Anti-pinch type hovering arm and therapeutic instrument

Abstract

The present application relates to the technical field of medical equipment, and discloses a kind of anti-pinch formula hovering arm and therapeutic instrument, including connecting seat, mounting seat, hovering sleeve and two connecting rods, at least two blocking pieces are connected between connecting seat and mounting seat, and the blocking piece is located between connecting rod and hovering sleeve;Two blocking pieces form a shielding space, and the rotation range of all connecting rods is located in the shielding space;The gap between the blocking piece and the connecting rod and the gap between the blocking piece and the hovering sleeve are all less than 4mm.The present application patent is shielded and protected to connecting rod and hovering sleeve by setting the shielding space formed by blocking piece, and solves the problem that hovering arm is easily pinched in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical equipment, in particular to a clamping injury prevention type hovering arm and therapeutic instrument. BACKGROUND

[0002] Adjusters are usually arranged on medical equipment to adjust the height and angle of the medical equipment, and a connecting rod assembly is usually used in the adjuster to complete the adjustment of the adjustment object. For example, a hovering arm and therapeutic instrument are disclosed in Chinese Patent Application No. CN112089987A, the hovering arm comprises two hovering supports and a hovering mechanism, one end of each of the two hovering supports is rotatably connected with a first movable piece, and the other end of each of the two hovering supports is rotatably connected with a second movable piece, and the two hovering supports are arranged in parallel. During use, a treatment lamp in the therapeutic instrument is connected to the second movable piece, and the two hovering arms can rotate relative to the first movable piece, and during the rotation of the two hovering arms, the height and angle of the treatment lamp can be changed by the second movable piece; the hovering mechanism further comprises a hovering sleeve, a hovering spring is arranged in the hovering sleeve, the hovering sleeve comprises an inner sleeve and an outer sleeve which are sleeved, one end of the inner sleeve is rotatably connected with the first movable piece, and the outer wall of the other end of the inner sleeve abuts against the inner wall of the outer sleeve, the inner sleeve and the outer sleeve form a friction pair, and one end of the outer sleeve away from the inner sleeve is rotatably connected with one of the hovering supports.

[0003] In the hovering arm structure described above, the two hovering supports correspond to two parallel connecting rods, the first movable piece corresponds to a connecting seat, and the second movable piece corresponds to a mounting seat, the connecting seat, the mounting seat and the two connecting rods form a parallel four-bar linkage structure, and the existing adjustment object (for example, the therapeutic instrument) is mounted on the mounting seat, when the connecting rod is pushed to rotate relative to the connecting seat, the height and angle of the mounting seat can be adjusted, and finally the height and angle of the adjustment object are adjusted. During the rotation of the connecting rod, the inner sleeve and the outer sleeve in the hovering sleeve slide relative to each other, and at the same time, the inner sleeve and the outer sleeve also rotate relative to the mounting seat or the connecting seat, so that the length of the sleeve composed of the outer sleeve and the inner sleeve is elongated or shortened as a whole, and the elastic force of the internal hovering spring is also elongated or shortened, so that the elastic force acting on it changes, and finally the mounting seat and the adjustment object are suspended under the combined action of the elastic force of the hovering spring and the friction force between the friction pair.

[0004] Although the above structure can stably adjust the height and angle of the mounting seat, so that the mounting seat and the adjustment object connected thereto are stably suspended to any position, in use, since both connecting rods rotate relative to the connecting seat, the gap between the two connecting rods can increase or decrease, and for medical equipment, it is required that in the equipment environment, the human body or part of the human body can be exposed to the accessible area of the danger (source) of capture, suppression, shear, impact, cutting, winding, rolling, piercing or friction without mechanical danger, specifically, in the structure, it is required that the gap between the two connecting rods is less than 4mm or greater than 25mm to meet the safe use of the equipment, and in the existing structure, when the connecting rod rotates, the gap between the adjacent connecting rods changes, which is easy to pinch the user's limbs; at the same time, since one end of the suspension sleeve is rotatably connected with the connecting seat and the other end is rotatably connected with one of the connecting rods, there is an included angle between the suspension sleeve and the connecting rod, and during the rotation of the connecting rod, the included angle between the suspension sleeve and the two connecting rods changes constantly, which causes the gap between the suspension sleeve and the connecting rod to pinch the user. SUMMARY

[0005] The present application aims to provide an anti-pinch type suspension arm and therapeutic instrument to solve the problem that the existing suspension arm is easy to pinch the user in use.

