CN218036297U

CN218036297U - Sample fixing device of air permeability tester

Info

Publication number: CN218036297U
Application number: CN202221701800.2U
Authority: CN
Inventors: 杨芳妮; 曾维; 彭婷芳; 李祥
Original assignee: Hunan Pomei Instrument Equipment Co ltd
Current assignee: Hunan Pomei Instrument Equipment Co ltd
Priority date: 2022-07-03
Filing date: 2022-07-03
Publication date: 2022-12-13
Anticipated expiration: 2032-07-03

Abstract

The utility model belongs to the technical field of the air permeability tester, concretely relates to sample fixing device of air permeability tester, which comprises a mounting bas, the mount pad internal rotation is connected with the lead screw axle, the epaxial fixedly connected with carousel of lead screw, carousel and mount pad contact, there are the movable block of two symmetric distributions in the outside of lead screw axle through threaded connection, movable block and mount pad sliding connection. Through set up the lead screw axle that has positive and negative screw in the mount pad, set up two movable blocks on the lead screw axle, the movable block can produce the removal of the direction of perhaps carrying on the back mutually in opposite directions through the screw motion between the lead screw axle, then set up the holder on every movable block, the both ends of sample can be fixed to the holder, through rotating the lead screw axle, and the movable block then produces the removal of the direction of perhaps carrying on the back mutually through the screw motion between the lead screw axle, make two holders tighten the sample, the accuracy of air permeability test has been guaranteed.

Description

Sample fixing device of air permeability tester

Technical Field

The utility model relates to an air permeability tester technical field specifically is an air permeability tester's sample fixing device.

Background

The air permeability tester is also called as an air permeability tester and is widely applied to the measurement of gas permeability, solubility coefficient, diffusion coefficient and permeability coefficient of materials such as textiles, sponges, paper products, plastic films, composite films, high-barrier materials, sheets, metal foils and the like at various temperatures. Chinese patent with publication number CN204789254U discloses an air permeability tester, which comprises a housing, a cavity body is fixedly arranged at the top of a passenger, a first opening is arranged at the upper part of the cavity body, the upper part of the first opening is used for placing a test sample, a test sample fixing device is arranged at the upper end of the cavity body, a second opening is arranged at the lower part of the cavity body, the second opening is connected with a pressure sensor, a third opening is further arranged on the cavity body, a pipeline of the third opening is connected with one end of a cylinder, the other end of the cylinder is connected with a piston, the piston is connected with a piston linkage mechanism, the piston linkage mechanism is sleeved on a transmission screw rod, the transmission screw rod is further sleeved with a transmission mechanism, the transmission mechanism is connected with the output end of a motor, and the air permeability tester can rapidly, efficiently and accurately measure the air permeability of materials such as paper, paperboard, sponge and textile fabrics. However, when the sample fixing device of the air permeability tester fixes the sample, the sample cannot be ensured to be in a tensioning state, so that the accuracy of the air permeability test is difficult to ensure, and the sample cannot be clamped stably and is easy to loosen. Therefore, improvements are needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sample fixing device of air permeability tester has solved the above-mentioned problem that exists among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a sample fixing device of air permeability tester, includes the mount pad, the mount pad internal rotation is connected with the lead screw axle, fixedly connected with carousel on the lead screw axle, carousel and mount pad contact, there are two symmetric distribution's movable block in the outside of lead screw axle through threaded connection, movable block and mount pad sliding connection, fixedly connected with holder on the movable block, there is the threaded rod through threaded connection in the holder, the bottom of threaded rod is rotated and is connected with the adapter sleeve, there is spacing bolt through threaded connection in the adapter sleeve, the tail end and the threaded rod sliding connection of spacing bolt, the bottom fixedly connected with clamp plate of adapter sleeve, clamp plate and holder contact, a plurality of evenly distributed teeth of bottom fixedly connected with of clamp plate, tooth and holder sliding connection.

Preferably, the turntable is fixedly connected with a rotating rod, and the rotating rod is made of stainless steel. Through the design of bull stick, be convenient for rotate the carousel.

