Head fixing device

Abstract

The utility model discloses a head fixing device, which belongs to the technical field of head fixing and comprises a base plate, rotating shafts are rotatably mounted on the left side surface and the right side surface of the inner wall of the base plate, a bidirectional lead screw is fixedly mounted between the two rotating shafts, a knob is fixedly mounted at the end part of one rotating shaft, and the knob is fixedly mounted at the end part of the other rotating shaft. Movable plates are installed on the outer surfaces of two sections of threads of the bidirectional lead screw in a threaded mode, connecting plates are fixedly installed at the upper ends and the lower ends of the movable plates, and the same plate frame is fixedly installed between the two connecting plates on the same side; the two-way lead screw is arranged to be matched with the moving plate, the connecting plate and the plate frames for use, the plate frames on the two sides synchronously and relatively move when the two-way lead screw rotates, two-side fixing and clamping of the head are achieved, fixing operation is convenient, fixing can be achieved through one-time rotation, and the operation convenience is improved; and the distance between the two head fixing plates on the plate frame can be adaptively adjusted, so that the device is suitable for fixing and clamping heads of different sizes, and the universality is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of head fixing, and in particular relates to a head fixing device. Background Art

[0002] In the medical industry, the head is the top priority of physical examinations, especially in ENT. All examinations in ENT are closely related to the brain. Therefore, the stability of the head position during the examination is the key to the smooth operation of the inspection.

[0003] A Chinese patent (publication number: CN204106426U) provides a head fixer, including a base plate, with transverse slides and longitudinal slides symmetrically arranged on both sides of the base plate, a transverse slide groove is provided on the base plate, a protrusion is provided at the bottom of the transverse slide groove, the protrusion matches the transverse slide groove, a longitudinal slide groove is provided on the inner edge of the transverse slide groove, a slider matching the longitudinal slide groove is provided at the bottom of the longitudinal slide groove, the transverse slide groove is driven to slide by a driving cylinder, a pressure sensor is provided on the inner side of the longitudinal slide groove, the pressure sensor is connected to the driving cylinder controller, a locking mechanism is provided between the longitudinal slide groove and the transverse slide groove, the human head is located on the base plate, and the transverse slides on both sides slide inwardly under the action of the driving cylinder, when the pressure sensor on the inner side of the longitudinal slide groove detects that the pressure between the longitudinal slide groove and the human head reaches a set value, the driving cylinder stops, and the position between the longitudinal slide groove and the transverse slide groove is adjusted at this time, and the adjustment is flexible and convenient.

[0004] However, in actual use, it is necessary to operate the cylinders on both sides twice to fix the head. The front and back operations of the cylinders on both sides will inevitably result in differences in operating methods, so there will be differences in the range of motion on both sides. At the same time, the angle of the head cannot be adjusted after the head is fixed, and the pitch angle of the head needs to be adjusted during ENT testing, so the applicability is low. Utility Model Content

[0005] The purpose of the utility model is to provide a head fixing device to solve the problem proposed in the above-mentioned background technology that in actual use, the cylinders on both sides need to be operated twice to fix the head, and the front and back operations of the cylinders on both sides will inevitably result in differences in operation methods, so there will be differences in the movement amplitudes on both sides. At the same time, after the head is fixed, the angle of the head cannot be adjusted, and the pitch angle of the head needs to be adjusted during the ENT examination process, which results in low applicability.

[0006] The cam face has two camshafts, each of which is provided with a rotation axis, and the cam face has two camshafts, each of which is provided with a rotation axis.

