Fixing device for quick coupling

Abstract

The utility model provides a fixing device for a quick connector. The quick connector comprises a liquid inlet pipe and a liquid outlet pipe which are connected together in a sleeved mode. Wherein the liquid outlet pipe is provided with at least two clamping assemblies, and the clamping assemblies are used for limiting the relative movement of the liquid inlet pipe and the liquid outlet pipe in the axial direction. The fixing assemblies are used for being connected with the clamping assemblies, the connecting assembly is arranged between the two fixing assemblies and used for connecting the two fixing assemblies into a whole, and the fixing assemblies and the connecting assembly are jointly used for limiting the radial movement of the clamping assemblies. In this way, the liquid inlet pipe and the liquid outlet pipe can be relatively fixed. Therefore, the technical problem that in the prior art, the liquid inlet pipe and the liquid outlet pipe are prone to being separated due to the external acting force, and fluid leakage is caused is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fixing a quick connector, and in particular relates to a fixing device for a quick connector. Background Art

[0002] In the prior art, such as Figure 1 As shown, when adding liquid to the tank body 10, the infusion pump 30 for conveying fluid is often connected to the tank body 10 through the quick connector 20, thereby forming a passage for fluid movement, which is used to achieve the operation of adding liquid into the tank body.

[0003] The quick connector 20 includes a liquid inlet pipe 202 and a liquid outlet pipe 201 which are sleeved together, and at least two clamping components 205 are provided on the liquid outlet pipe 201 to limit the axial movement of the liquid inlet pipe 202 and the liquid outlet pipe 201. In this way, the liquid inlet pipe 202 and the liquid outlet pipe 201 can be stably connected together in the axial direction, so as to stably transport the fluid.

[0004] In this arrangement, although the operation of adding liquid into the tank body 10 can be realized, during the liquid adding process, the clamping assembly 205 is easily moved in the radial direction due to the external force, so that the clamping assembly 205 is loosened. As a result, the liquid inlet pipe 202 and the liquid outlet pipe 201 are easily separated from each other under the external force, resulting in a technical problem of fluid leakage. Utility Model Content

[0005] In order to overcome at least one or more of the above-mentioned defects in the prior art, the utility model provides a fixing device for a quick connector, wherein the quick connector comprises a liquid inlet pipe and a liquid outlet pipe which are sleeved together.

[0006] Wherein, at least two clamping assemblies are arranged on the liquid outlet pipe, which are used to limit the axial movement of the liquid inlet pipe and the liquid outlet pipe.

[0007] The device also includes a fixing assembly for connecting with the engaging assembly, and a connecting assembly arranged between the two fixing assemblies for connecting the two fixing assemblies into one body. The fixing assembly and the connecting assembly are used together to limit the radial movement of the engaging assembly.

[0008] In one embodiment, a through hole is provided on the engaging assembly, and the fixing assembly includes a fixing rod and a fixing head provided at a free end of the fixing rod and configured to extend into the through hole.

[0009] In one embodiment, the fixing head is configured as a columnar structure extending radially inwardly along the end surface of the fixing rod, thereby forming a limiting step for abutting against the locking assembly.

[0010] In one embodiment, the connection assembly includes a connection rod and connection heads respectively arranged at two ends of the connection rod, and the connection heads are configured to be connected to the fixing rod in a hinged manner.

[0011] In one embodiment, the device further comprises an adjusting component disposed between the two fixing components, for adjusting a radial distance formed by the two fixing components.

[0012] In one embodiment, the adjustment assembly includes two spiral rods respectively connected to the fixing assembly and extending radially inward, and a screwing portion disposed between the two spiral rods and cooperating with the spiral rods, wherein the screwing portion is configured to drive the spiral rods to move radially inward or radially outward.

[0013] In one embodiment, the spiral rods are disposed on the fixing assembly in an opposing manner and extend radially inwardly but do not abut against each other.

[0014] In one embodiment, the screwing portion is configured to be hollow, so as to form a space for the two spiral rods to move radially inward.

[0015] In one embodiment, the adjustment assembly is disposed on the opposite side of the fixing head.

[0016] In one embodiment, the adjustment assembly is arranged on the same side of the fixing head.

