CN113587452A

CN113587452A - Solar water heater

Info

Publication number: CN113587452A
Application number: CN202110836086.1A
Authority: CN
Inventors: 陈东; 纪家乡; 崔燕
Original assignee: Individual
Current assignee: Shandong Xulilai Clean Energy Technology Co ltd
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2021-11-02
Anticipated expiration: 2041-07-23
Also published as: CN113587452B

Abstract

The application relates to the technical field of water heaters, and provides a solar water heater which comprises a support frame, a water storage tank and a plurality of vacuum tubes, wherein the water storage tank is arranged at the top of the support frame, the vacuum tubes are connected with the water storage tank, and the vacuum tubes are fixedly arranged with the support frame; the support frame comprises two V-shaped support rods, each support rod consists of a vertical rod and an inclined rod, and the water storage tank is fixed between the top ends of the two support rods; the support frame also comprises a movable bottom plate connected between the bottoms of the two inclined rods, and mounting mechanisms are arranged at two ends of the movable bottom plate; the mounting mechanism comprises two side plates, two top plates and a first driving piece, the movable bottom plate is rotatably connected between the two side plates through a rotating shaft, the two top plates are respectively fixed on the same sides of the two side plates, the two top plates are respectively movably arranged above the two inclined rods, and the first driving piece is mounted on one side plate and used for driving the rotating shaft to rotate. The vacuum tube assembling device is convenient and quick to assemble and operate, improves the assembling and disassembling efficiency, and is convenient to adjust.

Description

Solar water heater

Technical Field

The application relates to the technical field of water heaters, in particular to a solar water heater.

Background

At present, a solar water heater is a heating device for converting solar energy into heat energy, and heats water from low temperature to high temperature so as to meet the requirement of hot water in life and production of people. The solar water heater is divided into a vacuum tube type solar water heater and a flat plate type solar water heater according to the structural form, mainly uses the vacuum tube type solar water heater as a main part, and occupies 95 percent of domestic market share.

From rural areas to cities, almost every family is provided with a solar water heater, and the solar water heater is used for supplying water for heating, so that the use of other non-renewable resources is reduced, and natural resources are utilized more efficiently. The common water heater needs to be installed in a place with good lighting, is generally arranged at the top of a rural house or the top layer of a building of a city district, ensures sufficient sunshine, generally adopts a triangular support for installing the solar water heater, and stably fixes the water heater on an installation site.

The existing vacuum tube type water heater comprises a plurality of vacuum tubes, when the existing vacuum tube type water heater is specifically installed, a worker is required to manually insert one end of each vacuum tube into a water storage tank of the solar water heater one by one, then the other end of each vacuum tube is fixed with a support, the installation efficiency is low, and the vacuum tubes are easy to damage, so that the solar water heater with the vacuum tubes convenient and fast to install is urgently needed.

Disclosure of Invention

The present application provides a solar water heater to improve the above-mentioned problems.

The invention is particularly such that:

a solar water heater comprises a support frame, a water storage tank arranged at the top of the support frame and a plurality of vacuum pipes connected with the water storage tank, wherein the vacuum pipes are fixedly arranged with the support frame.

The support frame includes the bracing piece of two "V" types, and the bracing piece comprises montant and down tube, and the storage water tank is fixed between the top of two bracing pieces.

The support frame also comprises a movable bottom plate connected between the bottoms of the two inclined rods, and mounting mechanisms are arranged at two ends of the movable bottom plate.

The mounting mechanism comprises two side plates, two top plates and a first driving piece, the movable bottom plate is rotatably connected between the two side plates through a rotating shaft, the two top plates are respectively fixed on the same sides of the two side plates, the two top plates are respectively movably arranged above the two inclined rods, and the first driving piece is mounted on one side plate and used for driving the rotating shaft to rotate.

The inclined rod is also provided with an adjusting mechanism to drive the top plate above to slide along the length direction of the inclined rod.