Preferably, the mounting seat is provided with a guide groove, and a moving block is slidably connected in the guide groove. Through the design of the guide groove, the sliding of the moving block in the mounting seat is facilitated.

Preferably, the top of the threaded rod is fixedly connected with a knob, and the knob is made of stainless steel. Through the design of knob, be convenient for rotate the threaded rod.

Preferably, the threaded rod is provided with a ring groove, and the ring groove is connected with the tail end of the limiting bolt in a sliding manner. Through the design of annular, with spacing bolt cooperation, be convenient for be connected between threaded rod and the adapter sleeve.

Preferably, the pressure plate is provided with balls, and the balls are in contact with the inner surface of the clamping seat. Through the design of the balls, the friction force between the pressing plate and the inner wall of the clamping seat in the downward moving process can be reduced.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a set up the lead screw axle that has positive and negative screw thread in the mount pad, the epaxial two movable blocks that set up of lead screw, the movable block can produce the removal of the direction of perhaps carrying on the back mutually in opposite directions through the screw motion between the lead screw axle, then set up the holder on every movable block, the both ends of sample can be fixed to the holder, through rotating the lead screw axle, the movable block then produces the removal of the direction of perhaps carrying on the back mutually in opposite directions through the screw motion between the lead screw axle to make two holders tighten the sample, guaranteed the accuracy of air permeability test.

2. The utility model discloses set up the threaded rod with holder threaded connection in the holder, the bottom of threaded rod sets up the clamp plate of being connected through the adapter sleeve, the bottom of clamp plate sets up a row of tooth, and set up on the holder with tooth complex groove, through the screw motion between threaded rod and holder like this, can promote the clamp plate downwards, the clamp plate can carry out the centre gripping with the sample with the inner wall of holder, and the tooth can further impress the sample in the complex inslot, keep stable when making the sample centre gripping, difficult pine takes off, thereby the stability of sample air permeability test has been guaranteed.

Drawings

FIG. 1 is a perspective view of the overall structure of the present invention;

fig. 2 is a top cross-sectional view of fig. 1 of the present invention;

fig. 3 is a right side cross-sectional view of fig. 1 of the present invention;

fig. 4 is an enlarged view of the a-portion structure of fig. 3 according to the present invention.

In the figure: 1. a mounting seat; 2. mounting ears; 3. a screw shaft; 4. a turntable; 5. a rotating rod; 6. a moving block; 7. a guide groove; 8. a holder; 9. a threaded rod; 10. a knob; 11. connecting sleeves; 12. a limit bolt; 13. a ring groove; 14. pressing a plate; 15. teeth; 16. and a ball.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1, 2, and 3, a sample fixing device of a permeability tester includes a mounting base 1, a screw shaft 3 is rotatably connected in the mounting base 1, the screw shaft 3 is provided with symmetrically distributed positive and negative threads, a rotary plate 4 is fixedly connected to the screw shaft 3, a rotary rod 5 is fixedly connected to the rotary plate 4, the rotary rod 5 is made of stainless steel, the rotary plate 4 is convenient to rotate by the design of the rotary rod 5, and the rotary plate 4 is in contact with the mounting base 1.

Referring to fig. 1, 2 and 3, two moving blocks 6 are symmetrically distributed outside the threaded shaft 3 through threads, the moving blocks 6 are slidably connected with the mounting base 1, a guide groove 7 is formed in the mounting base 1, the moving blocks 6 are slidably connected in the guide groove 7, and the sliding of the moving blocks 6 in the mounting base 1 is facilitated through the design of the guide groove 7.

