A thermostatic shaking metal bath

Abstract

This utility model discloses a constant-temperature oscillating metal bath, comprising: a constant-temperature chamber containing a metal bath, the metal bath having multiple container storage slots; and an oscillation mechanism including a support unit, a drive unit, and a swing unit, the swing unit being rotatably connected to the support unit, the constant-temperature chamber being detachably mounted on the swing unit, and the output end of the drive unit being driven by the swing unit to cause the swing unit to reciprocate relative to the support unit. In this utility model, the constant-temperature chamber and the swing unit of the oscillation mechanism are detachably connected, allowing the user to remove the constant-temperature chamber separately for thorough cleaning or sterilization, avoiding liquid contact with mechanical parts and reducing the risk of malfunction. The oscillation mechanism adopts a separate structure of support unit, drive unit, and swing unit, wherein the support unit provides a stable base, and the drive unit drives the swing unit to reciprocate, with adjustable swing amplitude and frequency.

Description

Technical Field

[0001] This utility model relates to the field of metal bath technology, and in particular to a constant temperature oscillating metal bath. Background Technology

[0002] Isothermal shaking metal baths are widely used experimental equipment in fields such as biomedicine, chemical analysis, and materials science. Their core function is to provide a uniform and stable reaction environment for samples by precisely controlling the temperature field and oscillation frequency of the metal bath. Traditional isothermal shaking metal baths typically employ an integrated structural design, meaning the oscillation mechanism is fixedly connected to the metal bath body, making separation impossible or complex. While this design met basic functional requirements in early experimental equipment, long-term use has gradually revealed the following technical shortcomings:

[0003] 1. Difficult to clean and maintain: Experimental samples or reagents are easily left on the inner wall of the metal bath and the container tank. However, because the shaking mechanism is closely integrated with the metal bath, mechanical parts must be avoided during cleaning, resulting in many dead corners and low efficiency. In some cases, liquid may even seep into the mechanical structure and cause malfunctions.

[0004] 2. High maintenance costs: When the oscillation mechanism or temperature control module malfunctions, the entire equipment needs to be disassembled and returned to the factory for repair. The repair cycle is long and the cost is high. In some cases, the entire machine may even need to be replaced, which significantly increases the user's operating costs. Utility Model Content

[0005] The purpose of this utility model is to disclose a modularly designed constant temperature oscillating metal bath, the core of which is to achieve independent separation of the oscillation mechanism and the constant temperature chamber through a detachable connection structure.

[0006] To achieve the above objectives, this utility model discloses a constant-temperature oscillating metal bath, comprising: a constant-temperature chamber containing a metal bath, the metal bath having multiple container storage slots; and an oscillation mechanism comprising a support unit, a drive unit, and a swing unit, the swing unit being rotatably connected to the support unit, the constant-temperature chamber being detachably mounted on the swing unit, and the output end of the drive unit being drivenly connected to the swing unit to cause the swing unit to perform a reciprocating oscillation relative to the support unit.

[0007] By adopting the above solution, the constant temperature chamber and the swing unit of the oscillation mechanism can be detachably connected. Users can remove the constant temperature chamber separately for thorough cleaning or sterilization, avoiding liquid contact with mechanical parts and reducing the risk of failure. The oscillation mechanism adopts a separate structure of support unit, drive unit and swing unit. The support unit provides a stable base, and the drive unit drives the swing unit to reciprocate. The swing amplitude and frequency are adjustable.

[0008] Furthermore, the swing unit includes: an assembly frame having a hinge portion that is hinged to the output end of the drive unit; and a plurality of parallel swing rods, each swing rod including a first pivot portion and a second pivot portion, the first pivot portion being rotatably connected to the support unit and the second pivot portion being rotatably connected to the assembly frame, so that the assembly frame always remains parallel to the horizontal plane.

[0009] By adopting the above-mentioned scheme, the first and second rotating shafts form a double-axis hinge structure, which allows the assembly frame to automatically adjust to a horizontal state during reciprocating oscillation, avoiding liquid splashing or uneven sample distribution caused by tilting. This is particularly suitable for experiments requiring high liquid surface stability, such as cell culture and enzyme reactions. The parallel rod structure converts the rotational motion of the drive unit into smooth reciprocating oscillation, eliminating the vertical component force that may be generated by traditional single-axis oscillation, significantly reducing vibration and noise. The multi-swing rod design distributes the force, increasing the load-bearing capacity by more than 50% compared to a single-rod structure. Furthermore, bearings or low-friction bushings are used at the rotating connections to reduce mechanical wear and extend the service life of the equipment.

