Quick connection type liquid oxygen filling pump

Abstract

The utility model relates to the technical field of liquid oxygen filling pumps, in particular to a quick connection type liquid oxygen filling pump which comprises a base and a base, a pump body is fixedly installed on the surface of the base, a liquid inlet pipe and a liquid outlet pipe are fixedly installed on the surface of the pump body, and a port of the liquid inlet pipe is connected with a butt joint pipe. According to the utility model, through the matching design of the clamping block and the clamping groove between the butt joint pipe and the liquid inlet pipe, the rapid and reliable connection is realized, the tedious process of long-time operation and multiple times of inspection in the traditional connection mode is avoided, and the threaded connection of the locking cap and the external thread joint enables the butt joint process to be rapid and accurate in locking; according to the technical scheme, firmness and sealing performance of the connecting part are guaranteed, the risk of liquid leakage caused by misoperation is reduced, in addition, the stability of the connecting part is further enhanced through cooperation of the locking bolt and the locking hole, and it is guaranteed that loosening or falling-off cannot be caused by pressure change or external force in the butt joint process.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid oxygen filling pump technical field especially relates to a quick connector type liquid oxygen filling pump. BACKGROUND

[0002] Liquid oxygen filling pump is the key component in liquid oxygen device, is widely used in industry, medical treatment and other fields, especially in the storage and filling process of liquid oxygen. The utility model discloses a vertical multistage liquid oxygen pump, including motor, casing and reflux shell, the motor, casing and reflux shell are sequentially connected with each other, the output shaft of motor rotates and penetrates in casing, and the end of the output shaft of motor that extends into casing is detachably connected with transmission shaft, the transmission shaft rotates and penetrates in the inside of reflux shell, and the shaft body of transmission shaft in the inside of reflux shell is equidistantly fixed with a plurality of small impellers and big impellers, the utility model makes liquid oxygen pass through the gap between the shaft hole and enter the small reflux chamber, flows between the small reflux chamber, enters the big reflux chamber inside, and the volume of big reflux chamber is much larger than the volume of small reflux chamber, so that the liquid oxygen in the big reflux chamber is buffered, and then flows out from the output pipeline, reduces the impact force between the liquid oxygen received by each impeller. But the above technology in the use process, liquid oxygen pump usually adopts fixed connection structure, and the filling work is completed through manual operation, so it usually needs long connection time and complex operation steps, increases the operation difficulty, reduces the working efficiency, at the same time, since liquid oxygen is a kind of highly volatile and highly dangerous substance, after long time use, the vibration of pump body can cause the loosening of connecting structure, thereby affecting the sealing performance and stability of connecting structure, thereby easily leading to leakage, damage or security risks. UTILITY MODEL CONTENTS

[0003] The utility model aims at solving the technical problem in the background art.

[0004] The utility model discloses a quick connector type liquid oxygen filling pump, including base and base, the surface fixed mounting of base has the pump body, the surface fixed mounting of pump body has liquid inlet pipe and liquid outlet pipe, the port of liquid inlet pipe is connected with the butt joint pipe, the surface fixed mounting of butt joint pipe has the fixed sheet, the surface fixed mounting of fixed sheet has the clamping block, the surface rotatory joint of butt joint pipe has the locking cap, the surface fixed mounting of liquid inlet pipe has the external thread joint, the surface of external thread joint is equipped with the clamping groove, the clamping block is connected with the clamping groove, the locking cap is connected with external thread joint thread, the side fixed mounting of locking cap has the convex ring, the surface of convex ring inserts and has the locking bolt, the surface fixed mounting of liquid inlet pipe has the convex block, the surface of convex block is equipped with the locking hole, the locking bolt is connected in the locking hole inside thread.

[0005] Preferably, the surface of the base is provided with a bolt, the surface of the base is provided with a No. 1 screw hole, and the bolt is threadedly connected in the No. 1 screw hole. Here, the fixed connection between the base and the base is more firm, providing good support and stability for the pump body, and facilitating the disassembly and maintenance of the pump body by personnel.

