CN216645983U

CN216645983U - Sampling device with good tightness

Info

Publication number: CN216645983U
Application number: CN202220064219.8U
Authority: CN
Inventors: 高杰; 高英涵; 赵晓晓
Original assignee: Shandong Xinhua Lukang Pharmaceutical Co ltd
Current assignee: Shandong Xinhua Lukang Pharmaceutical Co ltd
Priority date: 2022-01-11
Filing date: 2022-01-11
Publication date: 2022-05-31
Anticipated expiration: 2032-01-11

Abstract

The utility model provides a sampling device with good tightness, which comprises a sampling tube, a cross-shaped push rod, a circular connecting plate, a pressing handle, a T-shaped connecting block, a rubber piston, an inlet and outlet tube, an internal thread connecting tube, an auxiliary handle, a sealed sampling hose structure which is convenient to install and seal, a convenient-to-plug sampling operation tube structure and a lock tube thread pressing rod structure, wherein the cross-shaped push rod is inserted into the sampling tube, one end of the cross-shaped push rod is integrally connected with the circular connecting plate, and the other end of the cross-shaped push rod is integrally connected with the pressing handle; the middle part of the right part of the circular connecting plate is integrally connected with a T-shaped connecting block; the left side in the rubber piston is provided with a T-shaped mounting hole, and the rubber piston is sleeved on the outer wall of the T-shaped connecting block through the T-shaped mounting hole. The sampling hose, the annular stop block, the sealing ring, the external thread sleeve and the installation operation sleeve are arranged, so that the problem of poor tightness is solved.

Description

Sampling device with good tightness

Technical Field

The utility model belongs to the technical field of test devices, and particularly relates to a sampling device with good airtightness.

Background

The dissolution test is a process for determining the dissolution rate or the release rate of the solid preparation, and is an in vitro test method for simulating disintegration and dissolution of the oral solid preparation in the gastrointestinal tract.

At present, sampling devices are widely used.

But the problem that the existing sampling device has poor tightness, is inconvenient for sampling and does not have the function of a lock tube.

Therefore, it is necessary to provide a sampling device with good sealing property.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides a sampling device with good sealing performance, wherein the sampling device is realized by the following technical scheme:

a sampling device with good tightness comprises a sampling tube, a cross-shaped push rod, a circular connecting plate, a pressing handle, a T-shaped connecting block, a rubber piston, an inlet and outlet tube, an internal thread connecting tube, an auxiliary handle, a sealed sampling hose structure which is convenient to install, a sample-taking operation tube structure which can be plugged and a lock tube thread pressing rod structure, wherein the cross-shaped push rod is inserted into the sampling tube, one end of the cross-shaped push rod is integrally connected with the circular connecting plate, and the other end of the cross-shaped push rod is integrally connected with the pressing handle; the middle part of the right part of the circular connecting plate is integrally connected with a T-shaped connecting block; the left side in the rubber piston is provided with a T-shaped mounting hole, and the rubber piston is sleeved on the outer wall of the T-shaped connecting block through the T-shaped mounting hole; the outer surface of the rubber piston and the inner surface of the sampling tube are arranged in a sliding friction manner; an inlet pipe and an outlet pipe are transversely and integrally connected to an opening at the middle part of the right part of the sampling pipe; the middle part of the right part of the sampling tube is integrally connected with an internal thread connecting tube, and the inner side of the internal thread connecting tube is provided with an inlet tube and an outlet tube; the left upper side and the left lower side of the sampling tube are connected with an auxiliary handle in an integrated mode; the conveniently-installed sealed sampling hose structure is connected with the internal thread connecting pipe; the structure of the stoppable convenient sampling operation pipe is connected with the structure of the convenient-to-mount sealing sampling hose; the lock pipe thread pressing rod structure is sleeved on the outer wall of the conveniently-installed sealed sampling hose structure; the conveniently-installed sealed sampling hose structure comprises a sampling hose, an annular stop block, a sealing ring, an external thread sleeve and an installation operation sleeve, wherein the annular stop block is sleeved at the left upper end of the sampling hose and is integrally connected with the sampling hose; the left part of the annular stop block is glued with a sealing ring; the outer wall of the sampling hose is sleeved with an external thread sleeve, and the external thread sleeve is positioned at the right part of the annular stop block; the outer wall of the sampling hose is sleeved with an installation operation sleeve, and the middle part of the left part of the installation operation sleeve is integrally connected with the right part of the external thread sleeve.

