Supporting structure of head and neck protection device

Abstract

The utility model discloses a supporting structure of a head and neck protection device, and mainly relates to the field of head and neck protection. The supporting structure is arranged on a back plate of the head and neck protection device and comprises a main shaft, a spiral transmission mechanism connected with the main shaft and a reinforcing piece. The spiral transmission mechanism comprises a rotating shaft rotationally connected with the main shaft, and when the rotating shaft of the spiral transmission mechanism rotates, the spiral transmission mechanism drives the main shaft to move; a reinforcing piece is arranged at the joint of the main shaft and the transmission shaft and used for connecting the main shaft and the rotating shaft, and when the rotating shaft rotates, the main shaft does not rotate. The head and neck protection device has the advantages that the structure stability is good, the problem of height adjustment of the adjusting mechanism and the main shaft is solved, the stability and impact resistance of the whole structure are not affected, the main shaft and the rotating shaft form a whole, and the impact resistance and lateral bending resistance strength of the head and neck protection device are further improved.

Description

Technical Field

[0001] The utility model relates to the field of head and neck protection, in particular to a supporting structure of a head and neck protection device. Background Art

[0002] The statements in this section merely provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] During military training (parachuting) or construction sites, head trauma is very likely to occur, so according to regulations and requirements, it is necessary to wear protective devices such as safety helmets and helmets. The head can be protected by the protective device when it is hit, but the impact force on the head cannot be buffered and is transmitted to the neck. Since the neck is relatively fragile, it is also very harmful to the human body, ranging from sprains and contusions to cervical disc injuries and even death. Generally speaking, after a serious impact, the injured will usually die within a short time. Even if they are successfully treated, they will also be left with high paraplegia and unable to take care of themselves. The quality of life of the injured is extremely poor, and they need to be accompanied and cared for, which also brings a burden to the family.

[0004] As for the existing head and neck protection devices, most of them limit the movement of the wearer's neck in the flexion and extension direction, and lack the limit on the wearer's neck in the horizontal direction. During skydiving, due to the non-standard skydiving movements during training, it is easy for the head to hit the ground first. Since the position and direction of the head landing are uncertain, this will cause the wearer's head and neck to be impacted from different directions. During construction on the construction site, most of the time, falling objects from high altitude hit the head, but there are also cases where workers fall from high altitudes, and the direction and posture of the fall are uncertain. Therefore, this requires the head and neck protection device to be more comprehensive in the direction of head protection, and it is necessary to buffer the impact from other directions, and it can also effectively protect the wearer's head.

[0005] However, because everyone has different heights and bodies, when the support structure supports the helmet, the height position of the helmet also needs to be adjusted. However, as for the support structure, most of them include a retractable structure, a threaded lifting structure, and a sliding adjustment structure. However, there are many ways to adjust such adjustment mechanisms, but most of these adjustment mechanisms will affect the overall impact resistance of the head and neck protection device. For the retractable structure and the sliding adjustment structure, they will definitely be affected by the components of the limiting structure, so the impact resistance of the two is low and is restricted by the components of the limiting structure. For the threaded lifting structure, during the height adjustment process, it will synchronously drive the helmet to rotate, so a structure is needed to separate the two during the rotation process and have little impact on the impact resistance of the overall support structure. Utility Model Content

[0006] The purpose of the utility model is to provide a support structure for a head and neck protection device, which is used in the head and neck protection device to provide impact resistance and bending resistance for the wearer's helmet, avoid neck injuries to soldiers due to non-standard movements during parachute training, and protect the cervical spine and head. The application has good structural stability, solves the problem of height adjustment of the adjustment mechanism and the main shaft, and does not affect the stability and impact resistance of the overall structure, so that the main shaft and the rotating shaft form a whole, further improving the impact resistance and lateral bending resistance of the head and neck protection device.

[0007] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0008] A support structure for a head and neck protection device, the support structure is arranged on a back plate of the head and neck protection device, the support structure includes a main shaft, a spiral transmission mechanism connected to the main shaft, and a reinforcement piece; the spiral transmission mechanism includes a rotating shaft rotatably connected to the main shaft, when the rotating shaft of the spiral transmission mechanism rotates, the spiral transmission mechanism drives the main shaft to move; a reinforcement piece is provided at the connection between the main shaft and the transmission shaft, the reinforcement piece is used to connect the main shaft and the rotating shaft, and when the rotating shaft rotates, the main shaft does not rotate.

[0009] The rotating shaft and the main shaft are matched with a connecting shaft, and the main shaft is provided with a connecting hole adapted to the connecting shaft.

[0010] The reinforcement includes a connecting sleeve, a bearing arranged inside the connecting sleeve, a locking hole arranged on the connecting sleeve, a locking bolt matched with the locking hole, and a limit seat arranged on the back plate; the limit seat cooperates with the main shaft, the outer diameter of the bearing is matched with the connecting sleeve, the inner diameter of the bearing is matched with the connecting shaft diameter, the rotating shaft is provided with a clearance groove, the clearance groove is matched with the locking hole, and the locking bolt acts on the rotating shaft after being screwed.

