Spring clip for pressure vessel and manufacturing method

Abstract

The present invention relates to a spring clip for a pressure vessel and a manufacturing method. A spring clip for a pressure vessel is characterized in that it includes two elastic clamping parts which are arranged opposite to each other left and right and made of an elastic material. A connecting part is provided between the lower ends of the two elastic clamping parts. A relief groove which penetrates through from front to back and opens upward is formed between the two elastic clamping parts. A positioning groove which communicates with the relief groove and faces the other elastic clamping part is provided on the inner wall of the elastic clamping part. The positioning groove extends upward along the elastic clamping part and opens upward. By providing a spring clip that can be used in cooperation with an existing pressure vessel, the present invention can achieve clamping and positioning of the lower end of a pipe fitting, can limit the sway of the lower end of a conduit, and at the same time can achieve positioning in the height direction of the pipe fitting, can reduce the sway amplitude of the pipe fitting, so as to avoid the upper end of the pipe fitting from detaching from the pressure vessel and extend the service life of the pipe fitting. The spring clip of the present invention has a simple structure, is convenient to manufacture, and the fixing method with the pressure vessel is also very simple, and the production cost is lower.

Description

Technical Field

[0001] The invention relates to a spring clip for a pressure vessel and a manufacturing method thereof. Background Art

[0002] Pressure vessels containing a mixture of gas and liquid are typically equipped with pipes running from top to bottom. When the valve is opened while the pressure vessel is upright, the liquid inside is forced outward along the pipes under internal pressure. The upper end of the pipes is bonded or threaded to the valve body. Due to the length of the pipes, they can shake when the pressure vessel is moved or in use, weakening the securing effect of the upper end. This can lead to the pipes falling off over time.

[0003] The invention with application number 202021634238.7 discloses an elastic pipe clamp to achieve the positioning and fixation of pipe fittings, but this spring clamp cannot be used with existing pressure vessels to achieve the positioning and fixation of the lower end of the pipe fittings. Summary of the Invention

[0004] The object of the present invention is to provide a spring clamp for a pressure vessel which can limit the shaking of the lower end of a pipe.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical solution: a spring clamp for a pressure vessel, comprising two elastic clamping parts arranged opposite to each other on the left and right and made of elastic material, a connecting part is provided between the lower ends of the two elastic clamping parts, a clearance groove is formed between the two elastic clamping parts, which passes through the front and back and opens upward, and a positioning groove is provided on the inner wall of the elastic clamping part, which is connected to the clearance groove and faces the other elastic clamping part, and the positioning groove extends upward along the elastic clamping part and opens upward.

[0006] When it is necessary to position the lower end of the conduit in the pressure vessel, the spring clip of the present invention is first fixed in the pressure vessel by welding or bolting, and then the pipe to be positioned is moved so that the pipe is inserted downward into the positioning groove of the elastic clamping part. The pipe is clamped and positioned by elastic clamping between the two elastic clamping parts, and the radial movement of the pipe is restricted by the setting of the positioning groove.

[0007] Preferably, the inner walls of the two elastic clamping parts are each provided with a positioning groove, and the two positioning grooves correspond to each other on the left and right. By providing positioning grooves on both elastic clamping parts, the left and right parts of the pipe are both semi-enclosed, thereby improving the positioning and limiting effect of the pipe.

[0008] Preferably, the cross-sectional shape of the surface of the positioning groove is the same as the shape of the outer edge of a part of the cross-section of the pipe to be positioned. The above setting enables the surface of the positioning groove to better contact the outer wall of the pipe to be positioned, so as to increase the contact area between the elastic clamping part and the pipe, further narrow the gap between the pipe and the elastic clamping part, and thus better realize the restriction of the radial movement of the catheter. When the pipe to be positioned is a square pipe, the positioning groove is processed into a U-shaped groove; when the pipe to be positioned is a circular pipe, the positioning groove is processed into an arc-shaped groove.

[0009] Preferably, the elastic clamping part and the connecting part are integrally formed, and the lower end of the elastic clamping part is smoothly connected to the edge of the connecting part and forms an arc-shaped structure. The above setting makes it more convenient to clamp and position the pipe, and also facilitates the processing and manufacturing of the spring clip of the present invention. Among them, the elastic clamping part has elasticity. When the pipe enters the positioning groove downward, as long as the distance between the two elastic clamping parts is less than the width of the pipe, the distance between the two elastic clamping parts will be enlarged, so that the pipe is clamped between the two elastic clamping parts.

