Quickly-assembled diaphragm coupling

Abstract

The utility model discloses a quick-assembly diaphragm coupling, which particularly relates to the technical field of diaphragm couplings, and comprises a main coupling, two auxiliary couplings and two diaphragms arranged between the main coupling and the two auxiliary couplings, and sealing rings are arranged at the joints of the main coupling and the auxiliary couplings. The sealing ring comprises a first sealing cover and a second sealing cover, and two connecting blocks are fixedly installed on one side of the outer surface of the second sealing cover. In actual work, the first sealing cover and the second sealing cover cover the connecting position of the main coupler and the auxiliary coupler, the diaphragm located in the connecting position of the main coupler and the auxiliary coupler is covered, the threaded rod is rotated, the two fixing plates are made to be close to each other, and therefore the diaphragm can be quickly assembled. The connecting block penetrating through the assembling hole is clamped and fixed to complete assembling of the first sealing cover and the second sealing cover, so that the membrane is conveniently protected, and the membrane is effectively prevented from being rusted due to long-time exposure in the external environment.

Description

Technical Field

[0001] The utility model relates to the technical field of diaphragm couplings, in particular to a quick-install diaphragm coupling. Background Art

[0002] The diaphragm coupling relies on the elastic deformation of the diaphragm to compensate for the relative displacement of the two connected shafts. It is a high-performance metal strong component flexible coupling that does not require lubrication, has a compact structure, high strength, long service life, no rotational clearance, is not affected by temperature and oil pollution, and is acid-resistant, alkali-resistant and corrosion-resistant. It is suitable for shaft transmission in high-temperature, high-speed and corrosive media working environments.

[0003] After searching, for example, the utility model with announcement number CN220687884U discloses a flange diaphragm coupling, which includes two symmetrically arranged shaft sleeves, a flange plate is added to one end of the shaft sleeves, the two shaft sleeves are correspondingly spaced, and a diaphragm is added at the connection between the two shaft sleeves. After the diaphragm coupling of this utility model is installed, its diaphragm is directly exposed to the external environment. As the use time increases, the diaphragm is easily corroded, which in turn affects the normal use of the diaphragm coupling. However, this utility model is not convenient for protecting the diaphragm. Therefore, in order to solve the above defects, the inventor proposes a quick-install diaphragm coupling. Utility Model Content

[0004] To this end, the utility model provides a quick-install diaphragm coupling to solve the problem that the diaphragm coupling in the prior art is inconvenient for protecting the diaphragm.

[0005] In order to achieve the above objectives, the present invention provides the following technical solutions:

[0006] A quick-install diaphragm coupling comprises a main coupling, two secondary couplings, and two diaphragms disposed between the main coupling and the two secondary couplings. Two limit rods are fixedly mounted on both ends of the main coupling. Two limit grooves are formed on one end of the secondary coupling close to the diaphragms. Two limit holes are formed on one side of the outer surface of the diaphragms to facilitate quick assembly of the diaphragm coupling.

[0007] The connecting part of the main shaft coupling and the auxiliary shaft coupling is provided with a sealing ring, the sealing ring comprises a first sealing cover and a second sealing cover, two connecting blocks are fixedly installed on one side of the outer surface of the second sealing cover, and fixing grooves are formed on the left and right sides of the outer surfaces of the two connecting blocks, two moving grooves are formed on the left and right sides of the outer surface of the first sealing cover, a threaded rod is rotatably connected to one side of the inner part of the two moving grooves, and a sliding rod is fixedly installed on the other side of the inner part of the two moving grooves, two moving blocks are threadedly connected to the outer surface of the threaded rod, and the outer surface of the sliding rod is slidably connected with two moving blocks, two fixing plates are fixedly installed on one side of the four moving blocks respectively, and assembly holes are formed on the two sides of the first sealing cover.

[0008] Preferably, the inner part of the first sealing cover and the second sealing cover is provided with a rubber sleeve, and a rubber pad is attached to one side of the outer surface of the two rubber sleeves.

