CN214681816U - Arm support frame used in process of using liquid-transfering gun - Google Patents

Abstract

The utility model discloses an arm support frame when using a pipette, which comprises an arm support frame and is characterized in that the arm support frame comprises an arm support bracket, an angle adjusting structure and a height adjusting structure, the angle adjusting structure is arranged at the bottom of the arm support bracket, the height adjusting structure is arranged at the bottom of the angle adjusting structure, the arm support bracket is fixedly connected with the angle adjusting structure, and the height adjusting structure is fixedly connected with the angle adjusting structure; a cavity structure is provided for receiving the angle adjustment structure. The angle and the height of the arm supporting bracket can be flexibly adjusted by the arrangement, so that the arm supporting bracket can move along with the arm of an operator, the arm of the operator is well supported, and the fatigue of the operator is relieved.

Description

Arm support frame used in process of using liquid-transfering gun

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to is an arm support frame when using liquid-transfering gun.

Background

Pipette guns are a type of pipettor commonly used in laboratories for the pipetting of small or minute quantities of liquids.

Before pipetting, the pipette, the tip and the liquid are kept at the same temperature. When liquid is sucked, the liquid transfer device keeps a vertical state, and the gun head is inserted 2-3 mm below the liquid level. Before imbibing, the imbibing nozzle can be wetted by imbibing and discharging liquid for several times. Two pipetting methods can then be used.

One is the forward pipetting method. The button is depressed with the thumb to a first stop point and then slowly released back to the origin. Then the button is pressed to a first stop point to discharge liquid, and the button is continuously pressed to a second stop point for a little stop moment to blow out residual liquid. Finally, the button is released.

The second is a reverse liquid transfer method. The method is generally used for transferring high-viscosity liquid, bioactive liquid, easy-foaming liquid or trace liquid, and the principle is that more than a set range of liquid is sucked firstly, and the residual liquid is not required to be blown out when the liquid is transferred. The button is pressed first to a second stop point and slowly released to the origin. And then pressing the button to the first stop point to discharge the liquid with the set measuring range, continuously keeping the button pressed to be positioned at the first stop point, taking down the gun head with the residual liquid, and abandoning the gun head.

In the use of above-mentioned pipette, because there is not the support, operator's operation arm is in unsettled state all the time, under the condition of long-time operation, appears the hand ache easily, the palm goes out the cocoon, tenosynovitis can appear in the serious person, is unfavorable for very much that operator's is healthy.

To the above problems, the present invention provides an arm support frame for use of a pipette.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problem that proposes among the background art, the utility model provides an arm support frame when using the liquid-transfering gun.

An arm support frame used when a pipette is used comprises an arm support frame and is characterized in that the arm support frame comprises an arm support bracket, an angle adjusting structure and a height adjusting structure, wherein the angle adjusting structure is arranged at the bottom of the arm support bracket; a cavity structure is provided for receiving the angle adjustment structure. The angle and the height of the arm supporting bracket can be flexibly adjusted by the arrangement, so that the arm supporting bracket can move along with the arm of an operator, the arm of the operator is well supported, and the fatigue of the operator is relieved.

Further, the arm support is an arc-shaped plate with an upward opening, and the arc-shaped plate is inosculated with the radian of the arms of the human body. This arrangement is capable of supporting the operator's arm well.

Further, the arm support comprises a soft pad, the soft pad is connected with the arm support in a combined mode, and the soft pad is in contact with the arm of an operator. When in use, the soft cushion has good comfort.

Furthermore, the soft cushion is made of memory cotton or sponge.

Or a soft sleeve capable of wrapping the arm support bracket is arranged, and the soft sleeve is sleeved with the arm support bracket. When in use, the soft sleeve is sleeved on the arm support.

