ERCP anti-falling device

Abstract

The utility model discloses an ERCP anti-falling bed device which is characterized in that a moving mechanism is arranged at the bottom of a bed body, anti-falling guardrails are arranged on the two sides of the bed body respectively, each anti-falling guardrail comprises a fixed cross beam and a rotating fence rotationally installed on the fixed cross beam, the fixed cross beam is fixedly installed on the bed body, and the rotating fence is fixedly installed on the bed body. The rotating fence rotates on the fixed cross beam and has a storage state and a protection state, the rotation limiting mechanism is arranged between the fixed cross beam and the rotating fence and comprises a rotating connecting piece and a limiting piece for limiting the rotating direction of the rotating connecting piece, and a rotating adjusting piece is arranged on the limiting piece; the limiting piece is driven by the rotation adjusting piece to have a preset first working state and a preset second working state. According to the ERCP anti-falling bed device, the rotating fence can be locked in the protection state through the rotation limiting mechanism, a patient cannot adjust and switch the state of the rotating fence by himself / herself, and the situation that the rotating fence is switched from the protection state to the storage state accidentally is avoided.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an ERCP anti-fall bed device. Background Technology

[0002] Endoscopic retrograde cholangiopancreatography (ERCP) involves inserting a duodenoscope into the descending duodenum, locating the duodenal papilla, and inserting a contrast catheter through the biopsy channel to the papilla opening. Contrast medium is injected, followed by X-ray imaging to visualize the pancreatic and biliary ducts. Because ERCP is non-invasive, minimally invasive, has a short operation time, fewer complications than surgical procedures, and significantly shorter hospital stays, it is very popular with patients. In just a few decades, ERCP has achieved tremendous success in clinical practice and has become an important treatment method for pancreatic and biliary diseases.

[0003] During ERCP surgery, patients are typically placed in a prone or lateral decubitus position. The duodenoscope is inserted orally through the esophagus and stomach into the descending duodenum to locate the duodenal papilla. Current ERCP surgeries are generally performed on an operating table or examination table. For example, the utility model patent application with authorization publication number CN212880042U, authorization publication date April 6, 2021, entitled "A Pillow and Bed Structure Suitable for ERCP Surgery," describes a procedure where the patient lies on the bed with their head resting on a headrest located on the bed, adjusting their posture. After the posture is adjusted, the pads located on both sides of the patient's body are moved towards the patient, so that the two pads contact the patient's sides. Then, the position of the pads is limited by a limiting device. However, current ERCP surgery beds do not have anti-fall devices, posing a risk of the patient falling off the bed during the procedure. Utility Model Content

[0004] The purpose of this invention is to provide an ERCP bed fall prevention device to address the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An ERCP fall-prevention bed device includes a bed frame, a moving mechanism at the bottom of the bed frame, and fall-prevention guardrails on both sides of the bed frame. Each fall-prevention guardrail includes a fixed crossbeam and a rotating rail rotatably mounted on the fixed crossbeam. The fixed crossbeam is fixedly mounted on the bed frame, and the rotating rail rotates on the fixed crossbeam to have a stowed state and a protective state.

[0007] It also includes a rotation limiting mechanism disposed between the fixed crossbeam and the rotating rail. The rotation limiting mechanism includes a rotation connector and a limiting member that limits the rotation direction of the rotation connector. The limiting member is provided with a rotation adjusting member. The limiting member is driven by the rotation adjusting member and has a preset first working state and a second working state. In the first working state, the rotating rail is restricted from moving from the protected state to the stored state.

[0008] The aforementioned ERCP fall arrestor includes a rotating rail comprising a left vertical bar, a right vertical bar, and a crossbar disposed between the left and right vertical bars. There are at least two crossbars, and the two ends of the crossbars are rotatably connected to the left and right vertical bars, respectively.

[0009] In the aforementioned ERCP fall-prevention bed device, the bottom of the left and right vertical rods is provided with a rotating shaft, and the fixed crossbeam is provided with a rotating connection part, and the rotating shaft is connected to the rotating connection part.

[0010] The aforementioned ERCP fall arrestor bed device also includes an operating panel on the right vertical rod, with an opening slot for hand operation on the operating panel.

[0011] In the aforementioned ERCP fall arrestor, a rotation blocking component is also provided at the end of the fixed crossbeam. The rotation blocking component is located on the rotation stroke of the left vertical rod. When the left vertical rod rotates to the protective state, the rotation blocking component abuts against the left vertical rod.

