Pressure-bearing inner container of solar heat collector header and machining device of pressure-bearing inner container

Abstract

The invention relates to the technical field of welding positioning, in particular to a pressure-bearing inner container of a solar heat collector header and a machining device of the pressure-bearing inner container. Comprising a positioning rod; the length of the positioning rod is greater than that of the liner body; the outer diameter of the positioning rod is smaller than the inner diameter of the liner body; a notched surface is arranged at the upper position of the positioning rod; an elastic strip made of a metal material is placed on the notched surface; the notch surface is downwards provided with a telescopic groove; a telescopic strip is connected into the telescopic groove in an up-down sliding mode. The upper end of the telescopic strip is fixedly connected with an elastic strip; the telescopic strip forwards penetrates through the positioning rod; the telescopic strip is driven by the control arm to move in the telescopic groove, so that after the positioning rod is inserted into the inner side of the inner container body, the telescopic strip extends out of the telescopic groove to drive the elastic strip to shield the connecting opening, and then the sleeve is inserted into the connecting opening in the inner container body to be positioned; and the welding requirements of liner bodies with different inner diameters are met while the operation of the positioning rod is met.

Description

Technical Field

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

[0002] The solar collector header includes an outer box and an inner tank, the inner tank is placed in the outer box, a connection port is opened on the inner tank, and one end of the vacuum heat collecting tube is inserted into the outer box and the inner tank. In order to improve the sealing effect of the connection between the inner tank and the vacuum heat collecting tube, a sleeve needs to be welded at the connection port of the inner tank, and the vacuum heat collecting tube is tightly fitted in the sleeve. Since the connecting port on the inner liner is directly connected to the inner side, it is necessary to control the depth of the sleeve inserted into the connecting port during welding to avoid welding size errors. Therefore, before welding the sleeve to the connecting port on the inner liner, it is necessary to locate the welding position of the inner liner and the sleeve. Specifically, the round rod-shaped welding tool is first controlled to be inserted along the inner side of the inner liner. The outer diameter of the round rod-shaped welding tool is adapted to the inner diameter of the inner liner, so that the welding tool can block the inner edge of the connecting port on the outer wall of the inner liner, so that the sleeve is inserted into the connecting port to limit the position, thereby achieving welding positioning. However, precisely because the inner diameter of the inner liner is adapted to the outer diameter of the welding tool, the process of inserting the welding tool into the inner side of the inner liner for movement is more difficult and inconvenient, and since the outer diameter of the round rod-shaped welding tool is fixed, the function of the welding tool is single, and it cannot meet the welding requirements of inner liner with different inner diameters. Summary of the invention

[0003] In order to make up for the shortcomings of the prior art, the present invention proposes a pressure-bearing inner tank of a solar collector manifold and a processing device thereof. 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 tank body, the telescopic strip is extended from the telescopic groove to drive the elastic strip to cover the connecting port, thereby positioning the sleeve for insertion into the connecting port on the inner tank body, meeting the operation of the positioning rod while being suitable for the welding requirements of inner tank bodies with different inner diameters; in addition, the elastic strip can block the debris in the welding process to prevent the debris from entering the inner side of the inner tank body along the connecting port, thereby reducing the difficulty of cleaning the pressure-bearing inner tank after welding.

[0004] The technical solution adopted by the present invention to solve its technical problems is: the pressure-bearing inner tank processing device of the solar collector header described in the present invention comprises a positioning rod; the length of the positioning rod is greater than the length of the inner tank body; the outer diameter of the positioning rod is smaller than the inner diameter of the inner tank body; the positioning rod is provided with a notch at the upper position; an elastic strip of metal material is placed on the notch; a telescopic groove is provided downwardly on the notch; the telescopic strip is connected to the telescopic slot for sliding up and down; the upper end of the telescopic strip is fixedly connected to the elastic strip; the telescopic strip passes through the positioning rod forward; the two edges of the front end of the telescopic strip are provided with first teeth; the front end face of the positioning rod is rotatably connected to two gears; the two gears are symmetrically meshed with the first teeth; the front face of the gear is fixedly connected to a control arm extending upward; 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 tank body.

[0005] Preferably, the lower end of the telescopic strip is connected to the bottom of the telescopic slot through a first tension spring; a lower slot is provided downwardly through the bottom of the telescopic slot; an upper slot is provided at the lower end of the telescopic strip aligned with the lower slot; the lower slot is provided close to the first tooth; the lower slot is connected to the one-way rack by sliding back and forth; the front side of the one-way rack is connected to the wall of the lower slot through a spring; the inner wall of the upper slot is provided with a second tooth that is unidirectionally meshed with the one-way rack; the second tooth 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 arranged in contact with each other; and 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; the working groove is connected to a working plate in an up and down sliding seal; the lower surface of the working plate is fixedly connected to a connecting 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 connected to the root position of the first tooth through a first air hole.

