Installation device and installation method for sealing sleeve of vertical shaft of instrument

Abstract

The invention discloses an instrument vertical shaft sealing sleeve mounting device which comprises a sealing sleeve. The grabbing piece is movably arranged, the grabbing piece comprises an outer pipe and an inner pipe which are provided with an inner cavity and are communicated with each other, the inner pipe comprises a suction end with a closed bottom end, and a plurality of through holes communicated with the inner cavity are formed in the side wall of the suction end; the diameter length of the suction end is matched with the diameter length of a center hole of the sealing sleeve, after negative pressure is formed in the inner cavity, the suction end is inserted into the center hole of the sealing sleeve to conduct sealing performance detection on the sealing sleeve, the sealing sleeve which is detected to be qualified is installed in the insertion hole through the grabbing piece, and the sealing sleeve which is detected to be unqualified is recycled. The sealing sleeve is installed in a negative pressure suction mode, the sealing performance of the sealing sleeve can be synchronously detected in the installation process, the quality of the installed sealing sleeve is guaranteed, the production quality is controlled in a prevention mode, loss caused by the quality problem in the later period is avoided, and the production efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of sealing sleeve installation, and in particular relates to an installation device and an installation method for a sealing sleeve of an instrument vertical shaft. Background Art

[0002] The vertical shaft of the instrument usually needs to be sealed after installation, and the installation of the sealing sleeve is generally achieved through an installation device.

[0003] When installing the sealing sleeve, the installation device in the prior art is unable to synchronously detect the sealing performance of the sealing sleeve, which may result in the installation of a damaged or leaking sealing sleeve, thereby affecting the normal operation of the instrument. In addition, during the installation process, the force of the installation device clamping the sealing sleeve can easily cause the sealing sleeve to deform or even cause damage, which makes the sealing performance of the sealing sleeve even more difficult to guarantee. Summary of the invention

[0004] The present invention aims at solving the problems in the prior art and proposes the following technical solutions:

[0005] The present invention provides an instrument vertical shaft sealing sleeve installation device, comprising:

[0006] Sealing sleeve;

[0007] A movable grabbing member, the grabbing member comprising an outer tube and an inner tube with an inner cavity and communicating with each other, the inner tube comprising a suction end with a closed bottom end, and a side wall of the suction end having a plurality of through holes communicating with the inner cavity;

[0008] The diameter length of the suction end matches the diameter length of the center hole of the sealing sleeve. After negative pressure is formed in the inner cavity, the suction end is inserted into the center hole of the sealing sleeve to test the sealing performance of the sealing sleeve. The sealing sleeve that passes the test is installed in the socket by the grabbing piece, and the sealing sleeve that fails the test is recovered.

[0009] As a preferred embodiment of the above technical solution, the negative pressure straw further includes a mounting end away from the suction end, and the mounting end is detachably connected to the outer tube via a quick-release assembly.

[0010] As a preferred embodiment of the above technical solution, it also includes an installation component and a power component, the installation component includes a support, a movable seat is arranged at the front end of the support, a fixed tube is arranged on the movable seat, a grabbing member is arranged at the bottom end of the fixed tube, a connecting hose is arranged at the top end of the fixed tube, and the other end of the connecting hose is connected to the output end of the vacuum pump, the power component is arranged at the front end of the support and the output end is connected to the movable seat, and the power component drives the movable seat to move up and down.

[0011] As a preferred embodiment of the above technical solution, the quick-release assembly includes an installation groove 1 symmetrically opened along the circumferential direction on the installation end, and a movable ring is movably arranged in the installation groove 1. The movable rings are subjected to external force and are embedded in the installation groove 1 by approaching each other or protrude from the installation groove 1 away from each other under normal conditions. The quick-release assembly also includes an installation groove 2 opened at one end of the outer tube close to the negative pressure straw, and the installation groove 2 is for the installation end to be inserted. A limiting assembly is arranged on the side wall of the outer tube, and the limiting assembly locks or unlocks the installation state of the negative pressure straw.

[0012] As a preferred embodiment of the above technical solution, the limiting assembly includes a limiting hole opened on the side wall of the outer tube and connected to the second mounting groove, a T-shaped movable pin is movably arranged in the limiting hole, the movable pin includes an abutment portion arranged inside the limiting hole and an extension portion extending to the outside, and the extension portion is connected to the outer side wall of the outer tube by a second spring.