[0011] The spiral transmission mechanism also includes a transmission seat arranged on the back plate and a knob arranged at the bottom of the rotating shaft; a worm section is provided at the bottom of the rotating shaft, and a worm bar section cooperating with the worm section is provided in the transmission seat. By turning the knob, the worm and the worm bar are meshed, thereby driving the main shaft to move.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] Used in head and neck protection devices, it provides impact resistance and bending resistance for the wearer's helmet, avoids neck injuries to soldiers due to non-standard movements during parachute training, and plays a role in protecting the cervical spine and head. The application has good structural stability, solves the problem of height adjustment of the adjustment mechanism and the main shaft, and does not affect the stability and impact resistance of the overall structure, so that the main shaft and the rotating shaft form a whole, further improving the impact resistance and lateral bending resistance of the head and neck protection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Attached Figure 1 This is a view of the head and neck protection device.

[0015] Attached Figure 2 It is a rear view of the head and neck protection device.

[0016] Attached Figure 3 It is a rear view of the head and neck protection device.

[0017] Attached Figure 4 It is a sectional view of the structural part of the utility model.

[0018] Attached Figure 5 This is a force analysis diagram of the head and neck protection device.

[0019] Numbers shown in the accompanying drawings:

[0020] 1. Back plate; 2. Main shaft; 3. Rotating shaft; 4. Connecting shaft; 5. Connecting hole; 6. Connecting sleeve; 7. Bearing; 8. Locking hole; 9. Locking bolt; 10. Limit seat; 11. Make way groove; 12. Transmission seat; 13. Knob; 14. Worm section; 15. Worm nut section. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the present application.

[0022] The utility model is a support structure of a head and neck protection device, as shown in the accompanying drawings of the specification. Figure 1 — Figure 3 As shown, the support structure is arranged on the back plate 1 of the head and neck protection device, and the support structure includes a main shaft 2, a spiral transmission mechanism connected to the main shaft 2, and a reinforcement member;

[0023] The back plate 1 is a head and neck protection device used to protect and support the human body. The main shaft 2 is connected to the helmet of the head and neck protection device. The helmet is used to protect the head of the wearer. Due to the different heights and body shapes of the wearers, the height of the helmet needs to be adjusted;

[0024] First, the spiral transmission mechanism is described. The spiral transmission mechanism includes a rotating shaft 3 rotatably connected to the main shaft 2, a transmission seat 12 disposed on the back plate 1, and a knob 13 disposed at the bottom of the rotating shaft 3;

[0025] As shown in the attached figure of the instruction manual Figure 2 — Figure 4As shown, a worm segment 14 is provided at the bottom of the rotating shaft 3, and a worm bar segment 15 cooperating with the worm segment 14 is provided in the transmission seat 12. The worm and the worm bar are meshed by rotating the knob 13, thereby driving the main shaft 2 to move, and the thread lead angle between the worm and the worm bar is used to adjust the distance between the main shaft 2 and the back plate 1. A condition needs to be met during the process of rotating the rotating shaft 3 to adjust the height position of the helmet. During the adjustment process, the helmet cannot rotate, which requires that the rotating shaft 3 and the main shaft 2 are connected and in a state of separate rotation, so corresponding improvements are made: the rotating shaft 3 and the main shaft 2 are matched with a connecting shaft 4, and the main shaft 2 is provided with a connecting hole 5 adapted to the connecting shaft 4. The separate rotation can be achieved by matching the connecting shaft 4 with the connecting hole 5, but the main shaft 2 and the rotating shaft 3 need to be connected, and a corresponding reinforcement piece is provided. The reinforcement piece is arranged at the connection between the main shaft 2 and the rotating shaft 3, and the reinforcement piece includes a connecting sleeve 6, a bearing 7 matched inside the connecting sleeve 6, a locking hole 8 arranged on the connecting sleeve 6, a locking bolt 9 matched with the locking hole 8, and a limit seat 10 arranged on the back plate 1;

[0026] The connecting sleeve 6 is divided into two parts, which are connected by bolts. The outer diameter of the bearing 7 is adapted to the connecting sleeve 6. The outer diameter of the bearing 7 cannot rotate in the connecting sleeve 6. The inner diameter of the bearing 7 is adapted to the diameter of the connecting shaft 4, so that the relative rotation between the rotating shaft 3 and the main shaft 2 can be achieved. However, the main shaft 2 is connected to the rotating shaft 3, so further improvement is made: the rotating shaft 3 is provided with a clearance groove 11, the clearance groove 11 is adapted to the locking hole 8, and the locking bolt 9 acts on the rotating shaft 3 after being screwed, and the rotating shaft 3 is limited by the locking bolt 9. For the device as a whole, when adjusting the height, it is generally adjusted according to the situation of each person. After adjustment, each person uses it accordingly, so the situation does not need to be adjusted frequently when adjusting the height. For the process of adjusting the height of the helmet: loosen the locking bolt 9, turn the knob 13 through the rotating shaft 3, so that the worm segment 14 is meshed with the worm segment 15, and then adjust the height of the helmet. After the adjustment is completed, screw the locking bolt 9 so that the locking bolt 9 locks the rotating shaft 3.