[0007] The above scheme is adopted, by setting a two-way screw to be used in conjunction with the moving plate, the connecting plate and the plate frame, the plate frames on both sides move synchronously relative to each other when the two-way screw rotates, so that the double-sided fixation and clamping of the head is realized, the fixing operation is convenient, and the fixation can be achieved with one rotation, which improves the convenience of operation, and the distance between the two head fixing plates on the plate frame can be adaptively adjusted, which is suitable for the fixation and clamping of heads of different sizes, thereby improving universality, and by setting a rotating sleeve and a fixed sleeve to be used in conjunction with a locking rod, the rotating sleeve and the fixed sleeve are used to adjust the angle by rotating the pin shaft, and the locking rod is locked in conjunction with a spring, so that the pitch angle of the head can be adjusted according to the inspection needs under the premise that the head is fixed, which meets the actual inspection needs and is easy to operate and adjust.

[0008] As a preferred embodiment, a plurality of guide rods are fixedly mounted on the inner wall of the base plate, and the movable plate is slidably mounted on the outer surfaces of the plurality of guide rods.

[0009] By adopting the above scheme, when the movable plate moves horizontally during the rotation of the bidirectional screw, the movable plate slides on the surface of the guide rod, and then the movement of the movable plate is supported by the setting of the guide rod, so that the movement stability of the movable plate is better.

[0010] As a preferred embodiment, a sliding groove is provided on the side of the plate frame, a sliding block is fixedly installed on the side of the mounting plate, and the sliding block is slidably installed on the inner wall of the sliding groove; a plurality of sockets 1 are provided on the side of the plate frame, a latch is inserted on the socket 1 opposite to the sliding block, and a socket 2 used in conjunction with the latch is provided on the sliding block.

[0011] With the above solution, the sliding block slides up and down in the sliding groove and is locked in position with the latch, so that the distance between the two head fixing plates on the same side can be adjusted, which is suitable for fixing heads of different sizes.

[0012] As a preferred embodiment, a sponge pad is fixedly installed on the side of the head fixing plate.

[0013] By adopting the above solution, the sponge pad can protect the head and avoid direct contact between the head fixing plate and the head.

[0014] As a preferred embodiment, a locking rod is slidably inserted into the side of the side plate, a plurality of locking grooves for the locking rod to be inserted into the side of the rotating sleeve are opened, and the outer sleeve of the locking rod is provided with a spring whose two ends are respectively fixedly connected to the locking rod and the side plate.

[0015] By adopting the above solution, the locking rod is used in conjunction with the spring to adaptively adjust and lock the inclination angle of the base plate. The locking structure is simple and easy to operate.

[0016] As a preferred embodiment, a plurality of fixing screws are fixedly installed on the side of the rotating sleeve, a plurality of through holes are opened on the fixing sleeve, the fixing screws pass through the through holes and nuts are threadedly installed.

[0017] By adopting the above scheme, the rotating sleeve and the fixed sleeve can be stably fixed on the upright pole frame of the detection seat by using the fixing screws in conjunction with the nuts, so that the fixing and disassembly operations are convenient.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The head fixing device is used by arranging a bidirectional screw to cooperate with a moving plate, a connecting plate and a plate frame. When the bidirectional screw rotates, the plate frames on both sides move synchronously relative to each other, so that the head can be fixed and clamped on both sides. The fixing operation is convenient, and the fixing can be achieved by one rotation, which improves the convenience of operation. In addition, the distance between the two head fixing plates on the plate frame can be adaptively adjusted, which is suitable for fixing and clamping heads of different sizes, thereby improving universality.

[0020] The head fixing device is used by setting a rotating sleeve and a fixed sleeve in conjunction with a locking rod. The rotating sleeve and the fixed sleeve are used to rotate and adjust the angle through a pin shaft, and the locking rod cooperates with a spring to achieve locking. Then, the pitch angle of the head can be adjusted according to inspection needs while the head is fixed, thereby meeting actual inspection needs and being easy to operate and adjust. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the utility model from another angle;

[0023] Figure 3 It is a structural schematic diagram of the cross section of the base plate of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the plate frame and the mounting plate of the utility model;

[0025] Figure 5 It is an exploded schematic diagram of the side plate, rotating sleeve and fixed sleeve of the utility model.

