Sampling device with rotary joint

Abstract

The utility model discloses a sampling device with a rotary joint, and relates to the technical field of sampling device structures, the sampling device comprises a rotary joint and a sampling seat fixedly arranged on the side wall of a pressure vessel, the right port of a sampling tube is detachably connected with the rotary joint, and the other end of the rotary joint is detachably connected with a sampling pump; the rotating joint comprises an outer joint and an inner joint, the outer joint comprises an outer joint body and an outer joint chuck which are sequentially and fixedly connected into a whole from left to right, the bearing mounting hole is communicated with a flow channel in the outer joint body, and a sealing ring mounting clamping groove is formed in the inner wall of the flow channel of the outer joint body; the inner connector comprises an inner connector chuck and an inner connector body which are sequentially and fixedly connected into a whole from left to right, and an annular pressing table is fixedly arranged on the outer cylindrical surface of the inner connector body. The pressure container has the advantages that liquid medicine at different depths in the pressure container can be taken out, the service life is long, and the use cost is low.

Description

Technical Field

[0001] This utility model relates to the technical field of sampling device structure, and in particular to a sampling device with a rotary joint. Background Technology

[0002] Currently, with the development of science and technology and pharmaceutical technology, the market demands increasingly higher standards for pharmaceuticals. During drug manufacturing, it is necessary to extract liquid from different depths within the pressure vessel for better drug analysis. Existing sampling devices have structures such as... Figure 1 As shown, it includes a sampling seat 2 fixed on the side wall of the pressure vessel 1, a sampling tube 3 rotatably installed inside the sampling seat 2, the left end of the sampling tube 3 extending into the pressure vessel 1, and a bend 4 fixed on the extended end, a handle 5 welded to the outside of the sampling tube 3, and a hose 6 connected to the right end of the sampling tube 3 via a flange, the other end of the hose 6 being connected to the sampling pump 7.

[0003] The sampling device retrieves liquid medicine from different depths inside a pressure vessel using the following method: The worker rotates handle 5, which causes sampling tube 3 to rotate around its axis. Sampling tube 3 then causes bent tube 4 and hose 6 to rotate synchronously. When handle 5 rotates to a certain angle, the left end of bent tube 4 reaches the designated depth. At this point, sampling pump 7 is turned on. Under pump pressure, the liquid medicine in the pressure vessel passes sequentially through the left end of bent tube 4, bent tube 4, sampling tube 3, hose 6, and sampling pump 7, finally being pumped into the sampling box, thus retrieving the liquid medicine from that depth. Repeating step S1 multiple times allows for the retrieval of liquid medicine from different depths inside pressure vessel 1, facilitating better research on pharmaceuticals by staff.

[0004] However, although this sampling device can extract liquid medicine from different depths inside the pressure vessel, it still has the following technical shortcomings:

[0005] Because the right end of hose 6 is fixedly connected to the suction tube of sampling pump 7, while the left end of hose 6 rotates with sampling tube 3, hose 6 twists and deforms, and may even leak, after sampling tube 3 has rotated a certain number of times. Therefore, this sampling device suffers from a short service life. To solve this problem, workers can only detach hose 6 from sampling tube 3 and sampling pump 7 to replace it with a new hose, which undoubtedly increases operating costs.

[0006] Therefore, there is an urgent need for a sampling device that can extract liquid medicine from different depths inside a pressure vessel, has a long service life, and low operating cost. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings of the prior art and provide a sampling device with a rotary joint that can extract liquid medicine from different depths inside a pressure vessel, has a long service life, and low operating cost.

[0008] The purpose of this utility model is achieved through the following technical solution: a sampling device with a rotary joint, which includes a rotary joint, a sampling seat fixed on the side wall of a pressure vessel, a sampling tube rotatably installed in the sampling seat, the left end of the sampling tube extending into the pressure vessel, and a bent tube fixed on the extended end, a rotary joint detachably connected to the right end of the sampling tube, and a sampling pump detachably connected to the other end of the rotary joint.

[0009] The rotary joint includes an outer joint and an inner joint. The outer joint includes an outer joint body and an outer joint chuck that are fixedly connected together from left to right. A bearing mounting hole is provided on the left end face of the outer joint body, and the bearing mounting hole is connected to the flow channel inside the outer joint body. A sealing ring mounting groove is provided on the inner wall of the flow channel of the outer joint body. The inner joint includes an inner joint chuck and an inner joint body that are fixedly connected together from left to right. An annular pressure platform is fixed on the outer cylindrical surface of the inner joint body.

[0010] The inner connector body of the inner connector passes through the bearing mounting hole and flow channel of the outer connector from left to right. A bearing is fitted on the outer cylindrical surface of the inner connector body and is installed in the bearing mounting hole. A sealing ring is also fixed on the outer cylindrical surface of the inner connector body and is inserted into the sealing ring mounting groove, thereby achieving the sealing between the inner connector and the outer connector.

