CN216798155U

CN216798155U - Operating table hand support frame

Info

Publication number: CN216798155U
Application number: CN202220091863.4U
Authority: CN
Inventors: 江华娟
Original assignee: Fengdu People's Hospital
Current assignee: Fengdu People's Hospital
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-06-24
Anticipated expiration: 2032-01-14

Abstract

The utility model discloses an operating table hand support frame which comprises a hand support plate, a fixing device arranged at the end part of the hand support plate and an adjusting device arranged on the back of the hand support plate and used for adjusting the horizontal rotation of the hand support plate; the fixing device comprises a fixing piece with a through groove and a locking mechanism arranged on the fixing piece; the hand supporting plate is arranged on the fixing part, and the cross rod on the bed edge of the operating table is embedded in the through groove of the fixing part and locked by the locking mechanism. The cross rod can be quickly locked in the through groove by the locking mechanism, the hand support frame can be quickly taken down from the cross rod, the cross rod can be integrally locked in the through groove by the through groove and the retracting mechanism, and the locking is more stable. The hand support frame for the operating table has a simple and stable structure, is convenient to use, and reduces the occurrence of medical accidents.

Description

Operating table hand support frame

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly relates to an operating table hand support frame.

Background

When the patient need do the operation, the patient lies in on the operating table, constantly twists the arm in order to prevent that the patient from painful, and in order that the patient needs urgent infusion or the treatment of injecing in the middle of the operation, just need fix the both hands of patient respectively on holding in the palm the hand rack to the doctor treats fast or prevents that the patient from twisting the arm and driving the health and remove and cause the operation failure. The utility model discloses a be CN205251940U among the prior art, a can put thing operation support hand frame is disclosed, this support hand frame passes through stationary dog A and stationary dog B and fixes whole support hand frame on the horizontal pole of operating table bed edge, wherein stationary dog B adopts the torsion of torsional spring to make stationary dog B and stationary dog A press from both sides tight horizontal pole, but the torsion of torsional spring is general limited, to the patient of different strength and receive amazing patient, shake off this support hand frame from the horizontal pole on bed edge very easily, the structure is stable inadequately, influence doctor's operation process, bring certain risk for medical process.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing an operating table hand support frame which is simple in structure, stable in fixation and capable of reducing medical accidents, aiming at overcoming the defects of the existing hand support frame.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

the operating table hand support frame is characterized by comprising a hand support plate, a fixing device arranged at the end part of the hand support plate and an adjusting device arranged on the back of the hand support plate for adjusting the horizontal rotation of the hand support plate; the fixing device comprises a fixing piece with a through groove and a locking mechanism arranged on the fixing piece; the hand supporting plate is arranged on the fixing part, and a cross rod on the bed edge of the operating table is embedded in a through groove of the fixing part and is locked by a locking mechanism;

the fixing piece comprises an upper groove arm, a lower groove arm and a side groove arm, the locking mechanism comprises a C-shaped reed arranged in the side groove arm, a propping rod penetrating and fixed in the middle of the C-shaped reed, an upper locking port structure arranged in the upper groove arm and a lower locking port structure arranged in the lower groove arm, the upper locking port structure and the lower locking port structure are symmetrically arranged and are respectively arranged at two ends of the C-shaped reed, the upper locking port structure comprises an upper locking tongue, the lower locking port structure comprises a lower locking tongue, the upper locking tongue is arranged at the end part of the free end of the upper groove arm, the lower locking tongue is arranged at the end part of the free end of the lower groove arm, and a cross rod of the bed edge is limited in the through groove through the upper locking tongue and the lower locking tongue;

the C-shaped spring plate, the upper locking port structure and the lower locking port structure are arranged in the accommodating cavity, and the abutting rod penetrates through the side arm of the groove and is connected with the C-shaped spring plate; through holes through which the two ends of the C-shaped reeds penetrate are respectively arranged in the accommodating cavities of the side arms of the grooves; the pushing and pulling abutting rod drives the C-shaped reed to reciprocate, the end part of the C-shaped reed abuts against the through hole, the C-shaped reed drives the end parts of the two ends of the C-shaped reed to reciprocate in a reverse direction with the middle part of the C-shaped reed, and therefore the spring bolt is driven to lock or open the notch of the through hole; when supporting tight pole and drawing outside leading to the groove, drive spring bolt and lower spring bolt and will lead to the groove notch and open to lead to the horizontal pole embedding on the bed edge and lead to the groove, promote again and support tight pole, go up spring bolt and spring bolt down and pop out, inject the horizontal pole in leading to the inslot, and support tight pole and support tightly on the horizontal pole, thereby will hold in the palm the hand rack and fix on the bed edge of operating table.

