Connecting assembly and pump

Abstract

The utility model provides a connecting assembly and pump, the connecting assembly includes: first pipe fitting, second pipe fitting and connect first pipe fitting and second pipe fitting with the clamping piece, the surface of first pipe fitting is provided with the hole along the circumferential direction, the surface of second pipe fitting is provided with the groove, the clamping piece includes ferrule part and pressing part, the ferrule part is equipped with the hole along the circumferential direction, and the pressing part is equipped with the pressing part. The ferrule part is of an annular structure and is configured to be connected to the connecting position of the first pipe fitting in a sleeving mode, the pressing part comprises a pair of pressing rods and a pair of elastic pieces which are oppositely arranged, the pair of pressing rods is configured to increase the distance between the pair of elastic pieces when pressed, and the pair of elastic pieces are provided with protruding blocks protruding towards the interior of the clamping piece; the protruding block is of a chamfer structure in the direction facing the second pipe fitting, and the protruding block is configured to penetrate through the hole and be embedded into the groove.

Description

Technical Field

[0001] The utility model relates to the field of connecting components, and particularly relates to a connecting assembly and a pump. Background Art

[0002] A connecting assembly is used to connect two or more parts or devices. The connecting assembly generally includes two connecting parts and a connecting member for inserting them, and the connection between the two connecting parts can be a detachable connection.

[0003] In the related art, the connection between two connecting parts can be a threaded connection or a cam mechanism connection. For the threaded connection, the installation operation is inconvenient. For the cam mechanism connection, since there are many parts in the cam mechanism and it needs to be repeated many times to achieve disassembly and assembly. Summary of the Utility Model

[0004] An object of the utility model aims to solve at least one of the above problems and defects existing in the prior art.

[0005] In view of the above problems, the utility model discloses a connecting assembly, including: a first pipe fitting, a second pipe fitting, and a clamping member connecting the first pipe fitting and the second pipe fitting, wherein, holes are arranged on the surface of the first pipe fitting along the circumferential direction, a groove is arranged on the surface of the second pipe fitting, the clamping member includes a ferrule part and a pressing part, the ferrule part is an annular structure and is configured to be sleeved at the connection of the first pipe fitting, the pressing part includes a pair of pressing rods and a pair of elastic sheets arranged oppositely, the pair of pressing rods are configured to increase the distance between the pair of elastic sheets when being pressed, convex blocks protruding towards the inside of the clamping member are arranged on both of the pair of elastic sheets, the convex blocks are chamfered structures in the direction towards the second pipe fitting, and the convex blocks are configured to pass through the holes and be embedded into the grooves.

[0006] According to an exemplary embodiment of the utility model, first ribs and second ribs are arranged on the outer surface of the first pipe fitting along the axial direction of the first pipe fitting, a protruding part is arranged on the clamping member, and the first ribs and the second ribs are configured to be received in the protruding part.

[0007] According to an exemplary embodiment of the utility model, a third rib is arranged on the outer surface of the first pipe fitting along the circumferential direction of the first pipe fitting, a stop block is arranged on the protruding part, and the stop block is configured to abut against the third rib.

[0008] According to an exemplary embodiment of the utility model, the front end of the stop block is a downward elbow.

[0009] According to an exemplary embodiment of the utility model, the third rib intersects with the first rib and the second rib.

[0010] According to an exemplary embodiment of the utility model, a groove is provided at the front end of the groove on the second pipe member, and a sealing ring is provided in the groove.

[0011] According to an exemplary embodiment of the utility model, the end face of the first pipe fitting includes a first retaining ring portion, and the second pipe fitting includes a second retaining ring portion, one side of the first retaining ring portion is configured to be in abutting contact with the protrusion, and the other side of the first retaining ring portion is configured to be in abutting contact with the second retaining ring portion.

[0012] According to an exemplary embodiment of the present invention, the bump may include one or more sub-bumps arranged at intervals.

[0013] According to an exemplary embodiment of the present utility model, the projection is provided with a plurality of raised edges in a direction toward the second pipe.

[0014] According to an exemplary embodiment of the present utility model, the end of the second pipe is a chamfered structure.

