A pressure-bearing inner tank of a solar collector header and its processing device

Abstract

The present invention relates to the technical field of welding positioning, specifically to a pressure-bearing inner liner of a solar collector header and its processing device; it includes a positioning rod; the length of the positioning rod is greater than the length of the inner liner body; the outer diameter of the positioning rod is smaller than the inner diameter of the inner liner body; a missing surface is arranged at the upper position of the positioning rod; an elastic strip made of metal material is placed on the missing surface; a telescopic groove is arranged downward on the missing surface; a telescopic strip is slidably connected up and down in the telescopic groove; the upper end of the telescopic strip is fixedly connected to the elastic strip; the telescopic strip penetrates through the positioning rod forward; the present invention drives the telescopic strip to move in the telescopic groove through a control arm, so that after the positioning rod is inserted into the inner side of the inner liner body, the elastic strip is driven by the telescopic strip extending out of the telescopic groove to block the connection port, thereby positioning the sleeve for inserting into the connection port on the inner liner body, meeting the operation of the positioning rod and being applicable to the welding requirements of inner liner bodies with different inner diameters.

Description

Technical Field

[0001] The present invention relates to the technical field of welding positioning, and specifically relates to a pressure-bearing inner liner of a solar collector header and a processing device thereof. Background Art

[0002] A solar collector header includes an outer box body and an inner liner. The inner liner is placed in the outer box body. A connection port is opened on the inner liner. One end of a vacuum heat collecting tube is inserted into the outer box body and the inner liner. In order to improve the sealing effect at the connection between the inner liner and the vacuum heat collecting tube, a sleeve needs to be welded at the connection port of the inner liner first, and the vacuum heat collecting tube is tightly fitted in the sleeve. Since the connection port on the inner liner is directly connected to the inside, it is necessary to control the depth of the sleeve inserted into the connection port during the welding process to avoid welding dimension errors. Therefore, before welding the sleeve into the connection port on the inner liner, it is necessary to position the welding position of the inner liner and the sleeve. Specifically, a round bar-shaped welding tooling is first controlled to be inserted along the inside of the inner liner. The outer diameter of the round bar-shaped welding tooling is adapted to the inner diameter of the inner liner, so that the welding tooling can block the inner edge of the connection port on the outer wall of the inner liner. In this way, when the sleeve is inserted into the connection port, it is limited, and then the welding positioning is realized. However, precisely because the inner diameter of the inner liner is adapted to the outer diameter of the welding tooling, the process of inserting the welding tooling into the inside of the inner liner for movement is relatively difficult and inconvenient. And because the outer diameter of the round bar-shaped welding tooling is fixed, the function of the welding tooling is single and cannot meet the welding requirements of inner liners with different inner diameters. Summary of the Invention

[0003] In order to make up for the deficiencies of the prior art, the present invention provides a pressure-bearing inner liner of a solar collector header and a processing device thereof. The present invention drives a telescopic strip to move in a telescopic groove through a control arm. After the positioning rod is inserted into the inside of the inner liner body, the telescopic strip is driven to extend out of the telescopic groove to drive an elastic strip to block the connection port, thereby positioning the sleeve inserted into the connection port on the inner liner body, meeting the operation requirements of the positioning rod and being applicable to the welding requirements of inner liner bodies with different inner diameters. In addition, the elastic strip can block debris during the welding process to avoid the debris from entering the inside of the inner liner body along the connection port, thereby reducing the cleaning difficulty of the pressure-bearing inner liner after welding.

[0004] The technical solution adopted by the present invention to solve its technical problems is as follows: A pressure-bearing inner liner processing device for a solar collector header of the present invention includes a positioning rod; the length of the positioning rod is greater than the length of the inner liner body; the outer diameter of the positioning rod is smaller than the inner diameter of the inner liner body; a missing surface is provided at the upper position of the positioning rod; an elastic strip made of a metal material is placed on the missing surface; a telescopic groove is provided downward on the missing surface; a telescopic strip is slidably connected up and down in the telescopic groove; the upper end of the telescopic strip is fixedly connected to the elastic strip; the telescopic strip penetrates through the positioning rod forward; first teeth are provided at the two edges of the front end of the telescopic strip; two gears are rotatably connected to the front end surface of the positioning rod; the two gears symmetrically mesh with the first teeth; a control arm extending upward is fixedly connected to the front surface of the gear; the two control arms can drive the telescopic strip and the elastic strip to move upward through the gears; the length of the control arm is greater than the inner diameter of the inner liner body.

