A special dismounting device for MD dryer safety valve

Abstract

The utility model belongs to special equipment dismantling technical field, concretely relates to a kind of MD drier safety valve special dismantling device, including driving tool and sleeve body, the driving tool is provided with driving connector, one end of the sleeve body is provided with connecting portion, the connecting portion is provided with connecting slot, the connecting slot is inserted with the driving connector;The other end inner wall of the sleeve body is provided with fixed part docking portion, the fixed part docking portion can be sleeved on safety valve;The outer wall of one end of the sleeve body close to fixed part docking portion is provided with avoiding portion, the avoiding portion is formed with avoiding space on the periphery of safety valve when the fixed part docking portion is sleeved safety valve, to make the driving of the driving tool to the sleeve body can dismantle safety valve.In the application, the installation position of safety valve is uniquely designed to avoid, which can save time and effort, non-destructively dismantle safety valve, and has high practicability.

Description

Technical Field

[0001] This utility model belongs to the field of special equipment disassembly technology, specifically relating to a special disassembly device for the safety valve of an MD dryer. Background Technology

[0002] The Atlas Copco oil-free screw air compressors in the cigarette factory's power workshop are equipped with MD dryers to provide the necessary high-pressure gas for the tobacco processing and packaging workshops. Each MD dryer is fitted with a safety valve of the corresponding specification. The core function of the safety valve is to prevent overpressure risks in the dryer, and it requires regular inspection and maintenance. To ensure reliable operation of the safety valve, its specifications and model must match the rated pressure and media type of the MD dryer during installation and selection. Regular calibration: The safety valve must be calibrated regularly by professional personnel (generally at least once a year) through hydrostatic or pneumatic tests to adjust the opening pressure (set pressure) and ensure accurate operation at the set value.

[0003] However, the safety valve installed on the MD dryer (or MD type rotary drum dryer) has two small valves next to its installation position, making it impossible to directly remove the safety valve with a regular wrench. Forcibly removing it would damage the valve body structure and safety accessories, delaying the inspection. Utility Model Content

[0004] The purpose of this invention is to provide a dedicated disassembly device for the safety valve of an MD dryer. This device is adaptable to the installation location of the safety valve, enabling safe and efficient disassembly without damaging the valve body structure and safety accessories, thus ensuring the safety valve can be sent for periodic inspection. This solves the problem mentioned in the background art that existing tools cannot efficiently and non-destructively disassemble the safety valve for periodic inspection.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0006] A dedicated disassembly device for a safety valve in an MD dryer includes a driving tool and a sleeve body. The driving tool is equipped with a driving connector. One end of the sleeve body is equipped with a connecting portion and a connecting slot, which is inserted into the driving connector. The inner wall of the other end of the sleeve body is equipped with a fixing part that can be fitted onto the safety valve. The outer wall of the end of the sleeve body near the fixing part is equipped with a clearance portion, which forms a clearance space around the safety valve when the fixing part is fitted onto the safety valve, so that the driving tool can disassemble the safety valve by driving the sleeve body.

[0007] In this invention, when the safety valve (i.e., the safety valve) installed on the MD dryer needs to be calibrated, first, the sleeve body is slipped off the top of the safety valve, and the mating part of the fixing part is aligned with the nut on the safety valve; then, a driving tool is held and the driving connector of the driving tool is inserted into the connecting slot of the sleeve body, and the sleeve body is rotated to unscrew the nut of the safety valve; the safety valve is then removed for inspection. During the disassembly process, due to the unique design of the sleeve body, a clearance part is provided; this allows the sleeve body to slip off and align with the mating part of the fixing part and the nut on the safety valve; furthermore, during the rotation of the sleeve body, there is clearance space for the two small valves on the safety valve side; the small valves do not affect the unscrewing of the nut, nor do they affect the screwing in of the nut, that is, they do not affect the installation of the calibrated safety valve, making disassembly and reassembly convenient; the structure of the safety valve and the safety accessories will not be damaged during the disassembly and reassembly process.

[0008] Furthermore, the driving tool is a wrench, and the driving connector is fixedly disposed in the middle of the wrench; the connecting slot is a square slot, and the shape of the driving connector is adapted to the square slot.