[0006] To solve the above problems, the present application adopts the following technical scheme: an anti-pinch type suspension arm, comprising a connecting seat, a mounting seat, a suspension sleeve and two connecting rods, at least two blocking pieces are connected between the connecting seat and the mounting seat, the blocking pieces are located between the connecting rods and the suspension sleeve; the two blocking pieces form a shielding space, and the rotation range of all connecting rods is located in the shielding space; the gap between the blocking piece and the connecting rod and the gap between the blocking piece and the suspension sleeve are all less than 4mm.

[0007] The principle of the scheme is that the connecting seat, the mounting seat and the two connecting rods form a parallel four-bar linkage structure, when the connecting rods are pushed to rotate relative to the connecting seat, the two connecting rods rotate synchronously to push the mounting seat to move, so that the height and angle of the mounting seat are adjusted; in the application, at least two blocking pieces are connected between the connecting seat and the mounting seat, the two blocking pieces form a shielding space, and the rotation range of the two connecting rods is controlled in the shielding space, so that during the use of the hovering arm, no matter how the two connecting rods rotate, the user's limbs will not be pinched by the connecting rods, and the gap between the blocking piece and the connecting rod is less than 4mm, which meets the safety distance; at the same time, the blocking piece in the application is located between the connecting rod and the hovering sleeve, when the connecting rod rotates to drive the hovering sleeve to rotate, the hovering sleeve will not rotate out of the blocking piece, and the gap between the blocking piece and the hovering sleeve is also less than 4mm, which can ensure safe use, more importantly, since the blocking piece is located between the connecting rod and the hovering sleeve, when the hovering sleeve rotates relative to the connecting rod to change the angle between the connecting rod and the hovering sleeve, the user's limbs cannot extend into the angle space formed by the connecting rod and the hovering sleeve due to the isolation and blocking of the blocking piece, so that the possibility of the user being pinched is completely avoided.

[0008] The beneficial effects of the scheme are:

[0009] 1. The two connecting rods will not pinch people: compared with the situation that the user's limbs may be pinched by the two connecting rods when the connecting rods rotate in the prior art, the blocking pieces in the application form a shielding space, which can prevent the user's limbs from extending between the two connecting rods and being pinched, and the gap between the blocking piece and the connecting rod is less than 4mm, which meets the distance for safe use.

[0010] 2. The connecting rod and the hovering sleeve will not pinch people: in the application, since the blocking piece is located between the connecting rod and the hovering sleeve, no matter the relative rotation state between the hovering sleeve and the connecting rod, the blocking piece can shield the angle space formed between the connecting rod and the hovering sleeve, so that the user's limbs cannot extend between the connecting rod and the hovering sleeve and be pinched.

[0011] 3. Simple structure and good appearance: in the application, only two blocking pieces are arranged between the connecting seat and the mounting seat, which can shield and protect the two connecting rods and the connecting rod and the hovering sleeve at the same time, the structure is simple, the processing cost is low, and the two blocking pieces are located between the connecting rod and the hovering sleeve, which does not greatly affect the appearance of the original structure, and is beneficial to maintaining the appearance of the original structure.

[0012] 4. Convenient installation and maintenance: the suspension arm in the prior art relies on the elastic force of the suspension spring and the friction between the friction pairs to achieve suspension. After repeated height adjustment and use for a period of time, the friction between the friction pairs may deteriorate, and the suspension spring may also fatigue, etc. Therefore, the components in the suspension sleeve need to be repaired and replaced. In the present application, the blocking piece is located between the connecting rods and the suspension sleeve, and the two connecting rods are located between the two blocking pieces. Therefore, the suspension sleeve is located at the outermost side, which is very convenient for the installation and maintenance replacement of the suspension sleeve.

[0013] Preferably, as an improvement, the blocking piece is fixedly connected to any one of the connecting rods.

[0014] In the present scheme, the blocking piece is fixedly connected to any one of the connecting rods. During the rotation of the connecting rods, the positions of the two blocking pieces relative to the one connecting rod remain unchanged. When the other connecting rod rotates and moves relative to the blocking piece, it is always located in the shielding space formed by the two blocking pieces. The structure is simple, and the installation of the blocking piece is very simple.