One side of the movable bottom plate is provided with a plurality of groups of clamping mechanisms for respectively clamping the bottom ends of the vacuum tubes, and the other side of the movable bottom plate is also provided with a plurality of groups of sealing connection mechanisms which are used for supporting the bottom ends of the vacuum tubes after the vacuum tubes are connected with the water storage tank.

Furthermore, adjustment mechanism includes two sliders, lead screw and guide arm, and wherein, two sliders are sliding connection respectively at the top of two down tube, are fixed with first flange and second flange on the down tube of slider both sides respectively, and one of them slider and lead screw spiral cooperation, another slider and guide arm slip cup joint, and the both ends of guide arm, the both ends of lead screw are connected respectively in corresponding first flange and second flange, and the one end coaxial fixation of lead screw has the crank.

Further, fixture includes gyration board, splint and spring, and wherein, gyration board and activity bottom plate are connected, and one side symmetry sliding connection of gyration board has two curved splint, through a plurality of spring coupling between two splint, and forms the centre gripping clearance of centre gripping vacuum tube between two splint.

Furthermore, the rotary plates are in a circular plate shape and are coaxially and rotatably connected with the movable bottom plate, and the movable bottom plate is also provided with a reciprocating driving mechanism to drive each rotary plate to rotate.

Further, reciprocating drive mechanism includes pinion rack and a plurality of ring gear, the equal fixed cup of outer lane of every returning face has connect the ring gear, pinion rack and movable bottom plate are along its length direction sliding connection, one side vertical fixation of pinion rack has the regulating plate, the bar hole has been seted up on the regulating plate, reciprocating drive mechanism still includes the driving piece two fixed with movable bottom plate, the output shaft drive hookup of driving piece two has the carousel, the eccentric department in quotation of carousel is fixed with the driving lever, the bar is downthehole to wear to locate in the terminal activity of driving lever.

Further, still install pressing means on the movable bottom plate, pressing means includes the connecting rod, diaphragm and lifter plate, wherein, diaphragm and lifter plate parallel arrangement, be connected through a plurality of connecting rods between diaphragm and the lifter plate, the diaphragm is close to one side of splint and installs a plurality of pairs of ejector pins, every both sides that are located two splint of a set of fixture respectively to the ejector pin, still install the extensible member on the movable bottom plate, go up and down with the drive lifter plate, and the lifter plate moves the diaphragm and keeps away from or be close to splint, so that every two splint that the ejector pin drive corresponds draw close or keep away from.

Furthermore, the device also comprises a base, wherein the base is detachably connected below the support frame and is used for adjusting the rotation of the support frame.

Further, the base comprises two bottom plates arranged in parallel, a connecting frame for connecting the two bottom plates and a mounting plate fixedly mounted with the outside, a central shaft is fixed at the center of the connecting frame, a transmission gear is sleeved on the central shaft, and a rotary driving mechanism is mounted on the mounting plate and rotates by the transmission gear.

Furthermore, an arc-shaped guide rail is arranged below the base and is connected with the two bottom plates in a sliding manner, and the rotary driving mechanism drives the base to slide along the guide rail.

Further, the rotary driving mechanism comprises a driving plate and an expansion link, wherein one end of the expansion link is fixed with the mounting plate, the other end of the expansion link is connected with the driving plate, and a rack meshed with the transmission gear is fixed on one side of the driving plate;

the both ends of two bottom plates are pegged graft with the bottom surface of montant and down tube respectively, all install locking mechanism on the bottom plate, locking mechanism includes the symmetry and fixes the backup pad at the bottom plate top surface, fix the center sleeve between two backup pads and respectively the activity peg graft at center sleeve both ends, the end of peg slides and runs through the backup pad, and be used for pegging graft with montant or down tube that correspond, wherein, center sleeve internal fixation has the spring of being connected with peg inner, limit baffle is installed to the outer end of peg, be equipped with the spacing lug that corresponds with limit baffle on the bottom plate.

