Pipe connection structure, connecting pipe and floor mat

Abstract

The utility model discloses a pipe fitting connecting structure, connecting pipe and ground mop, pipe fitting connecting structure includes: first pipe fitting, and the outer wall is provided with through -hole, second pipe fitting, at least partial intrudes into first pipe fitting, and the outer wall has locking groove, and locking groove has the upper wall surface and lower wall surface opposite to each other, lock catch, the activity sets up on first pipe fitting, has the lock bolt that can pass through the through -hole and intrudes into locking groove, is used for limiting second pipe fitting axial activity, and the one end of lock bolt intruding into locking groove has with the first wall opposite to the upper wall surface and with the second wall opposite to the lower wall surface, and, lock bolt and locking groove between constitute self -locking structure, make lock bolt can keep in locking groove under non -force state, and self -locking structure forms between upper wall surface and first wall or between lower wall surface and second wall. Its technical scheme can obtain the pipe fitting connecting structure of relatively stable, and the convenience of matching and disassembling, and the action such as shaking and swinging caused by using after pipe fitting connection will not influence the stability of pipe fitting connection.

Description

Technical Field

[0001] This utility model relates to the technical field of cleaning equipment and its components, and in particular to a pipe connection structure, a connecting pipe, and a floor mop. Background Technology

[0002] In common cleaning equipment applications, connecting pipes are required. For ease of use, these pipes often need to be extendable or retractable. Therefore, connecting pipes are typically designed as telescopic structures or multi-component plug-in assembly structures. Regardless of the structure, a locking mechanism is needed to lock and limit the inner and outer pipes, preventing them from separating or changing length during operation. Usually, the locking mechanism is placed on the outer pipe and can extend into the inner pipe for locking. However, during use, it is prone to slipping out due to shaking or swaying, thus releasing the lock between the inner and outer pipes, resulting in a poor user experience. This is especially true for cleaning appliances such as mops and steam brushes, which require internal flow channels within the connecting pipe. When the connecting pipe is released from its locking position, it can easily affect these internal flow channels, causing steam or liquid to spray out, severely impacting the user experience. Utility Model Content

[0003] To address the aforementioned problems in the existing technology, a pipe connection structure, connecting pipe, and floor mop are provided. This structure has a relatively stable connection, is easy to assemble and disassemble, and the shaking or swaying caused by the use of the pipe connection will not affect the stability of the connection. This overcomes at least one of the aforementioned technical defects.

[0004] The specific technical solution is as follows:

[0005] A pipe fitting connection structure, comprising:

[0006] The first pipe fitting has a through hole on its outer wall;

[0007] The second pipe fitting is arranged coaxially with the first pipe fitting and extends at least partially into the first pipe fitting. The outer peripheral wall of the second pipe fitting has a locking groove opposite to the through hole. The locking groove has an upper wall surface and a lower wall surface that are opposite to each other.

[0008] The latch is movably mounted on the first pipe and has a latch tongue that can pass through the through hole and extend into the locking groove to limit the axial movement of the second pipe. The end of the latch tongue that extends into the locking groove has a first wall opposite to the upper wall surface and a second wall opposite to the lower wall surface.

[0009] Furthermore, a self-locking structure is formed between the latch and the locking groove, which allows the latch to remain in the locking groove when no force is applied, and the self-locking structure is formed between the upper wall and the first wall or between the lower wall and the second wall.

[0010] Preferably, the upper wall surface and the first wall or the lower wall surface and the second wall are respectively formed as inclined surfaces that are inclined in a direction away from the through hole, and the inclined surfaces between each other form a self-locking structure.

[0011] Preferably, the upper wall surface and the first wall surface or the lower wall surface and the second wall surface have a magnetic attraction structure, a stop structure or a hook structure, and the magnetic attraction structure, the stop structure or the hook structure serves as a self-locking structure.

[0012] Preferably, in the longitudinal section direction, the radial direction of the wall of the first pipe extending towards the axis is defined as the first direction, the second wall and the lower wall are both inclined surfaces that slope downward along the first direction, and the inclined surface of the second wall forms the second direction, and the inclined surface of the lower wall forms the third direction. The second direction and the first direction form a first angle with an acute angle, and the third direction and the first direction form a second angle with an acute angle.