[0012] The aforementioned ERCP fall-prevention bed device, the rotation limiting mechanism further includes the elliptical seat, the fixed crossbeam is provided with an mounting plate for mounting the elliptical seat, and the elliptical seat is provided with a connected first circular cavity and a second circular cavity.

[0013] In the aforementioned ERCP fall arrestor, the rotating connector includes a rotating ratchet rotatably mounted in the first circular cavity, and the rotating ratchet is connected to the rotating shaft of the left vertical rod.

[0014] The aforementioned ERCP fall arrestor includes a limiting end and a limiting end. The rotating end is rotatably mounted on the end of the second circular cavity away from the first circular cavity, and the limiting end is provided with ratchet teeth.

[0015] The aforementioned ERCP fall protection device has two limiting components, which are installed in an inverted V-shape inside the second circular cavity. Each limiting component has a spring component on one side.

[0016] The aforementioned ERCP fall arrestor includes a fan-shaped adjusting body, which comprises two radial surfaces and an arc-shaped limiting surface disposed between the two radial surfaces. A rotating operating shaft is provided on the fan-shaped adjusting body, and a mounting hole is provided on the elliptical seat for the rotating operating shaft to pass through. An operating button is connected to the end of the rotating operating shaft extending from the mounting hole.

[0017] In the above technical solution, the ERCP fall prevention bed device provided by this utility model embodiment includes a bed body and a rotation limiting mechanism. A moving mechanism is provided at the bottom of the bed body, and fall prevention guardrails are provided on both sides of the bed body. The fall prevention guardrails include a fixed crossbeam and a rotating rail rotatably mounted on the fixed crossbeam. A rotation limiting mechanism is provided between the fixed crossbeam and the rotating rail. The rotation limiting mechanism includes a rotating connector and a limiting member that limits the rotation direction of the rotating connector. During use, when the rotating rail is in the protective state, the limiting member can be placed in the limiting state by rotating the adjusting member. In this way, the rotating rail can be locked in the protective state, and the patient cannot adjust or switch the state of the rotating rail by himself, and there will be no situation where the rotating rail is accidentally switched from the protective state to the stored state. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 One of the structural schematic diagrams of the ERCP fall-prevention bed device provided in this embodiment of the utility model;

[0020] Figure 2 A second schematic diagram of the ERCP fall arrestor provided in this embodiment of the present invention;

[0021] Figure 3 One of the structural schematic diagrams of the fall arrestor in the protected state provided in the embodiments of this utility model;

[0022] Figure 4 The second schematic diagram of the fall arrestor in the protective state provided in this embodiment of the utility model;

[0023] Figure 5 A schematic diagram of the structure of the fall arrestor in its stored state according to an embodiment of this utility model;

[0024] Figure 6 This is a schematic diagram of the rotation limiting mechanism provided in an embodiment of the present utility model;

[0025] Figure 7 One of the internal structural schematic diagrams of the rotation limiting mechanism provided in the embodiments of this utility model;

[0026] Figure 8 This is the second schematic diagram of the internal structure of the rotation limiting mechanism provided in the embodiment of this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Bed frame; 11. Moving mechanism; 2. Fall protection railing; 21. Fixed crossbeam; 22. Rotating rail; 23. Left vertical bar; 24. Right vertical bar; 25. Crossbar; 26. Rotating shaft; 27. Rotating connection part; 28. Control panel; 280. Opening slot; 29. ​​Rotation blocking part; 3. Rotation limiting mechanism; 31. Rotation connecting part; 32. Limiting part; 320. Rotating end; 321. Limiting end; 322. Ratchet; 323. Spring part; 33. Rotation adjusting part; 330. Fan-shaped adjusting body; 331. Arc-shaped limiting surface; 332. Radial surface; 34. Mounting plate; 35. Elliptical seat; 350. First circular cavity; 351. Second circular cavity; 36. Rotating ratchet; 37. Rotating operating shaft; 38. Operating button. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0030] like Figure 1-8 As shown, this utility model embodiment provides an ERCP fall-prevention bed device, including a bed body 1 and a rotation limiting mechanism 3. A moving mechanism 11 is provided at the bottom of the bed body 1, and fall-prevention guardrails 2 are respectively provided on both sides of the bed body 1. The fall-prevention guardrails 2 include a fixed crossbeam 21 and a rotating rail 22 rotatably mounted on the fixed crossbeam 21. The fixed crossbeam 21 is fixedly mounted on the bed body 1, and the rotating rail 22 rotates on the fixed crossbeam 21 to have a retracted state and a protected state. The rotation limiting mechanism 3 is provided between the fixed crossbeam 21 and the rotating rail 22. The rotation limiting mechanism 3 includes a rotating connector 31 and a limiting member 32 that limits the rotation direction of the rotating connector 31. A rotation adjusting member 33 is provided on the limiting member 32. The limiting member 32 is driven by the rotation adjusting member 33 and has a preset first working state and a second working state. In the first working state, the rotating rail 22 is restricted from moving from the protected state to the retracted state.