[0026] In the figure: 1. base plate; 2. rotating shaft; 3. bidirectional lead screw; 4. moving plate; 5. connecting plate; 6. plate frame; 7. mounting plate; 8. head fixing plate; 9. side plate; 10. pin shaft; 11. rotating sleeve; 12. fixing sleeve; 13. fixing screw; 14. nut; 15. guide rod; 16. sliding block; 17. latch; 18. sponge pad; 19. locking rod; 20. spring. DETAILED DESCRIPTION

[0027] See also Figure 1-5 The utility model provides a head fixing device, including a base plate 1, the left and right sides of the inner wall of the base plate 1 are rotatably installed with a rotating shaft 2, a two-way screw 3 is fixedly installed between the two rotating shafts 2, a knob is fixedly installed at the end of one of the rotating shafts 2, and a movable plate 4 is threadedly installed on the two threaded outer surfaces of the two sections of the two-way screw 3, and a connecting plate 5 is fixedly installed on the upper and lower ends of the movable plate 4, and a same plate frame 6 is fixedly installed between the two connecting plates 5 on the same side, and the upper and lower sides of the base plate 1 are provided with channels for the movement of the connecting plate 5, and two mounting plates 7 are movably arranged on the side of the plate frame 6, and a head fixing plate 8 is fixedly installed on the side of the mounting plate 7, and two side plates 9 are fixedly installed on the back of the base plate 1, and a pin shaft 10 is hingedly installed between the two side plates 9, and a rotating sleeve 11 is fixed on the outer surface of the pin shaft 10, and a fixed sleeve 12 is arranged on the side of the rotating sleeve 11, and semicircular card grooves are arranged on the opposite surfaces of the rotating sleeve 11 and the fixed sleeve 12.

[0028] A plurality of guide rods 15 are fixedly mounted on the inner wall of the base plate 1, and the movable plate 4 is slidably mounted on the outer surfaces of the plurality of guide rods 15. When the movable plate 4 moves horizontally during the rotation of the bidirectional screw 3, the movable plate 4 slides on the surface of the guide rods 15, and then the movement of the movable plate 4 is supported by the setting of the guide rods 15, so that the movement stability of the movable plate 4 is better.

[0029] A sliding groove is provided on the side of the plate frame 6, and a sliding block 16 is fixedly installed on the side of the mounting plate 7. The sliding block 16 is slidably installed on the inner wall of the sliding groove. A plurality of sockets 1 are provided on the side of the plate frame 6, and a latch 17 is inserted on the socket 1 opposite to the sliding block 16. A socket 2 used in conjunction with the latch 17 is provided on the sliding block 16. The sliding block 16 slides up and down in the sliding groove and is locked in position in conjunction with the latch 17. The distance between the two head fixing plates 8 on the same side can be adjusted, and it is suitable for fixing heads of different sizes.

[0030] A sponge pad 18 is fixedly installed on the side of the head fixing plate 8. The sponge pad 18 can protect the head and avoid direct contact between the head fixing plate 8 and the head.

[0031] A locking rod 19 is slidably inserted into the side of the side plate 9, and a plurality of locking grooves for the locking rod 19 to be inserted are provided on the side of the rotating sleeve 11. The outer sleeve of the locking rod 19 is provided with a spring 20 whose two ends are respectively fixedly connected to the locking rod 19 and the side plate 9. The locking rod 19 is used in conjunction with the spring 20 to adaptively adjust and lock the inclination angle of the base plate 1. The locking structure is simple and easy to operate.

[0032] A plurality of fixing screws 13 are fixedly installed on the side of the rotating sleeve 11, and a plurality of through holes are opened on the fixing sleeve 12. The fixing screws 13 pass through the through holes and are threadedly installed with nuts 14. By using the fixing screws 13 in conjunction with the nuts 14, the rotating sleeve 11 and the fixing sleeve 12 can be stably clamped on the upright frame of the detection seat, which is convenient for fixing and disassembling operations.

