Sunshade device for skid-mounted photo-thermal heating device
By designing a worm-driven sunshade assembly in a skid-mounted photothermal heating device, the sunshade of the photothermal tube is achieved, which solves the problem of excessive temperature of the circulation medium and ensures the stable operation and safe use of the device.
Patent Information
- Application Number
- CN202421157978.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-24
AI Technical Summary
When the light is too strong or the power outage is out of power in summer, the circulating medium temperature will cause evaporation, affecting the stable operation of the device.
A sunshade device including a driving mechanism, a worm and a sunshade assembly is designed. Through the worm, the sunshade cover in the sunshade assembly is driven to rotate about the axis of the photo-heat tube to achieve effective sunshade of the photo-heat tube and reduce the evaporation of the circulating medium. The sunshade ensures precise position and safe operation through the limit bracket and clutch device.
Effectively block sunlight, reduce evaporation of circulating medium, ensure stable operation of the skid-mounted photothermal heating device, and avoid damage caused by excessive torque through the clutch device, ensuring safety of use.
Smart Images
Figure CN222317314U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of solar energy utilization, in particular to a sunshade device for a skid-mounted photothermal heating device. Background Art
[0002] The skid-mounted solar thermal heating device is a device that uses solar energy for heating. Its characteristic is that its overall structure can be easily skidded and moved to meet the use requirements in different sites or environments. This device mainly uses solar radiation heat to heat the circulating medium such as water or crude oil in the solar thermal tube, thereby generating steam or electricity, and has the advantages of environmental protection, energy saving, and high efficiency.
[0003] However, when the sunlight is too strong in the summer or when there is a power outage and the skid-mounted solar thermal heating device is not in use, too much heat will cause the circulating medium in the collector to evaporate at too high a temperature. As the circulating medium evaporates, the operation of the skid-mounted solar thermal heating device is seriously affected. Utility Model Content
[0004] The purpose of the utility model is to provide a sunshade device for a skid-mounted photothermal heating device to solve the problems existing in the above-mentioned prior art, effectively shade the photothermal tube, reduce the evaporation of the circulating medium, and ensure the stable operation of the skid-mounted photothermal heating device.
[0005] To achieve the above purpose, the utility model provides the following solutions:
[0006] The utility model provides a sunshade device for a skid-mounted photothermal heating device, comprising a driving mechanism, a worm and at least one sunshade assembly; the output end of the driving mechanism is connected to one end of the worm, and the output end of the driving mechanism can drive the worm to rotate; each of the sunshade assemblies corresponds to a photothermal tube, and the sunshade assembly comprises a worm gear, a clutch device, a passive wheel and a sunshade cover for blocking sunlight; the worm gear is rotatably connected to a connecting bracket around a first axis through a first bearing, the first axis is coaxial with the axis of the photothermal tube, and the connecting bracket is used to connect to the skid-mounted photothermal heating device. The device is fixedly connected to the collector box; the worm wheel is meshingly driven with the worm; the passive wheel is connected to the worm wheel through a clutch device, and both the passive wheel and the worm wheel can rotate around the axis of the solar thermal tube; in the axial direction of the solar thermal tube, the clutch device can enable the worm wheel to drive the passive wheel to rotate together or enable the passive wheel to be disengaged from the drive of the worm wheel; the sunshade is C-shaped and is used to cover the outside of a single solar thermal tube; one end of the sunshade is fixedly connected to the passive wheel; the passive wheel can drive the sunshade to rotate synchronously around the axial direction of the solar thermal tube and enable the sunshade to cover the solar thermal tube.
[0007] Preferably, a limiting bracket is provided on one side of the sunshade; when the sunshade is rotated to the sunshade position of the thermal tube, one side of the sunshade contacts with the limiting bracket, and the limiting bracket can limit the continued rotation of the sunshade around the axis of the thermal tube; after one side of the sunshade contacts with the limiting bracket, the clutch device can disconnect the rotation drive of the worm gear on the passive wheel.
