CN221145921U

CN221145921U - Polymer pipe flow tester

Info

Publication number: CN221145921U
Application number: CN202323256098.0U
Authority: CN
Inventors: 方伟平
Original assignee: Guangzhou Chenyu Scientific Instrument Co ltd
Current assignee: Guangzhou Chenyu Scientific Instrument Co ltd
Priority date: 2023-11-30
Filing date: 2023-11-30
Publication date: 2024-06-14
Anticipated expiration: 2033-11-30

Abstract

The utility model relates to the field of catheter flow test, and discloses a high polymer catheter flow tester, which comprises a tripod, wherein the tripod comprises a mounting seat, a convex frame is arranged on the side surface of the mounting seat, supporting legs are hinged on the convex frame, a hinge shaft formed at a hinge position is a rotating shaft, three groups of supporting legs are arranged in an array manner along the circumferential direction, the axes of circles used by the array coincide with the vertical central line of the mounting seat, power connection is realized between two adjacent rotating shafts through a power connecting piece, the three rotating shafts synchronously rotate in the same direction, a limiting piece is arranged outside one rotating shaft among the three rotating shafts, the limiting piece is switched between a limiting state and a releasing state, the limiting piece in the limiting state is used for enabling the rotating shaft to generate unidirectional deflection of the supporting legs close to the mounting seat, the limiting piece in the releasing state is used for removing the limitation of the rotating shaft, a main shaft which is axially vertical and is arranged in a lifting manner is arranged on the mounting seat, and the upper end of the main shaft is provided with a connecting seat.

Description

Polymer pipe flow tester

Technical Field

The utility model relates to the technical field of flow testing, in particular to the field of conduit flow testing.

Background

The high molecular catheter flow tester is a device for testing the flow of catheter-type medical instruments, and generally uses a volume measurement method, namely, water flows out of a constant liquid level container with a height of 1m from an outlet of a catheter, the volume of water flowing into the measuring cylinder is collected and tested by a graduated measuring cylinder within a set time, the constant liquid level container is generally placed on a tripod in the use process of the catheter flow tester, the height of the constant liquid level container from a water outlet of the catheter is required to be 1000mm, the error range is (-5, 5) mm, however, in the actual use process, the influence of a limited use environment and the type of the catheter to be tested are different, and the requirement on the height is also different, so that the tripod is required to be continuously adjusted to ensure that the height of the constant liquid level container is within the set range, and the adjustment process is more troublesome and complex.

Based on the above, the utility model provides a high polymer catheter flow tester.

Disclosure of utility model

In order to solve the problems mentioned in the background, the utility model provides a high polymer catheter flow tester.

In order to achieve the technical purpose, the technical scheme adopted by the utility model is as follows.

The utility model provides a polymer pipe flow tester, includes the tripod, and the tripod includes the mount pad, and the side of mount pad is provided with the convex frame, articulates on the convex frame and installs the supporting leg and articulated the articulated axle that department formed as the pivot, and the supporting leg is provided with three along the circumference direction array and the axis of the circle that the array was used coincides with the vertical central line of mount pad, realizes power connection and three pivots synchronous syntropy rotation through power connection piece between two adjacent pivots;

The limiting piece is arranged to be switched between a limiting state and a loosening state, the limiting piece in the limiting state is used for enabling the rotating shaft to generate unidirectional deflection of the supporting leg close to the mounting seat, and the limiting piece in the loosening state removes the limitation on the rotating shaft;

the installation seat is provided with a main shaft which is vertical in the axial direction and is arranged in a lifting way, and the upper end of the main shaft is provided with a connecting seat.

Further, the limiting piece comprises an outer shell connected with the mounting seat, the rotating shaft penetrates through the outer shell, a pawl is arranged in the outer shell, a ratchet wheel is arranged outside the rotating shaft, when the ratchet wheel moves, the ratchet wheel is in power connection with the rotating shaft, and initially, the pawl is inserted into the ratchet wheel and matched with the ratchet wheel to enable the rotating shaft to deflect unidirectionally, wherein the supporting leg of the rotating shaft is close to the mounting seat.

Further, a spring is arranged between the ratchet wheel and the inner wall of the outer shell, an annular groove is arranged on the end face of the ratchet wheel, the annular groove and the spring are respectively positioned on two sides of the ratchet wheel, a compression bar is arranged on the outer shell along the axial line direction of the rotating shaft, one end of the compression bar is slidably positioned in the annular groove, and the other end of the compression bar extends out of the outer shell.

Further, the ratchet wheel is arranged outside the rotating shaft through a spline.

Further, a sleeve hole is formed in the mounting seat, the axial lead of the sleeve hole coincides with the vertical central line of the mounting seat, the main shaft is sleeved in the sleeve hole and forms sliding fit in the vertical direction, and the rotating ring is arranged on the external threads of the threaded section of the main shaft.

Further, the inner wall of the trepanning is provided with a bulge, the outer circular surface of the threaded section of the main shaft is provided with a chute, and the chute and the bulge form sliding fit in the vertical direction.