[0010] Preferably, the elastic clamping part sequentially includes a guiding section and a clamping section for clamping the pipe from top to bottom. The guiding section is inclined in the up and down direction, and the distance between the two guiding sections on the left and right gradually decreases from top to bottom. Both the clamping section and the guiding section have the positioning groove. By setting the upper section, the downward movement of the pipe to be positioned is guided, so as to facilitate the lower end of the pipe to extend into the positioning groove. At the same time, it can avoid the collision between the pipe and the elastic clamping part.

[0011] Preferably, the elastic clamping part sequentially includes a deformation section and a clamping section for clamping the pipe from bottom to top. The deformation section is inclined in the up and down direction, and the distance between the two deformation sections on the left and right gradually increases from top to bottom. Since the lower section of the elastic clamping part is inclined, when the pipe passes through the clamping section, the contact surface between the pipe and the lower section is less or even none, which can reduce the assembly resistance between the pipe and the spring clip, and at the same time enable the lower section of the elastic clamping part to be better expanded and deformed.

[0012] Preferably, the connecting part is a sheet-like structure arranged in the left and right direction, and several extending parts extending forward or backward are provided in the middle of the connecting part. The above setting increases the contact area between the spring clip and the inner wall of the pressure vessel, and facilitates the welding fixation or bolt fastening of the spring clip to the pressure vessel.

[0013] The present invention also discloses a manufacturing method of a spring clip, including the following steps: (1) Press out the positioning groove extending along the length direction of the workpiece at the left and right ends of the strip-shaped sheet workpiece along the length direction; (2) Divide the workpiece into a connecting part and elastic clamping parts located on the left and right sides of the connecting part, perform bending between the elastic clamping parts and the connecting part, and bend the elastic clamping parts above the connecting part.

[0014] Preferably, in the step (1), after stamping out the positioning grooves, both ends of the workpiece with the positioning grooves are bent downward; and the ends of the workpiece with the positioning grooves are bent into an arc shape.

[0015] Preferably, in the step (2), after bending between the elastic clamping part and the connecting part, the distance between the two elastic clamping parts is adjusted according to the outer diameter of the pipe fitting to be positioned.

[0016] The present invention realizes the clamping and positioning of the lower end of the pipe fitting by providing a spring clip that can be used in cooperation with the existing pressure vessel, can limit the shaking of the lower end of the conduit, and can simultaneously realize the positioning in the height direction of the pipe fitting, can reduce the shaking amplitude of the pipe fitting, so as to prevent the upper end of the pipe fitting from detaching from the pressure vessel, and can extend the service life of the pipe fitting; the spring clip of the present invention has a simple structure, is convenient to manufacture, and the fixing method with the pressure vessel is also very simple, and the production cost is lower. Brief Description of the Drawings

[0017] Figure 1 It is a schematic structural view of the spring clip of the present invention before processing;

[0018] Figure 2 It is a schematic structural view of the spring clip of the present invention after stamping out the positioning grooves at both ends;

[0019] Figure 3 It is a schematic structural view of the spring clip of the present invention after bending both ends;

[0020] Figure 4 It is a schematic structural view of the spring clip of the present invention after bending between the elastic clamping part and the connecting part;

[0021] Figure 5 It is a schematic structural view of the spring clip of the present invention;

[0022] Figure 6 It is a cross-sectional view of the spring clip of the present invention. Detailed Description of the Invention

[0023] The present invention will be further described below with reference to the drawings and specific embodiments.

[0024] Embodiment 1

[0025] Consisting of Figure 5 And Figure 6As shown in the figure, this embodiment discloses a spring clip for a pressure vessel, which includes two elastic clamping parts 1 that are symmetrically arranged on the left and right and made of elastic material. One end of each of the lower ends of the two elastic clamping parts 1 is respectively connected and fixed to one end of the left and right ends of the connecting part 2. A positioning groove 10 facing the other elastic clamping part is provided on the inner wall of the elastic clamping part 1. The positioning groove 10 extends upward along the elastic clamping part 1 and opens upward. Among them, the elastic clamping part 1 and the connecting part 2 are integrally formed, and the lower end of the elastic clamping part 1 is smoothly connected to the edge of the connecting part 2 and forms an arc structure. Among them, the connecting part 2 is in a sheet-like structure arranged in the left-right direction. An extension part 21 extending forward and backward is provided in the middle of the connecting part 2, and the extension part 21 is used for fixing to the inner wall of the pressure vessel.

[0026] A positioning groove 10 is provided on the inner walls of both elastic clamping parts 1, and the two positioning grooves 10 are corresponding to each other left and right. Among them, the cross-sectional shape of the groove surface of the positioning groove 10 is the same as the outer edge shape of a part of the cross-section of the pipe fitting to be positioned.

