A foldable carbon fiber electric heater rotating frame

Abstract

The present invention discloses a foldable carbon fiber electric heater rotating frame, comprising a plate body, a first axial hole and a second axial hole are formed on the plate body, two gear racks are arranged on the plate body, and the two gear racks are arranged between the two axial holes; the gear rack comprises a boss portion fixedly connected to the plate body and a shaft rod portion fixedly connected to one end of the boss portion away from the plate body, the outer side of the shaft rod portion is a smooth cylindrical surface, and a threaded hole is arranged at one end of the shaft rod portion away from the plate body; a strip groove is arranged on one side of the plate body away from the gear rack, and the strip groove is located between the two gear racks; the rotating frame also comprises a limit stopper fixed to the plate body outside the first axial hole. The present invention has the advantages of reasonable layout and compact structure in structural design, and can be used to realize the storage function of the electric heater and reduce the space occupied by the electric heater.

Description

Technical Field

[0001] The invention relates to the technical field of electric heaters, and in particular to a foldable carbon fiber electric heater rotating frame. Background Art

[0002] Carbon fiber electric heaters use filament carbon fiber heating elements for heating, which have uniform heat dissipation, fast heating and high efficiency. The rated surface temperature can reach 90℃~100℃ in three minutes. It has strong radiation convection effect and the electric heat conversion rate is more than 98%. Compared with similar products on the market, such as ceramic, heat plate, quartz and oil-filled electric heaters, it saves more than 2 / 3 of electricity. There is no electromagnetic interference and pollution, no dust and no noise during use. Rapid heating: The carbon fiber electric heater heats up immediately after 1 to 2 minutes of heating; Economic: The carbon fiber electric heater is positioned for the general public and is inexpensive. It not only saves money when purchased, but also saves money when used. The electric energy conversion is increased by 30% (relative to metal heating), and the temperature is automatically controlled. However, this electric heater still has some shortcomings. In order to increase the heat dissipation area, its volume is generally large and relatively fixed, and the electric heater takes up more space when stored when not in use. Summary of the invention

[0003] In order to solve the deficiencies of the prior art, the present invention provides a foldable carbon fiber electric heater rotating frame, which can be used to realize the folding function of the electric heater, thereby facilitating the storage of the electric heater when not in use and saving the space occupied by the electric heater. Moreover, when realizing the folding function of the electric heater, it can also achieve accurate control of the rotation angle of the electric heater.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A foldable carbon fiber electric heater rotating frame, including a plate body, a first axial hole and a second axial hole are opened on the plate body, and two gear racks are arranged on the plate body, and the two gear racks are arranged between the two axial holes; the gear rack includes a boss portion fixedly connected to the plate body and a shaft rod portion fixedly connected to an end of the boss portion away from the plate body, the outer side of the shaft rod portion is a smooth cylindrical surface, and a threaded hole is arranged at an end of the shaft rod portion away from the plate body; a strip groove is arranged on a side of the plate body away from the gear rack, and the strip groove is located between the two gear racks; the rotating frame also includes a limit stopper fixed to the plate body outside the first axial hole.

[0006] Furthermore, the limit stopper is in an arc shape, the limit stopper is concentric with the first axial hole, and the central angle corresponding to the limit stopper is not greater than 180 degrees.

[0007] Furthermore, the square of the distance between the end of the limit stopper and the central axis of the gear frame is greater than the sum of the square of the inner diameter of the limit stopper and the square of the distance between the central axis of the gear frame and the center of the first shaft hole.

[0008] Further, the distance between the gear rack close to the first shaft hole and the center of the first shaft hole is equal to the distance between the gear rack close to the second shaft hole and the second shaft hole.

[0009] Furthermore, the two gear racks are both located on a line connecting the center of the first shaft hole and the center of the second shaft hole.

[0010] Furthermore, a longitudinal beam is arranged on the plate body, the height of the longitudinal beam is lower than the height of the boss portion, and the strip groove is arranged in the longitudinal beam.

[0011] Furthermore, the plate body is provided with two convex rings surrounding the outer sides of the first axial hole and the second axial hole.

[0012] Furthermore, the edge of the plate body is provided with reinforcing ribs, and the height of the reinforcing ribs is the same as the height of the convex ring.

[0013] Furthermore, a nail seat is provided at both ends of the longitudinal beam, and a countersunk hole penetrating the upper end of the nail seat and the bottom surface of the plate body is provided in the middle of the nail seat.