The cross rod can be embedded into the through groove through the fixing piece with the through groove, the upper lock tongue and the lower lock tongue are arranged on the upper arm and the lower arm of the groove respectively, and the upper lock tongue and the lower lock tongue are arranged on the inner wall of the through groove, so that the effect of blocking and limiting the cross rod embedded into the through groove can be achieved. During the use, will support the outside pulling of tight pole earlier to the middle part that drives the C shape reed is bloated to pulling one side, and the both ends of C shape reed drive the spring bolt and the lower spring bolt is received back respectively in groove upper arm and groove lower arm, guarantees to lead to the inslot and vacate the space and hold the horizontal pole, then promotes to support the middle part that tight pole drove the C shape reed and to bulge to leading to the inslot, and the both ends of C shape reed drive spring bolt and lower spring bolt stretch out and block the export that the horizontal pole breaks away from logical groove, and support the tight pole simultaneously and support tightly on the horizontal pole, with fixing device's locking firmly on the horizontal pole. The C-shaped reed can be formed by reeds with different elastic forces according to specific conditions, and the abutting rod can be firmly abutted against the cross rod, so that the cross rod is locked among the upper spring bolt, the lower spring bolt and the abutting rod. Through using support tight pole, C shape reed, last notch of a lock structure and lower institute's structure, can put into logical groove and can take off fast with the horizontal pole and hold in the palm the hand rest, make simultaneously that hold in the palm the hand rest more firm fix on the horizontal pole.

Preferably, the upper locking notch structure further comprises an upper push-pull rod, an upper wedge block matched with the upper locking tongue and an upper spring matched with the upper locking tongue, and the lower locking notch structure further comprises a lower push-pull rod, a lower wedge block matched with the lower locking tongue and a lower spring matched with the lower locking tongue; two end parts of the C-shaped reed are respectively hinged with the end part of the upper push-pull rod and the end part of the lower push-pull rod, the upper wedge block is fixed at the other end of the upper push-pull rod, and the lower wedge block is fixed at the other end of the lower push-pull rod; an upper vertical groove with a notch facing the through groove is arranged at the free end of the upper arm of the groove, a lower vertical groove with a notch facing the through groove is arranged at the free end of the lower arm of the groove, the upper vertical groove, the lower vertical groove and the accommodating cavity are communicated, the upper spring is fixedly arranged at the bottom of the upper vertical groove and is fixedly connected with the upper locking tongue, and the lower spring is fixedly arranged at the bottom of the lower vertical groove and is fixedly connected with the lower locking tongue; an upper wedge groove matched with the upper wedge block is formed in the upper lock tongue, a lower wedge groove matched with the lower wedge block is formed in the lower lock tongue, the wedge groove in the lock tongue is extruded through the wedge block so that the lock tongue is retracted into the vertical groove, the wedge block is separated from the wedge groove, and the lock tongue extends out of the vertical groove under the action of the spring; the C-shaped reed reciprocates to control the extrusion and separation of the wedge block and the lock tongue.

The C-shaped reed drives the push-pull rod to reciprocate, and drives the push-pull rod to reciprocate, so as to drive the wedge block and the wedge groove to be mutually inserted and separated, and further drive the lock tongue to extend out of or retract into the groove wall. By using a whole set of linkage structure, the abutting rod and the lock tongue can be in linkage interaction, so that the cross rod is locked or the hand support frame is taken down at the same time, and the structure is simple and the use is convenient.

Preferably, the end part of the fastening rod is further provided with a pull ring, and the pull ring is arranged outside the fixing piece. The abutting rod is convenient to control through the pull ring, and the use is convenient.

Preferably, the through hole defining the C-shaped spring is formed by two clamping plates arranged in the receiving cavity. Through using two splint in every through-hole department, when C shape reed reciprocating motion, different splint play the effect of supporting the fulcrum to the tip of control C shape reed is reverse rather than middle part direction of motion, thereby makes the spring bolt and supports the reasonable linkage of tight pole.