[0027] The elastic clamping part 1 sequentially includes a guiding section 11, a clamping section 12 for clamping the pipe fitting, and a deformation section 13 from top to bottom. The guiding section 11 is inclined in the up-down direction, and the distance between the two guiding sections 11 on the left and right gradually decreases from top to bottom. Both the clamping section 12 and the guiding section 11 have the positioning groove 10. The deformation section 13 is inclined in the up-down direction, and the distance between the two deformation sections 13 on the left and right gradually increases from top to bottom.

[0028] Embodiment 2

[0029] The present invention discloses a manufacturing method of the spring clip in an embodiment, which includes the following steps: (1) Press out the positioning groove 10 extending along the length direction of the workpiece at the left and right ends of the strip-shaped sheet workpiece along the length direction. After stamping out the positioning groove 10, bend the two ends of the workpiece with the positioning groove 10 downward, and bend the end of the workpiece with the positioning groove 10 into a circular arc shape; (2) Divide the workpiece into the connecting part 2 and the elastic clamping parts 1 on the left and right sides of the connecting part 2, perform the bending between the elastic clamping part 1 and the connecting part 2, and bend the elastic clamping part 1 above the connecting part 2. After completing the bending between the elastic clamping part 1 and the connecting part 2, adjust the distance between the two elastic clamping parts 1 according to the outer diameter of the pipe fitting to be positioned.

[0030] From Figures 1 to 4 As shown in sequence, it is a schematic structural diagram of the spring clip of the present invention in different supplementary steps during the processing process.

[0031] The present invention realizes the clamping and positioning of the lower end of a pipe fitting by providing a spring clip that can be used in cooperation with an existing pressure vessel, can limit the swaying of the lower end of a conduit, and at the same time can realize the positioning of the pipe fitting in the height direction, can reduce the swaying amplitude of the pipe fitting so as to prevent the upper end of the pipe fitting from detaching from the pressure vessel, and can extend the service life of the pipe fitting; the spring clip of the present invention has a simple structure, is convenient to manufacture, and the fixing method with the pressure vessel is also very simple, with lower production costs.

Claims

1. A spring clip for a pressure vessel, characterized in that It includes two elastic clamping parts which are arranged opposite to each other left and right and made of elastic material. One end of each of the left and right ends of the connecting part is fixedly connected to the lower ends of the two elastic clamping parts respectively. Positioning grooves facing the other elastic clamping part are provided on the inner walls of the elastic clamping parts, and the positioning grooves extend upward along the elastic clamping parts and open upward; the elastic clamping parts successively include a guiding section, a clamping section for clamping a pipe fitting, and a deformation section from top to bottom. The guiding section is inclined in the up-down direction, and the distance between the left and right guiding sections gradually decreases from top to bottom. The clamping section is arc-shaped, and both the clamping section and the guiding section have the positioning grooves. The deformation section is inclined in the up-down direction, and the distance between the left and right deformation sections gradually increases from top to bottom; One of the positioning grooves is provided on the inner walls of each of the two elastic clamping parts, and the two positioning grooves correspond to each other left and right; the cross-sectional shape of the positioning groove surface is the same as the outer edge shape of a part of the cross-section of the pipe fitting to be positioned; the elastic clamping part and the connecting part are integrally formed, and the lower end of the elastic clamping part is smoothly connected to the edge of the connecting part and forms an arc-shaped structure.

2. The spring clip for a pressure vessel according to claim 1, characterized in that The connecting part is a sheet-like structure arranged in the left-right direction, and a plurality of extending parts extending forward or backward are provided in the middle of the connecting part.

3. The manufacturing method of the spring clip for pressure vessels according to claim 1, characterized in that It includes the following steps: (1) Press out the positioning grooves extending along the length direction of the workpiece at the left and right ends of the strip-shaped sheet workpiece along the length direction of the workpiece; (2) Divide the workpiece into a connecting part and elastic clamping parts located on the left and right sides of the connecting part, perform bending between the elastic clamping parts and the connecting part, and bend the elastic clamping parts above the connecting part.

4. The manufacturing method according to claim 3, characterized in that In the step (1), after punching out the positioning grooves, bend the two ends of the workpiece with the positioning grooves downward; and bend the ends of the workpiece with the positioning grooves into a circular arc shape.

5. The manufacturing method according to claim 3, characterized in that In the step (2), after completing the bending between the elastic clamping parts and the connecting part, adjust the distance between the two elastic clamping parts according to the outer diameter of the pipe fitting to be positioned.

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