[0013] As a preferred embodiment of the above technical solution, each end of the mounting groove 1 that is away from each other is provided with a fixing rod along the extension direction of the mounting groove 1, and the two ends of the movable ring close to the fixing rod are movably inserted into the outside of the fixing rod, and a spring 1 is also sleeved on the outside of the fixing rod, and the two ends of the spring 1 are respectively fixedly connected to the inner wall of the mounting groove 1 and the end of the movable ring.

[0014] As a preferred embodiment of the above technical solution, both ends of the fixed tube are provided with threaded joints, the top end of the outer tube is threadedly connected to the fixed tube through a threaded section matched therewith, and a sealing gasket is also provided at the top end of the outer tube.

[0015] As a preferred embodiment of the above technical solution, the instrument housing is provided with a socket, the socket is inserted with a vertical shaft, the sealing sleeve is arranged on the outside of the vertical shaft, the sealing sleeve includes sealing sleeve 1 and sealing sleeve 2, the sealing sleeve 1 is provided with a card groove along the circumferential direction, and the sealing sleeve 2 is provided with a card connection end matching the card groove.

[0016] The present invention provides an instrument vertical shaft sealing sleeve installation method, comprising the following steps:

[0017] S1, first oil spray: spray oil onto the side wall of the socket;

[0018] S2, sealing sleeve 1 detection: after the gripping member forms negative pressure, the suction end is inserted into the central hole of the sealing sleeve 1 to observe whether the sealing sleeve 1 can be successfully adsorbed;

[0019] S3, sealing sleeve installation: the sealing sleeve that can be successfully adsorbed is installed into the socket by the grasping member;

[0020] S4, sealing sleeve 2 detection: after the gripping member forms negative pressure, the suction end is inserted into the central hole of the sealing sleeve 2 to observe whether the sealing sleeve 2 can be successfully adsorbed;

[0021] S5, installation of the second sealing sleeve: the second sealing sleeve that can be successfully adsorbed is installed into the socket by the grasping member;

[0022] S6, second oil injection: spray oil into the center holes of the sealing sleeve 1 and the sealing sleeve 2;

[0023] S7. Install the vertical shaft: insert the vertical shaft along the center holes of sealing sleeve 1 and sealing sleeve 2.

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

[0025] (1) The present invention installs the sealing sleeve by means of negative pressure suction, and can realize the synchronous detection of the sealing performance of the sealing sleeve during the installation process. That is, during the process of the sealing sleeve being sucked by the grasping member, if the sealing sleeve has quality defects such as damage or leakage, the grasping member cannot successfully absorb the sealing sleeve. The sealing sleeve with quality problems can be checked by checking the suction condition of the sealing sleeve to ensure the quality of the installed sealing sleeve, and the production quality can be controlled in a preventive manner to avoid losses caused by quality problems in the later stage and improve production efficiency.

[0026] (2) The present invention can also achieve gentle gripping of the sealing sleeve by installing the sealing sleeve using negative pressure, thereby reducing the possibility of damaging or leaving marks on the sealing sleeve, ensuring that the sealing performance of the sealing sleeve is not damaged, and further improving the installation quality.

[0027] (3) The present invention can realize quick disassembly of the inner tube by configuring the inner tube and the outer tube to be detachably connected, so as to facilitate the cleaning of the inner tube. At the same time, the inner tube of the suction end with different diameters can be replaced to realize the grasping of sealing sleeves with different diameters, making it more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 What is shown is a three-dimensional schematic diagram of the instrument housing in the embodiment;

[0029] Figure 2 The diagram shows the cooperation between the vertical shaft, the sealing sleeve and the plug hole in the embodiment;

[0030] Figure 3 What is shown is a three-dimensional schematic diagram of a sealing sleeve 1 in the embodiment;

[0031] Figure 4 What is shown is a three-dimensional schematic diagram of the sealing sleeve 2 in the embodiment;

[0032] Figure 5 What is shown is a three-dimensional schematic diagram of the sealing sleeve 2 in the embodiment;

[0033] Figure 6 What is shown is an overall three-dimensional schematic diagram of the installation device in the embodiment;