[0031] Specifically, the bed 1 is used for patients to lie prone or on their side during ERCP surgery. The bed 1 is also equipped with a mattress and pillow to maintain the patient's posture, which is existing technology and will not be described in detail. A moving mechanism 11 is provided at the bottom of the bed 1. The moving mechanism 11 includes a roller assembly. Fall protection rails 2 are provided on both sides of the bed 1. The fall protection rails 2 are movable and adjustable. The fall protection rails 2 include a fixed crossbeam 21 fixedly installed on one side of the bed 1. The fixed crossbeam 21 is set along the length of the bed 1. A rotating rail 22 is rotatably installed on the fixed crossbeam 21. The rotating rail 22 has two states: a retracted state and a protective state. In use, the rotating rail 22 can be folded up to the retracted state as needed. When it is necessary to protect the patient, the rotating rail 22 is extended to the protective state and fixed to the side of the bed 1. At this time, the rotating rail 22 can protect the patient on the bed 1 and prevent the patient from falling off the bed 1.

[0032] In this embodiment, to prevent the rotating bar 22 from being switched from the protective state to the stored state by itself or accidentally during actual use, a rotation limiting mechanism 3 is also provided between the fixed crossbeam 21 and the rotating bar 22. The rotation limiting mechanism 3 includes a rotating connector 31 and a limiting member 32. The rotating bar 22 is rotatably mounted on the fixed crossbeam 21 through the rotating connector 31. The rotating bar 22 can switch between the protective state and the stored state by rotating through the rotating connector 31. The limiting member 32 can be a ratchet 322 component. A rotation adjusting member 33 is connected to the limiting member 32. The following functions are achieved through the limiting member 32 and the rotation adjusting member 33: the operator can control the rotation... The operation of the adjusting member 33 allows the limiting member 32 to switch between two preset working states. When the limiting member 32 is in the first working state, it restricts the first rotation direction of the rotating connecting member 31, so that the rotating connecting member 31 can only rotate from the stored state to the protected state, but cannot rotate from the protected state to the stored state. Conversely, when the limiting member 32 is in the second working state, it restricts the second rotation direction of the rotating connecting member 31, so that the rotating connecting member 31 can only rotate from the protected state to the stored state, but cannot rotate from the stored state to the protected state.

[0033] In this way, when the rotating bar 22 is in the protective state during use, the limiting member 32 is put into the first working state by rotating the adjusting member 33. This locks the rotating bar 22 in the protective state, and the patient cannot adjust or switch the state of the rotating bar 22 on their own, and there will be no situation where the rotating bar 22 is accidentally switched from the protective state to the storage state.

[0034] This utility model provides an ERCP fall prevention bed device, including a bed body 1 and a rotation limiting mechanism 3. A moving mechanism 11 is provided at the bottom of the bed body 1, and fall prevention guardrails 2 are respectively provided on both sides of the bed body 1. The fall prevention guardrails 2 include a fixed crossbeam 21 and a rotating rail 22 rotatably mounted on the fixed crossbeam 21. A rotation limiting mechanism 3 is provided between the fixed crossbeam 21 and the rotating rail 22. The rotation limiting mechanism 3 includes a rotating connector 31 and a limiting member 32 that limits the rotation direction of the rotating connector 31. During use, when the rotating rail 22 is in the protective state, the limiting member 32 can be placed in the limiting state by rotating the adjusting member 33. In this way, the rotating rail 22 can be locked in the protective state, and the patient cannot adjust or switch the state of the rotating rail 22 by himself, and there will be no accidental switching of the rotating rail 22 from the protective state to the stored state.

