CN215460815U

CN215460815U - High-pressure syringe convenient to height-adjusting

Info

Publication number: CN215460815U
Application number: CN202121147198.8U
Authority: CN
Inventors: 王宇飞
Original assignee: Dongguan Yixing Medical Technology Co ltd
Current assignee: Dongguan Yixing Medical Technology Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2022-01-11
Anticipated expiration: 2031-05-26

Abstract

The utility model discloses a high-pressure injector convenient for height adjustment, belongs to the field of high-pressure injectors, and solves the problem that the height of the conventional high-pressure injector is inconvenient to adjust. It includes the support column include slide bar and sleeve, the slide bar slides and pegs graft in the sleeve, telescopic upper portion is equipped with the casing, the casing in be equipped with first supporting shaft, install drive gear through ratchet on the first supporting shaft, slide bar one side be equipped with the rack, drive gear and rack toothing and link to each other, ratchet's pawl dish one side is equipped with the articulated shaft, the articulated shaft on articulated install the connecting rod, the articulated pull rod of installing in bottom of connecting rod, the pull rod activity runs through the casing and extends to the lower part of support column, telescopic lower part outer wall is equipped with the guide holder, the pull rod slides and passes the guide holder and be connected with the footboard. The high-pressure injector can realize the rapid adjustment of the height of the injector body, and has the characteristics of convenient adjustment and good firmness.

Description

High-pressure syringe convenient to height-adjusting

Technical Field

The present invention relates to a high pressure syringe, and more particularly, to a high pressure syringe which is convenient to adjust its height.

Background

The high-pressure injector is used as an auxiliary device in a radiology diagnosis and treatment system, and is gradually applied clinically along with the technical development of X-rays, a rapid film changer, an image intensifier, an artificial contrast agent and the like. The high-pressure injector has the basic function that a sufficient amount of high-concentration X-ray contrast medium is quickly and accurately injected to an examination part through percutaneous puncture entering a blood vessel or an original pore passage of a human body within a certain time, so that diagnostic imaging and treatment can be carried out on a pathological change part. In order to facilitate use, most of the existing high-pressure injectors are designed into a height-adjustable structure, namely, a support column of the high-pressure injector consists of a slide bar and a sleeve, and when the height is adjusted, a screw screwed on the sleeve is loosened, the slide bar is pulled to move, and then the screw is locked, so that the height adjustment of the high-pressure injector can be realized. However, the height of the existing high-pressure injector needs to be adjusted by frequently bending down to loosen screws, the operation is complex, the surface of the sliding rod is easily damaged by adopting a screw locking mode, the next adjustment is affected, the screw locking mode is not firm enough, and the risk of slipping exists.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of the prior art, and provides a high-pressure injector convenient for height adjustment, which can realize the rapid height adjustment of an injector body and has the characteristics of convenient adjustment and good firmness.

The technical scheme of the utility model is as follows: a high-pressure injector convenient for height adjustment comprises an injector body, a base, a support column and a plurality of universal wheels, wherein the universal wheels are uniformly arranged at the bottom of the base, the support column is arranged at the top of the base, the injector body is arranged at the top of the support column, the support column comprises a slide rod and a sleeve, the slide rod is inserted in the sleeve in a sliding manner, a shell is arranged at the upper part of the sleeve, one side of the shell is communicated with the sleeve, a first support shaft is arranged in the shell, a driving gear is arranged on the first support shaft through a ratchet mechanism, a rack is arranged at one side of the slide rod, the driving gear is meshed and connected with the rack, a hinge shaft is arranged at one side of a pawl disc of the ratchet mechanism, a connecting rod is hinged and arranged on the hinge shaft, a pull rod is hinged and arranged at the bottom of the connection shaft, and movably penetrates through the shell and extends to the lower part of the support column, the outer wall of the lower part of the sleeve is provided with a guide seat, the pull rod penetrates through the guide seat in a sliding manner and is connected with a pedal, a tension spring is arranged between the pedal and the guide seat, two ends of the tension spring are respectively connected with the pedal and the guide seat, and a limiting mechanism for limiting the reverse rotation of the driving gear is arranged in the shell; and an adjusting mechanism for adjusting the separation or the engagement of the driving gear and the rack is arranged on the periphery of the shell.