Preferably, the connecting piece is provided with a shaft sleeve, the bottom of one end of the hand supporting plate is fixedly provided with a hinged shaft, and the fixing piece is hinged with the hand supporting plate through the shaft sleeve and the hinged shaft; the adjusting device comprises a fixing part A, a fixing part B, a locking rod, a return spring and a half gear; the half gear is arranged on the shaft sleeve, the fixing part A and the fixing part B are arranged on the same axial line along the length direction of the hand supporting plate, the locking rod sequentially penetrates through guide holes of the fixing part A and the fixing part B, one end of the locking rod is meshed with different tooth sockets of the half gear to lock the relative position of the hand supporting plate, the other end of the locking rod is a pulling part for pulling the locking rod, the fixing part A is arranged on one side of the pulling part, a limiting ring is arranged between the fixing part A and the fixing part B, and the reset spring is arranged between the fixing part A and the limiting ring; the locking part is separated from the half gear by pulling the pulling part, the position of the hand supporting plate is adjusted, and the locking rod is meshed with the half gear under the action of the reset spring so as to horizontally adjust the relative position of the hand supporting plate.

The operating table hand support frame is simple and stable in structure and convenient to use, and medical accidents are reduced.

Drawings

The contents of the description and the references in the drawings are briefly described as follows:

FIG. 1 is a view showing a state in which a cross bar is inserted into a through groove according to the embodiment;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a state diagram of the cross bar of the embodiment locked in the through slot;

FIG. 4 is an enlarged view at B in FIG. 3;

FIG. 5 is a back view of an embodiment hand rest;

in the figure: 1 is a hand supporting plate; 2 is a through groove; 3 is a trough upper arm; 4 is a slot lower arm; 5 is a slot side arm; 6 is a C-shaped reed; 7 is a supporting rod; 8 is an upper lock tongue; 9 is a lower lock tongue; 10 is a containing cavity; 11 is an upper push-pull rod; 12 is an upper wedge block; 13 is an upper spring; 14 is a push-down pull rod; 15 is a lower wedge block; 16 is a lower spring; 17 is an upper vertical groove; 18 is a lower vertical groove; 19 is an upper wedge groove; 20 is a lower wedge groove; 21 is a pull ring; 22 is a splint; 23 is a shaft sleeve; 24 is a hinged shaft; 25 is a fixed part A; 26 is a fixed part B; 27 is a locking lever; 28 is a return spring; 29 is a half gear; 30 is a pulling and holding part; 31 is a limit ring; and 32 is a cross bar.

Detailed Description

The utility model will now be further elucidated with reference to the following non-limiting embodiment in which the drawing is combined. It should be understood that these descriptions are only illustrative and are not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

Examples

As shown in fig. 1, 2, 3, 4 and 5, the operating table hand support frame comprises a hand support plate 1, a fixing device arranged at the end part of the hand support plate 1 and an adjusting device arranged at the back of the hand support plate 1 for adjusting the horizontal rotation of the hand support plate 1; the fixing device comprises a fixing piece with a through groove 2 and a locking mechanism arranged on the fixing piece; the hand supporting plate 1 is arranged on the fixed part, and a cross rod 32 on the bed edge of the operating table is embedded in the through groove 2 of the fixed part and locked by a locking mechanism;