Furthermore, the angle adjusting structure comprises a base, a first adjusting arm, a second adjusting arm and an angle adjusting block, wherein the directions of the first adjusting arm and the second adjusting arm are mutually vertical, the first adjusting arm is rotationally connected with the base, and the second adjusting arm is rotationally connected with the base; the angle adjusting block is movably connected with the first adjusting arm and comprises an integrally connected extending shaft, the extending shaft penetrates through the first adjusting arm and the second adjusting arm, and the free end of the extending shaft is fixedly connected with the arm support. The first adjusting extending arm and the second adjusting arm can rotate, and the angle of the arm supporting bracket can be adjusted in a large range.

Further, the base includes the bottom plate of "cross", and the free end of bottom plate includes the connecting plate with the direction vertically of bottom plate, and the connecting plate upwards extends, and the connecting plate rotates with first regulating arm and second regulating arm to be connected.

Further, the connecting plates comprise an A1 connecting plate, an A2 connecting plate, a B1 connecting plate and a B2 connecting plate which are distributed at four free ends of the bottom plate, the A1 connecting plate and the A2 connecting plate are in the same straight line, and the B1 connecting plate and the B2 connecting plate are in the same straight line.

Furthermore, two ends of the first adjusting arm are respectively and rotatably connected with an A1 connecting plate and an A2 connecting plate, and two ends of the second adjusting arm are respectively and rotatably connected with a B1 connecting plate and a B2 connecting plate; a first through hole rotatably connected with the first adjusting arm is formed in each of the A1 connecting plate and the A2 connecting plate and penetrates through the first adjusting arm, a second through hole rotatably connected with the second adjusting arm is formed in each of the B1 connecting plate and the B2 connecting plate and penetrates through the second adjusting arm, a first connecting shaft rotatably connected with the first adjusting arm is arranged in the first through hole, and a second connecting shaft rotatably connected with the second adjusting arm is arranged in the second through hole. This arrangement ensures that the first and second adjustment arms can rotate.

Furthermore, the first adjusting arm and the second adjusting arm are both of a semicircular structure, the free ends on the two sides of the bottom of the first adjusting arm are penetrated through by the first through hole, and the free ends on the two sides of the bottom of the second adjusting arm are penetrated through by the second through hole.

Furthermore, the center of the first adjusting arm comprises a first window allowing the extension shaft to extend out, the center of the second adjusting arm comprises a second window allowing the extension shaft to extend out, the radian of the first window is the same as that of the first adjusting arm, the radian of the second window is the same as that of the second adjusting arm, the extension shaft moves along the first window in a first direction, the extension shaft moves along the second window in a second direction, and the first direction is perpendicular to the second direction.

Further, the first window and the second window have an arc length α, the first adjusting arm and the second adjusting arm have an arc length β, and 1/2 β < α < β. This arrangement provides sufficient space for the protruding shaft to move.

Furthermore, the angle adjusting block is an arc-shaped block, the main body of the extension shaft is a cylinder, and the arc-shaped block and the extension shaft are integrally connected.

Further, first regulating arm includes the connection structure with angle adjusting block swing joint.

Further, connection structure includes connecting rod and connection ball, a connecting rod and a connecting axle fixed connection, connects the ball and rotates with the connecting rod to be connected, connects the ball and rotates around the connecting rod, angle adjusting block and connection ball sliding connection. The arrangement realizes the direction adjustment of the angle adjusting block.

Further, set up the spout that can hold the angle adjusting block on the connection ball, the angle adjusting block is located the spout, and the angle adjusting block passes through the spout and is connected ball sliding connection.

Furthermore, the direction of the sliding groove is the same as that of the first adjusting arm and is on the same plane, the extending shaft is stirred to enable the angle adjusting block to slide along the direction of the sliding groove, and the second adjusting arm rotates under the action of the extending shaft; the extension shaft is shifted to move along the direction of the second adjusting arm, the angle adjusting block drives the connecting ball to rotate, and the first adjusting arm rotates under the action of the extension shaft. During the use, the motion of operator's arm drives the motion that the arm supported the support to directly make the motion of projecting shaft, when playing the supporting role to operator's arm, can satisfy the demand of angle modulation.

Furthermore, the free end of the angle adjusting block is provided with a connecting block which is used for supporting and supporting the arm to be fixedly connected, and the connecting block and the arm supporting support are fixedly connected through a screw.