The invention has the beneficial effects that:

the water storage tank is fixed through the support frame comprising the two support rods, the mounting structure is stable, the bottom of each support rod is movably provided with the movable bottom plate capable of sliding along the length direction of the inclined rod, and the movable bottom plate is provided with the clamping mechanism capable of clamping the bottom ends of the vacuum tubes, so that the vacuum tubes are driven to be rapidly inserted into the water storage tank by driving the movable bottom plate to slide, the vacuum tubes are mounted more conveniently and rapidly, and manpower and material resources are saved.

The clamping mechanism provided by the invention is internally provided with the rotary plate which can rotate in a reciprocating manner, so that the vacuum tube is driven to rotate in a reciprocating manner while being inserted, the vacuum tube is inserted more conveniently and quickly, and the vacuum tube is not easy to damage.

The movable bottom plate can be turned over, so that the clamping mechanism or the sealing connection mechanism on one side of the movable bottom plate is matched with the vacuum tube in the corresponding position to work, and the working efficiency is further improved.

The base provided by the invention can drive the whole support frame and the water storage tank above the support frame to rotate, so that the position of the vacuum tube is adjusted, and the efficiency of utilizing solar energy is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic front view of the structure of FIG. 1 in accordance with the present invention;

FIG. 3 is a schematic side view of the structure of FIG. 1 according to the present invention;

FIG. 4 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;

FIG. 5 is an enlarged view of FIG. 1 at B of the present invention;

FIG. 6 is an enlarged view of the invention at C of FIG. 2;

FIG. 7 is a partial schematic structural view of the present invention;

FIG. 8 is an enlarged view of the invention at D of FIG. 7;

fig. 9 is a schematic structural view of a base in embodiment 2 of the present invention;

fig. 10 is an enlarged view of a portion of the structure of fig. 9 in accordance with the present invention.

Icon: the device comprises a vertical rod 101, an inclined rod 102, a water storage tank 103, a bottom plate 2, a connecting frame 3, a driving plate 4, a transmission gear 5, a mounting plate 6, an expansion rod 7, a movable bottom plate 8, a protective cover 9, a vacuum tube 10, a crank 11, a first convex plate 12, a screw rod 13, a top plate 14, a second convex plate 15, a driving part I16, a toothed plate 17, a clamping plate 18, a spring 19, a push rod 20, a driving part II 21, a rotary table 22, an adjusting plate 23, a shift lever 24, a strip-shaped hole 25, a notch 26, a positioning base 27, a lantern ring 28, external threads 29, a connecting rod 30, a transverse plate 31, a lifting plate 32, a guide rod 33, a sliding block 34, a side plate 35, a gear ring 36, a rotary plate 37, a central sleeve 38, a positioning column 39, a limiting convex block 40, a supporting plate 41, a limiting baffle 42 and a pin column 43.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present application, it should be noted that the indication of orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of the application is used, or the orientation or positional relationship which is usually understood by those skilled in the art, or the orientation or positional relationship which is usually placed when the product of the application is used, and is only for the convenience of describing the application and simplifying the description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Example 1:

referring to fig. 1-3, a solar water heater includes a support frame, a water storage tank 103 mounted on the top of the support frame, and a plurality of vacuum pipes 10 connected to the water storage tank 103, wherein the vacuum pipes 10 are mounted and fixed to the support frame.

Referring to fig. 1 and 3, the support frame includes two V-shaped support rods, each support rod is composed of a vertical rod 101 and an inclined rod 102, and a water storage tank 103 is fixed between the top ends of the two support rods. The V-shaped support rod can enable the structure to be more stable.

Referring to fig. 1 and 2, the supporting frame further includes a movable bottom plate 8 connected between the bottoms of the two inclined rods 102, and mounting mechanisms are disposed at both ends of the movable bottom plate 8.

Referring to fig. 2 and fig. 7, the mounting mechanism includes two side plates 35, two top plates 14 and a first driving element 16, the movable bottom plate 8 is rotatably connected between the two side plates 35 through a rotating shaft, the two top plates 14 are respectively fixed on the same side of the two side plates 35, the two top plates 14 are respectively movably disposed above the two diagonal rods 102, and the first driving element 16 is mounted on one of the side plates 35 and used for driving the rotating shaft to rotate. Wherein, driving piece one is servo motor, can drive curb plate 35 and rotate to it is rotatory to drive the activity bottom plate 8 between the curb plate 35.