[0015] According to an exemplary embodiment of the present invention, the second pipe member includes a plurality of spacer blocks spaced apart along the second retaining ring portion, and the groove is defined by the plurality of spacer blocks and an end portion of the second pipe member.

[0016] According to an exemplary embodiment of the present utility model, the clamping component is integrally formed.

[0017] The utility model also discloses a pump, comprising: a pump body, comprising a fluid inlet and a fluid outlet; and a connecting assembly according to any exemplary embodiment of the utility model, wherein the connecting assembly is installed at the fluid outlet.

[0018] In the above exemplary embodiments of the utility model, compared with the prior art, two pipes are inserted and connected by the protrusion on the clamping member. Only one clamping member is needed in the connection assembly to realize the connection of two pipes, thereby reducing the complexity of the connection assembly. In addition, when the pressing rod on the clamping member is in a free state, the protrusion is in a locked state; when the pressing rod is pressed, the relative protrusion is spread apart to unlock the two pipes. Therefore, quick connection and disconnection can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The features, advantages and other aspects of the various embodiments of the present invention will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Several embodiments of the present invention are shown in an exemplary and non-limiting manner. In the accompanying drawings:

[0020] Figure 1Schematic diagram of the connection assembly 10 according to an embodiment of the present utility model;

[0021] Figure 2a Schematic diagram of the connection assembly 10 according to an embodiment of the present utility model in a connected state;

[0022] Figure 2b Cross-sectional view of the connection assembly 10 according to an embodiment of the present utility model in a connected state;

[0023] Figure 2c Partial cross-sectional view of the connection assembly 10 according to an embodiment of the present utility model in a connected state;

[0024] Figure 3a Stereogram of the snap-in member 300 according to an embodiment of the present utility model from a rear perspective;

[0025] Figure 3b For Figure 3a Left view of the schematically shown snap-in member 300;

[0026] Figure 3c For Figure 3a Front view of the schematically shown snap-in member 300;

[0027] Figure 4 Schematic diagram of the first pipe fitting 100 and the snap-in member 300 according to an embodiment of the present utility model in a connected state. Detailed implementation manners

[0028] The technical solutions of the present utility model will be further specifically described below through embodiments and in conjunction with the drawings. In the specification, the same or similar reference numerals indicate the same or similar components. The description of the embodiments of the present utility model with reference to the drawings below is intended to explain the overall inventive concept of the present utility model and should not be construed as a limitation on the present utility model.

[0029] As used herein, the terms "comprising", "including" and similar terms should be understood as open-ended terms, i.e., "including / including but not limited to", indicating that other contents may also be included. The term "based on" is "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment", and so on.

[0030] The installation operation of the connection assembly in the related art is inconvenient and there are many parts, making it impossible to disassemble and assemble quickly.

[0031] The present utility model mainly focuses on the following technical problem: how to provide a simple and quickly disassemblable and assemblable connection assembly.

[0032] To solve the above problems, according to a general concept of the present utility model, a connection assembly is provided, including: a first pipe fitting, a second pipe fitting, and a clamping member for connecting the first pipe fitting and the second pipe fitting. Among them, holes arranged along the circumferential direction are provided on the surface of the first pipe fitting, a groove is provided on the surface of the second pipe fitting, the clamping member includes a ferrule portion and a pressing portion, the ferrule portion is an annular structure and is configured to be sleeved at the connection of the first pipe fitting, the pressing portion includes a pair of pressing rods and a pair of elastic pieces arranged oppositely, the pair of pressing rods are configured to increase the distance between the pair of elastic pieces when being pressed, convex blocks protruding towards the inside of the clamping member are provided on both of the pair of elastic pieces, the convex blocks are chamfered structures in the direction towards the second pipe fitting, and the convex blocks are configured to pass through the holes and be embedded into the grooves.

[0033] Figure 1 FIG. shows a schematic structural diagram of a connection assembly 10 according to an embodiment of the present utility model. As Figure 1 shown, the connection assembly 10 includes a first pipe fitting 100, a second pipe fitting 200, and a clamping member 300 for connecting the first pipe fitting 100 and the second pipe fitting 200.

