An epilepsy attack protection device for neurology
By designing a heightened plate and a buffer mechanism, a seizure protection device for neurology has been developed, which solves the problem of poor protection in existing hospital beds, effectively protects epilepsy patients, and reduces secondary injuries during seizures.
Patent Information
- Application Number
- CN202110008356.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-01-05
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2041-01-05
AI Technical Summary
The existing bed railings are too low and ineffective, making it easy for epilepsy patients to fall or hit their heads on the bed during seizures, increasing the risk of secondary injury.
A seizure protection device for neurology was designed, including a base plate, sleeve, buffer spring, sliding column, buffer rod, bed board body, fixed guard plate, foot guard plate, head guard plate and movable guard plate. The device prevents patients from falling through the raised plate structure and buffer mechanism, and provides cushioning protection during a seizure.
Effectively prevents patients from falling, reduces collisions with the bed board, and lowers the risk of secondary injury. The headrest provides flexible protection through sponge pads and horizontal buffer springs to avoid head injuries.
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Figure CN112587330B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of neurology, and in particular to an epileptic seizure protection device for neurology. Background Art
[0002] Due to the different starting sites and transmission methods of abnormal discharges, the clinical manifestations of epileptic seizures are complex and varied, and can manifest as paroxysmal movement, sensory, autonomic nervous, consciousness and mental disorders. The causes of epilepsy are varied. With regular anti-epileptic drug treatment, about 70% of epilepsy patients can have their seizures controlled, and 50% to 60% of them can be cured after 2 to 5 years of treatment. Patients can work and live like normal people.
[0003] In the neurology ward, epileptic patients may have attacks at night and there is no medical staff to take care of them. As a result, the patients may fall under the bed due to attacks and involuntary convulsions, causing secondary injuries to the patients. In addition, since the existing bed protection fence is low and the protection effect is not good, it is very likely that the patients will fall. In addition, during an attack, the patient's head is likely to hit the backrest of the bed, which may cause the patient's condition to worsen. Because the cause of the disease is related to the brain, it is more dangerous if the brain is hit. In view of the shortcomings of the prior art, the present invention discloses an epileptic seizure protection device for neurology to solve the above problems. Summary of the invention
[0004] 1. Technical issues to be resolved
[0005] In view of the deficiencies of the prior art, the present invention discloses an epilepsy attack protection device for neurology to solve the problems raised in the above background technology.
[0006] (II) Technical solution
[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an epilepsy attack protection device for neurology, comprising a base plate, wherein sleeves are fixedly connected at the top four corners of the base plate, an inner cavity is provided inside the sleeve, a vertical buffer spring is fixedly connected to the bottom wall of the inner cavity of the sleeve, a sliding column is fixedly connected to the top of the vertical buffer spring, a buffer rod is fixedly connected to the top of the sliding column, the top of the buffer rod extends upward through the sleeve and is fixedly connected to a bed board body, a fixed guard plate is fixedly connected to the top right side of the bed board body, a foot guard plate is fixedly connected to the top back side of the bed board body, a head baffle is slidably connected to the top front side of the bed board body, a buffer mechanism corresponding to the head baffle is provided at the bottom of the base plate, a movable guard plate is movably clamped at the top left side of the bed board body, and a locking mechanism corresponding to the movable guard plate is provided at the bottom of the bed board body.
[0008] Preferably, the radial width of the sliding column is greater than the radial width of the buffer rod, the vertical buffer spring is in a compressed state, and the top of the sliding column abuts against the top wall of the inner cavity of the sleeve.
[0009] Preferably, the locking mechanism includes a rectangular slot and a limit baffle, the rectangular slot is opened on the upper surface of the bed board body, the limit baffle is fixedly connected to the bottom of the bed board body, the bottom of the bed board body is fixedly connected with a vertical plate, and the vertical plate and the limit baffle are symmetrically distributed about two sides of the rectangular slot.
[0010] Preferably, a waist-shaped hole is opened on the side of the movable guard plate, a partition is fixedly connected to the bottom of the movable guard plate, a plug plate is fixedly connected to the bottom of the partition plate, a positioning plate is fixedly connected to the bottom of the plug plate, and a locking hole is opened on the side wall of the positioning plate.