[0011] The sampling tube has a handle welded to its exterior.

[0012] The inner connector body of the inner connector has an annular shaft groove on the cylindrical surface located on the right side of the annular pressure table. A shaft elastic retaining ring is fixed in the annular shaft groove, and the inner ring of the bearing is pressed between the shaft elastic retaining ring and the annular pressure table.

[0013] The outer connector body of the outer connector has an annular groove for the bearing mounting hole on its inner wall. An elastic retaining ring for the hole is fixed in the annular groove. The outer ring of the bearing abuts against the elastic retaining ring for the hole and the side wall of the bearing mounting hole.

[0014] The inner connector chuck of the inner connector is fixedly connected to the right end of the sampling tube via clamp A, and the outer connector chuck of the outer connector is fixedly connected to the liquid extraction tube of the sampling pump via clamp B.

[0015] The bearing is a deep groove ball bearing.

[0016] This invention has the following advantages: it can extract liquid medicine from different depths inside a pressure vessel, has a long service life, and low operating costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an existing sampling device;

[0018] Figure 2 This is a schematic diagram of the structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the rotary joint structure;

[0020] Figure 4 This is a schematic diagram of the external connector.

[0021] Figure 5 This is a schematic diagram of the internal connector.

[0022] Figure 6 A schematic diagram of the structure of a shaft-mounted elastic retaining ring;

[0023] Figure 7 for Figure 6 Side view;

[0024] Figure 8 A schematic diagram of the structure of an elastic retaining ring for a hole;

[0025] Figure 9 for Figure 8 Side view;

[0026] In the picture:

[0027] 1-Pressure vessel, 2-Sampling seat, 3-Sampling tube, 4-Bend, 5-Handle, 6-Hose, 7-Sampling pump;

[0028] 8-Rotary joint, 9-Outer joint body, 10-Outer joint chuck, 11-Bearing mounting hole, 12-Flow channel, 13-Sealing ring mounting slot, 14-Inner joint chuck, 15-Inner joint body, 16-Annular pressure table, 17-Bearing, 18-Sealing ring, 19-Annular shaft slot, 20-Shaft elastic retaining ring, 21-Annular hole slot, 22-Hole elastic retaining ring. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings. The scope of protection of the present invention is not limited to the following description:

[0030] like Figures 2-9 As shown, a sampling device with a rotary joint includes a rotary joint 8 and a sampling seat 2 fixed to the side wall of a pressure vessel. A sampling tube 3 is rotatably installed inside the sampling seat 2. A handle 5 is welded to the outside of the sampling tube 3. The left end of the sampling tube 3 extends into the pressure vessel 1, and a bend 4 is fixed on the extended end. The rotary joint 8 is detachably connected to the right end of the sampling tube 3, and a sampling pump 7 is detachably connected to the other end of the rotary joint 8.

[0031] The rotary joint 8 includes an outer joint and an inner joint. The outer joint includes an outer joint body 9 and an outer joint chuck 10 that are fixedly connected together from left to right. A bearing mounting hole 11 is provided on the left end face of the outer joint body 9. The bearing mounting hole 11 is connected to the flow channel 12 inside the outer joint body 9. A sealing ring mounting groove 13 is provided on the inner wall of the flow channel 12 of the outer joint body 9. The inner joint includes an inner joint chuck 14 and an inner joint body 15 that are fixedly connected together from left to right. An annular pressure platform 16 is fixed on the outer cylindrical surface of the inner joint body 15.

[0032] The inner connector body 15 of the inner connector passes through the bearing mounting hole 11 and flow channel 12 of the outer connector from left to right. A bearing 17 is fitted on the outer cylindrical surface of the inner connector body 15. The bearing 17 is a deep groove ball bearing and is installed in the bearing mounting hole 11. A sealing ring 18 is also fixed on the outer cylindrical surface of the inner connector body 15. The sealing ring 18 is inserted into the sealing ring mounting groove 13, thereby achieving the sealing between the inner connector and the outer connector.

[0033] The inner connector body 15 of the inner connector has an annular shaft groove 19 located on the right side of the annular pressure platform 16 on its cylindrical surface. A shaft elastic retaining ring 20 is fixed in the annular shaft groove 19, and the inner ring of the bearing 17 abuts against the shaft elastic retaining ring 20 and the annular pressure platform 16. The outer connector body 9 of the outer connector has an annular hole groove 21 on its inner wall of the bearing mounting hole 11. A hole elastic retaining ring 22 is fixed in the annular hole groove 21, and the outer ring of the bearing 17 abuts against the hole elastic retaining ring 22 and the side wall of the bearing mounting hole 11.