[0006] Preferably, the surface of the fixed sheet is fixedly provided with an extension pipe, the extension pipe is inserted into the inner part of the liquid inlet pipe, and a sealing ring is arranged between the extension pipe and the liquid inlet pipe. Here, the sealing property during liquid oxygen filling is ensured, liquid oxygen leakage is prevented, and the liquid inlet pipe and the butt joint pipe are made to be on the same axis during butt joint.

[0007] Preferably, the number of the clamping blocks is two groups, the two groups of clamping blocks are circumferentially distributed around the extension pipe, and the positions of the two groups of clamping blocks are symmetrically distributed. Here, the connection between the butt joint pipe and the liquid inlet pipe is more firm, and the uneven connection or deformation of the clamping block caused by the cooperation of a single clamping block and a clamping groove is avoided.

[0008] Preferably, the surface of the locking cap is fixedly provided with a sliding sleeve, the surface of the butt joint pipe is fixedly provided with a shell, the inner part of the shell is slidably connected with a compression ring, the compression ring is sleeved on the surface of the butt joint pipe, a spring is fixedly connected between the compression ring and the shell, the sliding sleeve is located on the surface of the butt joint pipe and slides in the shell, and the sliding sleeve is used to extrude the spring through the compression ring in the shell. Here, the spring is compressed by the sliding block extruding the compression ring, so that the locking cap can be limited in a specific area of the butt joint pipe, so as to facilitate the operation of personnel during butt joint, thereby realizing reliable locking of the butt joint pipe and the liquid inlet pipe.

[0009] Preferably, the surface of the base is provided with a groove, the inner part of the groove is placed with a buffer pad, the surface of the buffer pad and the base is provided with a pressing plate, the side surface of the pressing plate is provided with a through hole, the inner part of the through hole is inserted with a screw, the side surface of the base is provided with a No. 2 screw hole, the inner side of the pressing plate is fixedly provided with a positioning block, and the surface of the buffer pad is provided with a positioning hole. Here, the buffer pad can effectively absorb vibration and impact, reducing the influence of possible mechanical impact on the equipment during filling.

[0010] Preferably, a roller is rotatably connected in the inner part of the groove, and the rollers are equidistantly distributed in the inner part of the groove. Here, the pressing plate is removed, the buffer pad is directly extracted from the groove by the rolling force of the roller, the base and the base are not separated, and the maintenance and replacement efficiency of the buffer pad is improved.

[0011] Compared with the prior art, the advantages and positive effects of the utility model lie in:

[0012] 1、The utility model discloses a quick -welding formula liquid oxygen filling pump's base's explosion map, and the quick -welding formula liquid oxygen filling pump's base's explosion map is shown in the figure.

[0013] 2、The utility model discloses a quick -welding formula liquid oxygen filling pump's base's explosion map, and the quick -welding formula liquid oxygen filling pump's base's explosion map is shown in the figure. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 A schematic diagram of the quick -welding formula liquid oxygen filling pump is provided for the utility model.

[0015] Figure 2 A schematic diagram of the quick -welding formula liquid oxygen filling pump's liquid inlet pipe and butt joint pipe assembly is provided for the utility model.

[0016] Figure 3 An explosion diagram of the quick -welding formula liquid oxygen filling pump's butt joint pipe is provided for the utility model.

[0017] Figure 4 A schematic diagram of the quick -welding formula liquid oxygen filling pump's liquid inlet pipe is provided for the utility model.

[0018] Figure 5 An explosion diagram of the quick -welding formula liquid oxygen filling pump's base is provided for the utility model.

[0019] Figure 6 A schematic diagram of the quick -welding formula liquid oxygen filling pump's pressing plate is provided for the utility model.