[0011] Preferably, the plug plate is movably inserted in the rectangular slot, the positioning plate is located between the vertical plate and the limit baffle, the side wall of the vertical plate is fixedly connected with a nut seat, the axis of the nut seat is threadedly connected with a clamping bolt, the clamping bolt is fixedly connected with a locking rod, the locking rod is movably inserted in the locking hole and the limit baffle, and the limit baffle and the vertical plate are provided with circular holes corresponding to the locking rod.
[0012] Preferably, the buffer mechanism comprises a slide groove and a bearing plate, the slide groove is arranged on the bed board body, the slide groove is in two groups, and the bearing plate is fixedly connected to the bottom of the bed board body.
[0013] Preferably, two groups of sliders are fixedly connected to the bottom of the head baffle, the sliders are slidably connected in the slide grooves, the bottoms of the sliders pass through the slide grooves and are fixedly connected to fitting plates, and the bottoms of the fitting plates are fixedly connected to vertical plates.
[0014] Preferably, the vertical plate is parallel to the load-bearing plate, a horizontal buffer spring is fixedly connected to one side of the vertical plate close to the load-bearing plate, one end of the horizontal buffer spring away from the vertical plate is fixedly connected to the load-bearing plate, and the horizontal buffer spring is in a compressed state.
[0015] Preferably, a sponge pad is fixedly connected to the back side of the head baffle, and the head baffle is located between the rectangular slot and the fixed guard plate.
[0016] The present invention discloses an epilepsy attack protection device for neurology, which has the following beneficial effects:
[0017] 1. The epilepsy attack protection device for neurology can be used by the user to place the patient on the main body of the bed. The fixed guard plate, foot guard plate, head baffle and movable guard plate arranged nearby can protect the patient. The height of the fixed guard plate, foot guard plate, head baffle and movable guard plate are all elevated plates to protect the patient and prevent the patient from falling to the ground. In addition, the four groups of buffer rods arranged at the bottom can move downward and compress the vertical buffer springs when the patient has an attack, thereby buffering the patient, reducing the collision between the patient and the bed board, and reducing secondary injuries to the patient.
[0018] 2. The epilepsy attack protection device for neurology can be easily installed or removed by the user when in use. Therefore, the movable guard plate can be removed during periods other than sleeping, making it convenient for the patient to carry out normal physiological activities. The installation and fixation of the movable guard plate is simple and convenient, saving time and effort. The device can ensure good fixing effect and stable support of the movable guard plate through the engagement of the limit baffle plate and the vertical plate set at the bottom, thereby avoiding the problem of unstable fixation of the movable guard plate and poor protection effect.
[0019] 3. The epileptic seizure protection device for neurology department is used. When the patient has an epileptic seizure, his head may collide with the head baffle. Since the disease is caused by head abnormality during an attack, the head collision may make the situation more serious. When colliding with the head baffle, the head baffle will move backward to avoid a hard collision between the patient's head and the head baffle. The sponge pad can reduce the impact force of the collision. At the same time, the horizontal buffer spring can achieve secondary buffering, so that the head baffle can move along the upper surface of the bed board body and compress the horizontal buffer spring to ensure that the head will not be seriously collided and avoid head injury to the patient. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the structure of the present invention;
[0021] Figure 2 is a cross-sectional view of the sleeve of the present invention;
[0022] Figure 3 It is a structural diagram of the movable guard plate of the present invention;
[0023] Figure 4 It is a structural diagram of the main body of the bed board of the present invention;
[0024] Figure 5 It is a structural diagram of the head baffle of the present invention;
[0025] Figure 6 It is a structural diagram of the bearing plate of the present invention.