[0008] Preferably, the clutch device includes a second bearing and a plurality of clutch members; a mounting cylinder is fixedly provided at the lower end of the worm gear, and the passive wheel is rotatably arranged in the mounting cylinder around a second axis through the second bearing, and the second axis is coaxial with the axis of the light heat pipe; the clutch member includes a fixed protrusion, a swing rod and an elastic member; the fixed protrusion is fixedly arranged on the inner side wall of the worm gear; the swing rod has a first end and a second end, the first end is connected to the passive wheel for rotation around a third axis, and the third axis is parallel to the axis of the passive wheel; the second end is fixedly connected to one end of the elastic member, and the other end of the elastic member is connected to the passive wheel The driven wheel is fixedly connected; in a natural state, the second end of the swing rod can expand outwardly in the direction away from the axis of the driven wheel and exceed the outer edge of the driven wheel under the push of the elastic member; the second end of the swing rod can be kept on the side of the rotation direction of the fixed protrusion under the push of the elastic member, so that the worm gear drives the driven wheel to rotate synchronously; after the sunshade on the driven wheel contacts the limiting bracket, the rotation of the driven wheel is restricted, and the fixed protrusion can squeeze the second end of the swing rod and make the second end of the swing rod pass from one side of the fixed protrusion to the other side.
[0009] Preferably, a base is provided at one end of the sunshade away from the passive wheel, the base is sleeved on the photothermal tube, and the base is connected to the bracket at the lower end of the photothermal tube through a third bearing; the passive wheel and the base jointly maintain the distance between the sunshade and the photothermal tube.
[0010] Preferably, the sunshade is a rigid member.
[0011] Preferably, it also includes a counterweight wheel, a connecting rope and a counterweight; the counterweight wheel can be coaxially fixed to the end of the worm; one end of the connecting rope is fixed to the counterweight wheel and the connecting rope is wound around the counterweight wheel, and the other end of the connecting rope is fixedly connected to the counterweight; when the counterweight falls due to its own gravity, the counterweight wheel driven to rotate by the connecting rope can synchronously drive the worm to rotate.
[0012] Preferably, the sunshade is provided with a plurality of through holes, and a sunshade is provided above each of the through holes.
[0013] Compared with the prior art, the utility model has achieved the following technical effects:
[0014] The utility model provides a sunshade device for a skid-mounted solar thermal heating device, which is achieved by arranging a sunshade assembly on each solar thermal tube, and driving multiple sunshade assemblies in conjunction with each other through a worm gear, so that a sunshade cover in the sunshade assembly rotates around the axis of the solar thermal tube to a sunshade position, thereby ensuring a sunshade effect on the solar thermal tube, effectively shading the sun, reducing evaporation of a circulating medium, and ensuring stable operation of the skid-mounted solar thermal heating device; and a clutch device is used to achieve connection between the worm gear and the driven wheel, so as to avoid damage to the driven wheel caused by excessive torque between the two during rotation.
[0015] Furthermore, the setting of the limit bracket can limit the shading position of the sunshade, thereby ensuring that it can properly shade the solar thermal tube. It is equipped with a clutch device to prevent the worm gear from continuing to rotate and drive the passive wheel to rotate after the sunshade contacts the limit bracket, thereby ensuring safety in use.
[0016] Furthermore, the passive wheel is rotatably connected to the worm wheel through the second bearing, and the clutch member adopts a matching mode of a fixed protrusion, a swing rod and an elastic member. The second end of the swing rod can move along the outer contour of the fixed protrusion and increase or reduce the extrusion of the elastic member. Under normal circumstances, the rotation of the worm wheel is required to drive the passive wheel to rotate together. At this time, under the extrusion of the elastic member, the second end of the swing rod can be stably located on one side of the fixed protrusion, so that the passive wheel can be stably driven by the worm wheel; when the sunshade on the passive wheel is blocked by the limiting bracket, the rotation resistance of the passive wheel gradually increases. At this time, the worm wheel continues to rotate with the fixed protrusion. As the fixed protrusion squeezes the second end of the swing rod, it continues to compress the elastic member. When the second end of the swing rod moves from one side of the fixed protrusion to the other side relative to the fixed protrusion, the connection between the worm wheel and the passive wheel is disconnected, and the rotation of the worm wheel cannot continue to drive the rotation of the passive wheel. First, the accuracy of the sunshade position of the sunshade is ensured; second, the safe operation of the passive wheel is effectively guaranteed to avoid excessive rotation of the worm wheel to cause extrusion damage between the passive wheel and the limiting bracket.