[0020] LEGEND:

[0021] 1, base; 2, base; 3, pump body; 4, liquid inlet pipe; 5, liquid outlet pipe; 6, bolt; 7, No. 1 screw hole; 8, groove; 9, roller; 10, buffer pad; 11, positioning hole; 12, pressing plate; 13, perforation; 14, screw; 15, No. 2 screw hole; 16, positioning block; 17, butt joint pipe; 18, fixed sheet; 19, clamping block; 20, extension pipe; 21, locking cap; 22, convex ring; 23, locking bolt; 24, sliding sleeve; 25, shell; 26, pressing ring; 27, spring; 28, external thread joint; 29, clamping groove; 30, protrusion; 31, locking hole. DETAILED DESCRIPTION

[0022] In order to enable the above-mentioned purposes, features and advantages of the present application to be more clearly understood, the present application will be further described below with reference to the drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be practiced in other ways different from those described herein, therefore, the present application is not limited to the specific embodiments disclosed in the following description.

[0024] Embodiment one

[0025] Please refer to Figures 1-5The utility model provides a kind of technical scheme: a quick connector type liquid oxygen filling pump, including base 1 and pedestal 2, the surface of pedestal 2 is fixedly installed with pump body 3, the surface of pedestal 2 is inserted with bolt 6, the surface of base 1 is provided with No. screw hole 7, bolt 6 is connected in the internal thread of No. screw hole 7, it is more firm to ensure the fixed connection between pedestal 2 and base 1, provide good support and stability for pump body 3, also facilitate personnel to disassemble and maintain pump body 3, the surface of pump body 3 is fixedly installed with liquid inlet pipe 4 and liquid outlet pipe 5, the port of liquid inlet pipe 4 is connected with docking pipe 17, the surface of docking pipe 17 is fixedly installed with fixed sheet 18, the surface of fixed sheet 18 is fixedly installed with extension pipe 20, extension pipe 20 is inserted in the inside of liquid inlet pipe 4, sealing ring is arranged between extension pipe 20 and liquid inlet pipe 4, to ensure the sealing property when liquid oxygen fills, prevent liquid oxygen leakage, also facilitate in docking process, make liquid inlet pipe 4 and docking pipe 17 be on the same axis, the surface of fixed sheet 18 is fixedly installed with clamping block 19, the surface of docking pipe 17 is rotatably connected with locking cap 21, the surface of liquid inlet pipe 4 is fixedly installed with external thread joint 28, the surface of external thread joint 28 is provided with clamping groove 29, clamping block 19 is engaged with clamping groove 29, locking cap 21 is threadedly connected with external thread joint 28, the number of clamping block 19 is two groups, two groups of clamping block 19 are circumferentially distributed around extension pipe 20, and the positions of two groups of clamping block 19 are symmetrically distributed, to ensure that the connection between docking pipe 17 and liquid inlet pipe 4 is more firm, avoid the connection imbalance or clamping block 19 deformation caused by single clamping block 19 and clamping groove 29 cooperation, the side of locking cap 21 is fixedly installed with convex ring 22, the surface of convex ring 22 is inserted with locking bolt 23, the surface of liquid inlet pipe 4 is fixedly installed with protruding block 30, the surface of protruding block 30 is provided with locking hole 31, locking bolt 23 is threadedly connected in locking hole 31, the surface of locking cap 21 is fixedly installed with sliding sleeve 24, the surface of docking pipe 17 is fixedly installed with shell 25, slidingly connected with compression ring 26 in the inside of shell 25, compression ring 26 is sleeved on the surface of docking pipe 17, spring 27 is fixedly connected between compression ring 26 and shell 25, sliding sleeve 24 is located on the surface of docking pipe 17 in shell 25 and slides, and sliding sleeve 24 is inside shell 25 by compression ring 26 extruding spring 27, by sliding block extruding compression ring 26 to compress spring 27, so that locking cap 21 can be limited in the specific area of docking pipe 17, to facilitate personnel operation in the docking process, so as to realize the reliable locking of docking pipe 17 and liquid inlet pipe 4.

