Instrument rubber insert with good sealing performance

Abstract

The instrument rubber insert comprises a rubber block and an annular cavity, a loosening and tightening device is arranged, a motor is used for driving the rear portion of a first gear, a second gear is made to rotate, a vertical round rod is driven to slide in a sliding groove, and a connecting plate and a movable body are made to expand outwards and can be matched with a connecting opening of an instrument. When the rubber block is used to a certain degree and needs to be replaced, the motor is driven again, so that the first gear drives the second gear to rotate, the movable body expands outwards a little, the elastic device is disengaged from the connector of the instrument, and the aged rubber block can be conveniently replaced by the personnel; through the arrangement of the movable body, when a connector of an instrument is connected with the rubber insert block by a person, due to the fact that the movable body is divided into two parts, the locking block bears downward pressure, the spring is squeezed downwards, and the rubber insert block can be better connected with the instrument and is not prone to falling off.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and specifically is a medical rubber insert with good sealing performance. Background Technology

[0002] Existing rubber inserts are often connected to rubber pads by strong glue. Over time, the strong glue is prone to aging, which makes the rubber pad easy to fall off, thus affecting the sealing of the rubber insert. Moreover, when the rubber pad is worn, the entire rubber insert can only be replaced, which invisibly increases the labor cost.

[0003] When optimizing existing rubber inserts, most of them are reflected in improving the sealing effect of the device. For example, the Chinese utility model patent with application number CN202120668103.0 discloses a "medical device rubber insert with good sealing performance". This utility model patent sets a connector. When in use, first align the connecting rod of the rubber pad with the pin hole of the first connector, then press the rubber pad downward to install the rubber pad on the first connector, and then align the four second fixing bolts with the position of the mounting hole in turn, and tighten the four second fixing bolts with a screwdriver to install them, so that the second fixing bolts pass through the threaded hole, and then fix the rubber pad. Compared with the original method of bonding with strong glue, this method is not easy to fall off, thereby ensuring the sealing between the first connector and the second connector.

[0004] Although the above method has certain advantages in terms of improvement, it still has certain disadvantages: if there is no mechanism to fix the instrument, when the rubber insert is installed in the instrument, the specifications of the bearings of the instrument and the rubber insert are different. When the rubber insert is pressed on the instrument, it is easy for the instrument bearing to not match the installation inner diameter of the rubber insert during installation, which will cause the rubber insert to fall off the instrument easily. Contents of utility model

[0005] (I) Technical problems solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides a rubber insert for instruments with good sealing performance, which solves the above-mentioned problems.

[0007] (II) Technical Solution

[0008] To achieve the above object, the utility model is realized by the following technical solutions: An instrument rubber insert with good sealing performance, including a rubber block, a ring cavity and a tightening device. The rubber block and the ring cavity are of an integrated structure and the ring cavity is located in the middle of the rubber block. The tightening device is installed inside the ring cavity. The tightening device includes a first gear, a second gear, a chute and a stretching and contracting device. The chute and the second gear are of an integrated structure. The second gear is meshed and connected to the right side of the first gear and is movably matched. One side end bottom of the stretching and contracting device is movably matched with the second gear through the chute.

[0009] Preferably, the stretching and contracting device includes a connecting plate, a vertical round rod and a movable body. One end of the connecting plate is connected through the vertical round rod, and the middle and lower end position of the movable body is connected to the other end of the connecting plate.

[0010] Preferably, the movable body includes a locking block, a fixing plate and a spring. The spring is installed inside the fixing plate. The upper end of the spring is fixedly connected and movably matched with the lower end of the locking block. The lower end of the locking block is pressed into the fixing plate.

[0011] Preferably, the first gear is installed at the bottom of the ring cavity. A motor is installed at the rear end of the first gear. There are six chutes, which are evenly distributed annularly with respect to the second gear.

[0012] Preferably, the lower end of the vertical round rod is slidably matched inside the chute. The movable body is arc-shaped and there are six groups, which are evenly distributed annularly.