[0027] As shown in the attached figure of the instruction manual Figure 5 As shown, the reinforcement part not only plays a connecting and locking role, because the main shaft 2 and the rotating shaft 3 are not integrally arranged, the force analysis of the head and neck protection device is as follows, for the axial force along the direction of the main shaft 2, the main force-bearing structure is: the pre-tightening force of the locking bolt 9 acting on the rotating shaft 3 and the self-locking force of the threaded structure between the worm and the worm bar of the main load-bearing structure, so it can withstand the axial force along the direction of the main shaft 2, but the force along the radial direction of the main shaft 2 is very small, so through the above description: the connecting shaft 4 and the connecting hole 5 are matched, and the reinforcement section is arranged at the connection between the main shaft 2 and the rotating shaft 3, to increase the vertical adjustment structure to withstand the radial force load, and at the same time, it can also play a role in the lateral bending strength of the connection between the main shaft 2 and the connecting shaft 4.

[0028] When the wearer's head is hit in the front, back, left, and right directions, the main shaft 2 load-bearing component is not the main shaft 2 alone, but the main shaft 2 and the worm segment 14 are formed into a whole through the connecting sleeve 6 of the reinforcement to resist the impact. At the same time, the main shaft 2 and the worm segment 14 are sleeved by the connecting sleeve 6 of the reinforcement, and the connecting shaft 4 cooperates with the connecting hole 5 of the main shaft 2, which further increases the bending resistance between the main shaft 2 and the worm segment 14, so that they form a whole. As for the limit seat 10, the limit seat 10 is set on the back plate 1 and cooperates with the main shaft 2. The limit seat 10 and the main shaft 2 are clearance-matched, which does not affect the rotation and displacement of the main shaft 2. At the same time, the main shaft 2 can be reinforced, further increasing the impact resistance and lateral bending resistance of the main shaft 2.

[0029] In summary, it is mainly used in head and neck protection devices, providing impact resistance and bending resistance for the wearer's helmet, avoiding neck injuries to soldiers due to non-standard movements during parachute training, and protecting the cervical spine and head. The present application has good structural stability, solves the problem of height adjustment of the adjustment mechanism and the main shaft 2, and does not affect the stability and impact resistance of the overall structure, so that the main shaft 2 and the rotating shaft 3 form a whole, further improving the impact resistance and lateral bending resistance of the head and neck protection device.

Claims

1. A support structure for a head and neck protection device, characterized in that: The support structure is arranged on a back plate (1) of a head and neck protection device, and comprises a main shaft (2), a spiral transmission mechanism connected to the main shaft (2), and a reinforcement member; The screw transmission mechanism comprises a rotating shaft (3) rotatably connected to the main shaft (2); when the rotating shaft (3) of the screw transmission mechanism rotates, the screw transmission mechanism drives the main shaft (2) to move; A reinforcing piece is provided at the connection between the main shaft (2) and the transmission shaft, and the reinforcing piece is used to connect the main shaft (2) and the rotating shaft (3), and when the rotating shaft (3) rotates, the main shaft (2) does not rotate.

2. The support structure of the head and neck protection device according to claim 1, characterized in that: The rotating shaft (3) and the main shaft (2) are matched to form a connecting shaft (4), and the main shaft (2) is provided with a connecting hole (5) adapted to the connecting shaft (4).

3. The support structure of the head and neck protection device according to claim 2, characterized in that: The reinforcing member comprises a connecting sleeve (6), a bearing (7) arranged in cooperation with the inside of the connecting sleeve (6), a locking hole (8) arranged on the connecting sleeve (6), a locking bolt (9) matched with the locking hole (8), and a limiting seat (10) arranged on the back plate (1); The limiting seat (10) cooperates with the main shaft (2), the outer diameter of the bearing (7) is matched with the connecting sleeve (6), the inner diameter of the bearing (7) is matched with the diameter of the connecting shaft (4), the rotating shaft (3) is provided with a clearance groove (11), the clearance groove (11) is matched with the locking hole (8), and the locking bolt (9) acts on the rotating shaft (3) after being screwed.

4. The support structure of the head and neck protection device according to claim 3, characterized in that: The spiral transmission mechanism also includes a transmission seat (12) arranged on the back plate (1) and a knob (13) arranged at the bottom of the rotating shaft (3); A worm section (14) is provided at the bottom of the rotating shaft (3), and a worm bar section (15) cooperating with the worm section (14) is provided in the transmission seat (12). The worm and the worm bar are meshed by rotating the knob (13), thereby driving the main shaft (2) to move.

Images