[0009] This device uses a purely mechanical structure, which is low in cost and highly reliable. It is convenient and labor-saving to disassemble and inspect the safety valve without causing damage during use.

[0010] Furthermore, the fastener mating part includes a non-circular mating hole and a receiving cavity that are interconnected. The non-circular mating hole is located on the inner wall of the bottom end of the sleeve body, and the receiving cavity is located in the middle section of the sleeve body.

[0011] In this way, the safety valve nut can be easily connected via a non-circular mating hole, while the receiving cavity can accommodate the main body of the safety valve; thus, the sleeve body can be smoothly fitted together. The non-circular mating hole has an internal hexagonal hole.

[0012] Furthermore, the clearance portion is an annular notch formed on the outer wall of one end of the sleeve body near the mating portion of the fixing member; the annular notch completely penetrates the bottom end of the sleeve body;

[0013] The annular notch smoothly transitions into the outer wall of the sleeve body. Thus, the annular notch is the thinned outer end of the sleeve, which can avoid the small valve on the safety valve side.

[0014] Furthermore, the connecting part is also provided with an annular groove, on which two opposing through holes are formed, the through holes communicating with the connecting slot. A hanging rope can be threaded through the through holes for placement during downtime, avoiding the need for excessive space during placement.

[0015] Furthermore, a rotating ring is fitted inside the annular groove, and a locking block is slidably installed inside the through hole. The locking block is connected to the rotating ring in a driving manner. The bottom wall of the inner end of the locking block is set as a plane, and the top wall is set as an inclined plane. A locking groove is opened on the wall surface corresponding to the through hole of the drive connector. The locking block and the drive connector are magnetically attracted to each other. When the drive connector is inserted into the connection slot, the locking block extends into the locking groove. Moreover, the locking block can be pulled out of the locking groove by the rotation of the rotating ring. In this way, by locking the drive connector, after the safety valve is disassembled, the sleeve body can be pulled out together with a hand wrench, which simplifies the disassembly and assembly steps and improves efficiency.

[0016] The utility model adopting the above technical solution has the following advantages:

[0017] In this application, by creating a clearance portion on the bottom outer wall of the sleeve body, the disassembly device is made suitable for disassembling the safety valve of the MD dryer. This facilitates disassembly, ensures high reliability of the mechanical structure, and saves time and effort for maintenance personnel. Furthermore, the safety valve, as well as safety accessories such as nuts and small valves, are not damaged during disassembly. Attached Figure Description

[0018] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0019] Figure 1 This is one of the structural schematic diagrams of an embodiment of a special disassembly device for a safety valve of an MD dryer according to this utility model;

[0020] Figure 2 This is the second structural schematic diagram of an embodiment of the special disassembly device for the safety valve of an MD dryer according to this utility model;

[0021] Figure 3 This is the third structural schematic diagram of an embodiment of the special disassembly device for the safety valve of an MD dryer according to this utility model;

[0022] Figure 4 This is a right view of an embodiment of the special disassembly device for the safety valve of an MD dryer according to this utility model;

[0023] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure along the AA direction;

[0024] Figure 6 This is a partial cross-sectional structural schematic diagram of another embodiment of the special disassembly device for the safety valve of the MD dryer according to this utility model;

[0025] The symbols for the main components are explained below:

[0026] 101. Wrench; 102. Sleeve body; 103. Clearance part; 104. Drive connector; 105. Connecting part; 1051. Connecting slot; 1052. Through hole; 1053. Rotating ring; 1054. Locking block; 1055. Locking groove; 1056. Flexible part; 106. Fixing part mating part; 107. Receiving cavity. Detailed Implementation

[0027] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that similar or identical parts are referred to by the same reference numerals in the drawings or description. Implementations not shown or described in the drawings are forms known to those skilled in the art. Furthermore, directional terms mentioned in the embodiments, such as "up," "down," "top," "bottom," "left," "right," "front," and "back," are only for reference to the directions in the drawings and are not intended to limit the scope of protection of the present invention.