[0013] Preferably, the inside of the fixing plate is cavity-shaped. The front end of the fixing plate is fixedly connected to one end of the connecting plate. The locking block is made of silica gel material, having certain toughness and anti-slip property. There are two springs, and the upper part is connected to the lower end of the locking block.

[0014] Preferably, the second gear is made of cast steel material, having good strength and wear resistance.

[0015] Preferably, the spring is made of hard material, having the characteristics of high hardness and high strength.

[0016] (III) Beneficial effects

[0017] The utility model provides a rubber insert for a device with good sealing performance. It has the following beneficial effects: By setting a tightening device, driving the motor at the rear of the first gear, the second gear rotates, driving the vertical round rod to slide in the chute, causing the connecting plate and the movable body to expand outward, which can fit with the connecting port of the device. When the rubber block is used to a certain extent and needs to be replaced, the motor is driven again to make the first gear drive the second gear to rotate, so that the movable body expands outward a little more, causing the tightening device to fall off from the connecting port of the device, facilitating the replacement of the aging rubber block by the personnel.

[0018] The utility model provides a rubber insert for a device with good sealing performance. It has the following beneficial effects: By setting a movable body, when the connecting port of the device is connected to the rubber insert block, since the movable body is divided into two parts, the locking block is subjected to a downward pressure, squeezing the spring downward, enabling the rubber insert block to better connect with the device and not easily fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the rubber insert of the utility model;

[0020] Figure 2 is a top-plan view structural schematic diagram of the rubber insert of the utility model;

[0021] Figure 3 is a top-plan view structural schematic diagram of the tightening device of the utility model;

[0022] Figure 4 is a top-plan view structural schematic diagram of the expansion and contraction device of the utility model;

[0023] Figure 5 is a front-plan view structural schematic diagram of the movable body of the utility model.

[0024] In the figure: rubber block - 1, annular cavity - 2, tightening device - 3, first gear - 31, second gear - 32, chute - 33, expansion and contraction device - 34, connecting plate - 341, vertical round rod - 342, movable body - 343, locking block - 3431, fixing plate - 3432, spring - 3433. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figure 1-2, the present utility model provides a technical solution for an instrument rubber insert with good sealing performance: an instrument rubber insert with good sealing performance, including a rubber block 1, a ring cavity 2 and a tightening device 3. The rubber block 1 and the ring cavity 2 are of an integrated structure and the ring cavity 2 is located in the middle of the rubber block 1. The tightening device 3 is installed inside the ring cavity 2.

[0027] Please refer to Figure 3-4 , the present utility model provides a technical solution for an instrument rubber insert with good sealing performance: an instrument rubber insert with good sealing performance, the tightening device 3 includes a first gear 31, a second gear 32, a chute 33 and a stretching and contracting device 34. The chute 33 and the second gear 32 are of an integrated structure. The second gear 32 is meshed and connected to the right side of the first gear 31 and is movably matched. One side end bottom of the stretching and contracting device 34 is movably matched with the second gear 32 through the chute 33; the stretching and contracting device 34 includes a connecting plate 341, a vertical round rod 342 and a movable body 343. One end of the connecting plate 341 is penetrated and connected with the vertical round rod 342, and the middle lower end position of the movable body 343 is connected to the other end of the connecting plate 341; the first gear 31 is installed at the bottom of the ring cavity 2, and a motor is installed at the rear end of the first gear 31. There are six chutes 33, and they are evenly distributed annularly around the second gear 32; the lower end of the vertical round rod 342 is slidably matched inside the chute 33. The movable body 343 is arc-shaped and there are six groups, which are evenly distributed annularly; the second gear 32 is made of cast steel material and has good strength and wear resistance.

[0028] Please refer to Figure 5 , the present utility model provides a technical solution for an instrument rubber insert with good sealing performance: an instrument rubber insert with good sealing performance, the movable body 343 includes a locking block 3431, a fixing plate 3432 and a spring 3433. The spring 3433 is installed inside the fixing plate 3432. The upper end of the spring 3433 is fixedly connected and movably matched with the lower end of the locking block 3431, and the lower end of the locking block 3431 is pressed into the fixing plate 3432; the inside of the fixing plate 3432 is cavity-shaped, and the front end of the fixing plate 3432 is fixedly connected to one end of the connecting plate 341. The locking block 3431 is made of silica gel material and has certain toughness and anti-slip properties. There are two groups of springs 3433, and the upper part is connected to the lower end of the locking block 3431; the spring 3433 is made of a hard material and has the characteristics of high hardness and high strength.