Further, the cavity structure is a circular cavity box, and an opening is formed in the upper end of the cavity structure. The cavity structure of this kind of setting has the aesthetic property, and does not have edges and corners, and is safe.

Further, the locking piece for locking the position of the connecting ball is arranged, the position of the connecting ball can be fixed through the locking piece, and the position of the arm supporting frame can be fixed when needed.

Further, the altitude mixture control structure is the electron telescopic link, and the electron telescopic link includes sleeve pipe and lifter, and the lifter is located the sleeve pipe, and the electron telescopic link includes power structure and on-off switch. The arrangement is convenient to use.

Further, the base that the setting can remove, the base setting is in the bottom of altitude mixture control structure, base and altitude mixture control structure fixed connection, and the bottom of base sets up the universal wheel, and the universal wheel includes the braking structure. This arrangement allows the arm support structure to be moved into position.

Or a first clamping structure for fixing the arm supporting structure on the experiment table is arranged, and the first clamping structure is fixedly connected with the height adjusting structure. When the clamping structure is used, the clamping structure is fixed on the experiment table.

Furthermore, the first clamping structure comprises a first clamping plate and a second clamping plate, the first clamping plate is fixedly connected with the bottom of the sleeve, the second clamping plate is sleeved outside the sleeve, the first clamping plate slides upwards or downwards along the direction of the sleeve, and the second clamping plate comprises a screwing structure. When the clamping device is used, the first clamping plate is tightly attached to the bottom surface of the experiment table, the second clamping plate is tightly attached to the upper surface of the experiment table, and the second clamping plate is fastened on the experiment table through a screwing structure.

Furthermore, the tightening structure is a tightening screw rod provided with an external thread, a matched threaded hole is formed in the second clamping plate, and the tightening screw rod is in threaded connection with the threaded rod. When the screw is used, the screwing screw rod is screwed with the threaded hole.

Further, a support for supporting the non-primary operating arm is provided. The arm of main operation holds the pipette, and instruments such as test tube are held to non-main operation arm, and support piece's setting makes both sides arm can both obtain supporting, makes two side arms all be in non-unsettled state, alleviates fatigue.

Furthermore, the supporting piece is fixedly connected with the cavity structure through a fixing rod.

Or the support is connected with the experiment table in a combined manner.

Further, the support piece comprises an arm support and a telescopic plate, and the bottom of the arm support is fixedly connected with the telescopic plate. The arm support can be adjusted to a proper position through the expansion plate.

Further, the expansion plate comprises an outer sleeve plate and a lifting plate, and the lifting plate is positioned inside the outer sleeve plate.

Further, the clamping structure II used for fixing the supporting piece is arranged, the clamping structure II is in combined connection with the experiment table, the clamping structure II comprises a fixing plate and an adjusting plate, the fixing plate is fixedly connected with the bottom of the outer sleeve plate, the adjusting plate is sleeved with the outer sleeve plate, the adjusting plate upwards or downwards slides along the outer sleeve plate, and the adjusting plate comprises a locking structure. This arrangement allows the support to be secured to the laboratory bench.

Furthermore, the locking structure is a screwing screw rod, a matched threaded hole is formed in the adjusting plate, and the screwing screw rod is in threaded connection with the threaded hole. During the use, will screw up screw rod and screw hole and screw up to fix support piece on the laboratory bench.

Further, the arm supporting structure is integrally made of stainless steel materials. The arm support structure of this arrangement is strong and has sufficient rigidity.

The utility model has the advantages that: (1) the utility model can support the arms of experimenters, and solves the problem that the arms are easy to fatigue, ache and even cause tenosynovitis when in a suspension state; (2) the arm support bracket can be adjusted to a proper height according to the height of an experimenter, and has an individualized design; (3) the arm support is provided with a soft cushion or a soft sleeve, so that the arm support is soft and comfortable and does not hurt the arms; (4) the arm supporting structure is connected with the experiment table in a combined mode or can be moved, and the arm supporting structure suitable for experiment requirements and personal habits is selected according to needs to be used.