[0017] In general, the above technical solutions conceived by the utility model can achieve the following beneficial effects compared with the prior art:

[0018] In the utility model, a liquid inlet pipe and a liquid outlet pipe are provided which are sleeved together, and the liquid inlet pipe and the liquid outlet pipe are connected to each other respectively. Among them, at least two clamping components are provided on the liquid outlet pipe, and the clamping components can be used to limit the axial movement of the liquid inlet pipe and the liquid outlet pipe. At the same time, a fixed component connected to each clamping component and a connecting component used to connect each fixed component into one are also provided, and the fixed component and the connecting component are used together to limit the radial movement of the clamping component. In this way, the liquid inlet pipe and the liquid outlet pipe can be relatively fixed. Thus, the technical problem that the liquid inlet pipe and the liquid outlet pipe are easily separated due to external forces in the prior art, resulting in fluid leakage, is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, in which:

[0020] Figure 1 The overall structure of the quick connector is schematically shown;

[0021] Figure 2 The overall structure of the fixing device for a quick connector according to the utility model is schematically shown.

[0022] It should be noted that the drawings are not necessarily drawn according to actual scale.

[0023] In all the drawings, the same reference numerals represent the same technical features, specifically: 10-tank body; 20-quick connector; 201-liquid outlet pipe; 202-liquid inlet pipe; 203-sleeve; 204-connector; 205-clamping assembly; 2051-connecting part; 2052-limiting part; 2053-through hole; 30-infusion pump; 100-fixing device for quick connector; 1-fixing assembly; 11-fixing rod; 12-fixing head; 13-limiting step; 2-connecting assembly; 21-connecting rod; 22-connecting head; 3-adjusting assembly; 31-screw rod; 32-screwing part. DETAILED DESCRIPTION

[0024] In order to better understand the purpose, structure and function of the utility model, the following is a further detailed description of a fixing device for a quick connector of the utility model in conjunction with the accompanying drawings.

[0025] like Figure 1 As shown, the quick connector 20 includes a liquid outlet pipe 201 for communicating with the tank body 10, and a liquid inlet pipe 202 for communicating with the infusion pump 30. The liquid inlet pipe 202 and the liquid outlet pipe 201 are both configured to be hollow.

[0026] Among them, on the liquid outlet pipe 201, a sleeve 203 extends radially outward along the end of the liquid outlet pipe 201. On the liquid inlet pipe 202, a joint 204 extends radially outward along the end of the liquid inlet pipe 202. The sleeve 203 and the joint 204 are configured to be able to be mutually sleeved together, thereby forming a channel for fluid movement. In this way, the fluid from the infusion pump 30 can move along the channel into the tank body 10, thereby realizing the liquid addition operation.

[0027] At the same time, if Figure 1 As shown, a clamping assembly 205 is also provided on the sleeve 203, and the clamping assembly 205 is used to connect the liquid outlet pipe 201 and the liquid inlet pipe 202. The clamping assembly 205 includes a connecting portion 2051 provided on the sleeve 203 and movably connected to the sleeve 203, and a limiting portion 2052 provided at the free end of the connecting portion 2051 and extending radially inward.

[0028] In this way, the connecting portion 2051 and the limiting portion 2052 together form an "L" shape. The limiting portion 2052 is configured to abut against the joint 204 in the axial direction. In this way, the liquid outlet pipe 201 and the liquid inlet pipe 202 can be relatively fixed together, thereby forming a passage for fluid movement. Preferably, two of the clamping assemblies 205 are provided and distributed on both sides of the sleeve 203 in a corresponding manner. In this way, the liquid outlet pipe 201 and the liquid inlet pipe 202 can be further connected together.

[0029] In addition, if Figure 1 As shown, a through hole 2053 is further provided on the limiting portion 2052, and a fixing device for fixing the clamping assembly 205 can be selectively provided in the through hole 2053. In this way, the clamping assembly 205 can be fixed, thereby preventing the clamping assembly 205 from loosening during use, causing the liquid outlet pipe 201 to be separated from the liquid inlet pipe 202, and causing fluid leakage.

[0030] In this arrangement, when in use, the liquid outlet pipe 201 and the liquid inlet pipe 202 are connected to the tank body 20 and the infusion pump 30 respectively, and the joint 204 on the liquid inlet pipe 202 is sleeved in the sleeve 203. At the same time, the clamping assembly 205 is arranged to be able to abut against the joint 204. In this way, the assembly of the liquid outlet pipe 201 and the liquid inlet pipe 202 is completed. It should be noted that a fixing device can be selectively arranged in the through hole 2053 located in the clamping assembly 205, so that the liquid outlet pipe 201 and the liquid inlet pipe 202 are stably connected together.

[0031] Then, the infusion pump 30 is turned on. At this time, the fluid from the infusion pump 30 will move into the tank body 10 along the fluid movement channel formed by the inlet pipe 202 and the outlet pipe 201. Thus, the tank body 10 is filled with liquid. It should be noted that the structures of the tank body 10, the quick connector 20 and the infusion pump 30 are well known to those skilled in the art.