The diagonal member 102 is also provided with an adjustment mechanism to drive the top plate 14 above to slide along the length direction thereof. The adjusting mechanism can slide the movable bottom plate 8 along the length direction of the inclined rod to drive the vacuum tube 10 to be rapidly inserted into the water storage tank 3.

Referring to fig. 2, 3 and 7, a plurality of groups of clamping mechanisms are disposed on one side of the movable bottom plate 8 to respectively clamp the bottom ends of the vacuum pipes 10, and a plurality of groups of sealing connection mechanisms are disposed on the other side of the movable bottom plate 8 and are used for supporting the bottom ends of the vacuum pipes 10 after the vacuum pipes 10 are connected with the water storage tank 103. The vacuum tubes 10 can be clamped and fixed at one time through the clamping mechanism, the vacuum tubes 10 can be conveniently installed at one time, and the installation efficiency of the vacuum tubes 10 is improved.

Wherein the sealing connection mechanism comprises a notch 26, a positioning base 27, a sleeve ring 28 and an external thread 29, wherein the positioning base 27 is a cylinder with one open end, a plurality of notches 26 are circumferentially distributed at the open end of the positioning base 27, and the outer wall of the positioning base 27 is open

Referring to fig. 7, the adjusting mechanism includes two sliding blocks 34, a screw rod 13 and a guide rod 33, wherein the two sliding blocks 34 are respectively slidably connected to the tops of the two inclined rods 102, the inclined rods 102 on both sides of the sliding blocks 34 are respectively fixed with a first convex plate 12 and a second convex plate 15, one sliding block 34 is spirally matched with the screw rod 13, the other sliding block 14 is slidably sleeved with the guide rod 33, both ends of the guide rod 33 and both ends of the screw rod 13 are respectively connected to the corresponding first convex plate 12 and the second convex plate 15, and one end of the screw rod 13 is coaxially fixed with the crank 11. The crank handle 11 is rotated to drive the screw rod 13 to rotate, so that the corresponding slide block 34 is driven to slide on the inclined rod 102, and the slide block 34 slides to drive the top plate 14 to move, so that the movable bottom plate between the side plates 35 is driven to move along the length direction of the inclined rod 102. The scheme is further provided with a protective cover 9, the protective cover 9 is used for containing the adjusting mechanism in the protective cover 9, and the protective cover 9 is provided with a through hole, so that the corresponding top plate 14 can movably penetrate through the through hole, and the top plate 14 and the sliding block 34 in the protective cover 9 can be conveniently connected.

Referring to fig. 4 and 6, in the present embodiment, the clamping mechanism includes a rotating plate 37, clamping plates 18 and springs 19, wherein the rotating plate 37 is connected to the movable bottom plate 8, two arc-shaped clamping plates 18 are symmetrically and slidably connected to one side of the rotating plate 37, the two clamping plates 18 are connected to each other through a plurality of springs 19, and a clamping gap for clamping the vacuum tube 10 is formed between the two clamping plates 18. When using, the bottom of vacuum tube 10 is inserted and is established between two splint 18 that correspond, can set up the rubber pad at the inner wall of splint 18 to increase the frictional force of centre gripping and protect the vacuum tube not receive the damage, thereby when activity bottom plate 8 removed, can drive the stable motion to storage water tank 3 direction of vacuum tube 10, so that accomplish the installation of vacuum tube 10 fast.

Referring to fig. 4 and 6, the rotating plates 37 are circular plates and are coaxially and rotatably connected to the movable bottom plate 8, and the movable bottom plate 8 is further provided with a reciprocating driving mechanism for driving each rotating plate 37 to rotate. The reciprocating driving mechanism can drive the rotary plate 37 to rotate in a reciprocating mode, so that the vacuum pipe 10 can be driven to rotate when the vacuum pipe 10 is inserted into the water storage tank 3, and the insertion is convenient and quick.