[0034] Holes 104 arranged along the circumferential direction of the pipe fitting are provided on the surface of the first pipe fitting 100. A groove 201 is provided on the surface of the second pipe fitting 200. The clamping member 300 can realize the clamping connection between the first pipe fitting 100 and the second pipe fitting by passing through the holes 104 and being embedded into the groove 201.

[0035] Figure 2a FIG. shows a schematic structural diagram of the connection assembly 10 in a connected state. Additionally, reference can also be made to Figure 1 , the clamping member 300 includes a ferrule portion 301 and a pressing portion 302. The ferrule portion 301 is an annular structure and can be sleeved at the connection of the first pipe fitting 100. The pressing portion 302 includes a pair of pressing rods 303 and a pair of elastic pieces 304 arranged oppositely. Specifically, the pair of pressing rods 303 extend along the circumferential direction of the clamping member and protrude at the top of the clamping member. As Figure 1 shown, the pressing rods 303 and the elastic pieces 304 are integral. In other words, when the pressing rods 303 are pressed, the elastic pieces 304 will be driven to move.

[0036] Figure 2b FIG. shows a cross-sectional view of the connection assembly 10 in a connected state. As Figure 2b shown, at the connection of the two pipe fittings, the inner diameter of the first pipe fitting 100 is greater than the outer diameter of the second pipe fitting 200, so that the first pipe fitting 100 can accommodate the second pipe fitting 200. The clamping member 300 can clamp and connect the first pipe fitting 100 and the second pipe fitting 200.

[0037] According to Figure 1 , convex blocks 305 protruding towards the inside of the clamping member 300 are provided on both of the pair of elastic pieces 304. Figure 2cA partial cross-sectional view of the connecting component 10 in the connected state is shown. As Figure 2c shown, the bump 305 can pass through the hole 104 and be embedded into the groove 201.

[0038] Figure 3a A perspective view of the clamping member 300 from the rear view is shown. As Figure 3a shown, a pair of elastic pieces 304 extend along the circumferential direction of the clamping member and are separated at the bottom of the clamping member. The protruding parts of a pair of pressing rods 303 can be subjected to opposite forces, that is, the protruding parts of a pair of pressing rods can be squeezed, thereby driving a pair of elastic pieces 304 to move to expand them. In other words, a pair of pressing rods 303 can increase the distance between a pair of elastic pieces 304 when pressed.

[0039] Figure 3b Shows Figure 3a The left view of. Figure 3c Shows Figure 3a The front view of. According to Figure 2a And 3b , the ferrule part 301 and the pressing part 302 are integrated at the top and separated at the bottom. After a pair of elastic pieces 304 are expanded by force, they can be fixed on the first pipe fitting 100.

[0040] In some examples, the second pipe fitting 200 can be first inserted into the first pipe fitting 100, the hole 104 on the first pipe fitting 100 and the groove 201 on the second pipe fitting 200 are aligned, then the clamping member 300 is fixed on the first pipe fitting 100, and finally the bump 305 passes through the hole 104 and is embedded into the groove 201 to achieve connection. In this example, only three components are needed in the connecting component to achieve connection, so the complexity of the connecting component can be reduced.

[0041] In some other examples, the first pipe fitting 100 and the clamping member 300 can be first connected to form a combination, and then the second pipe fitting 200 is inserted into the combination. Figure 4 A schematic structural diagram of the first pipe fitting 100 and the clamping member 300 in the connected state is shown. In this way, during the process of inserting the second pipe fitting 200 into the combination of the first pipe fitting 100 and the clamping member 300, the front end of the first pipe fitting 200 contacts and squeezes the bump 305, pushing the bump 305 to both sides until the groove 201 reaches the bump 305 and is embedded and connected with it, and finally the connection of the connecting component is completed. In addition, reference can be made to Figure 2c , Figure 3a And Figure 4 , the bump 305 of the clamping member 300 has a chamfer structure in the direction towards the second pipe fitting. This chamfer structure helps the insertion of the second pipe fitting 200 to achieve quick connection.

