Waterproof heat preservation transmission structure

Abstract

The utility model discloses a waterproof heat preservation transmission structure which comprises a driving assembly arranged on the outer side of a bin body, the driving assembly is connected with a linkage shaft, the linkage shaft penetrates through the bin body, and a sealing ring is arranged between the linkage shaft and the inner wall of the bin body; the movable pressing assembly comprises a lead screw connected with the linkage shaft, a lead screw seat is arranged on the lead screw, a push rod is arranged on the lead screw seat, a lead screw nut is arranged on the lead screw, and the lead screw nut is used for driving the push rod to move and press the linkage shaft. The sealing device has the advantages that when the sealing device stops moving, the push rod tightly presses the linkage shaft, the sealing ring is squeezed, the sealing function, the water retaining function and the heat preservation function are achieved, after work is started, the push rod leaves the linkage shaft, gaps are reserved between the sealing ring and the linkage shaft as well as between the sealing ring and the bin body, abrasion of sealing pieces is greatly reduced, meanwhile, the driving assembly is arranged on the outer side, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of experimental equipment technology, specifically to a waterproof and heat-insulating transmission structure. Background Technology

[0002] In biological and chemical experiments, it is often necessary to preserve or allow biological samples to stand at specific temperatures. Sample chambers are used for this purpose, and these chambers contain moving components that transport the samples. These components are typically sealed with rubber parts, which are in direct contact with the moving parts and are prone to wear and failure. In some sample chambers, the entire moving component is located inside the chamber, and over time, the motor inside is susceptible to corrosion and damage, making it difficult to repair. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a waterproof and heat-insulating transmission structure. The power unit is located on the outside of the sample chamber. It automatically seals when stopped and automatically releases the seal when running, which greatly reduces wear and improves the durability of the seal.

[0004] Specifically, this utility model discloses a waterproof and heat-insulating transmission structure, including:

[0005] A drive assembly is located on the outside of the chamber body. The drive assembly is connected to a linkage shaft that passes through the chamber body. A sealing ring is provided between the linkage shaft and the inner wall of the chamber body.

[0006] The movable clamping assembly includes a lead screw connected to the linkage shaft, a lead screw seat on the lead screw, a push rod on the lead screw seat, and a lead screw nut on the lead screw. The lead screw nut is used to drive the push rod to move and clamp the linkage shaft.

[0007] The advantages of adopting the above technical solution are that when the movement stops, the push rod presses against the linkage shaft, and the sealing ring is squeezed, which plays a role in sealing, water blocking and heat preservation. After the operation starts, the push rod leaves the linkage shaft, and a gap is left between the sealing ring and the linkage shaft and the chamber body, which greatly reduces the wear of the sealing components. At the same time, the drive component is set on the outside, which extends the service life.

[0008] Furthermore, the drive assembly includes a drive motor and a motor coupling, the motor coupling being connected to the output shaft of the drive motor, and the other end of the motor coupling being connected to the linkage shaft.

[0009] The advantage of adopting the above technical solution is that when the transmission structure fails, the moving clamping component inside the chamber and the driving component on the outside can be disassembled separately, which facilitates maintenance and replacement.

[0010] Furthermore, the push rod passes through the lead screw seat, the lead screw seat has a through hole for the push rod to pass through, the through hole has a limiting groove, and the push rod has a limiting step that cooperates with the limiting groove.

[0011] The advantage of adopting the above technical solution is that the push rod can move within the limiting groove, and the setting of the limiting step and the limiting groove can prevent the push rod from coming out of the limiting groove, thus ensuring the position of the push rod.

[0012] Furthermore, a spring is provided on the push rod, and the two ends of the spring abut against the limiting step and the side wall of the limiting groove.

[0013] The advantage of adopting the above technical solution is that the spring is used to reset the push rod. When the entire structure stops running, the push rod is pressed and the spring contracts. When the entire mechanism starts running, the screw nut moves away and the push rod resets, without applying a clamping force to the linkage shaft.

