Locking device of municipal drainage pipeline

Abstract

The utility model discloses a locking device for municipal drainage pipelines, which belongs to the technical field of locking devices for municipal pipelines and comprises a first drainage pipeline and a second drainage pipeline, fixing sleeves are sleeved at the ends of the first drainage pipeline and the second drainage pipeline, and a locking structure is arranged between the first drainage pipeline and the second drainage pipeline. The locking structure comprises a first locking ring and a second locking ring, a movable block is arranged on the first locking ring, a movable groove is formed in the second locking ring, and the first locking ring and the second locking ring are in sliding connection through the movable block and the movable groove; according to the utility model, the locking structure, namely the first locking ring and the second locking ring, is arranged, and the movable blocks and the movable blocks on the first locking ring and the second locking ring are matched for use, so that the first locking ring is fixed on the second locking ring, the connection of two pipelines is completed, a plurality of bolts do not need to be repeatedly tightened, and the mounting and the dismounting are more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of municipal pipeline locking devices, and in particular relates to a municipal drainage pipeline locking device. Background Art

[0002] Municipal drainage pipes refer to rainwater and sewage pipes under municipal roads, commonly known as "sewer pipes". In engineering, they are usually called municipal drainage pipes. Drainage pipes take into account the separation of rainwater and sewage, that is, rainwater is generally discharged into the nearest river, and sewage is discharged into the sewage treatment plant. Therefore, municipal drainage pipes include rainwater and sewage pipes. When installing municipal pipes, the two pipes need to be connected by a locking device.

[0003] Most of the existing municipal drainage pipes are fixed and installed by flanges and bolts. A single bolt connection is not tight enough, and multiple bolts need to be tightened in sequence. Since the pipes are installed and cannot be moved at will, the bolts at the bottom of the pipes are not easy to tighten, which brings a lot of inconvenience to installation and disassembly. Utility Model Content

[0004] The purpose of the utility model is to provide a locking device for a municipal drainage pipe to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a locking device for a municipal drainage pipe, comprising a first drainage pipe and a second drainage pipe, the ends of the first drainage pipe and the second drainage pipe are both provided with fixed sleeves, and a locking structure is arranged between the first drainage pipe and the second drainage pipe, the locking structure comprises a first locking ring and a second locking ring, the first locking ring is provided with a movable block, and the second locking ring is provided with a movable groove, the first locking ring and the second locking ring are slidably connected through the movable block and the movable groove.

[0006] Preferably, the fixed sleeve comprises an outer sleeve and an inner sleeve, the outer sleeve is sleeved on the outside of the inner sleeve, and a hollow through hole is provided in the inner sleeve.

[0007] Preferably, the outer side of the outer sleeve is provided with threads, and the inner sides of the first locking ring and the second locking ring are both provided with thread grooves matching the threads.

[0008] Preferably, an interlayer capable of accommodating the first drainage pipe and the second drainage pipe is provided between the outer sleeve and the inner sleeve, and the other side of the interlayer is a sealing surface.

[0009] Preferably, the movable block comprises a slide groove and a protrusion, the movable block is composed of two mutually perpendicular fixed blocks, and the two fixed blocks are integrally formed, the protrusion is arranged on one of the fixed blocks, and the slide groove is formed between the other fixed block and the protrusion.

[0010] Preferably, an open groove is provided on the movable slot, and the protrusion matches the groove.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) The utility model provides a locking structure, namely a first locking ring and a second locking ring, and uses movable blocks and movable parts on the first locking ring and the second locking ring to fix the first locking ring on the second locking ring to complete the connection between the two pipes. There is no need to repeatedly tighten multiple bolts, making installation and disassembly more convenient.

[0013] (2) With respect to the above-mentioned locking structure, in order to facilitate the installation of the locking structure on the first drainage pipe and the second drainage pipe, the utility model provides a fixing sleeve. By sleeved the fixing sleeve on the first drainage pipe and the second drainage pipe, the first locking ring and the second locking ring are threadedly connected to the fixing sleeve, and the connection is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 for Figure 1 A in the enlarged view;

[0016] Figure 3 It is a three-dimensional diagram of the movable block of the utility model;

[0017] Figure 4 It is a three-dimensional diagram of the movable groove of the utility model;

[0018] Figure 5 It is a schematic diagram of the cooperation between the movable block and the movable groove of the utility model;

[0019] Figure 6 This is a schematic diagram of the locking structure of the utility model;

[0020] Figure 7 It is a schematic diagram of the locking structure of the utility model when it is locked;

[0021] Figure 8 The three-dimensional fixed sleeve of the utility model Figure 1 ;

[0022] Fig. 9 The three-dimensional fixed sleeve of the utility model Figure 2 .

[0023] In the figure: 1-first drainage pipe; 2-fixed sleeve; 21-outer sleeve; 22-inner sleeve; 23-interlayer; 24-thread; 25-through hole; 26-sealing surface; 3-first locking ring; 4-second drainage pipe; 5-movable block; 51-slide groove; 52-bump; 6-second locking ring; 7-movable groove; 71-groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 9 As shown, the utility model provides the following technical solutions: a locking device for a municipal drainage pipe, comprising a first drainage pipe 1 and a second drainage pipe 4, the ends of the first drainage pipe 1 and the second drainage pipe 4 are both sleeved with a fixed sleeve 2, and a locking structure is arranged between the first drainage pipe 1 and the second drainage pipe 4, the locking structure comprises a first locking ring 3 and a second locking ring 6, movable blocks 5 are arranged at intervals on the first locking ring 3, and movable grooves 7 are arranged at intervals on the second locking ring 6, the interval between the two movable grooves 7 is less than or equal to the length of the movable block 5, and the first locking ring 3 and the second locking ring 6 are slidably connected with the movable groove 7 through the movable block 5.