[0013] Preferably, the angle of the first included angle is equal to the angle of the second included angle, and the angle of the first included angle is 5 to 20 degrees.

[0014] Preferably, the angle of the first included angle is less than the angle of the second included angle or the angle of the first included angle is greater than the angle of the second included angle, and the angle of the first included angle is 15 degrees and the angle of the second included angle is 5 degrees or 20 degrees.

[0015] Preferably, the outer wall of the first pipe fitting also has a mounting groove for accommodating the latch, and the middle part of the latch is hinged in the mounting groove. A through hole is opened in the mounting groove. One end of the latch has a latch tongue that passes through the through hole. The other end of the latch is provided with an elastic member between it and the inner bottom surface of the mounting groove, so that the latch tongue has a preload force that moves in the direction of the locking groove.

[0016] This utility model also provides a connecting pipe, including multiple axially arranged pipe assemblies, adjacent pipe assemblies being detachably connected by the pipe fitting connection structure described above, and the pipe assemblies at both ends being used to connect external working accessories. Each pipe assembly includes:

[0017] First fitting;

[0018] The second pipe fitting is fixed to the first pipe fitting at its upper end and can extend into the upper end of the first pipe fitting of the adjacent pipe assembly at its lower end.

[0019] A locking buckle is movably mounted on the outer peripheral wall of the first pipe fitting and is used to lock the second pipe fitting of the adjacent pipe assembly.

[0020] Preferably, a first pipe joint is installed inside the upper end of the first pipe fitting, and a second pipe joint is installed inside the lower end of the second pipe fitting. The first pipe joint and the second pipe joint are connected by a pipe, and together with the first pipe joint, the second pipe joint, and the pipe, they form an internal flow channel for the flow of liquid or steam.

[0021] This utility model also provides a floor mop, which has a mop handle, a connecting pipe as described above, and a third pipe with the same structure as the first pipe is hinged to the mop handle. The second pipe at the end of the connecting pipe can be detached and connected to the third pipe.

[0022] The beneficial effects of the above technical solution are as follows:

[0023] (1) The pipe fitting connection structure includes a first pipe fitting, a second pipe fitting, and a lock. The lock has a locking tongue that passes through the first pipe fitting and extends into the locking groove on the outer periphery of the second pipe fitting. The locking tongue and the locking groove also form a locking structure on their opposite sides, making it difficult for the lock to come out of the locking groove when no force is applied, and restricting the axial movement of the second pipe fitting. This results in a relatively stable pipe fitting connection structure that is easy to assemble and disassemble. The shaking and swaying caused by the use of the pipe fitting after connection will not affect the stability of the pipe fitting connection.

[0024] (2) When the first included angle and the second included angle are the same, it is easier to disengage the locking tongue outward along the bevel. When the first included angle and the second included angle are different, they form a hooking effect, making the self-locking effect better.

[0025] (3) The connecting pipe is suitable for mops and other cleaning appliances, such as steam brushes, water spray cleaning brushes, etc. It can be used to assemble multiple pipe components through the pipe fitting connection structure to achieve the purpose of extending the pipeline, and can also expand the internal flow channel for liquid or steam flow. It is convenient and reliable, easy to assemble and disassemble, and is not easy to fall apart due to shaking or swaying during use. Attached Figure Description

[0026] Figure 1 This is a perspective view of the pipe fitting connection structure of this utility model;

[0027] Figure 2 This is a cross-sectional view of the pipe fitting connection structure of this utility model;

[0028] Figure 3 for Figure 2 A magnified view of a section of the central I area;

[0029] Figure 4 This is a perspective view of the locking mechanism in the pipe fitting connection structure of this utility model;

[0030] Figure 5 This is an exploded view of the locking and limiting tube in the pipe fitting connection structure of this utility model from a side view.

[0031] Figure 6 This is a perspective view of the pipe assembly of this utility model;

[0032] Figure 7 This is a perspective view of the floor mop of this utility model. Detailed Implementation

[0033] To make the technical means, creative features, achieved objectives and effects of this utility model easier to understand, the following embodiments are described in detail with reference to the accompanying drawings. And the following definitions are provided: Figure 2 The up-down direction shown on the paper is the up-down direction in this embodiment.