the fixing piece comprises an upper groove arm 3, a lower groove arm 4 and a side groove arm 5, the locking mechanism comprises a C-shaped spring 6 arranged in the side groove arm 5, a butting rod 7 penetrating and fixed in the middle of the C-shaped spring 6, an upper lock opening structure arranged in the upper groove arm 3 and a lower lock opening structure arranged in the lower groove arm 4, the upper lock opening structure and the lower lock opening structure are symmetrically arranged and respectively arranged at two ends of the C-shaped spring 6, the upper lock opening structure comprises an upper lock tongue 8, the upper locking structure comprises an upper push-pull rod 11, an upper wedge block 12 matched with the upper locking tongue 8 and an upper spring 13 matched with the upper locking tongue 8, the lower locking structure comprises a lower locking tongue 9, a lower push-pull rod 14, a lower wedge block 15 matched with the lower locking tongue 9 and a lower spring 16 matched with the lower locking tongue 9, the upper locking tongue 8 is arranged at the end part of the free end of the upper arm 3 of the groove, the lower locking tongue 9 is arranged at the end part of the free end of the lower arm 4 of the groove, and a cross rod 32 of the bed edge is limited in the through groove 2 through the upper locking tongue 8 and the lower locking tongue 9; two end parts of the C-shaped reed 6 are respectively hinged with the end part of the upper push-pull rod 11 and the end part of the lower push-pull rod 14, an upper wedge block 12 is fixed at the other end of the upper push-pull rod 11, and a lower wedge block 15 is fixed at the other end of the lower push-pull rod 14; an upper vertical groove 17 with a notch facing the through groove 2 is arranged at the free end of the groove upper arm 3, a lower vertical groove 18 with a notch facing the through groove 2 is arranged at the free end of the groove lower arm 4, the upper vertical groove 17, the lower vertical groove 18 and the accommodating cavity 10 are communicated, an upper spring 13 is fixedly arranged at the bottom of the upper vertical groove 17 and is fixedly connected with the upper lock tongue 8, and a lower spring 16 is fixedly arranged at the bottom of the lower vertical groove 18 and is fixedly connected with the lower lock tongue 9; a pull ring 21 is arranged at the end part of the fastening rod 7, and the pull ring 21 is arranged outside the fixing piece.

The groove side arm 5, the groove upper arm 3 and the groove lower arm 4 are provided with communicated accommodating cavities 10, the C-shaped spring leaf 6, the upper locking port structure and the lower locking port structure are arranged in the accommodating cavities 10, and the abutting rod 7 penetrates through the groove side arm 5 to be connected with the C-shaped spring leaf 6; through holes through which the two ends of the C-shaped reeds 6 penetrate are respectively arranged in the accommodating cavities 10 of the groove side arms 5; the through hole for limiting the C-shaped spring plate 6 is formed by two clamping plates 22 arranged in the accommodating cavity 10;

the abutting rod 7 is pushed and pulled to drive the C-shaped reed 6 to reciprocate, the end part of the C-shaped reed 6 abuts in the through hole, the C-shaped reed 6 drives the end parts of the two ends of the C-shaped reed to reciprocate in a reverse direction with the middle part of the C-shaped reed 6, and therefore the spring bolt is driven to lock or open the notch of the through groove 2; when supporting tight pole 7 and pulling outside logical groove 2, drive go up spring bolt 8 and lower spring bolt 9 and open logical groove 2 notch to with the horizontal pole 32 embedding logical groove 2 on the bed edge, promote again and support tight pole 7, go up spring bolt 8 and lower spring bolt 9 and pop out, inject horizontal pole 32 in logical groove 2, and support tight pole 7 and support tightly on horizontal pole 32, thereby will hold in the palm the hand rack and fix on the bed edge of operating table.

As shown in fig. 5, a shaft sleeve 23 is arranged on the connecting piece, a hinge shaft 24 is fixedly arranged at the bottom of one end of the hand supporting plate 1, and the fixing piece is hinged with the hand supporting plate 1 through the shaft sleeve 23 and the hinge shaft 24; the adjusting device comprises a fixing part A25, a fixing part B26, a locking rod 27, a return spring 28 and a half gear 29; the half gear 29 is arranged on the shaft sleeve 23, the fixing part A25 and the fixing part B26 are arranged on the same axis along the length direction of the hand supporting plate 1, the locking rod 27 sequentially passes through the guide holes of the fixing part A25 and the fixing part B26, one end of the locking rod 27 is meshed with different tooth grooves of the half gear 29 to lock the relative position of the hand supporting plate 1, the other end of the locking rod 27 is a pulling part 30 for pulling the locking rod 27, the fixing part A25 is arranged on one side of the pulling part 30, a limiting ring 31 is arranged between the fixing part A25 and the fixing part B26, and the return spring 28 is arranged between the fixing part A25 and the limiting ring 31; the locking piece is separated from the half gear 29 by pulling the pulling part 30, the position of the hand supporting plate 1 is adjusted, and the locking rod 27 is meshed with the half gear 29 under the action of the return spring 28, so that the relative position of the hand supporting plate 1 is horizontally adjusted.