[0017] Furthermore, one end of the sunshade is connected to the passive wheel, and the other end of the sunshade is connected to the base. The passive wheel can ensure the distance between it and the thermal tube through the second bearing, and the base can ensure the distance between it and the thermal tube through the third bearing, thereby ensuring the stability of the distance between the sunshade and the thermal tube, that is, ensuring a uniform shading effect on each position of the thermal tube.
[0018] Furthermore, the sunshade is a rigid part, which can effectively ensure the stability of the sunshade itself, avoid contact between the sunshade and the solar thermal pipe, and ensure a good shielding effect of the sunshade.
[0019] Furthermore, the arrangement of the counterweight wheel and the counterweight can be used in an off-power state, thereby driving the worm to rotate, thereby realizing the sunshade being turned to the sunshade position or opened from the sunshade position.
[0020] Furthermore, the provision of through holes on the sunshade can effectively reduce the wind resistance of the sunshade and avoid the impact of excessive wind on it; and the provision of through holes enables the sunshade to allow wind to circulate while achieving a sunshade effect, thereby further reducing the heat of the solar thermal tube. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0022] Figure 1 A schematic diagram of the overall structure of a sunshade device for a skid-mounted photothermal heating device provided by the utility model;
[0023] Figure 2 A top view of the connection between the worm and the worm wheel in a sunshade device for a skid-mounted photothermal heating device provided by the utility model.
[0024] In the figure:
[0025] 100-Sunshade device for skid-mounted solar thermal heating device;
[0026] 10- driving mechanism;
[0027] 20-worm;
[0028] 30-worm gear; 31-mounting cylinder;
[0029] 40-clutch member; 41-fixed protrusion; 411-inclined surface; 412-straight surface; 42-swing rod; 421-first end; 422-second end; 423-spherical protrusion; 43-elastic member;
[0030] 50-passive wheel; 51-accommodating groove;
[0031] 60-sunshade; 61-sunshade; 62-base;
[0032] 70-limit bracket;
[0033] 80-weight wheel; 81-connecting rope; 82-weight object;
[0034] 90-solar heat pipe; 91-thermal collector box. DETAILED DESCRIPTION
[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0036] The purpose of the utility model is to provide a sunshade device 100 for a skid-mounted photothermal heating device to solve the problems existing in the prior art, effectively shade the photothermal pipe 90, reduce the evaporation of the circulating medium, and ensure the stable operation of the skid-mounted photothermal heating device.
[0037] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0038] Embodiment 1
[0039] This embodiment provides a sunshade device 100 for a skid-mounted photothermal heating device. Figure 1-2 As shown, it includes a driving mechanism 10, a worm 20 and at least one sunshade assembly; the output end of the driving mechanism 10 is connected to one end of the worm 20, and the output end of the driving mechanism 10 can drive the worm 20 to rotate; each sunshade assembly corresponds to a solar thermal tube 90, and the sunshade assembly includes a worm gear 30, a clutch device, a passive wheel 50 and a sunshade cover 60 for blocking sunlight; the worm gear 30 is rotatably connected to the connecting bracket around the first axis through a first bearing, the first axis is coaxial with the axis of the solar thermal tube 90, and the connecting bracket is used to be fixedly connected to the collector box 91 of the skid-mounted solar thermal heating device; the worm gear 30 is meshed with the worm 20 for transmission; the passive wheel 50 is connected to the worm wheel 30 through a clutch device, and both the passive wheel 50 and the worm wheel 30 can rotate around the axis of the thermal tube 90; in the axial direction of the thermal tube 90, the clutch device can enable the worm wheel 30 to drive the passive wheel 50 to rotate together or to disengage the passive wheel 50 from the drive of the worm wheel 30; the sunshade 60 is C-shaped and is used to cover the outside of a single thermal tube 90; one end of the sunshade 60 is fixedly connected to the passive wheel 50; the passive wheel 50 can drive the sunshade 60 to rotate synchronously around the axial direction of the thermal tube 90 and enable the sunshade 60 to cover the thermal tube 90.