[0034] Figure 7 What is shown is a schematic diagram of the front view of the installation assembly in the embodiment;

[0035] Figure 8 What is shown is a schematic diagram of the structure of the negative pressure suction tube in the embodiment;

[0036] Fig. 9 It is shown that Figure 8 A schematic diagram of the structure enlargement in the middle;

[0037] Fig.10 It is shown that Figure 7 A magnified schematic diagram of the structure at B in the middle;

[0038] Figure numerals: 1, instrument case; 101, jack; 2, vertical shaft; 3, sealing sleeve 1; 301, card slot; 4, sealing sleeve 2; 401, card connection end; 402, sealing end; 10, installation assembly; 11, support; 12, movable seat; 13, fixed tube; 14, connecting hose; 15, guide groove; 20, power part; 40, grabbing part; 41, outer tube; 42, inner cavity; 43, inner tube; 431, suction end; 4311, through hole; 432, installation end; 50, quick release assembly; 51, installation slot 1; 52, movable ring; 53, fixing rod; 54, spring 1; 55, movable pin; 56, extension part; 57, spring 2; 58, sealing gasket. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0040] Example 1

[0041] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, Figure 1 What is shown is a three-dimensional schematic diagram of the instrument housing in the embodiment; Figure 2 The diagram shows the cooperation between the vertical shaft, the sealing sleeve and the plug hole in the embodiment; Figure 3 What is shown is a three-dimensional schematic diagram of a sealing sleeve 1 in the embodiment; Figure 4 What is shown is a three-dimensional schematic diagram of the sealing sleeve 2 in the embodiment;

[0042] The instrument housing 1 is provided with a plug hole 101, the plug hole 101 is inserted with a vertical shaft 2, the vertical shaft 2 is externally sleeved with a sealing sleeve, and the sealing sleeve includes a sealing sleeve 1 3 and a sealing sleeve 2 4;

[0043] After the sealing sleeve 1 3 and the sealing sleeve 2 4 are installed into the socket 101 in sequence through the installation device, the vertical shaft 2 is inserted into the socket 101 along the center holes of the sealing sleeve 1 3 and the sealing sleeve 2 4, and the sealing sleeve 1 3 and the sealing sleeve 2 4 realize the sealing inside the socket 101.

[0044] The center holes of the sealing sleeve 1 3 and the sealing sleeve 2 4 have the same diameter, ensuring that the vertical shaft 2 and the center holes of the sealing sleeve 1 3 and the sealing sleeve 2 4 are in a close fitting and sealing state.

[0045] A card slot 301 is circumferentially provided on the sealing sleeve 1 3 , a card connection end 401 matching the card slot 301 is provided on the sealing sleeve 2 4 , and a sealing end 402 is also provided on the end of the sealing sleeve 2 4 away from the card connection end 401 , and the diameter length of the sealing end 402 is greater than the diameter length of the insertion hole 101 .

[0046] During installation, the sealing sleeve 1 3 is first installed into the socket 101, and then the sealing sleeve 2 4 is installed on the top of the sealing sleeve 1 3, the clamping end 401 of the sealing sleeve 2 4 is clamped into the clamping groove 301 of the sealing sleeve 1 3, and the sealing end 402 is located outside the top of the socket 101, and finally the vertical shaft 2 is inserted along the center hole of the sealing sleeve 1 3 and the sealing sleeve 2 4.

[0047] By the mutual snap-fitting cooperation between the snap-fitting end 401 of the sealing sleeve 2 4 and the snap-fitting groove 301 of the sealing sleeve 1 3, the snap-fitting end 401 can squeeze the sealing sleeve 1 3, making it fit more closely with the side wall of the socket 101, thereby increasing the sealing performance, and further ensuring the sealing effect by sealing the sealing end 402 at the open end of the socket 101.

[0048] During operation, it also includes an oil spraying step, first spraying oil into the socket 101, then installing the sealing sleeve 1 3 and the sealing sleeve 2 4 in sequence, and then spraying oil again before installing the vertical shaft 2; the oil spraying can lubricate the installation process on the one hand, and on the other hand, it can form oil seals on the side walls of the socket 101 and the center holes of the sealing sleeve 1 3 and the sealing sleeve 2 4, further enhancing the sealing effect.