[0034] Example 1,

[0035] See Figures 1 to 5 As shown in the figure, the pipe connection structure provided in this embodiment includes:

[0036] The first pipe fitting 1 has a through hole 6 on its outer wall;

[0037] The second pipe fitting 2 is arranged coaxially with the first pipe fitting 1 and extends at least partially into the first pipe fitting 1. The outer peripheral wall of the second pipe fitting 2 has a locking groove 4 opposite to the through hole 6. The locking groove 4 has an upper wall surface 9 and a lower wall surface 10 that are opposite to each other.

[0038] The latch 3 is movably mounted on the first pipe 1 and has a latch 5 that can pass through the through hole 6 and extend into the locking groove 4 to limit the axial movement of the second pipe 2. The end of the latch 5 that extends into the locking groove 4 has a first wall 11 opposite to the upper wall surface 9 and a second wall 12 opposite to the lower wall surface 10.

[0039] Furthermore, a self-locking structure is formed between the locking tongue 5 and the locking groove 4, which enables the locking tongue 5 to remain in the locking groove 4 when no force is applied, and the self-locking structure is formed between the upper wall surface 9 and the first wall 11 or between the lower wall surface 10 and the second wall 12.

[0040] Based on the above technical solution, the pipe fitting connection structure includes a first pipe fitting 1, a second pipe fitting 2, and a locking buckle 3. The locking buckle 3 has a locking tongue 5, which passes through the first pipe fitting 1 and extends into the locking groove 4 on the outer periphery of the second pipe fitting 2. The locking tongue 5 and the locking groove 4 also form a locking structure on their two opposing surfaces, making it difficult for the locking buckle 3 to disengage from the locking groove 4 when no force is applied, and restricting the axial movement of the second pipe fitting 2. This results in a relatively stable pipe fitting connection structure that is easy to assemble and disassemble. Shaking and swaying caused by the use of the pipe fitting after connection will not affect the stability of the pipe fitting connection.

[0041] In a preferred embodiment, the upper wall surface 9 and the first wall 11 or the lower wall surface 10 and the second wall 12 are respectively configured as inclined surfaces in a direction away from the through hole 6, and the inclined surfaces between them serve as the self-locking structure described above, so that it is not easy to get out when no force is applied, and it is more convenient and less strenuous to get out when force is applied.

[0042] As an optional embodiment, the upper wall surface 9 and the first wall 11 or the lower wall surface 10 and the second wall 12 are provided with a magnetic attraction structure, a stop structure, or a hook structure. Specifically, the magnetic attraction structure, the stop structure, or the hook structure serves as a self-locking structure. The magnetic attraction structure can be: magnetic elements (at least one of which is a magnet) are embedded on the two surfaces respectively. The stop structure is: an inner stop and an outer stop are formed on the two surfaces respectively. The hook structure is: a groove is provided on one surface and a hook is provided on the other surface. The hook can be inserted into the groove and disengaged when force is applied, all of which can achieve the purpose of self-locking after assembly.

[0043] In a preferred embodiment, in the longitudinal section direction, the radial direction of the wall of the first pipe 1 extending towards the axis is defined as the first direction X. The second wall 12 and the lower wall surface 10 are both inclined surfaces that slope downward along the first direction X. The inclined surface of the second wall 12 forms the second direction Y, and the inclined surface of the lower wall surface 10 forms the third direction Z. The second direction Y and the first direction X form a first included angle A with an acute angle, and the third direction Z and the first direction X form a second included angle B with an acute angle.

[0044] In a further preferred embodiment, the angle of the first included angle A is equal to the angle of the second included angle B, and the angle of the first included angle A is 5 to 30 degrees. Further, the angles of both the first included angle A and the second included angle B are 15 degrees.

[0045] As an optional embodiment, the angle of the first included angle A is smaller than the angle of the second included angle B, or the angle of the first included angle A is greater than the angle of the second included angle B, and the angle of the first included angle A is 5 to 30 degrees, and the angle of the second included angle B is 5 to 30 degrees. Further, the angle of the first included angle A is 15 degrees, and the angle of the second included angle B is 10 degrees or 20 degrees.

[0046] It is worth noting that when the first included angle A and the second included angle B are the same, it is easier to disengage the locking tongue 5 outward along the bevel. When the first included angle A and the second included angle B are different, they form a hooking effect, making the self-locking effect better.