[0010] Furthermore, the assembly frame includes: a first linkage member, which is arranged along the length of the constant temperature chamber and is rotatably connected to a plurality of the rocker arms; a second linkage member, which is parallel to and spaced apart from the first linkage member and is rotatably connected to the plurality of the rocker arms; and a synchronizing member, one end of which is fixed to the first linkage member and the other end of which is fixed to the second linkage member, and the hinge portion is located between the two ends of the synchronizing member.

[0011] By adopting the above scheme, the first and second linkage components are set in parallel and spaced apart, and rigidly connected by the synchronization component to form a closed-loop frame structure. The bending stiffness is increased by more than 3 times, effectively resisting the torsional deformation caused by inertial force during the swing. The weight of the constant temperature chamber is evenly distributed to more than 4 swing rods through the double linkage components, and the load-bearing capacity of a single swing rod is increased by 2.5 times. It can stably support a constant temperature chamber with a load of ≥2kg, and its applicable range covers micro to medium-sized experiments.

[0012] Furthermore, a third shaft hole is provided at the end of the rocker arm away from the second rotating shaft, and a fixing member for fixing to the constant temperature chamber is inserted in the third shaft hole.

[0013] By adopting the above solution, the fixing component can stably abut the constant temperature box, thereby improving the stability of the constant temperature box itself during swinging.

[0014] Furthermore, the fixing component includes: a screw rod, one end of which is provided with a suction cup; a first nut and a second nut sleeved on the screw rod; the fixing component is rotatably connected to the third shaft hole; the first nut and the second nut are respectively located at both ends of the third shaft hole, and are used to adjust the distance between the suction cup and the rocker arm.

[0015] By adopting the above-mentioned scheme, the double-nut structure achieves stepless adjustment of the distance between the suction cup and the rocker arm within ±5mm, adapting to various width ranges of constant temperature chambers. The vacuum surface of the suction cup is completely in contact with the surface of the constant temperature chamber, making the connection convenient and stable. This flexible connection through the suction cup transforms rigid impact loads into elastic deformation, significantly extending the fatigue life of the connecting parts. The first nut and the second nut respectively act as a locking nut and an adjusting nut, forming a mechanical anti-loosening combination, suitable for high-frequency oscillation conditions.

[0016] Furthermore, the support unit includes: a horizontal rod, which is arranged along the length of the constant temperature chamber, and has a plurality of equally spaced pivot holes, the swing rod on the swing unit being rotatably connected to the pivot holes; and a vertical support rod, which is fixed to the horizontal rod and is used to support the horizontal rod.

[0017] By adopting the above scheme, the equally spaced pivot holes provide multiple mounting positions, which can make the rocker arm mounting position cover 70%-90% of the length direction of the constant temperature chamber, and adapt to the center of gravity position of constant temperature chambers of different specifications.

[0018] Furthermore, the rotating shaft hole is arranged along the length direction of the constant temperature chamber, and multiple vertical support rods are provided, with the multiple vertical support rods arranged along the length direction of the constant temperature chamber.

[0019] By adopting the above scheme, multiple vertical support rods and horizontal rods form a spatial truss system, creating a statically indeterminate support structure, which greatly improves the bending stiffness.

[0020] Furthermore, the distance between the first linkage and the second linkage is not less than the width of the constant temperature chamber.

[0021] By adopting the above scheme, the open, wide-space design allows the thermostatic chamber to be pushed in or pulled out horizontally without tilting or lifting, shortening the loading and unloading time and adapting to thermal expansion compensation gaps.

[0022] Furthermore, the drive unit includes a fixed part and a movable part, the movable part being capable of linear reciprocating motion relative to the fixed part, and the end of the movable part being hinged to the hinge part of the swing unit.

[0023] By adopting the above scheme, the linear reciprocating motion and the swinging motion are decoupled through the hinge, resulting in higher precision control of the swinging angle.

[0024] Furthermore, the drive unit is a lead screw motor, a slider motor, or a push rod motor.

[0025] By adopting the above scheme, the lead screw motor achieves micron-level positioning accuracy through helical transmission, and the swing angle control accuracy is higher; the slider motor is particularly suitable for rapid temperature cycling or programmed oscillation mode; the push rod motor adopts a self-lubricating bearing design and can adapt to a wide temperature range environment from -20℃ to 60℃.

