Heat treatment equipment for stainless steel pipe fittings

Abstract

The present invention relates to the technical field of valve positioners, and specifically to a heat treatment device for stainless steel pipe fittings; it comprises a frame and multiple groups of pipe support assemblies, which are arranged relatively to each other, and the pipe support assemblies include two bearing rods fixedly connected to the inner inner wall of the frame; adjustment plates are provided on both inner side walls of the frame, and multiple spaced limiting sleeves are fixedly connected to the adjustment plates, and the limiting sleeves are slidably connected to the support sleeves, and the support sleeves are slidably connected to the control shafts, and multiple support rods are provided on one side of the support sleeves, and a tensioning rod is connected between the support sleeves and the control shaft; it effectively solves the problem that pipe fittings are very likely to cover or block each other during the heat treatment process, resulting in incomplete heat treatment of some pipe fittings; the present invention is easy to use, can quickly fix stainless steel pipe connectors, separate the stainless steel pipe connectors from each other, and improve the uniformity and integrity of the heat treatment.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe processing, and in particular to heat treatment equipment for stainless steel pipe fittings. Background Art

[0002] In the field of stainless steel pipe processing and manufacturing, the heat treatment process of stainless steel pipe connectors is crucial to improving their mechanical properties and service life. At present, for relatively short stainless steel pipe connectors, the commonly used heat treatment method is to place multiple connectors in the same material basket, and then immerse the material basket together with the stainless steel pipe connectors in a heat treatment tank for heat treatment operations. However, this traditional treatment method has significant defects. During the heat treatment process, when the stainless steel pipe connectors are placed in the material basket, it is very easy for the pipes to cover or block each other, which will seriously hinder the full contact between the heat treatment medium and the surface of the pipe, and then cause some pipes to have incomplete heat treatment problems, which cannot meet the quality requirements of the product and affect the subsequent performance and safety.

[0003] Furthermore, existing material racks have a single structure, designed only for specific types of pipe fittings. They struggle to accommodate a wide variety of stainless steel pipe connectors, such as two-way connectors and tees, with varying specifications and shapes. This not only limits the versatility of heat treatment equipment but also increases the cost and time of equipment replacement and commissioning during production, reducing production efficiency. Therefore, it is necessary to optimize the design of the existing material racks to separate each stainless steel pipe connector from the others, ensuring uniformity and integrity of the heat treatment. This also improves the rack's adaptability to different types of stainless steel pipe connectors to meet diverse production needs.

[0004] Therefore, the present invention provides a heat treatment device for stainless steel pipes to solve the above problems. Summary of the Invention

[0005] In response to the above situation, in order to overcome the defects of the prior art, the present invention provides a heat treatment equipment for stainless steel pipe fittings, which effectively solves the problem that when the stainless steel pipe connectors are placed in the material basket during the heat treatment process, the pipe fittings are very likely to cover or block each other, resulting in incomplete heat treatment of some pipe fittings, unable to meet the quality requirements of the product, and affecting the subsequent performance and safety.

[0006] The present invention solves the technical problem as follows: A heat treatment device for stainless steel pipe fittings, comprising a frame, wherein both side walls of the frame are fixedly connected to a plurality of pipe support assemblies, the pipe support assemblies arranged on the two side walls of the frame are arranged opposite to each other, the pipe support assemblies are used to support stainless steel pipe connectors, and the pipe support assemblies include two bearing rods fixedly connected to the inner side walls of the frame;

[0007] Adjustment plates are provided on both inner side walls of the frame body, a plurality of spaced limiting sleeves are fixedly connected to the adjustment plates, a support sleeve is slidably connected inside the limiting sleeve, a control shaft is slidably connected inside the support sleeve, a plurality of support rods with one end rotatably connected to the support sleeve are provided on one side of the support sleeve close to the inside of the frame, a tensioning rod is connected between the support rod and the control shaft, and the position of the limiting sleeve is higher than the center position of the stainless steel pipe connector;

[0008] A support frame is slidably connected to the outer side of the frame body, and a control structure for controlling the support rods to be pushed in directions away from each other is provided on the support frame.