[0047] In a preferred embodiment, the outer wall of the first pipe fitting 1 also has a mounting groove 7 for accommodating the latch 3, and the latch 3 is hinged in the middle of the mounting groove 7. A through hole 6 is formed in the mounting groove 7. One end of the latch 3 has a latch tongue 5 passing through the through hole 6, and the other end of the latch 3 is provided with an elastic member 8 between it and the inner bottom surface of the mounting groove 7, so that the latch tongue 5 has a preload force that moves towards the locking groove 4. When pressed, the latch tongue 5 can disengage from the locking groove 4 due to the hinge structure. At this time, the elastic member 8 is compressed. Preferably, the elastic member 8 is a spring, but it can also be an elastic column.

[0048] In addition, to ensure the stability of the pipe connection, a retractable locking block is designed on the outer peripheral wall of the part of the second pipe that extends into the first pipe. Correspondingly, a locking groove is provided on the outer peripheral wall of the first pipe for the locking block to be engaged, so as to limit the axial movement and radial rotation between the two. At the same time, an abutting stepped surface is also provided between the two to limit the stroke of the second pipe extending into the first pipe and to limit its further axial extension into the first pipe. This is not the main design point of this embodiment, so it is omitted here.

[0049] Example 2,

[0050] Combination Figure 6 As shown in the figure, the connecting pipe provided in this embodiment includes a plurality of axially arranged pipe assemblies 13. Adjacent pipe assemblies 13 are detachably connected by a pipe fitting connection structure as described in Embodiment 1 above. The pipe assemblies 13 at both ends are used to connect external working accessories. Each pipe assembly 13 includes:

[0051] The first pipe fitting 1;

[0052] The second pipe fitting 2 described above has its upper end fixedly connected to the first pipe fitting 1, and its lower end can extend into the upper end of the first pipe fitting 1 of the adjacent pipe assembly 13.

[0053] The locking buckle 3 is movably disposed on the outer peripheral wall of the first pipe fitting 1 and is used to lock the second pipe fitting 2 of the adjacent pipe assembly 13.

[0054] In a preferred embodiment, combined with Figure 2 As shown, a first pipe joint 17 is installed inside the upper end of the first pipe fitting 1, and a second pipe joint 16 is installed inside the lower end of the second pipe fitting 2. The first pipe joint 17 and the second pipe joint 16 are connected by a pipe 18, and together with the first pipe joint 17, the second pipe joint 16 and the pipe 18, they form an internal flow channel for the flow of liquid or steam.

[0055] As a further preferred embodiment, when multiple pipe assemblies 13 are assembled and connected, the second pipe connector 16 is inserted into the first pipe connector 17 of the adjacent pipe assembly 13.

[0056] Example 3,

[0057] Combination Figure 7 As shown in the figure, the mop provided in this embodiment has a mop handle 14, a connecting pipe as described in the above embodiment 2, and a third pipe 15 with the same structure as the first pipe 1 is hinged to the mop handle 14. The second pipe 2 at the end of the connecting pipe can be detached and connected to the third pipe 15.

[0058] Specifically, the third fitting 15 also has a consistent locking buckle 3, allowing the connecting pipe to be connected to the third fitting 15 using the same fitting connection structure. Simultaneously, the second pipe connector 16 on the second fitting 2 can spray liquid or steam onto the mop 14 for easy cleaning. Furthermore, the aforementioned connecting pipe is suitable for floor mops and other cleaning appliances, such as steam brushes, water spray cleaning brushes, etc. Multiple pipe assemblies 13 can be assembled through the fitting connection structure to extend the pipe 18, and the internal flow channels can be expanded to allow for the flow of liquid or steam. It is convenient, reliable, easy to assemble and disassemble, and not easily disintegrated due to shaking or wobbling during use.

[0059] The above description is merely a preferred embodiment of the present utility model and is illustrative rather than restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present utility model, all of which will fall within the protection scope of the present utility model.