[0009] Preferably, the outer surface of the threaded rod is provided with two opposite threads, and two handles are rotatably connected to one side of the outer surface of the first sealing cover, and the two handles are fixedly connected with the two threaded rods respectively.

[0010] Preferably, a plurality of first hidden grooves are formed on the outer surface of the main shaft coupling away from the diaphragm, and a connecting hole is formed in the inner part of the first hidden groove, a plurality of fastening holes are formed on one side of the outer surface of the diaphragm, a plurality of second hidden grooves are formed on the outer surface of the auxiliary shaft coupling away from the diaphragm, and a mounting hole is formed in the inner part of the second hidden groove.

[0011] Preferably, three insertion grooves of different sizes are formed in the inner part of the auxiliary shaft coupling, and three fastening bolts are threadedly connected to the upper and lower sides of the outer surface of the auxiliary shaft coupling.

[0012] Preferably, the size of the mounting hole is the same as that of the connecting hole.

[0013] The utility model has the advantages of:

[0014] The utility model discloses a quick -wearing type diaphragm coupling, through setting up sealing ring, in actual work, the first sealing cover and the second sealing cover cover the connecting part of main shaft coupling and auxiliary shaft coupling, and make two connecting blocks pass through two assembly holes, to cover the diaphragm in the connecting part of main shaft coupling and auxiliary shaft coupling inside, and rotate threaded rod, make two fixed plates approach each other, to insert two fixed slots, to hold fixedly the connecting block passing through assembly hole, to complete the assembly of first sealing cover and second sealing cover, thereby convenient to the protection of diaphragm, effectively avoid the rust of diaphragm because of long -term exposure in outside environment. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only exemplary, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0016] The structures, proportions, sizes, etc. disclosed in this specification are intended only to complement the contents disclosed in the specification and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in sizes that do not affect the efficacy and objectives of the present invention shall still fall within the scope of the technical contents disclosed in the present invention.

[0017] Figure 1 This is the overall structural diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the sealing ring structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the rubber sleeve structure of the present utility model;

[0020] Figure 4 This is a schematic diagram of the installation structure of the main coupling and the auxiliary coupling of the utility model;

[0021] Figure 5 This is a schematic structural diagram of the secondary coupling of the present utility model.

[0022] In the figure: 1. Main coupling; 2. Secondary coupling; 3. Sealing ring; 4. Diaphragm; 301. First sealing cover; 302. Second sealing cover; 303. Connecting block; 304. Fixed groove; 305. Threaded rod; 306. Sliding rod; 307. Moving block; 308. Fixed plate; 309. Moving groove; 310. Assembly hole; 3011. Rubber sleeve; 3012. Adhesive sticker; 201. Mounting hole; 202. Connecting hole; 203. First hidden groove; 204. Fastening hole; 205. Limiting groove; 206. Limiting hole; 207. Limiting rod; 208. Second hidden groove; 2021. Slot; 2022. Fastening bolt. DETAILED DESCRIPTION

[0023] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can readily understand the other advantages and benefits of the present invention from the contents disclosed in this specification. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0024] The utility model discloses a quick-install diaphragm coupling, such as Figures 1-5 As shown, it includes a main coupling 1, two secondary couplings 2 and two diaphragms 4 arranged between the main coupling 1 and the two secondary couplings 2. Two limit rods 207 are fixedly installed at both ends of the main coupling 1. Two limit grooves 205 are provided at one end of the secondary coupling 2 close to the diaphragm 4, and two limit holes 206 are provided on one side of the outer surface of the diaphragm 4 to facilitate quick assembly of the diaphragm coupling. When installing the main coupling 1, the secondary coupling 2 and the diaphragm 4, it is only necessary to put the diaphragm 4 on the limit rod 207 through the limit hole 206 and insert the limit rod 207 into the limit groove 205, so that the multiple openings on the main coupling 1, the secondary coupling 2 and the diaphragm 4 can be overlapped. There is no need for the staff to overlap the openings of the main coupling 1, the secondary coupling 2 and the diaphragm 4 one by one during installation, which effectively reduces the time for position correction during installation and speeds up the installation.