Specifically, can refer to fig. 5, reciprocating drive mechanism includes pinion rack 17 and a plurality of ring gear 36, ring gear 36 has all been fixed to cup jointed in every outer lane of revolving plate 37, pinion rack 17 and movable bottom plate 8 are along its length direction sliding connection, one side vertical fixation of pinion rack 17 has regulating plate 23, bar hole 25 has been seted up on the regulating plate 23, reciprocating drive mechanism still includes driving piece two 21 fixed with movable bottom plate 8, the output shaft drive hookup of driving piece two 21 has carousel 22, the quotation eccentric department of carousel 22 is fixed with driving lever 24, the terminal activity of driving lever 24 is worn to locate in bar hole 25. Above-mentioned scheme is in the work, and driving piece two can adopt servo motor, and two drive turntables of driving piece 22 are rotatory, drive driving lever 24 and rotate, because the hookup location relation of driving lever 24 and bar hole 25, can drive regulating plate 23 at certain extent reciprocating motion to drive pinion rack 17 reciprocating motion, finally make the ring gear reciprocating rotation with pinion rack 37 meshing, in order to realize the reciprocal rotation that drives vacuum tube 10, make things convenient for the installation of vacuum tube.

Referring to fig. 7 and 8, a pressing mechanism is further installed on the movable bottom plate 8, the pressing mechanism includes a connecting rod 30, a transverse plate 31 and a lifting plate 32, wherein the transverse plate 31 and the lifting plate 32 are arranged in parallel, the transverse plate 31 and the lifting plate 32 are connected through a plurality of connecting rods 30, a plurality of pairs of ejector rods 20 are installed on one side of the transverse plate 31 close to the clamping plate 18, each pair of ejector rods 20 are respectively located on two sides of two clamping plates 18 in a group of clamping mechanisms, a telescopic member is further installed on the movable bottom plate 8 to drive the lifting plate 32 to lift, and the lifting plate 32 drives the transverse plate 31 to be far away from or close to the clamping plate 18, so that each pair of ejector rods 20 drives the corresponding two clamping plates 18 to be close to or far away from. Through the scheme, the lifting plate 32 can be driven to lift under the work of the telescopic piece, the transverse driving plate 31 is close to or far away from the movable bottom plate, and the telescopic piece can adopt an electric telescopic rod.

Example 2:

in this embodiment, please refer to fig. 1-3, further comprising a base detachably connected below the supporting frame and used for adjusting the rotation of the supporting frame. So as to adjust the orientation of the device, ensure better heating effect and improve the using effect.

In the scheme, please refer to fig. 9, the base includes two bottom plates 2 arranged in parallel, a connecting frame 3 connecting the two bottom plates 2, and a mounting plate 6 fixed to the outside, a central shaft is fixed at the center of the connecting frame 3, a transmission gear 5 is sleeved on the central shaft, and a rotation driving mechanism is mounted on the mounting plate 6 to drive the rotation of the gear 5. The rotary driving mechanism works to drive the whole supporting frame and the water storage tank above the supporting frame to rotate, so that the vacuum tube 10 for absorbing solar energy can work more efficiently, and the heating efficiency is improved.

In the scheme, in order to make the operation more stable and reliable, an arc-shaped guide rail is further arranged below the base, not shown, the guide rail is connected with the two bottom plates 2 in a sliding manner, and the rotary driving mechanism drives the base to slide along the guide rail.

In the scheme, the rotary driving mechanism comprises a driving plate 4 and an expansion link 7, wherein one end of the expansion link 7 is fixed with the mounting plate 6, the other end of the expansion link 7 is connected with the driving plate 4, and one side of the driving plate 4 is fixed with a rack meshed with the transmission gear 5; the telescopic rod 7 can select an electric push rod, and the drive plate is driven to move under the action of the electric push rod so as to conveniently drive the transmission gear 5 to rotate.

