Operating bed leg plate rotation locking mechanism and operating bed

Abstract

The utility model belongs to the technical field of medical equipment, and particularly relates to an operating bed leg plate rotating and locking mechanism and an operating bed. The rotary locking mechanism comprises a connector and an insertion shaft seat; a counter bore is formed in the inserting shaft seat, and a lower plane tooth and an upper plane tooth are sequentially arranged in the counter bore from bottom to top; belleville springs are arranged between the upper plane teeth and the lower plane teeth. The connector comprises an upper connecting lug and a lower connecting lug, and the upper connecting lug and the lower connecting lug clamp the inserting shaft seat in the middle; through holes are formed in the centers of the upper connecting lug, the upper plane tooth, the lower plane tooth, the shaft inserting base and the lower connecting lug, a rotating shaft is arranged in the through holes, the upper end of the rotating shaft is fixedly connected with the upper connecting lug through a rotation stopping cover, threads are arranged at the lower end of the rotating shaft, and a knob is arranged at the lower end of the rotating shaft and rotates to drive the rotating shaft to move up and down. Therefore, locking and loosening of the upper plane teeth and the lower plane teeth are achieved. According to the structure, the knob labor-saving mechanism is arranged and matched with gear meshing, and complete locking can be achieved with small force.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical equipment, and particularly relates to a surgical bed leg plate rotating locking mechanism and surgical bed. BACKGROUND

[0002] Many body positions need leg plate rotation during operation, and fixing the patient's leg behind the leg plate is very important for operation. Therefore, a simple structure and convenient operation rotating locking device is needed at the leg plate rotating position. UTILITY MODEL CONTENTS

[0003] The utility model discloses a surgical bed leg plate rotating locking mechanism which overcomes the defects of the prior art. The structure is provided with a knob labor-saving mechanism, and the knob labor-saving mechanism is matched with a gear to be engaged, so that complete locking can be achieved by a small force.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] A surgical bed leg plate rotating locking mechanism, the rotating locking mechanism comprises a connecting head and a plug shaft seat;

[0006] A counterbore is arranged on the plug shaft seat, and a lower flat tooth and an upper flat tooth are sequentially arranged in the counterbore from bottom to top; a butterfly spring is arranged between the upper flat tooth and the lower flat tooth; the lower flat tooth is fixedly connected with the bottom surface of the counterbore through a positioning pin;

[0007] The connecting head comprises an upper connecting lug and a lower connecting lug, and the plug shaft seat is clamped in the middle by the upper connecting lug and the lower connecting lug;

[0008] The upper connecting lug is provided with a counterbore in the upward direction, a through hole is arranged in the center of the counterbore, and guide column holes are arranged on both sides of the through hole; the upper flat tooth is fixedly connected with the upper connecting lug through the guide column inserted into the guide column hole;

[0009] Through holes are arranged in the centers of the upper connecting lug, the upper flat tooth, the lower flat tooth, the plug shaft seat and the lower connecting lug, a rotating shaft is arranged in the through hole, the upper end of the rotating shaft is fixedly connected with the upper connecting lug through a rotation-stopping cover, and the lower end of the rotating shaft is provided with a screw thread and a knob; the knob is rotated to drive the rotating shaft to move up and down, so that the locking and loosening of the upper flat tooth and the lower flat tooth are realized.

[0010] Preferably, the connecting head is fixedly connected with a leg plate frame.

[0011] Preferably, annular gaskets are arranged on the contact surfaces of the upper connecting lug and the plug shaft seat and the contact surfaces of the lower connecting lug and the plug shaft seat.

[0012] Preferably, the annular gaskets are made of brass.

[0013] Preferably, the axle seat is further provided with an axle and a rotation-stopping pin for auxiliary connection with the frame of the operating bed.

[0014] The utility model further provides a kind of operating bed, and the operating bed includes the operating bed leg plate rotating locking mechanism described above.

[0015] Compared with prior art, the utility model has the following remarkable technical effects:

[0016] The locking mode of the utility model is knob operation, realizes the amplification of force, and smaller force can realize locking, and it is gear engagement, firm and stable after locking. Two plane gears are pried open by disc spring, and only smaller force is needed when loosening knob, can ensure that two plane gears are completely separated, and there is no phenomenon of colliding gear when rotating. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structure diagram of the leg plate rotating locking mechanism of the utility model;

[0018] Figure 2 It is Figure 1 the sectional view of

[0019] Figure 3 It is Figure 2 the local enlarged view of

[0020] Figure 4 It is the structure diagram of plane gear;

[0021] Reference signs: 1, leg plate frame;2, axle seat;3, axle;4, rotation-stopping pin;5, knob;6, guide column;7, rotating shaft;8, annular gasket;9, upper plane gear;10, lower plane gear;11, disc spring;12, positioning pin;13, connecting head;14, rotation-stopping cover;15, screw thread;16, upper connecting lug;17, lower connecting lug. DETAILED DESCRIPTION

[0022] The technical scheme of the utility model will be described in detail below in combination with drawings and embodiments.

[0023] Embodiment 1

[0024] As Figures 2-3 shown, a kind of operating bed leg plate rotating locking mechanism, the rotating locking mechanism includes connecting head 13 and axle seat 2;

[0025] Sunk hole is provided on the axle seat 2, and lower plane gear 10 and upper plane gear 9 are sequentially arranged from below to above in sunk hole;Butterfly spring 11 is arranged between the upper plane gear 9 and the lower plane gear 10;The lower plane gear 10 is fixedly connected with the bottom surface of sunk hole by positioning pin 12;The structure of upper plane gear and lower plane gear is as shown in Figure 4As shown, the structures of the two are same, oppositely arranged, and a butterfly spring can be arranged in the middle.