Drawings

Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present invention;

fig. 2 is a schematic view of a partially enlarged structure of embodiment 1 of the present invention;

FIG. 3 is a schematic view showing a connection state between the angle adjusting structure and the arm support of the present invention;

fig. 4 is a schematic view of the overall structure of the angle adjusting structure of the present invention;

fig. 5 is a schematic front view of the angle adjusting structure of the present invention;

FIG. 6 is a schematic view showing the connection state between the connection ball and the angle adjustment block of the present invention;

fig. 7 is a schematic view of the overall structure of embodiment 3 of the present invention;

fig. 8 is a schematic front view of embodiment 3 of the present invention;

fig. 9 is a schematic structural view of embodiment 4 of the present invention;

fig. 10 is a schematic structural view of embodiment 5 of the present invention;

fig. 11 is a schematic structural view of embodiment 6 of the present invention;

in the figure, 1, an arm support bracket; 2. a cavity structure; 3. a base; 31. a first adjustment arm; 311. a first connecting shaft; 312. a first window; 32. a second adjustment arm; 321. a second connecting shaft; 322. a second window; 33. an angle adjusting block; 34. an extension shaft; 341. connecting blocks; 35. a connecting ball; 351. a chute; 352. a connecting rod; 4. an electric telescopic rod; 41. an on-off key; 5. an electric telescopic rod; 6. a base; 61. a universal wheel; 7. a clamping structure; 71. a first clamping plate; 72. a second clamping plate; 73. a threaded hole; 74. screwing down the screw; 8. a support member; 81. a retractable plate; 82. a fixing plate; 83. an adjusting plate; 84. and (5) fixing the rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described in detail below with reference to specific embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and those skilled in the art can easily understand other advantages and effects of the present invention from the disclosure in the specification. The utility model discloses can also implement or use through other different concrete implementation manners, under the condition of conflict-free, the characteristics in following embodiment and the embodiment can make up each other, based on the embodiment in the utility model, all other embodiments that the ordinary skilled in the art obtained under the prerequisite of not making creative work all belong to the scope of protection of the utility model.

Example 1

As shown in fig. 1-2, an arm support frame for use with a pipette in the present embodiment includes an arm support frame, and is characterized in that the arm support frame includes an arm support base 1, an angle adjusting structure and a height adjusting structure, the angle adjusting structure is disposed at the bottom of the arm support base 1, the height adjusting structure is disposed at the bottom of the angle adjusting structure, the arm support base 1 is fixedly connected to the angle adjusting structure, and the height adjusting structure is fixedly connected to the angle adjusting structure; a cavity structure 2 is provided for accommodating the angle adjustment structure. The angle and the height of the arm supporting bracket 1 can be flexibly adjusted by the arrangement, so that the arm supporting bracket 1 can move along with the arm of an operator, the arm of the operator is well supported, and the fatigue of the operator is relieved.

The arm support 1 is an arc plate with an upward opening, and the arc plate is inosculated with the radian of the arm of the human body. This arrangement is capable of supporting the operator's arm well.

The cavity structure 2 is a circular cavity box, and an opening is arranged at the upper end of the cavity structure 2. The cavity structure 2 with the arrangement has the advantages of attractive appearance, no edges and corners and safety. The cavity structure 2 may also be a cavity box of other shapes, such as a rectangular cavity box, capable of accommodating the angle adjustment structure.

The height adjusting structure is an electronic telescopic rod, the electronic telescopic rod comprises a sleeve and a lifting rod, the lifting rod is located in the sleeve, and the electronic telescopic rod comprises a power supply structure and an on-off key 41. The arrangement is convenient to use.

The arm supporting structure is integrally made of stainless steel materials. The arm support structure of this arrangement is strong and has sufficient rigidity.