As a further improvement, the adjusting mechanism comprises a U-shaped frame and a screw rod, sliding grooves are arranged on two sides of the shell, two ends of the first supporting shaft respectively penetrate through the sliding grooves and extend to two sides of the shell, two ends of the first supporting shaft are respectively connected with one end of an opening of the U-shaped frame, one end of the screw rod penetrates through one closed end of the U-shaped frame and is connected with the shell in a rotating mode, and the screw rod is in threaded connection with the U-shaped frame.

Furthermore, stop gear include second back shaft and stop gear, the both ends of second back shaft run through the sliding tray respectively and extend to the casing both sides, just the both ends of second back shaft are connected with the middle part of U-shaped frame respectively, stop gear pass through one-way bearing and install on the second back shaft, just stop gear links to each other with the drive gear meshing.

Further, the other end of the screw rod is provided with a rotating disc.

Furthermore, the bottom of casing is equipped with the hole of stepping down, the pull rod activity run through the hole of stepping down.

Furthermore, a buffer spring is placed in the sleeve below the sliding rod.

Furthermore, the sliding rod and the sleeve are both of square structures.

Furthermore, a magnet is embedded in one side of the sleeve.

Advantageous effects

Compared with the prior art, the utility model has the following advantages:

the high-pressure injector of the utility model is characterized in that the drive gear is arranged in the shell, the rack is arranged on the sliding rod, in the actual use process, the pedal is stepped down to drive the pull rod to slide downwards, the pull rod drives the connecting rod to swing to drive the drive gear to rotate, the drive gear drives the rack to move upwards, so that the height of the injector body is adjusted, the drive gear can be locked to prevent the drive gear from reversing due to the action of the limiting mechanism, so as to prevent the sliding rod from falling down, then the force of the pedal is released, the drive gear is connected with the first supporting shaft through the ratchet mechanism, the pedal resets under the elastic acting force of the tension spring at the moment, the next cycle of stepping is continued, the height of the injector body is continuously adjusted, when the injector body descends and resets, the adjusting mechanism is released, so that the drive gear is separated from the rack, the injector body can fall under the action of gravity, and the height of the injector body can be quickly adjusted, has the characteristics of convenient adjustment and good firmness.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is an enlarged view of the structure at B in FIG. 1;

fig. 4 is an enlarged schematic view of a sectional top view of the housing according to the present invention.

Wherein: 1-an injector body, 2-a base, 3-a sliding rod, 4-a universal wheel, 5-a sleeve, 6-a shell, 7-a first supporting shaft, 8-a ratchet mechanism, 9-a driving gear, 10-a rack, 11-a hinged shaft, 12-a pull rod, 13-a guide seat, 14-a pedal, 15-a tension spring, 16-a U-shaped frame, 17-a screw rod, 18-a sliding groove, 19-a rotating disc, 20-a abdicating hole, 21-a buffer spring, 22-a second supporting shaft, 23-a limiting gear and 24-a connecting rod.

Detailed Description

The utility model will be further described with reference to specific embodiments shown in the drawings.