[0026] In the figure: 1. bottom plate; 2. sleeve; 201. vertical buffer spring; 202. sliding column; 3. buffer rod; 4. bed board body; 5. fixed guard plate; 6. foot guard plate; 7. head baffle plate; 701. sponge pad; 702. slider; 703. fitting plate; 704. vertical plate; 705. horizontal buffer spring; 8. movable guard plate; 801. waist round hole; 802. partition; 803. plug plate; 804. positioning plate; 805. locking hole; 9. rectangular slot; 10. limit baffle; 11. vertical plate; 12. nut seat; 13. clamping bolt; 14. locking rod; 15. slide groove; 16. bearing plate. DETAILED DESCRIPTION
[0027] Embodiment 1:
[0028] The embodiment of the present invention provides an epilepsy attack protection device for neurology, such as Figure 1-6 As shown, it includes a bottom plate 1, a sleeve 2 is fixedly connected at the four corners of the top of the bottom plate 1, an inner cavity is provided inside the sleeve 2, a vertical buffer spring 201 is fixedly connected to the bottom wall of the inner cavity of the sleeve 2, a sliding column 202 is fixedly connected to the top of the vertical buffer spring 201, a buffer rod 3 is fixedly connected to the top of the sliding column 202, the top of the buffer rod 3 extends upward through the sleeve 2 and is fixedly connected to a bed board body 4, a fixed guard plate 5 is fixedly connected to the top right side of the bed board body 4, a foot guard plate 6 is fixedly connected to the top back side of the bed board body 4, a head baffle 7 is slidably connected to the top front side of the bed board body 4, a buffer mechanism corresponding to the head baffle 7 is provided at the bottom of the bottom plate 1, and a buffer mechanism corresponding to the head baffle 7 is provided at the top left side of the bed board body 4 The side movable card is connected with a movable guard plate 8, and the bottom of the bed board body 4 is provided with a locking mechanism corresponding to the movable guard plate 8. When the user is in use, the patient can be easily placed on the bed board body 4. The fixed guard plate 5, foot guard plate 6, head baffle plate 7 and movable guard plate 8 arranged nearby can protect the patient. The heights of the fixed guard plate 5, foot guard plate 6, head baffle plate 7 and movable guard plate 8 are all elevated plates to protect the patient and prevent the patient from falling to the ground. In addition, the four groups of buffer rods 3 arranged at the bottom can move downward and compress the vertical buffer spring 201 when the patient has an attack, thereby buffering the patient, reducing the collision between the patient and the bed board, and reducing the secondary injury of the patient.
[0029] The radial width of the sliding column 202 is greater than the radial width of the buffer rod 3. The vertical buffer spring 201 is in a compressed state. The top of the sliding column 202 is against the top wall of the inner cavity of the sleeve 2. When the sliding column 202 moves up and down, it will slide stably along the inner cavity of the sleeve 2, and the inner cavity of the sleeve 2 will limit it.
[0030] When in use, the user can easily place the patient on the bed board body 4, and the fixed guard plate 5, foot guard plate 6, head baffle 7 and movable guard plate 8 arranged nearby can protect the patient. The heights of the fixed guard plate 5, foot guard plate 6, head baffle 7 and movable guard plate 8 are all elevated plates to protect the patient and prevent the patient from falling to the ground. In addition, the four groups of buffer rods 3 arranged at the bottom can move downward and compress the vertical buffer springs 201 when the patient has an attack, thereby buffering the patient, reducing the collision between the patient and the bed board, and reducing secondary injuries to the patient.
[0031] When the patient has an attack and the whole body is convulsing, the patient will move irregularly, which will be blocked by the fixed guard plate 5, foot guard plate 6, head baffle plate 7 and movable guard plate 8. In addition, when an attack occurs, the bed board body 4 will be driven to vibrate up and down, and the bed board body 4 will drive the buffer rod 3 to move downward and slide in the sleeve 2. The vertical buffer spring 201 will reduce the impact force, and frequent buffering will be performed to avoid the patient's collision with the bed board body 4 to cause pain and secondary injury.