Referring to fig. 3 and 4, a clamping seat 8 is fixedly connected to a moving block 6, a threaded rod 9 is connected to the inside of the clamping seat 8 through threads, a knob 10 is fixedly connected to the top of the threaded rod 9, the knob 10 is made of stainless steel, the threaded rod 9 is convenient to rotate through the design of the knob 10, a connecting sleeve 11 is rotatably connected to the bottom of the threaded rod 9, a limiting bolt 12 is connected to the inside of the connecting sleeve 11 through threads, the tail end of the limiting bolt 12 is slidably connected to the threaded rod 9, an annular groove 13 is formed in the threaded rod 9, the annular groove 13 is slidably connected to the tail end of the limiting bolt 12, and is matched with the limiting bolt 12 through the design of the annular groove 13, so that the threaded rod 9 is conveniently connected to the connecting sleeve 11, a pressing plate 14 is fixedly connected to the bottom of the connecting sleeve 11, the pressing plate 14 is in contact with the clamping seat 8, a plurality of teeth 15 are uniformly distributed and are fixedly connected to the bottom of the pressing plate 14, the teeth 15 are slidably connected to the clamping seat 8, a ball 16 is arranged on the pressing plate 14, the ball 16 is in contact with the inner surface of the clamping seat 8, and through the design of the ball 16, so that the friction force with the inner wall of the clamping seat 8 in the downward moving process of the pressing plate 14 can be reduced.

The utility model discloses the concrete implementation process as follows: during the use, wholly fix installation ear 2 on the predetermined position of air permeability tester through the bolt, then get the sample that awaits measuring, and insert the both ends of sample respectively in holder 8, and be located the position of clamp 14 below, then rotate knob 10, knob 10 drives threaded rod 9 and rotates, threaded rod 9 then produces downstream through the screw motion with between holder 8, threaded rod 9 then drives clamp plate 14 through adapter sleeve 11 and moves down this moment, clamp plate 14 is cooperating the inner wall of holder 8 and is centre gripping the tip of sample, and tooth 15 of clamp plate 14 bottom can further impress the sample into the complex inslot, keep stable when making the sample centre gripping, difficult pine takes off, and then guaranteed the stability of sample air permeability test, then rotate bull stick 5, bull stick 5 drives carousel 4 and rotates, carousel 4 drives lead screw shaft 3 and rotates, and movable block 6 then produces the removal of opposite directions through the screw motion between lead screw shaft 3, and then make two holders 8 tighten the sample, guaranteed the accuracy of air permeability test.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sample fixing device of air permeability tester, includes mount pad (1), its characterized in that: the utility model discloses a lead screw assembly, including mount pad (1), screw shaft (3), fixedly connected with carousel (4) on screw shaft (3), carousel (4) and mount pad (1) contact, there are two symmetric distribution's movable block (6) outside of screw shaft (3) through threaded connection, movable block (6) and mount pad (1) sliding connection, fixedly connected with holder (8) on movable block (6), there are threaded rod (9) through threaded connection in holder (8), the bottom of threaded rod (9) is rotated and is connected with adapter sleeve (11), there are spacing bolt (12) through threaded connection in adapter sleeve (11), the tail end and threaded rod (9) sliding connection of spacing bolt (12), bottom fixedly connected with clamp plate (14) of adapter sleeve (11), clamp plate (14) and holder (8) contact, the bottom fixedly connected with a plurality of evenly distributed tooth (15) of clamp plate (14), tooth (15) and holder (8) sliding connection.

2. The sample holding device for an air permeability tester according to claim 1, wherein: the rotary table (4) is fixedly connected with a rotary rod (5), and the rotary rod (5) is made of stainless steel.

3. The sample holding device for an air permeability tester according to claim 1, wherein: a guide groove (7) is formed in the mounting seat (1), and a moving block (6) is connected in the guide groove (7) in a sliding mode.

4. The sample holding device for an air permeability tester according to claim 1, wherein: the top fixedly connected with knob (10) of threaded rod (9), knob (10) are stainless steel material.

5. The sample holding device for an air permeability tester according to claim 1, wherein: the threaded rod (9) is provided with an annular groove (13), and the annular groove (13) is connected with the tail end of the limiting bolt (12) in a sliding mode.

6. The sample holding device for an air permeability tester according to claim 1, wherein: the pressing plate (14) is provided with balls (16), and the balls (16) are in contact with the inner surface of the clamping seat (8).