[0005] Preferably, the lower end of the telescopic strip is connected to the bottom of the telescopic groove through a first tension spring; a lower groove is provided downward through the bottom of the telescopic groove; an upper groove is provided at the lower end of the telescopic strip in alignment with the lower groove; the lower groove is provided close to the first teeth; a one-way rack is slidably connected back and forth in the lower groove; the front surface of the one-way rack is connected to the inner wall of the lower groove through a spring; second teeth that are unidirectionally meshed with the one-way rack are provided on the inner wall of the upper groove; the second teeth can move upward freely relative to the one-way rack.

[0006] Preferably, the elastic strip is composed of a combination of multiple elastic sheets; the multiple elastic sheets are distributed in the length direction of the telescopic strip; adjacent elastic sheets are in contact with each other; the length of the elastic strip is greater than the length of the inner liner body.

[0007] Preferably, a working groove is provided inside the telescopic strip; a working plate is slidably and sealingly connected up and down in the working groove; a connecting plate is fixedly connected to the lower surface of the working plate; the lower end of the connecting plate passes through the telescopic strip and is fixedly connected to the bottom of the telescopic groove; the working plate divides the working groove into an upper cavity and a lower cavity; the upper cavity is internally connected to the root position of the first teeth through a first air hole.

[0008] Preferably, an auxiliary groove is provided on the lower outer wall of the positioning rod; an auxiliary block is slidably and sealingly connected in the auxiliary groove; the direction of the auxiliary block away from the bottom of the auxiliary groove is opposite to the direction of the telescopic strip away from the bottom of the telescopic groove; the bottom of the auxiliary groove is connected to the lower cavity through a first liquid hole; a liquid medium is filled in the lower cavity; the connecting plate is slidably and sealingly connected to the telescopic strip.

[0009] Preferably, two support grooves are provided at the lower position of the outer wall of the end of the positioning rod away from the gear; the two support grooves are distributed in a positive eight-shaped pattern; a support strip is slidably and sealingly connected in the support groove; the bottom of the support groove is connected to the lower cavity through a second liquid hole.

[0010] Preferably, the support bar is connected to the bottom of the support groove by a second tension spring; the support bar extends along the support groove after the auxiliary block extends out of the support groove.

[0011] Preferably, a magnet is embedded at one end of the control arm away from the gear; the two magnets have opposite magnetic polarities.

[0012] A pressure-bearing inner tank of a solar collector header, which is processed by the above-mentioned processing device for the pressure-bearing inner tank of the solar collector header. The pressure-bearing inner tank includes an inner tank body; connecting ports are uniformly arranged along the axial direction on the outer wall of the inner tank body; the inner diameter of the connecting port is smaller than the inner diameter of the inner tank body; a sleeve is inserted into the connecting port; one end of the sleeve close to the center of the inner tank body is adapted to the inner wall of the inner tank body; the sleeve and the inner tank body are positioned during the welding process by the processing device.

[0013] The beneficial effects of the present invention are as follows:

[0014] 1. In the present invention, the control arm drives the telescopic strip to move in the telescopic groove, so that after the positioning rod is inserted into the inner side of the inner tank body, the telescopic strip extends out of the telescopic groove to drive the elastic strip to block the connecting port, thereby positioning the sleeve inserted into the connecting port on the inner tank body, meeting the operation of the positioning rod and being applicable to the welding requirements of inner tank bodies with different inner diameters; in addition, the elastic strip can block the debris during the welding process, preventing the debris from entering the inner side of the inner tank body along the connecting port, thereby reducing the cleaning difficulty of the pressure-bearing inner tank after welding.