[0032] Embodiment 2:
[0033] The embodiment of the present invention provides an epilepsy attack protection device for neurology, such as Figure 1-6 As shown, it includes a bottom plate 1, a sleeve 2 is fixedly connected at the four corners of the top of the bottom plate 1, an inner cavity is provided inside the sleeve 2, a vertical buffer spring 201 is fixedly connected to the bottom wall of the inner cavity of the sleeve 2, a sliding column 202 is fixedly connected to the top of the vertical buffer spring 201, a buffer rod 3 is fixedly connected to the top of the sliding column 202, the top of the buffer rod 3 extends upward through the sleeve 2 and is fixedly connected to a bed board body 4, a fixed guard plate 5 is fixedly connected to the right side of the top of the bed board body 4, a foot guard plate 6 is fixedly connected to the top back of the bed board body 4, a head baffle 7 is slidably connected to the top front of the bed board body 4, and a buffer plate corresponding to the head baffle 7 is provided at the bottom of the bottom plate 1. The movable guard plate 8 is movably connected to the left side of the top of the bed board body 4, and a locking mechanism corresponding to the movable guard plate 8 is provided at the bottom of the bed board body 4. The user can easily install or remove the movable guard plate 8 when using it. Therefore, the movable guard plate 8 can be removed during time periods other than sleeping, so it is convenient for the patient to carry out normal physiological activities. When installing and fixing the movable guard plate 8, the operation is simple and convenient, saving time and effort. The device can ensure a good fixing effect and stable support for the movable guard plate 8 through the engagement of the limit baffle 10 and the vertical plate 11 set at the bottom, thereby avoiding the problem of unstable fixation of the movable guard plate 8 and poor protective effect.
[0034] The locking mechanism includes a rectangular slot 9 and a limit baffle 10. The rectangular slot 9 is opened on the upper surface of the bed board body 4. The limit baffle 10 is fixedly connected to the bottom of the bed board body 4. The bottom of the bed board body 4 is fixedly connected with a vertical plate 11. The vertical plate 11 and the limit baffle 10 are symmetrically distributed on both sides of the rectangular slot 9. The locking mechanism has a simple structure and is easy to use, so it is convenient to install and fix the movable guard plate 8.
[0035] A waist-shaped hole 801 is provided on the side of the movable guard plate 8, a partition plate 802 is fixedly connected to the bottom of the movable guard plate 8, an insert plate 803 is fixedly connected to the bottom of the partition plate 802, a positioning plate 804 is fixedly connected to the bottom of the insert plate 803, and a locking hole 805 is provided on the side wall of the positioning plate 804. The waist-shaped hole 801 can facilitate the patient to remove the clamping bolt 13 from the inside by himself, thereby releasing the installation and fixation of the movable guard plate 8.
[0036] The plug plate 803 is movably inserted in the rectangular slot 9, the positioning plate 804 is located between the vertical plate 11 and the limit baffle 10, the side wall of the vertical plate 11 is fixedly connected with a nut seat 12, and the axis of the nut seat 12 is threadedly connected with a clamping bolt 13, and the clamping bolt 13 is fixedly connected with a locking rod 14, and the locking rod 14 is movably inserted in the locking hole 805 and the limit baffle 10, and the limit baffle 10 and the vertical plate 11 are provided with circular holes corresponding to the locking rod 14, and the limit baffle 10 and the vertical plate 11 can provide stable lateral support for the plug plate 803 and the positioning plate 804, thereby ensuring a good installation and fixing effect of the movable guard plate 8.
[0037] When in use, the user can easily install or remove the movable guard plate 8. Therefore, the movable guard plate 8 can be removed during time periods other than sleeping, which is convenient for the patient to carry out normal physiological activities. When installing and fixing the movable guard plate 8, the operation is simple and convenient, saving time and effort. The device can ensure good fixing effect and stable support of the movable guard plate 8 through the engagement of the limit baffle plate 10 and the vertical plate 11 set at the bottom, thereby avoiding the problem of unstable fixation of the movable guard plate 8 and poor protective effect.
[0038] When installing and fixing the movable guard plate 8, first align the movable guard plate 8 with the rectangular slot 9 and insert it downward, so that the insert plate 803 and the positioning plate 804 are aligned with the rectangular slot 9 and inserted downward. When the bottom of the partition 802 is in contact with the upper surface of the bed board body 4, directly insert the locking rod 14 into the nut seat 12 and the locking hole 805, and rotate the clamping bolt 13 so that the clamping bolt 13 is tightened in the nut seat 12. At this time, the installation and fixation of the movable guard plate 8 is achieved. When the movable guard plate 8 needs to be removed later, the above installation process can be reversed.