[0015] Preferably, as an improvement, one end of the blocking piece is rotatably connected to the connecting seat, the other end is rotatably connected to the mounting seat, the line between the two rotatable connecting points of the blocking piece and the connecting seat and the mounting seat is parallel to the connecting rod, and the distance between the two rotatable connecting points of the blocking piece and the connecting seat and the mounting seat is equal to the distance between the connecting rod and the rotatable connecting points of the connecting seat and the mounting seat.

[0016] In the present scheme, since the two connecting rods are parallel to each other, when the two ends of the blocking piece are rotatably connected to the connecting seat and the mounting seat, it is only necessary to ensure that the line between the two rotatable connecting points of the blocking piece is parallel to the connecting rod, and the distance between the two rotatable connecting points of the blocking piece and the connecting seat and the mounting seat is equal to the distance between the connecting rod and the rotatable connecting points of the connecting seat and the mounting seat. When the connecting rod rotates relative to the connecting seat and the mounting seat, the blocking piece can rotate synchronously with the connecting rod, avoiding the situation that the structure is stuck due to the connection of the blocking piece.

[0017] Preferably, as an improvement, the blocking piece is a partition plate, and a shielding plate is connected between the two partition plates. The connecting rod is located in the space surrounded by the two partition plates and the shielding plate.

[0018] In the present scheme, the shielding plate is connected between the two partition plates. On the one hand, the shielding plate is located between the two partition plates, which is conducive to keeping the distance between the two partition plates stable, so that the connecting rod can stably rotate in the shielding space. On the other hand, by providing the shielding plate, the situation that foreign matter falls into the shielding space can be reduced, further improving the stability of the connecting rod rotating in the shielding space.

[0019] Preferably, as an improvement, the two partition plates and the shielding plate are integrally formed.

[0020] In the scheme, the two partitions and the shielding plate are integrally formed, which is convenient to process and the connection between the partition and the shielding plate is stable, so that the stability of the whole shielding structure is stronger.

[0021] The therapeutic instrument comprises at least two groups of the anti-pinch suspension arms.

[0022] In the scheme, at least two groups of the anti-pinch suspension arms are arranged in the therapeutic instrument, and the adjacent anti-pinch suspension arms are connected through the connecting seat, so that the multiple groups of the anti-pinch suspension arms are connected in sequence to form multiple stages of adjustment, which facilitates the adjustment of the mounting seat to a larger height and increases the adjustment range.

[0023] Preferably, as an improvement, the connecting seat is connected with a limiting piece for controlling the rotation range of the connecting rod, and the gap between any connecting rod in one group of the anti-pinch suspension arms and any connecting rod in the adjacent anti-pinch suspension arm is greater than 25 mm.

[0024] In the scheme, the rotation range of the connecting rod is controlled by the limiting piece, so that the minimum gap between the connecting rods of the adjacent anti-pinch suspension arms during rotation is greater than 25 mm, thereby avoiding the situation that the gap between the connecting rods of the adjacent anti-pinch suspension arms is less than 25 mm during rotation, which may pinch the user.

[0025] Preferably, as an improvement, the connecting seat comprises two mounting plates arranged opposite to each other, a pin shaft is connected between the two mounting plates, and the connecting rod is rotationally connected to the pin shaft; and the limiting piece comprises a blocking plate connected to the mounting plate.

[0026] In the scheme, the pin shaft is arranged between the two mounting plates arranged opposite to each other, and the connecting rod is rotationally connected to the pin shaft, so that the two mounting plates block and protect the two sides of the connecting rod, which is conducive to the stable rotation of the connecting rod; and the blocking plate is connected to the mounting plate, and the rotation range of the connecting rod is controlled by the blocking plate, which is simple in structure and convenient to process.

[0027] Preferably, as an improvement, the side surface of the partition is provided with a reinforcing rib.

[0028] In the scheme, the reinforcing rib is arranged on the side surface of the partition, which is conducive to improving the strength of the partition and reducing the deformation of the partition during use to hinder the rotation of the connecting rod.

[0029] Preferably, as an improvement, the blocking plate is integrally formed on the mounting plate.