[0008] Preferably, an auxiliary groove is provided on the lower outer wall of the positioning rod; the auxiliary block is connected to the auxiliary groove in a sliding seal; the direction in which the auxiliary block moves away from the bottom of the auxiliary groove is opposite to the direction in which the telescopic strip moves 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; the lower cavity is filled with a liquid medium; the connecting plate is connected to the telescopic strip in a sliding seal.

[0009] Preferably, two support grooves are provided at the lower position of the outer wall of one end of the positioning rod away from the gear; the two support grooves are distributed in a regular figure eight shape; the support strip is connected to the sliding seal in the support groove; the bottom of the support groove is connected to the lower cavity through the second liquid hole.

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

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

[0012] A pressure-bearing liner of a solar collector header, the pressure-bearing liner is processed by the pressure-bearing liner processing device of the solar collector header, the pressure-bearing liner comprises a liner body; the outer wall of the liner body is evenly provided with connecting ports along the axial direction; the inner diameter of the connecting port is smaller than the inner diameter of the liner body; the connecting port is connected to a sleeve; the end of the sleeve close to the center of the liner body is adapted to the inner wall of the liner body; the sleeve and the liner body are positioned during the welding process by the processing device.

[0013] The beneficial effects of the present invention are as follows: 1. The present invention drives the telescopic strip to move in the telescopic groove through the control arm, so that after the positioning rod is inserted into the inner side of the inner liner body, the telescopic strip is extended from the telescopic groove to drive the elastic strip to cover the connection port, thereby positioning the sleeve inserted into the connection port on the inner liner body, meeting the operation of the positioning rod and being suitable for the welding requirements of inner liner bodies with different inner diameters; in addition, the elastic strip can block the debris in the welding process to prevent the debris from entering the inner side of the inner liner body along the connection port, thereby reducing the difficulty of cleaning the pressure-bearing inner liner after welding.

[0014] 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 sheets, when the elastic sheet on the inner side of the inner liner body is in close contact, the elastic sheet on the outer side of the inner liner body will be offset from the elastic sheet on the inner side, and the elastic sheet on the outer side of the inner liner body will move to the front and rear ends of the inner liner body, thereby achieving axial limitation of the inner liner body and further improving the limiting effect during the welding process of the inner liner body.

[0015] 3. In the present invention, the direction in which the auxiliary block extends out of the auxiliary slot is opposite to the direction in which the telescopic strip extends out of the telescopic slot, so that the support strip can be quickly expanded after being inserted into the inner side of the inner liner body. When the auxiliary block extends out of the telescopic slot, the telescopic strip drives the elastic strip to quickly approach the connecting port on the inner liner body, thereby realizing rapid positioning of the inner liner body and rapid shielding of the connecting port, thereby improving welding positioning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0017] Figure 1 It is a use state diagram of the processing device in the present invention; Figure 2 yes Figure 1 The enlarged view of point A in the middle; Figure 3 yes Figure 1 A three-dimensional image from another angle; Figure 4 yes Figure 3 The enlarged view of point B in the middle; Figure 5 The present invention Figure 1 A cross-sectional view of Figure 6 yes Figure 5 Enlarged view of point C in the middle; Figure 7 yes Figure 5 The enlarged view of point D in the middle; Figure 8 is a cross-sectional view of the telescopic slot in the present invention; Fig. 9 is a cross-sectional view of the support groove in the present invention; Fig.10 is a three-dimensional diagram of a processing device in the present invention; Fig.11 It is a three-dimensional diagram of the elastic strip and the telescopic strip in the present invention; Fig.12 It is a three-dimensional diagram of the pressure-bearing liner of the present invention.

[0018] In the figure: inner liner body 1, connecting port 11, sleeve 2, positioning rod 3, missing surface 31, telescopic slot 32, gear 33, control arm 34, magnet 341, lower slot 35, auxiliary slot 36, support slot 37, elastic strip 4, elastic sheet 41, telescopic strip 5, first tooth 51, first tension spring 52, upper slot 53, second tooth 54, working slot 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 strip 8, second liquid hole 81, second tension spring 82. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0020] like Figures 1 to 12 As shown, the present invention includes the following embodiments: 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.

[0021] 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.

