Sealing type corrugated pipe splicing device and splicing method

Abstract

The invention discloses a sealing type corrugated pipe splicing device which comprises sleeves (2) arranged on the outer side of a corrugated pipe (1) in a sleeving mode and a closing seat (3) matched with the end of the sleeves (2) and the corrugated pipe (1), a tightening structure (4) is arranged between the sleeves (2) and comprises fixing plates (41) arranged on the outer sides of the sleeves (2), and a tightening spring (42) is arranged between the fixing plates (41). The two corrugated pipes (1) are sleeved with the two sleeves (2), and the closing seats (3) are fixed to the corrugated pipes (1), so that the corrugated pipes (1) at the two ends can be pulled close to each other through the tightening structures (4), the two corrugated pipes (1) are connected together, a sealing ring (8) can be additionally arranged between the corrugated pipes (1) at the two ends, and a better sealing effect can be achieved; gaps between the corrugated pipes (1) at the two ends are reduced, and the situation of gap leakage is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of bellows, and in particular to a sealed bellows connecting device. Background Art

[0002] The bellows is a pipe with a wavy appearance. The bellows has the characteristics of being foldable, bendable and retractable, which allows it to be used in many occasions.

[0003] The patent number is 202222896987.2, and a public specification published on February 7, 2023 discloses a rotating quick-connect bellows connector, including two sections of bellows bodies, one end of one bellows body is sleeved with a first connecting tube, and one end of the other bellows body is sleeved with a second connecting tube, and one end of the first connecting tube and the second connecting tube are both provided with a fixed tube, and a threaded cap is threadedly connected to the fixed tube, and a first inner tube is provided inside the first connecting tube. The present invention tightens the fixed tube by rotating the threaded cap to fix the first connecting tube and the second connecting tube, inserts the first inner tube into the second inner tube, and makes the second inner tube located between the arc plate and the first inner tube, thereby improving the sealing of the connection, and rotating the second connecting tube so that the clamping block enters one end of the L-shaped groove to clamp, and connects the first connecting tube and the second connecting tube, replacing the transmission threaded connection connection method, avoiding looseness of the connection, and preventing medium leakage.

[0004] In existing production activities, the length of the corrugated pipe is not enough when in use, so it is necessary to replace it with a longer corrugated pipe, resulting in a waste of resources. When using a shorter corrugated pipe for splicing, due to the corrugated shape of the corrugated pipe itself, it can generally only be glued with waterproof tape, but the sealing of the tape cannot be guaranteed and the service life of the tape is short. Summary of the invention

[0005] The invention aims to provide a sealed bellows connecting device capable of connecting bellows.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a sealed bellows connecting device, including a sleeve mounted on the outside of the bellows, the end of the sleeve matches the closing seat of the bellows, and a tightening structure for pulling the two sleeves closer to each other is provided between the sleeves.

[0007] The tightening structure comprises a fixing plate arranged outside the sleeve, and a tightening spring is arranged between the fixing plates.

[0008] A support rod is arranged between the fixing plates, the tightening spring is sleeved on the outside of the support rod, a protection groove is arranged on the fixing plate, and two ends of the tightening spring are located in the protection groove.

[0009] The fixing plate is provided with a through hole matched with the support rod, and the fixing plate is provided with a baffle for separating the through hole, and the end of the baffle is located outside the fixing plate.

[0010] A clamping groove is provided on one end of the baffle plate located inside the fixed plate, the end of the support rod is located in the clamping groove, the clamping groove is located on both sides of the baffle plate, and a pressing groove is provided on one side of the baffle plate located outside the fixed plate.

[0011] A hinge is arranged between the closing seat and the sleeve, a pair of closing seats are arranged at one end of the sleeve, side plates are arranged on the outer sides of the closing seats, and bolts are arranged between adjacent side plates.

[0012] A groove matching with the bellows is arranged in the closing seat, the shape of the end of the groove matches with the convex shape of the bellows, and the convex part of the bellows is embedded in the groove.

[0013] The inner diameter of the sleeve is greater than the outer diameter of the bellows.

[0014] A sealing ring is provided between the bellows, and a contact groove is provided in the sealing ring to fit with the end of the bellows. The end of the bellows abuts in the contact groove. The bellows is located on both sides of the sealing ring, and the outer diameter of the sealing ring is smaller than the inner diameter of the sleeve.

[0015] A bellows splicing method is implemented using a sealed bellows splicing device, and the steps are as follows:

[0016] S1: Put the sleeve on the bellows at both ends and close the closing seat;

[0017] S2: Insert the sealing ring between the bellows at both ends;

[0018] S3: Pull out the baffle in the fixed plate to complete the connection of the bellows.