[0026] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0027] 1. The constant temperature chamber and the vibration mechanism are completely separated. Users can remove the constant temperature chamber separately for high-pressure sterilization or chemical cleaning. The inner wall of the metal bath and the container tank can reach the IP67 protection level, completely eliminating the cleaning dead corners of traditional equipment and improving cleaning efficiency by 80%.

[0028] 2. Supports independent upgrades of the constant temperature chamber and the shaking mechanism, allowing users to adapt to new containers or experimental needs without replacing the entire machine, thus extending the equipment's lifespan;

[0029] 3. When the drive unit or temperature control module fails, there is no need to disassemble the entire device; only the corresponding module needs to be replaced, which greatly reduces maintenance time and cost. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0032] Figure 2 This is a schematic diagram of a partial explosion of the oscillation mechanism according to an embodiment of the present invention;

[0033] Figure 3 This is a side view of the oscillation mechanism according to an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the bottom structure of the oscillation mechanism according to an embodiment of the present invention;

[0035] Figure 5 This is a schematic diagram of the connection structure of the drive unit in an embodiment of the present utility model;

[0036] Figure 6 This is a schematic diagram of the fastener structure according to an embodiment of the present utility model.

[0037] Explanation of key figure labels:

[0038] 1. Constant temperature chamber; 11. Metal bath; 111. Container storage tank; 2. Vibration mechanism; 3. Support unit; 31. Horizontal bar; 311. Rotating shaft hole; 32. Vertical support bar; 4. Drive unit; 41. Fixed part; 42. Moving part; 5. Swing unit; 51. Assembly frame; 511. First linkage component; 512. Second linkage component; 513. Synchronizing component; 5131. Hinge part; 52. Rocker arm; 521. First rotating shaft part; 522. Second rotating shaft part; 523. Third shaft hole; 6. Fixing component; 61. Screw; 62. Suction cup; 63. First nut; 64. Second nut. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0041] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0042] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0043] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0044] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0045] See Embodiment 1 of this utility model. Figures 1 to 6 As shown, a constant-temperature oscillating metal bath is provided, comprising two main modules: a constant-temperature chamber 1 and an oscillation mechanism 2. The constant-temperature chamber 1 houses a metal bath 11 with multiple container storage slots 111. The oscillation mechanism 2 includes a support unit 3, a drive unit 4, and a swing unit 5. The swing unit 5 is rotatably connected to the support unit 3. The constant-temperature chamber 1 is detachably connected to the swing unit 5 of the oscillation mechanism 2, enabling rapid separation and assembly. The output of the drive unit 4 is driven by the swing unit 5, ensuring that the oscillation mechanism 2 can drive the constant-temperature chamber 1 to reciprocate. The constant-temperature chamber 1 independently carries the metal bath 11 and sample containers, and the two work together to form a modular experimental system. The constant-temperature chamber 1 and the swing unit 5 of the oscillation mechanism 2 are detachably connected, allowing the user to remove the constant-temperature chamber 1 separately for thorough cleaning or sterilization, preventing liquid contact with mechanical parts and reducing the risk of malfunction. The oscillation mechanism 2 adopts a split structure of support unit 3, drive unit 4 and swing unit 5. The support unit 3 provides a stable base, and the drive unit 4 drives the swing unit 5 to swing back and forth. The swing amplitude and frequency are adjustable.

[0046] In some embodiments, the constant temperature chamber 1 includes an outer shell, an internal metal bath 11, and a container storage tank 111. The metal bath 11 is made of high thermal conductivity aluminum alloy and has an embedded electric heating wire and a semiconductor cooling chip. Precise temperature control from -20°C to 150°C is achieved through a PID temperature control module. The container storage tank 111 has an array of openings to accommodate standard centrifuge tubes, PCR tubes, and other experimental containers.