[0026] In view of the above, when using the utility model, firstly, the fixed sleeve 2 is sleeved on the ends of the first drainage pipe 1 and the second drainage pipe 4, and the second locking ring 6 is fixed to the outside of the fixed sleeve 2. At the same time, the movable block 5 on the first locking ring 3 is placed at the interval of the movable groove 7 (such as Figure 6 As shown), rotate the first locking ring 3 so that the movable block 5 slides to the middle part of the movable groove 7 (as shown in FIG. Figure 7 As shown, it is the locking position), and at the same time, the first locking ring 3 is fixed on the fixed sleeve 2 until the first locking ring 3 fits with the second locking ring 6, thereby completing the connection between the first drainage pipe 1 and the second drainage pipe 4.

[0027] Specifically, Figure 8 and Fig. 9 As shown, in one embodiment, regarding the above-mentioned fixing sleeve 2:

[0028] The fixed sleeve 2 includes an outer sleeve 21 and an inner sleeve 22. The outer sleeve 21 is sleeved on the outside of the inner sleeve 22, and a hollow through hole 25 is provided in the inner sleeve 22.

[0029] The outer sleeve 21 is provided with a thread 24 on its outside, and the inner sides of the first locking ring 3 and the second locking ring 6 are provided with a thread groove matching the thread 24. Through the cooperation between the thread 24 and the thread groove, the first locking ring 3 and the second locking ring 6 can be threadedly connected to the outer sleeve 21, so that the first locking ring 3 and the second locking ring 6 can be installed on the first drainage pipe 1 and the second drainage pipe 4;

[0030] An interlayer 23 for accommodating the first drainage pipe 1 and the second drainage pipe 4 is provided between the outer sleeve 21 and the inner sleeve 22 , and the other surface of the interlayer 23 is a sealing surface 26 .

[0031] In view of the above, when using the fixed sleeve 2, the inner sleeve 22 is located inside the first drainage pipe 1 and the second drainage pipe 4, the outer sleeve 21 is located outside the first drainage pipe 1 and the second drainage pipe 4, and the first drainage pipe 1 and the second drainage pipe 4 are located in the interlayer 23. After aligning the positions, the fixed sleeve 2 is pushed inward until the end faces of the first drainage pipe 1 and the second drainage pipe 4 are attached to the sealing surface 26 of the interlayer 23, thereby completing the installation of the fixed sleeve 2.

[0032] In addition, if Figure 2-Figure 5 As shown, in the present invention, the movable block 5 includes a slide groove 51 and a protrusion 52. The movable block 5 is composed of two mutually perpendicular fixed blocks, and the two fixed blocks are integrally formed. The protrusion 52 is arranged on one of the fixed blocks, and the slide groove 51 is formed between the other fixed block and the protrusion 52.

[0033] An open groove 71 is provided on the movable slot 7 , and the protrusion 52 matches the groove 71 .

[0034] In view of the above, when the movable block 5 cooperates with the movable groove 7, the protrusion 52 is located in the groove 71 and can slide in the groove 71, thereby ensuring that the movable block 5 can be in the middle position of the movable groove 7 (such as Figure 7 As shown), the setting of the protrusion 52 makes the connection between the first locking ring 3 and the second locking ring 6 tighter, ensuring the tightness of the connection between the first drainage pipe 1 and the second drainage pipe 4.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A locking device for a municipal drainage pipe, characterized in that: The invention comprises a first drainage pipe (1) and a second drainage pipe (4), the ends of the first drainage pipe (1) and the second drainage pipe (4) are both sleeved with a fixed sleeve (2), and a locking structure is arranged between the first drainage pipe (1) and the second drainage pipe (4), the locking structure comprises a first locking ring (3) and a second locking ring (6), movable blocks (5) are arranged at intervals on the first locking ring (3), and movable grooves (7) are arranged at intervals on the second locking ring (6), and the first locking ring (3) and the second locking ring (6) are slidably connected via the movable blocks (5) and the movable grooves (7).

2. A locking device for a municipal drainage pipe according to claim 1, characterized in that: The fixed sleeve (2) comprises an outer sleeve (21) and an inner sleeve (22); the outer sleeve (21) is sleeved on the outside of the inner sleeve (22), and a hollow through hole (25) is provided in the inner sleeve (22).

3. A locking device for a municipal drainage pipe according to claim 2, characterized in that: The outer side of the outer sleeve (21) is provided with a thread (24), and the inner sides of the first locking ring (3) and the second locking ring (6) are provided with a thread groove matching the thread (24).

4. A locking device for a municipal drainage pipe according to claim 2, characterized in that: An interlayer (23) capable of accommodating the first drainage pipe (1) and the second drainage pipe (4) is provided between the outer sleeve (21) and the inner sleeve (22), and the other surface of the interlayer (23) is a sealing surface (26).

5. The locking device for a municipal drainage pipe according to claim 1, characterized in that: The movable block (5) comprises a slide groove (51) and a protrusion (52). The movable block (5) is composed of two mutually perpendicular fixed blocks, and the two fixed blocks are integrally formed. The protrusion (52) is arranged on one of the fixed blocks, and the slide groove (51) is formed between the other fixed block and the protrusion (52).

6. A locking device for a municipal drainage pipe according to claim 5, characterized in that: An open groove (71) is provided on the movable slot (7), and the protrusion (52) matches the groove (71).

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