[0049] like Figure 6 , Figure 7 , Figure 8 As shown, Figure 6 What is shown is an overall three-dimensional schematic diagram of the installation device in the embodiment; Figure 7 What is shown is a schematic diagram of the front view of the installation assembly in the embodiment; Figure 8 What is shown is a schematic diagram of the structure of the negative pressure suction tube in the embodiment;

[0050] The instrument vertical shaft seal sleeve installation device includes:

[0051] A movable grabbing member 40, the grabbing member 40 comprises an outer tube 41 and an inner tube 43 which are connected to each other and have an inner cavity 42, the inner tube 43 comprises a suction end 431 with a closed bottom end, and a side wall of the suction end 431 is provided with a plurality of through holes 4311 which are connected to the inner cavity 42;

[0052] The diameter length of the suction end 431 matches the diameter length of the center hole of the sealing sleeve. After negative pressure is formed in the inner cavity 42, the suction end 431 is inserted into the center hole of the sealing sleeve to test the sealing performance of the sealing sleeve. The sealing sleeve that passes the test is installed in the socket 101 by the grabbing piece 40, and the sealing sleeve that fails the test is recycled.

[0053] By installing the sealing sleeve in a negative pressure suction manner, the sealing performance of the sealing sleeve can be simultaneously detected during the installation process. That is, during the process of the grasping member 40 absorbing the sealing sleeve, if the sealing sleeve has quality defects such as damage or leakage, the grasping member 40 cannot successfully absorb the sealing sleeve. The sealing sleeve with quality problems can be checked by checking the suction situation of the sealing sleeve to ensure the quality of the installed sealing sleeve, and the production quality can be controlled in a preventive manner to avoid losses caused by quality problems in the later stage and improve production efficiency.

[0054] When the grabbing member 40 is installing the sealing sleeve, the suction end 431 of the inner tube 43 is inserted into the central hole of the sealing sleeve, and then the sealing sleeve with good quality is adsorbed and sleeved on the suction end 431 by the negative pressure formed in the inner cavity 42 and the through hole 4311, and then the grabbing member 40 is moved to put it into the insertion hole 101 to complete the installation;

[0055] The method of installing the sealing sleeve by using negative pressure can also achieve gentle gripping of the sealing sleeve, reduce the possibility of damaging the sealing sleeve or leaving marks, ensure that the sealing performance of the sealing sleeve is not destroyed, and further improve the installation quality.

[0056] like Figure 5 , Figure 6 As shown, Figure 5 The three-dimensional schematic diagram of the sealing sleeve 2 in the embodiment is shown. Figure 6 What is shown is an overall three-dimensional schematic diagram of the installation device in the embodiment;

[0057] The instrument vertical shaft seal sleeve installation device also includes:

[0058] The mounting assembly 10 includes a support 11, two movable seats 12 are symmetrically arranged at the front end of the support 11, two sets of fixed tubes 13 are arranged on each movable seat 12, a grabber 40 is arranged at the bottom end of the fixed tube 13, a connecting hose 14 is arranged at the top end of the fixed tube 13, and the other end of the connecting hose 14 is connected to the output end of the vacuum pump;

[0059] The power member 20, the number of the power members 20 is matched with the number of the movable seats 12, the power member 20 is arranged at the front end of the support 11 and the output end is connected to the movable seat 12, the power member 20 drives the movable seat 12 to move up and down, and the movable seat 12 moves up and down to drive the grabbing member 40 to move up and down.

[0060] The support 11 and the movable seat 12 are provided to realize the installation of the grabbing member 40, the fixed pipe 13 and the connecting hose 14 connected to the vacuum pump are provided to increase the vacuum source for the grabbing member 40, and the power member 20 is provided to complete the installation action of the grabbing member 40. The power member 20 is a cylinder.

[0061] In this embodiment, two independent movable seats 12 are provided, and two grabbing members 40 are provided on each movable seat 12, so that the two grabbing members 40 on one movable seat 12 can grab two sealing sleeves 1 3 at the same time, and the two grabbing members 40 on the other movable seat 12 can grab two sealing sleeves 2 4 at the same time, thereby realizing the simultaneous installation of the two sockets 101 on the instrument housing 1.