[0047] In some embodiments, the support unit 3 includes a horizontal rod 31 and a vertical support rod 32. The horizontal rod 31 is a rectangular cross-section steel beam arranged along the length of the constant temperature chamber 1. The surface of the horizontal rod 31 is provided with a plurality of equally spaced pivot holes 311, in which self-lubricating bearings are embedded. The pivot holes 311 are arranged along the length of the constant temperature chamber 1. The swing rod 52 on the swing unit 5 is rotatably connected to the pivot holes 311. The equally spaced pivot holes 311 provide multiple mounting positions, allowing the mounting position of the swing rod 52 to cover the constant temperature chamber 1. The vertical support rod 32 is 70%-90% of the length, adapting to the centroid position of different specifications of the constant temperature chamber 1; the vertical support rod 32 is vertically fixed to the horizontal rod 31, and the fixing method includes, but is not limited to, welding or bolt fixing. The vertical support rod 32 is used to support the horizontal rod 31. In this embodiment 1, multiple vertical support rods 32 are provided, and multiple vertical support rods 32 are arranged along the length direction of the constant temperature chamber 1. Multiple vertical support rods 32 and horizontal rods 31 form a spatial truss system, forming a statically indeterminate support structure, which greatly improves the bending stiffness. Optionally, an anti-slip rubber pad can also be provided at the bottom of the vertical support rod 32.

[0048] In this embodiment 1, the swing unit 5 includes an assembly frame 51 and a plurality of parallel swing rods 52. Optionally, the number of swing rods 52 is even. The assembly frame 51 consists of a first linkage 511, a second linkage 512, and a frame that can accommodate a rectangular constant temperature chamber 1. The first linkage 511 and the second linkage are arranged in parallel and spaced apart, and both the first linkage 511 and the second linkage 512 are arranged along the length direction of the constant temperature chamber 1, with a spacing greater than the width of the constant temperature chamber 1 by 10mm. The synchronizing member 513 is a transverse reinforcing rod, and the middle part of the synchronizing member 513 is provided with a hinge part 5131, which is hinged to the output end of the drive unit 4. Each rocker arm 52 includes a first rotating shaft part 521, a second rotating shaft part 522 and a third shaft hole 523. The first rotating shaft part 521 is rotatably connected to the rotating shaft hole 311 of the horizontal rod 31 in the support unit 3 by a needle roller bearing. The second rotating shaft part 522 is rotatably connected to the first linkage 511 and the second linkage 512 of the assembly frame 51 through a spherical bearing, so that the assembly frame 51 always remains parallel to the horizontal plane. The third shaft hole 523 is located at the end of the rocker arm 52, that is, the top of the rocker arm 52. The first rotating shaft 521 and the second rotating shaft 522 form a double-axis hinge structure, which allows the assembly frame 51 to automatically adjust to a horizontal state during reciprocating oscillation, avoiding liquid splashing or uneven sample distribution caused by tilting. This is especially suitable for experiments such as cell culture and enzyme reactions that require high liquid surface stability. The parallel rod structure converts the rotational motion of the drive unit 4 into a smooth reciprocating oscillation, eliminating the vertical component force that may be generated by traditional single-axis oscillation, and significantly reducing vibration and noise. The multi-swing rod 52 design distributes the force, increasing the load-bearing capacity by more than 50% compared to the single-rod structure. Furthermore, bearings or low-friction bushings are used at the rotating connections to reduce mechanical wear and extend the service life of the equipment.

[0049] In various embodiments, the first linkage 511 and the second linkage 512 are located on both sides of the constant temperature chamber 1, respectively. The first linkage 511 is rotatably connected to a plurality of the swing rods 52; the second linkage 512 is rotatably connected to a plurality of the swing rods 52. The first linkage 511 and the second linkage 512 are arranged in parallel and spaced apart, and are rigidly connected by a synchronization member 513 to form a closed-loop frame structure. The bending stiffness is increased by more than 3 times, effectively resisting the torsional deformation caused by inertial force during the swinging process. The gravity of the constant temperature chamber 1 is evenly distributed to more than 4 swing rods 52 through the double linkages. The load-bearing capacity of a single swing rod 52 is increased by 2.5 times, which can stably support the constant temperature chamber 1 with a load of ≥2kg. The applicable scope covers micro to medium-sized experiments.

[0050] In other embodiments, the third shaft hole 523 can be omitted, and a plug that can be quickly connected to the bottom of the constant temperature chamber 1 can be provided on the upper part of the synchronization component 513 of the assembly frame 51. A socket for plugging into the constant temperature chamber 1 is provided on the bottom of the constant temperature chamber 1. The plug and socket are mutually snapped and fixed. The specific structure is not limited. Of course, it can also be a magnetic connection or other connection, as long as it can complete the disassembly and connection of the two.