Further, a limiting frame is arranged on the mounting seat, and the upper end face and the lower end face of the rotating ring are respectively contacted with the limiting frame and the mounting seat.

Further, the rotary ring comprises a limiting section limited by the limiting frame and the mounting seat, a screwing section positioned above the limiting section and a connecting section arranged between the limiting section and the mounting seat.

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

1. According to the scheme, the deflection angle of the supporting leg of the tripod is adjusted, the height of the connecting seat is subjected to rough adjustment, namely the height of the constant liquid level container is subjected to rough adjustment, then the main shaft is moved by screwing the rotating ring, the height of the constant liquid level container is subjected to fine adjustment, and the constant liquid level container and the rotating ring are matched, so that the position of the constant liquid level container is accurately adjusted, and the adjustment process is simple and convenient;

2. The power connecting piece is arranged to enable any supporting leg to deflect, and the other two supporting legs synchronously rotate in the same direction, so that the contact points of the three supporting legs and the ground form an equilateral triangle, and the support is more stable;

3. When not in use, the supporting legs can be reversely deflected to enable the supporting legs to be parallel to the main shaft, and the tripod is more convenient to store.

Drawings

FIG. 1 is a schematic diagram of a conventional conduit flow tester;

FIG. 2 is a schematic diagram of the structure of the present utility model;

FIG. 3 is a schematic illustration of the connection of the mounting base to the support leg;

FIG. 4 is an internal schematic view of the stop member;

FIG. 5 is a schematic diagram of the connection of the mounting base to the spindle;

Fig. 6 is an exploded view of the mount and swivel ring.

The reference numerals in the drawings are:

1. a mounting base; 2. a convex frame; 3. support legs; 4. a power connection; 5. a limiting piece; 501. a ratchet wheel; 502. a pawl; 503. a spring; 504. a ring groove; 505. a compression bar; 6. a main shaft; 7. a connecting seat; 8. a chute; 9. trepanning; 10. a protrusion; 11. a limiting frame; 12. a rotating ring.

Detailed Description

In order to further describe the technical means and effects adopted by the present utility model for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present utility model with reference to the accompanying drawings and preferred embodiments.

Referring to fig. 1-6, a high polymer catheter flow tester comprises a tripod, and the core of the scheme is that the height of a constant liquid level container is adjusted through the height adjustment of the tripod, and other structures of a guide rod flow tester can be realized in the prior art and are not described in detail.

Referring to fig. 3, the tripod includes a mounting seat 1, a convex frame 2 is provided on a side surface of the mounting seat 1, supporting legs 3 are hinged on the convex frame 2, and a hinge shaft formed at a hinge position is named as a rotating shaft, the supporting legs 3 are provided with three groups of circles in array along a circumferential direction, the axes of the circles used by the array coincide with a vertical central line of the mounting seat 1, two adjacent rotating shafts are in power connection through a power connecting piece 4, and the three rotating shafts are synchronously rotated in the same direction, so that one supporting leg 3 deflects, then the other two supporting legs 3 deflect at the same angle, the power connecting piece 4 can be realized in the prior art, and the synchronous and same-direction rotation can be realized only by two groups of power connecting pieces 4.

The outside of any rotating shaft is provided with a limiting piece 5, specifically, referring to fig. 4, the limiting piece 5 comprises an outer shell connected with a mounting seat 1, the rotating shaft penetrates through the outer shell, a pawl 502 and a ratchet wheel 501 sleeved on the rotating shaft through a spline are arranged in the outer shell, when the ratchet wheel 501 moves, the ratchet wheel 501 is in power connection with the rotating shaft, the pawl 502 is inserted into the ratchet wheel 501 and is matched with the ratchet wheel 501 at the beginning, the rotating shaft deflects unidirectionally, a supporting leg 3 approaches the mounting seat 1, a spring 503 is arranged between the ratchet wheel 501 and the inner wall of the outer shell, an annular groove 504 is arranged on the end face of the ratchet wheel 501, the annular groove 504 and the spring 503 are respectively positioned on two sides of the ratchet wheel 501, a pressing rod 505 is arranged on the outer shell along the axial line direction of the rotating shaft, one end of the pressing rod 505 is slidingly positioned in the annular groove 504, and the other end of the pressing rod extends out of the outer shell; initially, the supporting leg 3 is parallel to the vertical center line of the mounting seat 1, so that the tripod can be stored conveniently, when in use, the pressing rod 505 is pressed to separate the ratchet 501 from the pawl 502, then the supporting leg 3 is deflected towards the outer side, after the deflection is finished, the hand is loosened, the spring 503 enables the ratchet 501 and the pawl 502 to reset, and then the tripod can be erected on the ground.

Referring to fig. 5 and 6, a sleeve hole 9 is formed in the mounting seat 1, the axial lead of the sleeve hole 9 coincides with the vertical central line of the mounting seat 1, a main shaft 6 is sleeved in the sleeve hole 9, further, a protrusion 10 is arranged on the inner wall of the sleeve hole 9, the main shaft 6 comprises a threaded section, a sliding groove 8 is formed in the outer circular surface of the threaded section, and the sliding groove 8 and the protrusion 10 form sliding fit in the vertical direction.