[0033] When in use, the rotating sleeve 11 and the fixing sleeve 12 are respectively clamped on the upright pole frame of the detection chair through the semicircular groove, and fixed by fixing screws 13 and nuts 14. Then, the patient lies on the bed with his head located between the plate frames 6 on both sides. The position of the two head fixing plates 8 on the plate frames 6 is adjusted according to the size of the patient's head. When adjusting, the latch 17 is pulled out to support the mounting plate 7 and move up and down in cooperation with the sliding block 16. After adjusting to the appropriate position, the latch 17 is inserted to lock it. Then, the knob is turned to drive the rotating shaft 2 to drive the two-way lead screw 3 to rotate, thereby driving the two moving plates 4 to be relatively close, thereby driving the two plate frames 6 to be relatively close through the connecting plate 5, and then driving the head fixing plates 8 on both sides to be relatively close to achieve head fixation. When the head needs to be adjusted in pitch angle, the locking rod 19 is pulled to disengage the locking rod 19 from the locking groove, and the base plate 1 is supported to achieve angle adjustment through the side plate 9 and the rotating sleeve 11. After adjustment, the locking rod 19 is released, and the elastic cooperation of the spring 20 is used to drive the locking rod 19 to reset and insert it into the locking groove to complete the adjustment.

Claims

1. A head fixing device, characterized in that: The invention comprises a base plate (1), wherein a rotating shaft (2) is rotatably mounted on the left and right side surfaces of the inner wall of the base plate (1), a bidirectional lead screw (3) is fixedly mounted between the two rotating shafts (2), a knob is fixedly mounted on the end of one of the rotating shafts (2), a movable plate (4) is threadedly mounted on the two threaded outer surfaces of the two sections of the bidirectional lead screw (3), a connecting plate (5) is fixedly mounted on the upper and lower ends of the movable plate (4), a plate frame (6) is fixedly mounted between the two connecting plates (5) on the same side, and the upper and lower side surfaces of the base plate (1) are provided with A channel for the connection plate (5) to move, two mounting plates (7) are movably provided on the side of the plate frame (6), a head fixing plate (8) is fixedly installed on the side of the mounting plate (7), two side plates (9) are fixedly installed on the back of the base plate (1), a pin shaft (10) is hingedly installed between the two side plates (9), a rotating sleeve (11) is fixed on the outer surface of the pin shaft (10), a fixing sleeve (12) is provided on the side of the rotating sleeve (11), and semicircular grooves are provided on the opposite surfaces of the rotating sleeve (11) and the fixing sleeve (12).

2. The head fixing device according to claim 1, characterized in that: A plurality of guide rods (15) are fixedly mounted on the inner wall of the base plate (1), and the movable plate (4) is slidably mounted on the outer surfaces of the plurality of guide rods (15).

3. The head fixing device according to claim 1, characterized in that: A sliding groove is provided on the side of the plate frame (6), a sliding block (16) is fixedly mounted on the side of the mounting plate (7), the sliding block (16) is slidably mounted on the inner wall of the sliding groove, a plurality of plug holes (1) are provided on the side of the plate frame (6), a plug pin (17) is inserted into the plug hole (1) opposite to the sliding block (16), and a plug hole (2) for use in conjunction with the plug pin (17) is provided on the sliding block (16).

4. The head fixing device according to claim 1, characterized in that: A sponge pad (18) is fixedly mounted on the side of the head fixing plate (8).

5. The head fixing device according to claim 1, characterized in that: A locking rod (19) is slidably inserted into the side surface of the side plate (9), a plurality of locking grooves for the locking rod (19) to be inserted are provided on the side surface of the rotating sleeve (11), and a spring (20) is sleeved outside the locking rod (19) with two ends fixedly connected to the locking rod (19) and the side plate (9) respectively.

6. The head fixing device according to claim 1, characterized in that: A plurality of fixing screws (13) are fixedly mounted on the side of the rotating sleeve (11), a plurality of through holes are opened on the fixing sleeve (12), the fixing screws (13) pass through the through holes and nuts (14) are threadedly mounted thereon.

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