[0015] 2. In the present invention, since the shape of the elastic strip tends to be flat and the elastic strip is composed of multiple elastic pieces, when the elastic pieces on the inner side of the inner tank body are in close contact, the elastic pieces on the outer side of the inner tank body will be staggered from the inner elastic pieces, and the elastic pieces on the outer side of the inner tank body will move to the front and rear ends of the inner tank body, realizing the axial limit of the inner tank body and further improving the limiting effect during the welding process of the inner tank body.

[0016] 3. In the present invention, the direction in which the auxiliary block extends out of the auxiliary groove is opposite to the direction in which the telescopic strip extends out of the telescopic groove, so that the support bar can be quickly expanded after being inserted into the inner side of the inner tank body. The telescopic strip drives the elastic strip to quickly approach the connecting port on the inner tank body during the process of the auxiliary block extending out of the telescopic groove, realizing the quick positioning of the inner tank body and also realizing the quick blocking of the connecting port, improving the welding positioning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the drawings and embodiments.

[0018] Figure 1 is a diagram showing the use state of the processing device in the present invention;

[0019] Figure 2 isFigure 1 Enlarged view of part A;

[0020] Figure 3 is Figure 1 Stereogram from another angle;

[0021] Figure 4 is Figure 3 Enlarged view of part B;

[0022] Figure 5 is the Figure 1 Cross-sectional view of the present invention;

[0023] Figure 6 is Figure 5 Enlarged view of part C;

[0024] Figure 7 is Figure 5 Enlarged view of part D;

[0025] Figure 8 is the cross-sectional view of the telescopic groove in the present invention;

[0026] Figure 9 is the cross-sectional view of the support groove in the present invention;

[0027] Figure 10 is the stereogram of the processing device in the present invention;

[0028] Figure 11 is the stereogram of the elastic strip and the telescopic strip in the present invention;

[0029] Figure 12 is the stereogram of the pressure-bearing inner tank in the present invention.

[0030] In the figure: inner tank body 1, connection port 11, sleeve 2, positioning rod 3, missing surface 31, telescopic groove 32, gear 33, control arm 34, magnet 341, lower groove 35, auxiliary groove 36, support groove 37, elastic strip 4, elastic sheet 41, telescopic strip 5, first tooth 51, first tension spring 52, upper groove 53, second tooth 54, working groove 55, working plate 56, connecting plate 57, upper cavity 58, first air hole 581, lower cavity 59, one-way rack 6, spring 61, auxiliary block 7, first liquid hole 71, support bar 8, second liquid hole 81, second tension spring 82. Specific embodiments

[0031] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0032] As Figures 1 to 12 shown, the present invention includes the following embodiments:

[0033] Embodiment 1: A pressure-bearing liner processing device for a solar collector manifold, comprising a positioning rod 3; the length of the positioning rod 3 is greater than the length of the liner body 1; the outer diameter of the positioning rod 3 is smaller than the inner diameter of the liner body 1; a notch 31 is provided at the upper position of the positioning rod 3; an elastic strip 4 of a metal material is placed on the notch 31; a telescopic groove 32 is provided downwardly on the notch 31; a telescopic strip 5 is connected to the telescopic groove 32 for sliding up and down; the upper end of the telescopic strip 5 is fixedly connected to the elastic strip 4; the telescopic strip 5 penetrates the positioning rod 3 forward; the two edges of the front end of the telescopic strip 5 are provided with first teeth 51; the front end face of the positioning rod 3 is rotatably connected to two gears 33; the two gears 33 are symmetrically meshed with the first teeth 51; the front face of the gear 33 is fixedly connected to a control arm 34 extending upward; the two control arms 34 can drive the telescopic strip 5 and the elastic strip 4 to move upward through the gear 33; the length of the control arm 34 is greater than the inner diameter of the liner body 1.