[0062] A guide groove 15 along the vertical direction is opened at the front end of the support 11 corresponding to the position of each movable seat 12, and a slider that slides with the guide groove 15 is correspondingly provided at one end of the movable seat 12 close to the guide groove 15. The movable seat 12 is slidably set on the support 11 along the vertical direction through the provided slider.

[0063] The cooperation between the guide groove 15 and the slide block ensures the stability of the movable seat 12 when it moves in the vertical direction, so as to ensure the accuracy of the installation of the sealing sleeve 1 3 and the sealing sleeve 2 4.

[0064] Both ends of the fixed tube 13 are provided with threaded joints, the top end of the outer tube 41 is threadedly connected to the fixed tube 13 via a threaded section matched therewith, and a sealing gasket 58 is also provided at the top end of the outer tube 41 .

[0065] The connecting end of the connecting hose 14 and the fixed tube 13 is also provided with a threaded section matching the threaded joint of the fixed tube 13. The two ends of the fixed tube 13 are detachably connected to the outer tube 41 and the connecting hose 14 through the provided threaded joints, which facilitates the quick disassembly and cleaning of the grabbing piece 40.

[0066] like Figure 7 , Figure 8 , Fig. 9 , Fig.10 As shown, Figure 7 What is shown is a schematic diagram of the front view of the installation assembly in the embodiment; Figure 8 What is shown is a schematic diagram of the structure of the negative pressure suction tube in the embodiment; Fig. 9 It is shown that Figure 8 A schematic diagram of the structure enlargement in the middle; Fig.10 It is shown that Figure 7 A magnified schematic diagram of the structure at B in the middle;

[0067] The inner tube 43 further includes a mounting end 432 away from the suction end 431, and the mounting end 432 is detachably connected to the outer tube 41 via a quick-release assembly 50;

[0068] By arranging the inner tube 43 and the outer tube 41 in a detachable connection, the inner tube 43 can be quickly disassembled to facilitate the cleaning of the inner tube 43. At the same time, by replacing the inner tube 43 with a suction end 431 of different diameters, the sealing sleeves of different diameters can be grasped, making it more flexible.

[0069] The quick-release assembly 50 includes a mounting groove 51 symmetrically provided along the circumferential direction on the mounting end 432, and a movable ring 52 is movably provided in the mounting groove 51. The movable ring 52 is moved closer to the mounting groove 51 by an external force, or is moved away from the mounting groove 51 under normal conditions.

[0070] The quick-release assembly 50 further includes a second installation groove provided at one end of the outer tube 41 close to the inner tube 43, the second installation groove is for the installation end 432 to be inserted into, and a limit assembly is provided on the side wall of the outer tube 41, the limit assembly locks or unlocks the installation state of the inner tube 43;

[0071] The limiting assembly includes a limiting hole opened on the side wall of the outer tube 41 and connected to the second mounting groove. A T-shaped movable pin 55 is movably arranged in the limiting hole. The movable pin 55 includes an abutment portion arranged inside the limiting hole and an extension portion 56 extending to the outside. The extension portion 56 is connected to the outer side wall of the outer tube 41 through a second spring 57.

[0072] When installing the inner tube 43, firstly, press the movable ring 52 on the inner tube 43 by external force, so that the movable ring 52 is embedded in the installation groove 1 51, and then the inner tube 43 can be smoothly inserted into the installation groove 2 of the outer tube 41. During the insertion process, when the movable ring 52 moves to the position of the limiting hole, the extrusion force on the movable ring 52 disappears, and the movable ring 52 is reset and enters the limiting hole. At this time, the inner tube 43 is limited and fixed, and the installation is completed; when the inner tube 43 needs to be disassembled, press the movable pin 55 in the limiting hole, so that the abutment part of the movable pin 55 squeezes the movable ring 52 until it enters the installation groove 1 51 again. At this time, move the inner tube 43 downward, so that the inner tube 43 can be smoothly pulled out to achieve disassembly.

[0073] Furthermore, a chamfer is provided at the bottom end of the limiting hole; the chamfer makes it easier to install and remove the inner tube 43.