Example 2

As shown in fig. 3-6, an arm support frame for use with a pipette in the present embodiment includes an arm support frame, and is characterized in that the arm support frame includes an arm support base 1, an angle adjusting structure and a height adjusting structure, the angle adjusting structure is disposed at the bottom of the arm support base 1, the height adjusting structure is disposed at the bottom of the angle adjusting structure, the arm support base 1 is fixedly connected to the angle adjusting structure, and the height adjusting structure is fixedly connected to the angle adjusting structure; a cavity structure 2 is provided for accommodating the angle adjustment structure. The angle and the height of the arm supporting bracket 1 can be flexibly adjusted by the arrangement, so that the arm supporting bracket 1 can move along with the arm of an operator, the arm of the operator is well supported, and the fatigue of the operator is relieved.

On the basis of embodiment 1, this embodiment specifically sets an angle adjustment structure, and the same parts are not described again:

the angle adjusting structure comprises a base 3, a first adjusting arm 31, a second adjusting arm 32 and an angle adjusting block 33, wherein the directions of the first adjusting arm 31 and the second adjusting arm 32 are mutually vertical, the first adjusting arm 31 is rotatably connected with the base 3, and the second adjusting arm 32 is rotatably connected with the base 3; the angle adjusting block 33 is movably connected with the first adjusting arm 31, the angle adjusting block 33 comprises an integrally connected extending shaft 34, the extending shaft 34 penetrates through the first adjusting arm 31 and the second adjusting arm 32, and the free end of the extending shaft 34 is fixedly connected with the arm support 1. The first adjusting extending arm and the second adjusting arm 32 can rotate, and the angle of the arm supporting bracket 1 can be adjusted in a large range.

The base 3 comprises a bottom plate in the shape of a cross, the free end of the bottom plate comprises a connecting plate which is vertical to the direction of the bottom plate, the connecting plate extends upwards, and the connecting plate is rotatably connected with a first adjusting arm 31 and a second adjusting arm 32.

The connecting plates comprise an A1 connecting plate, an A2 connecting plate, a B1 connecting plate and a B2 connecting plate which are distributed at four free ends of the bottom plate, the A1 connecting plate and the A2 connecting plate are on the same straight line, and the B1 connecting plate and the B2 connecting plate are on the same straight line.

Two ends of the first adjusting arm 31 are respectively and rotatably connected with an A1 connecting plate and an A2 connecting plate, and two ends of the second adjusting arm 32 are respectively and rotatably connected with a B1 connecting plate and a B2 connecting plate; a first through hole which is rotatably connected with the first adjusting arm 31 is formed in each of the A1 connecting plate and the A2 connecting plate, the first through hole penetrates through the first adjusting arm 31, a second through hole which is rotatably connected with the second adjusting arm 32 is formed in each of the B1 connecting plate and the B2 connecting plate, the second through hole penetrates through the second adjusting arm 32, a first connecting shaft 311 which is rotatably connected with the first adjusting arm 31 is arranged in the first through hole, and a second connecting shaft 321 which is rotatably connected with the second adjusting arm 32 is arranged in the second through hole. This arrangement ensures that the first and second adjusting arms 31 and 32 can be rotated.

The first adjusting arm 31 and the second adjusting arm 32 are both of a semicircular structure, the free ends of the two sides of the bottom of the first adjusting arm 31 are penetrated through by the first through hole, and the free ends of the two sides of the bottom of the second adjusting arm 32 are penetrated through by the second through hole.

The center of the first adjusting arm 31 includes a first window 312 allowing the extension shaft 34 to extend out, the center of the second adjusting arm 32 includes a second window 322 allowing the extension shaft 34 to extend out, the first window 312 has the same arc as the first adjusting arm 31, the second window 322 has the same arc as the second adjusting arm 32, the extension shaft 34 moves along the first window 312 in a first direction, the extension shaft 34 moves along the second window 322 in a second direction, and the first direction is perpendicular to the second direction.

The arc length of window one 312 and window two 322 is a, the arc length of the first and second adjustment arms 31 and 32 is β, 1/2 β < α < β. This arrangement provides sufficient space for the protruding shaft 34 to move.

The angle adjusting block 33 is an arc-shaped block, the main body of the protruding shaft 34 is a cylinder, and the arc-shaped block and the protruding shaft 34 are integrally connected.

