Dismounting tool special for DTRO sealing sleeve

Abstract

The utility model discloses a special dismounting tool for a DTRO sealing sleeve, which comprises a puller rotating handle, a puller ejector rod vertically arranged in the middle of the puller rotating handle, a first puller side plate and a second puller side plate arranged below the puller rotating handle, and a positioning ring sleeved on the outer sides of the first puller side plate and the second puller side plate, according to the utility model, the outer sides of the first puller side plate and the second puller side plate are sleeved with the positioning rings to form a radial displacement restraining mechanism, so that the puller side plates are prevented from moving outwards and being unhooked when the device is stressed, and the dismounting stability and safety of the device are improved; the top plate and the bottom plate are arranged through the puller rotating handle, a set of thread matching structure is additionally arranged, the axial shearing force is dispersed to the two sets of independent force bearing units through the double-thread stress shunting design, the plastic deformation upper limit of the thread structure of the device is increased, the structure of the device is more stable, and the cost is reduced while the structural stability is ensured.

Description

Technical Field

[0001] This utility model relates to the field of puller tooling technology, specifically to a special disassembly tool for DTRO sealing sleeves. Background Technology

[0002] DTRO (Disc Tube Reverse Osmosis) technology plays a crucial role in the treatment of high-concentration wastewater, and the disassembly of the sealing sleeve of its core component, the membrane column, is a critical step in the maintenance process. A DTRO membrane column consists of several precision components, including membrane sheets, a flow guide plate, a central membrane column, a pressure-resistant outer shell, and seals (such as O-rings). The sealing sleeve (or sealing ring) is typically located in grooves on both sides of the flow guide plate, used to isolate wastewater and purified water channels and prevent mixing. While this structural design improves separation efficiency, it also increases the complexity of disassembly. Therefore, a balance must be struck between efficient disassembly and the protection of structural precision during the sealing sleeve disassembly process.

[0003] To address the aforementioned technical problems, existing technologies, such as the Chinese patent disclosure of a puller tool for DTRO maintenance (authorization announcement number: CN 218226427 U), include a puller beam with a central diaphragm column vertically positioned below it. Two pull plates are rotatably connected to both sides of the puller beam via a rotating shaft. The lower ends of the two pull plates on the same side are fixedly connected to semi-circular hooks. The two semi-circular hooks, with their closest side engaged inside the groove of the sealing sleeve, allow for the removal of the sealing sleeve by rotating the central diaphragm column. However, this device has the following shortcomings: First, while the device applies an upward force to the sealing sleeve by engaging the two semi-circular hooks in the groove, there is no lateral force between the hooks, posing a risk of disengagement. Second, DTRO operates under high pressure for extended periods, resulting in a tight fit between the sealing sleeve and the central diaphragm column. Therefore, removing the sealing sleeve requires significant force, and prolonged use of this device can cause delamination between the puller beam and the puller screw, damaging the device. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background art, and thus propose a special disassembly tool for DTRO sealing sleeves. This invention forms a radial displacement constraint mechanism by fitting positioning rings around the outer sides of the first and second puller side plates, preventing the puller side plates from disengaging when the device is under stress, thereby improving the stability and safety of device disassembly. By setting a top plate and a bottom plate through the puller handle, an additional set of threaded mating structures is added. The double-threaded stress diversion design disperses the axial shear force to two independent load-bearing units, increasing the upper limit of plastic deformation of the device's threaded structure, making the device structure more stable, and reducing costs while ensuring structural stability.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A special disassembly tool for DTRO sealing sleeves includes a puller handle, a puller rod vertically arranged in the middle of the puller handle, a first puller side plate and a second puller side plate arranged below the puller handle, and a positioning ring sleeved on the outer side of the first and second puller side plates. The positioning ring, under its own weight, engages with the outer side of the first and second puller side plates, forming a radial displacement constraint mechanism with the first and second puller side plates to prevent the puller side plates from shifting outwards and disengaging during use. The puller handle includes a top plate and a bottom plate of the same diameter, connected by multiple connecting pieces, reducing material usage, lowering costs, reducing the weight of the device, and reducing the labor intensity of workers. A threaded hole is provided in the middle of the top plate and the bottom plate. Two sets of hinges are symmetrically arranged on the bottom plate, with a through-hole on the side of each hinge. The puller rod includes a bolt rod with a bolt head connected to its top. A lever fixing plate is provided in the upper middle part of the bolt rod, and a lever connecting hole is provided in the middle of the lever fixing plate. A horizontal lever is provided in the lever connecting hole, and the horizontal lever can move within the lever connecting hole. The operator can apply torque to the puller rod through the horizontal lever, and similarly, torque can also be applied to the puller rod through the bolt head using tools such as wrenches. These two rotation methods allow two operators to exert force simultaneously, solving the problem of the sealing sleeve being too tight with the central membrane column. The lower middle end of the bolt rod is threaded, and the bolt rod is helically engaged with the top plate and the bottom plate. The first puller side plate and the second puller side plate have the same structure. The second puller side plate includes a connecting plate and a snap-fit ​​meniscus. The snap-fit ​​meniscus is vertically arranged at the bottom end of the connecting plate. A hinge tongue is provided above the connecting plate, and a second hinge hole is provided on the side of the hinge tongue. The hinge component and the hinge tongue are engaged by a pin to form a hinge assembly.

