Quick connecting structure for inflatable chuck

Abstract

The utility model discloses a quick -witted structure for inflatable chuck, including the chuck body, the chuck body is equipped with the connecting head of butt joint, the chuck body is equipped with two groups of clamping components for fixing the connecting head in the symmetry, the chuck body inner wall is equipped with two groups of air inlet and air outlet, and the air inlet and air outlet of same side intercommunication, the air bag is installed in the chuck body, the air bag is linked with two groups of air outlet, the utility model discloses the fixed ring and the gasket of chuck inner wall closely fit in the connecting head insertion process, and the first static mechanical seal is formed, and effectively blocks gas or liquid and leaks from the initial contact surface, subsequently, when the gas pump starts, the gas fills the air bag through the air inlet and the air outlet, makes it swell and extrude the connecting head outer wall, forms the second dynamic seal, not only makes up the clearance problem of traditional mechanical seal because of abrasion or assembly error, can also adaptively adjust the sealing degree when pressure changes.

Description

Technical Field

[0001] This utility model relates to the field of chuck technology, specifically a quick-connect structure for an inflatable chuck. Background Technology

[0002] In the utility model patent application CN211843987U, published on November 3, 2020, entitled "Inflatable Clamp", this utility model discloses an inflatable clamp, belonging to the technical field of inflatable devices. The key technical features are: an inflatable clamp comprising a clamp body, a clamping component, a control component, and an outer sleeve; the outer sleeve is fitted over the clamp body and axially movable with it; the clamp body has an air inlet and an air outlet, and an inflation channel is provided in the middle of the clamp body, passing through both the air inlet and outlet; a guide groove is provided on the clamp body, the clamping component is placed in the guide groove, and the control component can control the displacement of the clamping component within the guide groove, at least in the radial direction; the clamping component is rod-shaped, with guide ends at both ends and a clamping portion in the middle, and at least two clamping teeth formed on the side of the clamping portion facing the inflation channel.

[0003] In the aforementioned patents or prior art, traditional inflatable clamps are typically installed using threaded connections. Threaded installation requires manual rotation of multiple turns, which is time-consuming and labor-intensive, and cannot achieve quick insertion and removal. Furthermore, threaded connections are prone to loosening under vibration and accelerate thread wear, and are prone to leakage after long-term use. Utility Model Content

[0004] The purpose of this invention is to provide a quick-connect structure for an inflatable clamp to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-connect structure for an inflatable chuck, comprising a chuck body, wherein the chuck body is provided with a connectable connector, and two sets of snap-fit ​​components for fixing the connector are symmetrically provided within the chuck body. The inner wall of the chuck body is symmetrically provided with two sets of air inlets and air outlets, and the air inlets and air outlets on the same side are connected. An airbag is installed within the chuck body, and the airbag is connected to the two sets of air outlets.

[0006] Furthermore, the snap-fit ​​assembly includes first grooves symmetrically formed at both ends of the inner wall of the protruding portion of the clamp body, and movable snap-fit ​​blocks are provided in the first grooves.

[0007] Furthermore, one end of the card block is fixedly connected to a lever, and the other end is provided with a reset component.

[0008] Furthermore, the sidewall of the chuck body is symmetrically provided with a second groove that communicates with the first groove, and the paddle is slidably disposed in the second groove.

[0009] Furthermore, the reset assembly includes a spring, one end of which is fixed to the bottom of the inner wall of the second groove, and the other end of which is connected to a fixing plate, the fixing plate being fixedly connected to the locking block.

[0010] Furthermore, the inner wall of the chuck body is provided with a gasket, which is sealed to the fixing ring on the connector.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the quick-connect structure for the inflatable chuck is reasonable and has the following advantages: (1) The quick-connect structure greatly improves the sealing performance between the connector and the clamp body through the dual design of mechanical seal and dynamic gas seal. First, during the insertion of the connector, its fixing ring and the gasket on the inner wall of the clamp are tightly fitted to form the first static mechanical seal, which effectively prevents gas or liquid from leaking from the initial contact surface. Then, when the air pump is started, the gas is filled into the air bag through the air inlet and air outlet, which expands and squeezes the outer wall of the connector to form the second dynamic seal. This dynamic seal not only makes up for the gap problem caused by wear or assembly error of traditional mechanical seal, but also adaptively adjusts the sealing force when the pressure changes. In addition, the elastic deformation of the air bag can compensate for the small displacement of the connector and avoid the seal failure caused by vibration or temperature change. (2) The structure achieves a combination of mechanical locking and pneumatic clamping through the synergistic effect of the snap-fit ​​component and the airbag. When the connector is inserted into place, the snap-fit ​​block automatically pops out under the action of the spring's reset force and snaps into the fixing ring groove of the connector to form a rigid mechanical limit and prevent axial displacement. At the same time, the radial pressure generated after the airbag is inflated further clamps the outer wall of the connector. The combination of the two increases the pull-out resistance. In addition, the spring design of the reset component gives the snap-fit ​​block a buffer function, avoiding rigid impact damage to the sealing surface during insertion and extending the service life. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the connector structure of this utility model; Figure 3 This is a schematic diagram of the structure of the chuck body of this utility model; Figure 4 This is a cross-sectional structural diagram of the mating of the clamp body and the connector of this utility model; Figure 5 This is a structural schematic diagram of the cross-section of the chuck body of this utility model; Figure 6 This is a schematic diagram of the snap-fit ​​assembly of this utility model.