[0051] In this embodiment 1, a fixing member 6 for fixing to the constant temperature chamber 1 is inserted into the third shaft hole 523. The fixing member 6 can stably abut the constant temperature chamber 1, improving the stability of the constant temperature chamber 1 during swinging. In some embodiments, the fixing member 6 includes a screw 61 and a first nut 63 and a second nut 64 sleeved on the screw 61. One end of the screw 61 is fixed with a silicone suction cup 62, and the other end is threaded. The fixing member 6 and the third shaft hole 523 are rotatably connected by a bearing. The first nut 63 and the second nut 64 are respectively located on both sides of the third shaft hole 523. Tightening the first nut 63 and the second nut 64 can adjust the distance between the suction cup 62 and the swing rod 52, and the suction cup 62 is adsorbed onto the side of the constant temperature chamber 1. The double nut structure allows for stepless adjustment of the distance between the suction cup 62 and the swing rod 52 by ±5mm, adapting to various width ranges of the constant temperature chamber 1. The vacuum surface of the suction cup 62 is completely in contact with the surface of the constant temperature chamber 1, making the connection convenient and the fixation stable. The suction cup 62, a flexible connection, transforms rigid impact loads into elastic deformation, significantly extending the fatigue life of the connector. The first nut 63 and the second nut 64 act as a locking nut and an adjusting nut, respectively, forming a mechanical anti-loosening combination to match high-frequency oscillation conditions.

[0052] It should be noted that the distance between the first linkage 511 and the second linkage 512 is not less than the width of the constant temperature chamber 1. This open, wide-space design allows the constant temperature chamber 1 to be pushed in or pulled out horizontally without tilting or lifting, shortening the loading and unloading time and accommodating thermal expansion compensation gaps.

[0053] In some embodiments, the drive unit 4 includes a fixed part 41 and a movable part 42. The movable part 42 can perform linear reciprocating motion relative to the fixed part 41. The end of the movable part 42 is hinged to the hinge part 5131 of the swing unit 5. The linear reciprocating motion and the swing motion are decoupled through the hinge part 5131, resulting in higher control precision for the swing angle. Optionally, the drive unit 4 is a lead screw motor, a slider motor, or a push rod motor. The lead screw motor achieves micron-level positioning accuracy through helical transmission, resulting in higher control precision for the swing angle. The slider motor is particularly suitable for rapid temperature cycling or programmed oscillation modes. The push rod motor adopts a self-lubricating bearing design and can adapt to a wide temperature range environment from -20℃ to 60℃. In this embodiment 1, the drive unit 4 is a push rod motor, the fixed part 41 is fixed on the horizontal surface, or it can be fixed on the horizontal rod 31 or the vertical support rod 32 of the support unit 3. The movable part 42 is the end of the push rod, which is connected to the hinge part 5131 of the swing unit 5. When the push rod motor works, it can push the swing unit 5 to achieve reciprocating swing of ±30°. When the drive unit 4 pushes the hinge part 5131 to make linear motion, the swing rod 52 rotates around the first rotating shaft part 521. Since the second rotating shaft part 522 is connected to the joint bearing of the assembly frame 51, multiple swing rods 52 form a parallelogram mechanism, forcing the assembly frame 51 to always be parallel to the horizontal surface. The gravity load of the constant temperature box 1 is sequentially from the suction cup 62 fixing part 6, the swing rod 52, the first rotating shaft part 521, the horizontal rod 31, and finally to the vertical support rod 32. The symmetrical layout of the swing rods 52 reduces the load-bearing capacity of a single rod, and with the cooperation of the self-lubricating bearing, the wear rate is greatly reduced.

[0054] In use, the constant temperature chamber 1 is horizontally pushed into the assembly frame 51, the suction cup 62 of the fixing part 6 is adjusted to contact the side of the chamber, and the nut is tightened to lock it. By controlling the swing frequency and angle of the drive unit 4, the moving part 42 is driven to reciprocate, which is converted into the swing of the assembly frame 51 via the hinge part 5131. When disassembly is required, the nut of the fixing part 6 is loosened, and the constant temperature chamber 1 is pulled out horizontally for direct autoclaving or soaking cleaning. The vibration mechanism 2 does not need to be disassembled, avoiding liquid seepage into the mechanical parts.

[0055] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0056] 1. The constant temperature chamber 1 and the vibration mechanism 2 are completely separated. Users can remove the constant temperature chamber 1 separately for high-pressure sterilization or chemical cleaning. The inner wall of the metal bath 11 and the container tank can reach the IP67 protection level, completely eliminating the cleaning dead corners of traditional equipment and improving cleaning efficiency by 80%.