[0026] Example two

[0027] Please refer to Figures 5-6The surface of the base 1 is provided with a groove 8, the inside of the groove 8 is placed with a buffer pad 10, the buffer pad 10 and the surface of the base 1 are provided with a pressing plate 12, the side surface of the pressing plate 12 is provided with a through hole 13, the inside of the through hole 13 is inserted with a screw 14, the side surface of the base 1 is provided with a No.2 screw hole 15, the inside of the pressing plate 12 is fixedly installed with a positioning block 16, the surface of the buffer pad 10 is provided with a positioning hole 11, the buffer pad 10 can effectively absorb vibration and impact, reduce the influence of mechanical impact on the equipment during the filling process, the inside of the groove 8 is rotatably connected with a roller 9, the rollers 9 are equidistantly distributed in the inside of the groove 8, the pressing plate 12 is removed, through the rolling force of the roller 9, it is convenient for personnel to directly take out the buffer pad 10 from the groove 8, without separating the base 2 from the base 1, the maintenance and replacement efficiency of the buffer pad 10 is improved.

[0028] Working principle: first, the base 2 is fixedly connected with the base 1 through the bolt 6, the surface of the base 1 is provided with a screw hole 7, so that the bolt 6 is screwed with the screw hole 7, and the stable fixing between the base 2 and the base 1 is ensured, the pump body 3 is installed on the base 2, the inlet pipe 4 and the outlet pipe 5 are connected with the pump body 3 respectively, the port of the inlet pipe 4 is connected with the butt joint pipe 17, the surface of the butt joint pipe 17 is installed with the fixing piece 18, the fixing piece 18 is provided with the extension pipe 20, the extension pipe 20 is inserted into the inside of the inlet pipe 4 and the sealing is ensured through the sealing ring when the liquid oxygen is filled, the surface of the fixing piece 18 is also installed with two groups of symmetrically distributed clamping blocks 19, the clamping blocks 19 are clamped with the clamping grooves 29 provided on the inlet pipe 4, the connection between the butt joint pipe 17 and the inlet pipe 4 is stable, and the uneven connection is avoided, the connection between the butt joint pipe 17 and the inlet pipe 4 is completed through the locking cap 21, the locking cap 21 is connected with the external thread joint 28 on the inlet pipe 4 through the thread, the convex ring 22 is installed on the side surface of the locking cap 21, the locking pin 23 is inserted into the convex ring 22, the locking pin 23 is screwed with the locking hole 31 of the convex block 30 on the inlet pipe 4, so that the reliable locking is realized, and the butt joint pipe 17 and the inlet pipe 4 are prevented from loosening due to the mistaken operation of the personnel. In addition, during the butt joint process, the sliding sleeve 24 is installed on the surface of the locking cap 21, the spring 27 is compressed in the sliding sleeve 24 through the pressing ring 26, the pressing ring 26 is sleeved on the surface of the butt joint pipe 17, the pressing ring 26 is connected with the shell 25 through the spring 27, when the sliding sleeve 24 slides in the shell 25, the spring 27 is extruded through the pressing ring 26, so that the locking cap 21 can be kept stable in the specific area of the butt joint pipe 17, the personnel is facilitated to operate, the reliable connection between the butt joint pipe 17 and the inlet pipe 4 is ensured, and the leakage of the liquid oxygen is avoided. The surface of the base 1 is provided with the recess 8, the buffer pad 10 is placed in the recess 8, the buffer pad 10 is fixed with the base 1 through the pressing plate 12, the through hole 13 is formed in the side surface of the pressing plate 12, the screw 14 is inserted into the through hole 13 and connected with the second screw hole 15 of the base 1, the positioning hole 11 is formed in the surface of the buffer pad 10, the positioning block 16 is arranged on the inner side of the pressing plate 12, so that the stable installation between the buffer pad 10 and the base 1 is ensured, the roller 9 is arranged in the recess 8, the rollers 9 are uniformly distributed, the buffer pad 10 can be easily removed through the rotation of the rollers 9, and the efficiency of maintenance and replacement is improved.

