Flow-adjustable suction tube

Abstract

The utility model belongs to the technical field of medical instruments and discloses a flow-adjustable suction tube which comprises a suction tube body, the tail end of the suction tube body is fixedly connected with a connector, the suction tube body is provided with an adjuster used for adjusting the inner diameter of the suction tube body, and the adjuster comprises a shell and a cover plate. The rotating angle of the cam can be accurately controlled by arranging the clamping block structure and the rack, then the distance of the second arc-shaped clamping plate pushed by the cam is accurately controlled, and the clamping degree of the suction tube body clamped by the first arc-shaped clamping plate and the second arc-shaped clamping plate can be accurately controlled; the inner diameter of the suction tube body can be finely adjusted, the operation accuracy and efficiency are improved, the second arc-shaped clamping plate cannot move when the suction tube body is pulled in the using process, the adjusted inner diameter of the suction tube body cannot be changed, and the accuracy and stability in the using process are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, in particular to a flow-adjustable suction tube. Background Art

[0002] A sputum suction tube, used in respiratory, anesthesia, and emergency medical equipment, is a medical device used to remove respiratory secretions. It is primarily used to remove secretions from the trachea, bronchi, and oral cavity to maintain airway patency and prevent infection and other respiratory diseases.

[0003] The patent with announcement number CN218075971U discloses a suction tube body with convenient guidance. The patent includes a suction tube body, a throttling mechanism is provided at the right end of the suction tube body, and the throttling mechanism includes a shell, a chamber is provided inside the shell, and the interior of the chamber is fixedly connected with a guide frame, and the bottom of the guide frame is fixedly connected with a placement frame, and the top of the placement frame is provided with a suction tube body connecting pipe, and the suction tube body connecting pipe is connected to the suction tube body, and the top of the guide frame is slidably connected with a pressure block, and the top of the shell is provided with a knob, and the bottom of the knob is fixedly connected with a threaded rod, and the threaded rod passes through the shell into the chamber, and the outer surface of the threaded rod is threadedly connected with a nut, and the outer surface of the nut is fixedly connected with a connecting rod, and the bottom of the connecting rod is fixedly connected with the pressure block, and the nut is moved downward by rotating the threaded rod, and the pressure block is moved downward along the guide frame to flatten the suction tube body connecting pipe, thereby reducing the cross-sectional area of ​​the suction tube body connecting pipe, thereby regulating the flow rate.

[0004] However, the above patent drives the threaded rod to rotate by rotating the knob, and then drives the pressure block to move downward along the guide frame to flatten the suction tube body. However, the knob does not have an accurate scale. When the medical staff turns it, they cannot get the change of the suction tube body flow by sight or touch. They can only judge by feeling, and cannot accurately adjust the suction tube body flow, which reduces the accuracy and efficiency of use. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the present invention provides a flow-adjustable suction tube, which can sense the change of the flow of the suction tube body by touch and can accurately adjust the flow of the suction tube body.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a flow-adjustable suction tube, comprising a suction tube body, a connector fixedly connected to the end of the suction tube body, and a regulator for adjusting the inner diameter of the suction tube body provided on the suction tube body;

[0007] The regulator includes an outer shell and a cover plate, the cover plate is hinged to the top of the outer shell, and the top of the cover plate and the bottom of the outer shell are penetrated by holes that are adapted to the shape of the suction tube body. One side and both ends of the inner side of the outer shell are respectively provided with connected mounting grooves 1 and 2, and the mounting grooves 1 and 2 are provided with clamping components for adjusting the flow of the suction tube body.

[0008] Preferably, the clamping assembly includes an arc-shaped clamping plate 1 and an arc-shaped clamping plate 2, the arc-shaped clamping plate 1 is fixedly installed on one side of the mounting groove 1, and sliding rods are fixedly installed in the two mounting grooves 2. The arc-shaped clamping plate 2 is arranged in the mounting groove 1 and the mounting groove 2, and is slidably sleeved on the two sliding rods to achieve sliding. The surfaces of the two sliding rods are sleeved with a spring 1 fixedly connected to the side of the mounting groove 2 away from the arc-shaped clamping plate 2 and the surface of the arc-shaped clamping plate 2.