[0009] Preferably, the control structure includes a plurality of control sliders slidably connected to the two outer side walls of the support frame, a connecting rod is provided between the control sliders and the support shaft sleeve, and a plurality of support springs located at the lower ends of the control sliders are fixedly connected to the support frame, one end of the support spring is fixedly connected to the support frame, and the other end of the support spring is arranged to be inclined upward;

[0010] The control shaft is fixedly connected to one end away from the support rod with a control ball, and the support frame is fixedly connected to a push control block that cooperates with the control ball. The push control block is set to a right-angled trapezoid, and a U-shaped groove that cooperates with the control ball is opened in the middle position of the push control block.

[0011] Preferably, the support frame is provided with a locking structure for locking the position of the support frame, the locking structure comprising locking plates rotatably connected to both ends of the support frame, and a plurality of longitudinally spaced adjustment locking blocks are fixedly connected to both ends of the frame;

[0012] One end of the locking plate close to the adjusting locking block is fixedly connected with a locking block that matches the adjusting locking block.

[0013] Preferably, the cross section of the adjusting locking block is set to be triangular, and the upper end surface of the adjusting locking block is set to be inclined upward;

[0014] The cross section of the locking block is set to be triangular, and the lower end surface of the locking block is set to be inclined downward.

[0015] Preferably, both side walls of the adjustment plate are rotatably connected with threaded rods, the adjustment plate and the threaded rods are threadedly connected, and a hexagonal rotation groove is provided at the upper end of the threaded rod.

[0016] Preferably, guide plates are fixedly connected to both sides of the adjustment plate, pointers are fixedly connected to the guide plates, and scales are provided at the positions of the pointers on both sides of the frame.

[0017] Preferably, a rolling sleeve is mounted on the bearing rod.

[0018] Preferably, an arc-shaped limiting clamping plate is fixedly connected between the two bearing rods on the same group of the pipe support assemblies.

[0019] Preferably, one end of the support rod away from the support sleeve is fixedly connected to a fan-shaped pressing block, and a plurality of pressing grooves are formed on the pressing block.

[0020] Preferably, a plurality of sliding grooves are provided on both side walls of the frame, and a push slider is connected to the sliding groove for sliding up and down;

[0021] A plurality of circular sliding support plates are fixedly connected to both side walls of the frame, the sliding support plates are arranged below two bearing rods on the same group of the pipe support assembly, a push plate is slidably connected to the sliding support plate, and a vertically arranged positioning plate is fixedly connected to the push plate;

[0022] A positioning connecting rod is connected between the pushing plate and the pushing slider;

[0023] The support frame is fixedly connected with a plurality of positioning springs located inside the sliding groove. The lower ends of the positioning springs are inclined toward the interior of the frame. The positioning springs are used to pull the push slider to slide inside the sliding groove.

[0024] The beneficial effects of the present invention are:

[0025] The present invention realizes placing the stainless steel pipe connector that needs heat treatment on the pipe support assembly by adding a frame, a load-bearing rod, an adjusting plate, a limiting shaft sleeve, a supporting shaft sleeve, a control shaft, a supporting rod and a tensioning rod, and then inserting the supporting shaft sleeve and the control shaft into the stainless steel pipe connector so that the position of the limiting shaft sleeve is higher than the center position of the stainless steel pipe connector, and then fixing the supporting shaft sleeve to pull the control shaft, and the tensioning rod pushes the supporting rod to open, so that the supporting rod supports the inner wall of the stainless steel pipe connector, and the stainless steel pipe connector is lifted upward and fixed in the current position, and the stainless steel pipe connector and the pipe support assembly are disengaged, thereby reducing the contact area and improving the heat treatment effect; it solves the problem that when the stainless steel pipe connector is placed in the material basket during the heat treatment process, the pipes are easily covered or blocked by each other, resulting in incomplete heat treatment of some pipes, which cannot meet the quality requirements of the product and affects the subsequent performance and safety;

[0026] By adding a threaded rod, a rotating groove, a guide plate, a pointer and a ruler, the height of the adjustment plate can be adjusted according to the specifications of the stainless steel pipe connector so that the position of the limit sleeve is higher than the center position of the stainless steel pipe connector;

[0027] By adding a limit card, the stainless steel pipe connector can be restricted;

[0028] By adding sliding grooves, pushing sliders, sliding support plates, pushing plates, positioning plates, positioning connecting rods and positioning springs, the stainless steel pipe connector is pushed so that the stainless steel pipe connector is located in the center of the frame, making it easy to fix the stainless steel pipe connector.