Referring to fig. 9 and 10, in the present embodiment, two ends of two bottom plates 2 are respectively inserted into the bottom surfaces of a vertical rod 101 and an oblique rod 102, the bottom plates 2 are respectively provided with a locking mechanism, the locking mechanism includes support plates 41 symmetrically fixed on the top surface of the bottom plate 2, a central sleeve 38 fixed between the two support plates 41, and pin columns 43 respectively movably inserted into two ends of the central sleeve 38, ends of the pin columns 43 slidably penetrate through the support plates 41 and are used for being inserted into the corresponding vertical rod 101 or oblique rod 102, wherein a spring connected with inner ends of the pin columns 43 is fixed in the central sleeve 38, outer ends of the pin columns 43 are provided with limiting baffles 42, and the bottom plate 2 is provided with limiting protrusions 40 corresponding to the limiting baffles 42. The jack is all seted up on the bottom surface of the montant 101 of bracing piece and down tube 102, and the top surface of bottom plate 2 is fixed with and is used for the reference column 39 that corresponds with the jack, after the jack of montant 101 and down tube 102 bottom surface all pegs graft with the reference column 39 that corresponds, through rotating round pin 43, make limit baffle 42 not receiving the effect that blocks of spacing lug 40, round pin 43 receives the effect of sleeve 38 internal spring, the end of driving two round pin 43 inserts in the round pin hole of reserving on corresponding montant 101 or down tube 102.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a solar water heater, includes the support frame, installs storage water tank (103) and a plurality of vacuum tubes (10) of being connected with storage water tank (103) at support frame top, and vacuum tube (10) are fixed with the support frame installation, its characterized in that:

the support frame comprises two V-shaped support rods, each support rod consists of a vertical rod (101) and an inclined rod (102), and the water storage tank (103) is fixed between the top ends of the two support rods;

the support frame also comprises a movable bottom plate (8) connected between the bottoms of the two inclined rods (102), and mounting mechanisms are arranged at two ends of the movable bottom plate (8);

the mounting mechanism comprises two side plates (35), two top plates (14) and a first driving piece (16), the movable bottom plate (8) is rotatably connected between the two side plates (35) through a rotating shaft, the two top plates (14) are respectively fixed on the same sides of the two side plates (35), the two top plates (14) are respectively movably arranged above the two inclined rods (102), and the first driving piece (16) is mounted on one side plate (35) and used for driving the rotating shaft to rotate;

the inclined rod (102) is also provided with an adjusting mechanism to drive the top plate (14) above to slide along the length direction of the inclined rod;

one side of the movable bottom plate (8) is provided with a plurality of groups of clamping mechanisms for respectively clamping the bottom ends of the vacuum tubes (10), and the other side of the movable bottom plate (8) is also provided with a plurality of groups of sealing connection mechanisms which are used for supporting the bottom ends of the vacuum tubes (10) after the vacuum tubes (10) are connected with the water storage tank (103).

2. The solar water heater according to claim 1, wherein the adjusting mechanism comprises two sliding blocks (34), a screw rod (13) and a guide rod (33), wherein the two sliding blocks (34) are respectively connected to the tops of the two inclined rods (102) in a sliding manner, the inclined rods (102) on the two sides of the sliding blocks (34) are respectively fixed with a first convex plate (12) and a second convex plate (15), one sliding block (34) is in threaded fit with the screw rod (13), the other sliding block (14) is in sliding sleeve connection with the guide rod (33), the two ends of the guide rod (33) and the two ends of the screw rod (13) are respectively connected to the corresponding first convex plate (12) and the second convex plate (15), and a crank (11) is coaxially fixed at one end of the screw rod (13).

3. The solar water heater according to claim 1 or 2, characterized in that the clamping mechanism comprises a rotary plate (37), clamping plates (18) and springs (19), wherein the rotary plate (37) is connected with the movable bottom plate (8), two arc-shaped clamping plates (18) are symmetrically and slidably connected to one side of the rotary plate (37), the two clamping plates (18) are connected through a plurality of springs (19), and a clamping gap for clamping the vacuum tube (10) is formed between the two clamping plates (18).

