CN111361808B - Hand-held heat seal gun and heat seal device - Google Patents

Abstract

The present disclosure relates to a hand-held heat sealing gun and heat sealing device, this hand-held heat sealing gun includes: a housing having a grip portion and a tip portion; the heat seal mechanism comprises a support, an electric push rod, a fixed pressing block and a movable pressing block, wherein the fixed pressing block and the movable pressing block are arranged opposite to each other; the high-frequency generator is fixedly arranged in the shell and is respectively and electrically connected with the fixed pressing block and the movable pressing block so as to heat the movable pressing block and the fixed pressing block; and the rechargeable battery is fixedly arranged in the holding part and is used for supplying power to the high-frequency generator and the electric push rod. Through above-mentioned technical scheme, this handheld heat seal rifle easy operation that openly provides just has stable heat seal effect.

Description

Hand-held heat seal gun and heat seal device

Technical Field

The disclosure relates to the technical field of medical equipment, in particular to a handheld heat sealing gun and a heat sealing device.

Background

Blood stations and hospitals and other units need to heat seal the blood bag conduit after blood sampling, for example, for cross matching, blood type review and blood specimen preservation.

The heat sealing equipment used at present comprises a heating device and a heat sealing clamp which are separately arranged and connected through a lead, when the heat sealing equipment is used, a user firstly starts the heating device to heat a clamp body in the heat sealing clamp, and then manually clamps a blood bag conduit to realize heat sealing.

However, during this operation, the clamping force applied by the operator is often different, so that it is difficult to ensure that each blood bag conduit can be sufficiently clamped and heat-sealed, resulting in unstable heat-sealing effect.

Disclosure of Invention

An object of the present disclosure is to provide a hand-held heat sealing gun which is simple to operate and has a stable heat sealing effect.

Another object of the present disclosure is to provide a heat sealing device, which can realize wireless charging of the above-mentioned handheld heat sealing gun for the convenience of operators.

In order to achieve the above object, the present disclosure provides a hand-held heat sealing gun, comprising: a housing having a grip portion and a tip portion; the heat sealing mechanism comprises a support, an electric push rod, a fixed pressing block and a movable pressing block, wherein the fixed pressing block and the movable pressing block are arranged opposite to each other, the support is installed on the gun head, the electric push rod is located in the shell and fixed on the support, the fixed pressing block is fixed on the support and exposed out of the gun head, the movable pressing block is movably arranged on the support, the electric push rod drives the movable pressing block to move so as to switch between a release position and a clamping position, in the release position, a first distance between the movable pressing block and the fixed pressing block is larger than the outer diameter of the blood bag catheter to be heat sealed, and in the clamping position, a second distance between the movable pressing block and the fixed pressing block is smaller than twice the wall thickness of the blood bag catheter to be heat sealed; a high frequency generator fixedly disposed in the housing and electrically connected to the fixed pressing block and the movable pressing block, respectively, to heat the movable pressing block and the fixed pressing block; and the rechargeable battery is fixedly arranged in the holding part and used for supplying power to the high-frequency generator and the electric push rod.

Optionally, the fixed pressing block has a butt surface facing the movable pressing block in the moving direction of the movable pressing block, the butt surface is provided with a raised strip rib, the strip rib is perpendicular to the trend of the clamped part of the blood bag conduit to be heat-sealed, and the raised height of the strip rib is smaller than the second distance, so that the heat-sealed blood bag conduit forms a cutting line.

Optionally, the movable pressing block is provided with a chamfer surface and a pressing surface facing the fixed pressing block, and the chamfer surfaces are arranged on two sides of the pressing surface in the direction of the clamped part of the blood bag conduit to be heat-sealed.

Optionally, the support defines a central axis, and a locking structure is disposed between the heat sealing mechanism and the housing, and the locking structure has a release state in which the heat sealing mechanism can rotate around the central axis and a locking state in which the heat sealing mechanism can maintain a position relative to the housing.

Optionally, the angle of rotation of the heat sealing mechanism around the central axis can be infinitely adjusted.

Optionally, the sealing mechanism is rotatable about the central axis to a plurality of angular positions.

Optionally, the support includes a mounting ring, a fixing sleeve and a compact holder, the gun head is formed with a mounting hole and a mounting flange is formed in the mounting hole, the mounting ring has an annular body and a stopper flange extending radially outward at one end of the annular body, the fixing sleeve has a sleeve body and a flange plate at one end of the sleeve body, the compact holder has a connection plate and a holder main body extending outward from an outside of the connection plate,

the annular body penetrates through the mounting hole, the stop flange abuts against the inner surface of the mounting flange, the sleeve body is inserted into the annular body and extends into the shell, the electric push rod is fixed in the sleeve body, the inner side surface of the flange abuts against and is fixed on the end surface of the annular body opposite to the stop flange, the inner side of the connecting disc is installed on the outer side surface of the flange, and the connecting disc and the sleeve body form a channel for the movable pressing block to move together.

Optionally, the bracket main body is configured in an L shape and includes an extension part and a receiving part which are arranged at an angle to each other, the extension part is fixedly connected to the connecting disc, the fixed pressing block is partially received and fixed in the receiving part, and the extension part has a bearing surface between the movable pressing block and the fixed pressing block.

Optionally, the detent structure is disposed between an inner side of the flange and an outer side of the mounting flange and includes a ball plunger and a groove set including a plurality of grooves spaced about the central axis, the ball of the ball plunger being receivable in the grooves to limit rotation of the flange relative to the housing about the central axis,

the ball plunger is arranged on one of the inner side surface of the flange plate and the outer side surface of the mounting flange, and the groove group is arranged on the other of the inner side surface of the flange plate and the outer side surface of the mounting flange.

Optionally, the fixed sleeve is formed with an operating ring extending outwards along the central axis on the periphery of the flange, and the outer surface of the operating ring is provided with an anti-slip structure.

Optionally, the housing comprises a cooperating housing cover and a housing, the housing cover being detachably connected to the housing, the housing being configured with the barrel-shaped gun head.

