2), a fan fixing hole plate (3), an electric fan (4), a wind guide tube (5), a heater fixing hole plate (6), an electric heater (7), a heat dissipation partition plate (8), a sliding cover (9), a slideway (10) and an electric controller (11). The fan fixing hole plate (3) is fixed on the inner bottom of the outer box body (1), and the heater fixing hole plate (6) is fixed inside the outer box body (1) above the fan fixing hole plate (3). An air inlet hole (13) is formed in the outer box body (1) between the fan fixing hole plate (3) and the heater fixing hole plate (6). The electric heater (7) is arranged on the heater fixing hole plate (6), the electric fan (4) is arranged on the fan fixing hole plate (3) corresponding to the electric heater (7), and the wind guide tube (5) is arranged between the electric fan (4) and the electric heater (7). The inner box body (2) is arranged inside the outer box body (1) and is located on the heater fixing hole plate (6). The space between the inner box body (2) and the outer box body (1) is filled with a heat insulation layer (14). A heat dissipation partition plate (8) is arranged inside the inner box body (2), and the heat dissipation partition plate (8) is located above the electric heater (7). Slideways (10) are arranged on the front and rear sides of the top of the inner box body (2), and the sliding cover (9) is slidably arranged in the slideways (10). The electric controller (11) is arranged on the outer side of the outer box body (1). The space between the heat dissipation partition plate (8) and the sliding cover (9) is a heating chamber (20). The electric fan (4) and the electric heater (7) are electrically connected to the electric controller (11), and the electric controller (11) is electrically connected to a power supply.
2. The preheating and constant temperature box for pipeline according to claim 1, wherein: The heat dissipation partition plate (8) has heat dissipation holes (19).
3. The pipeline preheating constant temperature box according to claim 1, wherein: The sliding cover (9) is composed of a left sliding cover (15), a middle sliding cover (16) and a right sliding cover (17). A middle partition plate (12) is vertically fixed at the bottom of the middle sliding cover (16); the right sliding cover (17) has a jack, and a cover plate (18) covers the jack. The cover plate (18) is hinged to the right sliding cover (17) and can be opened or closed.
4. The pipeline preheating constant temperature box according to claim 1, characterized in that: A heat sensor protection cover (21) is arranged on the side wall of the inner box body (2) of the heating chamber (20) for protecting the heat sensor of the electric controller (11).