[0029] The present invention is easy to use, can quickly fix the stainless steel pipe connectors, separate the stainless steel pipe connectors from each other, reduce contact between the stainless steel pipe connectors, and improve the uniformity and integrity of heat treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 It is a schematic diagram of the overall assembly of the present invention;

[0032] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0033] Figure 3 This is a cross-sectional schematic diagram of the present invention in use;

[0034] Figure 4 It is a schematic cross-sectional view of the initial state of the present invention;

[0035] Figure 5 This is a schematic diagram of the support rod of the present invention in use;

[0036] Figure 6 is a schematic cross-sectional view of the locking plate of the present invention;

[0037] Figure 7 This invention Figure 6 A partial enlarged schematic diagram in the middle;

[0038] Figure 8 This is a schematic diagram of the installation position of the supporting spring piece of the present invention;

[0039] Figure 9 This invention Figure 8 A partial enlarged schematic diagram of point B in the middle;

[0040] Figure 10 This invention Figure 8 A partial enlarged schematic diagram of point C in the middle;

[0041] Figure 11 This is a schematic diagram of the installation position of the push control block of the present invention;

[0042] Figure 12 This is a schematic cross-sectional view of the locking plate of the present invention in use;

[0043] Figure 13 This invention Figure 12 A partial enlarged schematic diagram of point D in the middle;

[0044] Figure 14 This is a schematic diagram of the installation position of the positioning spring of the present invention;

[0045] Figure 15 It is a schematic cross-sectional view of the sliding groove of the present invention.

[0046] In the figure, 1. frame; 2. load-bearing rod; 3. adjustment plate; 4. limiting bushing; 5. support bushing; 6. control shaft; 7. support rod; 8. tensioning rod; 9. support frame; 10. control slider; 11. support spring; 12. control sphere; 13. push control block; 14. U-shaped groove; 15. locking plate; 16. adjustment locking block; 17. locking block; 18. threaded rod; 19. rotating groove; 20. guide plate; 21. pointer; 22. ruler; 23. rolling bushing; 24. limiting card plate; 25. pressing block; 26. pressing groove; 27. sliding groove; 28. pushing slider; 29. ​​sliding support plate; 30. pushing plate; 31. positioning plate; 32. positioning connecting rod; 33. positioning spring. DETAILED DESCRIPTION

[0047] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0048] The following describes the embodiments of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0049] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present invention, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement an apparatus and / or practice a method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this apparatus and / or practice this method.

[0050] It should also be noted that the illustrations provided in the following embodiments are merely schematic illustrations of the basic concept of the present invention. The illustrations only show components related to the present invention and are not drawn according to the number, shape, and size of components in actual implementation. In actual implementation, the type, quantity, and proportion of each component may be changed arbitrarily, and the component layout may also be more complex.

[0051] Additionally, in the following description, specific details are provided to provide a thorough understanding of the examples. However, one skilled in the art will appreciate that the aspects described can be practiced without these specific details.

[0052] Example 1, refer to the attached Figure 1-15 A heat treatment device for stainless steel pipes, comprising a frame 1, with multiple sets of pipe support assemblies fixedly connected to both side walls of the frame 1. The pipe support assemblies arranged on the two inner side walls of the frame 1 are arranged opposite to each other, and the pipe support assemblies are used to support stainless steel pipe connectors. The pipe support assemblies include two bearing rods 2 fixedly connected to the inner side walls of the frame 1;

[0053] When in use, the two ends of the stainless steel pipe connector are placed on the bearing rods 2 on the two side walls of the frame 1, so that the middle protruding end of the three-way stainless steel pipe connector swings downward and is located between the two pipe support assemblies arranged oppositely on the two side walls of the frame 1. For specific placement methods, please refer to the attached manual. Figure 1 .