[0007] Preferably, a sleeve is fixedly installed between the top plate and the bottom plate. The sleeve is coaxial with the top plate, and the height of the sleeve is equal to the distance between the top plate and the bottom plate. A through threaded hole is provided in the middle of the sleeve. The threaded hole in the middle of the sleeve, the threaded hole in the top plate, the threaded hole in the bottom plate, and the bolt rod are threaded together. The sleeve is fixedly installed with the top plate and the bottom plate, which increases the length of the threaded structure between the puller handle and the puller rod, so that the corresponding threaded structure can withstand greater force and improve the durability and structural strength of the device.

[0008] Preferably, a top rod buffer head is provided at the bottom of the bolt rod. When the device is in use, there is both pressure and rotational friction between the helical rod and the central membrane column. Excessive load will damage the central membrane column. The top rod buffer head can effectively protect the central membrane column.

[0009] Preferably, the horizontal lever includes a rod, a fixed ball fixed to one end of the rod, and a connecting ball threaded to the other end of the rod. With the above structure, the horizontal lever is detachable, can be installed when needed, and removed when not needed, and is easy to install.

[0010] Preferably, the snap-fit ​​meniscus is provided with stepped insertion ports at both ends. The snap-fit ​​meniscus and the snap-fit ​​meniscus below the first puller side plate cooperate to form a snap-fit ​​ring. The inner diameter of the snap-fit ​​ring is smaller than the diameter of the top plate and the bottom plate, and larger than the outer diameter of the sealing sleeve groove. The snap-fit ​​ring can be stably snapped into the sealing sleeve groove. The outer diameter of the snap-fit ​​ring is larger than the inner diameter of the positioning ring, ensuring that the positioning ring will not detach from the device and guaranteeing the stability of the displacement constraint mechanism.

[0011] Preferably, magnets are provided on the end faces of the stepped insertion ports at both ends of the snap-fit ​​meniscus, so that the two sets of puller side plates can be magnetically fixed to the sealing sleeve during device installation, reducing the difficulty of device installation and improving device installation efficiency.

[0012] Preferably, a rubber pad is provided on the inner side of the positioning ring, which increases the friction between the positioning ring and the first puller side plate and the second puller side plate, ensuring that the positioning ring does not undergo axial displacement during the use of the device, and effectively protecting the positioning ring, the first puller side plate and the second puller side plate from deformation and damage under large compressive loads.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model forms a radial displacement constraint mechanism by fitting positioning rings on the outer sides of the first and second puller side plates, preventing the puller side plates from disengaging when the device is under stress, thus improving the stability and safety of device disassembly; by setting the top and bottom plates through the puller handle, a set of threaded mating structures is added, and the double-threaded stress diversion design disperses the axial shear force to two independent load-bearing units, increasing the upper limit of plastic deformation of the device's threaded structure, making the device structure more stable, and reducing costs while ensuring structural stability.

[0015] 2. The connecting piece in the middle of the puller handle of this utility model reduces the amount of material used, lowers the cost, reduces the weight of the device, and reduces the labor intensity of the workers.

[0016] 3. By setting a bolt head and a horizontal lever, this utility model enables the device to have two ways of applying force. The operator can apply torque to the puller rod through the horizontal lever, and similarly, torque can also be applied to the puller rod through the bolt head using tools such as wrenches. Moreover, the two forces can be applied simultaneously, solving the problem of the sealing sleeve and the central membrane column being too tight.