[0028] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] like Figures 1 to 5 As shown, in one embodiment, a special disassembly device for a safety valve of an MD dryer includes a driving tool and a sleeve body 102. The driving tool is provided with a driving connector 104. One end of the sleeve body 102 is provided with a connecting part 105, and the connecting part 105 is provided with a connecting slot 1051, which is inserted into the driving connector 104. The inner wall of the other end of the sleeve body 102 is provided with a fixing part docking part 106, which can be sleeved on the safety valve. The outer wall of the end of the sleeve body 102 near the fixing part docking part 106 is provided with a clearance part 103. When the fixing part docking part 106 is sleeved on the safety valve, the clearance part 103 forms a clearance space around the safety valve, so that the driving tool can disassemble the safety valve by driving the sleeve body 102.

[0030] In this embodiment, the driving tool can be an electric wrench, and the driving connector 104 can be a square plug that plugs into the driving output end of the electric wrench. Alternatively, depending on the actual situation, the driving tool can be a wrench 101, with the driving connector 104 welded to the middle sidewall of the wrench 101. The connecting slot 1051 is a square groove, and the driving connector 104 matches the shape of the square groove; both are square. In this embodiment, the fixing part mating portion 106 includes a non-circular mating hole and a receiving cavity 107. The non-circular mating hole is located on the bottom inner wall of the sleeve body 102, and the receiving cavity 107 is located in the middle section of the sleeve body 102. In practice, the non-circular mating hole can be an internal hexagonal hole, which perfectly matches the nut on the safety valve.

[0031] When the safety valve needs to be disassembled for verification, first slide the sleeve body 102 off the top of the safety valve and align the fixing part 106 with the nut on the safety valve. Then, holding the wrench 101, insert the drive connector 104 into the connection slot 1051 of the sleeve body 102, and rotate the sleeve body 102 to unscrew the nut of the safety valve. This allows for quick and easy removal of the safety valve. During disassembly, the sleeve body 102 has a specially designed clearance part 103, allowing it to slide down and align with the fixing part 106 and the nut on the safety valve. Furthermore, the clearance space prevents interference with the two small valves on the safety valve side during rotation of the sleeve body 102. Disassembly is convenient as it avoids component collisions or damage.

[0032] In this embodiment, the clearance portion 103 is an annular notch formed on the outer wall of the bottom end of the sleeve body 102; the annular notch completely penetrates the bottom end of the sleeve body 102; the annular notch smoothly transitions to the outer wall of the sleeve body 102; in fact, the connection between the annular notch and the outer wall of the sleeve body 102 can also be an inclined transition. In fact, with... Figure 4 For example, the annular notch allows the sleeve body 102 to be smoothly fitted onto the bottom of the safety valve; and, during the rotation of the sleeve body 102, there is no interference with the rotation stroke.

[0033] In this embodiment, if the sleeve body is made of 304 stainless steel, the thickness of the annular notch is one-third to two-thirds of the thickness of the sleeve body 102. In practice, if the thickness of the sleeve body 102 is 9mm, the end of the sleeve body 102 can be thinned by 3mm, 5mm or 6mm as needed; the choice can be flexible while ensuring the structural strength of the sleeve body 102 and avoiding the two small valves on the side of the safety valve.

[0034] In this embodiment, the connecting part 105 is also provided with an annular groove, on which two opposing through holes 1052 are formed, and the through holes 1052 are connected to the connecting slot 1051. In fact, in this embodiment, a spring plunger can be installed in the through hole 1052 as needed, and a limiting groove is formed on the wall surface of the drive connector 104 corresponding to the through hole 1052; when the drive connector 104 is inserted into the connecting slot 1051, the spring plunger is embedded in the limiting groove. The limiting groove is semi-circular; the spring plunger can provide damping, but will not jam the wrench 101.

[0035] In fact, such as Figure 6 As shown, in this embodiment, a rotating ring 1053 can be fitted inside the annular groove as needed, and a locking block 1054 is slidably installed inside the through hole 1052. The locking block 1054 is connected to the rotating ring 1053 in a transmission manner. The bottom wall of the inner end of the locking block 1054 is set as a plane and the top wall is set as an inclined surface. The drive connector 104 has a locking groove 1055 on the wall surface corresponding to the through hole 1052. The locking block 1054 and the drive connector 104 are magnetically attracted to each other. When the drive connector 104 is inserted into the connection slot 1051, the locking block 1054 extends into the locking groove 1055. Furthermore, the locking block 1054 can be pulled out of the locking groove 1055 by the rotation of the rotating ring 1053.