Referring to fig. 1-4, the high pressure syringe convenient for height adjustment of the present invention comprises a syringe body 1, a base 2, a support column and a plurality of universal wheels 4, wherein the plurality of universal wheels 4 are uniformly installed at the bottom of the base 2, the support column is installed at the top of the base 2, the syringe body 1 is installed at the top of the support column, the support column comprises a slide rod 3 and a sleeve 5, the slide rod 3 is inserted into the sleeve 5 in a sliding manner, the upper portion of the sleeve 5 is provided with a casing 6, one side of the casing 6 is communicated with the sleeve 5, the casing 6 is internally provided with a first support shaft 7, the first support shaft 7 is provided with a drive gear 9 through a ratchet gear 8, specifically, the ratchet gear is an inner engaged ratchet gear comprising a ratchet and a pawl, wherein the drive gear 9 is sleeved at the periphery of the ratchet, the pawl is installed on a pawl disc, the pawl disc is connected with the first support shaft 7 through a bearing, a rack 10 is arranged on one side of the sliding rod 3, the driving gear 9 is meshed with the rack 10, a hinge shaft 11 is arranged on one side of a pawl disc of the ratchet mechanism 8, the hinge shaft 11 is eccentrically installed on the pawl disc, a connecting rod 24 is hinged to the hinge shaft 11, a pull rod 12 is hinged to the bottom of the connecting rod 24, the pull rod 12 movably penetrates through the shell 6 and extends to the lower portion of the supporting column, a guide seat 13 is arranged on the outer wall of the lower portion of the sleeve 5, a crank sliding block is formed among the hinge shaft 11, the connecting rod 24, the pull rod 12 and the guide seat 13, the pull rod 12 penetrates through the guide seat 13 in a sliding mode and is connected with a pedal 14, a tension spring 15 is arranged between the pedal 14 and the guide seat 13, two ends of the tension spring 15 are respectively connected with the pedal 14 and the guide seat 13, and a limiting mechanism for limiting the reverse rotation of the driving gear 9 is arranged in the shell 6; an adjusting mechanism for adjusting the separation or the engagement of the driving gear 9 and the rack 10 is arranged on the periphery of the shell 6. Specifically, adjustment mechanism includes U-shaped frame 16 and screw rod 17, and wherein, 6 both sides of casing are equipped with sliding tray 18, and sliding tray 18 is run through respectively and extend to 6 both sides of casing in the both ends of first supporting shaft 7, and the both ends of first supporting shaft 7 are connected with the opening one end of U-shaped frame 16 respectively, and the one end of screw rod 17 runs through the closed one end of U-shaped frame 16 and is connected with casing 6 rotation, and screw rod 17 and U-shaped frame 16 threaded connection. Specifically, the limiting mechanism comprises a second supporting shaft 22 and a limiting gear 23, wherein two ends of the second supporting shaft 22 respectively penetrate through the sliding groove 18 and extend to two sides of the shell 6, two ends of the second supporting shaft 22 are respectively connected with the middle of the U-shaped frame 16, the limiting gear 23 is mounted on the second supporting shaft 22 through a one-way bearing, and the limiting gear 23 is meshed with the driving gear 9.

The high-pressure injector of the utility model, through setting up the drive gear 9 in the body 6, set up the rack 10 on the slide bar 3, in the course of using actually, drive the draw bar 12 to slip downward by stepping on the footboard 14, the draw bar 12 drives the tie rod 24 to swing and drive the drive gear 9 to rotate, the drive gear 9 drives the rack 10 to move upwards, thus regulate the height of the injector body 1, because the limit gear 23 of the stop gear is installed through the unidirectional bearing, its unidirectional rotation can lock the drive gear 9, prevent its reversal, and then prevent the slide bar 3 from dropping, then loosen the strength of the footboard 14, because the drive gear 9 connects with first supporting shaft 7 through the ratchet mechanism 8, the footboard 14 resets under the elastic force of the extension spring 15 at this moment, continue the next cycle trampling, realize the height of the injector body 1 of continuous regulation, when the injector body 1 drops and resets, loosening the adjusting mechanism, namely rotating the screw 17 to drive the U-shaped frame 16 to be far away from the supporting column, separating the driving gear 9 from the rack 10, and enabling the injector body 1 to fall under the action of gravity, so that the height of the injector body 1 can be quickly adjusted, and the device has the characteristics of convenience in adjustment and good firmness.

Preferably, a rotating disc 19 is provided at the other end of the screw 17 to facilitate rotation of the screw 17.

Preferably, the bottom of the housing 6 is provided with an abdicating hole 20, and the pull rod 12 movably penetrates through the abdicating hole 20 to prevent the interference between the pull rod 12 and the housing 6.

Preferably, a buffer spring 21 is placed in the sleeve 5 below the slide bar 3, and plays a role of buffering the syringe body 1 during the resetting of the slide bar 3.