As shown in fig. 1 and 2, when in use, the tightening rod 7 is pulled by the pull ring 21 to move towards the outside of the fixing member, the tightening rod 7 drives the middle of the C-shaped spring 6 to bulge towards the outside, under the supporting action of the clamp plate 22, the two ends of the C-shaped spring 6 respectively push the upper push-pull rod 11 and the lower push-pull rod 14 to move towards the opening of the through groove 2, so as to respectively push the upper wedge 12 and the lower wedge 15 to respectively extrude with the upper wedge groove 19 and the lower wedge groove 20, so as to respectively drive the upper lock tongue 8 and the lower tongue to enter the upper vertical groove 17 and the lower vertical groove 18, as shown in fig. 2, the space in the through groove 2 is set out, the through groove 2 and the cross bar 32 are mutually embedded, so that the cross bar 32 is tightened against the tightening rod 7. As shown in fig. 3 and 4, the tightening rod 7 is pushed to move towards the direction of the through groove 2, the tightening rod 7 pushes the cross rod 32 to move towards the direction of the notch of the through groove 2, and simultaneously, the C-shaped spring 6 drives the two ends of the C-shaped spring to pull the upper push-pull rod 11 and the lower push-pull rod 14 to move towards the groove side wall, so that the upper wedge 12 and the upper wedge 19 are gradually separated, the lower wedge 15 and the lower wedge 20 are gradually separated, and the upper lock tongue 8 and the lower lock tongue 9 respectively extend out of the upper groove arm 3 and the lower groove arm 4 under the action of the upper spring 13 and the lower spring 16 to block the notch. Because the extrusion of the wedge groove and the wedge block is completed through the inclined plane, the spring bolt is gradually ejected out in the process that the wedge block and the wedge groove are gradually separated. When the cross bar 32 abuts against the upper latch tongue 8 and the lower latch tongue 9, the abutting rod 7 abuts against the other side of the cross bar 32 under the action of the C-shaped spring leaf 6, so that the cross bar 32 is locked in the through groove 2. When the cross rod 32 needs to be taken out, as shown in fig. 1 and 2, the pull belt is directly pulled to move the abutting rod 7 to be far away from the cross rod 32, and meanwhile, the lock tongue is driven to be retracted, so that the hand support frame can be taken out. As shown in fig. 5, when the hand rest 1 needs to be rotated to adapt to the position of the human body, the pulling portion 30 can be pulled to separate the locking rod 27 from the half gear 29, the hand rest 1 is hinged to the fixing member through the hinge shaft 24, the hand rest 1 can be rotated, the pulling portion 30 is released, and one end of the locking rod 27 is clamped between the gears of the half gear 29 under the action of the return spring 28, so that the hand rest 1 can be rotated. The hand support frame of this embodiment, simple structure is stable, and convenient to use has reduced the operation risk.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, when used in the orientation or positional relationship indicated in the figures, are used merely for convenience in describing the utility model and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered as limiting. Furthermore, the appearances of the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Claims

1. The operating table hand support frame is characterized by comprising a hand support plate (1), a fixing device arranged at the end part of the hand support plate (1) and an adjusting device arranged on the back surface of the hand support plate (1) and used for adjusting the horizontal rotation of the hand support plate (1); the fixing device comprises a fixing piece with a through groove (2) and a locking mechanism arranged on the fixing piece; the hand supporting plate (1) is arranged on the fixing part, and a cross rod (32) on the bed edge of the operating table is embedded in the through groove (2) of the fixing part and locked by a locking mechanism;

the fixing piece comprises a groove upper arm (3), a groove lower arm (4) and a groove side arm (5), the locking mechanism comprises a C-shaped spring leaf (6) arranged in the side arm (5) of the groove, a propping rod (7) which is arranged in the middle of the C-shaped spring leaf (6) in a penetrating way and fixed, an upper locking structure arranged in the upper arm (3) of the groove and a lower locking structure arranged in the lower arm (4) of the groove, the upper lock opening structure and the lower lock opening structure are symmetrically arranged and are respectively arranged at the two ends of the C-shaped reed (6), the upper lock opening structure comprises an upper lock tongue (8), the lower lock opening structure comprises a lower lock tongue (9), the upper lock tongue (8) is arranged at the end part of the free end of the upper groove arm (3), the lower lock tongue (9) is arranged at the end part of the free end of the lower groove arm (4), the cross bar (32) of the bed edge is limited in the through groove (2) through the upper lock tongue (8) and the lower lock tongue (9);