[0032] Figure 2 The overall structure of the fixing device 100 for a quick connector according to the present invention is schematically shown. Figure 2 In the illustrated embodiment, the fixing device 100 for the quick connector includes a fixing assembly 1 , wherein two fixing assemblies 1 are provided and each of the fixing assemblies 1 is configured to be able to be inserted into the through hole 2053 .

[0033] At the same time, if Figure 2As shown, the device 100 further includes a connecting component 2, which is arranged between the two fixing components 1 and is used to connect the two fixing components 1 together. The axial length of the connecting component 2 is equivalent to the relative distance between the two through holes 2053. In this way, the two fixing components 1 can be respectively inserted into the two through holes 2053, thereby limiting the movement of the clamping component 205. In this way, it is possible to avoid the clamping component 205 and the liquid inlet pipe 202 from being separated from each other during use, causing the liquid outlet pipe 201 and the liquid inlet pipe 202 to be separated from each other, thereby causing fluid leakage.

[0034] In one embodiment, Figure 2 As shown, the fixing assembly 1 includes a fixing rod 11 and a fixing head 12 arranged at the free end of the fixing rod 11 for matching with the through hole 2053. The fixing head 12 is arranged as a columnar structure extending radially inward along the end surface of the fixing rod 11.

[0035] In this way, a limiting step 13 is formed between the fixing head 12 and the fixing rod 11. The limiting step 13 is configured to abut against the locking assembly 205 to limit the axial movement of the fixing assembly 1, thereby preventing the fixing assembly 1 from continuously moving along the through hole 2053.

[0036] In one embodiment, Figure 2 As shown, the connecting assembly 2 includes a connecting rod 21 and connecting heads 22 respectively arranged at both ends of the connecting rod 21. The connecting head 22 is configured to be connected to the fixing assembly 1 in an articulated manner. Specifically, the fixing assembly 1 can move radially inward or radially outward around the connecting head 22.

[0037] In this way, when a radially inward or radially outward force is applied to the fixing assembly 1, the radial distance formed between the two fixing assemblies 1 can be adjusted. In this arrangement, the radial distance formed between the two fixing assemblies 1 can be directionally adjusted according to the difference in radial distance between the two engaging assemblies 205, so that the device can be applicable to quick connectors 20 of different specifications. Thus, the applicability of the device 100 can be improved.

[0038] In one embodiment, Figure 2 As shown, the device 100 further includes an adjustment component 3, which is disposed between the two fixing components 1 and is used to adjust the radial distance formed by the two fixing components 1. Figure 2 As shown, the adjustment assembly 3 includes a spiral rod 31, and the spiral rod 31 is provided in two and is respectively located at the radial inner side of the two fixing assemblies 1. One end of the spiral rod 31 is connected to the fixing assembly 1, and the other end extends radially inward.

[0039] It should be noted that if Figure 2 As shown, the two screw rods 31 are arranged opposite to each other and extend radially inwards without abutting each other. In this way, a space for radial inward movement is formed between the two screw rods 31. Thus, the two screw rods 31 can move radially inwards within the range of the space, thereby adjusting the radial distance formed by the two fixing components 1.

[0040] At the same time, if Figure 2 As shown, the adjustment assembly 3 further includes a screwing portion 32, which is disposed between the two screw rods 31 and respectively forms a threaded fit with the screw rods 31. The screwing portion 32 is hollow and is used to form a space for the two screw rods 31 to move radially inward. Thus, the two screw rods 31 can be driven to move synchronously by screwing the screwing portion 32, thereby adjusting the radial distance formed by the two fixing assemblies 1.

[0041] According to a preferred embodiment of the present invention, Figure 2 As shown, the adjusting component 3 is arranged below the connecting component 2. Specifically, the adjusting component 3 is arranged on the opposite side of the fixing head 12. In this arrangement, a lever can be formed between the fixing component 1 and the connecting component 2, and the adjusting component 3 can apply a force to the lever.

[0042] When a force is applied to the screwing portion 32 to cause the two spiral rods 31 to move radially inward, the radial distance between the free ends of the two fixing components 1 will gradually increase, so that the device 100 can be applied to the quick connector 20 with a large radial distance.

[0043] However, when a force is applied to the screwing portion 32 so that the two screw rods 31 move radially outward, the radial distance formed between the free ends of the two fixing components 1 will gradually decrease, so that the device 100 can be applied to the quick connector 20 with a small radial distance. It should be noted that the adjustment component 3 can also be arranged on the same side of the fixing head 12. In this arrangement, the movement direction of the fixing component 1 and the adjustment direction of the adjustment component 3 are opposite to the above operation.