[0039] Embodiment 3:
[0040] The embodiment of the present invention provides an epilepsy attack protection device for neurology, such as Figure 1-6 As shown, it includes a base plate 1, a sleeve 2 is fixedly connected at the four corners of the top of the base plate 1, an inner cavity is provided inside the sleeve 2, a vertical buffer spring 201 is fixedly connected to the bottom wall of the inner cavity of the sleeve 2, a sliding column 202 is fixedly connected to the top of the vertical buffer spring 201, a buffer rod 3 is fixedly connected to the top of the sliding column 202, the top of the buffer rod 3 passes through the sleeve 2 and extends upward and is fixedly connected to a bed board body 4, a fixed guard plate 5 is fixedly connected to the top right side of the bed board body 4, a foot guard plate 6 is fixedly connected to the top back of the bed board body 4, a head baffle 7 is slidably connected to the top front of the bed board body 4, a buffer mechanism corresponding to the head baffle 7 is provided at the bottom of the base plate 1, and a movable clamping device is provided at the top left side of the bed board body 4 There is a movable guard plate 8, and a locking mechanism corresponding to the movable guard plate 8 is provided at the bottom of the bed board body 4. When the patient has an attack, his head may collide with the head baffle 7. Since the disease is caused by head abnormality during the attack, the head collision may cause more serious problems. When colliding with the head baffle 7, the head baffle 7 will move backward to avoid a hard collision between the patient's head and the head baffle 7. The sponge pad 701 can reduce the impact force of the collision. At the same time, the horizontal buffer spring 705 can achieve secondary buffering, so that the head baffle 7 can move along the upper surface of the bed board body 4 and compress the horizontal buffer spring 705, ensuring that the head will not be seriously collided and avoiding head injuries to the patient.
[0041] The buffer mechanism includes a slide 15 and a bearing plate 16. The slide 15 is arranged on the bed board body 4. There are two groups of slides 15. The bearing plate 16 is fixedly connected to the bottom of the bed board body 4. The buffer mechanism has a simple structure, is not easy to damage, and is easy to use.
[0042] Two sets of sliders 702 are fixedly connected to the bottom of the head baffle 7. The sliders 702 are slidably connected in the slide grooves 15. The bottoms of the sliders 702 pass through the slide grooves 15 and are fixedly connected to the fitting plates 703. The bottoms of the fitting plates 703 are fixedly connected to the vertical plates 704.
[0043] The vertical plate 704 is parallel to the load-bearing plate 16, and a horizontal buffer spring 705 is fixedly connected to one side of the vertical plate 704 close to the load-bearing plate 16. One end of the horizontal buffer spring 705 away from the vertical plate 704 is fixedly connected to the load-bearing plate 16, and the horizontal buffer spring 705 is in a compressed state. The load-bearing plate 16 is set to provide resistance for the horizontal buffer spring 705, ensuring that the reaction force of the horizontal buffer spring 705 pushes the vertical plate 704.
[0044] A sponge pad 701 is fixedly connected to the back of the head baffle 7. The head baffle 7 is located between the rectangular slot 9 and the fixed guard plate 5. The sponge pad 701 can ensure the comfort of the head and avoid head injuries during collision.
[0045] When the patient has an attack, his head may collide with the head baffle 7. Since the disease is caused by head abnormality during an attack, the head collision may make the condition more serious. When colliding with the head baffle 7, the head baffle 7 will move backwards to avoid a hard collision between the patient's head and the head baffle 7. The sponge pad 701 can reduce the impact force of the collision. At the same time, the horizontal buffer spring 705 can achieve secondary buffering, so that the head baffle 7 can move along the upper surface of the bed board body 4 and compress the horizontal buffer spring 705, thereby ensuring that the head will not be seriously collided and avoiding head injuries to the patient.
[0046] When the patient's head collides with the head baffle 7, it will contact the sponge pad 701, which is relatively soft. At the same time, the head baffle 7 will move backward, and the head baffle 7 will drive the slider 702 to slide, and the slider 702 will drive the fitting plate 703 to move, and the fitting plate 703 will drive the vertical plate 704 to move, and the vertical plate 704 will drive the horizontal buffer spring 705 to compress, and the reaction force of the horizontal buffer spring 705 will ensure that the head baffle 7 fits the patient's head to prevent the patient from shifting or falling off the bed board body 4.
