Heat preservation type magnetofluid sealing device

Abstract

The utility model belongs to the technical field of magnetic fluid sealing, and discloses a heat preservation type magnetic fluid sealing device which comprises a magnetic fluid valve body. The magnetic fluid valve body comprises a first mounting plate, a fixing rod fixedly arranged on the side wall of the first mounting plate, a second mounting plate fixedly arranged on the side wall, away from the first mounting plate, of the fixing rod and a rotating shaft penetrating through the fixing rod and the second mounting plate and fixed to the fixing rod and the second mounting plate, and the interior of the fixing rod is hollow. Two symmetrical connectors are symmetrically installed on the outer wall of the fixing rod, and a connecting assembly used for installing the connectors is arranged on the fixing rod. The device has the effect of improving the practicability of the device.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic fluid sealing, in particular to a heat-insulating magnetic fluid sealing device. Background Technique

[0002] The application of magnetic fluid sealing technology in sealing technology is one of its most important achievements. After decades of development, magnetic fluid sealing has been widely used in many fields such as national defense, aerospace, machinery, electronics, instrumentation, atomic energy, chemical industry, and pharmaceuticals. It is particularly outstanding in three aspects: dust-proof sealing, vacuum sealing, and differential pressure sealing. For example, the sealing of important mechanical rotating parts, especially as the dynamic leak-proof part of equipment in the rotating shaft, has outstanding advantages. It can not only achieve the purpose of leak prevention but also not affect the movement of movable parts. Therefore, the application scope of magnetic fluid sealing technology is getting wider and wider.

[0003] Regarding the above-related technologies, the inventor believes that there are the following defects: when the existing magnetic fluid sealing device is in use, due to the fixed size of the connection port, it can only seal a pipeline route with one diameter and cannot seal pipelines with multiple diameters, thus reducing the practicability of the device. Content of the Utility Model

[0004] In order to solve the above problems, the utility model provides a heat-insulating magnetic fluid sealing device.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: a heat-insulating magnetic fluid sealing device, including a magnetic fluid valve body, the magnetic fluid valve body includes a first mounting plate, a fixed rod fixedly arranged on the side wall of the first mounting plate, a second mounting plate fixedly arranged on the side wall of the fixed rod away from the first mounting plate, and a rotating shaft passing through the fixed rod and the second mounting plate and being fixed to the fixed rod and the second mounting plate. The inside of the fixed rod is hollow, and two symmetrically arranged connection heads are symmetrically installed on the outer wall of the fixed rod. A connection component for installing the connection heads is arranged on the fixed rod.

[0006] By adopting the above technical solutions, when the staff is in use, the magnetic fluid seals the magnetic fluid valve in the fixed rod. Subsequently, the staff connects the pipeline through the connection head. During this process, when the staff needs to replace pipelines of different specifications, the staff needs to start the connection component to replace the connection head, so that the connection head can install pipelines of different sizes, thereby improving the practicability of the device.

[0007] Further, the connecting component includes two connecting cylinders symmetrically arranged on the outer wall of the fixed rod. L-shaped grooves are symmetrically formed on the outer wall of the connecting cylinder, and fixing grooves are formed on the inner wall of the L-shaped grooves. The connecting component further includes a fixing sleeve sleeved on the outer wall of the connecting cylinder and a fixing block installed on the inner wall of the fixing sleeve. The fixing block is slidably connected to the L-shaped groove and the fixing groove, and the fixing sleeve is fixed to the connecting head.

[0008] By adopting the above technical solution, when the staff needs to install the connecting head, the staff needs to sleeve the fixing sleeve on the connecting cylinder. During this process, the staff needs to install the fixing block in the L-shaped groove. Then, the staff slides the fixing sleeve downward, so that the fixing block slides downward under the action of the fixing sleeve. During this process, when the bottom surface of the fixing block abuts against the inner bottom wall of the L-shaped groove, the staff needs to rotate the fixing sleeve, so that the fixing block rotates along the L-shaped groove under the action of the fixing sleeve. Then, when the fixing block is aligned with the fixing groove, the staff needs to slide the fixing block, so that one end of the fixing block slides into the fixing groove, thus completing the installation of the connecting head.