[0030] In the scheme, the blocking plate is integrally formed on the mounting plate, which is simple to process and low in cost. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 Figure is a schematic diagram of a kind of anti-pinch type hovering arm in embodiment one of the present application.

[0032] Figure 2 Figure is Figure 1 Figure is an exploded view in the present application.

[0033] Figure 3 Figure is a schematic diagram of a kind of therapeutic instrument in embodiment one of the present application.

[0034] Figure 4 Figure is a schematic diagram of two anti-pinch type hovering arms in embodiment one of the present application rotate to the state of mutual approach.

[0035] Figure 5 Figure is a schematic diagram of a kind of anti-pinch type hovering arm in embodiment two of the present application.

[0036] Figure 6 Figure is a schematic diagram of the partition in embodiment four of the present application.

[0037] The following is further detailed by specific embodiments:

[0038] The reference signs in the drawings of the specification include: connecting seat 1, mounting plate 101, mounting seat 2, hovering sleeve 3, connecting rod 4, partition 5, blocking plate 6, shielding plate 7, reinforcing rib 8.

[0039] Embodiment one

[0040] The embodiment one is basically as shown in the accompanying Figure 1 Figure is a kind of anti-pinch type hovering arm, including connecting seat 1, mounting seat 2, hovering sleeve 3 and two connecting rods 4 rotationally connected between connecting seat 1 and mounting seat 2, two connecting rods 4 are arranged in parallel and located in the same vertical plane, and connecting rod 4 is profiled material with square cross section;The number of hovering sleeve 3 is two and two hovering sleeves 3 are located on the front and rear sides of connecting rod 4, one end of hovering sleeve 3 is rotationally connected to connecting seat 1 by pin shaft, the other end is rotationally connected to the side wall of connecting rod 4 by pin shaft, the internal structure of hovering sleeve 3 is similar to the hovering sleeve structure disclosed in the prior art with publication number CN112089987A (the same number of components and assembly method, the same size or proportional increase or decrease), which will not be repeated here.

[0041] The connecting seat 1 comprises two mounting plates 101 arranged opposite to each other, and a pin shaft is fixedly connected between the two mounting plates 101 through a nut, the left end of the connecting rod 4 is provided with a matching hole matched with the pin shaft, so that the left end of the connecting rod 4 can rotate along the pin shaft on the connecting seat 1; similarly, the mounting seat 2 is also fixedly connected with a pin shaft through a nut, and the right end of the connecting rod 4 is provided with a matching hole matched with the pin shaft, so that the right end of the connecting rod 4 can rotate along the pin shaft on the mounting seat 2, the lengths of the two connecting rods 4 are equal, so that the connecting seat 1, the mounting seat 2 and the two connecting rods 4 form a parallel four-bar linkage structure, it should be noted that in other embodiments except the present embodiment, the connecting seat 1 and the mounting seat 2 can also adopt a rod-shaped structure similar to the connecting rod 4 or other shape structures, and the specific structure shape will not be described here.

[0042] In combination Figure 1 and Figure 2 At least two blocking pieces are connected between the connecting seat 1 and the mounting seat 2, in the present embodiment, the blocking pieces are two baffle plates 5, and the two baffle plates 5 are respectively located on the front and rear sides of the connecting rod 4 to form a shielding space, the rotation ranges of the two connecting rods 4 are both located in the shielding space, and the shielding space is used to shield and protect the rotation of the connecting rod 4; at the same time, the baffle plate 5 is located between the connecting rod 4 and the hovering sleeve 3, the baffle plate 5 and the side surface of the connecting rod 4 are parallel to each other, and the gap between the baffle plate 5 and the side surface of the connecting rod 4 is less than 4 mm, and the gap between the baffle plate 5 and the hovering sleeve 3 is also less than 4 mm, in the present embodiment, the gap between the baffle plate 5 and the side surface of the connecting rod 4 is 2.5 mm, and the gap between the baffle plate 5 and the hovering sleeve 3 is also 2.5 mm, so that the gaps between the baffle plate 5 and the connecting rod 4 and between the baffle plate 5 and the hovering sleeve 3 are small, but the relative movement or rotation between the baffle plate 5 and the connecting rod 4 and the hovering sleeve 3 is not affected.