The first adjustment arm 31 includes a connection structure that is movably connected to the angle adjustment block 33.

The connecting structure comprises a connecting rod 352 and a connecting ball 35, the connecting rod 352 is fixedly connected with the first connecting shaft 311, the connecting ball 35 is rotatably connected with the connecting rod 352, the connecting ball 35 rotates around the connecting rod 352, and the angle adjusting block 33 is slidably connected with the connecting ball 35. This arrangement realizes the directional adjustment of the angle adjusting block 33.

The connecting ball 35 is provided with a sliding groove 351 capable of accommodating the angle adjusting block 33, the angle adjusting block 33 is positioned in the sliding groove 351, and the angle adjusting block 33 is connected with the connecting ball 35 in a sliding mode through the sliding groove 351.

The direction of the sliding groove 351 is the same as that of the first adjusting arm 31 and is on the same plane, the extending shaft 34 is shifted to enable the angle adjusting block 33 to slide along the direction of the sliding groove 351, and the second adjusting arm 32 rotates under the action force of the extending shaft 34; the extension shaft 34 is shifted to move along the direction of the second adjusting arm 32, the angle adjusting block 33 drives the connecting ball 35 to rotate, and the first adjusting arm 31 is also rotated by the action of the extension shaft 34. When the angle adjusting device is used, the movement of the arm of an operator drives the arm support bracket 1 to move, so that the extension shaft 34 directly moves, the arm of the operator is supported, and meanwhile, the angle adjusting requirement can be met.

The free end of the angle adjusting block 33 is provided with a connecting block 341 for being fixedly connected with the arm support 1, and the connecting block 341 is fixedly connected with the arm support 1 through a screw.

Example 3

As shown in fig. 7-8, the arm support frame used when using the pipette in this embodiment includes an arm support frame, and is characterized in that the arm support frame includes an arm support base 1, an angle adjusting structure and a height adjusting structure, the angle adjusting structure is disposed at the bottom of the arm support base 1, the height adjusting structure is disposed at the bottom of the angle adjusting structure, the arm support base 1 is fixedly connected with the angle adjusting structure, and the height adjusting structure is fixedly connected with the angle adjusting structure; a cavity structure 2 is provided for accommodating the angle adjustment structure. The angle and the height of the arm supporting bracket 1 can be flexibly adjusted by the arrangement, so that the arm supporting bracket 1 can move along with the arm of an operator, the arm of the operator is well supported, and the fatigue of the operator is relieved.

The present embodiment adds the following technical features on the basis of embodiment 2:

the arm support 1 includes a soft pad (not shown) which is connected to the arm support 1 in a combined manner, and the soft pad is in contact with the arm of the operator. When in use, the soft cushion has good comfort.

The soft cushion is made of memory cotton or sponge.

Or, a soft sleeve (not shown in the figure) capable of wrapping the arm support bracket 1 is arranged, and the soft sleeve is sleeved with the arm support bracket 1. When in use, the soft sleeve is sleeved on the arm support 1.

The setting can be removed base 6, and base 6 sets up in the bottom of altitude mixture control structure, and base 6 and altitude mixture control structure fixed connection, the bottom of base 6 sets up universal wheel 61, and universal wheel 61 includes the braking structure. This arrangement allows the arm support structure to be moved into position.

Example 4

As shown in fig. 9, the arm support frame used when using the pipette in this embodiment includes an arm support frame, and is characterized in that the arm support frame includes an arm support base 1, an angle adjusting structure and a height adjusting structure, the angle adjusting structure is disposed at the bottom of the arm support base 1, the height adjusting structure is disposed at the bottom of the angle adjusting structure, the arm support base 1 is fixedly connected with the angle adjusting structure, and the height adjusting structure is fixedly connected with the angle adjusting structure; a cavity structure 2 is provided for accommodating the angle adjustment structure. The angle and the height of the arm supporting bracket 1 can be flexibly adjusted by the arrangement, so that the arm supporting bracket 1 can move along with the arm of an operator, the arm of the operator is well supported, and the fatigue of the operator is relieved.