[0054] Adjustment plates 3 are provided on both inner side walls of the frame 1, and a plurality of spaced limiting sleeves 4 are fixedly connected to the adjustment plates 3. A support sleeve 5 is slidably connected inside the limiting sleeve 4, and a control shaft 6 is slidably connected inside the support sleeve 5. A plurality of support rods 7, one end of which is rotatably connected to the support sleeve 5, are provided on the side of the support sleeve 5 close to the interior of the frame 1. A tensioning rod 8 is connected between the support rod 7 and the control shaft 6. The position of the limiting sleeve 4 is higher than the center position of the stainless steel pipe connector;

[0055] When in use, the two ends of the stainless steel pipe connector are placed on the bearing rods 2 on the two side walls of the frame 1, and the support sleeve 5 and the control shaft 6 are pushed toward the two ends of the stainless steel pipe connector until the support sleeve 5 and the control shaft 6 are inserted into the interior of the stainless steel pipe connector. Figure 4 When the support sleeve 5 is inserted into the fixed position, the control shaft 6 is pulled in the reverse direction to make the control shaft 6 slide inside the support sleeve 5, and the control shaft 6 and the support sleeve 5 move relative to each other. At this time, the support rod 7 is stretched away from each other by the tensioning rod 8 until the movable end of the support rod 7 touches the inner wall of the stainless steel pipe connector, thereby fixing the stainless steel pipe connector in the current position, and setting the position of the limit sleeve 4 to be higher than the center position of the stainless steel pipe connector. In this way, when the support rod 7 is opened, the stainless steel pipe connector is lifted up to a certain height, so that the stainless steel pipe connector and the bearing rod 2 are out of contact.

[0056] A support frame 9 is slidably connected to the outer side of the frame body 1 , and a control structure for controlling the support rods 7 to push away from each other is provided on the support frame 9 .

[0057] The control structure includes a plurality of control sliders 10 connected to the two outer side walls of the support frame 9 in an up-and-down sliding manner. A connecting rod is provided between the control sliders 10 and the support sleeve 5. Figure 5 The connecting rod is set at the top of the control slider 10 and the end of the support sleeve 5 away from the control slider 10. In use, when the control slider 10 moves upward, the supporting sleeve 5 is pushed to move in the direction away from the control slider 10 through the connecting rod. A plurality of supporting springs 11 located at the lower end of the control slider 10 are fixedly connected to the support frame 9. One end of the supporting spring 11 is fixedly connected to the support frame 9, and the other end of the supporting spring 11 is tilted upward. In the initial state, the control slider 10 is pushed upward under the action of the supporting spring 11.

[0058] The control shaft 6 is fixedly connected to the end away from the support rod 7 with a control ball 12, and the support frame 9 is fixedly connected to a push control block 13 that cooperates with the control ball 12. The push control block 13 is set to a right-angled trapezoid, and a U-shaped groove 14 that cooperates with the control ball 12 is opened in the middle position of the push control block 13.

[0059] This heat treatment equipment is used for the quenching heat treatment process of stainless steel pipe connectors. In specific operation, the frame 1 with the stainless steel pipe connectors fixed thereon is immersed in the heat treatment tank as a whole, so that the pipes complete the heating and cooling process together with the equipment.

[0060] When placing the pipe fittings, the two ends are placed on the bearing rods 2 on both sides of the frame 1, and the middle end of the three-way pipe fitting is suspended downward between the two sets of pipe fitting support components. For specific placement, refer to the instructions attached. Figure 1 .