[0074] The ends of each mounting groove 51 that are away from each other are provided with a fixing rod 53 along the extending direction of the mounting groove 51, and the two ends of the movable ring 52 close to the fixing rod 53 are movably inserted outside the fixing rod 53, and the outside of the fixing rod 53 is also sleeved with a spring 54, and the two ends of the spring 54 are respectively fixedly connected to the inner wall of the mounting groove 51 and the end of the movable ring 52;

[0075] During the process of the movable ring 52 and the fixed rod 53 being movable and coordinated, the movable ring 52 will not be separated from the fixed rod 53 and the mounting groove 1 51 . The state of the movable ring 52 can be adjusted and reset by means of the fixed rod 53 and the spring 1 54 .

[0076] Example 2

[0077] The installation method of the instrument vertical shaft sealing sleeve includes the following steps:

[0078] S1, first oil injection: spraying oil onto the side wall of the socket 101;

[0079] S2, testing the sealing sleeve 3: after the gripping member 40 forms negative pressure, the suction end 431 is inserted into the central hole of the sealing sleeve 3 to observe whether the sealing sleeve 3 can be successfully adsorbed;

[0080] S3, installation of the sealing sleeve 3: the sealing sleeve 3 that can be successfully adsorbed is installed into the insertion hole 101 by the grabbing member 40;

[0081] S4, testing the sealing sleeve 24: after the gripping member 40 forms negative pressure, the suction end 431 is inserted into the central hole of the sealing sleeve 24 to observe whether the sealing sleeve 24 can be successfully adsorbed;

[0082] S5, installation of the sealing sleeve 2 4: the sealing sleeve 2 4 that can be successfully adsorbed is installed into the insertion hole 101 by the grabbing member 40;

[0083] S6, second oil injection: spray oil into the center holes of the sealing sleeve 1 3 and the sealing sleeve 2 4;

[0084] S7. Install the vertical shaft 2: insert the vertical shaft 2 along the center holes of the sealing sleeve 1 3 and the sealing sleeve 2 4.

[0085] The instrument vertical shaft sealing sleeve installation method provided by the present invention can play a lubricating role in the installation process through two oil injections on the one hand, and can form oil seals on the side walls of the jack 101, the sealing sleeve 1 3, and the sealing sleeve 2 4 at the center holes, further enhancing the sealing effect;

[0086] By installing the sealing sleeve in a negative pressure suction manner, the sealing performance of the sealing sleeve can be simultaneously detected during the installation process. That is, during the process of the grasping member 40 absorbing the sealing sleeve, if the sealing sleeve has quality defects such as damage or leakage, the grasping member 40 cannot successfully absorb the sealing sleeve. The sealing sleeve with quality problems can be checked by the suction of the sealing sleeve to ensure the quality of the installed sealing sleeve, and the production quality can be controlled in a preventive manner to avoid losses caused by quality problems in the later stage and improve production efficiency.

[0087] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. The instrument vertical shaft sealing sleeve installation device is characterized by: include: Sealing sleeve; A movable grabbing member (40), the grabbing member (40) comprising an outer tube (41) and an inner tube (43) which are connected to each other and have an inner cavity (42); the inner tube (43) comprises a suction end (431) with a closed bottom end; a side wall of the suction end (431) is provided with a plurality of through holes (4311) which are connected to the inner cavity (42); The diameter length of the suction end (431) matches the diameter length of the center hole of the sealing sleeve. After negative pressure is formed in the inner cavity (42), the suction end (431) is inserted into the center hole of the sealing sleeve to test the sealing performance of the sealing sleeve. The sealing sleeve that passes the test is installed in the socket by the grabbing member (40), and the sealing sleeve that fails the test is recovered.

2. The instrument vertical shaft sealing sleeve installation device according to claim 1 is characterized in that: The inner tube (43) further comprises a mounting end (432) away from the suction end (431), and the mounting end (432) is detachably connected to the outer tube (41) via a quick-release assembly (50).

3. The instrument vertical shaft sealing sleeve installation device according to claim 1, characterized in that: The invention also comprises a mounting assembly (10) and a power member (20), wherein the mounting assembly (10) comprises a support (11), a movable seat (12) is arranged at the front end of the support (11), a fixed tube (13) is arranged on the movable seat (12), a grabbing member (40) is arranged at the bottom end of the fixed tube (13), a connecting hose (14) is arranged at the top end of the fixed tube (13), the other end of the connecting hose (14) is connected to the output end of the vacuum pump, the power member (20) is arranged at the front end of the support (11) and the output end is connected to the movable seat (12), and the power member (20) drives the movable seat (12) to move up and down.