[0014] Furthermore, the lead screw and the linkage shaft are connected by a lead screw coupling. The linkage shaft has a mounting groove on its side, and the lead screw coupling is disposed in the mounting groove and connected to the linkage shaft.

[0015] The advantage of adopting the above technical solution is that by setting a screw coupling for connection, disassembly is convenient, and the screw coupling is set in the mounting groove, which plays a protective role.

[0016] Furthermore, the inner wall of the chamber is provided with an insulation layer.

[0017] The advantage of adopting the above technical solution is that the insulation layer is set up to keep the entire silo warm and insulated.

[0018] Furthermore, the lead screw is a bidirectional lead screw, the lead screw nut is set at one end of the lead screw, the other end of the lead screw is set with a movable nut, the movable nut is connected to a mounting plate, the mounting plate is connected to a moving platform, and the moving platform reciprocates.

[0019] The advantage of adopting the above technical solution is that the rotation of the lead screw moves the moving nut, which in turn moves the moving platform. The sample is placed on the moving platform, allowing the sample to be moved to the sampling position for collection. A single lead screw achieves both the functions of moving the moving platform and sealing and heat preservation.

[0020] Furthermore, the push rods are symmetrically arranged, and when the movement stops, the lead screw nut presses the push rods together.

[0021] The advantage of adopting the above technical solution is that the symmetrically arranged push rods press against both sides of the linkage shaft, making the sealing ring fit tightly against the side wall of the chamber, thus achieving the functions of sealing, heat preservation, and waterproofing.

[0022] Furthermore, a guide rod is provided on the side of the lead screw, and a slider is provided on the guide rod, the slider being connected to the moving platform.

[0023] The advantage of adopting the above technical solution is that the guide rod plays a guiding role, shares the pressure of the moving platform on the lead screw, and ensures that the moving platform moves smoothly. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0025] Figure 1 This is a cross-sectional view of the waterproof and heat-insulating transmission structure of this utility model.

[0026] Figure 2 This is an enlarged view of section A of this utility model.

[0027] Figure 3 This is the isometric drawing of this utility model.

[0028] Figure 4 This is a cross-sectional view of the push rod assembly of this utility model.

[0029] The reference numerals used in the attached figures are as follows:

[0030] 1. Chamber body; 11. Insulation layer; 2. Linkage shaft; 21. Mounting groove; 3. Sealing ring; 4. Lead screw; 41. Lead screw seat; 42. Limiting groove; 43. Lead screw coupling; 44. Lead screw nut; 5. Push rod; 51. Limiting step; 52. Spring; 7. Drive motor; 71. Motor coupling; 72. Motor mounting base; 8. Moving nut; 81. Mounting plate; 82. Moving platform; 9. Guide rod. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings.

[0032] like Figure 1-3 As shown, this utility model discloses a waterproof and heat-insulating transmission structure, comprising:

[0033] A drive assembly is located on the outside of the chamber 1. The drive assembly is connected to a linkage shaft 2. The linkage shaft 2 passes through the chamber 1 and rotates. A sealing ring 3 is provided between the linkage shaft 2 and the inner wall of the chamber 1. The linkage shaft 2 can move a certain distance along the axial direction.

[0034] The movable clamping assembly includes a lead screw 4 connected to the linkage shaft 2, a lead screw seat 41 on the lead screw 4, a bearing inside the lead screw seat 41, a push rod 5 on the lead screw seat 4, and a lead screw nut 44 on the lead screw 4. The lead screw nut 44 is used to drive the push rod 5 to move and clamp the linkage shaft 2.

[0035] The advantages of adopting the above technical solution are that when the movement stops, the push rod 5 presses against the linkage shaft 2, and the sealing ring 3 is squeezed, which plays a role in sealing, water blocking and heat preservation. After the operation starts, the push rod 5 leaves the linkage shaft 2, and a gap is left between the sealing ring 3 and the linkage shaft 2 and the chamber 1, which greatly reduces the wear of the sealing components. At the same time, the drive component is set on the outside, which extends the service life.