[0009] Preferably, a cam is rotatably provided between one end of the mounting groove 1 away from the arc-shaped clamping plate 2 and the arc-shaped clamping plate 2 to push the arc-shaped clamping plate 2, and an L-shaped turning handle that movably passes through the cover plate is fixed on the upper end of the cam.

[0010] Preferably, the clamping surfaces of the arc-shaped splint 1 and the arc-shaped splint 2 are respectively an inner concave arc surface and an outer convex arc surface that can completely match each other, and the suction tube body passes through the gap between the arc-shaped splint 1 and the arc-shaped splint 2.

[0011] Preferably, an annular strip is fixedly provided on the top of the cover plate, and a plurality of racks arranged in an annular array are provided on the annular strip. A clamping block structure is provided in the turning handle, and the clamping block structure includes a clamping head for clamping with the racks.

[0012] Preferably, a slide groove matching the shape of the clamping head is provided at the bottom of the turning handle, the clamping head is located in the slide groove and can slide longitudinally, and a pull rod that movably passes through the turning handle and extends to the outside is fixed to the upper end of the clamping head.

[0013] Preferably, a second spring is sleeved on the outside of the draw rod and is fixedly connected to the top of the slide groove and the top of the clamping head.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] The utility model provides a clamping head and a rack, and the clamping head rotates on the annular strip. Every time a rack is turned, the medical staff will feel a tactile sensation by turning the handle, and can know the adjustment degree of the flow of the suction tube body according to the tactile sensation, and accurately control the distance that the arc-shaped splint 2 is pushed by the cam, and can accurately control the degree to which the suction tube body is clamped by the arc-shaped splint 1 and the arc-shaped splint 2, and can accurately fine-tune the inner diameter of the suction tube body, thereby improving the accuracy and efficiency of the operation, and the arc-shaped splint 1 and the arc-shaped splint 2 cooperate to clamp and completely close the suction tube body, without the need for adjustment through the suction equipment, and the operation is simple and convenient, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall axonometric front structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall axonometric front cross-sectional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the closed structure of the arc-shaped splint 1 and the arc-shaped splint 2 of the utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the rack and the clamping block structure of the utility model;

[0020] Figure 5 for Figure 4 A magnified schematic diagram of the structure in the middle.

[0021] In the figure: 1. Suction tube body; 2. Connector;

[0022] 3. Regulator; 31. Housing; 311. Mounting slot 1; 312. Mounting slot 2; 32. Clamping assembly; 321. Arc-shaped splint 1; 322. Arc-shaped splint 2; 323. Sliding rod; 324. Spring 1; 325. Cam; 326. Turning handle;

[0023] 33. Perforation; 34. Annular strip; 341. Rack; 35. Block structure; 36. Cover plate; 351. Chuck; 352. Slide; 353. Pull rod; 354. Spring 2. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] like Figures 1 to 5As shown, the utility model provides a flow-adjustable suction tube, including a suction tube body 1. The suction tube body 1 is made of flexible plastic and can be bent at will, which is convenient for guiding. The end of the suction tube body 1 is fixedly connected to a connector 2, and the suction tube body 1 is provided with a regulator 3 for adjusting the inner diameter of the suction tube body 1; the regulator 3 includes an outer shell 31 and a cover plate 36, the cover plate 36 is hinged to the top of the outer shell 31, and a through hole 33 that is adapted to the shape of the suction tube body 1 is opened through the top of the cover plate 36 and the bottom of the outer shell 31, a mounting groove 1 311 is opened on one side of the inner side of the outer shell 31, and mounting grooves 2 312 are symmetrically opened at both ends of the outer shell 31, and the mounting groove 1 311 is connected to the two mounting grooves 2 312, and a clamping component 32 for adjusting the flow of the suction tube body 1 is provided in the mounting groove 1 311 and the mounting groove 2 312.