[0061] When in use, the two ends of the stainless steel pipe connector are respectively placed on the load-bearing rods 2 on the two side walls of the frame 1, and then the support frame 9 is manually pulled upward. Both ends of the support frame 9 are fixedly connected with a gripping part that is easy to operate, so as to facilitate pushing the support frame 9 to slide upward. The support frame 9 simultaneously pushes the control slider 10 to move upward. When the control slider 10 moves upward, the supporting shaft sleeve 5 is pushed by the connecting rod to move toward the direction close to the inside of the stainless steel pipe connector until the supporting shaft sleeve 5 slides to the limit position. After the end of the supporting shaft sleeve 5 away from the support rod 7 contacts the limit shaft sleeve 4, the supporting shaft sleeve 5 stops moving toward the direction close to the inside of the stainless steel pipe connector. Under the action of the connecting rod, the control slider 10 cannot continue to move upward. Move, at this time continue to pull the support frame 9 upward, the control slider 10 presses the support spring piece 11 downward, the inclined edge of the control block 13 contacts the control ball 12, and when the control block 13 continues to move upward, the inclined edge of the control block 13 pushes the control ball 12 to move in the direction away from the stainless steel pipe connector, until the tensioning rod 8 opens the support rod 7 in the direction away from each other, and the movable end of the support rod 7 fits the inner wall of the stainless steel pipe connector. The support rod 7 expands radially under the action of the tensioning rod 8, and the clamping block 25 at its end fits the inner wall of the pipe fitting. Because the height of the fulcrum supporting sleeve 5 of the support rod 7 is higher than the center of the pipe fitting, the supporting force generates a vertical component of force, which makes the pipe fitting separate from the load-bearing rod 2 and realizes suspended fixation. Refer to the attached manual Figure 3 , thereby fixing the stainless steel pipe connection in its current position.

[0062] The support frame 9 is provided with a locking structure for locking the position of the support frame 9. The locking structure includes a locking plate 15 rotatably connected to both ends of the support frame 9. Both ends of the frame body 1 are fixedly connected to a plurality of longitudinally spaced adjustment locking blocks 16.

[0063] One end of the locking plate 15 close to the adjusting locking block 16 is fixedly connected to a locking block 17 that matches the adjusting locking block 16, and the other end of the locking plate 15 is installed with a counterweight block;

[0064] The cross section of the adjusting locking block 16 is set to be triangular, and the upper end surface of the adjusting locking block 16 is set to be inclined upward;

[0065] The cross section of the locking block 17 is set to be triangular, and the lower end surface of the locking block 17 is set to be inclined downward.

[0066] In the initial state, the locking plate 15 is kept in a vertical state under the action of the counterweight. When the support frame 9 is pulled upward, the inclined surface of the locking block 17 contacts the inclined surface of the adjusting locking block 16. Figure 13, then adjust the inclined edge of the locking block 16 to push the inclined edge of the locking block 17 to move away from the center position of the support frame 9, and push the locking plate 15 to swing a certain angle through the locking block 17. When the inclined edge of the adjusting locking block 16 pushes the inclined edge of the locking block 17 out of contact, the locking plate 15 is in a vertical state under the action of gravity. At this time, the lower end surface of the locking block 17 is in contact with the upper end surface of the adjusting locking block 16. At this time, the locking plate 15 is stuck in the current position. Refer to the attached manual Figure 7 , the support frame 9 is locked in the current position through the locking plate 15.

[0067] When the support frame 9 is pulled upward until the movable end of the support rod 7 touches the inner wall of the stainless steel pipe connector, the support frame 9 cannot move upward and is locked in the current position by the locking plate 15;

[0068] After use, the locking plate 15 is manually moved and rotated to move the locking block 17 away from the adjusting locking block 16. At this time, the locking plate 15 can move up and down freely.

[0069] In the second embodiment, threaded rods 18 are rotatably connected to both side walls of the adjustment plate 3. The adjustment plate 3 and the threaded rods 18 are threadedly connected. A hexagonal rotation groove 19 is provided at the upper end of the threaded rod 18. When in use, the rotation of the threaded rod 18 is controlled by rotating the rotation groove 19, thereby adjusting the height of the adjustment plate 3.

[0070] Guide plates 20 are fixedly connected on both sides of the adjustment plate 3. A guide groove that is slidably connected to the guide plate 20 is opened on the frame 1. The guide plate 20 is slidably connected inside the guide groove, thereby limiting the guide plate 20 to stabilize the adjustment plate 3. A pointer 21 is fixedly connected to the guide plate 20, and a scale 22 is provided on both sides of the frame 1 at the pointer 21.