[0017] 4. This utility model increases the length of the threaded structure between the puller handle and the puller rod by fixing a sleeve between the top plate and the bottom plate, so that the corresponding threaded structure can withstand greater force and improve the durability and structural strength of the device.

[0018] 5. By setting a top rod buffer head, this utility model can effectively protect the central membrane column when the device is in use. There is both pressure and rotational friction between the screw rod and the central membrane column. Excessive load will damage the central membrane column.

[0019] 6. The horizontal lever designed in this utility model has a detachable structure, which can be installed when needed and removed when not needed, and is easy to install, improving the flexibility of the device.

[0020] 7. The end faces of the stepped insertion ports at both ends of the snap-fit ​​meniscus in this invention are equipped with magnets. During device installation, the two sets of puller side plates can be magnetically fixed to the sealing sleeve, reducing the difficulty of device installation and improving installation efficiency.

[0021] 8. The positioning ring of this utility model is provided with a rubber pad on the inner side, which increases the friction between the positioning ring and the first puller side plate and the second puller side plate, ensuring that the positioning ring does not undergo axial displacement during the use of the device, and effectively protecting the positioning ring, the first puller side plate and the second puller side plate from deformation and damage under large compressive loads. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the device disclosed in this utility model;

[0023] Figure 2 This is a schematic diagram of the puller rod structure of the device disclosed in this utility model;

[0024] Figure 3 This is a schematic diagram of the puller handle structure of the device disclosed in this utility model;

[0025] Figure 4 This is a schematic diagram of the second puller side plate structure of the device disclosed in this utility model;

[0026] Figure 5 This is a schematic diagram of the horizontal lever structure of the device disclosed in this utility model.

[0027] The components are as follows: 1. Puller rod; 11. Bolt head; 12. Bolt rod; 13. Lever fixing plate; 14. Puller rod buffer head; 15. Lever connecting hole; 2. Pin; 3. First puller side plate; 4. Positioning ring; 5. Puller handle; 51. Top plate; 52. Connecting piece; 53. Base plate; 54. Top plate threaded hole; 55. Base plate threaded hole; 56. Hinge; 57. First hinge hole; 6. Second puller side plate; 61. Connecting plate; 62. Hinge tongue; 63. Second hinge hole; 64. Snap-fit ​​meniscus; 65. Magnet; 7. Horizontal lever; 71. Fixed ball; 72. Rod; 73. Connecting ball. Detailed Implementation

[0028] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] like Figures 1-5 As shown, a special tool for removing DTRO sealing sleeves includes a puller handle 5, a puller rod 1 vertically arranged in the middle of the puller handle 5, a first puller side plate 3 and a second puller side plate 6 arranged below the puller handle 5, and a positioning ring 4 sleeved on the outer side of the first puller side plate 3 and the second puller side plate 6. The positioning ring 4 is engaged with the outer side of the first puller side plate 3 and the second puller side plate 6 under its own weight, and forms a radial displacement constraint mechanism with the first puller side plate 3 and the second puller side plate 6. During the use of the device... To prevent the puller side plate from shifting outward and causing the risk of disengagement, the puller handle 5 includes a top plate 51 and a bottom plate 53 of the same diameter. Multiple connecting pieces 52 are connected between the top plate 51 and the bottom plate 53, which reduces the amount of material used, lowers the cost, reduces the weight of the device, and reduces the labor intensity of the workers. The top plate 51 is provided with a top plate threaded hole 54 in the middle, and the bottom plate 53 is provided with a bottom plate threaded hole 55 in the middle. Two sets of hinges 56 are symmetrically arranged on the bottom plate 53, and the hinges 56 are provided with a through first hinge hole 57 on the side.

[0030] The puller rod 1 includes a bolt rod 12, with a bolt head 11 connected to the top of the bolt rod 12. A lever fixing plate 13 is provided in the upper part of the bolt rod 12, and a lever connecting hole 15 is provided in the middle of the lever fixing plate 13. A horizontal lever 7 is provided in the lever connecting hole 15, and the horizontal lever 7 can move within the lever connecting hole 15. The operator can apply torque to the puller rod 1 through the horizontal lever 7. Similarly, the operator can also apply torque to the puller rod 1 through the bolt head 11 using tools such as a wrench. The two rotation methods allow two operators to exert force simultaneously, solving the problem of the sealing sleeve being too tight with the central membrane column. The lower end of the bolt rod 12 is provided with threads, and the bolt rod 12 is screwed into the top plate 51 and the bottom plate 53.