[0040] By arranging a sunshade assembly on each solar thermal tube 90, and driving multiple sunshade assemblies in conjunction through the worm 20, the sunshade cover 60 in the sunshade assembly is rotated around the axis of the solar thermal tube 90 to the sunshade position, thereby ensuring the sunshade effect on the solar thermal tube 90, enabling it to effectively shade the sun, reduce the evaporation of the circulating medium, and ensure the stable operation of the skid-mounted solar thermal heating device; and the connection between the worm gear 30 and the driven wheel 50 is achieved through the clutch device, avoiding damage to the driven wheel 50 due to excessive torque between the two during rotation.
[0041] Among them, regarding the driving mechanism 10:
[0042] Specifically, the driving mechanism 10 may be a motor, or other existing driving device that can drive the worm 20 to rotate.
[0043] Among them, regarding the clutch device in the sunshade assembly:
[0044] Specifically, the clutch device can be any existing transmission clutch component that can realize the rotation between the worm gear 30 and the driven gear 50, including but not limited to the clutch device composed of the following structures.
[0045] Among the optional solutions of this embodiment, it is more preferred that Figure 1 and Figure 2 As shown, the clutch device includes a second bearing and a plurality of clutch members 40; a mounting cylinder 31 is fixedly provided at the lower end of the worm wheel 30, and the driven wheel 50 is rotatably arranged in the mounting cylinder 31 through the second bearing around the second axis, and the second axis is coaxial with the axis of the light heat pipe 90; the clutch member 40 includes a fixed protrusion 41, a swing rod 42 and an elastic member 43; the fixed protrusion 41 is fixedly arranged on the inner side wall of the worm wheel 30; the swing rod 42 has a first end 421 and a second end 422, the first end 421 is rotatably connected to the driven wheel 50 around the third axis, and the third axis is parallel to the axis of the driven wheel 50; the second end 422 is fixedly connected to one end of the elastic member 43, and the other end of the elastic member 43 is fixedly connected to the driven wheel 50 The passive wheel 50 is fixedly connected; in a natural state, the second end 422 of the swing rod 42 can expand outwardly in the axial direction away from the passive wheel 50 and exceed the outer edge of the passive wheel 50 under the push of the elastic member 43; the second end 422 of the swing rod 42 can be kept on the side of the rotation direction of the fixed protrusion 41 under the push of the elastic member 43, so that the worm gear 30 drives the passive wheel 50 to rotate synchronously; after the sunshade 60 on the passive wheel 50 contacts the limiting bracket 70, the rotation of the passive wheel 50 is restricted, and the fixed protrusion 41 can squeeze the second end 422 of the swing rod 42 and make the second end 422 of the swing rod 42 pass from one side of the fixed protrusion 41 to the other side.
[0046] The passive wheel 50 is rotatably connected to the worm wheel 30 through the second bearing. The clutch member 40 adopts the cooperation mode of the fixed protrusion 41, the swing rod 42 and the elastic member 43. The second end 422 of the swing rod 42 can move along the outer contour of the fixed protrusion 41 and increase or decrease the extrusion of the elastic member 43. Under normal circumstances, the rotation of the worm wheel 30 is required to drive the passive wheel 50 to rotate together. At this time, under the extrusion of the elastic member 43, the second end 422 of the swing rod 42 can be stably located on one side of the fixed protrusion 41, so that the passive wheel 50 can be stably driven by the worm wheel 30; when the sunshade 60 on the passive wheel 50 is blocked by the limiting bracket 70, the passive wheel 50 The rotational resistance gradually increases. At this time, the worm gear 30 continues to rotate with the fixed protrusion 41. As the fixed protrusion 41 squeezes the second end 422 of the swing rod 42, it continues to compress the elastic member 43. When the second end 422 of the swing rod 42 moves from one side of the fixed protrusion 41 to the other side relative to the fixed protrusion 41, the connection between the worm gear 30 and the driven wheel 50 is disconnected. The rotation of the worm gear 30 can no longer drive the rotation of the driven wheel 50. Firstly, the accuracy of the sunshade position of the sunshade 60 is ensured. Secondly, the safe operation of the driven wheel 50 is effectively guaranteed to avoid excessive rotation of the worm gear 30, which causes extrusion damage between the driven wheel 50 and the limiting bracket 70.