[0034] In this embodiment, the lower end of the telescopic strip 5 is connected to the bottom of the telescopic slot 32 through a first tension spring 52; a lower slot 35 is provided downwardly through the bottom of the telescopic slot 32; an upper slot 53 is provided at the lower end of the telescopic strip 5 in alignment with the lower slot 35; the lower slot 35 is provided close to the first tooth 51; the lower slot 35 is connected to the one-way rack 6 by sliding back and forth; the front side of the one-way rack 6 is connected to the wall of the lower slot 35 through a spring 61; the inner wall of the upper slot 53 is provided with a second tooth 54 that is unidirectionally meshed with the one-way rack 6; the second tooth 54 can move upward freely relative to the one-way rack 6.

[0035] When the liner body 1 is placed at the position to be welded, the rear end of the control processing device is inserted along the front end of the liner body 1. The outer diameter of the positioning rod 3 of the processing device is smaller than the inner diameter of the liner body 1, so that the positioning rod 3 enters the liner body 1 and moves in the liner body 1 more smoothly. After the rear end of the positioning rod 3 passes through the liner body 1, the connection port 11 on the outer wall of the liner body 1 is kept directly above the missing surface 31, and the two control arms 34 are moved to rotate around the corresponding gears 33. The control arms 34 will drive the gear 33 to rotate, and the gear 33 is meshed with the first tooth 51 at the front end of the telescopic strip 5. Therefore, during the rotation of the gear 33, the telescopic strip 5 will be driven to slide along the telescopic groove 32 and away from the bottom of the telescopic groove 32;

[0036] During the process that the upper end of the telescopic strip 5 extends out of the telescopic groove 32, it will approach the connection port 11 on the outer wall of the inner tank body 1. The telescopic strip 5 will drive the elastic strip 4 away from the missing surface 31 and close to the connection port 11. The shape of the elastic strip 4 tends to be flat. As the elastic strip 4 approaches the connection port 11 on the inner tank body 1, the edge of the elastic strip 4 first contacts the inner wall of the inner tank body 1. As the telescopic strip 5 moves upward, the upper surface of the elastic strip 4 will gradually bend and fit the inner wall of the inner tank body 1. The telescopic strip 5 will extend out of the telescopic groove 32 to the maximum extent, and the lower outer wall of the positioning rod 3 will also closely adhere to the lower position of the inner wall of the inner tank body 1. The connection port 11 on the inner tank body 1 is blocked by the elastic strip 4, and the end of the connection port 11 close to the inner side of the inner tank body 1 is limited by the elastic strip 4. During the process that the control arm 34 controls the gear 33 to drive the telescopic strip 5 away from the bottom of the telescopic groove 32, it is necessary to overcome the pulling force of the first tension spring 52. In order to avoid the first tension spring 52 occupying the space of the telescopic strip 5, the upper end of the first tension spring 52 can be embedded into the interior of the lower position of the telescopic strip 5. During the process that the telescopic strip 5 moves away from the bottom of the telescopic groove 32, it will drive the upper groove 53 away from the lower groove 35. During the process that the upper groove 53 moves away from the lower groove 35, it will drive the second tooth 54 to be disengaged and engaged with the one-way rack 6. During the upward movement of the second tooth 54, it will push the one-way rack 6 to slide in the lower groove 35 against the elastic force of the spring 61. And when the second tooth 54 stops moving upward, the spring 61 will push the one-way tooth to lock the second tooth 54;

[0037] In this way, the second tooth 54 is locked, so that the telescopic strip 5 cannot be retracted into the telescopic groove 32 under the pulling of the first tension spring 52, realizing the locking of the telescopic strip 5 and the elastic strip 4. During the downward flipping process of the two control arms 34, they are in a "V-shape", so that the control arms 34 can support the telescopic strip 5 and the inner tank body 1, avoiding the rolling and displacement of the inner tank body 1 during the welding process. Then the welder inserts the sleeve 2 into the connection port 11 on the inner tank body 1. The end of the sleeve 2 close to the inner side of the inner tank body 1 contacts the outer surface of the elastic strip 4, realizing the positioning of one end of the sleeve 2. The end of the sleeve 2 close to the inner tank body 1 is adapted to the inner wall of the inner tank body 1, that is, it is arc-shaped. Therefore, after the sleeve 2 is inserted into the connection port 11 and limited by the elastic strip 4, it cannot rotate, realizing the positioning of the sleeve 2. The inner tank body 1 cannot roll due to the support of the control arms 34, so that the inner tank body 1 is more stable. Subsequently, a welding torch is used to weld along the edge of the outer end of the connection port 11, thereby welding the sleeve 2 to the connection port 11;