[0035] In this embodiment, preferably, the rotating bar 22 includes a left vertical bar 23, a right vertical bar 24, and a horizontal bar 25 disposed between the left vertical bar 23 and the right vertical bar 24. There are at least two horizontal bars 25, specifically two, three, or more. The two ends of the horizontal bar 25 are rotatably connected to the left vertical bar 23 and the right vertical bar 24, respectively. The horizontal bars 25 are parallel to each other and to the fixed crossbeam 21, and the distance between the horizontal bars 25 is the same. When the rotating bar 22 is rotated to the protective state, the left vertical bar 23 and the right vertical bar 24 are both perpendicular to the fixed crossbeam 21, and the distance between the horizontal bars 25 is the largest at this time. When the rotating bar 22 is rotated to the stored state, the left vertical bar 23 and the right vertical bar 24 are kept in an inclined state with the fixed crossbeam 21, and the distance between the horizontal bars 25 is the smallest at this time.

[0036] In this embodiment, preferably, the bottom of both the left vertical rod 23 and the right vertical rod 24 are provided with a rotating shaft 26, and the fixed crossbeam 21 is provided with a rotating connecting part 27. The rotating shaft 26 is connected to the rotating connecting part 27. The rotating connecting part 27 can be a rotating mounting hole. The rotating shaft 26 is rotatably installed in the rotating mounting hole. In use, the rotating shaft 26 rotates in the rotating connecting part 27, thereby switching the rotating rail 22 between the protective state and the storage state.

[0037] In this embodiment, preferably, an operation plate 28 is also provided on the right vertical rod 24. The operation plate 28 is provided with an opening slot 280 for hand operation. The operation plate 28 and the right vertical rod 24 can be integrated. In use, the operator can rotate the rotating bar 22 by holding the opening slot 280 with their hand.

[0038] In this embodiment, preferably, a rotation blocking member 29 is also provided at the end of the fixed crossbeam 21. The rotation blocking member 29 is located on the rotation stroke of the left vertical rod 23. When the left vertical rod 23 rotates to the protective state, the rotation blocking member 29 abuts against the left vertical rod 23. When the left vertical rod 23 and the right vertical rod 24 rotate to a state perpendicular to the fixed crossbeam 21, the rotation blocking member 29 blocks and fixes the left vertical rod 23, thereby preventing the left vertical rod 23 from continuing to rotate. At the same time, a positioning member can also be provided on the rotation blocking member 29, such as a first magnetic attracting member on the rotation blocking member 29 and a second magnetic attracting member on the left vertical rod 23. The first magnetic attracting member and the second magnetic attracting member have different magnetic properties. Thus, when the left vertical rod 23 rotates to a state perpendicular to the fixed crossbeam 21, the first magnetic attracting member and the second magnetic attracting member attract each other, thereby making the left vertical rod 23 and the rotation blocking member 29 attract together.

[0039] In this embodiment, preferably, the rotation limiting mechanism 3 further includes an elliptical seat 35. A mounting plate 34 for mounting the elliptical seat 35 is provided on the fixed crossbeam 21. The mounting plate 34 is fixedly mounted on the fixed crossbeam 21. The elliptical seat 35 and the mounting plate 34 can be an integral structure or a separate structure. The elliptical seat 35 is provided with a first circular cavity 350 and a second circular cavity 351 connected together. The rotating connector 31 includes a rotating ratchet 36 rotatably mounted in the first circular cavity 350. The rotating ratchet 36 is connected to the rotating shaft 26 of the left vertical rod 23. A coaxial through hole is provided on the first circular cavity 350 and the mounting plate 34. The rotating shaft 26 passes through the through hole and enters the first circular cavity 350 to connect with the rotating ratchet 36.

[0040] In this embodiment, preferably, the limiting member 32 includes a rotating end 320 and a limiting end. The rotating end 320 is rotatably installed at the end of the second circular cavity 351 away from the first circular cavity 350. The limiting end is provided with ratchet teeth 322. The limiting member 32 is strip-shaped. The rotating end 320 of the limiting member 32 is rotatably installed in the first circular cavity 350 through a connecting shaft. There can be two or more ratchet teeth 322 at the limiting end. The limiting end of the limiting member 32 is provided with a first arc-shaped pressing surface and a second arc-shaped pressing surface on opposite sides.