[0047] Specifically, the matching structure of the fixing protrusion 41 and the second end 422 of the swing rod 42 includes but is not limited to the following specific structure: the fixing protrusion 41 is triangular, and its surface in contact with the second end 422 of the swing rod 42 has an inclined surface 411 and a straight surface 412, such as Figure 2 As shown, when the worm wheel 30 rotates clockwise, the second end 422 of the swing rod 42 first contacts the inclined surface 411 of the fixed protrusion 41 ; a spherical protrusion 423 is provided at the position where the second end 422 of the swing rod 42 contacts the fixed protrusion 41 .
[0048] Specifically, the elastic member 43 is a spring.
[0049] Among them, regarding the passive wheel 50 in the sunshade assembly:
[0050] Specifically, a receiving groove 51 is provided on the circumferential outer edge of the driven wheel 50 , and the elastic member 43 is located in the receiving groove 51 .
[0051] Among them, regarding the sunshade 60 in the sunshade assembly:
[0052] Specifically, the sunshade 60 itself includes but is not limited to a rigid part, and may also be a flexible part.
[0053] In the optional solution of this embodiment, it is more preferred that the sunshade 60 is a rigid member. The sunshade 60 is a rigid member, which can effectively ensure the stability of the sunshade 60 itself, avoid contact between the sunshade 60 and the light heat pipe 90, and ensure a good shielding effect of the sunshade 60.
[0054] Specifically, when the sunshade 60 is a rigid member, it may be a metal plate.
[0055] Specifically, a heat insulation layer or a sun protection layer may be provided on the sunshade 60 to increase the heat insulation effect.
[0056] Among the optional solutions of this embodiment, it is more preferred that Figure 1 As shown, a base 62 is provided at one end of the sunshade 60 away from the passive wheel 50, and the base 62 is sleeved on the photothermal pipe 90, and the base 62 is connected to the bracket at the lower end of the photothermal pipe 90 through the third bearing; the passive wheel 50 and the base 62 jointly maintain the distance between the sunshade 60 and the photothermal pipe 90. One end of the sunshade 60 is connected to the passive wheel 50, and the other end of the sunshade 60 is connected to the base 62. The passive wheel 50 can ensure the distance between it and the photothermal pipe 90 through the second bearing, and the base 62 can ensure the distance between it and the photothermal pipe 90 through the third bearing, thereby ensuring the stability of the distance between the sunshade 60 and the photothermal pipe 90, that is, ensuring the uniform sunshade effect at each position of the photothermal pipe 90.
[0057] Specifically, the inner ring of the third bearing can be connected to the base 62, and the outer ring of the third bearing can be connected to the bracket at the lower end of the light heat pipe 90 through the bracket, or the outer ring of the third bearing can be connected to a nearby fixing member through the bracket.
[0058] Among the optional solutions of this embodiment, it is more preferred that Figure 1 As shown, the sunshade 60 is provided with a plurality of through holes, and a sunshade plate 61 is provided above each through hole. Furthermore, the provision of the through holes on the sunshade 60 can effectively reduce the wind resistance of the sunshade 60, and avoid the influence of excessive wind force on it; and the provision of the through holes enables the sunshade 60 to achieve the sunshade effect while allowing the wind to circulate, thereby further reducing the heat of the light heat pipe 90.
[0059] Specifically, the sunshade 61 is used to block light from passing through the through hole and irradiating onto the light-heat pipe 90 .