[0009] Further, a sliding groove is formed on the inner wall of the fixing sleeve. The sliding groove is slidably connected to the fixing block, and a first spring is fixedly arranged on the inner wall of the sliding groove. The other end of the first spring is fixedly arranged on the side wall of the fixing block.

[0010] By adopting the above technical solution, when the fixing block is aligned with the fixing groove, the fixing block slides in the direction close to the fixing groove under the action of the first spring, so that one end of the fixing block slides into the fixing groove. During this process, it is not necessary for the staff to manually slide the fixing block, thus reducing the work difficulty of the staff.

[0011] Further, a first inclined surface is formed on the edge where the side wall of the fixing block away from the first spring intersects with the side wall close to the L-shaped groove.

[0012] By adopting the above technical solution, when the staff needs to disassemble the connecting head, the staff needs to rotate the fixing sleeve in the reverse direction, so that the first inclined surface abuts against the inner wall of the fixing groove, thus separating the fixing block from the fixing groove. At this time, after the staff rotates the fixing sleeve in the reverse direction and slides the fixing sleeve upward, the fixing sleeve can be separated from the connecting cylinder, thus completing the disassembly of the connecting head.

[0013] Further, a through groove communicating with the fixing groove is formed through the inner wall of the fixing sleeve. A sliding rod is slidably arranged in the through groove. A fixing hole is formed on the side wall of the fixing block. The sliding rod is made of an elastic material.

[0014] By adopting the above technical solution, when one end of the fixed block slides into the fixed groove, the staff needs to slide the sliding rod in the direction close to the fixed block, so that one end of the sliding rod slides into the fixing hole, thereby reducing the probability of the fixed block shaking when subjected to an external force, and further improving the stability of the device. In addition, when the fixed block is separated from the fixed groove, since the sliding rod is made of an elastic material, the sliding rod is reset.

[0015] Furthermore, a fixing plate is fixedly arranged on the side wall of the sliding rod close to the fixing hole, and the fixing plate is matched with the fixing hole.

[0016] By adopting the above technical solution, the matching of the fixing plate and the fixing hole further reduces the probability of the fixed block shaking when subjected to an external force, and further improves the stability of the device. In addition, the fixed block reduces the probability of the sliding rod separating from the sliding groove, thereby improving the stability of the device.

[0017] Furthermore, a second inclined surface is formed on the edge where the side wall of the sliding rod away from the fixing plate intersects with one of the adjacent side walls.

[0018] By adopting the above technical solution, when the staff installs the pipeline and the connector, the pipeline slides along the inside of the connecting cylinder, so that the pipeline abuts against the second inclined surface, thereby causing the sliding rod to slide in the direction close to the fixed block, and further reducing the difficulty for the staff to slide the sliding rod.

[0019] Furthermore, a sealing ring is fixedly arranged on the inner wall of the fixed groove, and the sliding rod penetrates through the sealing ring.

[0020] By adopting the above technical solution, the sealing ring reduces the probability of leakage of the magnetorheological valve body, thereby improving the sealing performance of the device.

[0021] In summary, the utility model has the following beneficial effects:

[0022] 1. In this application, when the staff is using it, the magnetorheological fluid seals the magnetorheological valve in the fixed rod. Subsequently, the staff connects the pipeline through the connector. During this process, when the staff needs to replace pipelines of different specifications, the staff needs to start the connection component to replace the connector, so that the connector can install pipelines of different sizes, thereby improving the practicability of the device;

[0023] 2. In this application, when the staff needs to install the connector, the staff needs to sleeved the fixing sleeve on the connecting cylinder. During this process, the staff needs to install the fixing block in the L-shaped groove. Subsequently, the staff slides the fixing sleeve downward, so that the fixing block slides downward under the action of the fixing sleeve. During this process, when the bottom surface of the fixing block abuts against the inner bottom wall of the L-shaped groove, the staff needs to rotate the fixing sleeve, so that the fixing block rotates along the L-shaped groove under the action of the fixing sleeve. Subsequently, when the fixing block is aligned with the fixing groove, the staff needs to slide the fixing block, so that one end of the fixing block slides into the fixing groove, thus completing the installation of the connector;