[0041] In this embodiment, preferably, there are two limiting members 32, which are installed in the second circular cavity 351 in an inverted V-shape. Each limiting member 32 has a spring member 323 on one side. For ease of description, the two limiting members 32 are referred to as the first limiting member 32 and the second limiting member 32, respectively. The rotation adjustment member 33 includes a fan-shaped adjustment body 330, which includes two radial surfaces 332 and an arc-shaped limiting surface 331 disposed between the two radial surfaces 332. A rotation operation shaft 37 is provided on the fan-shaped adjustment body 330. An installation hole for the rotation operation shaft 37 to pass through is provided on the elliptical seat 35. The end of the rotation operation shaft 37 extends out of the installation hole and is connected to an operation button 38. The rotation operation can be driven by the operation button 38, thereby causing the fan-shaped adjustment body 330 to rotate. The fan-shaped adjustment member is driven to rotate and has two working positions: a first working position and a second working position, respectively, so that the first limiting member 32 and the second limiting member 32 each have a first working state and a second working state, respectively.

[0042] The transmission relationship between the sector-shaped adjusting member, the first limiting member 32, and the second limiting member 32 is as follows: When the arc-shaped limiting surface 331 of the sector-shaped adjusting body 330 corresponds to the first limiting member 32, the sector-shaped adjusting body 330 is in the first working position. The first limiting member 32 is pressed and separated from the rotating ratchet 36, and the spring member 323 connected to the first limiting member 32 is in a compressed state. At this time, the radial surface 332 of the sector-shaped adjusting body 330 corresponds to the second limiting member 32, and the spring member 323 connected to the second limiting member 32 is also in a compressed state. However, the ratchet 322 at the end of the second limiting member 32 engages with the rotating ratchet 36, that is, the first limiting member 32 is in the second working state, and the second limiting member 32 is in the first working state. At this time, when the rotating ratchet 36 rotates in the first rotation direction (clockwise), The tooth groove of the rotating ratchet 36 first contacts the first arc-shaped pressing surface of the second limiting member 32. The tooth groove of the rotating ratchet 36 applies a force perpendicular to the first arc-shaped pressing surface, thereby preventing the second limiting member 32 from rotating. Thus, the tooth groove of the rotating ratchet 36 locks with the first arc-shaped pressing surface, and the rotating ratchet 36 cannot rotate in the first rotation direction. When the rotating ratchet 36 rotates in the second rotation direction (counterclockwise), the tooth groove of the rotating ratchet 36 first contacts the second arc-shaped pressing surface of the second limiting member 32. The tooth groove of the rotating ratchet 36 applies a circumferential rotational force to the first arc-shaped pressing surface, thereby driving the second limiting member 32 to rotate and press against the spring member 323. After the second limiting member 32 rotates, it separates from the rotating ratchet 36, and the rotating ratchet 36 can rotate in the second rotation direction.

[0043] When the arc-shaped limiting surface 331 of the sector-shaped adjusting body 330 corresponds to the second limiting member 32, the second limiting member 32 is pressed and separated from the rotating ratchet 36. At this time, the sector-shaped adjusting body 330 is in the second working position, and the spring member 323 connected to the second limiting member 32 is in a compressed state. At this time, the radial surface 332 of the sector-shaped adjusting body 330 corresponds to the first limiting member 32, and the spring member 323 connected to the first limiting member 32 is also in a compressed state. However, the ratchet 322 at the end of the first limiting member 32 meshes with the rotating ratchet 36, that is, the second limiting member 32 is in the second working state, and the first limiting member 32 is in the first working state. At this time, when the rotating ratchet 36 rotates in the second rotation direction (counterclockwise), the tooth groove of the rotating ratchet 36 first meshes with the first ratchet 36. The first arc-shaped pressing surface of the first limiting member 32 is in contact with the first arc-shaped pressing surface. The tooth groove of the rotating ratchet 36 applies a force perpendicular to the first arc-shaped pressing surface, thereby preventing the second limiting member 32 from rotating. The tooth groove of the rotating ratchet 36 is locked with the first arc-shaped pressing surface, and the rotating ratchet 36 cannot rotate in the second rotation direction. When the rotating ratchet 36 rotates in the first rotation direction (clockwise), the tooth groove of the rotating ratchet 36 first contacts the second arc-shaped pressing surface of the first limiting member 32. The tooth groove of the rotating ratchet 36 applies a circumferential rotational force to the second arc-shaped pressing surface, thereby driving the first limiting member 32 to rotate and press against the spring member 323. After the first limiting member 32 rotates, it separates from the rotating ratchet 36, and the rotating ratchet 36 can rotate in the first rotation direction.