Preferably, the sliding rod 3 and the sleeve 5 are both square structures, so that the injector body 1 is prevented from rotating in the adjusting process.

Preferably, a magnet is embedded in one side of the sleeve 5, so that the friction force between the slide bar 3 and the sleeve 5 is increased, the descending speed of the slide bar 3 is slowed down, and the buffer effect on the syringe body 1 is further enhanced.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various changes and modifications without departing from the structure of the utility model, which will not affect the effect of the utility model and the practicability of the patent.

Claims

1. A high-pressure injector convenient for height adjustment comprises an injector body (1), a base (2), a supporting column and a plurality of universal wheels (4), wherein the universal wheels (4) are uniformly arranged at the bottom of the base (2), the supporting column is arranged at the top of the base (2), the injector body (1) is arranged at the top of the supporting column, the high-pressure injector is characterized in that the supporting column comprises a sliding rod (3) and a sleeve (5), the sliding rod (3) is inserted into the sleeve (5) in a sliding manner, a shell (6) is arranged at the upper part of the sleeve (5), one side of the shell (6) is communicated with the sleeve (5), a first supporting shaft (7) is arranged in the shell (6), a driving gear (9) is arranged on the first supporting shaft (7) through a ratchet mechanism (8), a rack (10) is arranged at one side of the sliding rod (3), the driving gear (9) is meshed with the rack (10) and connected, a hinge shaft (11) is arranged on one side of a pawl disc of the ratchet mechanism (8), a connecting rod (24) is hinged to the hinge shaft (11), a pull rod (12) is hinged to the bottom of the connecting rod (24), the pull rod (12) movably penetrates through the shell (6) and extends to the lower portion of the supporting column, a guide seat (13) is arranged on the outer wall of the lower portion of the sleeve (5), the pull rod (12) penetrates through the guide seat (13) in a sliding mode and is connected with a pedal (14), a tension spring (15) is arranged between the pedal (14) and the guide seat (13), two ends of the tension spring (15) are connected with the pedal (14) and the guide seat (13) respectively, and a limiting mechanism for limiting the driving gear (9) to rotate reversely is arranged in the shell (6); and an adjusting mechanism for adjusting the separation or meshing of the driving gear (9) and the rack (10) is arranged on the periphery of the shell (6).

2. The high pressure syringe convenient for height adjustment according to claim 1, wherein the adjusting mechanism comprises a U-shaped frame (16) and a screw (17), sliding grooves (18) are formed on two sides of the housing (6), two ends of the first supporting shaft (7) respectively penetrate through the sliding grooves (18) and extend to two sides of the housing (6), two ends of the first supporting shaft (7) are respectively connected with one open end of the U-shaped frame (16), one end of the screw (17) penetrates through the closed end of the U-shaped frame (16) and is rotatably connected with the housing (6), and the screw (17) is in threaded connection with the U-shaped frame (16).

3. The high-pressure injector convenient for height adjustment according to claim 2, wherein the limiting mechanism comprises a second supporting shaft (22) and a limiting gear (23), two ends of the second supporting shaft (22) respectively penetrate through the sliding groove (18) and extend to two sides of the housing (6), two ends of the second supporting shaft (22) are respectively connected with the middle part of the U-shaped frame (16), the limiting gear (23) is mounted on the second supporting shaft (22) through a one-way bearing, and the limiting gear (23) is meshed with the driving gear (9).

4. High pressure syringe convenient for height adjustment according to claim 2, characterized in that the other end of the screw (17) is provided with a rotating disc (19).

5. The high pressure syringe convenient for height adjustment according to claim 1, wherein the bottom of the housing (6) is provided with an abdicating hole (20), and the pull rod (12) is movably passed through the abdicating hole (20).

6. A high-pressure syringe convenient for height adjustment according to any one of claims 1 to 5, characterized in that a buffer spring (21) is placed in the sleeve (5) below the slide bar (3).

7. The high pressure syringe convenient for height adjustment according to claim 6, wherein the sliding rod (3) and the sleeve (5) are both square.

8. The high pressure syringe convenient for height adjustment according to claim 7, wherein a magnet is embedded in one side of the sleeve (5).