Preferably, the structure of the stoppable sampling operation tube comprises a limiting plate, a pagoda joint, a sampling operation tube, an internal thread plugging head and a plugging plug rod, wherein the opening at the middle part of the right part of the limiting plate is integrally connected with the pagoda joint; the opening of the middle part of the left part of the limiting plate is integrally connected with a sampling operation pipe; the left end of the sampling operation pipe is in threaded connection with an internal thread plugging head, a plugging rod is integrally arranged in the middle of the inner wall of the left side of the internal thread plugging head, and the plugging rod is inserted in the left side of the inside of the sampling operation pipe.

Preferably, the lock pipe thread pressing rod structure comprises a square lock pipe operating block, an installation through hole, a thread through hole, a screw rod pressing rod and an operating column, wherein the installation through hole is transversely formed in the middle part of the square lock pipe operating block; the inner upper side of the square lock pipe operation block is longitudinally provided with a threaded through hole which is communicated with the mounting through hole; the screw thread through-hole inside threaded connection have the screw rod to press the depression bar, and screw rod presses the depression bar upper end and the middle part integration of operation post lower part and sets up.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the arrangement of the sampling hose, the annular stop block, the sealing ring, the external thread sleeve and the installation operation sleeve is beneficial to solving the problem of poor tightness.

2. According to the utility model, the limiting plate, the pagoda joint, the sampling operation pipe, the internal thread plugging head and the plugging plug rod are arranged, so that the problem of inconvenience in sampling is solved.

3. According to the utility model, the square tube locking operation block is provided with the installation through hole, the thread through hole, the screw rod pressing rod and the operation column, so that the tube locking function is realized, and the problem that the solution in the sampling hose flows automatically is avoided.

4. In the utility model, the arrangement of the sampling tube is beneficial to realizing the functions of storing and measuring samples.

5. According to the utility model, the auxiliary handle is arranged, so that the function of assisting an operator to press the pressing handle is realized.

6. According to the utility model, the arrangement of the cross-shaped push rod, the circular connecting plate, the pressing handle and the T-shaped connecting block is beneficial to driving the rubber piston to move.

7. In the utility model, the arrangement of the rubber piston is beneficial to generating negative pressure in the sampling pipe.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic structural view of the structure of the easy-to-install sealed sampling hose of the present invention.

Fig. 3 is a schematic structural diagram of a structure of a stoppable feces sampling operation tube of the present invention.

Fig. 4 is a schematic structural view of a lock pipe thread pressing rod structure of the present invention.

In the figure:

1. a sampling tube; 2. a cross-shaped push rod; 3. a circular connecting plate; 4. pressing the handle; 5. a T-shaped connecting block; 6. a rubber piston; 7. an inlet pipe and an outlet pipe; 8. an internal thread connecting pipe; 9. an auxiliary handle; 10. the sealed sampling hose structure is convenient to install; 101. a sampling hose; 102. an annular stop block; 103. a seal ring; 104. an externally threaded sleeve; 105. installing an operation sleeve; 11. the structure of the sampling operation tube can be blocked; 111. a limiting plate; 112. a pagoda joint; 113. a sampling operation tube; 114. an internal thread plugging head; 115. plugging the plug rod; 12. the lock pipe thread presses the lever structure; 121. a square lock tube operation block; 122. mounting a through hole; 123. a threaded through hole; 124. a screw pressing rod; 125. and (4) operating the column.

Detailed Description

The utility model is described in detail with reference to the accompanying drawings, as shown in fig. 1 and fig. 2, a sampling device with good sealing performance comprises a sampling tube 1, a cross-shaped push rod 2, a circular connecting plate 3, a pressing handle 4, a T-shaped connecting block 5, a rubber piston 6, an inlet and outlet tube 7, an internal thread connecting tube 8 and an auxiliary handle 9, wherein the cross-shaped push rod 2 is inserted into the sampling tube 1, one end of the cross-shaped push rod 2 is integrally connected with the circular connecting plate 3, and the other end of the cross-shaped push rod 2 is integrally connected with the pressing handle 4, so that the cross-shaped push rod 2 can be pulled or pressed conveniently; the middle part of the right part of the circular connecting plate 3 is integrally connected with a T-shaped connecting block 5; a T-shaped mounting hole is formed in the left side of the interior of the rubber piston 6, and the rubber piston 6 is sleeved on the outer wall of the T-shaped connecting block 5 through the T-shaped mounting hole; the outer surface of the rubber piston 6 is arranged in a sliding friction manner with the inner surface of the sampling tube 1, so that the effect of generating negative pressure inside the sampling tube 1 is achieved; an inlet and outlet pipe 7 is transversely and integrally connected to an opening at the middle part of the right part of the sampling pipe 1; an internal thread connecting pipe 8 is integrally connected to the middle part of the right part of the sampling pipe 1, and an inlet and outlet pipe 7 is arranged on the inner side of the internal thread connecting pipe 8; the upper left side and the lower left side of the sampling tube 1 are connected with an auxiliary handle 9 in an integrated mode, and the effect that an auxiliary operator presses the pressing handle 4 is achieved.