[0044] The operation of the fixing device 100 for a quick connector according to the present invention is as follows.

[0045] First, the liquid outlet pipe 201 and the liquid inlet pipe 202 are connected to the tank body 20 and the infusion pump 30 respectively, and the joint 204 on the liquid inlet pipe 202 is sleeved in the sleeve 203. At the same time, the clamping assembly 205 is configured to abut against the joint 204 in the axial direction, thereby limiting the axial movement of the quick connector 20.

[0046] Secondly, the fixing component 1 is connected to the clamping component 205, and the two fixing heads 12 are respectively inserted into the through holes 2053. In this way, a lever can be formed between the fixing component 1 and the connecting component 2, and the adjusting component 3 can apply a force to the lever.

[0047] Then, a force is applied to the screwing portion 32, so that the two screw rods 31 move radially outward. In this process, the two screw rods 31 will respectively pull the two limit rods 21 connected to the adjustment component 3 to move radially inward, thereby urging the clamping component 205 to move radially inward. In this way, the clamping component 205 can be fixed, thereby preventing the clamping component 205 and the liquid inlet pipe 202 from being separated from each other during use, causing the liquid outlet pipe 201 and the liquid inlet pipe 202 to separate from each other, thereby causing fluid leakage.

[0048] Finally, the infusion pump 30 is turned on. At this time, the fluid from the infusion pump 30 will move into the tank body 10 along the fluid movement channel formed by the inlet tube 202, the connecting part 203 and the outlet tube 201. Thus, the tank body 10 is filled with liquid.

[0049] However, when using quick connectors of different specifications, the radial distance formed by the two fixing components 1 can be adjusted by applying force to the screwing portion 32, so that the device can be applicable to quick connectors 20 of different specifications. Thus, the applicability of the device 100 can be improved.

[0050] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A fixing device for a quick connector, the quick connector (20) comprising a liquid inlet pipe (202) and a liquid outlet pipe (201) which are sleeved together. in, At least two engaging assemblies (205) are provided on the liquid outlet pipe (201) and are used to restrict the axial movement of the liquid inlet pipe (202) and the liquid outlet pipe (201). The device is characterized in that it further comprises a fixing component (1) for connecting to the snap-fit ​​component (205), and a connecting component (2) arranged between the two fixing components (1) for connecting the two fixing components (1) into one, wherein the fixing component (1) and the connecting component (2) are used together to limit the radial movement of the snap-fit ​​component (205).

2. The fixing device for a quick connector according to claim 1, characterized in that: A through hole (2053) is provided on the snap-fit ​​assembly (205), and the fixing assembly (1) comprises a fixing rod (11) and a fixing head (12) provided at a free end of the fixing rod (11) and configured to extend into the through hole (2053).

3. The fixing device for a quick connector according to claim 2, characterized in that: The fixing head (12) is configured as a columnar structure extending radially inwardly along the end surface of the fixing rod (11), thereby forming a limiting step (13) for abutting against the locking assembly (205).

4. The fixing device for a quick connector according to claim 3, characterized in that: The connection assembly (2) comprises a connection rod (21) and connection heads (22) respectively arranged at two ends of the connection rod (21); the connection heads (22) are configured to be connected to the fixing rod (11) in a hinged manner.

5. The fixing device for a quick connector according to claim 4, characterized in that: The device further comprises an adjusting component (3) arranged between the two fixing components (1) and used for adjusting the radial distance formed by the two fixing components (1).

6. The fixing device for a quick connector according to claim 5, characterized in that: The adjusting assembly (3) comprises two screw rods (31) respectively connected to the fixing assembly (1) and extending radially inwards, and a screwing portion (32) arranged between the two screw rods (31) and cooperating with the screw rods (31), wherein the screwing portion (32) is configured to be able to drive the screw rod (31) to move radially inwards or radially outwards.

7. The fixing device for a quick connector according to claim 6, characterized in that: The spiral rods (31) are arranged on the fixing assembly (1) in a relative manner and extend radially inwards but do not abut against each other.

8. The fixing device for a quick connector according to claim 7, characterized in that: The screwing portion (32) is configured to be hollow, and is used to form a space for the two screw rods (31) to move radially inwards.

9. The fixing device for a quick connector according to any one of claims 5 to 8, characterized in that: The adjustment component (3) is arranged on the opposite side of the fixed head (12).

10. The fixing device for a quick connector according to any one of claims 5 to 8, characterized in that: The adjustment assembly (3) is arranged on the same side of the fixed head (12).

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