[0038] During the welding process, the debris generated will fall inside the sleeve 2. However, since one end of the inner side of the sleeve 2 close to the inner side of the inner tank body 1 is blocked by the elastic strip 4, it is difficult for the debris to enter the inner side of the inner tank body 1, thereby reducing the subsequent cleaning difficulty of the inner tank body 1. After welding is completed, without unlocking the one-way rack 6, the inner tank body 1 is flipped. When the connection port 11 faces downward, the debris will fall out. Finally, the one-way rack 6 is toggled to slide in the lower groove 35 against the elastic force of the spring 61. The one-way rack 6 will disengage from the engagement with the second tooth 54, unlocking the second tooth 54. Subsequently, the first tension spring 52 pulls the telescopic strip 5 close to the bottom of the telescopic groove 32. The telescopic strip 5 will drive the first tooth 51 and the gear 33 to transmit. The gear 33 will drive the control arm 34 to flip and reset. The telescopic strip 5 will drive the elastic strip 4 away from the connection port 11 of the inner tank body 1. The telescopic strip 5 will finally retract into the telescopic groove 32, and the elastic strip 4 will finally fall on the missing surface 31. Finally, the positioning rod 3 can be withdrawn from the inner side of the welded inner tank body 1.

[0039] In the present invention, the control arm 34 drives the telescopic strip 5 to move in the telescopic groove 32, so that after the positioning rod 3 is inserted into the inner side of the inner tank body 1, the telescopic strip 5 extends out of the telescopic groove 32 to drive the elastic strip 4 to block the connection port 11, thereby positioning the sleeve 2 to be inserted into the connection port 11 on the inner tank body 1, meeting the operation requirements of the positioning rod 3 and being applicable to the welding requirements of inner tank bodies 1 with different inner diameters. In addition, the elastic strip 4 can block the debris during the welding process, preventing the debris from entering the inner side of the inner tank body 1 along the connection port 11, thereby reducing the cleaning difficulty of the pressure-bearing inner tank after welding.

[0040] Embodiment 2: The elastic strip 4 is composed of a combination of a plurality of elastic pieces 41; the plurality of elastic pieces 41 are distributed in the length direction of the telescopic strip 5; adjacent elastic pieces 41 are in contact with each other; the length of the elastic strip 4 is greater than the length of the inner tank body 1.

[0041] In this embodiment, a working groove 55 is provided inside the telescopic strip 5; a working plate 56 is slidably and sealingly connected up and down in the working groove 55; a connecting plate 57 is fixedly connected to the lower surface of the working plate 56; the lower end of the connecting plate 57 passes through the telescopic strip 5 and is fixedly connected to the bottom of the telescopic groove 32; the working plate 56 divides the working groove 55 into an upper cavity 58 and a lower cavity 59; the upper cavity 58 communicates with the root position of the first tooth 51 through a first air hole 581.

[0042] After the positioning rod 3 is inserted into the inner side of the inner liner body 1, the control arm 34 is flipped downward to ensure that the rear end and the front end of the elastic strip 4 are both exposed to the inner side of the inner liner body 1. The control arm 34 drives the gear 33 to rotate, and the gear 33 drives the telescopic strip 5 to move upward during the rotation process. The telescopic strip 5 drives the working groove 55 to move upward during the upward movement. The working groove 55 slides with the working plate 56 during the upward movement. The working plate 56 is fixedly connected to the bottom of the telescopic slot 32 through the connecting plate 57. During the upward movement of the telescopic strip 5, the space of the upper cavity 58 becomes larger and the space of the lower cavity 59 becomes smaller.