[0024] 3. In this application, when the fixing block is aligned with the fixing groove, the fixing block slides in the direction close to the fixing groove under the action of the first spring, so that one end of the fixing block slides into the fixing groove. During this process, there is no need for the staff to manually slide the fixing block, thus reducing the work difficulty of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is the overall structural schematic diagram of the embodiment of the present utility model;

[0026] Figure 2 is the cross-sectional structural schematic diagram of the connection assembly in the embodiment of the present utility model;

[0027] Figure 3 is the embodiment of the present utility model Figure 2 the cross-sectional structural schematic diagram of A therein;

[0028] Figure 4 is the structural schematic diagram of the connecting cylinder in the embodiment of the present utility model.

[0029] In the figure: 1. Magneto-fluid valve body; 11. First mounting plate; 12. Fixed rod; 13. Second mounting plate; 14. Rotating shaft; 15. Connector; 2. L-shaped groove; 21. Fixing groove; 22. Sliding groove; 23. Through groove; 24. Fixing hole; 3. Connection assembly; 31. Connecting cylinder; 32. Fixing sleeve; 33. Fixing block; 4. First spring; 5. First inclined surface; 6. Slide bar; 7. Fixed plate; 8. Second inclined surface; 9. Sealing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0031] Such as Figures 1-4As shown in the figure, an embodiment of the present application discloses a thermal insulation type magnetic fluid sealing device, which includes a magnetic fluid valve body 1, a connector 15, a connection assembly 3, a first spring 4, a first inclined surface 5, a sliding rod 6, and a fixing plate 7. The magnetic fluid valve body 1 includes a first mounting plate 11, a fixing rod 12, a second mounting plate 13, and a rotating shaft 14. The first mounting plate 11 is a rectangular plate-like structure, and the fixing rod 12 is a hollow cylindrical structure with a horizontal axis. The fixing rod 12 is fixedly arranged on the side wall of the first mounting plate 11. The second mounting plate 13 is a rectangular plate-like structure, and the second mounting plate 13 is fixedly arranged on the side wall of the fixing rod 12 away from the first mounting plate 11. The rotating shaft 14 is a round rod-like structure with an axis coinciding with the axis of the fixing rod 12. The rotating shaft 14 penetrates through the fixing rod 12 and the second mounting plate 13 and is fixed to the fixing rod 12 and the second mounting plate 13. There are two connectors 15, which are symmetrically installed on the outer wall of the fixing rod 12.

[0032] When the staff is using it, the magnetic fluid seals the magnetic fluid valve in the fixing rod 12. Subsequently, the staff connects the pipeline through the connector 15. During this process, when the staff needs to replace pipelines of different specifications, the staff needs to activate the connection assembly 3 to replace the connector 15, so that the connector 15 can be installed with pipelines of different sizes, thereby improving the practicability of the device.

[0033] The connection assembly 3 is arranged on the fixing rod 12 and is used for installing the connector 15. The connection assembly 3 includes a connection cylinder 31, a fixing sleeve 32, and a fixing block 33. The connection cylinder 31 is a hollow cylindrical structure with a vertical axis. There are two connection cylinders 31, which are symmetrically arranged on the outer wall of the fixing rod 12. L-shaped grooves 2 are symmetrically formed on the outer wall of the connection cylinder 31, and fixing grooves 21 are formed on the inner wall of the L-shaped grooves 2. The fixing sleeve 32 is a hollow cylindrical structure with an axis coinciding with the axis of the connection cylinder 31. The fixing sleeve 32 is sleeved on the outer wall of the connection cylinder 31, and the fixing sleeve 32 is fixed to the connector 15. The fixing block 33 is a rectangular block-like structure. The fixing block 33 is installed on the inner wall of the fixing sleeve 32. The fixing block 33 is slidably connected to the L-shaped groove 2 and is also slidably connected to the fixing groove 21.