The sampling device with good tightness further comprises a conveniently-installed sealed sampling hose structure 10, a conveniently-installed sampling operation pipe structure 11 and a pipe locking thread pressing rod structure 12 which can be blocked, wherein the conveniently-installed sealed sampling hose structure 10 is connected with an internal thread connecting pipe 8; the stoppable convenient sampling operation tube structure 11 is connected with the convenient-to-mount sealed sampling hose structure 10; the lock pipe thread presses the outer wall that rod structure 12 cup jointed just to adorn sealed sample hose construction 10, is favorable to realizing the function of lock pipe, solves the relatively poor problem of seal, still solves the problem of the sample of not being convenient for.

The conveniently-assembled sealed sampling hose structure 10 comprises a sampling hose 101, an annular stop block 102, a sealing ring 103, an external thread sleeve 104 and an installation operation sleeve 105, wherein the annular stop block 102 is sleeved at the left upper end of the sampling hose 101, and the annular stop block 102 and the sampling hose 101 are integrally connected; the left part of the annular stop block 102 is glued with a sealing ring 103; an external thread sleeve 104 is sleeved on the outer wall of the sampling hose 101, and the external thread sleeve 104 is positioned at the right part of the annular stop block 102; the outer wall of the sampling hose 101 is sleeved with an installation operation sleeve 105, the middle part of the left part of the installation operation sleeve 105 is integrally connected with the right part of the external thread sleeve 104, when the sampling hose 101 is installed, the male screw 104 is first screwed into the inside of the female screw-coupling pipe 8 by rotating the male screw 104 through the installation operation sleeve 105, in the process that the external thread sleeve 104 moves towards the left side, the left part of the external thread sleeve 104 can push the annular stop block 102 to move towards the left side, at the moment, the annular stop block 102 can drive the left upper end of the sampling hose 101 to be gradually sleeved on the outer wall of the inlet and outlet pipe 7, the function of facilitating installation of the sampling hose 101 is realized, after the left surface of the sealing ring 103 is contacted with the right part of the sampling pipe 1, accomplish the installation of sample hose 101 promptly, can avoid outside air to get into inside the sample hose 101 through sealing washer 103 to improve the seal of device, solve the not good function of airtight effect.

In this embodiment, referring to fig. 3, the structure 11 of the stoppable sampling operation tube includes a position-limiting plate 111, a pagoda joint 112, a sampling operation tube 113, an internal thread stopple 114 and a stopple rod 115, wherein the opening at the middle part of the right part of the position-limiting plate 111 is integrally connected with the pagoda joint 112; a sampling operation pipe 113 is integrally connected to an opening at the middle part of the left part of the limiting plate 111; the left end of the sampling operation pipe 113 is connected with an internal thread plugging head 114 in a threaded manner, a plugging rod 115 is integrally arranged in the middle of the inner wall of the left side of the internal thread plugging head 114, the plugging rod 115 is inserted into the left side inside the sampling operation pipe 113, when sampling is carried out, the internal thread plugging head 114 is firstly rotated to separate the internal thread plugging head 114 from the sampling operation pipe 113, at the moment, the plugging rod 115 is also moved out from the left end of the sampling operation pipe 113, then, the right side of the sampling operation pipe 113 is held by hand, the left end of the sampling operation pipe 113 is inserted into test solution for sampling, and the sampling operation pipe 113 can avoid the problem of inconvenience in sampling caused by bending compared with the fact that a hose which is easy to bend is used for sampling because the sampling operation pipe 113 is a medical PVC plastic hard pipe.