[0060] To ensure that the sunshade cover 60 is in the right position:
[0061] Among the optional solutions of this embodiment, it is more preferred that Figure 1As shown, a limiting bracket 70 is provided on one side of the sunshade 60; when the sunshade 60 is rotated to the sunshade position of the photothermal tube 90, one side of the sunshade 60 contacts the limiting bracket 70, and the limiting bracket 70 can limit the continued rotation of the sunshade 60 around the axis of the photothermal tube 90; after one side of the sunshade 60 contacts the limiting bracket 70, the clutch device can disconnect the rotation drive of the worm gear 30 on the passive wheel 50. The setting of the limiting bracket 70 can limit the sunshade position of the sunshade 60, thereby ensuring that it is in place to shade the photothermal tube 90. It is equipped with a clutch device to prevent the worm gear 30 from continuing to rotate and drive the rotation of the passive wheel 50 after the sunshade 60 contacts the limiting bracket 70, thereby ensuring safety in use.
[0062] Specifically, the structure of the sunshade 61 and the corresponding through hole may be the same as that of a shutter.
[0063] Among them, in order to achieve the use in the absence of electricity, the following components can also be provided:
[0064] Among the optional solutions of this embodiment, it is more preferred that Figure 2 As shown, the worm 20 also includes a counterweight wheel 80, a connecting rope 81 and a counterweight 82; the counterweight wheel 80 can be coaxially fixed to the end of the worm 20; one end of the connecting rope 81 is fixed to the counterweight wheel 80 and the connecting rope 81 is wound around the counterweight wheel 80, and the other end of the connecting rope 81 is fixedly connected to the counterweight 82; when the counterweight 82 falls due to its own gravity, the counterweight wheel 80 driven to rotate by the connecting rope 81 can synchronously drive the worm 20 to rotate. The arrangement of the counterweight wheel 80 and the counterweight 82 can be used in a non-powered state, thereby driving the worm 20 to rotate, and realizing the sunshade 60 to be turned to the sunshade position or opened from the sunshade position.
[0065] Specifically, the counterweight wheel 80 can be detachably arranged at the end of the worm 20 , and when the driving mechanism 10 is out of power and cannot be used, the counterweight wheel 80 can be installed at the end of the worm 20 , so that the worm 20 can be driven to rotate by the gravity of the counterweight 82 .
[0066] Among them, regarding other related instructions:
[0067] Specifically, when in use, a single worm screw 20 can be used in conjunction with a plurality of sunshade assemblies.
[0068] Specifically, the sunshade 60 may be positioned in the right position by using a limit bracket 70 in combination with a clutch device between the worm wheel 30 and the driven wheel 50; or a stepper motor capable of achieving precise control of the rotation angle may be used to drive the worm 20 to rotate.
[0069] Specifically, in order to ensure that the sunshade 60 can be stably located in the sunshade position after being restricted by the limiting bracket 70, the positions of the C-shaped sunshade 60 and the limiting bracket 70 can be reasonably set. Based on the fact that the solar thermal tube 90 is in an inclined posture when in use, the sunshade 60 covers the top of the solar thermal tube 90. Therefore, the arc length of the C shape of the sunshade 60 and the position of the limiting bracket 70 are reasonably set so that when the sunshade 60 is in the sunshade position, the component force of the center of gravity driving the sunshade 60 to rotate in a direction that is still restricted by the limiting bracket 70 can be achieved.
[0070] Specifically, in the axial direction of the light heat pipe 90 , the length of the sunshade 60 can be adaptively set according to the length of the light heat pipe 90 , and can be selected based on the achievable sunshade effect.
[0071] Specifically, the position of the limiting bracket 70 is fixed; the end of the limiting bracket 70 that is not used to block the sunshade 60 can be fixedly connected to the collector box 91, or can be connected to other fixed positions, thereby ensuring that the position of the limiting bracket 70 is fixed.
[0072] Specifically, the connecting bracket is fixedly connected to the collector box 91 , a first bearing is sleeved on the outer wall of the mounting tube 31 of the worm gear 30 , the outer ring of the first bearing is connected to the connecting bracket, the inner wall of the mounting tube 31 is connected to the outer ring of the second bearing, and the inner ring of the second bearing is connected to the passive wheel 50 .
[0073] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of the present invention. At the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.