[0034] When the staff needs to install the connector 15, the staff needs to sleeved the fixing sleeve 32 on the connecting cylinder 31. During this process, the staff needs to install the fixing block 33 in the L-shaped groove 2. Subsequently, the staff slides the fixing sleeve 32 downward, so that the fixing block 33 slides downward under the action of the fixing sleeve 32. During this process, when the bottom surface of the fixing block 33 abuts against the inner bottom wall of the L-shaped groove 2, the staff needs to rotate the fixing sleeve 32, so that the fixing block 33 rotates along the L-shaped groove 2 under the action of the fixing sleeve 32. Subsequently, when the fixing block 33 is aligned with the fixing groove 21, the staff needs to slide the fixing block 33, so that one end of the fixing block 33 slides into the fixing groove 21, thus completing the installation of the connector 15.

[0035] A sliding groove 22 is formed on the inner wall of the fixing sleeve 32, and the sliding groove 22 is slidably connected with the fixing block 33. One end of the first spring 4 is fixedly arranged on the inner wall of the sliding groove 22, and the other end of the first spring 4 is fixedly arranged on the side wall of the fixing block 33.

[0036] When the fixing block 33 is aligned with the fixing groove 21, the fixing block 33 slides in the direction close to the fixing groove 21 under the action of the first spring 4, so that one end of the fixing block 33 slides into the fixing groove 21. During this process, it is not necessary for the staff to manually slide the fixing block 33, thus reducing the work difficulty of the staff.

[0037] A first inclined surface 5 is formed on the edge where the side wall of the fixing block 33 away from the first spring 4 intersects with the side wall close to the L-shaped groove 2.

[0038] When the staff needs to disassemble the connector 15, the staff needs to rotate the fixing sleeve 32 in the reverse direction, so that the first inclined surface 5 abuts against the inner wall of the fixing groove 21, so that the fixing block 33 is separated from the fixing groove 21. At this time, after the staff rotates the fixing sleeve 32 in the reverse direction and slides the fixing sleeve 32 upward, the fixing sleeve 32 can be separated from the connecting cylinder 31, thus completing the disassembly of the connector 15.

[0039] A through groove 23 communicating with the fixing groove 21 is formed through the inner wall of the fixing sleeve 32. The sliding rod 6 is in a rectangular rod shape, and the sliding rod 6 is slidably arranged in the through groove 23. A fixing hole 24 is formed on the side wall of the fixing block 33, and the sliding rod 6 is made of an elastic material.

[0040] When one end of the fixing block 33 slides into the fixing groove 21, the staff needs to slide the sliding rod 6 in the direction close to the fixing block 33, so that one end of the sliding rod 6 slides into the fixing hole 24, thus reducing the probability of the fixing block 33 shaking when subjected to an external force, and further improving the stability of the device. In addition, when the fixing block 33 is separated from the fixing groove 21, since the sliding rod 6 is made of an elastic material, the sliding rod 6 is reset.

[0041] The fixing plate 7 is fixedly arranged on the side wall of the sliding rod 6 close to the fixing hole 24, and the fixing plate 7 and the fixing hole 24 are mutually matched.

[0042] The mutual matching of the fixing plate 7 and the fixing hole 24 further reduces the probability of the fixing block 33 shaking when subjected to an external force, thereby improving the stability of the device. In addition, the fixing block 33 reduces the probability of the sliding rod 6 and the sliding groove 22 separating from each other, thus improving the stability of the device.

[0043] In order to reduce the difficulty for the staff to slide the sliding rod 6, a second inclined surface 8 is provided on the edge where the side wall of the sliding rod 6 away from the fixing plate 7 intersects with one of the adjacent side walls. When the staff installs the pipeline and the connector 15, the pipeline slides along the inside of the connecting cylinder 31, and then the pipeline abuts against the second inclined surface 8, so that the sliding rod 6 slides towards the direction close to the fixing block 33, thereby reducing the difficulty for the staff to slide the sliding rod 6.