Optionally, the housing is provided with a charging interface, the gun head is located at one end of the holding portion, and the charging interface is located at the other end of the holding portion.

Optionally, the handheld heat sealing gun comprises a control module, the control module is fixed in the housing, the high-frequency generator and the electric push rod are both electrically connected with the control module, and the control module can control the high-frequency generator to be opened and closed and can control the electric push rod to drive the movable pressing block to move;

wherein the first and second spacing and the heating time of the high frequency generator are set by the control module.

Optionally, the handheld heat sealing gun further comprises a button mounted on the housing, the button has a start position and an operating position, the control module is powered on in the start position, and the control module controls the electric push rod to drive the movable pressing block to move towards the clamping position in the operating position.

Optionally, the housing is provided with an adjustment panel provided with a display screen for displaying the current first and second pitches and the heating time of the high frequency generator and a plurality of keys for manually inputting/adjusting the first and second pitches and the heating time of the high frequency generator.

According to a second aspect of the present disclosure, a heat sealing apparatus is provided, which includes a charging seat and the above-mentioned handheld heat sealing gun, wherein the handheld heat sealing gun is detachably placed on the charging seat to charge the rechargeable battery.

Optionally, the housing is provided with a charging interface connected with a rechargeable battery, the charging seat is provided with a charging plug, and the charging plug is matched with the charging interface in a plugging manner so as to charge the rechargeable battery.

Through above-mentioned technical scheme, in the hand-held type heat seal rifle that this disclosure provided, through all setting up heat seal mechanism, high frequency generator and rechargeable battery in the shell of hand-held type heat seal rifle to make this hand-held type heat seal rifle compact structure and conveniently carry. Wherein, rechargeable battery is fixed to be set up in the shell, can be for high frequency generator and electric putter power supply, can make whole hand-held type heat seal rifle break away from the constraint of the electric wire that charges when using like this, and the operator only needs this heat seal rifle of handheld can accomplish the heat seal of blood bag pipe, and such setting up mode can be convenient for the operator and hand-carry, is favorable to improving heat seal efficiency. Secondly, the high-frequency generator is used for heating the movable pressing block and the fixed pressing block in the handheld heat sealing gun, so that the movable pressing block and the fixed pressing block can carry out heat sealing on the blood bag conduit when the blood bag conduit is clamped, the output power of the high-frequency generator is strong, the heat sealing is rapid, and therefore the movable pressing block and the fixed pressing block which are electrically connected with the high-frequency generator are rapidly heated and carry out heat sealing on the blood bag conduit, and the heat sealing effect of the blood bag conduit is guaranteed. In addition, this disclosure provides a hand-held type heat seal rifle adopts the interior movable briquetting of electric putter drive heat seal mechanism to remove, compares in the manual movable briquetting that promotes among the prior art, and the clamping-force that adopts the mode of electronic movable briquetting that promotes can guarantee to apply the blood bag pipe is stable to make every blood bag pipe can both be by abundant centre gripping and heat seal, and then make the heat seal effect of blood bag pipe more reliable and more stable.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a schematic perspective view of a hand-held heat sealing gun according to an embodiment of a first aspect of the disclosure;

FIG. 2 is an exploded view of a hand-held heat sealing gun provided in accordance with an embodiment of a first aspect of the present disclosure;

FIG. 3 is a perspective view of a housing cover of a handheld heat sealing gun according to an embodiment of a first aspect of the disclosure;

FIG. 4 is a perspective view of another angle of a housing cover in a hand-held sealing gun according to an embodiment of a first aspect of the present disclosure, showing a positioning mounting post;

FIG. 5 is a perspective view of a housing of a hand-held heat sealing gun according to an embodiment of a first aspect of the disclosure;

FIG. 6 is a perspective view of another angle of the housing of the handheld heat sealing gun according to an embodiment of the first aspect of the present disclosure;

FIG. 7 is a side view of a hand-held heat sealing gun provided in accordance with an embodiment of a first aspect of the present disclosure;

FIG. 8 is a cross-sectional view taken along line A-A of FIG. 7;

FIG. 9 is a side view of a sealing mechanism in a hand-held sealing gun according to an embodiment of a first aspect of the present disclosure;

FIG. 10 is a cross-sectional view taken along line B-B of FIG. 9;

FIG. 11 is an exploded view of a sealing mechanism in a hand-held sealing gun according to an embodiment of a first aspect of the present disclosure, wherein the fixed and movable compacts are unexploded;

fig. 12 is a perspective view of a hand-held heat sealing gun according to a first embodiment of the disclosure, in which an electric push rod and a movable pressing block are connected;

FIG. 13 is a perspective view of a mounting ring in a hand-held heat sealing gun according to an embodiment of a first aspect of the present disclosure;

FIG. 14 is a perspective view of a pouch in a hand-held heat sealing gun according to an embodiment of a first aspect of the present disclosure;

FIG. 15 is a perspective view of a pressure bracket in a hand-held heat sealing gun according to an embodiment of a first aspect of the present disclosure;

FIG. 16 is a perspective view of a holder body in a hand-held heat sealing gun according to an embodiment of a first aspect of the present disclosure;

fig. 17 is a perspective view of a hand-held heat sealing gun and a charging stand in a heat sealing apparatus according to a second embodiment of the present disclosure;

fig. 18 is a perspective view of a charging stand in a thermal device according to an embodiment of a second aspect of the present disclosure.