[0043] As the space of the upper cavity 58 becomes larger, negative pressure is formed, and external gas will enter the first air hole 581 along the root of the first tooth 51, and finally enter the upper cavity 58 along the first air hole 581 for replenishment. As the telescopic strip 5 extends out of the telescopic slot 32, it will drive the elastic strip 4 to approach the connecting port 11 of the inner liner body 1, and finally the elastic strip 4 will bend to fit the inner wall of the inner liner body 1 and cover the connecting port 11 of the inner liner body 1. Since the shape of the elastic strip 4 tends to be flat, and the elastic strip 4 is composed of a plurality of elastic sheets 41, when the elastic sheet 41 on the inner side of the inner liner body 1 is in close contact, the elastic sheet 41 on the outer side of the inner liner body 1 will be staggered with the elastic sheet 41 on the inner side, and the elastic sheet 41 on the outer side of the inner liner body 1 will be offset from the elastic sheet 41 on the inner side. The elastic sheet 41 on the side will move to the front and rear ends of the inner liner body 1 to achieve axial limitation of the inner liner body 1, further improving the limiting effect of the inner liner body 1 during welding; after welding is completed, the control arm 34 will flip upward and reset, and the gear 33 will drive the telescopic bar 5 to move close to the bottom of the telescopic slot 32, and the telescopic bar 5 will move with the working plate 56, the space of the upper chamber 58 will become smaller, and the space of the lower chamber 59 will become larger, and the gas in the upper chamber 58 will be discharged along the first air hole 581, so that the gas is discharged from the root position of the first tooth 51, so as to wash away the debris generated during the welding process, avoid the debris from affecting the transmission of the first tooth 51 and the gear 33, and make the processing device more stable.

[0044] Embodiment 3: The positioning rod 3 is provided with an auxiliary groove 36 on the lower outer wall; the auxiliary groove 36 extends into the connecting plate 57; the auxiliary block 7 is connected in a sliding and sealing manner inside the auxiliary groove 36; the direction in which the auxiliary block 7 moves away from the bottom of the auxiliary groove 36 is opposite to the direction in which the telescopic strip 5 moves away from the bottom of the telescopic groove 32; the bottom of the auxiliary groove 36 is connected to the lower cavity 59 through the first liquid hole 71; the lower cavity 59 is filled with a liquid medium; the connecting plate 57 is connected to the telescopic strip 5 in a sliding and sealing manner.

[0045] In this embodiment, two support grooves 37 are provided at the lower position of the outer wall of the end of the positioning rod 3 away from the gear 33; the two support grooves 37 are distributed in a regular figure eight shape; the support groove 37 is slidingly sealed and connected to the support bar 8; the bottom of the support groove 37 is connected to the lower cavity 59 through the second liquid hole 81.

[0046] In this embodiment, the support bar 8 is connected to the bottom of the support groove 37 through a second tension spring 82; the support bar 8 extends along the support groove 37 after the auxiliary block 7 extends out of the support groove 37.

[0047] After the positioning rod 3 is inserted into the inner side of the inner tank body 1, the control arm 34 is toggled to turn downward. The control arm 34 will drive the gear 33 to rotate, and the gear 33 will drive the first tooth 51 to move upward. In this way, the telescopic bar 5 moves upward along the telescopic groove 32. During the upward movement of the telescopic bar 5, it will drive the working groove 55 and the working plate 56 to slide. In this way, the space of the upper cavity 58 becomes larger, and the space of the lower cavity 59 becomes smaller. A part of the liquid medium in the lower cavity 59 will enter the auxiliary groove 36 along the first liquid hole 71, and another part of the liquid medium in the lower cavity 59 will enter the support groove 37 along the second liquid hole 81. Since the support bar 8 is connected to the bottom of the support groove 37 through the second tension spring 82, when the support bar 8 extends out of the support groove 37, it needs to overcome the pulling force of the second tension spring 82. In this way, the liquid in the lower cavity 59 first enters the auxiliary groove 36 along the first liquid hole 71, thereby pushing the auxiliary block 7 away from the bottom of the auxiliary groove 36 along the auxiliary groove 36. The direction in which the auxiliary block 7 extends out of the auxiliary groove 36 is opposite to the direction in which the telescopic bar 5 extends out of the telescopic groove 32. In this way, the support bar 8 can be quickly expanded after being inserted into the inner side of the inner tank body 1. During the process of the auxiliary block 7 extending out of the telescopic groove 32, the telescopic bar 5 drives the elastic bar 4 to quickly approach the connection port 11 on the inner tank body 1, realizing the rapid positioning of the inner tank body 1 and also realizing the rapid occlusion of the connection port 11, improving the welding positioning efficiency;