The present embodiment adds the following technical features on the basis of embodiment 3:

a support 8 is provided for supporting the non-primary operating arm. The pipette is held to the arm of main operation, and instruments such as test tube are held to non-main operation arm, and support piece 8's setting makes both sides arm can both obtain supporting, makes two side arms all be in non-unsettled state, alleviates fatigue.

The support 8 is fixedly connected to the cavity structure 2 by means of fixing rods 84.

Example 5

As shown in fig. 10, the arm support frame used when using the pipette in this embodiment includes an arm support frame, and is characterized in that the arm support frame includes an arm support base 1, an angle adjusting structure and a height adjusting structure, the angle adjusting structure is disposed at the bottom of the arm support base 1, the height adjusting structure is disposed at the bottom of the angle adjusting structure, the arm support base 1 is fixedly connected with the angle adjusting structure, and the height adjusting structure is fixedly connected with the angle adjusting structure; a cavity structure 2 is provided for accommodating the angle adjustment structure. The angle and the height of the arm supporting bracket 1 can be flexibly adjusted by the arrangement, so that the arm supporting bracket 1 can move along with the arm of an operator, the arm of the operator is well supported, and the fatigue of the operator is relieved.

The present embodiment adds the following technical features on the basis of embodiment 2:

the arm support 1 comprises a soft pad, the soft pad is connected with the arm support 1 in a combined mode, and the soft pad is in contact with the arm of an operator. When in use, the soft cushion has good comfort.

The soft cushion is made of memory cotton or sponge.

Or a soft sleeve capable of wrapping the arm support bracket 1 is arranged, and the soft sleeve is sleeved with the arm support bracket 1. When in use, the soft sleeve is sleeved on the arm support 1.

The device is provided with a first clamping structure 7 used for fixing the arm supporting structure on the experiment table, and the first clamping structure 7 is fixedly connected with the height adjusting structure. When the clamping structure is used, the clamping structure 7 is fixed on a laboratory bench.

The first clamping structure 7 comprises a first clamping plate 71 and a second clamping plate 72, the first clamping plate 71 is fixedly connected with the bottom of the sleeve, the second clamping plate 72 is sleeved outside the sleeve, the clamping plates slide upwards or downwards along the direction of the sleeve, and the second clamping plate 72 comprises a screwing structure. When the clamping device is used, the first clamping plate 71 is tightly attached to the bottom surface of the experiment table, the second clamping plate 72 is tightly attached to the upper surface of the experiment table, and the second clamping plate 72 is fastened on the experiment table through a screwing structure.

The tightening structure is a tightening screw 74 with external threads, a matched threaded hole 73 is formed in the second clamping plate 72, and the tightening screw 74 is in threaded connection with the threaded rod. When the screw is used, the screw 74 is screwed with the screw hole 73.

Example 6

As shown in fig. 11, the arm support frame used when using the pipette in this embodiment includes an arm support frame, and is characterized in that the arm support frame includes an arm support base 1, an angle adjusting structure and a height adjusting structure, the angle adjusting structure is disposed at the bottom of the arm support base 1, the height adjusting structure is disposed at the bottom of the angle adjusting structure, the arm support base 1 is fixedly connected with the angle adjusting structure, and the height adjusting structure is fixedly connected with the angle adjusting structure; a cavity structure 2 is provided for accommodating the angle adjustment structure. The angle and the height of the arm supporting bracket 1 can be flexibly adjusted by the arrangement, so that the arm supporting bracket 1 can move along with the arm of an operator, the arm of the operator is well supported, and the fatigue of the operator is relieved.

The present embodiment adds the following technical features on the basis of embodiment 5:

a support 8 is provided for supporting the non-primary operating arm. The pipette is held to the arm of main operation, and instruments such as test tube are held to non-main operation arm, and support piece 8's setting makes both sides arm can both obtain supporting, makes two side arms all be in non-unsettled state, alleviates fatigue.

The support member 8 is connected with the experiment table in a combined manner.