[0042] In the free state, the pair of pressing rods 303 and the pair of spring pieces 304 can clamp the first pipe 100 and the second pipe 200. When the first pipe 100 and the second pipe 200 need to be decoupled, the pair of spring pieces 304 can be spread apart by pinching the pair of pressing rods 303, and the protrusion 305 can be separated from the second pipe 200 to achieve quick disconnection.

[0043] exist Figure 1 In the example, the number of protrusions on each spring sheet is one. In some other examples, the number of protrusions on each spring sheet may be multiple. For example, two sub-protrusions are arranged at intervals on each spring sheet. In addition, Figure 3a and 3c As shown, the projection 305 is provided with a plurality of raised edges in the direction toward the second pipe member, that is, on the chamfered structure. These edges can reduce the friction force during the insertion of the second pipe member 200.

[0044] In some examples, the outer surface of the first tube 100 is provided with a first rib 101 and a second rib 102 arranged along the axial direction of the first tube. Correspondingly, the clamping member 300 is provided with a protrusion 306, and the first rib 101 and the second rib 102 can be accommodated in the protrusion 306. Figure 1 The first rib 101 and the second rib 102 are arranged in parallel and spaced apart. Figure 1 , Figure 2b , Figure 3a and Figure 4 , the protrusion 306 spans the ring portion 301 and the pressing portion 302, that is, the protrusion 306 protrudes on both the ring portion 301 and the pressing portion 302. The protrusion 306 includes a top wall and two oppositely arranged side walls, and the internal space of the protrusion can accommodate the above-mentioned two ribs. Specifically, when the clamping part and the first pipe fitting are combined, the height of the internal space of the protrusion 306 is slightly higher than the height of the first rib 101 and the second rib 102. The width of the internal space of the protrusion 306 is slightly larger than the distance between the outer side of the first rib 101 and the outer side of the second rib 102. The protrusion 306 fixes the first rib 101 and the second rib 102 to the circumferential upper limit of the connecting component 10.

[0045] In some examples, the outer surface of the first pipe 100 is provided with a third rib 103 arranged along the circumference of the first pipe 100. Correspondingly, a stopper 307 is provided on the protrusion 306, and the stopper 307 is located on the side facing the first pipe 100. Figure 1In the example, both sides of the stopper 307 are notches formed on the protruding portion 306. The stopper 307 can abut against the third rib 103. The stopper 307 abutting against the third rib 103 can mean that the two overlap in the height direction. In some examples, the height of the third rib 103 can be higher than that of the first rib 101 and the second rib 102, so that it can abut against the front end of the stopper. In some other examples, reference can be made to Figure 1 , Figure 2b and Figure 3c , the height of the rib 103 can be equal to the height of the first rib 101 and the second rib 102, and the front end of the stopper 307 is a downward elbow, and the downward elbow abuts against the third rib. The third rib 103 abutting against the stopper 307 can enhance the axial limit of the connecting assembly 10.

[0046] As Figure 1 shown, the third rib 103 can intersect with the first rib 101 and the second rib 102. The first rib 101 and the second rib 102 extend axially from the end of the first pipe fitting 100. The first rib 101, the second rib 102 and the third rib 103 form a three-sided wall. This setting can simplify the preparation process of the pipe fitting while achieving the limit.

[0047] Now refer to Figure 1 and Figure 2b , the end face of the first pipe fitting 100 includes a first retaining ring portion 105. The second pipe fitting 200 includes a second retaining ring portion 204. One side of the first retaining ring portion 105 can abut against the protruding portion 306 in contact, and the other side of the first retaining ring portion 105 can abut against the second retaining ring portion 204 in contact.

[0048] As Figure 1 shown, the end 206 of the second pipe fitting 200 is a chamfered structure. The setting of the chamfered structure here is beneficial to guiding the insertion of the second pipe fitting. In addition, the second pipe fitting includes a plurality of spacer blocks 205 arranged at intervals along the second retaining ring portion 204. The positions of the spacer blocks 205 correspond to the positions of the bumps 305. The groove 201 is defined by the end 206 and the spacer blocks 205. The spaced arrangement of the spacer blocks 205 can reduce the weight of the second pipe fitting 200.