[0029] The working principle is as follows: When a rubber insert needs to be used, the operator connects the movable opening of the tightening device 3 to the instrument. When the connection opening of the instrument is relatively large, the motor at the rear of the first gear 31 is driven to rotate the second gear 32, which drives the vertical round rod 342 to slide in the chute 33, causing the connecting plate 341 and the movable body 343 to expand outward and fit with the connection opening of the instrument. When the operator connects the connection opening of the instrument to the rubber insert block, since the movable body 343 is provided in two parts, the locking block 3431 is subjected to a downward pressure, squeezing the spring 3433 downward, enabling the rubber insert block to be better connected to the instrument. When the rubber block 1 has been used to a certain extent and needs to be replaced, the motor is driven again to rotate the first gear 31 to drive the second gear 32, causing the movable body 343 to expand outward a little more, so that the tightening device 3 is disengaged from the connection opening of the instrument, facilitating the operator to replace the aging rubber block 1.

[0030] The control mode of the present utility model is controlled by manually starting and closing the switch. The wiring diagram of the power element and the power supply are common knowledge in the art. And the present utility model is mainly used to protect the mechanical device, so the control mode and wiring arrangement of the present utility model will not be further explained in detail.

[0031] The control mode of the present utility model is automatically controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art. The power supply is also common knowledge in the art. And the present utility model is mainly used to protect the mechanical device, so the control mode and circuit connection of the present utility model will not be further explained in detail.

[0032] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A rubber insert for an instrument with good sealing performance, comprising a rubber block (1) and an annular cavity (2), wherein the rubber block (1) and the annular cavity (2) are an integrated structure and the annular cavity (2) is located in the middle of the rubber block (1); Features: The invention also comprises a tensioning device (3), wherein the tensioning device (3) is installed inside the annular cavity (2), and the tensioning device (3) comprises a first gear (31), a second gear (32), a slide groove (33) and a support and contraction device (34). The slide groove (33) and the second gear (32) are an integrated structure. The second gear (32) is meshedly connected to the right side of the first gear (31) and is movably matched. The bottom of one side end of the support and contraction device (34) is movably matched with the second gear (32) through the slide groove (33).

2. The rubber insert for an apparatus with good sealing performance according to claim 1, characterized in that: The expansion and contraction device (34) comprises a connecting plate (341), a vertical round rod (342), and a movable body (343); one end of the connecting plate (341) is connected to the vertical round rod (342), and the middle and lower end of the movable body (343) is connected to the other end of the connecting plate (341).

3. The rubber insert for an apparatus with good sealing performance according to claim 2, characterized in that: The movable body (343) comprises a locking block (3431), a fixing plate (3432), and a spring (3433). The spring (3433) is installed inside the fixing plate (3432). The upper end of the spring (3433) is fixedly connected to the lower end of the locking block (3431) and movably cooperates with the lower end of the locking block (3431). The lower end of the locking block (3431) is embedded in the fixing plate (3432).

4. The rubber insert for an apparatus with good sealing performance according to claim 1, characterized in that: The first gear (31) is installed at the bottom of the annular cavity (2), and a motor is installed at the rear end of the first gear (31).

5. The rubber insert for an apparatus with good sealing performance according to claim 2, characterized in that: The lower end of the vertical round rod (342) is slidably fitted into the interior of the sliding groove (33).

6. The rubber insert for an apparatus with good sealing performance according to claim 3, characterized in that: The interior of the fixing plate (3432) is in a cavity shape, the front end of the fixing plate (3432) is embedded and connected with one end of the connecting plate (341), and the locking block (3431) is made of silicone material, which has certain toughness and anti-slip properties.

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