In this embodiment, referring to fig. 4, the lock pipe thread pressing rod structure 12 includes a square lock pipe operation block 121, an installation through hole 122, a thread through hole 123, a screw pressing rod 124 and an operation column 125, wherein the installation through hole 122 is transversely formed in the middle of the inside of the square lock pipe operation block 121; a threaded through hole 123 is longitudinally formed in the middle upper side of the interior of the square locking pipe operating block 121, and the threaded through hole 123 is communicated with the mounting through hole 122; the inside threaded connection of screw through-hole 123 have screw rod press bar 124, and screw rod press bar 124 upper end and the lower part middle part integration of operation post 125 are connected the setting, before dismantling sampling hose 101, at first rotate screw rod press bar 124 through operation post 125, make screw rod press bar 124 lower extreme push down sampling hose 101, through the cooperation of screw rod press bar 124 with square lock pipe operation piece 121, can make sampling hose 101 lock, avoid the air from sampling hose 101 inside flow, and then avoid the problem that the inside solution of sampling hose 101 flows by oneself, realize the function of lock pipe.

In this embodiment, specifically, the left upper end of the sampling hose 101 is sleeved on the outer wall of the inlet/outlet pipe 7, and the external thread bushing 104 is screwed inside the internal thread connecting pipe 8.

In this embodiment, specifically, the right end of the pagoda joint 112 is inserted into the left lower side inside the sampling hose 101.

In this embodiment, specifically, the square lock tube operation block 121 is sleeved on the outer wall of the sampling hose 101 through the installation through hole 122, and the square lock tube operation block 121 is located on the right side of the installation operation sleeve 105.

In this embodiment, specifically, the sampling hose 101 is a medical PVC plastic hose.

In this embodiment, specifically, the sealing ring 103 is a silica gel sealing ring.

In this embodiment, specifically, the installation and operation casing 105 is a medical PVC plastic casing with a circular longitudinal section, and the outer wall of the installation and operation casing 105 is provided with straight knurls to play a role in skid resistance.

In this embodiment, specifically, the limiting plate 111 is made of a medical PVC plastic plate with a circular longitudinal section.

In this embodiment, the sampling operation tube 113 is a medical PVC plastic hard tube.

In this embodiment, the plugging plug 115 is a medical PVC plastic rod.

In this embodiment, specifically, the operating column 125 adopts a medical PVC plastic head with a circular cross section, and the outer surface of the operating column 125 is provided with a straight knurl.

In this embodiment, it is specific, sampling tube 1 adopt medical PVC plastic tubing, and sampling tube 1 front side middle part has set gradually the scale mark from right to left, wherein the unit of measurement of scale mark is the mL to the scale mark that uses the right side to set up is 0 starting point.

In this embodiment, specifically, the T-shaped connecting block 5 has a circular longitudinal section.

Principle of operation

In the utility model, when the sampling hose 101 is installed, firstly, the external thread sleeve 104 is rotated through the installation operation sleeve 105, so that the external thread sleeve 104 is in threaded connection with the inside of the internal thread connecting pipe 8, in the process that the external thread sleeve 104 moves towards the left side, the left part of the external thread sleeve 104 can push the annular stop block 102 to move towards the left side, at the moment, the annular stop block 102 can drive the left upper end of the sampling hose 101 to be gradually sleeved on the outer wall of the inlet pipe 7, so that the function of conveniently installing the sampling hose 101 is realized, after the left surface of the sealing ring 103 is contacted with the right part of the sampling pipe 1, the installation of the sampling hose 101 is completed, and the sealing ring 103 can prevent external air from entering the inside of the sampling hose 101, so that the tightness of the device is improved, and the function of poor sealing effect is solved; when sampling, firstly, the internal thread plugging head 114 is rotated to separate the internal thread plugging head 114 from the sampling operation tube 113, at the moment, the plugging plug rod 115 is also moved out from the left end of the sampling operation tube 113, then, the right side of the sampling operation tube 113 is held by hand, and the left end of the sampling operation tube 113 is inserted into a test solution for sampling; before dismantling sampling hose 101, at first rotate the screw rod through operation post 125 and press down the depression bar 124, make the screw rod press down the depression bar 124 lower extreme and push down sampling hose 101, press down the cooperation of depression bar 124 and square lock pipe operation piece 121 through the screw rod, can make sampling hose 101 lock die, avoid the air to flow from sampling hose 101 inside, and then avoid the problem that the inside solution of sampling hose 101 flows by oneself, realize the function of lock pipe.

The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention.