Claims

1. A pipe fitting connection structure, characterized in that, include: The first pipe fitting (1) has a through hole (6) on its outer wall; The second pipe fitting (2) is coaxially arranged with the first pipe fitting (1) and extends at least partially into the first pipe fitting (1). The outer peripheral wall of the second pipe fitting (2) has a locking groove (4) opposite to the through hole (6). The locking groove (4) has an upper wall surface (9) and a lower wall surface (10) that are opposite to each other. The latch (3) is movably disposed on the first pipe (1) and has a latch (5) that can pass through the through hole (6) and extend into the locking groove (4) to limit the axial movement of the second pipe (2). The end of the latch (5) extending into the locking groove (4) has a first wall (11) opposite to the upper wall surface (9) and a second wall (12) opposite to the lower wall surface (10). Furthermore, a self-locking structure is formed between the locking tongue (5) and the locking groove (4), which enables the locking tongue (5) to remain in the locking groove (4) when no force is applied, and the self-locking structure is formed between the upper wall surface (9) and the first wall (11) or between the lower wall surface (10) and the second wall (12).

2. The pipe fitting connection structure as described in claim 1, characterized in that, The upper wall surface (9) and the first wall (11) or the lower wall surface (10) and the second wall (12) are respectively configured as inclined surfaces in a direction away from the through hole (6), and the self-locking structure is formed by the inclined surfaces between each other.

3. The pipe fitting connection structure as described in claim 1, characterized in that, The upper wall surface (9) and the first wall (11) or the lower wall surface (10) and the second wall (12) have a magnetic attraction structure, a stop structure or a hook structure, and the magnetic attraction structure, the stop structure or the hook structure serves as the self-locking structure.

4. The pipe fitting connection structure as described in claim 2, characterized in that, In the longitudinal section direction, the radial direction of the wall of the first pipe (1) extending towards the axis is defined as the first direction. The second wall (12) and the lower wall surface (10) are both inclined surfaces that slope downward along the first direction. The inclined surface of the second wall (12) forms the second direction, and the inclined surface of the lower wall surface (10) forms the third direction. The second direction and the first direction form a first angle with an acute angle, and the third direction and the first direction form a second angle with an acute angle.

5. The pipe fitting connection structure as described in claim 4, characterized in that, The angle of the first included angle is equal to the angle of the second included angle, and the angle of the first included angle is between 5 and 30 degrees.

6. The pipe fitting connection structure as described in claim 4, characterized in that, The angle of the first included angle is less than the angle of the second included angle or the angle of the first included angle is greater than the angle of the second included angle, and the angle of the first included angle is 15 degrees, and the angle of the second included angle is 10 degrees or 20 degrees.

7. The pipe fitting connection structure as described in claim 5, characterized in that, The outer wall of the first pipe fitting (1) also has a mounting groove (7) for accommodating the buckle (3), and the middle part of the buckle (3) is hinged in the mounting groove (7). The through hole (6) is opened in the mounting groove (7). One end of the buckle (3) has a locking tongue (5) that passes through the through hole (6). The other end of the buckle (3) is also provided with an elastic member (8) between it and the inner bottom surface of the mounting groove (7), so that the locking tongue (5) has a pre-tightening force that moves towards the locking groove (4).

8. A connecting pipe comprising a plurality of axially arranged pipe assemblies (13), characterized in that, Adjacent pipe assemblies (13) are detachably connected by a pipe fitting connection structure as described in any one of claims 1 to 7, and the pipe assemblies (13) at both ends are used to connect external working accessories, each pipe assembly (13) comprising: The first pipe fitting (1); The second pipe fitting (2) is fixed at the upper end to the first pipe fitting (1) and at the lower end can extend into the upper end of the first pipe fitting (1) of the adjacent pipe assembly (13); The latch (3) is movably disposed on the outer peripheral wall of the first pipe fitting (1) and is used to lock the second pipe fitting (2) of the adjacent pipe assembly (13).

9. The connecting pipe as described in claim 8, characterized in that, The upper end of the first pipe fitting (1) is also equipped with a first pipe joint (17), and the lower end of the second pipe fitting (2) is equipped with a second pipe joint (16). The first pipe joint (17) and the second pipe joint (16) are connected by a pipe (18), and form an internal flow channel for the flow of liquid or steam in the first pipe joint (17), the second pipe joint (16) and the pipe (18).

10. A floor mop, characterized in that, It has a mop (14), a connecting pipe as described in claim 9, and a third pipe (15) with the same structure as the first pipe (1) is hinged to the mop (14), and the second pipe (2) at the end of the connecting pipe can be detachably connected to the third pipe (15).

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