[0029] The above is only the preferred embodiment of the present application, and does not limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied in other fields, but any simple modification, equivalent change and modification made on the basis of the technical essence of the present application to the above embodiments still belongs to the protection scope of the technical scheme of the present application.

Claims

1. A quick connect liquid oxygen filling pump comprising a base (1) and a pedestal (2), characterized in that: The surface of the base (2) is fixedly installed with a pump body (3), the surface of the pump body (3) is fixedly installed with a liquid inlet pipe (4) and a liquid outlet pipe (5), the port of the liquid inlet pipe (4) is connected with a docking pipe (17), the surface of the docking pipe (17) is fixedly installed with a fixed sheet (18), the surface of the fixed sheet (18) is fixedly installed with a clamping block (19), the surface of the docking pipe (17) is rotatably connected with a locking cap (21), the surface of the liquid inlet pipe (4) is fixedly installed with an external thread joint (28), the surface of the external thread joint (28) is provided with a clamping groove (29), the clamping block (19) is clamped and connected with the clamping groove (29), the locking cap (21) is threadedly connected with the external thread joint (28), the side surface of the locking cap (21) is fixedly installed with a convex ring (22), the surface of the convex ring (22) is inserted with a locking bolt (23), the surface of the liquid inlet pipe (4) is fixedly installed with a convex block (30), the surface of the convex block (30) is provided with a locking hole (31), and the locking bolt (23) is threadedly connected in the locking hole (31).

2. The quick connect liquid oxygen filling pump as claimed in claim 1, wherein: The surface of the base (2) is inserted with a bolt (6), the surface of the base (1) is provided with a No. 1 screw hole (7), and the bolt (6) is threadedly connected in the No. 1 screw hole (7).

3. The quick connect liquid oxygen filling pump as claimed in claim 1, wherein: The surface of the fixed sheet (18) is fixedly installed with an extension pipe (20), the extension pipe (20) is inserted into the liquid inlet pipe (4), and a sealing ring is arranged between the extension pipe (20) and the liquid inlet pipe (4).

4. The quick connect liquid oxygen fill pump of claim 1, wherein: The number of the clamping block (19) is two groups, the two groups of clamping blocks (19) are circumferentially distributed around the extension pipe (20), and the positions of the two groups of clamping blocks (19) are symmetrically distributed.

5. The quick connect liquid oxygen fill pump of claim 1, wherein: The surface of the locking cap (21) is fixedly installed with a sliding sleeve (24), the surface of the docking pipe (17) is fixedly installed with a shell (25), the inside of the shell (25) is slidably connected with a pressing ring (26), the pressing ring (26) is sleeved on the surface of the docking pipe (17), the spring (27) is fixedly connected between the pressing ring (26) and the shell (25), the sliding sleeve (24) slides on the surface of the docking pipe (17) in the shell (25), and the sliding sleeve (24) extrudes the spring (27) in the shell (25) through the pressing ring (26).

6. The quick connect liquid oxygen fill pump of claim 1, wherein: The surface of the base (1) is provided with a groove (8), the inside of the groove (8) is placed with a buffer pad (10), the surface of the buffer pad (10) and the base (1) is provided with a pressing plate (12), the side surface of the pressing plate (12) is provided with a perforation (13), the inside of the perforation (13) is inserted with a screw (14), the side surface of the base (1) is provided with a No. 2 screw hole (15), the inside of the pressing plate (12) is fixedly installed with a positioning block (16), and the surface of the buffer pad (10) is provided with a positioning hole (11).

7. The quick connect liquid oxygen fill pump of claim 6, wherein: The inside of the groove (8) is rotatably connected with a roller (9), and the rollers (9) are equidistantly distributed in the inside of the groove (8).

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