4. A solar water heater according to claim 3, wherein the rotary plates (37) are circular plate-shaped and are coaxially and rotatably connected with the movable bottom plate (8), and a reciprocating driving mechanism is further arranged on the movable bottom plate (8) to drive each rotary plate (37) to rotate.

5. The solar water heater according to claim 4, wherein the reciprocating driving mechanism comprises a toothed plate (17) and a plurality of toothed rings (36), each outer ring of the rotary plate (37) is fixedly sleeved with the toothed ring (36), the toothed plate (17) and the movable bottom plate (8) are in sliding connection along the length direction of the toothed plate, an adjusting plate (23) is vertically fixed on one side of the toothed plate (17), a strip-shaped hole (25) is formed in the adjusting plate (23), the reciprocating driving mechanism further comprises a driving piece II (21) fixed with the movable bottom plate (8), a rotary plate (22) is connected with an output shaft of the driving piece II (21) in a driving manner, a shifting rod (24) is fixed at an eccentric position of a disc surface of the rotary plate (22), and the tail end of the shifting rod (24) is movably arranged in the strip-shaped hole (25) in a penetrating manner.

6. The solar water heater according to claim 3, characterized in that the movable bottom plate (8) is further provided with a pressing mechanism, the pressing mechanism comprises a connecting rod (30), a transverse plate (31) and a lifting plate (32), wherein the transverse plate (31) and the lifting plate (32) are arranged in parallel, the transverse plate (31) and the lifting plate (32) are connected through a plurality of connecting rods (30), one side of the transverse plate (31) close to the clamping plates (18) is provided with a plurality of pairs of ejector rods (20), each pair of ejector rods (20) is respectively positioned at two sides of the two clamping plates (18) in one group of clamping mechanisms, the movable bottom plate (8) is also provided with a telescopic piece for driving the lifting plate (32) to lift, and the lifting plate (32) drives the transverse plate (31) to be far away from or close to the clamping plate (18), so that each pair of push rods (20) drives the two corresponding clamping plates (18) to move close to or away from each other.

7. A solar water heater according to claim 1, 5 or 6, further comprising a base, wherein the base is detachably connected below the support frame and used for adjusting the support frame to rotate.

8. The solar water heater according to claim 7, wherein the base comprises two bottom plates (2) arranged in parallel, a connecting frame (3) connecting the two bottom plates (2), and a mounting plate (6) fixedly installed with the outside, a central shaft is fixed at the center of the connecting frame (3), a transmission gear (5) is sleeved on the central shaft, and a rotary driving mechanism is installed on the mounting plate (6) to drive the gear (5) to rotate.

9. A solar water heater according to claim 8, characterized in that an arc-shaped guide rail is further arranged below the base, the guide rail is slidably connected with the two bottom plates (2), and the rotary driving mechanism drives the base to slide along the guide rail.

10. The solar water heater according to claim 9, wherein the rotary driving mechanism comprises a driving plate (4) and a telescopic rod (7), wherein one end of the telescopic rod (7) is fixed with the mounting plate (6), the other end of the telescopic rod (7) is connected with the driving plate (4), and a rack meshed with the transmission gear (5) is fixed on one side of the driving plate (4);

the both ends of two bottom plates (2) are pegged graft with the bottom surface of montant (101) and down tube (102) respectively, all install locking mechanism on bottom plate (2), locking mechanism includes that the symmetry is fixed in backup pad (41) of bottom plate (2) top surface, fix central sleeve (38) between two backup pads (41) and respectively the activity peg (43) of pegging graft at central sleeve (38) both ends, the end slip of peg (43) runs through backup pad (41), and be used for pegging graft with montant (101) or down tube (102) that correspond, wherein, central sleeve (38) internal fixation has the spring of being connected with peg (43) inner, limit baffle (42) are installed to the outer end of peg (43), be equipped with on bottom plate (2) with limit lug (40) that correspond with limit baffle (42).