[0043] The two partition plates 5 are fixed on the front and rear sidewalls of the same connecting rod 4, and the position of the partition plate 5 is fixed relative to the connecting rod 4. When the two connecting rods 4 rotate relative to the connecting base 1 and move close to or away from each other, the partition plate 5 is always located in the shielding space formed by the two partition plates 5, thereby avoiding the user's limbs from being pinched when the user's limbs extend between the two connecting rods 4. In addition, the partition plate 5 is arranged between the connecting rod 4 and the hovering sleeve 3, so that the user's limbs cannot extend into the space formed by the hovering sleeve 3 and the connecting rod 4 to be pinched. Therefore, the hovering arm structure in the embodiment can effectively prevent the user from being pinched. In addition, the safety protection components of the entire hovering arm are only composed of two partition plates 5, and the structure is very simple and easy to install. The hovering sleeve 3 is located outside the partition plate 5 and is exposed. When the hovering sleeve 3 needs to be repaired and replaced after being used for a period of time, the hovering sleeve 3 can be disassembled without disassembling the partition plate 5, which is very convenient to operate.

[0044] As shown in Figure 3 and Figure 4 , a therapeutic instrument, such as a specific electromagnetic wave therapeutic instrument, includes at least two groups of the above-mentioned anti-pinch hovering arms. In the embodiment, the number of anti-pinch hovering arms is two, and the two anti-pinch hovering arms are connected by the same connecting base 1. Since the anti-pinch hovering arms need to be connected with other components of the therapeutic instrument, one end of the two anti-pinch hovering arms is connected with the mounting base 2, and the other end is connected with the connecting base 1. The mounting base 2 is used to connect with the adjusting object (such as the treatment lamp of the specific electromagnetic wave therapeutic instrument or the display screen of the medical equipment) in the prior art. The connecting base 1 at the end is connected with the support structure of the therapeutic instrument. By pushing the connecting rod 4 to rotate, the height and angle of the mounting base 2 can be adjusted, thereby completing the adjustment of the adjusting object. After adjustment, the hovering sleeve 3 can keep the position of the mounting base 2 and the adjusting object, thereby realizing hovering at any position.

[0045] As shown in Figure 3As shown, a limiting member for controlling the rotation range of the connecting rod 4 is connected to the connecting seat 1 between the two anti-pinch suspension arms, so that the gap between any connecting rod 4 in one set of anti-pinch suspension arms and any connecting rod 4 in the adjacent anti-pinch suspension arm is greater than 25mm. In this embodiment, the limiting member is a blocking plate 6 integrally formed on the mounting plate 101 by bending, and the length of the blocking plate 6 is greater than 25mm. For example, in this embodiment, the length of the blocking plate 6 is equal to 26mm, so that when the connecting rods 4 in the two adjacent sets of anti-pinch suspension arms rotate to abut against the blocking plate 6 (i.e., ... Figure 4 state, Figure 4 The suspension sleeve 3 on the front side of the anti-pinch type suspension arm located on the upper side has been hidden. The gap between the two connecting rods 4 is 26mm, which meets the safe operating distance, thereby preventing the connecting rods 4 in adjacent anti-pinch type suspension arms from being too close during rotation and pinching the user.

[0046] Example 2

[0047] The difference between Example 2 and Example 1 is as follows: Figure 5 As shown in this embodiment, for the same set of anti-pinch hovering arms, a baffle plate 7 is connected between the two partitions 5, so that the connecting rod 4 is located in the space enclosed by the two partitions 5 and the baffle plate 7. Specifically, a stainless steel plate can be directly bent into a U-shape, with the two facing panels serving as partitions 5 and the middle connecting part serving as the baffle plate 7. Alternatively, the baffle plate 7 can be welded to one of the partitions 5 or fixed to both partitions 5 simultaneously using screws or welding, so that a stable connection is formed between the baffle plate 7 and the partitions 5.

[0048] In this embodiment, by setting the baffle plate 7, the connection between the two partition plates 5 is made more stable, thereby ensuring that a stable-sized baffle space is formed between the two partition plates 5 so that the connecting rod 4 can rotate smoothly in the baffle space; at the same time, the baffle plate 7 can also reduce the risk of foreign objects falling into the baffle space, further improving the stability of the connecting rod 4 rotating in the baffle space.