[0049] In some examples, the surface of the second pipe fitting can be provided with grooves to accommodate the sealing ring. Reference can be made to Figure 1 , Figures 2b - 2c , a ring of grooves 202 is provided at the front end of the second pipe fitting 200, and a sealing ring 203 can be provided in the grooves 202 to improve the sealing performance of the connecting assembly 10.

[0050] In some examples, the clamping member 300 can be integrally formed of an elastic material such as plastic.

[0051] The connection component of the present utility model can be applied to various scenarios, such as a connection component for a pump. The present utility model also discloses a pump, which includes a pump body and the connection component of any one of the embodiments of the present utility model. The pump body includes a fluid inlet and a fluid outlet, and the connection component can be installed at the fluid inlet and / or the fluid outlet. For example, the first pipe fitting 100 can be threadedly connected to the fluid outlet of the pump, and the second pipe fitting 200 is threadedly connected to other external pipe fittings or a base.

[0052] The above are only optional embodiments of the embodiments of the present utility model and are not used to limit the embodiments of the present utility model. For those skilled in the art, various changes and modifications can be made to the embodiments of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present utility model shall be included in the protection scope of the embodiments of the present utility model.

[0053] Although the embodiments of the present utility model have been described with reference to several specific embodiments, it should be understood that the embodiments of the present utility model are not limited to the specific embodiments disclosed. The embodiments of the present utility model are intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. The scope of the appended claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.

Claims

1. A connection assembly, characterized in that: include: A first pipe, a second pipe and a clamping member connecting the first pipe and the second pipe, wherein: The surface of the first pipe is provided with holes arranged along the circumferential direction, and the surface of the second pipe is provided with grooves; The clamping member includes a collar portion and a pressing portion, wherein the collar portion is an annular structure and is configured to be sleeved on the connection of the first pipe member, and the pressing portion includes a pair of pressing rods and a pair of spring sheets arranged opposite to each other, wherein the pair of pressing rods are configured to increase the distance between the pair of spring sheets when pressed, and the pair of spring sheets are each provided with a protrusion protruding toward the inside of the clamping member, and The protrusion is a chamfered structure in a direction toward the second tube, and the protrusion is configured to pass through the hole and be embedded in the groove.

2. The connection assembly according to claim 1, characterized in that: The outer surface of the first pipe is provided with a first convex rib and a second convex rib arranged along the axial direction of the first pipe, the clamping member is provided with a protruding portion, and the first convex rib and the second convex rib are configured to be accommodated in the protruding portion.

3. The connection assembly according to claim 2, characterized in that: The outer surface of the first pipe is provided with a third rib arranged along the circumference of the first pipe, and a stopper is provided on the protruding portion, and the stopper is configured to abut against the third rib.

4. The connection assembly according to claim 3, characterized in that: The front end of the stopper is a downward elbow.

5. The connection assembly according to claim 3, characterized in that: The third rib intersects the first rib and the second rib.

6. The connection assembly according to claim 1, characterized in that: A groove is provided at the front end of the slot on the second pipe member, and a sealing ring is provided in the groove.

7. The connection assembly according to claim 1, characterized in that: The end surface of the first pipe member includes a first retaining ring portion, and the second pipe member includes a second retaining ring portion. One side of the first retaining ring portion is configured to be in abutting contact with the protrusion, and the other side of the first retaining ring portion is configured to be in abutting contact with the second retaining ring portion.

8. The connection assembly according to claim 1, characterized in that: The bump may include one or more sub-bumps arranged at intervals.

9. The connection assembly according to claim 1, characterized in that: The projection is provided with a plurality of raised edges in a direction toward the second tube.

10. The connection assembly according to claim 1, characterized in that The end of the second pipe is a chamfered structure.

11. The connection assembly according to claim 1, characterized in that The second pipe member includes a plurality of spacer blocks spaced apart along the second retaining ring portion, and the groove is defined by the plurality of spacer blocks and an end portion of the second pipe member.

12. The connection assembly according to claim 1, characterized in that The clamping piece is integrally formed.

13. A pump, characterized in that: include: A pump body including a fluid inlet and a fluid outlet; And a connection assembly according to any one of claims 1 to 12, wherein the connection assembly is mounted on the fluid outlet.

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