Description of the reference numerals

100-hand-held heat sealing gun; 1-a housing; 11-a shell cover; 111-a first snap; 112-positioning the mounting post; 113-interface slot; 114-an elongated slot; 115-panel mount; 1151-avoiding an opening; 1152-a second clasp; 12-a housing; 121-an anti-skid unit; 122-mounting holes; 123-a mounting flange; 1231-groove; 124-button mounting groove; 125-screw hole; 126-a first card slot; 127-a second card slot;

2-a heat seal mechanism; 21-an electric push rod; 211-a putter body; 22-fixing a pressing block; 221-a butting face; 222-bar ribs; 23-movable briquetting; 231-a press fit surface; 232-chamfering surface; 24-a mounting ring; 241-an annular body; 2411-connecting hole; 2412-a first axle hole; 242-a stop flange; 25-fixing the sleeve; 251-a sleeve body; 2511-second shaft hole; 252-flange plate; 2521-a first through hole; 2522-a connecting column; 2523-mounting a limit groove; 253-operating ring; 2531-anti-skid structure; 2524-ball plunger; 26-a briquetting support; 261-connecting disc; 2611-a second via; 2612-third shaft hole; 262-a stent body; 2621-an extension; 2622-a containment; 2623-bearing surface;

3-a high frequency generator; 31-a wire;

4-a rechargeable battery;

5-a control module;

6-push button;

7-adjusting the panel; 71-a display screen; 72-key press;

8-a charging interface;

9-display lamp;

200-a charging seat; 201-a plug groove; 202-charging plug.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, the use of directional terms such as "inner and outer" means inner and outer with respect to the profile of the component itself, unless otherwise specified; the use of the terms first, second, third, etc. are intended to distinguish one element from another, and are not necessarily intended to be sequential or important. Furthermore, in the following description, when referring to the figures, the same reference numbers in different figures denote the same or similar elements, unless otherwise explained. The foregoing definitions are provided to illustrate and describe the present disclosure only and should not be construed to limit the present disclosure.

According to an embodiment provided by the present disclosure, there is provided a hand-held heat sealing gun, referring to fig. 1 to 16, the hand-held heat sealing gun 100 including: a housing 1 having a grip portion and a tip portion; the heat sealing mechanism 2 comprises a support, a driving device, and a fixed pressing block 22 and a movable pressing block 23 which are arranged opposite to each other, wherein the support is mounted on the gun head, the driving device is positioned inside the shell 1 and fixed on the support, the fixed pressing block 22 is fixed on the support and exposed to the gun head, the movable pressing block 23 is movably arranged on the support, the driving device drives the movable pressing block 23 to move so as to switch between a release position and a clamping position, in the release position, a first distance between the movable pressing block 23 and the fixed pressing block 22 is larger than the outer diameter of the blood bag conduit to be heat sealed, and in the clamping position, a second distance between the movable pressing block 23 and the fixed pressing block 22 is smaller than twice the wall thickness of the blood bag conduit to be heat sealed; a high frequency generator 3 fixedly disposed in the housing 1 and electrically connected to the fixed pressing block 22 and the movable pressing block 23, respectively, to heat the movable pressing block 23 and the fixed pressing block 22; and a rechargeable battery 4 fixedly disposed in the grip portion and configured to supply power to the high frequency generator 3 and the driving device.

According to the technical scheme, in the handheld heat sealing gun provided by the disclosure, the heat sealing mechanism 2, the high frequency generator 3 and the rechargeable battery 4 are all arranged in the shell 1 of the handheld heat sealing gun 100, so that the handheld heat sealing gun 100 is compact in structure and convenient to carry. Wherein, rechargeable battery 4 is fixed to be set up in shell 1 to can supply power for high frequency generator 3 and drive arrangement, can make whole hand-held type heat seal rifle 100 break away from the constraint of the electric wire that charges when using like this, the operator only needs this heat seal rifle of handheld can accomplish the heat seal of blood bag pipe, and such setting up mode can be convenient for the operator and hand-carry, is favorable to improving heat seal efficiency. Secondly, in this hand-held type heat-seal rifle 100 high-frequency wave generator 3 is used for heating movable pressing block 23 and fixed pressing block 22 to make movable pressing block 23 and fixed pressing block 22 carry out the heat seal to the blood bag pipe when centre gripping blood bag pipe, and high-frequency wave generator 3 output electric power is powerful, and the butt fusion is fast, therefore movable pressing block 23 and fixed pressing block 22 that are connected with high-frequency wave generator 3 electricity are heated rapidly and carry out the heat seal to the blood bag pipe, thereby make the heat seal effect of having guaranteed the blood bag pipe. In addition, this disclosure provides a hand-held type heat-seal rifle 100 adopts the movable briquetting 23 removal in drive arrangement drive heat-seal mechanism 2, compares in the manual promotion movable briquetting among the prior art, adopts the mode of electronic promotion movable briquetting to guarantee to apply the clamping-force of blood bag pipe comparatively stable to make every blood bag pipe can both be by abundant centre gripping and heat-seal, and then make the heat-seal effect of blood bag pipe more reliable and more stable.

In the specific embodiment provided by the present disclosure, the above-mentioned driving device may be configured in any suitable manner, for example, may be configured as a pneumatic push rod, an electric push rod 21, and the like, and may also be configured as a motor having a rotary output shaft, in which case, a motion conversion structure needs to be arranged between the rotary output shaft and the movable pressing block to convert the rotary motion of the output shaft into a linear motion of the movable pressing block 23, where the motion conversion structure may be a common arrangement in the art, for example, may be configured as a screw transmission structure, a wedge structure gear and rack transmission structure, and the like, for which, the present disclosure is not particularly limited, and may be adaptively selected according to actual requirements.