[0013] In the diagram: 100, chuck body; 101, gasket; 102, first groove; 103, locking block; 104, fixing plate; 105, spring; 106, second groove; 107, lever; 108, air inlet; 109, air outlet; 110, airbag; 200, connector. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-6 The present invention provides a technical solution as follows: Example 1: A quick-connect structure for an inflatable chuck includes a chuck body 100, a connector 200 for mating inside the chuck body 100, two sets of snap-fit ​​components for fixing the connector 200 symmetrically arranged inside the chuck body 100, two sets of air inlets 108 and air outlets 109 symmetrically arranged on the inner wall of the chuck body 100, with the air inlets 108 and air outlets 109 on the same side communicating with each other, and an airbag 110 installed inside the chuck body 100, the airbag 110 communicating with the two sets of air outlets 109.

[0016] The snap-fit ​​assembly includes first grooves 102 symmetrically formed at both ends of the inner wall of the protruding part of the clamp body 100, and a movable snap-fit ​​block 103 is provided in the first groove 102.

[0017] One end of the card block 103 is fixedly connected to the lever 107, and the other end is provided with a reset component.

[0018] The chuck body 100 has a second groove 106 symmetrically formed on its side wall, which communicates with the first groove 102, and the paddle 107 is slidably disposed in the second groove 106.

[0019] The reset assembly includes a spring 105, one end of which is fixed to the bottom of the inner wall of the second groove 106, and the other end of which is connected to a fixing plate 104. The fixing plate 104 is fixedly connected to the locking block 103.

[0020] The inner wall of the chuck body 100 is provided with a gasket 101, which is sealed to the fixing ring on the connector 200.

[0021] Working principle: In use, the connector 200 is inserted into the chuck body 100. The retaining ring on it initially contacts the gasket 101 on the inner wall of the chuck, forming the first seal. The inserted end of the connector 200 pushes the locking block 103 back into the first groove 102, compressing the spring 105 of the reset assembly. When the connector 200 is fully inserted, the locking block 103 pops out under the reset force of the spring 105, limiting the retaining ring on the connector 200. The end of the connector 200 away from the chuck body 100 is connected to an air pump through a hose, and air is delivered to the chuck body through the connector 200. Within 100, the gas inside the chuck body 100 flows into the air outlet 109 through the air inlet 108 and finally enters the air bladder 110. After the air bladder 110 expands, it squeezes the outer wall of the connector 200 to form a second dynamic seal, while increasing the clamping force to prevent loosening. After the air supply is stopped, the gas inside the air bladder 110 is discharged through the air outlet 109 and the air inlet 108, returning to its original state for easy connection next time. The user presses the two side levers 107, which, through the lever action, causes the locking block 103 to retract into the first groove 102, thereby releasing the mechanical lock. The connector 200 can then be pulled out under external force.

[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A quick-connect structure for an inflatable chuck, comprising a chuck body (100), characterized in that: The chuck body (100) is provided with a connector (200) that can be connected. The chuck body (100) is provided with two sets of snap-fit ​​components for fixing the connector (200) symmetrically. The inner wall of the chuck body (100) is provided with two sets of air inlets (108) and air outlets (109) symmetrically, and the air inlets (108) and air outlets (109) on the same side are connected. An airbag (110) is installed in the chuck body (100), and the airbag (110) is connected to the two sets of air outlets (109).

2. The quick-connect structure for an inflatable chuck according to claim 1, characterized in that: The snap-fit ​​assembly includes a first groove (102) symmetrically opened at both ends of the inner wall of the protruding part of the clamp body (100), and a movable snap-fit ​​block (103) is provided in the first groove (102).

3. The quick-connect structure for an inflatable chuck according to claim 2, characterized in that: The card block (103) is fixedly connected to the lever (107) at one end, and a reset component is provided at the other end.

4. The quick-connect structure for an inflatable chuck according to claim 3, characterized in that: The chuck body (100) has a second groove (106) symmetrically opened on the side wall, which communicates with the first groove (102), and the paddle (107) is slidably disposed in the second groove (106).

5. The quick-connect structure for an inflatable chuck according to claim 4, characterized in that: The reset assembly includes a spring (105), one end of which is fixed to the bottom of the inner wall of the second groove (106), and the other end of which is connected to a fixing plate (104). The fixing plate (104) is fixedly connected to the locking block (103).

6. The quick-connect structure for an inflatable chuck according to claim 1, characterized in that: The inner wall of the chuck body (100) is provided with a gasket (101), which is sealed to the fixing ring on the connector (200).

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