[0026] refer to Figure 2 The clamping assembly 32 includes an arc-shaped splint 1 321 and an arc-shaped splint 2 322. The arc-shaped splint 1 321 is fixedly mounted on one side of the mounting groove 1 311. Slide rods 323 are fixedly mounted at both ends of the two mounting grooves 2 312. Slide holes that match the shape of the slide rods 323 are opened at both ends of the arc-shaped splint 2 322. The slide holes on both sides of the arc-shaped splint 2 322 are slidably sleeved on the two slide rods 323. The surfaces of the two slide rods 323 are sleeved with a spring 1 324. The two ends of the spring 1 324 are respectively attached to one side of the inner cavity of the mounting groove 2 312 and The surface of the second arc splint 322 is fixed, and the second arc splint 322 abuts against the contact surface of the second mounting groove 312 to avoid the generation of a virtual position that causes the second arc splint 322 to shake when moving. A cam 325 is provided between the end of the first mounting groove 311 away from the second arc splint 322 and the second arc splint 322 to push the second arc splint 322. When the cam 325 remains in its original position and does not rotate, its surface is also in contact with the side of the second arc splint 322. An L-shaped turning handle 326 that is movable and passes through the cover plate 36 is fixed to the upper end of the cam 325.

[0027] refer to Figure 3 The clamping surfaces of the arc-shaped splint 1 321 and the arc-shaped splint 2 322 are respectively an inner concave arc surface and an outer convex arc surface that can be completely matched. The suction tube body 1 passes through the gap between the arc-shaped splint 1 321 and the arc-shaped splint 2 322. When the suction tube body 1 needs to be completely closed, the handle 326 is turned 90° counterclockwise. The gap between the arc-shaped splint 1 321 and the arc-shaped splint 2 322 is very small, and the suction tube body 1 can be clamped to a closed state.

[0028] refer to Figure 4, a ring strip 34 is fixed on the top of the cover plate 36, the center angle of the ring strip 34 is 90 degrees, and a number of racks 341 arranged in a ring array are provided on the ring strip 34, and a block structure 35 is provided in the turn handle 326, and the block structure 35 includes a clamping head 351 for clamping with the rack 341. When the turn handle 326 is in the initial position, the clamping head 351 is clamped with the first rack 341. The more the number of racks 341, the finer the adjustment of the flow rate of the suction tube body 1. The number of racks 341 can be set according to demand. If the number of racks 341 is 20, then two adjacent ones are clamped together. The angle between the racks 341 is 4.5°. Every time the handle 326 rotates a rack 341, the handle 326 rotates 4.5°. At the same time, the cam 325 moves the arc-shaped clamp 2 322 toward the position of the arc-shaped clamp 1 321 by a certain distance. Assuming that the flow rate of the unclamped suction tube body 1 is 100, the flow rate of the suction tube body 1 is reduced by 5 until the handle 326 is rotated to engage with the last rack 341. At this time, the cam 325 is just rotated 90°. At this time, the arc-shaped clamp 2 322 and the arc-shaped clamp 1 321 clamp the suction tube body 1 to its flow rate of 0.

[0029] refer to Figure 5 The bottom of the handle 326 is provided with a slide groove 352 which matches the shape of the clamping head 351. The structure of the slide groove 352 is as follows: Figure 5 As shown, the clamping head 351 is located in the sliding groove 352 and can slide longitudinally. The upper end of the clamping head 351 is fixed with a pull-out rod 353 that is movable and passes through the turning handle 326 and extends to the outside. The top of the pull-out rod 353 is threadedly fixed with a round block shown in the figure. The installation of the pull-out rod 353 is facilitated by threaded fixation. A sliding hole for the pull-out rod 353 to be pulled is provided at the top of the turning handle 326. A spring 2 354 is provided on the outside of the pull-out rod 353. The two ends of the spring 2 354 are respectively fixed to the top of the sliding groove 352 and the top of the clamping head 351.

[0030] Principle and process of this utility model:

[0031] When the suction tube body 1 is used, the medical staff can rotate the handle 326 to a certain angle as needed, and the clamping head 351 rotates on the annular strip 34. Every time the rack 341 is rotated, the medical staff will have a tactile sensation through the handle 326, and can know the adjustment degree of the flow rate of the suction tube body 1 according to the tactile sensation, and can accurately adjust the flow rate of the suction tube body 1 to improve the accuracy and efficiency of use. When the handle 326 is rotated to a specified angle, the clamping head 351 is engaged with the rack 341 at the corresponding position, and the cam 325 is rotated to a specified angle. The cam 325 pushes the arc splint 2 322 along the slide bar 323 toward the arc splint 1 321 for a certain distance. The arc splint 2 322 and the arc splint 1 321 give the suction tube body 1 a certain clamping force, causing it to deform, thereby The cross-section of the suction tube body 1 becomes smaller, which reduces the flow of the obstruction. When the suction tube body 1 needs to be completely closed, the handle 326 is rotated until the clamping head 351 is engaged with the last rack 341. At this time, the cam 325 is just rotated 90°. At this time, the arc-shaped splint 2 322 and the arc-shaped splint 1 321 clamp the suction tube body 1 to its flow rate of 0. When you want to increase the flow rate of the suction tube body 1 later, you only need to turn the handle 326 smoothly. If you want to adjust the flow rate of the suction tube body 1 to a fully open state, the medical staff only needs to pull up the draw rod 353, and the draw rod 353 will slide the clamping head 351 into the slide groove 352. The clamping head 351 will no longer be engaged with the rack 341. Under the action of spring 1 324, the handle 326 is rotated to its original position. The operation is simple and convenient.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flow-adjustable suction tube, comprising a suction tube body (1), wherein the end of the suction tube body (1) is fixedly connected to a connector (2), characterized in that: The suction tube body (1) is provided with a regulator (3) for adjusting the inner diameter of the suction tube body (1); The regulator (3) includes a shell (31) and a cover plate (36), wherein the cover plate (36) is hinged to the top of the shell (31), and a through hole (33) adapted to the shape of the suction tube body (1) is provided through the top of the cover plate (36) and the bottom of the shell (31), and a connecting mounting groove 1 (311) and a connecting mounting groove 2 (312) are provided on one side and both ends of the interior of the shell (31), and a clamping assembly (32) for adjusting the flow of the suction tube body (1) is provided in the mounting groove 1 (311) and the mounting groove 2 (312).

2. The flow-adjustable suction tube according to claim 1, characterized in that: The clamping assembly (32) includes an arc-shaped clamping plate 1 (321) and an arc-shaped clamping plate 2 (322), wherein the arc-shaped clamping plate 1 (321) is fixedly mounted on one side of the mounting groove 1 (311), and two sliding rods (323) are fixedly mounted in the two mounting grooves 2 (312). The arc-shaped clamping plate 2 (322) is arranged in the mounting groove 1 (311) and the mounting groove 2 (312), and is slidably mounted on the two sliding rods (323) to achieve sliding. The surfaces of the two sliding rods (323) are mounted with a spring 1 (324) fixedly connected to the side of the mounting groove 2 (312) away from the arc-shaped clamping plate 2 (322) and the surface of the arc-shaped clamping plate 2 (322).

3. The flow-adjustable suction tube according to claim 2, characterized in that: A cam (325) is rotatably provided between the first installation groove (311) and the second arc-shaped clamping plate (322), which is away from one end of the second arc-shaped clamping plate (322) and pushes the second arc-shaped clamping plate (322). An L-shaped turning handle (326) that movably penetrates the cover plate (36) is fixed on the upper end of the cam (325).

4. The flow-adjustable suction tube according to claim 2, characterized in that: The clamping surfaces of the arc-shaped clamping plate 1 (321) and the arc-shaped clamping plate 2 (322) are respectively an inner concave arc surface and an outer convex arc surface that can be completely matched, and the suction tube body (1) passes through the gap between the arc-shaped clamping plate 1 (321) and the arc-shaped clamping plate 2 (322).

5. The flow-adjustable suction tube according to claim 3, characterized in that: An annular strip (34) is fixedly provided on the top of the cover plate (36), and a plurality of racks (341) arranged in an annular array are provided on the annular strip (34). A clamping block structure (35) is provided in the turning handle (326), and the clamping block structure (35) includes a clamping head (351) that is clamped with the racks (341).

6. The flow-adjustable suction tube according to claim 3, characterized in that: The bottom of the turning handle (326) is provided with a slide groove (352) that matches the shape of the clamping head (351). The clamping head (351) is located in the slide groove (352) and can slide longitudinally. The upper end of the clamping head (351) is fixed with a pull rod (353) that movably penetrates the turning handle (326) and extends to the outside.

7. The flow-adjustable suction tube according to claim 6, characterized in that: The outer side of the draw rod (353) is provided with a second spring (354) fixedly connected to the top of the slide groove (352) and the top of the clamping head (351).

Images