In the specific embodiment provided by the present disclosure, referring to fig. 10 and 16, the fixed pressing block 22 may have an abutting surface 221 facing the movable pressing block 23 in the moving direction of the movable pressing block 23, the abutting surface 221 may be provided with a raised strip-shaped rib 222, the strip-shaped rib 222 may be disposed perpendicular to the direction of the clamped portion of the blood bag conduit to be heat-sealed, and the raised height of the strip-shaped rib 222 is smaller than the second interval, so that the heat-sealed blood bag conduit forms a cutting line. The abutting surface 221 of the fixed pressing block 22 and the movable pressing block 23 are used for placing the blood bag conduit to be heat-sealed. When the movable pressing block 23 moves to the clamping position, the second distance between the abutting surface 221 and the movable pressing block 23 is smaller than twice the wall thickness of the blood bag conduit to be heat-sealed, namely, the blood bag conduit to be heat-sealed is fully clamped between the abutting surface 221 and the movable pressing block 23, the abutting surface 221 is provided with a raised strip rib 222, when the blood bag conduit is fully clamped and heat-sealed, the strip rib 222 can cut the blood bag conduit right above the blood bag conduit, because the cutting requirements on the blood bag conduit are different in different applications of the blood bag, the raised height of the strip rib 222 is smaller than the second distance, namely, the cutting of the strip rib 222 on the blood bag conduit can enable the blood bag conduit to form a cutting line, so that an operator can cut the blood bag conduit according to different applications.

In the embodiment provided by the present disclosure, referring to fig. 12, the movable pressing block 23 may have a chamfered surface 232 and a pressing surface 231 facing the fixed pressing block 22, and the chamfered surface 232 is provided on both sides of the pressing surface 231 in the direction of the clamped portion of the blood bag conduit to be heat-sealed. By providing the chamfered surfaces 232 on both sides of the press-fit surface 231, on the one hand, the movable pressing piece 23 can be better guided to move along its own moving direction, so as to avoid interference of the movable pressing piece 23 with other components in the gun head. On the other hand, in the clamping process of the blood bag conduit, the chamfered surfaces 232 on the two sides of the pressing surface 231 can effectively prevent the two sides of the heat-sealing area from being excessively tilted to cause excessive heat melting on the edge of the abutting surface 221 of the blood bag conduit, so that the thickness of the conduit at the position is reduced.

In the specific embodiment provided by the present disclosure, the support defines a central axis, and a locking structure may be disposed between the heat-sealing mechanism 2 and the housing 1, the locking structure having a released state in which the heat-sealing mechanism 2 can rotate around the central axis and a locked state in which the heat-sealing mechanism 2 can maintain a position relative to the housing 1. Namely, the heat sealing mechanism 2 can rotate around the central axis relative to the shell 1 to meet different heat sealing position requirements, wherein the heat sealing mechanism 2 realizes the rotation of the heat sealing mechanism 2 through the locking structure, when the locking structure is in a locking state, at the moment, the position of the heat sealing mechanism 2 relative to the shell 1 does not change, and when the locking structure is in a release position, the heat sealing mechanism 2 rotates around the central axis relative to the shell 1, namely, the positions of the fixed pressing block 22 and the movable pressing block 23 which are arranged in the heat sealing mechanism 2 relative to the shell 1 change, the angle of the heat sealing mechanism 2 is adjustable, and therefore the heat sealing mechanism can be used for meeting the heat sealing of blood bag catheters at different angles.

Wherein the locking structure may be configured in any suitable manner. Alternatively, the locking structure may be configured as an endless slide rail provided to the housing 1, a ball fixed to the heat-sealing mechanism 2, and a fastener fixedly connecting the housing 1 and the heat-sealing mechanism 2, wherein the central axis of the endless slide rail coincides with the central axis, and the ball is connected in the slide rail, the heat-sealing mechanism 2 is connected to the housing 1, and when the fastener connects the housing 1 and the heat-sealing mechanism 2, the locking structure is in the locking position, and the position of the heat-sealing mechanism 2 relative to the housing 1 does not change. When the fastener is not connected with the shell 1 and the heat sealing mechanism 2, the locking structure is in a releasing device, and the rotating angle of the heat sealing mechanism 2 around the central axis can be adjusted in a stepless mode, namely, the heat sealing mechanism 2 can rotate around the central axis in the range that the balls roll along the annular sliding rail.

Alternatively, as shown in fig. 5, 8, and 11, the locking structure may be configured to include a ball plunger 2524 and a groove set, described later, in which the groove set includes a plurality of grooves 1231 arranged at intervals around the central axis, a ball of the ball plunger 2524 can be received in the groove 1231 to restrict rotation of the heat sealing mechanism 2 relative to the housing 1 around the central axis, in which the ball plunger 2524 can be provided on one of the housing 1 and the heat sealing mechanism 2, and the groove set can be provided on the other of the housing 1 and the heat sealing mechanism 2, at which time the heat sealing mechanism 2 can be rotated around the central axis to a plurality of angular positions, that is, angles at which the heat sealing mechanism 2 can be rotated around the central axis to positions of the grooves 1231 received by the ball plunger 2524.

The locking structure may be configured in other ways. The disclosure is not limited in this regard. Wherein the locking structure is configured to include a ball plunger 2524 and a set of grooves, described below. The disclosure will now be described by way of example with reference to the accompanying drawings.

In the specific embodiments provided by the present disclosure, the support may be configured in any suitable manner. Alternatively, referring to fig. 8 to 16, the holder may include a mounting ring 24, a fixing sleeve 25, and a pressure block holder 26, the tip portion of the torch may be formed with a mounting hole 122 and a mounting flange 123 formed in the mounting hole 122, the mounting ring 24 has an annular body 241 and a stopper flange 242 extending radially outward at one end of the annular body 241, the fixing sleeve 25 has a sleeve body 251 and a flange 252 at one end of the sleeve body 251, the pressure block holder 26 has a connecting disc 261 and a holder body 262 extending outward from the outside of the connecting disc 261, the annular body 241 is disposed through the mounting hole 122 and the stopper flange 242 abuts against the inner surface of the mounting flange 123, the sleeve body 251 is inserted into the annular body 241 and extends into the housing 1, the electric push rod 21 is fixed in the sleeve body 251, the inner side surface of the flange 252 abuts against and is fixed to the end surface of the annular body 241 on the opposite side of the stopper flange 242, the inner side of the connecting plate 261 is mounted to the outer side surface of the flange 252, and the connecting plate 261 forms a passage for the movable pressing piece 23 to move together with the sleeve body 251.