[0036] In some implementations, the drive assembly includes a drive motor 7 and a motor coupling 71. The motor coupling 71 is connected to the output shaft of the drive motor 7, and the other end of the motor coupling 71 is connected to the linkage shaft 2. A motor mounting base 72 is provided on the outside of the drive motor 7, and the drive motor 7 is mounted on the outside of the chamber 1.

[0037] Furthermore, the push rod 5 is positioned through the lead screw seat 41 (as shown in the image). Figure 4 As shown, the lead screw seat 41 is fixed to the inside of the housing 1 by bolts. The lead screw seat 41 has a through hole for the push rod 5 to pass through, and a limiting groove 42 is provided inside the through hole. The push rod 5 has a limiting step 51 that cooperates with the limiting groove 42. The limiting step 51 restricts the movement of the push rod 5 within the limiting groove 42, preventing the push rod 5 from coming out. A spring 52 is fitted on the push rod 5, with both ends of the spring 52 abutting against the limiting step 51 and the side wall of the limiting groove 42. The spring 52 is used to reset the push rod 5. When the entire structure stops running, the push rod 5 is pressed, and the spring 52 retracts. When the entire mechanism starts running, the lead screw nut 44 moves away, the push rod 5 resets, and no pressing force is applied to the linkage shaft 2.

[0038] Furthermore, the lead screw 4 and the linkage shaft 2 are connected by a lead screw coupling 43. The linkage shaft 2 has a mounting groove 21 on its side, and a protrusion is provided within the mounting groove 21. The lead screw coupling 43 is positioned within the mounting groove 21 and connects with the protrusion and the end of the lead screw 4. The lead screw coupling 43 facilitates disassembly, and its placement within the mounting groove 21 also provides protection.

[0039] In some implementation schemes, the inner wall of the chamber 1 is provided with a heat insulation layer 11. Since the sample requires a specific temperature during the preservation process, the heat insulation layer 11 on the inner wall of the chamber 1 plays a good role in heat preservation and insulation.

[0040] In some implementations, the lead screw 4 is a bidirectional lead screw, with half of its threads being left-handed and the other half right-handed. A lead screw nut 44 is located at one end of the lead screw 4, and a movable nut 8 is located at the other end. The movable nut 8 is connected to a mounting plate 81, and the movable nut 8 and mounting plate 81 are fixed together by screws. Both the movable nut 8 and the lead screw nut 44 move along the lead screw 4. A movable platform 82 is connected to the mounting plate 81, and the movable platform 82 reciprocates. When the lead screw 4 rotates, the movable nut 8 drives the movable platform 82 to move, placing the sample on the movable platform 82 and moving it to the sampling position for sampling. When the movement stops, the lead screw 4 rotates in the opposite direction, the movable platform 82 returns to its initial position, and the push rod 41 presses against the linkage shaft. Thus, one lead screw 4 achieves both sample movement and sealing / insulation functions.

[0041] Furthermore, the push rods 5 are symmetrically arranged. When the movement stops, the lead screw nut 44 presses the push rods 5 tightly. The symmetrically arranged push rods 5 press against both sides of the linkage shaft 2, making the sealing ring 3 and the side wall of the chamber 1 fit tightly, thus achieving the functions of sealing, heat insulation, and waterproofing.

[0042] In some implementations, a guide rod 9 is provided on the side of the lead screw 4, and a bearing is provided inside the housing 1. The two ends of the guide rod 9 extend into the bearing, and a slider is provided on the guide rod 9. The slider slides along the moving shaft and is connected to the moving platform 82. The guide shaft plays a guiding role, distributing the pressure of the moving platform 82 on the lead screw 4 and ensuring smooth movement of the moving platform 82.