[0047] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.
Claims
1. An epilepsy protection device for neurology, comprising a base plate (1), characterized in that: The four corners of the top of the bottom plate (1) are fixedly connected with sleeves (2), an inner cavity is provided inside the sleeve (2), a vertical buffer spring (201) is fixedly connected to the bottom wall of the inner cavity of the sleeve (2), a sliding column (202) is fixedly connected to the top of the vertical buffer spring (201), a buffer rod (3) is fixedly connected to the top of the sliding column (202), the top of the buffer rod (3) passes through the sleeve (2), extends upward and is fixedly connected to a bed board body (4), a fixed guard plate (5) is fixedly connected to the right side of the top of the bed board body (4), a foot guard plate (6) is fixedly connected to the back side of the top of the bed board body (4), a head baffle plate (7) is slidably connected to the front side of the top of the bed board body (4), a buffer mechanism corresponding to the head baffle plate (7) is provided at the bottom of the bed board body (4), a movable guard plate (8) is movably connected to the left side of the top of the bed board body (4), and a locking mechanism corresponding to the movable guard plate (8) is provided at the bottom of the bed board body (4); The buffer mechanism comprises a slide groove (15) and a bearing plate (16); the slide groove (15) is provided on the bed board body (4); the slide groove (15) is provided in two groups; and the bearing plate (16) is fixedly connected to the bottom of the bed board body (4); The bottom of the head baffle (7) is fixedly connected to two groups of sliders (702), the sliders (702) are slidably connected in the slide grooves (15), the bottom of the sliders (702) passes through the slide grooves (15) and is fixedly connected to a bonding plate (703), and the bottom of the bonding plate (703) is fixedly connected to a vertical plate (704); The vertical plate (704) is parallel to the load-bearing plate (16); a horizontal buffer spring (705) is fixedly connected to a side of the vertical plate (704) close to the load-bearing plate (16); an end of the horizontal buffer spring (705) away from the vertical plate (704) is fixedly connected to the load-bearing plate (16), and the horizontal buffer spring (705) is in a compressed state; The locking mechanism comprises a rectangular slot (9) and a limit baffle (10), wherein the rectangular slot (9) is formed on the upper surface of the bed board body (4), the limit baffle (10) is fixedly connected to the bottom of the bed board body (4), and a vertical plate (11) is fixedly connected to the bottom of the bed board body (4), wherein the vertical plate (11) and the limit baffle (10) are symmetrically distributed on both sides of the rectangular slot (9).
2. The epilepsy protection device for neurology according to claim 1, characterized in that: The radial width of the sliding column (202) is greater than the radial width of the buffer rod (3); the vertical buffer spring (201) is in a compressed state; the top of the sliding column (202) abuts against the top wall of the inner cavity of the sleeve (2).
3. The epilepsy protection device for neurology according to claim 1, characterized in that: A waist-shaped hole (801) is provided on the side of the movable guard plate (8); a partition plate (802) is fixedly connected to the bottom of the movable guard plate (8); a plug plate (803) is fixedly connected to the bottom of the partition plate (802); a positioning plate (804) is fixedly connected to the bottom of the plug plate (803); and a locking hole (805) is provided on the side wall of the positioning plate (804).
4. The epilepsy protection device for neurology according to claim 3, characterized in that: The plug plate (803) is movably inserted into the rectangular slot (9), the positioning plate (804) is located between the vertical plate (11) and the limit baffle (10), the side wall of the vertical plate (11) is fixedly connected with a nut seat (12), the axis of the nut seat (12) is threadedly connected with a clamping bolt (13), the clamping bolt (13) is fixedly connected with a locking rod (14), the locking rod (14) is movably inserted into the locking hole (805) and the limit baffle (10), and the limit baffle (10) and the vertical plate (11) are provided with a circular hole corresponding to the locking rod (14).
5. The epilepsy protection device for neurology according to claim 1, characterized in that: A sponge pad (701) is fixedly connected to the back of the head baffle (7), and the head baffle (7) is located between the rectangular slot (9) and the fixed guard plate (5).
Citation Information
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