[0044] In order to improve the sealing performance of the device, a sealing ring 9 is fixedly arranged on the inner wall of the fixing groove 21, and the sliding rod 6 passes through the sealing ring 9. The sealing ring 9 reduces the probability of leakage of the magnetorheological valve body, thereby improving the sealing performance of the device.

[0045] The working principle of a heat-insulating magnetorheological sealing device in this embodiment is as follows: When the staff is using it, the magnetorheological fluid seals the magnetorheological valve in the fixing rod 12. Subsequently, the staff connects the pipeline through the connector 15. During this process, when the staff needs to replace pipelines of different specifications, the staff needs to start the connecting assembly 3 to replace the connector 15, so that the connector 15 can install pipelines of different sizes, thereby improving the practicability of the device.

[0046] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. A heat-insulating magnetic fluid sealing device, comprising a magnetic fluid valve body (1), characterized in that: The magnetic fluid valve body (1) comprises a first mounting plate (11), a fixing rod (12) fixedly arranged on a side wall of the first mounting plate (11), a second mounting plate (13) fixedly arranged on a side wall of the fixing rod (12) away from the first mounting plate (11), and a rotating shaft (14) penetrating the fixing rod (12) and the second mounting plate (13) and fixed to the fixing rod (12) and the second mounting plate (13), wherein the interior of the fixing rod (12) is hollow, and two mutually symmetrical connecting heads (15) are symmetrically arranged on an outer wall of the fixing rod (12), and a connecting assembly (3) for installing the connecting head (15) is arranged on the fixing rod (12).

2. The heat-insulating magnetic fluid sealing device according to claim 1, characterized in that: The connecting assembly (3) comprises two connecting tubes (31) symmetrically arranged on the outer wall of the fixing rod (12); the outer wall of the connecting tube (31) is symmetrically provided with an L-shaped groove (2); the inner wall of the L-shaped groove (2) is provided with a fixing groove (21); the connecting assembly (3) further comprises a fixing sleeve (32) sleeved on the outer wall of the connecting tube (31) and a fixing block (33) mounted on the inner wall of the fixing sleeve (32); the fixing block (33) is slidably connected to the L-shaped groove (2); the fixing block (33) is slidably connected to the fixing groove (21); and the fixing sleeve (32) and the connecting head (15) are fixed to each other.

3. The heat-insulating magnetic fluid sealing device according to claim 2 is characterized in that: A sliding groove (22) is provided on the inner wall of the fixing sleeve (32), and the sliding groove (22) is slidably connected to the fixing block (33). A first spring (4) is fixedly arranged on the inner wall of the sliding groove (22), and the other end of the first spring (4) is fixedly arranged on the side wall of the fixing block (33).

4. The heat-insulating magnetic fluid sealing device according to claim 3 is characterized in that: A first inclined surface (5) is provided on the edge where the side wall of the fixing block (33) away from the first spring (4) and the side wall of the fixing block (33) close to the L-shaped groove (2) intersect.

5. The heat-insulating magnetic fluid sealing device according to claim 2, characterized in that: A through groove (23) communicating with the fixing groove (21) is formed through the inner wall of the fixing sleeve (32), a sliding rod (6) is slidably arranged in the through groove (23), a fixing hole (24) is formed on the side wall of the fixing block (33), and the sliding rod (6) is a sliding rod (6) made of elastic material.

6. The heat-insulating magnetic fluid sealing device according to claim 5 is characterized in that: A fixing plate (7) is fixedly arranged on the side wall of the sliding rod (6) close to the fixing hole (24), and the fixing plate (7) and the fixing hole (24) match each other.

7. A heat-insulating magnetic fluid sealing device according to claim 6, characterized in that: A second inclined surface (8) is provided on the edge where the side wall of the sliding rod (6) away from the fixing plate (7) intersects with one of the adjacent side walls.

8. The heat-insulating magnetic fluid sealing device according to claim 5, characterized in that: A sealing ring (9) is fixedly arranged on the inner wall of the fixing groove (21), and the sliding rod (6) passes through the sealing ring (9).

Images