As shown in fig. 10 to 15, the annular body 241 has a first shaft hole 2412, the sleeve body 251 has a second shaft hole 2511, and the connecting plate 261 has a third shaft hole 2612, the central axes of the first shaft hole 2412, the second shaft hole 2511, and the third shaft hole 2612 all coincide, and the first shaft hole 2412, the second shaft hole 2511, and the third shaft hole 2612 together form a passage through which the movable presser 23 moves. The electric push rod 21 is fixed at the gun head through the sleeve body 251, the movable pressing block 23 is fixedly connected to the push rod body 211 of the electric push rod 21, and the movable pressing block 23 and the push rod body 211 of the electric push rod 21 are arranged in the channel in a clearance mode, so that the movable sliding block can move stably in the channel and cannot interfere with other parts. In other embodiments of the present disclosure, the support may have other configurations, and the present disclosure is not limited thereto.

In the specific embodiments provided by the present disclosure, the holder body 262 may be configured in any suitable manner. Alternatively, referring to fig. 15 and 16, the holder body 262 may be configured in an L-shape and include an extension 2621 and a receiving portion 2622 disposed at an angle to each other, the extension 2621 being fixedly coupled to the connecting plate 261, the extension 2621 being used to couple the receiving portion 2622 to the connecting plate 261 and to support the receiving portion 2622, the fixed pressing block 22 being partially received and fixed in the receiving portion 2622 in such a manner that the abutting surface 221 and the rib 222 of the fixed pressing block 22 are exposed to the outside to be used in cooperation with the pressing surface 231 of the movable pressing block 23 for heat-sealing the blood collection catheter, the extension 2621 having a bearing surface 2623 between the movable pressing block 23 and the fixed pressing block 22, wherein the fixed pressing block 22 is partially disposed on the bearing surface 2623, and the bearing surface 2623 is disposed to be used to bear the load of the fixed pressing block 22 together with the receiving portion 2622. In other embodiments of the present disclosure, the holder main body 262 may have other configurations, and the present disclosure is not limited thereto.

In particular embodiments provided by the present disclosure, and as shown with reference to fig. 5 and 11, a detent structure may be provided between the inner side of flange 252 and the outer side of mounting flange 123, and include a ball plunger 2524 and a groove set including a plurality of grooves 1231 spaced about the central axis, the ball of ball plunger 2524 being receivable in groove 1231 to limit rotation of flange 252 about the central axis relative to housing 1, wherein ball plunger 2524 and the groove set, respectively, may be arranged in any suitable manner. Alternatively, ball plunger 2524 may be disposed on one of the inner side of flange 252 and the outer side of mounting flange 123, and the set of grooves may be disposed on the other of the inner side of flange 252 and the outer side of mounting flange 123. Referring to fig. 5 and 11, ball plunger 2524 is secured to an inner side of flange 252 and a set of grooves opens out on an outer side of mounting flange 123, wherein a plurality of grooves 1231 of the set of grooves are spaced about the central axis on the outer side of mounting flange 123. In other embodiments of the present disclosure, the groove set may be further disposed on the inner side surface of the flange 252, and the ball plunger 2524 may be disposed on the outer side surface of the mounting flange 123, wherein the plurality of grooves 1231 of the groove set are disposed at intervals around the central axis on the inner side surface of the flange 252, for which the present disclosure is not particularly limited. Here, the plurality of grooves 1231 may be disposed at equal intervals or disposed at unequal intervals, a central angle corresponding to two adjacent grooves 1231 is an angle at which the heat sealing mechanism can rotate once, and a jaw opposite to the bearing surface 2623 formed between the fixed pressing block 22 and the movable pressing block 23 changes its orientation along with the rotation of the heat sealing mechanism, for example, a button 6 (described below) on the holding portion may be a position corresponding to a finger end of an index finger during the use of the user to facilitate the operation, and at this time, if the heat sealing mechanism is rotated, the angle of the jaw relative to the user may be changed, thereby facilitating the selection of a proper posture for the operation.

In the specific embodiment provided by the present disclosure, referring to fig. 11 and 14, the fixing sleeve 25 may be formed with an operation ring 253 extending outward along the central axis on the outer periphery of the flange 252 to realize the rotation of the heat sealing mechanism 2 by rotating the operation ring 253, and for the convenience of rotation and the prevention of slipping, an anti-slip structure 2531 is provided on the outer surface of the operation ring 253, for example, the anti-slip structure 2531 is configured as a surface anti-slip texture, and may be an additionally provided rubber sleeve or the like.

In the specific embodiment provided by the present disclosure, referring to fig. 1 to 8, the housing 1 may include a housing cover 11 and a housing 12 which are engaged with each other, the housing cover 11 being detachably attached to the housing 12, and the housing 12 being configured with the gun head in a tubular shape. With this structure, the heat sealing mechanism 2, the high frequency generator 3, the secondary battery 4, etc. can be mounted on the case 12 and then the case cover 11 can be closed to complete the mounting of the heat sealing gun, and therefore, the structure of the case 1 is advantageous for the mounting operation.

The housing cover 11 and the housing 12 may be configured in any suitable manner to achieve a connection therebetween. Alternatively, the housing cover 11 and the housing 12 are cooperatively connected by a snap structure, which may be configured to include a snap and a card slot capable of cooperating with each other, the snap being provided to one of the housing cover 11 and the housing 12, and the card slot being provided to the other of the housing cover 11 and the housing 12. As shown in fig. 2 to 8, a first buckle 111 is formed on the housing cover 11, a panel mounting base 115 is formed at the other end of the holding portion of the housing cover 11, a second buckle 1152 is formed on the panel mounting base 115, a positioning mounting post 112 is further formed on the inner side of the housing cover, a first clamping groove 126 and a second clamping groove 127 which are opposite to and matched with the first buckle 111 and the second buckle 1152 are formed on the housing 12, a screw hole 125 which is matched and connected with the positioning mounting post 112 through a fastener is further formed on the inner side of the housing 12, the first buckle 111 and the first clamping groove 126 as well as the second buckle 1152 and the second clamping groove 127 are respectively matched and connected correspondingly, and the positioning mounting post 112 is connected to the outer side of the housing 12 through the screw hole 125 through a fastener, so that the connection between the housing cover 11 and the housing 12 can be completed. In other embodiments of the present disclosure, the housing cover 11 and the housing 12 may be configured in other manners, for example, magnetic members that can cooperate with each other are disposed on the housing cover 11 and the housing 12 to achieve connection therebetween. The disclosure is not limited in this regard. In addition, in other embodiments of the present disclosure, the snaps and the card slots may be arranged in any suitable manner, for example, the snaps include a first snap 111 disposed on the housing cover 11 and a second snap 1152 disposed on the housing 12, and the card slots include a first card slot 126 disposed on the housing cover 11 and a second card slot 127 disposed on the housing 12, wherein the first snap 111 and the first card slot 126 and the second snap 1152 and the second card slot 127 are respectively and correspondingly connected in a matching manner, which is not limited in this disclosure.