[0026] The connecting head 13 comprises an upper connecting lug 16 and a lower connecting lug 17, which clamp the plug shaft seat 2 in the middle;

[0027] The upper connecting lug 16 is provided with a counterbore upwardly, a through hole is arranged in the center of the counterbore, and guide column holes are arranged on both sides of the through hole; the upper flat tooth 9 is fixedly connected with the upper connecting lug 16 through the guide column; and the lower connecting lug 17 is provided with the knob 5 below.

[0028] The center of the upper connecting lug 16, the upper flat tooth 9, the lower flat tooth 10, the plug shaft seat 2 and the lower connecting lug 17 is provided with a through hole, and the rotating shaft 7 is arranged in the through hole; the rotating shaft 7 is fixedly connected with the upper connecting lug 16 through the rotation stopping cover 14 at the upper end of the rotating shaft 7; the screw thread 15 is arranged at the lower end of the rotating shaft 7 and the knob 5 is arranged; the rotation of the knob 5 drives the rotating shaft 7 to move up and down, and then the locking and loosening of the upper flat tooth 9 and the lower flat tooth 10 are realized.

[0029] As shown in the figure, Figure 1 The connecting head 13 is fixedly connected with the leg plate frame 1.

[0030] The contact surface of the upper connecting lug 16 and the plug shaft seat 2 and the contact surface of the lower connecting lug 17 and the plug shaft seat 2 are provided with annular gaskets. Preferably, the annular gaskets are made of brass.

[0031] As shown in the figure, Figure 1 The utility model mainly comprises a leg plate frame 1, a plug shaft seat 2 and a knob 5. The plug shaft seat 2 is further provided with a plug shaft 3 and a rotation stopping pin 4 for auxiliary connection with the frame of the operating bed, that is, the plug shaft 3 is inserted into the corresponding plug shaft hole on the frame, and the rotation stopping pin 4 prevents the rotation between the plug shaft 3 and the frame.

[0032] As shown in the figure, Figures 1-3 The leg plate frame 1 and the plug shaft seat 2 are connected through the rotating shaft 7 and the knob 5, and the contact surface position of the leg plate frame 1 and the plug shaft seat 2 is provided with a brass annular gasket 8, which has good wear resistance and self-lubricating property; the annular gasket 8 is placed in the groove of the plug shaft seat 2, separates the plug shaft seat 2 from the upper and lower connecting lugs 16 and 17, and is rubbed with the upper and lower connecting lugs during rotation; the brass has low friction coefficient, and the rotation is smooth and convenient. The plug shaft seat 2 has a pair of flat gears, the gears are separated by a disc spring in the middle, the upper flat gear 9 is connected with the connecting head 13 through the guide column 6, the lower flat gear 10 is connected with the plug shaft seat 2 through the positioning pin 12, and the bottom end of the rotating shaft 7 has a screw thread 15. By rotating the knob 5, the rotating shaft 7 drives the upper flat gear 9 to move downward, the two flat gears are engaged to realize locking, and the leg plate frame 1 cannot be rotated; by rotating the knob 5 in the other direction, the disc spring 11 assists in separating the two flat gears, and the leg plate frame 1 can be rotated in the plane.

[0033] Embodiment 2

[0034] A surgical bed adopts several surgical bed leg plate rotating locking mechanisms of embodiment 1. It can be arranged on both sides or one side.

[0035] The contents not described in detail in the utility model can adopt the conventional technical knowledge in the field.

[0036] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the utility model and are not limited. Although the utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that the technical solutions of the utility model can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the utility model, and they should be covered in the scope of the claims of the utility model.

Claims

1. A surgical bed legboard rotation locking mechanism, characterized in that, The rotating locking mechanism comprises a connecting head and a plug shaft seat; The plug shaft seat is provided with a counterbore, and the counterbore is sequentially provided with a lower flat tooth and an upper flat tooth from bottom to top; the butterfly spring is arranged between the upper flat tooth and the lower flat tooth; the lower flat tooth is fixedly connected with the bottom surface of the counterbore through a positioning pin; The connecting head comprises an upper connecting lug and a lower connecting lug, and the plug shaft seat is clamped in the middle of the upper connecting lug and the lower connecting lug; The upper connecting lug is provided with a counterbore in the upward direction, the center of the counterbore is provided with a through hole, and the two sides of the through hole are provided with guide column holes; the upper flat tooth is fixedly connected with the upper connecting lug through the guide column inserted into the guide column hole; The center of the upper connecting lug, the upper flat tooth, the lower flat tooth, the plug shaft seat and the lower connecting lug are provided with through holes, the through holes are provided with rotating shafts, the upper end of the rotating shaft is fixedly connected with the upper connecting lug through a rotation stopping cover, the lower end of the rotating shaft is provided with a screw thread and a knob, the knob is rotated to drive the rotating shaft to move up and down, and then the locking and loosening of the upper flat tooth and the lower flat tooth are realized.

2. The leg plate rotating and locking mechanism of the operating table according to claim 1, wherein, The connecting head is fixedly connected with the leg plate frame.

3. The leg plate rotating and locking mechanism of the operating table according to claim 1, wherein, The contact surface of the upper connecting lug and the plug shaft seat and the contact surface of the lower connecting lug and the plug shaft seat are provided with annular gaskets.

4. The leg plate rotating and locking mechanism of claim 3, wherein, The annular gaskets are made of brass.

5. An operating bed, characterized in that The surgical bed comprises the surgical bed leg plate rotating locking mechanism of any one of claims 1-4.

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