[0048] After the elastic strip 4 presses tightly against the inner tank body 1, the frictional force is relatively large, so that the inner tank body 1 and the positioning rod 3 will not shift axially. When the support strip 8 extends out earlier than the auxiliary block 7, it will cause the positioning rod 3 to tilt, and finally cause the positioning rod 3 and the inner tank body 1 to shift, affecting subsequent positioning and clamping. After the elastic strip 4 presses against the inner wall of the inner tank body 1, the control arm 34 continues to flip, so that the liquid in the lower cavity 59 enters the support groove 37 along the second liquid hole 81, thereby overcoming the pulling force of the second tension spring 82 and pushing the support strip 8 away from the support groove 37, so that the support strip 8 extends out. After the two support strips 8 extend out, on the one hand, they press against both sides of the inner tank body 1 to prevent the inner tank body 1 from rolling and achieve positioning. On the other hand, they balance the control arm 34. When the control arm 34 flips down, it will form a support. In cooperation with the support strip 8, the heights of both ends of the positioning rod 3 are less different, so that the inner tank body 1 can be welded in a relatively stable environment, improving the subsequent welding effect; after the welding of the sleeve 2 and the inner tank body 1 is completed, the control arm 34 will flip up and reset, the telescopic strip 5 will retract into the telescopic groove 32, the upper cavity 58 will become smaller, the space of the lower cavity 59 will become larger, and the media in the support groove 37 and the auxiliary groove 36 will flow back into the lower cavity 59, and the support strip 8 will retract into the support groove 37 to facilitate the extraction of the positioning rod 3 from the inside of the inner tank body 1, and the auxiliary block 7 will also retract into the auxiliary groove 36.

[0049] Embodiment 4: A magnet 341 is embedded at one end of the control arm 34 away from the gear 33; the two magnets 341 have opposite magnetic polarities.

[0050] During the transfer and movement of the positioning rod 3, the two ends of the control arm 34 away from the gear 33 attract each other due to the arrangement of the magnets 341, so as to prevent the control arm 34 from flipping and causing the telescopic strip 5 to extend out of the telescopic groove 32, so that the positioning rod 3 penetrates into the inside of the inner tank body 1 with a smaller diameter, thus improving the convenience of use of the processing device. When welding and positioning are required after the positioning rod 3 penetrates the inner tank body 1, the control arm 34 will flip down, and after the two control arms 34 flip, the two magnets 341 will approach and attract again, realizing further locking of the two control arms 34 and improving the stability of the elastic strip 4 pressing against the inner wall of the inner tank body 1.

[0051] Embodiment 5: A pressure-bearing inner tank of a solar collector header, which is processed by using the above-mentioned processing device for the pressure-bearing inner tank of the solar collector header. The pressure-bearing inner tank includes an inner tank body 1; connection ports 11 are uniformly arranged along the axial direction on the outer wall of the inner tank body 1; the inner diameter of the connection port 11 is smaller than the inner diameter of the inner tank body 1; the connection port 11 is inserted with a sleeve 2; one end of the sleeve 2 close to the center of the inner tank body 1 is adapted to the inner wall of the inner tank body 1; the sleeve 2 and the inner tank body 1 are positioned during the welding process by the processing device.