[0022] 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; When the upper end of the telescopic strip 5 extends out of the telescopic groove 32, it will approach the connecting port 11 on the outer wall of the inner liner body 1. The telescopic strip 5 will drive the elastic strip 4 away from the missing surface 31 and approach the connecting port 11. The shape of the elastic strip 4 tends to be flat. As the elastic strip 4 approaches the connecting port 11 on the inner liner body 1, the edge of the elastic strip 4 first contacts the inner wall of the inner liner 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 liner body 1. The telescopic strip 5 will extend out of the telescopic groove 32 to the maximum extent. The lower outer wall of the positioning rod 3 will also be close to the lower position of the inner wall of the inner liner body 1. The connecting port 11 on the inner liner body 1 is blocked by the elastic strip 4, and the end of the connecting port 11 close to the inner side of the inner liner body 1 is blocked by the elastic strip 4. The bar 4 is limited. When the control arm 34 controls the gear 33 to drive the telescopic bar 5 away from the bottom of the telescopic slot 32, it is necessary to overcome the tension of the first tension spring 52. In order to avoid the first tension spring 52 occupying the space of the telescopic bar 5, the upper end of the first tension spring 52 can be embedded in the lower part of the telescopic bar 5; when the telescopic bar 5 moves away from the bottom of the telescopic slot 32, the upper slot 53 will be driven away from the lower slot 35, and when the upper slot 53 moves away from the lower slot 35, the second tooth 54 will be driven to stagger and engage with the one-way rack 6. When the second tooth 54 moves upward, it will push the one-way rack 6 to slide in the lower slot 35 to overcome the elastic force of the spring 61. When the second tooth 54 stops moving upward, the spring 61 will push the one-way tooth to clamp the second tooth 54. In this way, the second teeth 54 are locked, so that the telescopic strip 5 cannot be retracted to the telescopic slot 32 under the pull of the first tension spring 52, thereby locking the telescopic strip 5 and the elastic strip 4. The two control arms 34 are in an "eight-shaped" shape during the downward flipping process, so that the control arms 34 can support the telescopic strip 5 and the inner liner body 1 to prevent the inner liner body 1 from rolling and shifting during the welding process. Then the welder inserts the sleeve 2 into the connecting port 11 on the inner liner body 1. The sleeve 2 is close to the inner side of the inner liner body 1. The end of the sleeve 2 contacts with the outer surface of the elastic strip 4 to achieve positioning of one end of the sleeve 2. The end of the sleeve 2 close to the inner liner body 1 is adapted to the inner wall of the inner liner body 1, that is, it is arc-shaped. Therefore, after the sleeve 2 is inserted into the connecting port 11 and limited by the elastic strip 4, it cannot rotate, thereby achieving positioning of the sleeve 2. The inner liner body 1 cannot roll due to the support of the control arm 34, so that the inner liner body 1 is more stable. Subsequently, a welding gun is used to weld along the edge of the outer end of the connecting port 11, so that the sleeve 2 is welded to the connecting port 11; The debris generated during the welding process will fall into the inner side of the sleeve 2, but because the inner end of the sleeve 2 close to the inner side of the inner tank body 1 is blocked by the elastic strip 4, the debris is difficult to enter the inner side of the inner tank body 1, thereby reducing the difficulty of subsequent cleaning of the inner tank body 1; after the welding is completed, the inner tank body 1 is turned over without unlocking the one-way rack 6, and the debris will fall out after the connecting port 11 faces downward, and finally the one-way rack 6 is pushed in the lower groove 35 to overcome the elastic force of the spring 61 and slide, and the one-way rack 6 will be separated from the second The engagement of the teeth 54 causes the second teeth 54 to be unlocked, and then the first tension spring 52 pulls the telescopic strip 5 close to the bottom of the telescopic slot 32, and the telescopic strip 5 drives the first teeth 51 and the gear 33 to transmit, and the gear 33 drives the control arm 34 to flip and reset, and the telescopic strip 5 drives the elastic strip 4 away from the connecting port 11 of the liner body 1, and the telescopic strip 5 finally retracts into the telescopic slot 32, and the elastic strip 4 finally falls on the notched surface 31, and finally the positioning rod 3 is removed from the inner side of the welded liner body 1; The present invention drives the telescopic strip 5 to move in the telescopic groove 32 through the control arm 34, so that after the positioning rod 3 is inserted into the inner side of the inner liner body 1, the telescopic strip 5 is extended from the telescopic groove 32 to drive the elastic strip 4 to cover the connecting port 11, thereby positioning the sleeve 2 inserted into the connecting port 11 on the inner liner body 1, meeting the operation of the positioning rod 3 and being suitable for the welding requirements of the inner liner body 1 with different inner diameters; in addition, the elastic strip 4 can block the debris in the welding process to prevent the debris from entering the inner side of the inner liner body 1 along the connecting port 11, thereby reducing the difficulty of cleaning the pressure-bearing inner liner after welding.