The supporting member 8 includes an arm supporting bracket 1 and a telescopic plate 81, and the bottom of the arm supporting bracket 1 is fixedly connected with the telescopic plate 81. This arrangement allows the arm support 1 to be adjusted to the appropriate position by the expansion plate 81.

The retractable plate 81 includes an outer sleeve plate and a lifting plate, and the lifting plate is located inside the outer sleeve plate.

The setting is used for fixed support member 8's clamping structure 7 two, and clamping structure 7 two and laboratory bench combination are connected, and clamping structure 7 two includes fixed plate 82 and regulating plate 83, and fixed plate 82 and outer sleeve plate's bottom fixed connection, regulating plate 83 cup joint with outer sleeve plate, and regulating plate 83 upwards or the downward slip of outer sleeve plate edge, and regulating plate 83 includes locking structure. This arrangement allows the support 8 to be fixed to the laboratory bench.

The locking structure is a screw 74, a matched threaded hole 73 is formed in the adjusting plate 83, and the screw 74 is in threaded connection with the threaded hole 73. In use, the screw 74 is screwed into the threaded hole 73, thereby fixing the support 8 to the laboratory bench.

The above description of the embodiments is only intended to illustrate the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several modifications can be made to the present invention, and these modifications will fall within the protection scope of the claims of the present invention.

Claims (8)

1. An arm support frame used when a pipette is used comprises an arm support frame and is characterized in that the arm support frame comprises an arm support bracket, an angle adjusting structure and a height adjusting structure, wherein the angle adjusting structure is arranged at the bottom of the arm support bracket; a cavity structure for accommodating the angle adjusting structure is arranged; the angle adjusting structure comprises a base, a first adjusting arm, a second adjusting arm and an angle adjusting block, wherein the directions of the first adjusting arm and the second adjusting arm are mutually vertical, the first adjusting arm is rotationally connected with the base, and the second adjusting arm is rotationally connected with the base; the angle adjusting block is movably connected with the first adjusting arm and comprises an integrally connected extending shaft, the extending shaft penetrates through the first adjusting arm and the second adjusting arm, and the free end of the extending shaft is fixedly connected with the arm support; the height adjusting structure is an electronic telescopic rod, the electronic telescopic rod comprises a sleeve and a lifting rod, the lifting rod is located in the sleeve, and the electronic telescopic rod comprises a power supply structure and an on-off key.

2. The arm support frame when using the pipette as described in claim 1, wherein the arm support holder is configured as an arc with an upward opening, and the arc fits the arc of the human arm.

3. The arm support stand when using a pipette as defined in claim 2 wherein the center of the first adjustment arm includes a first window allowing the extension shaft to extend therethrough, the center of the second adjustment arm includes a second window allowing the extension shaft to extend therethrough, the first window having the same curvature as the first adjustment arm and the second window having the same curvature as the second adjustment arm, the extension shaft moving along the first window in a first direction and the extension shaft moving along the second window in a second direction, the first direction being perpendicular to the second direction.

4. The support frame for the arm when the pipette is used as recited in claim 3, wherein the first adjusting arm comprises a connecting structure movably connected to the angle adjusting block.

5. The arm support frame when using the pipette as defined in claim 4, wherein the connecting structure comprises a connecting rod and a connecting ball, the connecting rod is fixedly connected with the first connecting shaft, the connecting ball is rotatably connected with the connecting rod, the connecting ball rotates around the connecting rod, and the angle adjusting block is slidably connected with the connecting ball.

6. The arm support frame when using the pipette as claimed in any one of claims 1 to 5, wherein a movable base is provided, the base is provided at the bottom of the height adjusting structure, the base is fixedly connected with the height adjusting structure, the bottom of the base is provided with a universal wheel, and the universal wheel comprises a braking structure.

7. The arm support frame when using the pipette as defined in any one of claims 1 to 5, wherein a first holding structure is provided for fixing the arm support structure on the laboratory bench, the first holding structure being fixedly connected to the height adjusting structure.

8. The arm support when using a pipette as described in any of claims 1 to 5 wherein a support is provided for supporting the non-primary handling arm.

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