Claims
1. A sunshade device for a skid-mounted photothermal heating device, characterized in that: It comprises a driving mechanism, a worm and at least one sunshade assembly; the output end of the driving mechanism is connected to one end of the worm, and the output end of the driving mechanism can drive the worm to rotate; Each of the sunshade assemblies corresponds to a light and heat pipe, and the sunshade assembly includes a worm gear, a clutch device, a passive wheel and a sunshade cover for blocking sunlight; The worm wheel is rotatably connected to the connecting bracket around a first axis through a first bearing, the first axis is coaxial with the axis of the solar thermal pipe, and the connecting bracket is used to be fixedly connected to the collector box of the skid-mounted solar thermal heating device; the worm wheel is meshed with the worm for transmission; The passive wheel is connected to the worm wheel through a clutch device, and both the passive wheel and the worm wheel can rotate around the axis of the thermal energy pipe; in the axis direction of the thermal energy pipe, the clutch device can make the worm wheel drive the passive wheel to rotate together or make the passive wheel disengage from the drive of the worm wheel; The sunshade is C-shaped and is used to cover the outside of a single solar thermal tube; one end of the sunshade is fixedly connected to the passive wheel; The passive wheel can drive the sunshade to rotate synchronously around the axis direction of the photothermal tube and make the sunshade cover the photothermal tube.
2. The sunshade device for the skid-mounted photothermal heating device according to claim 1, characterized in that: A limiting bracket is provided on one side of the sunshade; When the sunshade is rotated to the sunshade position of the photothermal tube, one side of the sunshade contacts the limit bracket, and the limit bracket can limit the sunshade from continuing to rotate around the axis of the photothermal tube; After one side of the sunshade contacts the limiting bracket, the clutch device can disconnect the rotation of the driven wheel by the worm gear.
3. The sunshade device for the skid-mounted photothermal heating device according to claim 2, characterized in that: The clutch device comprises a second bearing and a plurality of clutch members; A mounting cylinder is fixedly arranged at the lower end of the worm gear, and the passive wheel is arranged in the mounting cylinder to rotate around the second axis through the second bearing, and the second axis is coaxial with the axis of the light heat pipe; The clutch member comprises a fixed protrusion, a swing rod and an elastic member; the fixed protrusion is fixedly arranged on the inner side wall of the worm gear; the swing rod has a first end and a second end, the first end is connected to the driven wheel for rotation around a third axis, and the third axis is parallel to the axis of the driven wheel; the second end is fixedly connected to one end of the elastic member, and the other end of the elastic member is fixedly connected to the driven wheel; in a natural state, the second end of the swing rod can expand outwardly in a direction away from the axis of the driven wheel and exceed the outer edge of the driven wheel under the push of the elastic member; The second end of the swing rod can be kept at one side of the rotation direction of the fixed protrusion under the pushing action of the elastic member, so that the worm gear drives the driven wheel to rotate synchronously; After the sunshade on the passive wheel contacts the limiting bracket, the rotation of the passive wheel is limited, and the fixing protrusion can squeeze the second end of the swing rod and make the second end of the swing rod pass from one side of the fixing protrusion to the other side.
4. The sunshade device for the skid-mounted photothermal heating device according to claim 1, characterized in that: The sunshade is provided with a base at one end away from the passive wheel, the base is sleeved on the photothermal tube, and the base is connected to the bracket at the lower end of the photothermal tube through a third bearing; The passive wheel and the base jointly maintain the distance between the sunshade and the photothermal tube.
5. The sunshade device for the skid-mounted photothermal heating device according to claim 1, characterized in that: The sunshade is a rigid part.
6. The sunshade device for the skid-mounted photothermal heating device according to claim 1, characterized in that: It also includes a weight wheel, connecting rope and weight; The counterweight wheel can be coaxially fixed to the end of the worm; One end of the connecting rope is fixed to the counterweight wheel and the connecting rope is wound around the counterweight wheel, and the other end of the connecting rope is fixedly connected to the counterweight object; When the counterweight falls due to its own gravity, the counterweight wheel driven to rotate by the connecting rope can synchronously drive the worm to rotate.
7. The sunshade device for the skid-mounted photothermal heating device according to claim 1, characterized in that: The sunshade is provided with a plurality of through holes, and a sunshade is provided above each of the through holes.