[0052] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the Figure 1 orientation or positional relationship shown, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the protection scope of the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure-bearing inner liner processing device for a solar collector header, comprising a positioning rod; the length of the positioning rod is greater than the length of the inner liner body; characterized in that: The outer diameter of the positioning rod is smaller than the inner diameter of the inner container body; a notch is provided at the upper position of the positioning rod; an elastic strip made of a metal material is placed in the notch; a telescopic groove is provided downward in the notch; a telescopic strip is slidably connected up and down in the telescopic groove; the upper end of the telescopic strip is fixedly connected to the elastic strip; the telescopic strip penetrates through the positioning rod forward; first teeth are provided at the two edges of the front end of the telescopic strip; two gears are rotatably connected to the front end face of the positioning rod; the two gears symmetrically engage with the first teeth; a control arm extending upward is fixedly connected to the front face of each gear; the two control arms can drive the telescopic strip and the elastic strip to move upward through the gears; the length of the control arm is greater than the inner diameter of the inner container body. A working groove is provided inside the telescopic strip; a working plate is slidably and sealingly connected up and down in the working groove; a connecting plate is fixedly connected to the lower surface of the working plate; the lower end of the connecting plate passes through the telescopic strip and is fixedly connected to the bottom of the telescopic groove; the working plate divides the working groove into an upper cavity and a lower cavity; the upper cavity is communicated with the root position of the first teeth through a first air hole. An auxiliary groove is provided on the lower outer wall of the positioning rod; an auxiliary block is slidably and sealingly connected in the auxiliary groove; the direction of the auxiliary block away from the bottom of the auxiliary groove is opposite to the direction of the telescopic strip away from the bottom of the telescopic groove; the bottom of the auxiliary groove is communicated with the lower cavity through a first liquid hole; a liquid medium is filled in the lower cavity; the connecting plate is slidably and sealingly connected to the telescopic strip. Two support grooves are provided at the lower position of the outer wall of the end of the positioning rod away from the gear; the two support grooves are distributed in a positive eight-character shape; a support strip is slidably and sealingly connected in the support grooves; the bottom of the support groove is communicated with the lower cavity through a second liquid hole. The support strip is connected to the bottom of the support groove through a second tension spring; the support strip extends out along the support groove after the auxiliary block extends out of the support groove.

2. The pressure-bearing inner liner processing device for a solar collector header according to claim 1, wherein: The lower end of the telescopic strip is connected to the bottom of the telescopic groove through a first tension spring; a lower groove is provided downwardly through the bottom of the telescopic groove; an upper groove is provided in alignment with the lower end of the telescopic strip; the lower groove is close to the first teeth; a one-way rack is slidably connected back and forth in the lower groove; the front face of the one-way rack is connected to the wall of the lower groove through a spring; second teeth that are unidirectionally engaged with the one-way rack are provided on the inner wall of the upper groove; the second teeth can move upward freely relative to the one-way rack.

3. A processing device for a pressure-bearing inner liner of a solar collector header, characterized in that: The elastic strip is composed of a combination of multiple elastic pieces; the multiple elastic pieces are distributed in the length direction of the telescopic strip; adjacent elastic pieces are in contact with each other; the length of the elastic strip is greater than the length of the inner container body.

4. A processing device for the pressure-bearing inner liner of a solar collector header, characterized in that: Magnets are embedded at the ends of the control arms away from the gears; the two magnets have opposite magnetic polarities.

5. A pressure-bearing inner liner of a solar collector header, which is processed by using the processing device for the pressure-bearing inner liner of the solar collector header described in any one of claims 1-4, and is characterized in that: The pressure-bearing inner container includes an inner container body; connection ports are uniformly arranged along the axial direction on the outer wall of the inner container body; the inner diameter of the connection ports is smaller than the inner diameter of the inner container body; sleeves are inserted into the connection ports; the end of the sleeve close to the center of the inner container body is adapted to the inner wall of the inner container body; the sleeves and the inner container body are positioned during the welding process by a processing device.

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