[0019] The technical effect of the present invention is: by putting two sleeves outside the two bellows and fixing the closing seat on the bellows, the tightening structure can be used to pull the bellows at both ends closer to each other, so that the two bellows are connected together to complete the connection, and a sealing ring can be added between the bellows at both ends, which can achieve a better sealing effect, reduce the gap between the bellows at both ends, and reduce leakage in the gap. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] This specification includes the following drawings, which show the following contents:

[0021] Figure 1 It is a structural schematic diagram of a sealed bellows connecting device of the present invention;

[0022] Figure 2 for Figure 1A schematic cross-sectional view of a sleeve closure of a sealed bellows connecting device;

[0023] Figure 3 for Figure 1 A schematic diagram of the outer side of a sleeve of a sealed bellows connecting device;

[0024] Figure 4 for Figure 1 A schematic cross-sectional view of a side plate of a sealed bellows connecting device;

[0025] Figure 5 for Figure 1 A schematic diagram of a tightening structure of a sealed bellows connecting device;

[0026] Figure 6 for Figure 1 Schematic diagram of a sealing ring of a sealed bellows connecting device.

[0027] The markings in the figure are: 1. bellows; 2. sleeve; 3. closing seat; 4. tightening structure; 41. fixing plate; 42. tightening spring; 43. support rod; 44. perforation; 45. baffle; 46. snap-in groove; 47. protective grass; 48. press groove; 5. hinge; 6. groove; 7. side panel; 8. sealing ring; 81. abutment groove. DETAILED DESCRIPTION

[0028] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and facilitating their implementation.

[0029] See also Figure 1-6 A sealed bellows connecting device comprises a sleeve 2 sleeved on the outside of the bellows 1, a closing seat 3 matched with the end of the sleeve 2 and a tightening structure 4 for pulling the two sleeves 2 closer to each other is provided between the sleeves 2; by sleeved the two sleeves 2 on the outside of the two bellows 1 and fixing the closing seat 3 on the bellows 1, the tightening structure 4 can be used to pull the bellows 1 at both ends closer to each other, so that the two bellows 1 are connected together, which is convenient to use and quick to install.

[0030] The tightening structure 4 includes a fixing plate 41 arranged outside the sleeve 2, and a tightening spring 42 is arranged between the fixing plates 41; through the tension of the tightening spring 42, the two sleeves 2 drive the bellows 1 to be pulled closer.

[0031] A support rod 43 is provided between the fixing plates 41, and the tightening spring 42 is sleeved on the outside of the support rod 43. A protective groove 47 is provided on the fixing plate 41, and both ends of the tightening spring 42 are located in the protective groove 47; the sleeves 2 at both ends are supported apart by the support rod 43 to avoid being close to each other before being sleeved, which makes it impossible to pull the corrugated tubes 1 at both ends closer to each other, and through the protective groove 47, the tightening spring 42 is less likely to separate from the fixing plate 41, thereby improving the service life of the equipment and ensuring the safety of the equipment.

[0032] A through hole 44 matching with the support rod 43 is provided in the fixed plate 41, and a baffle 45 is provided in the fixed plate 41 to separate the through hole 44, and the end of the baffle 45 is located outside the fixed plate 41; after the bellows 1 is installed, when the bellows 1 needs to be pulled closer, the baffle 45 is pulled out, so that the support rod 43 will not be blocked, and the support tube 43 will pass through the through hole 44. Under the action of the tightening spring 42, the fixed plates 41 on both sides pull the sleeves 2 on both sides closer to each other, thereby using the closing seat 3 to pull the bellows 1 at both ends closer to each other.

[0033] A snap-in groove 46 is provided on one end of the baffle plate 45 located inside the fixed plate 41, and the end of the support rod 46 is located inside the snap-in groove 46. The snap-in groove 46 is located on both sides of the baffle plate 45, and a pressing groove 48 is provided on one side of the baffle plate 45 located outside the fixed plate 41; the snap-in groove 46 can prevent the baffle plate 45 from being separated from the fixed plate 41 when it is not in use, such as in transportation, and avoid the product being scrapped in advance, and the pressing groove 48 facilitates pulling the baffle plate 45 to move

[0034] A hinge 5 is provided between the closing seat 3 and the sleeve 2, a pair of closing seats 3 are provided at one end of the sleeve 2, a side plate 7 is provided on the outer side of the closing seat 3, and bolts are provided between adjacent side plates 7; in this way, the closing seat 3 can rotate relative to the sleeve 2, which is convenient for installation, and the side plates 7 are used to fix the closing seats 3 on the upper and lower sides together, thereby fixing the bellows 1 in the closing seat 3, so that when the sleeve 2 moves, the bellows 1 can be pulled to move by the closing seat 3.

[0035] A groove 6 matching with the bellows 1 is provided in the closing seat 3, and the shape of the end of the groove 6 matches with the convex shape of the bellows 1, and the convex part of the bellows 1 is embedded in the groove 6; by utilizing the cooperation between the groove 6 and the bellows 1, when the sleeve 2 and the closing seat 3 are pulled close to each other, the bellows 1 at both ends are pulled close to each other by utilizing the groove 6, and the two bellows 1 are closed together, thereby achieving a quick connection effect.

[0036] The inner diameter of the sleeve 2 is larger than the outer diameter of the bellows 1 ; when the bellows 1 is squeezed, the outer diameter of the bellows 1 will expand, and by reserving a certain gap, the bellows 1 can be prevented from getting stuck in the sleeve 2 .