[0057] 2. Supports independent upgrades of the constant temperature chamber 1 and the shaking mechanism 2, allowing users to adapt to new containers or experimental needs without replacing the entire machine, thus extending the equipment's lifespan;

[0058] 3. When the drive unit 4 or the temperature control module fails, there is no need to disassemble the entire device; only the corresponding module needs to be replaced, which greatly reduces maintenance time and cost.

[0059] The above provides a detailed description of a constant-temperature oscillating metal bath disclosed in the embodiments of this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the constant-temperature oscillating metal bath and its core idea. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A constant-temperature oscillating metal bath, characterized in that, include: A constant temperature chamber (1) is provided inside the constant temperature chamber (1), and the metal bath (11) has multiple container storage slots (111); The oscillation mechanism (2) includes a support unit (3), a drive unit (4), and a swing unit (5). The swing unit (5) is rotatably connected to the support unit (3). The constant temperature box (1) is detachably assembled on the swing unit (5). The output end of the drive unit (4) is driven to the swing unit (5) so that the swing unit (5) performs a reciprocating swing action relative to the support unit (3).

2. The isothermal oscillating metal bath according to claim 1, characterized in that, The swing unit (5) includes: Assembly frame (51), the assembly frame (51) is provided with a hinge part (5131), the hinge part (5131) is hinged to the output end of the drive unit (4); Multiple parallel rocker arms (52) are provided. Each rocker arm (52) includes a first pivot (521) and a second pivot (522). The first pivot (521) is rotatably connected to the support unit (3), and the second pivot (522) is rotatably connected to the assembly frame (51) so that the assembly frame (51) always remains parallel to the horizontal plane.

3. The constant temperature oscillating metal bath according to claim 2, characterized in that, The assembly rack (51) includes: The first linkage (511) is arranged along the length direction of the constant temperature box (1) and is rotatably connected to the plurality of rocker arms (52). The second linkage (512) is parallel to and spaced apart from the first linkage (511), and the second linkage (512) is rotatably connected to the plurality of rocker arms (52). Synchronizing element (513), one end of which is fixed to the first linkage element (511) and the other end of which is fixed to the second linkage element (512), and the hinge part (5131) is located between the two ends of the synchronizing element (513).

4. The isothermal oscillating metal bath according to claim 2, characterized in that, The rocker arm (52) has a third shaft hole (523) at one end away from the second rotating shaft (522), and a fastener (6) for fixing to the constant temperature chamber (1) is inserted in the third shaft hole (523).

5. A constant-temperature oscillating metal bath according to claim 4, characterized in that, The fastener (6) includes: A screw (61), one end of which is provided with a suction cup (62); The first nut (63) and the second nut (64) are fitted onto the screw (61). The fixing member (6) is rotatably connected to the third shaft hole (523). The first nut (63) and the second nut (64) are located at the two ends of the third shaft hole (523) respectively, and are used to adjust the distance between the suction cup (62) and the rocker arm (52).

6. The isothermal oscillating metal bath according to claim 1, characterized in that, The support unit (3) includes; A horizontal rod (31) is provided along the length of the constant temperature box (1). The horizontal rod (31) is provided with a plurality of equally spaced pivot holes (311). The swing rod (52) on the swing unit (5) is rotatably connected to the pivot holes (311). A vertical support rod (32) is fixed to the horizontal rod (31) and is used to support the horizontal rod (31).

7. A constant-temperature oscillating metal bath according to claim 6, characterized in that, The rotating shaft hole (311) is arranged along the length direction of the constant temperature chamber (1), and multiple vertical support rods (32) are provided, with multiple vertical support rods (32) arranged along the length direction of the constant temperature chamber (1).

8. A constant-temperature oscillating metal bath according to claim 3, characterized in that, The distance between the first linkage (511) and the second linkage (512) is not less than the width of the constant temperature chamber (1).

9. A constant-temperature oscillating metal bath according to claim 1, characterized in that, The drive unit (4) includes a fixed part (41) and a movable part (42). The movable part (42) can reciprocate linearly relative to the fixed part (41). The end of the movable part (42) is hinged to the hinge part (5131) of the swing unit (5).

10. A constant-temperature oscillating metal bath according to claim 9, characterized in that, The drive unit (4) is a lead screw motor, a slider motor, or a push rod motor.

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