4. The instrument vertical shaft sealing sleeve installation device according to claim 2, characterized in that: The quick-release assembly (50) comprises a mounting groove (51) symmetrically provided along the circumferential direction on the mounting end (432), a movable ring (52) being movably provided in the mounting groove (51), the movable ring (52) being mutually approached and embedded in the mounting groove (51) under external force or being mutually away from and protruding out of the mounting groove (51) under normal conditions, the quick-release assembly (50) further comprises a mounting groove (2) provided at one end of the outer tube (41) close to the inner tube (43), the mounting groove (2) being inserted into the mounting end (432), a limiting assembly being provided on the side wall of the outer tube (41), the limiting assembly being used to lock or unlock the mounting state of the inner tube (43).

5. The instrument vertical shaft sealing sleeve installation device according to claim 4, characterized in that: The limiting assembly comprises a limiting hole opened on the side wall of the outer tube (41) and connected to the second mounting groove; a T-shaped movable pin (55) is movably arranged in the limiting hole; the movable pin (55) comprises an abutting portion arranged inside the limiting hole and an extending portion (56) extending to the outside; the extending portion (56) is connected to the outer side wall of the outer tube (41) via a second spring (57).

6. The instrument vertical shaft sealing sleeve installation device according to claim 5, characterized in that: Each of the ends of the mounting groove (51) that are away from each other is provided with a fixing rod (53) along the extension direction of the mounting groove (51); both ends of the movable ring (52) close to the fixing rod (53) are movably inserted outside the fixing rod (53); a spring (54) is also sleeved outside the fixing rod (53); and both ends of the spring (54) are respectively fixedly connected to the inner wall of the mounting groove (51) and the end of the movable ring (52).

7. The instrument vertical shaft sealing sleeve installation device according to claim 3, characterized in that: Both ends of the fixed tube (13) are provided with threaded joints, the top end of the outer tube (41) is threadedly connected to the fixed tube (13) via a threaded section matched therewith, and a sealing gasket (58) is also provided at the top end of the outer tube (41).

8. The instrument vertical shaft sealing sleeve installation device according to claim 1, characterized in that: The instrument housing (1) is provided with a plug hole (101), a vertical shaft (2) is inserted into the plug hole (101), the sealing sleeve is sleeved on the outside of the vertical shaft (2), the sealing sleeve comprises a sealing sleeve 1 (3) and a sealing sleeve 2 (4), a card slot (301) is provided on the sealing sleeve 1 (3) along the circumferential direction, and a card connection end (401) matching the card slot (301) is provided on the sealing sleeve 2 (4).

9. A method for installing a sealing sleeve for an instrument vertical shaft, using the sealing sleeve installation device for an instrument vertical shaft as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: S1, first oil spraying: spraying oil onto the side wall of the plug hole (101); S2, testing of the sealing sleeve 1 (3): after the taken piece (40) forms a negative pressure, the suction end (431) is inserted into the central hole of the sealing sleeve 1 (3) to observe whether the sealing sleeve 1 (3) can be successfully adsorbed; S3, installation of the sealing sleeve 1 (3): the sealing sleeve 1 (3) that can be successfully adsorbed is installed into the insertion hole (101) by the grasping member (40); S4, sealing sleeve 2 (4) detection: after the gripping member (40) forms negative pressure, the suction end (431) is inserted into the central hole of the sealing sleeve 2 (4) to observe whether the sealing sleeve 2 (4) can be successfully adsorbed; S5, installation of the sealing sleeve 2 (4): the sealing sleeve 2 (4) that can be successfully adsorbed is installed into the insertion hole (101) by the grasping member (40); S6, second oil injection: spray oil into the center holes of the sealing sleeve 1 (3) and the sealing sleeve 2 (4); S7. Install the vertical shaft (2): insert the vertical shaft (2) along the center holes of the sealing sleeve 1 (3) and the sealing sleeve 2 (4).

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