[0071] When in use, the height of the adjustment plate 3 is adjusted according to the specifications of the stainless steel pipe connector, so that the position of the limiting sleeve 4 is higher than the center position of the stainless steel pipe connector. The height of the adjustment plate 3 is accurately controlled by setting the pointer 21 and the ruler 22.

[0072] In the third embodiment, a rolling sleeve 23 is mounted on the bearing rod 2 to guide the stainless steel pipe connector, so that the middle end of the three-way stainless steel pipe connector swings downward under the action of gravity, and the rolling sleeve 23 reduces friction.

[0073] In the fourth embodiment, an arc-shaped limiting plate 24 is fixedly connected between the two bearing rods 2 on the same set of pipe support components. When in use, the stainless steel pipe connector is placed on the limiting plate 24 to prevent the stainless steel pipe connectors from contacting each other.

[0074] In the fifth embodiment, the end of the support rod 7 away from the support sleeve 5 is fixedly connected with a fan-shaped pressing block 25, and a plurality of pressing grooves 26 are provided on the pressing block 25, so that the support rod 7 can be fixed to the inner wall of the stainless steel pipe connector.

[0075] In the sixth embodiment, a plurality of sliding grooves 27 are provided on both side walls of the frame 1, and a push slider 28 is connected to the sliding groove 27 so as to slide up and down;

[0076] A plurality of circular sliding support plates 29 are fixedly connected to the two side walls of the frame 1. The sliding support plates 29 on the two side walls of the frame 1 are arranged opposite to each other. The sliding support plates 29 are arranged below the two bearing rods 2 on the same set of pipe support components. A push plate 30 is slidably connected to the sliding support plate 29, and a vertical positioning plate 31 is fixedly connected to the push plate 30.

[0077] A positioning link 32 is connected between the push plate 30 and the push slider 28. A counterweight is fixedly mounted on the push slider 28 so that the initial position is pulled downward to the limit position under the action of gravity.

[0078] The support frame 9 is fixedly connected with a plurality of positioning springs 33 located inside the sliding groove 27 . The lower ends of the positioning springs 33 are tilted toward the inside of the frame 1 . The positioning springs 33 are used to pull and push the slider 28 to slide inside the sliding groove 27 .

[0079] When the support frame 9 is in use, the support frame 9 is pulled upward, and the positioning spring piece 33 contacts the pushing slide block 28, and the positioning spring piece 33 pushes the pushing slide block 28 to move upward. When the pushing slide block 28 moves upward, the positioning link 32 pushes the pushing plate 30 to move close to the center position of the support frame 9, and at the same time drives the positioning plate 31 to push the stainless steel pipe connector to move close to the center position of the support frame 9 until the stainless steel pipe connector slides to the center position. When the relatively arranged positioning plate 31 pushes the stainless steel pipe connector to the position located at the center of the support frame 9, the positioning plate 31 cannot move further, and the support frame 9 is continued to be pulled upward, pushing the slide block 28 in the direction away from the frame body 1 to press the positioning spring piece 33 until the positioning spring piece 33 and the pushing slide block 28 are disengaged. Then, under the action of the gravity of the pushing slide block 28, the pushing slide block 28 slides downward to the limit position. At this time, the positioning link 32 drives the pushing plate 30 to move away from the center position of the frame 1 to the limit position;

[0080] After use, the support frame 9 is pushed downwards so that the positioning spring 33 is relocated below the push slider 28 for the next use.