[0025] A sealing ring 3 is provided at the connection between the main coupling 1 and the auxiliary coupling 2. The sealing ring 3 covers the connection between the main coupling 1, the auxiliary coupling 2 and the diaphragm 4 to prevent the diaphragm 4 from being directly exposed to the external environment and rusting.

[0026] The sealing ring 3 includes a first sealing cover 301 and a second sealing cover 302 . Two connecting blocks 303 are fixedly mounted on one side of the outer surface of the second sealing cover 302 . The outer surfaces of the two connecting blocks 303 are both provided with fixing grooves 304 on the left and right sides.

[0027] Two movable grooves 309 are provided on both sides of the outer surface of the first sealing cover 301, and a threaded rod 305 is rotatably connected to one side of the two movable grooves 309, and a sliding rod 306 is fixedly installed on the other side of the two movable grooves 309. The outer surface of the threaded rod 305 is threadedly connected to two movable blocks 307, and the outer surface of the sliding rod 306 is slidably connected to the two movable blocks 307. Two fixed plates 308 are fixedly installed on one side of the four movable blocks 307. When the threaded rod 305 is rotated, the four movable blocks 307 can drive the two fixed plates 308 to move. The first sealing cover 301 is provided with assembly holes 310 on both sides of the fixed plate 308.

[0028] The outer surface of the threaded rod 305 is provided with two opposite threads. Two rotating handles are rotatably connected to one side of the outer surface of the first sealing cover 301, and the two rotating handles are fixedly connected to the two threaded rods 305 respectively. When the first sealing cover 301 and the second sealing cover 302 are assembled and installed, the connecting block 303 will pass through the assembly hole 310, and then the rotating handle is rotated to drive the threaded rod 305 to rotate, so that the two fixing plates 308 approach each other until the two fixing plates 308 are inserted into the fixing groove 304, thereby completing the assembly of the first sealing cover 301 and the second sealing cover 302.

[0029] The first sealing cover 301 and the second sealing cover 302 are both provided with rubber sleeves 3011. One side of the outer surface of the two rubber sleeves 3011 is adhered with adhesive tape 3012, and the two adhesive tapes 3012 are adhered to the inner walls of the first sealing cover 301 and the second sealing cover 302 respectively. When the first sealing cover 301 and the second sealing cover 302 cover the connection between the main coupling 1, the secondary coupling 2 and the diaphragm 4, the rubber sleeves 3011 can enhance the sealing effect of the first sealing cover 301 and the second sealing cover 302.

[0030] A plurality of first hidden grooves 203 are provided on the side of the outer surface of the main coupling 1 away from the diaphragm 4, and a connecting hole 202 is provided inside the first hidden groove 203. A plurality of fastening holes 204 are provided on the side of the outer surface of the diaphragm 4. A plurality of second hidden grooves 208 are provided on the side of the outer surface of the secondary coupling 2 away from the diaphragm 4, and a mounting hole 201 is provided inside the second hidden groove 208.

[0031] When installing the main coupling 1, the secondary coupling 2 and the diaphragm 4, it is only necessary to put the diaphragm 4 on the limiting rod 207 through the limiting hole 206, and insert the limiting rod 207 into the limiting groove 205, so that the multiple connecting holes 202, the multiple fastening holes 204 and the multiple mounting holes 201 can overlap, and then insert multiple bolts and match them with nuts to complete the installation of the diaphragm coupling.

[0032] Three slots 2021 of different sizes are provided inside the secondary coupling 2, and three fastening bolts 2022 are threadedly connected on the upper and lower sides of the outer surface of the secondary coupling 2. The slot sizes of the three slots 2021 gradually decrease, allowing the diaphragm coupling to adapt to three specifications of shafts, which increases the scope of application of the diaphragm coupling and reduces the need for couplings of different sizes.