Claims

1. The sampling device with good tightness is characterized by comprising a sampling tube (1), a cross-shaped push rod (2), a circular connecting plate (3), a pressing handle (4), a T-shaped connecting block (5), a rubber piston (6), an inlet pipe (7), an inner thread connecting pipe (8), an auxiliary handle (9), a conveniently-installed sealed sampling hose structure (10), a conveniently-installed plugging and sampling operation pipe structure (11) and a pipe-locking thread pressing rod structure (12), wherein the cross-shaped push rod (2) is inserted into the sampling tube (1), one end of the cross-shaped push rod (2) is integrally connected with the circular connecting plate (3), and the other end of the cross-shaped push rod (2) is integrally connected with the pressing handle (4); the middle part of the right part of the circular connecting plate (3) is integrally connected with a T-shaped connecting block (5); a T-shaped mounting hole is formed in the left side of the interior of the rubber piston (6), and the rubber piston (6) is sleeved on the outer wall of the T-shaped connecting block (5) through the T-shaped mounting hole; the outer surface of the rubber piston (6) and the inner surface of the sampling tube (1) are arranged in a sliding friction manner; an inlet and outlet pipe (7) is transversely and integrally connected to an opening at the middle part of the right part of the sampling pipe (1); the middle part of the right part of the sampling tube (1) is integrally connected with an internal thread connecting tube (8), and the inner side of the internal thread connecting tube (8) is provided with an inlet tube (7); the left upper side and the left lower side of the sampling tube (1) are connected with an auxiliary handle (9) in a uniform manner; the conveniently-installed sealed sampling hose structure (10) is connected with the internal thread connecting pipe (8); the stoppable convenient sampling operation tube structure (11) is connected with the convenient-to-mount sealed sampling hose structure (10); the lock pipe thread pressing rod structure (12) is sleeved on the outer wall of the conveniently-installed sealed sampling hose structure (10); the conveniently-assembled sealed sampling hose structure (10) comprises a sampling hose (101), an annular stop block (102), a sealing ring (103), an external thread sleeve (104) and an installation operation sleeve (105), wherein the annular stop block (102) is sleeved at the left upper end of the sampling hose (101), and the annular stop block (102) and the sampling hose (101) are integrally connected; a sealing ring (103) is glued to the left part of the annular stop block (102); an external thread sleeve (104) is sleeved on the outer wall of the sampling hose (101), and the external thread sleeve (104) is positioned at the right part of the annular stop block (102); the outer wall of the sampling hose (101) is sleeved with an installation operation sleeve (105), and the middle part of the left part of the installation operation sleeve (105) is integrally connected with the right part of the external thread sleeve (104).

2. The sampling device with good tightness according to claim 1, characterized in that the stoppable sampling operation tube structure (11) comprises a stopple plate (111), a pagoda joint (112), a sampling operation tube (113), an internal thread stopple head (114) and a stopple rod (115), wherein the opening of the middle part of the right part of the stopple plate (111) is integrally connected with the pagoda joint (112); a sampling operation pipe (113) is integrally connected to an opening at the middle part of the left part of the limiting plate (111); the left end of the sampling operation pipe (113) is in threaded connection with an internal thread plugging head (114), a plugging rod (115) is integrally arranged in the middle of the inner wall of the left side of the internal thread plugging head (114), and the plugging rod (115) is inserted in the left side inside the sampling operation pipe (113).

3. The sampling device with good tightness according to claim 1, characterized in that the lock tube screw thread pressing rod structure (12) comprises a square lock tube operation block (121), an installation through hole (122), a screw thread through hole (123), a screw rod pressing rod (124) and an operation column (125), wherein the middle part inside the square lock tube operation block (121) is transversely provided with the installation through hole (122); the middle upper side inside the square lock pipe operation block (121) is longitudinally provided with a threaded through hole (123), and the threaded through hole (123) is communicated with the mounting through hole (122); the screw rod pressing rod (124) is connected with the inner part of the threaded through hole (123) in a threaded mode, and the upper end of the screw rod pressing rod (124) is integrally connected with the middle of the lower portion of the operating column (125).

4. The sampling device with good tightness according to claim 1, characterized in that the left upper end of the sampling hose (101) is sleeved on the outer wall of the inlet and outlet pipe (7), and the external thread sleeve (104) is connected inside the internal thread connecting pipe (8) in a threaded manner.

5. The sampling device with good sealing performance as claimed in claim 2, wherein the right end of the pagoda joint (112) is inserted into the lower left side inside the sampling hose (101).

6. The sampling device with good tightness according to claim 3, characterized in that the square lock tube operation block (121) is sleeved on the outer wall of the sampling hose (101) through the installation through hole (122), and the square lock tube operation block (121) is positioned at the right side of the installation operation sleeve (105).