The upper end of the main shaft 6 is provided with a connecting seat 7 for installing a constant liquid level container.

The rotary ring 12 is arranged on the external thread of the thread section of the main shaft 6, the limit frame 11 is arranged on the mounting seat 1, the upper end surface of the rotary ring 12 is contacted with the limit frame 11, the lower end surface is contacted with the mounting seat 1, and the rotary ring 12 is limited to rotate only and cannot move, so that the main shaft 6 can move along the vertical direction when the rotary ring 12 is screwed.

In a preferred embodiment, referring to fig. 6, the rotary ring 12 includes a limiting section limited by the limiting frame 11, a screwing section located above the limiting section, and a connecting section disposed therebetween, in the sense that a worker drives the rotary ring 12 to rotate by rotating the screwing section, the periphery of the screwing section is not shielded, and screwing is more convenient.

The working principle of the utility model is as follows:

First, the pressing bar 505 is pressed and the supporting leg 3 is deflected outwards, so that the tripod is opened, and the tripod is erected on the ground;

Then, the spindle 6 is moved in the vertical direction by screwing the rotary ring 12, and the spindle moves together with the constant liquid level container with the connection base 7, thereby adjusting the height of the constant liquid level container.

In addition, a distance sensor may be disposed at the bottom of the connection seat 7, for detecting the height of the connection seat 7, so as to obtain the height of the constant liquid level container.

The present utility model is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present utility model.

Claims

1. The utility model provides a polymer pipe flow tester, includes tripod, its characterized in that: the tripod comprises a mounting seat (1), a convex frame (2) is arranged on the side surface of the mounting seat (1), supporting legs (3) are hinged on the convex frame (2), a hinge shaft formed at the hinge position is a rotating shaft, three groups of supporting legs (3) are arranged in an array manner along the circumferential direction, the axial lead of a circle used by the array coincides with the vertical central line of the mounting seat (1), and two adjacent rotating shafts are connected in a power manner through a power connecting piece (4) and synchronously rotate in the same direction;

Among the three rotating shafts, only one rotating shaft is provided with a limiting piece (5) at the outer part, the limiting piece (5) is arranged to be switched between a limiting state and a releasing state, the limiting piece (5) in the limiting state is used for enabling the rotating shaft to generate unidirectional deflection of the supporting leg (3) close to the mounting seat (1), and the limiting piece (5) in the releasing state withdraws the limitation of the rotating shaft;

the installation seat (1) is provided with a main shaft (6) which is vertical in the axial direction and is arranged in a lifting manner, and the upper end of the main shaft (6) is provided with a connecting seat (7).

2. The polymeric catheter flow meter of claim 1, wherein: the limiting piece (5) comprises an outer shell connected with the mounting seat (1), the rotating shaft penetrates through the outer shell, a pawl (502) is arranged in the outer shell, a ratchet wheel (501) is arranged outside the rotating shaft, when the ratchet wheel (501) moves, the ratchet wheel (501) is in power connection with the rotating shaft, and initially, the pawl (502) is inserted into the ratchet wheel (501) and matched with the ratchet wheel to enable the rotating shaft to deflect unidirectionally, wherein the supporting leg (3) is close to the mounting seat (1).

3. The polymeric catheter flow meter of claim 2, wherein: a spring (503) is arranged between the ratchet wheel (501) and the inner wall of the outer shell, an annular groove (504) is arranged on the end face of the ratchet wheel (501), the annular groove (504) and the spring (503) are respectively located on two sides of the ratchet wheel (501), a pressing rod (505) is arranged on the outer shell along the axial line direction of the rotating shaft, one end of the pressing rod (505) is slidably located in the annular groove (504), and the other end of the pressing rod extends out of the outer shell.

4. The polymeric catheter flow meter of claim 2, wherein: the ratchet wheel (501) is arranged outside the rotating shaft through a spline.

5. A polymeric catheter flow meter according to claim 1 or 3, wherein: a sleeve hole (9) is formed in the mounting seat (1), the axial lead of the sleeve hole (9) coincides with the vertical central line of the mounting seat (1), the main shaft (6) is sleeved in the sleeve hole (9) and forms sliding fit in the vertical direction, and a rotating ring (12) is mounted on the external threads of the threaded section of the main shaft (6).

6. The polymeric catheter flow meter of claim 5, wherein: the inner wall of the trepanning (9) is provided with a bulge (10), the outer circular surface of the thread section of the main shaft (6) is provided with a chute (8), and the chute (8) and the bulge (10) form sliding fit in the vertical direction.

7. The polymeric catheter flow meter of claim 5, wherein: the mounting seat (1) is provided with a limiting frame (11), and the upper end face and the lower end face of the rotating ring (12) are respectively contacted with the limiting frame (11) and the mounting seat (1).

8. The polymeric catheter flow meter of claim 7, wherein: the rotary ring (12) comprises a limiting section limited by the limiting frame (11) and the mounting seat (1), a screwing section positioned above the limiting section and a connecting section arranged between the limiting section and the mounting seat.