[0031] The first puller side plate 3 and the second puller side plate 6 have the same structure. The second puller side plate 6 includes a connecting plate 61 and a snap-fit ​​meniscus 64. The snap-fit ​​meniscus 64 is vertically arranged at the bottom end of the connecting plate 61. A hinge tongue 62 is provided above the connecting plate 61. A second hinge hole 63 is provided on the side of the hinge tongue 62. The hinge member 56 and the hinge tongue 62 cooperate with the pin 2 to form a hinge assembly.

[0032] like Figures 1-3 As shown, a sleeve is provided between the top plate 51 and the bottom plate 53. The sleeve is coaxial with the top plate 51, and the height of the sleeve is equal to the distance between the top plate 51 and the bottom plate 53. A through threaded hole is provided in the middle of the sleeve. The threaded hole in the middle of the sleeve, the threaded hole 54 in the top plate, the threaded hole 55 in the bottom plate, and the bolt rod 12 are threaded together. The sleeve is fixedly set with the top plate 51 and the bottom plate 53, which increases the length of the threaded structure between the puller handle 5 and the puller rod 1, so that the corresponding threaded structure can withstand greater force and improve the durability and structural strength of the device.

[0033] like Figure 1 and Figure 2 As shown, a top rod buffer head 14 is provided at the bottom of the bolt rod 12. When the device is in use, there is both pressure and rotational friction between the bolt rod 12 and the central membrane column. Excessive load will damage the central membrane column. The top rod buffer head 14 can effectively protect the central membrane column.

[0034] like Figure 1 and Figure 5 As shown, the horizontal lever 7 includes a rod 72, a fixed ball 71 fixed to one end of the rod 72, and a connecting ball 73 connected to the other end of the rod 72 by a thread. With the above structure, the horizontal lever 7 is detachable, can be installed when needed, and removed when not needed, and is easy to install.

[0035] like Figure 1 , Figure 3 and Figure 4 As shown, the snap-fit ​​meniscus 64 has stepped insertion ports at both ends. The snap-fit ​​meniscus 64 and the snap-fit ​​meniscus 64 below the first puller side plate 3 cooperate to form a snap-fit ​​ring. The inner diameter of the snap-fit ​​ring is smaller than the diameter of the top plate 51 and the bottom plate 53, and larger than the outer diameter of the sealing sleeve groove. The snap-fit ​​ring can be stably snapped into the sealing sleeve groove. The outer diameter of the snap-fit ​​ring is larger than the inner diameter of the positioning ring 4, ensuring that the positioning ring 4 will not detach from the device and ensuring the stability of the displacement constraint mechanism.

[0036] like Figure 4 As shown, magnets 65 are provided on the end faces of the stepped insertion ports at both ends of the snap-fit ​​meniscus 64. During device installation, the two sets of puller side plates can be magnetically fixed to the sealing sleeve, reducing the difficulty of device installation and improving device installation efficiency.

[0037] The inner side of the positioning ring 4 is provided with a rubber pad, which increases the friction between the positioning ring 4 and the first puller side plate 3 and the second puller side plate 6, ensuring that the positioning ring 4 does not undergo axial displacement during the use of the device, and effectively protecting the positioning ring 4, the first puller side plate 3 and the second puller side plate 6 from deformation and damage under large compressive loads.

[0038] This utility model discloses the method of using the device:

[0039] 1. First, clean the impurities on the surface of the sealing sleeve and the central membrane column. Rotate the puller rod 1 to the top, remove the positioning ring 4, and install the device on the sealing sleeve.

[0040] 2. Slide the positioning ring 4 from top to bottom onto the sides of the first puller side plate 3 and the second puller side plate 6, and manually press down on the positioning ring 4 to ensure that the positioning ring 4 is securely installed;

[0041] 3. Based on the surrounding environment and the habits of the staff, choose either bolt-driven tightening or horizontal lever-driven tightening.

[0042] 4. Rotate puller rod 1 to move it downwards. After the push rod buffer head 14 below puller rod 1 contacts the top surface of the central membrane column, continue to rotate puller rod 1 until the sealing sleeve disengages.