Further, the cover 11 and the housing 12 may be connected by a fastening member, for example, a stud bolt for screw-fitting a bolt is formed on one of the cover 11 and the housing 12, and a mounting hole aligned with the stud bolt is formed on the other of the cover 11 and the housing 12, so that the bolt can be fastened to the stud bolt through the mounting hole, thereby securely connecting the cover 11 and the housing 12.

Of course, in the embodiments provided by the present disclosure, the connection between the cover 11 and the housing 12 may use both snap-in and fastener-type connections. In this regard, the present disclosure is not particularly limited.

In the specific embodiment provided in the present disclosure, referring to fig. 1 and fig. 2, the housing 1 may be provided with a charging interface 8, the gun head is located at one end of the holding portion, and the charging interface 8 is located at the other end of the holding portion, that is, the charging interface 8 and the gun head are arranged opposite to each other along the holding portion, so as to facilitate charging and heat sealing of the handheld charging gun. As shown in fig. 3, an interface slot 113 is disposed on the housing cover 11, and the interface slot 113 is used to receive and fix the charging interface 8, so that the charging interface 8 is connected to an external power source through the interface slot 113.

In the embodiment provided by the present disclosure, referring to fig. 2, the handheld heat sealing gun 100 may include a control module 5, the control module 5 is fixed in the housing 1, the high frequency generator 3 and the electric push rod 21 are both electrically connected to the control module 5, the control module 5 can control the high frequency generator 3 to open and close, and can control the electric push rod 21 to drive the movable pressing block 23 to move; the first and second intervals and the heating time of the high frequency generator 3 can be set by the control module 5.

Wherein, the hand-held heat sealing gun 100 may further include a button 6 mounted on the casing 1, as shown in fig. 5, a button mounting groove 124 is formed on the housing 12, the button 6 is mounted in the button mounting groove 124, and is connected to the control module 5 through a PCB. The button 6 has a power-on position in which the control module 5 is energized and an operating position in which the control module 5 controls the electric push rod 21 to drive the movable press block 23 to move towards the clamping position, and the control module 5 is capable of controlling the high frequency generator 3 to be turned on and off. In addition, the button 6 may also have a power off position in which the control module 5 is powered off. During operation, only need through the three position of adjustment button 6, start position, operation position and shutdown position promptly, can realize the heat seal of blood bag pipe, compare in the manual regulation among the prior art, the regulation easy operation of button 6, and can guarantee that the heat seal effect of blood bag pipe is reliable and stable.

In the embodiment provided in the present disclosure, referring to fig. 2 and 4, in order to ensure that the handheld heat sealing gun 100 can have stable and reliable heat sealing effect for blood bag catheters with different thicknesses, the housing 1 may be provided with an adjusting panel 7, wherein the housing cover 11 is formed with a panel mounting seat 115 for mounting the adjusting panel 7 at the other end of the holding portion, and the panel mounting seat 115 is formed with an avoiding opening 1151, and the adjusting panel 7 is electrically connected to the control module 5 through the avoiding opening 1151, so as to complete the first and second intervals and the heating time of the high-frequency generator 3 through the adjusting panel 7. The adjusting panel 7 is provided with a display screen 71 and a plurality of keys 72, the display screen 71 is used for displaying current heat sealing parameters such as the first and second distances and the heating time of the high-frequency generator 3, even the heating schedule (for example, the real-time heating duration or the remaining duration), and the keys 72 are used for manually inputting/adjusting the heat sealing parameters such as the first and second distances and the heating time of the high-frequency generator 3, so as to adjust the most suitable first and second distances and heating time in real time according to different blood bag catheters (for example, the tube diameter, the wall thickness, the catheter material, and the like) to ensure the stable and reliable heat sealing effect.

When the mount is assembled with the housing 12, first, the mounting ring 24 is fitted into the housing 12 from the inside thereof, and the annular body 241 of the mounting ring 24 is inserted into the mounting hole 122 and the stop flange 242 abuts against the inner surface of the mounting flange 123. Then, the movable pressing block 23 is fixedly connected to the push rod body 211 of the electric push rod 21, then the sleeve body 251 of the fixed sleeve 25 is inserted into the annular body 241 and extends into the housing 1, and the electric push rod 21 is fixed in the sleeve body 251, the electric push rod 21 and the sleeve body 251 can have various connection modes, for example, a threaded connection, a snap fit, etc., the inner side of the flange 252 abuts the annular body 241, so that the first through hole 2521 of the flange 252 is aligned with the connection hole 2411 of the annular body 241, and the flange 252 is secured by fasteners to the end face on the opposite side of the stop flange 242, at the same time, the ball of the ball plunger 2524 mounted on the mounting limit groove 2523 of the flange 252 is received in the groove 1231 of the mounting flange 123, so that the position of the fixed sleeve 25 fixed with the electric push rod 21 and the mounting ring 24 relative to the shell 1 does not change. Finally, the fixed pressing block 22 is now mounted on the bracket main body 262, and the second through hole 2611 of the connecting disc 261 is aligned with the connecting post 2522 on the flange 252, and the inner side of the connecting disc 261 is mounted on the outer side of the flange 252 by a fastener. After the assembly of the stand and the case 12 is completed, as shown in fig. 2, the high frequency generator 3, the rechargeable battery 4, the control module 5, the button 6, the adjustment panel 7, and the charging interface 8 are respectively and correspondingly mounted on the housing 1, and the mounting of the hand-held heat sealing gun 100 is completed.