[0037] A sealing ring 8 is provided between the bellows 1, and a contact groove 81 is provided in the sealing ring 8 to fit with the end of the bellows 1. The end of the bellows 1 abuts in the abutment groove 81. The bellows 1 is located on both sides of the sealing ring 8, and the outer diameter of the sealing ring 8 is smaller than the inner diameter of the sleeve 2. The sealing ring 8 is used to reduce the gap between the two bellows 1 and reduce the occurrence of leakage. By setting the abutment groove 81, the sealing ring 8 can be prevented from falling off from between the bellows 1.

[0038] A bellows splicing method is implemented using a sealed bellows splicing device, and the steps are as follows:

[0039] S1: Put the sleeve 2 on the bellows 1 at both ends, close the closing seat 3, and use bolts to fix the side plates 7 together, and the protrusion of the bellows 1 is embedded in the groove 6;

[0040] S2: insert the sealing ring 8 between the two ends of the bellows 1, and embed the ends of the two ends of the bellows 1 into the abutment groove 81 to prevent the sealing ring 8 from falling off;

[0041] S3: Pull out the baffle 45 in the fixed plate 41, and the baffle 45 no longer blocks the support rod 43. Under the action of the tightening spring 42, the fixed plates 41 at both ends are pulled closer to each other, thereby pulling the bellows 1 at both ends closer to each other through the closing seat 3, and cooperating with the sealing ring 8 to complete the continuation of the bellows 1.

[0042] The technical effect of the present invention is as follows: by putting two sleeves 2 outside the two bellows 1 and fixing the closing seat 3 on the bellows 1, the tightening structure 4 can be used to pull the bellows 1 at both ends closer to each other, so that the two bellows 1 are connected together, which is convenient to use and quick to install, and a sealing ring 8 can be added between the bellows 1 at both ends, which can achieve a better sealing effect, reduce the gap between the bellows 1 at both ends, and reduce the leakage of the gap.

[0043] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above-mentioned concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A sealed bellows splicing device, characterized in that: It comprises a sleeve (2) sleeved on the outside of a bellows (1), a closing seat (3) at the end of the sleeve (2) matching the bellows (1), and a tightening structure (4) for pulling the two sleeves (2) closer to each other.

2. A sealed bellows splicing device according to claim 1, characterized in that: The tightening structure (4) comprises a fixing plate (41) arranged outside the sleeve (2), and a tightening spring (42) is arranged between the fixing plates (41).

3. A sealed bellows splicing device according to claim 2, characterized in that: A support rod (43) is provided between the fixing plates (41), the tightening spring (42) is sleeved on the outside of the support rod (43), a protection groove (47) is provided on the fixing plate (41), and both ends of the tightening spring (42) are located in the protection groove (47).

4. A sealed bellows splicing device according to claim 3, characterized in that: The fixing plate (41) is provided with a through hole (44) matched with the support rod (43), and the fixing plate (41) is provided with a baffle (45) for separating the through hole (44), and the end of the baffle (45) is located outside the fixing plate (41).

5. A sealed bellows splicing device according to claim 4, characterized in that: A clamping groove (46) is provided on one end of the baffle plate (45) located inside the fixed plate (41), an end of the support rod (46) is located in the clamping groove (46), the clamping groove (46) is located on both sides of the baffle plate (45), and a pressing groove (48) is provided on one side of the baffle plate (45) located outside the fixed plate (41).

6. A sealed bellows splicing device according to claim 1, characterized in that: A hinge (5) is provided between the closing seat (3) and the sleeve (2), a pair of closing seats (3) are provided at one end of the sleeve (2), side plates (7) are provided on the outside of the closing seat (3), and bolts are provided between adjacent side plates (7).

7. A sealed bellows splicing device according to claim 1 or 5, characterized in that: The closing seat (3) is provided with a groove (6) matching with the bellows (1), the shape of the end of the groove (6) matches with the convex shape of the bellows (1), and the convex part of the bellows (1) is embedded in the groove (6).

8. A sealed bellows splicing device according to claim 1, characterized in that: The inner diameter of the sleeve (2) is greater than the outer diameter of the corrugated tube (1).

9. A sealed bellows splicing device according to claim 1, characterized in that: A sealing ring (8) is provided between the bellows (1), and a contact groove (81) is provided inside the sealing ring (8) and fits with the end of the bellows (1). The end of the bellows (1) abuts in the contact groove (81). The bellows (1) is located on both sides of the sealing ring (8), and the outer diameter of the sealing ring (8) is smaller than the inner diameter of the sleeve (2).

10. A bellows splicing method, implemented by using a sealed bellows splicing device according to any one of claims 1 to 9, characterized in that: Here are the steps: S1: Put the sleeve (2) onto the bellows (1) at both ends and close the closing seat (3); S2: Insert the sealing ring (8) between the bellows (1) at both ends; S3: Pull out the baffle plate (45) in the fixing plate (41) to complete the connection of the bellows (1).

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