[0023] Embodiment 2: The elastic strip 4 is composed of a plurality of elastic sheets 41 ; the plurality of elastic sheets 41 are distributed in the length direction of the telescopic strip 5 ; adjacent elastic sheets 41 are arranged in contact with each other; the length of the elastic strip 4 is greater than the length of the inner liner body 1 .

[0024] In this embodiment, a working groove 55 is provided inside the telescopic strip 5; a working plate 56 is connected to the working groove 55 in an upward and downward sliding and sealing manner; 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 is connected to the root position of the first tooth 51 through a first air hole 581.

[0025] 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. 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.

[0026] 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.

[0027] 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.

[0028] In this embodiment, the support bar 8 is connected to the bottom of the support groove 37 through the 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 .

[0029] After the positioning rod 3 is inserted into the inner side of the inner tank body 1, the control arm 34 is turned 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, so that the telescopic strip 5 moves upward along the telescopic slot 32, and the telescopic strip 5 will drive the working slot 55 and the working plate 56 to slide during the upward movement, so that the space of the upper chamber 58 becomes larger and the space of the lower chamber 59 becomes smaller, and a part of the liquid medium in the lower chamber 59 will enter the auxiliary slot 36 along the first liquid hole 71, and another part of the liquid medium in the lower chamber 59 will enter the supporting slot 37 along the second liquid hole 81. Since the supporting strip 8 is connected to the bottom of the supporting slot 37 through the second tension spring 82, In the process of the support bar 8 extending out of the support groove 37, it is necessary to overcome the tension of the second tension spring 82, so that the liquid in the lower chamber 59 first enters the auxiliary groove 36 along the first liquid hole 71, thereby pushing the auxiliary block 7 along the auxiliary groove 36 away from the bottom of 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, so that the support bar 8 can be quickly expanded after being inserted into the inner side of the inner liner body 1. In 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 connecting port 11 on the inner liner body 1, so as to realize the rapid positioning of the inner liner body 1 and the rapid shielding of the connecting port 11, thereby improving the welding positioning efficiency; After the elastic strip 4 is pressed against the inner liner body 1, the friction force is relatively large, so that the inner liner body 1 and the positioning rod 3 will not be displaced in the axial direction. When the support strip 8 is extended first compared with the auxiliary block 7, the positioning rod 3 will be tilted, and finally the positioning rod 3 and the inner liner body 1 will be displaced, affecting the subsequent positioning and clamping. After the elastic strip 4 is pressed against the inner wall of the inner liner body 1, the control arm 34 continues to flip, so that the liquid in the lower cavity 59 enters the supporting groove 37 along the second liquid hole 81, thereby overcoming the pulling force of the second tension spring 82 to push the supporting strip 8 away from the supporting groove 37, so that the supporting strip 8 is extended. After the two support strips 8 are extended, they press against the two sides of the inner liner body 1 on one hand, avoiding the inner liner body 1 Roll to achieve positioning, and on the other hand, balance the control arm 34. The control arm 34 will be turned down to form a support, and in cooperation with the support bar 8, the height difference between the two ends of the positioning rod 3 is small, so that the inner liner body 1 can be welded in a relatively stable environment, thereby improving the subsequent welding effect; after completing the welding of the sleeve 2 and the inner liner body 1, the control arm 34 will flip upward and reset, the telescopic bar 5 will retract to the telescopic groove 32, the upper cavity 58 will become smaller, and the space of the lower cavity 59 will become larger, the medium in the support groove 37 and the auxiliary groove 36 will flow back into the lower cavity 59, and the support bar 8 will retract to the support groove 37, so that the positioning rod 3 can be withdrawn from the inner side of the inner liner body 1, and the auxiliary block 7 will also retract into the auxiliary groove 36.

[0030] Embodiment 4: A magnet 341 is embedded in one end of the control arm 34 away from the gear 33 ; the two magnets 341 have opposite magnetic properties.

[0031] During the transfer and movement of the positioning rod 3, the ends of the two control arms 34 away from the gear 33 are attracted to each other due to the setting of the magnet 341, thereby preventing the control arm 34 from flipping over and causing the telescopic strip 5 to extend out of the telescopic slot 32, so that the positioning rod 3 maintains a smaller diameter to penetrate the inner side of the inner liner body 1, thereby improving the convenience of using the processing device. After the positioning rod 3 passes through the inner liner body 1, when positioning is required during the welding process, the control arm 34 will flip downward. After the two control arms 34 are flipped, the two magnets 341 will be attracted to each other again, thereby further locking the two control arms 34 and improving the stability of the elastic strip 4 against the inner wall of the inner liner body 1.