[0043] During the movement, when the movement stops, the lead screw nut 44 is in the leftmost initial position. At this time, the push rod 5 pushes the linkage shaft 2 close to the inner wall of the chamber 1 and presses against the sealing ring 3, thereby achieving a sealing and waterproofing effect. At the same time, the insulation layer 11, the heat insulation material, and the linkage shaft 2 insulate the temperature, achieving a heat insulation effect.

[0044] When sampling is required, the drive motor 7 drives the motor coupling 71, which in turn drives the linkage shaft 2, which in turn drives the lead screw coupling 43 to rotate. This causes the lead screw 4 to rotate, making the lead screw nut 44 move to the right (away from the sealing ring 3). Due to the elasticity of the sealing ring 3, the linkage shaft 2 moves to the right, thus separating from the inner wall of the chamber 1, preventing wear on the sealing ring 3 during rotation. At this time, the moving platform 82 moves to the sampling position.

[0045] When the movement ends, the lead screw nut 44 returns to the initial position to the left. The lead screw nut 44 pushes the push rod 5, which in turn pushes the linkage shaft 2 to press the sealing ring 3 tightly against the inner wall of the chamber 1, achieving a sealing and waterproofing effect.

[0046] When maintenance or repair is required, the left and right sides of the linkage shaft 2 can be disassembled separately without interfering with each other, thus improving convenience.

[0047] For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A waterproof and heat-insulating transmission structure, characterized in that, include: A drive assembly is located on the outside of the chamber (1). The drive assembly is connected to a linkage shaft (2). The linkage shaft (2) passes through the chamber (1). A sealing ring (3) is provided between the linkage shaft (2) and the inner wall of the chamber (1). The movable clamping assembly includes a lead screw (4) connected to the linkage shaft (2), a lead screw seat (41) is provided on the lead screw (4), a push rod (5) is provided on the lead screw (4), and a lead screw nut (44) is provided on the lead screw (4). The lead screw nut (44) is used to drive the push rod (5) to move and clamp the linkage shaft (2).

2. The waterproof and heat-insulating transmission structure according to claim 1, characterized in that, The drive assembly includes a drive motor (7) and a motor coupling (71). The motor coupling (71) is connected to the output shaft of the drive motor (7), and the other end of the motor coupling (71) is connected to the linkage shaft (2).

3. The waterproof and heat-insulating transmission structure according to claim 1, characterized in that, The push rod (5) is disposed through the lead screw seat (41). The lead screw seat (41) is provided with a through hole for the push rod (5) to pass through. A limiting groove (42) is provided in the through hole. The push rod (5) is provided with a limiting step (51) that cooperates with the limiting groove (42).

4. The waterproof and heat-insulating transmission structure according to claim 3, characterized in that, A spring (52) is provided on the push rod (5), and the two ends of the spring (52) abut against the side wall of the limiting step (51) and the limiting groove (42).

5. The waterproof and heat-insulating transmission structure according to claim 1, characterized in that, The lead screw (4) is connected to the linkage shaft (2) via a lead screw coupling (43). The linkage shaft (2) has a mounting groove (21) on its side, and the lead screw coupling (43) is located in the mounting groove (21) and connected to the linkage shaft (2).

6. The waterproof and heat-insulating transmission structure according to claim 1, characterized in that, The inner wall of the silo (1) is provided with a heat insulation layer (11).

7. The waterproof and heat-insulating transmission structure according to claim 1, characterized in that, The lead screw (4) is a bidirectional lead screw. The lead screw nut (44) is set at one end of the lead screw (4). The other end of the lead screw (4) is provided with a movable nut (8). The movable nut (8) is connected to a mounting plate (81). The mounting plate (81) is connected to a moving platform (82). The moving platform (82) reciprocates.

8. The waterproof and heat-insulating transmission structure according to claim 1, characterized in that, The push rods (5) are symmetrically arranged. When the movement stops, the lead screw nut (44) presses the push rods (5) together.

9. The waterproof and heat-insulating transmission structure according to claim 7, characterized in that, The lead screw (4) is provided with a guide rod (9) on its side, and a slider is provided on the guide rod (9). The slider is connected to the moving platform (82).

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