[0033] The working principle of the present invention is as follows: two secondary couplings 2 are sleeved on the outer surface of the shaft, and the fastening bolts 2022 are rotated to fix them, and then the diaphragm 4 is sleeved on the limiting rod 207 through the limiting hole 206, and the limiting rod 207 is inserted into the limiting groove 205, so that the multiple connection holes 202, the multiple fastening holes 204 and the multiple mounting holes 201 are overlapped, and then multiple bolts are inserted and matched with nuts to complete the installation of the diaphragm coupling, and the first sealing cover 301 is installed. The second sealing cover 302 covers the connection between the main coupling 1 and the secondary coupling 2, and the two connecting blocks 303 pass through the two assembly holes 310 to cover the diaphragm 4 located inside the connection between the main coupling 1 and the secondary coupling 2. The threaded rod 305 is rotated to make the two fixing plates 308 approach each other and insert them into the two fixing grooves 304 to clamp and fix the connecting blocks 303 passing through the assembly holes 310, thereby completing the assembly of the first sealing cover 301 and the second sealing cover 302.

[0034] Although the present invention has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, such modifications or improvements, without departing from the spirit of the present invention, are within the scope of protection claimed herein.

Claims

1. A quick-install diaphragm coupling, comprising a main coupling (1), two auxiliary couplings (2), and two diaphragms (4) arranged between the main coupling (1) and the two auxiliary couplings (2), characterized in that: Two limiting rods (207) are fixedly mounted on both ends of the main coupling (1); two limiting grooves (205) are provided on one end of the secondary coupling (2) close to the diaphragm (4); and two limiting holes (206) are provided on one side of the outer surface of the diaphragm (4) to facilitate rapid assembly of the diaphragm coupling; A sealing ring (3) is provided at the connection between the main coupling (1) and the auxiliary coupling (2), and the sealing ring (3) comprises a first sealing cover (301) and a second sealing cover (302). Two connecting blocks (303) are fixedly mounted on one side of the outer surface of the second sealing cover (302), and fixed grooves (304) are provided on both sides of the outer surfaces of the two connecting blocks (303). Two movable grooves (309) are provided on both sides of the outer surface of the first sealing cover (301), and the inner surfaces of the two movable grooves (309) are fixedly mounted on the outer surface of the first sealing cover (301). One side of the part is rotatably connected to a threaded rod (305), and the other side of the inside of the two moving grooves (309) is fixedly installed with a sliding rod (306), the outer surface of the threaded rod (305) is threadedly connected to two moving blocks (307), and the outer surface of the sliding rod (306) is slidably connected to the two moving blocks (307), one side of the four moving blocks (307) is respectively fixedly installed with two fixed plates (308), and the first sealing cover (301) is located on both sides of the fixed plate (308) and is provided with assembly holes (310).

2. The quick-install diaphragm coupling according to claim 1, characterized in that: The first sealing cover (301) and the second sealing cover (302) are both provided with rubber sleeves (3011), and adhesive stickers (3012) are adhered to one side of the outer surface of the two rubber sleeves (3011), and the two adhesive stickers (3012) are adhered to the inner walls of the first sealing cover (301) and the second sealing cover (302), respectively.

3. The quick-install diaphragm coupling according to claim 1, characterized in that: The outer surface of the threaded rod (305) is provided with two opposite threads. One side of the outer surface of the first sealing cover (301) is rotatably connected to two rotating handles, and the two rotating handles are respectively fixedly connected to the two threaded rods (305).

4. The quick-install diaphragm coupling according to claim 1, characterized in that: A plurality of first hidden grooves (203) are provided on a side of the outer surface of the main coupling (1) away from the diaphragm (4), and a connection hole (202) is provided inside the first hidden groove (203); a plurality of fastening holes (204) are provided on a side of the outer surface of the diaphragm (4); a plurality of second hidden grooves (208) are provided on a side of the outer surface of the secondary coupling (2) away from the diaphragm (4), and a mounting hole (201) is provided inside the second hidden groove (208).

5. The quick-install diaphragm coupling according to claim 1, characterized in that: Three slots (2021) of different sizes are provided inside the secondary coupling (2), and three fastening bolts (2022) are threadedly connected on both upper and lower sides of the outer surface of the secondary coupling (2).

6. The quick-install diaphragm coupling according to claim 4, characterized in that: The size of the mounting hole (201) is the same as the size of the connecting hole (202).

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