The first shaft hole 2412 of the mounting ring 24, the second shaft hole 2511 of the fixing sleeve 25 and the third shaft hole 2612 of the press block bracket 26 together form a channel for the movable press block 23 to move, and an avoidance through hole for the lead 31 of the high-frequency generator 3 to pass through is formed in the first shaft hole 2412, the second shaft hole 2511 and the third shaft hole 2612, so that the high-frequency generator 3 is electrically connected with the fixed press block 22 and the movable press block. Secondly, in order to facilitate observation of the heat seal, the housing 1 may be provided with a display lamp 9, the display lamp 9 is electrically connected to the control module 5 and passes through the elongated slot 114 of the housing cover 11, so that the display lamp 9 is exposed to the housing 1, and the heat seal condition is observed in real time by the brightness, darkness, color and the like of the display lamp 9, so as to ensure the stability and reliability of the heat seal effect. The anti-slip unit 121 may be disposed in various ways, for example, one of the anti-slip units is made of soft rubber, silica gel, or the like; secondly, the holding part is arranged into a grid or salient point structure; thirdly, the grip part is made into a structure with a curve or an arc, and the like, so that the friction force of the grip part of the heat sealing gun is increased.

Here, the use of the handheld heat sealing gun provided by the present disclosure is described with reference to the above embodiments. When the blood bag sealing device is used, the angle of the sealing mechanism 2 can be adjusted according to the trend of a blood bag catheter to be sealed or the posture of a user, wherein the ball head of the ball plunger 2524 on the flange 252 is accommodated in the groove 1231 of the mounting flange 123, at this time, the position of the sealing mechanism 2 relative to the housing 1 does not change, and when the ball head of the ball plunger 2524 is pressed and is separated from the groove 1231, the sealing mechanism 2 can be rotated to a proper angle by rotating the operating ring 253 and enabling the ball head of the ball plunger 2524 to move and fall into the groove 1231 with a required angle. Some of the settings of the sealing parameters described above can be made by adjusting the panel 7. The heat sealing operation is started by operating the button 6, wherein the control button 6 is switched from the off position to the on position and the control module 5 is powered on. Then, the first interval, the second interval and the heating time are manually set on the adjusting panel 7 according to the pipe diameter, the wall thickness, the material and the like of the blood bag conduit to be heat-sealed, and then, the blood bag conduit to be heat-sealed is put into the heat-sealing area between the fixed pressing block 22 and the movable pressing block 23 from the jaw, wherein when the jaw is upward, the blood bag conduit can be placed on the bearing surface 2623. Then the control button 6 is switched to the working position, the control module 5 controls the electric push rod 21 to drive the movable pressing block 23 to move towards the clamping position, and the control module 5 can control the high frequency generator 3 to be opened and closed, namely, to perform heat sealing. After the heat seal operation is completed, the control button 6 is switched to the power-off position, and the control module 5 is powered off.

According to a second aspect of the present disclosure, there is provided a heat sealing apparatus, as shown in fig. 17 and 18, comprising a charging base 200 and the above-mentioned hand-held heat sealing gun 100, wherein the hand-held heat sealing gun 100 is removably placed on the charging base 200 to charge the rechargeable battery 4.

In the specific embodiment provided by the present disclosure, referring to fig. 17 and 18, the housing 1 is provided with a charging interface 8 connected to the rechargeable battery 4, the charging stand 200 is provided with a charging plug 202, and the charging plug 202 is in plug-in fit with the charging interface 8 to charge the rechargeable battery 4, wherein the charging stand 200 is connected to an external power source through a wire, when in a fit state, the handheld heat sealing gun 100 is partially inserted into the plug-in slot 201, and the charging interface 8 and the charging plug 202 are matched with each other and start to charge the rechargeable battery 4. The charging seat 200 is used for charging the rechargeable battery 4 in the handheld heat sealing gun 100, so that the handheld heat sealing gun 100 can be separated from the constraint of a charging wire, and the application range is wider; the weight of the hand-held heat sealing gun 100 can be reduced, and the hand-held heat sealing gun is convenient to carry and use.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (16)

1. A hand-held heat sealing gun, characterized in that the hand-held heat sealing gun (100) comprises:

a housing (1) having a grip portion and a tip portion;

the heat seal mechanism (2) comprises a support, an electric push rod (21), a fixed pressing block (22) and a movable pressing block (23) which are arranged oppositely, the support is arranged at the head of the gun, the electric push rod (21) is positioned in the shell (1) and fixed on the support, the fixed pressing block (22) is fixed on the support and exposed to the gun head, the movable pressing block (23) is movably arranged on the support, the electric push rod (21) drives the movable pressing block (23) to move so as to switch between a releasing position and a clamping position, in the release position, a first distance between the movable pressing block (23) and the fixed pressing block (22) is larger than the outer diameter of the blood bag conduit to be heat-sealed, in the clamping position, the second distance between the movable pressing block (23) and the fixed pressing block (22) is less than two times of the wall thickness of the blood bag conduit to be heat-sealed;

a high frequency generator (3) fixedly arranged in the shell (1) and respectively electrically connected with the fixed pressing block (22) and the movable pressing block (23) so as to heat the movable pressing block (23) and the fixed pressing block (22); and the number of the first and second groups,

a rechargeable battery (4) fixedly arranged in the holding part and used for supplying power to the high frequency generator (3) and the electric push rod (21),

the support is limited with a central axis, a locking structure is arranged between the heat sealing mechanism (2) and the shell (1), the locking structure is provided with a release state and a locking state, the heat sealing mechanism (2) can rotate around the central axis in the release state, and the heat sealing mechanism (2) can keep a position relative to the shell (1) in the locking state.