[0044] In use, the rotating bar 22 can be driven to rotate via the operation button 38 according to its usage requirements, thereby causing the fan-shaped adjustment body 330 to rotate and restricting the rotation of the rotating bar 22. For example, when it is necessary to switch the rotating bar 22 from the stored state to the protected state, the fan-shaped adjustment body 330 is rotated to the second working position. The arc-shaped limiting surface 331 of the fan-shaped adjustment body 330 corresponds to the second limiting member 32, and the radial surface 332 of the fan-shaped adjustment body 330 corresponds to the first limiting member 32. The second limiting member 32 is in the second working state, and the first limiting member 32 is in the first working state. The rotating bar 22 and the rotating ratchet 36 can only rotate in the first rotation direction, that is, the rotating bar 22 can only rotate in the first rotation direction. The rotating bar 22 can only rotate from the protected state to the stored state, but cannot rotate from the stored state to the protected state. Conversely, if it is necessary to rotate the rotating bar 22 from the protected state to the stored state, the fan-shaped adjustment body 330 is rotated to the first working position. The arc-shaped limiting surface 331 of the fan-shaped adjustment body 330 corresponds to the first limiting member 32, and the radial surface 332 of the fan-shaped adjustment body 330 corresponds to the second limiting member 32. The first limiting member 32 is in the second working state, and the second limiting member 32 is in the first working state. The rotating bar 22 and the rotating ratchet 36 can only rotate in the second rotation direction. That is, the rotating bar 22 can only rotate from the stored state to the protected state, but cannot rotate from the protected state to the stored state.

[0045] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An ERCP fall-prevention bed device, comprising a bed frame, characterized in that, The bottom of the bed is equipped with a moving mechanism, and the two sides of the bed are respectively equipped with fall protection rails. The fall protection rails include a fixed crossbeam and a rotating rail that is rotatably installed on the fixed crossbeam. The fixed crossbeam is fixedly installed on the bed, and the rotating rail rotates on the fixed crossbeam to have a retracted state and a protective state. It also includes a rotation limiting mechanism disposed between the fixed crossbeam and the rotating rail. The rotation limiting mechanism includes a rotation connector and a limiting member that limits the rotation direction of the rotation connector. The limiting member is provided with a rotation adjusting member. The limiting member is driven by the rotation adjusting member and has a preset first working state and a second working state. In the first working state, the rotating rail is restricted from moving from the protected state to the stored state.

2. The ERCP fall arrestor according to claim 1, characterized in that, The rotating rail includes a left vertical bar, a right vertical bar, and a horizontal bar disposed between the left and right vertical bars. There are at least two horizontal bars, and the two ends of the horizontal bars are rotatably connected to the left and right vertical bars, respectively.

3. The ERCP fall arrestor according to claim 2, characterized in that, The bottom of the left and right vertical rods is provided with a rotating shaft, and the fixed crossbeam is provided with a rotating connection part, and the rotating shaft is connected to the rotating connection part.

4. The ERCP fall arrestor according to claim 3, characterized in that, An operating panel is also provided on the right vertical rod, and the operating panel is provided with an opening slot for hand operation.

5. The ERCP fall arrestor according to claim 4, characterized in that, The fixed crossbeam is also provided with a rotation blocking member at its end. The rotation blocking member is located on the rotation stroke of the left vertical rod. When the left vertical rod rotates to the protective state, the rotation blocking member abuts against the left vertical rod.

6. The ERCP fall arrestor according to claim 5, characterized in that, The rotation limiting mechanism also includes an elliptical seat, and the fixed crossbeam is provided with an mounting plate for mounting the elliptical seat. The elliptical seat has a first circular cavity and a second circular cavity connected to each other.

7. The ERCP fall arrestor according to claim 6, characterized in that, The rotating connector includes a rotating ratchet rotatably mounted in the first circular cavity, and the rotating ratchet is connected to the rotating shaft of the left vertical rod.

8. The ERCP fall arrestor according to claim 7, characterized in that, The limiting component includes a rotating end and a limiting end. The rotating end is rotatably mounted on the end of the second circular cavity away from the first circular cavity, and the limiting end is provided with ratchet teeth.

9. The ERCP fall arrestor according to claim 8, characterized in that, There are two limiting members, which are installed in the second circular cavity in an inverted V-shape, and each limiting member has a spring on one side.

10. The ERCP fall arrestor according to claim 9, characterized in that, The rotation adjustment component includes a fan-shaped adjustment body, which includes two radial surfaces and an arc-shaped limiting surface disposed between the two radial surfaces. A rotation operation shaft is provided on the fan-shaped adjustment body, and a mounting hole is provided on the elliptical seat for the rotation operation shaft to pass through. An operation button is connected to the end of the rotation operation shaft that extends out of the mounting hole.

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