[0049] Example 3

[0050] The difference between Embodiment 3 and Embodiment 1 is as follows: In Embodiment 1, the partition 5 is fixedly connected to the side wall of one of the connecting rods 4 by screws. In this embodiment, the two ends of the partition 5 are connected to the connecting seat 1 and the mounting seat 2 respectively. Specifically, the connecting seat 1 and the mounting seat 2 are respectively threaded with shoulder screws. The partition 5 has holes that mate with the shoulder screws. The smooth section of the shoulder screw rotates with the partition 5. The line connecting the two shoulder screws is parallel to the connecting rod 4, and the distance between the two shoulder screws is equal to the distance between the connecting rod 4 and the rotation connection point of the connecting seat 1 and the mounting seat 2.

[0051] In this embodiment, the partition 5 is rotatably connected between the connecting seat 1 and the mounting seat 2. When the connecting rod 4 rotates relative to the connecting seat 1 and the mounting seat 2, the shielding space formed between the two partitions 5 can also shield and protect the connecting rod 4. Since the connecting seat 1 and the mounting seat 2 are relatively thick, it is convenient to fix and disassemble the shoulder screws, so that the partition 5 can be more stably connected to the connecting seat 1 and the mounting seat 2.

[0052] Example 4

[0053] The difference between Example 4 and Example 3 is as follows: Figure 6 As shown, a reinforcing rib 8 is integrally formed on the side of the partition 5 to enhance the strength of the partition 5 and reduce the situation where the partition 5 deforms during use and obstructs the rotation of the connecting rod 4. In this embodiment, the reinforcing rib 8 is set on the inner side of the partition 5 (i.e. the side facing the connecting rod 4), so that the outer side of the partition 5 is planar, which helps to maintain the aesthetics of the entire structure.

[0054] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A pinch-resistant hovering arm, comprising a connecting seat, a mounting seat, a hovering sleeve, and two connecting rods rotatably connected between the connecting seat and the mounting seat, the two connecting rods being arranged parallel to each other and located in the same vertical plane, one end of the hovering sleeve being rotatably connected to the connecting seat, and the other end being rotatably connected to the side wall of the connecting rod, characterized in that: At least two blocking members are connected between the connecting seat and the mounting seat, and the blocking members are located between the connecting rod and the hovering sleeve; the two blocking members form a shielding space, and all rotation ranges of the connecting rod are within the shielding space; the gaps between the blocking members and the connecting rod, and between the blocking members and the hovering sleeve, are all less than 4mm; one end of the blocking member is rotatably connected to the connecting seat, and the other end is rotatably connected to the mounting seat; the line connecting the blocking member to the two rotational connection points of the connecting seat and the mounting seat is parallel to the connecting rod, and the distance between the blocking member and the two rotational connection points of the connecting seat and the mounting seat is equal to the distance between the connecting rod and the rotational connection points of the connecting seat and the mounting seat.

2. The anti-pinch suspension arm according to claim 1, characterized in that: The blocking component is fixedly connected to any one of the connecting rods.

3. The anti-pinch suspension arm according to claim 1, characterized in that: The blocking component is a partition, and a shield is connected between the two partitions. The connecting rod is located within the space enclosed by the two partitions and the shield.

4. The anti-pinch suspension arm according to claim 3, characterized in that: The two partitions and the shield are molded as one piece.

5. The anti-pinch suspension arm according to claim 3, characterized in that: The side of the partition is provided with reinforcing ribs.

6. A therapeutic device, characterized in that: It includes at least two sets of anti-pinch hovering arms as described in any one of claims 1-5, with adjacent anti-pinch hovering arms connected by a connecting seat.

7. A therapeutic device according to claim 6, characterized in that: The connecting seat is connected to a limiting member for controlling the rotation range of the connecting rod, wherein the gap between any connecting rod in a set of anti-pinch suspension arms and any connecting rod in an adjacent anti-pinch suspension arm is greater than 25mm.

8. A therapeutic device according to claim 7, characterized in that: The connecting seat includes two mounting plates facing each other, with a pin connecting the two mounting plates, and a connecting rod rotatably connected to the pin; the limiting member includes a blocking plate connected to the mounting plate.

9. A therapeutic device according to claim 8, characterized in that: The baffle plate is integrally formed on the mounting plate.

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