[0034] like Figure 2 As shown, the inner connector chuck 14 of the inner connector is fixedly connected to the right end of the sampling tube 3 by clamp A, and the outer connector chuck 10 of the outer connector is fixedly connected to the liquid extraction tube of the sampling pump 7 by clamp B.

[0035] The working process of this utility model is as follows:

[0036] S1. The specific steps for the first sampling are as follows:

[0037] S11. The worker rotates handle 5, which causes sampling tube 3 to rotate around its axis. The direction of rotation is as follows: Figure 2 As shown by the middle arrow, the sampling tube 3 drives the bend tube 4 and the inner connector body 15 of the inner connector to rotate synchronously. The inner connector body 15 rotates relative to the stationary outer connector body 9. When the handle 5 is rotated to a certain angle, the left end of the bend tube 4 just rotates to the specified depth.

[0038] S12. Turn on the sampling pump 7. Under the pump pressure, the liquid medicine in the pressure vessel passes through the left port of the bend 4, the bend 4, the sampling tube 3, the inner connector body 15, and the sampling pump 7 in sequence, and is finally pumped into the sampling box to extract the liquid medicine at that depth.

[0039] S2. By repeating step S1 multiple times, the liquid medicine at different depths inside pressure vessel 1 can be extracted, thus better facilitating the staff's research on the medicine.

[0040] In step S1, since the left port of the inner connector body 15 is fixedly connected to the right port of the sampling tube 3, and the inner connector body 15 is rotatably mounted inside the outer connector via the bearing 17, the inner connector body 15 can rotate synchronously with the sampling tube 3. Even after the sampling tube 3 has rotated a certain number of times, the inner connector body 15 will not twist or deform. Therefore, this sampling device is superior to... Figure 1 The sampling device shown can not only extract liquid medicine from different depths inside the pressure vessel, but also prevent the inner connector body 15 from twisting or deforming. It has the technical characteristics of long service life and low operating cost.

[0041] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sampling device with a rotary joint, characterized in that: It includes a rotary joint (8), a sampling seat (2) fixed on the side wall of the pressure vessel, a sampling tube (3) rotatably installed inside the sampling seat (2), the left end of the sampling tube (3) extends into the pressure vessel (1), and a bent tube (4) is fixed on the extended end. The rotary joint (8) is detachably connected to the right end of the sampling tube (3), and a sampling pump (7) is detachably connected to the other end of the rotary joint (8). The rotary joint (8) includes an outer joint and an inner joint. The outer joint includes an outer joint body (9) and an outer joint chuck (10) that are fixed together from left to right. A bearing mounting hole (11) is provided on the left end face of the outer joint body (9). The bearing mounting hole (11) is connected to the flow channel (12) inside the outer joint body (9). A sealing ring mounting groove (13) is provided on the inner wall of the flow channel (12) of the outer joint body (9). The inner joint includes an inner joint chuck (14) and an inner joint body (15) that are fixed together from left to right. An annular pressure plate (16) is fixed on the outer cylindrical surface of the inner joint body (15). The inner connector body (15) of the inner connector passes through the bearing mounting hole (11) and flow channel (12) of the outer connector from left to right. The inner connector body (15) of the inner connector has a fixed bearing (17) on its outer cylindrical surface. The bearing (17) is installed in the bearing mounting hole (11). A sealing ring (18) is also fixed on the outer cylindrical surface of the inner connector body (15). The sealing ring (18) is inserted into the sealing ring mounting slot (13), thereby achieving the sealing between the inner connector and the outer connector.

2. A sampling device with a rotary joint according to claim 1, characterized in that: The sampling tube (3) has a handle (5) welded to its exterior.

3. A sampling device with a rotary joint according to claim 1, characterized in that: The inner connector body (15) of the inner connector has an annular shaft groove (19) located on the right side of the annular pressure table (16) on its cylindrical surface. An elastic retaining ring (20) for shaft is fixed in the annular shaft groove (19). The inner ring of the bearing (17) is pressed between the elastic retaining ring (20) for shaft and the annular pressure table (16).

4. A sampling device with a rotary joint according to claim 1, characterized in that: The bearing mounting hole (11) of the outer connector body (9) of the outer connector is provided with an annular hole groove (21) on the inner wall. An elastic retaining ring (22) for the hole is fixed in the annular hole groove (21). The outer ring of the bearing (17) presses against the side wall between the elastic retaining ring (22) for the hole and the bearing mounting hole (11).

5. A sampling device with a rotary joint according to claim 1, characterized in that: The inner connector chuck (14) of the inner connector is fixedly connected to the right end of the sampling tube (3) via clamp A, and the outer connector chuck (10) of the outer connector is fixedly connected to the liquid extraction tube of the sampling pump (7) via clamp B.

6. A sampling device with a rotary joint according to claim 1, characterized in that: The bearing (17) is a deep groove ball bearing.

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