[0043] It should be noted that when the sealing sleeve is in too tight contact with the central membrane column, one person cannot rotate and unload it. Two people can apply force simultaneously by using the bolt head or the horizontal lever to complete the disassembly of the sealing sleeve.

[0044] In the description of this utility model, the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for describing this utility model and do not require that this utility model be constructed or operated in a specific orientation, and therefore should not be construed as limiting this utility model. The terms "connected" and "linked" in this utility model should be interpreted broadly. For example, they can refer to a connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0045] The above description represents the preferred operating mode of this utility model. The specific operating mode description is only for better understanding the concept of this utility model. For those skilled in the art, several improvements or equivalent substitutions can be made based on the principles of this utility model, and these improvements or equivalent substitutions are also considered to fall within the protection scope of this utility model.

Claims

1. A DTRO seal sleeve special dismounting tool, comprising a draw bar handle (5), a draw bar top rod (1) vertically arranged in the middle of the draw bar handle (5), a first draw bar side plate (3) and a second draw bar side plate (6) arranged below the draw bar handle (5), characterized in that: It also includes the first LAMA side plate (3) and the second LAMA side plate (6) outside sleeve positioning ring (4); the LAMA rotating handle (5) includes the top plate (51) and the bottom plate (53) with the same diameter, a plurality of connecting plates (52) are connected between the top plate (51) and the bottom plate (53), a top plate threaded hole (54) is arranged in the middle of the top plate (51), a bottom plate threaded hole (55) is arranged in the middle of the bottom plate (53), two sets of hinge pieces (56) are symmetrically arranged on the bottom plate (53), and a first hinge hole (57) is arranged on the side of the hinge piece (56); The LAMA top rod (1) includes a bolt rod (12), a bolt head (11) is connected to the top end of the bolt rod (12), a lever fixing plate (13) is arranged in the upper part of the bolt rod (12), a lever connecting hole (15) is arranged in the middle of the lever fixing plate (13), a horizontal lever (7) is arranged in the lever connecting hole (15), and threads are arranged in the lower end of the bolt rod (12); the bolt rod (12) is screwed with the top plate (51) and the bottom plate (53); The first LAMA side plate (3) and the second LAMA side plate (6) are the same in structure, the second LAMA side plate (6) includes a connecting plate (61) and a clamping half moon plate (64), the clamping half moon plate (64) is vertically arranged at the bottom end of the connecting plate (61), a hinge tongue (62) is arranged above the connecting plate (61), a second hinge hole (63) is arranged on the side of the hinge tongue (62), and the hinge piece (56) and the hinge tongue (62) are matched to form a hinge assembly through a pin shaft (2).

2. The DTRO seal sleeve special dismounting tool according to claim 1, characterized in that: A sleeve is arranged between the top plate (51) and the bottom plate (53), the sleeve is coaxial with the top plate (51), the height of the sleeve is equal to the distance between the top plate (51) and the bottom plate (53), a through threaded hole is arranged in the middle of the sleeve, and the threaded hole in the middle of the sleeve, the top plate threaded hole (54), the bottom plate threaded hole (55) and the bolt rod (12) are screwed.

3. The DTRO seal sleeve special dismounting tool according to claim 1, characterized in that: The bottom of the bolt rod (12) is provided with a top rod buffer head (14).

4. The DTRO seal sleeve special dismounting tool according to claim 1, characterized in that: The horizontal lever (7) includes a rod piece (72), a fixed ball (71) fixed at one end of the rod piece (72), and a connecting ball (73) connected at the other end of the rod piece (72) through threads.

5. The DTRO seal sleeve special dismounting tool according to claim 1, characterized in that: The clamping half moon plate (64) is arranged in the form of a stepped socket at both ends, and the clamping half moon plate (64) and the clamping half moon plate below the first LAMA side plate (3) are matched to form a clamping circular ring, the inner diameter of the clamping circular ring is smaller than the diameter of the top plate (51) and the bottom plate (53), and larger than the outer diameter of the sealing sleeve groove, and the outer diameter of the clamping circular ring is larger than the inner diameter of the positioning ring (4).

6. The DTRO seal sleeve special dismounting tool according to claim 5, characterized in that: The end face of the stepped socket at both ends of the clamping half moon plate (64) is provided with a magnet (65).

7. The DTRO seal sleeve special dismounting tool according to claim 1, characterized in that: A rubber pad is arranged on the side of the inner ring of the positioning ring (4).

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