[0032] Embodiment 5: A pressure-bearing liner of a solar collector manifold, which is processed by the pressure-bearing liner processing device of the solar collector manifold mentioned above, and the pressure-bearing liner comprises a liner body 1; the outer wall of the liner body 1 is evenly provided with connecting ports 11 along the axial direction; the inner diameter of the connecting port 11 is smaller than the inner diameter of the liner body 1; the connecting port 11 is plugged with a sleeve 2; the sleeve 2 is adapted to the inner wall of the liner body 1 at one end close to the center of the liner body 1; the sleeve 2 and the liner body 1 are positioned during the welding process by the processing device.

[0033] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A pressure-bearing 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 liner body; characterized in that: The outer diameter of the positioning rod is smaller than the inner diameter of the inner liner body; a notch is provided at the upper position of the positioning rod; an elastic strip of metal material is placed on the notch; a telescopic groove is provided downwardly on the notch; the telescopic strip is connected to the telescopic slot so as to slide up and down; the upper end of the telescopic strip is fixedly connected to the elastic strip; the telescopic strip passes through the positioning rod forward; first teeth are provided on both edges of the front end of the telescopic strip; the front end face of the positioning rod is rotatably connected to two gears; the two gears are symmetrically meshed with the first teeth; the front face of the gear is fixedly connected to a control arm extending upward; 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.

2. The pressure-bearing liner processing device of a solar collector header according to claim 1 is characterized in that: The lower end of the telescopic strip is connected to the bottom of the telescopic slot through a first tension spring; a lower slot is provided downwardly through the bottom of the telescopic slot; an upper slot is provided at the lower end of the telescopic strip aligned with the lower slot; the lower slot is provided close to the first tooth; the lower slot is connected to the one-way rack by sliding forward and backward; the front side of the one-way rack is connected to the wall of the lower slot through a spring; the inner wall of the upper slot is provided with a second tooth that is unidirectionally meshed with the one-way rack; the second tooth can move upward freely relative to the one-way rack.

3. The pressure-bearing liner processing device of a solar collector header according to claim 1, characterized in that: The elastic strip is composed of a plurality of elastic sheets; the plurality of elastic sheets are distributed in the length direction of the telescopic strip; adjacent elastic sheets are arranged in contact with each other; and the length of the elastic strip is greater than the length of the inner liner body.

4. The pressure-bearing liner processing device of a solar collector header according to claim 3 is characterized in that: A working groove is provided inside the telescopic strip; the working groove is connected to a working plate in an up-and-down sliding seal; the lower surface of the working plate is fixedly connected to a connecting 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 connected to the root position of the first tooth through a first air hole.

5. The pressure-bearing liner processing device of a solar collector header according to claim 4, characterized in that: The positioning rod is provided with an auxiliary groove near the lower outer wall; the auxiliary groove is slidably and sealably connected to an auxiliary block; the direction in which the auxiliary block is away from the bottom of the auxiliary groove is opposite to the direction in which the telescopic strip is 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; the lower cavity is filled with a liquid medium; the connecting plate is slidably and sealably connected to the telescopic strip.

6. The pressure-bearing liner processing device of a solar collector header according to claim 5, characterized in that: Two support grooves are arranged 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 regular figure eight shape; the support strip is connected to the sliding seal in the support groove; the bottom of the support groove is connected to the lower cavity through the second liquid hole.

7. The pressure-bearing liner processing device of a solar collector header according to claim 6, characterized in that: The support bar is connected to the bottom of the support groove through a second tension spring; the support bar extends out along the support groove after the auxiliary block extends out of the support groove.

8. The pressure-bearing liner processing device of a solar collector header according to claim 6, characterized in that: A magnet is embedded in one end of the control arm away from the gear; the two magnets have opposite magnetic properties.

9. A pressure-bearing liner of a solar collector header, the pressure-bearing liner being processed by the pressure-bearing liner processing device of a solar collector header according to any one of claims 1 to 8, characterized in that: The pressure-bearing liner includes an liner body; the outer wall of the liner body is evenly provided with connecting ports along the axial direction; the inner diameter of the connecting port is smaller than the inner diameter of the liner body; the connecting port is connected to a sleeve; the end of the sleeve close to the center of the liner body is adapted to the inner wall of the liner body; the sleeve and the liner body are positioned during the welding process by a processing device.

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