[0036] The locking block 1054 has a magnetic side facing the connecting slot 1051, which can be achieved by fixing a magnet. The connection between the locking block 1054 and the rotating ring 1053 can be achieved by a steel wire, which can be used as a flexible part 1056. The drive connector 104 is made of magnetically attracted alloy steel; based on magnetism, when the drive connector 104 is inserted into the connecting slot 1051, the locking block 1054 is first pushed outward by its inclined surface, and then affected by the magnetic reaction force, it extends into the locking groove 1055, locking and limiting the wrench 101; afterwards, after the safety valve is unloaded, the sleeve body 102 can be removed together with the wrench 101, which is convenient and quick, and avoids the sleeve body 102 accidentally coming out and damaging the dryer, making it highly practical.

[0037] In addition, when it is necessary to separate the wrench 101 from the socket body 102, simply rotate the rotating ring 1053 in any direction of rotation, and pull the locking block 1054 out of the locking groove 1055 through the flexible part 1056 to separate the wrench 101, which is convenient to operate.

[0038] The above provides a detailed description of a special disassembly device for the safety valve of an MD dryer provided by this utility model. The specific embodiments are described only to help understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A special disassembly device for the safety valve of an MD dryer, comprising a driving tool and a sleeve body (102), characterized in that, The driving tool is provided with a driving connector (104), and one end of the sleeve body (102) is provided with a connecting part (105). The connecting part (105) is provided with a connecting slot (1051), and the connecting slot (1051) is inserted into the driving connector (104). The inner wall of the other end of the sleeve body (102) is provided with a fixing part docking part (106), which can be sleeved on the safety valve. The outer wall of the sleeve body (102) near the fixing part docking part (106) is provided with a clearance part (103). When the fixing part docking part (106) is sleeved on the safety valve, the clearance part (103) forms a clearance space around the safety valve, so that the driving tool can disassemble the safety valve by driving the sleeve body (102).

2. The special disassembly device for the safety valve of the MD dryer according to claim 1, characterized in that, The driving tool is a wrench (101), and the driving connector (104) is fixedly disposed in the middle of the wrench (101); the connecting slot (1051) is a square slot, and the driving connector (104) is adapted to the shape of the square slot.

3. The special disassembly device for the safety valve of the MD dryer according to claim 1, characterized in that, The fastener docking part (106) includes a non-circular docking hole and a receiving cavity (107) that are interconnected. The non-circular docking hole is located on the inner wall of the bottom end of the sleeve body (102), and the receiving cavity (107) is located in the middle section of the sleeve body (102).

4. The special disassembly device for the safety valve of the MD dryer according to claim 1, characterized in that, The clearance portion (103) is an annular notch formed on the outer wall of one end of the sleeve body (102) near the fastener docking portion (106); the annular notch completely penetrates the bottom end of the sleeve body (102).

5. The special disassembly device for the safety valve of the MD dryer according to claim 4, characterized in that, The annular notch smoothly transitions to the outer wall of the sleeve body (102).

6. The special disassembly device for the safety valve of the MD dryer according to claim 1, characterized in that, The connecting part (105) is also provided with an annular groove, and two opposing through holes (1052) are opened on the annular groove. The through holes (1052) are connected to the connecting slot (1051).

7. The special disassembly device for the safety valve of the MD dryer according to claim 6, characterized in that, A rotating ring (1053) is fitted inside the annular groove, and a locking block (1054) is slidably installed inside the through hole (1052). The locking block (1054) is connected to the rotating ring (1053) in a transmission manner. The bottom wall of the inner end of the locking block (1054) is set as a plane, and the top wall is set as an inclined surface. The drive connector (104) has a locking groove (1055) on the wall surface corresponding to the through hole (1052). The locking block (1054) and the drive connector (104) are magnetically attracted to each other. When the drive connector (104) is inserted into the connection slot (1051), the locking block (1054) extends into the locking groove (1055). Furthermore, the locking block (1054) can be pulled out of the locking groove (1055) by the rotation of the rotating ring (1053).

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