2. The hand-held heat sealing gun according to claim 1, characterized in that the fixed pressure block (22) has an abutment surface (221) facing the movable pressure block (23) in the moving direction of the movable pressure block (23), the abutment surface (221) is provided with a raised strip rib (222), the strip rib (222) is arranged perpendicular to the direction of the clamped portion of the blood bag conduit to be heat sealed, and the raised height of the strip rib (222) is smaller than the second pitch, so that the heat sealed blood bag conduit forms a cutting line.

3. The hand-held heat sealing gun according to claim 1, characterized in that the movable pressure piece (23) has a chamfered surface (232) and a press face (231) facing the fixed pressure piece (22), the chamfered surface (232) being provided on both sides of the press face (231) in the direction of the clamped part of the blood bag conduit to be heat sealed.

4. Hand-held heat sealing gun according to claim 1, characterised in that the angle of rotation of the sealing mechanism (2) around the centre axis is steplessly adjustable.

5. Hand-held heat sealing gun according to claim 1, characterised in that the sealing mechanism (2) can be rotated to a plurality of angular positions about the centre axis.

6. The hand-held heat sealing gun according to claim 5, characterized in that the holder includes a mounting ring (24), a fixing sleeve (25) and a pressure block holder (26), the gun head is formed with a mounting hole (122) and a mounting flange (123) is formed in the mounting hole (122), the mounting ring (24) has an annular body (241) and a stopper flange (242) extending radially outward at one end of the annular body (241), the fixing sleeve (25) has a sleeve body (251) and a flange (252) at one end of the sleeve body (251), the pressure block holder (26) has a connecting plate (261) and a holder main body (262) extending outward from the outside of the connecting plate (261),

the annular body (241) is arranged in the mounting hole (122) in a penetrating mode, the stopping flange (242) abuts against the inner surface of the mounting flange (123), the sleeve body (251) is inserted into the annular body (241) and extends into the shell (1), the electric push rod (21) is fixed in the sleeve body (251), the inner side face of the flange plate (252) abuts against and is fixed on the end face of the annular body (241) opposite to the stopping flange (242), the inner side of the connecting plate (261) is installed on the outer side face of the flange plate (252), and the connecting plate (261) and the sleeve body (251) form a channel for the movable pressing block (23) to move together.

7. The hand-held heat sealing gun according to claim 6, characterized in that the holder body (262) is configured in an L-shape and comprises an extension (2621) and a receptacle (2622) arranged at an angle to each other, the extension (2621) being fixedly connected to the connection disc (261), the stationary pressure piece (22) being partially received and fixed in the receptacle (2622), the extension (2621) having a bearing surface (2623) between the movable pressure piece (23) and the stationary pressure piece (22).

8. The hand-held heat sealing gun of claim 6, characterized in that the detent structure is disposed between an inner side of the flange (252) and an outer side of the mounting flange (123) and comprises a ball plunger (2524) and a groove set comprising a plurality of grooves (1231) spaced about the central axis, the ball of the ball plunger (2524) being receivable in the groove (1231) to limit rotation of the flange (252) relative to the housing (1) about the central axis,

the ball plunger (2524) is arranged on one of the inner side surface of the flange plate (252) and the outer side surface of the mounting flange (123), and the groove group is arranged on the other of the inner side surface of the flange plate (252) and the outer side surface of the mounting flange (123).

9. The hand-held heat sealing gun according to claim 6, characterized in that the fixing sleeve (25) is formed with an operating ring (253) extending outward along the central axis on the outer periphery of the flange (252), and the outer surface of the operating ring (253) is provided with a non-slip structure (2531).

10. Hand-held heat sealing gun according to claim 1, characterised in that the housing (1) comprises a housing cover (11) and a housing (12) cooperating with each other, the housing cover (11) being detachably connected to the housing (12), the housing (12) being configured with the gun head in a tubular shape.

11. The hand-held heat sealing gun according to claim 1, characterised in that the housing (1) is provided with a charging interface (8), the gun head being located at one end of the grip, the charging interface (8) being located at the other end of the grip.

12. The hand-held heat sealing gun according to any one of claims 1-11, wherein the hand-held heat sealing gun (100) comprises a control module (5), the control module (5) is fixed in the housing (1), the high frequency generator (3) and the electric push rod (21) are both electrically connected with the control module (5), the control module (5) can control the high frequency generator (3) to open and close, and can control the electric push rod (21) to drive the movable pressing block (23) to move;

wherein the first and second spacing and the heating time of the high frequency generator (3) are set by the control module (5).

13. The hand-held heat sealing gun according to claim 12, characterized in that the hand-held heat sealing gun (100) further comprises a button (6) mounted on the housing (1), the button (6) having an on position in which the control module (5) is energized and an operating position in which the control module (5) controls the electric push rod (21) to drive the movable press block (23) towards the clamping position.

14. The hand-held heat sealing gun according to claim 12, characterized in that the housing (1) is provided with an adjustment panel (7), the adjustment panel (7) being provided with a display screen (71) and a plurality of keys (72), the display screen (71) being used for displaying the current first and second spacings and the heating time of the high frequency generator (3), the keys (72) being used for manually inputting/adjusting the first and second spacings and the heating time of the high frequency generator (3).

15. A sealing device, characterized in that it comprises a charging stand (200) and a hand-held sealing gun (100) according to any of claims 1-14, said hand-held sealing gun (100) being removably placed on said charging stand (200) for charging said rechargeable battery (4).

16. The heat sealing device according to claim 15, characterized in that the housing (1) is provided with a charging interface (8) for connecting with a rechargeable battery (4), the charging dock (200) is provided with a charging plug (202), and the charging plug (202) is in plug-in fit with the charging interface (8) for charging the rechargeable battery (4).

Images