[0014] The beneficial effect of the present invention is that the present invention can realize the synchronous folding function of the foldable electric heater by cooperating with the rotating base, so as to facilitate the storage of the electric heater when not in use, reduce the space occupied by the electric heater when not in use, and the present invention can realize accurate control of the rotation angle when realizing the folding function of the electric heater. In addition, the present invention has the advantages of reasonable layout and compact structure in structural design, and it can be integrally formed by injection molding, with a simple manufacturing process and low product cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 is a stereogram of the present invention;

[0017] Figure 2 is a top view of the present invention;

[0018] Figure 3 yes Figure 2 Sectional view along line AA;

[0019] Figure 4 yes Figure 2 Sectional view along line BB;

[0020] Figure 5 is a bottom view of the present invention;

[0021] Figure 6 This is a partial view of the present invention, and the position of the limit stopper in this figure is Figure 1 Different in

[0022] Figure 7 It is a schematic diagram of the present invention when in use, and is used as a main view, showing another structure of the present invention;

[0023] Figure 8 yes Figure 7 Bottom view of

[0024] Fig. 9 yes Figure 7 Cross-sectional view along line CC.

[0025] The following are the descriptions of the reference numerals:

[0026] In the figure: 1, plate body; 2, first axial hole; 3, second axial hole; 4, boss portion; 5, shaft portion; 6, limit stop; 7, nail seat; 8, longitudinal beam; 9, convex ring; 10, reinforcing rib; 11, strip groove; 12, countersunk hole; 13, gear rack; 14, rotating base; 1401, cylindrical boss; 15, incomplete gear; 16, first gear; 17, second gear; 18, third gear. DETAILED DESCRIPTION

[0027] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0028] See also Figure 1-Figure 6 As shown, the present invention provides a foldable carbon fiber electric heater rotating frame, including a plate body 1, wherein a first axial hole 2 and a second axial hole 3 are opened on the plate body 1, and two gear racks 13 are arranged on the plate body 1, and the two gear racks 13 are arranged between the two axial holes; the gear rack 13 includes a boss portion 4 fixedly connected to the plate body 1 and a shaft rod portion 5 fixedly connected to an end of the boss portion 4 away from the plate body 1, the outer side of the shaft rod portion 5 is a smooth cylindrical surface, and a threaded hole is arranged at the end of the shaft rod portion 5 away from the plate body 1; a strip groove 11 is arranged on a side of the plate body 1 away from the gear rack 13, and the strip groove 11 is located between the two gear racks 13; the rotating frame also includes a limit stop block 6 fixed to the plate body 1 outside the first axial hole 2.

[0029] Figures 7 to 91 is a schematic diagram of the use of the present invention. A rotating base 14 is installed at each end of the rotating frame. The cylindrical boss 1401 on the rotating base 14 is inserted into the first shaft hole 2 and the second shaft hole 3 of the rotating frame. An incomplete gear 15 is fixed to the upper end of the cylindrical boss 1401 on one rotating base 14, and a third gear 18 is fixed to the cylindrical boss 1401 on the other rotating base 14. The first gear 16 and the second gear 17 are respectively sleeved on the two shaft rods 5 of the rotating frame, wherein the first gear 16 and the second gear 17 are rotatably connected to the corresponding shaft rod 5. By setting the outer side of the shaft rod 5 to a smooth cylindrical surface, To ensure that the first gear 16 and the second gear 17 can rotate, the first gear 16 and the second gear 17 are fixed by screwing a pan head screw into the threaded hole of the shaft portion 5, and the incomplete gear 15, the first gear 16, the second gear 17, and the third gear 18 are meshed in sequence. When one of the rotating bases 14 is rotated, the other rotating base 14 will also rotate in the opposite direction, and the two rotating bases 14 rotate at the same angle. Before and after the rotating base 14 rotates, the gear teeth on both sides of the incomplete gear 15 contact the two ends of the limit block 6 respectively, so that the rotation angle of the rotating base 14 can be limited by the limit block 6. The sum of the central angle corresponding to the limit block 6 on the rotating frame and the central angle corresponding to the gear teeth on the incomplete gear 15 is 270 degrees, so that the rotating base 14 can only rotate 90 degrees.