the groove side arm (5), the groove upper arm (3) and the groove lower arm (4) are provided with communicated accommodating cavities (10), the C-shaped spring plate (6), the upper locking structure and the lower locking structure are arranged in the accommodating cavities (10), and the abutting rod (7) penetrates through the groove side arm (5) to be connected with the C-shaped spring plate (6); through holes through which the two ends of the C-shaped reeds (6) penetrate are respectively arranged in the accommodating cavities (10) of the groove side arms (5).

2. An operating table hand rest according to claim 1, characterized in that the upper locking notch structure further comprises an upper push-pull rod (11), an upper wedge (12) cooperating with the upper locking tongue (8) and an upper spring (13) cooperating with the upper locking tongue (8), and the lower locking notch structure further comprises a lower push-pull rod (14), a lower wedge (15) cooperating with the lower locking tongue (9) and a lower spring (16) cooperating with the lower locking tongue (9); two end parts of the C-shaped reed (6) are respectively hinged with the end part of the upper push-pull rod (11) and the end part of the lower push-pull rod (14), the upper wedge block (12) is fixed at the other end of the upper push-pull rod (11), and the lower wedge block (15) is fixed at the other end of the lower push-pull rod (14); an upper vertical groove (17) with a notch facing the through groove (2) is formed in the free end of the upper groove arm (3), a lower vertical groove (18) with a notch facing the through groove (2) is formed in the free end of the lower groove arm (4), the upper vertical groove (17), the lower vertical groove (18) and the accommodating cavity (10) are communicated, the upper spring (13) is fixedly arranged at the bottom of the upper vertical groove (17) and is fixedly connected with the upper lock tongue (8), and the lower spring (16) is fixedly arranged at the bottom of the lower vertical groove (18) and is fixedly connected with the lower lock tongue (9); an upper wedge groove (19) matched with the upper wedge block (12) is formed in the upper bolt (8), a lower wedge groove (20) matched with the lower wedge block (15) is formed in the lower bolt (9), the wedge groove in the bolt is extruded by the wedge block, so that the bolt is retracted into the vertical groove, the wedge block is separated from the wedge groove, and the bolt (9) extends out of the vertical groove under the action of a spring; the C-shaped reed (6) reciprocates to control the extrusion and separation of the wedge block and the bolt.

3. An operating table hand rest according to claim 1 or 2, characterised in that a pull ring (21) is also provided at the end of the abutment lever (7), said pull ring (21) being arranged outside the fixing element.

4. Operating table hand rest according to claim 1 or 2, characterised in that the through-hole defining the C-shaped spring (6) is formed by two clamping plates (22) arranged in the receiving chamber (10).

5. An operating table hand rest according to claim 1 or 2, characterized in that a sleeve (23) is provided on the connecting piece, an articulated shaft (24) is fixedly provided at the bottom of one end of the hand rest plate (1), and the fixing piece is articulated with the hand rest plate (1) by the sleeve (23) and the articulated shaft (24); the adjusting device comprises a fixing part A (25), a fixing part B (26), a locking rod (27), a return spring (28) and a half gear (29); the half gear (29) is arranged on the shaft sleeve (23), the fixing portion A (25) and the fixing portion B (26) are arranged on the same axis along the length direction of the hand supporting plate (1), the locking rod (27) sequentially penetrates through guide holes of the fixing portion A (25) and the fixing portion B (26), one end of the locking rod (27) is meshed with different tooth grooves of the half gear (29) to lock the opposite position of the hand supporting plate (1), the other end of the locking rod is a pulling portion (30) for pulling the locking rod (27), the fixing portion A (25) is arranged on one side of the pulling portion (30), a limiting ring (31) is arranged between the fixing portion A (25) and the fixing portion B (26), and the reset spring (28) is arranged between the fixing portion A (25) and the limiting ring (31); the pulling and holding part (30) is pulled, the locking piece is separated from the half gear (29), the position of the hand supporting plate (1) is adjusted, and the locking rod (27) is meshed with the half gear (29) under the action of the reset spring (28), so that the relative position of the hand supporting plate (1) is horizontally adjusted.