[0081] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A heat treatment device for stainless steel pipes, comprising a frame (1), characterized in that: Multiple sets of pipe support assemblies are fixedly connected to both inner side walls of the frame (1), and the pipe support assemblies arranged on the two inner side walls of the frame (1) are arranged opposite to each other. The pipe support assemblies are used to support stainless steel pipe connectors, and the pipe support assemblies include two bearing rods (2) fixedly connected to the inner side walls of the frame (1); The frame (1) is provided with an adjustment plate (3) on both inner side walls, and a plurality of spaced limiting sleeves (4) are fixedly connected to the adjustment plate (3), a support sleeve (5) is slidably connected inside the limiting sleeve (4), and a control shaft (6) is slidably connected inside the support sleeve (5), and a plurality of support rods (7) with one end rotatably connected to the support sleeve (5) are provided on one side of the support sleeve (5) close to the inside of the frame (1), and a tensioning rod (8) is connected between the support rod (7) and the control shaft (6), and the position of the limiting sleeve (4) is higher than the center position of the stainless steel pipe connector; The outer side of the frame (1) is slidably connected to a support frame (9), and the support frame (9) is provided with a control structure for controlling the support rods (7) to push in a direction away from each other; The control structure comprises a plurality of control slide blocks (10) connected to the two outer side walls of the support frame (9) in an upward and downward sliding manner, a connecting rod is provided between the control slide blocks (10) and the support shaft sleeve (5), a plurality of support springs (11) located at the lower ends of the control slide blocks (10) are fixedly connected to the support frame (9), one end of the support springs (11) is fixedly connected to the support frame (9), and the other end of the support springs (11) is arranged to be tilted upward; The control shaft (6) is fixedly connected to one end away from the support rod (7) with a control ball (12), and the support frame (9) is fixedly connected to a push control block (13) that cooperates with the control ball (12). The push control block (13) is arranged in a right-angled trapezoid, and a U-shaped groove (14) that cooperates with the control ball (12) is provided in the middle of the push control block (13); The support frame (9) is provided with a locking structure for locking the position of the support frame (9), the locking structure comprising locking plates (15) rotatably connected to both ends of the support frame (9), and a plurality of longitudinally spaced adjustment locking blocks (16) are fixedly connected to both ends of the frame body (1); One end of the locking plate (15) close to the adjusting locking block (16) is fixedly connected to a locking block (17) that matches the adjusting locking block (16).

2. The heat treatment equipment for stainless steel pipes according to claim 1, characterized in that: The cross section of the adjusting locking block (16) is set to be triangular, and the upper end surface of the adjusting locking block (16) is set to be inclined upward; The cross section of the locking block (17) is arranged to be triangular, and the lower end surface of the locking block (17) is arranged to be inclined downward.

3. The heat treatment equipment for stainless steel pipes according to claim 1, characterized in that: Threaded rods (18) are rotatably connected to both side walls of the adjustment plate (3), the adjustment plate (3) and the threaded rods (18) are threadedly connected, and a hexagonal rotation groove (19) is formed at the upper end of the threaded rod (18).

4. The heat treatment equipment for stainless steel pipes according to claim 3, characterized in that: Guide plates (20) are fixedly connected to both sides of the adjustment plate (3), a pointer (21) is fixedly connected to the guide plate (20), and scales (22) are provided on both sides of the frame (1) at the pointer (21).

5. The heat treatment equipment for stainless steel pipes according to claim 1, characterized in that: A rolling sleeve (23) is sleeved on the bearing rod (2).

6. The heat treatment equipment for stainless steel pipes according to claim 5, characterized in that: An arc-shaped limiting clamping plate (24) is fixedly connected between the two bearing rods (2) on the same group of pipe support assemblies.

7. The heat treatment equipment for stainless steel pipes according to claim 1, characterized in that: One end of the support rod (7) away from the support sleeve (5) is fixedly connected to a fan-shaped pressing block (25), and a plurality of pressing grooves (26) are formed on the pressing block (25).

8. The heat treatment equipment for stainless steel pipes according to claim 1, characterized in that: A plurality of sliding grooves (27) are provided on both side walls of the frame (1), and a push slider (28) is connected to the sliding groove (27) so as to slide up and down. A plurality of circular sliding support plates (29) are fixedly connected to both side walls of the frame (1), the sliding support plates (29) are arranged below two bearing rods (2) on the same group of the pipe support assembly, a push plate (30) is slidably connected to the sliding support plate (29), and a vertically arranged positioning plate (31) is fixedly connected to the push plate (30); A positioning link (32) is connected between the push plate (30) and the push slider (28); A plurality of positioning springs (33) located inside the sliding groove (27) are fixedly connected to the support frame (9), and the lower ends of the positioning springs (33) are inclined toward the interior of the frame (1). The positioning springs (33) are used to pull the push slider (28) to slide inside the sliding groove (27).

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