[0030] In the present invention, the stopper 6 is preferably in an arc shape, and the stopper 6 is concentric with the first shaft hole 2. In order to ensure that the rotating base 14 can rotate 90 degrees, that is, to achieve the folding function of the electric heater, the center angle corresponding to the gear teeth on the incomplete gear 15 shall not be less than 90 degrees, and the center angle corresponding to the stopper 6 shall not be greater than 180 degrees. At the same time, the distance between the end of the stopper 6 and the central axis of the gear frame 13 is ( Figure 6 The square of the length of the line segment CD shown in ( ) is greater than the inner diameter of the limit stopper 6 ( Figure 6 The square of the length of the line segment OD shown in (in) and the distance between the center axis of the gear rack 13 and the center of the first shaft hole 2 ( Figure 6 The sum of the squares of the length of the line segment OC shown in the figure can be expressed as CD 2 >OD 2 +OC 2 , that is, to ensure Figure 6 The ∠COD in the test tube shall not be less than 90 degrees.

[0031] In the present invention, the distance between the gear rack 13 close to the first shaft hole 2 and the center of the first shaft hole 2 is equal to the distance between the gear rack 13 close to the second shaft hole 3 and the second shaft hole 3. At this time, the first gear 16 and the second gear 17 with the same parameters can be installed on the shaft parts 5 of the two gear racks 13, so that the two bearing racks can rotate at the same angle when in use. For ease of assembly, the two gear racks 13 are both located on the line connecting the center of the first shaft hole 2 and the center of the second shaft hole 3.

[0032] In the present invention, the plate body 1 is provided with a longitudinal beam 8, the height of the longitudinal beam 8 is lower than the height of the boss portion 4, the strip groove 11 is arranged in the longitudinal beam 8, the plate body 1 is provided with two convex rings 9 surrounding the outside of the first shaft hole 2 and the second shaft hole 3, and the edge of the plate body 1 is provided with a reinforcing rib 10, the height of the reinforcing rib 10 is the same as the height of the convex ring 9. After the convex ring 9 and the reinforcing rib 10 are provided on the plate body 1, the thickness of the plate body 1 can be reduced without reducing the overall structural strength of the rotating frame, thereby reducing the deadweight of the rotating frame itself and saving raw materials. At the same time, by providing the longitudinal beam 8 on the main body, it is avoided that the strip groove 11 passes through the entire plate body 1 when the thickness of the plate body 1 is reduced. A nail seat 7 is provided at both ends of the longitudinal beam 8, and a countersunk hole 12 is provided in the middle of the nail seat 7 to pass through the upper end of the nail seat 7 and the bottom surface of the plate body 1.

[0033] The present invention is specifically used for a rotating frame of a foldable electric heater. The present invention cooperates with a rotating base to realize the synchronous folding function of the foldable electric heater, thereby facilitating the storage of the electric heater when not in use, reducing the space occupied by the electric heater when not in use, and the present invention can realize accurate control of the rotation angle when realizing the folding function of the electric heater. The present invention has the advantages of reasonable layout and compact structure in structural design, and can be integrally formed by injection molding, with a simple manufacturing process and low product cost.

[0034] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A foldable carbon fiber electric heater rotating frame, characterized in that: The invention comprises a plate body, wherein a first axial hole and a second axial hole are formed on the plate body, and two gear racks are arranged on the plate body, and the two gear racks are arranged between the two axial holes; the gear rack comprises a boss portion fixedly connected to the plate body and a shaft rod portion fixedly connected to an end of the boss portion away from the plate body, the outer side of the shaft rod portion is a smooth cylindrical surface, and a threaded hole is arranged at an end of the shaft rod portion away from the plate body; a strip groove is arranged on a side of the plate body away from the gear rack, and the strip groove is located between the two gear racks; the rotating rack also comprises a limit stopper fixed to the plate body at the periphery of the first axial hole; The limit stopper is in an arc shape, the limit stopper is concentric with the first axial hole, and the central angle corresponding to the limit stopper is not greater than 180 degrees; The square of the distance between the end of the limit stopper and the central axis of the gear frame is greater than the sum of the square of the inner diameter of the limit stopper and the square of the distance between the central axis of the gear frame and the center of the first shaft hole; The distance between the gear frame close to the first shaft hole and the center of the first shaft hole is equal to the distance between the gear frame close to the second shaft hole and the second shaft hole; The two gear racks are both located on the line connecting the center of the first shaft hole and the center of the second shaft hole; The plate body is provided with a longitudinal beam, the height of the longitudinal beam is lower than the height of the boss portion, and the strip groove is provided in the longitudinal beam; The plate body is provided with two convex rings surrounding the outside of the first axial hole and the second axial hole; The edge of the plate body is provided with reinforcing ribs, and the height of the reinforcing ribs is the same as the height of the convex ring; A nail seat is arranged at both ends of the longitudinal beam, and a countersunk hole penetrating the upper end of the nail seat and the bottom surface of the plate body is arranged in the middle of the nail seat.

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