Hospital ventilation construction wall pipe embedded device

Abstract

This invention relates to the field of medical building ventilation equipment installation technology, and more particularly to a pre-embedded through-wall pipe device for hospital ventilation building construction. The device includes an arc-shaped bracket and mounting brackets; four mounting brackets are symmetrically arranged on the arc-shaped bracket; a rotating shaft I, rotatably arranged between the four mounting brackets; winding wheels, symmetrically arranged on the rotating shaft I, with the winding wheels located inside two adjacent mounting brackets; a rotating mechanism, with one end of the rotating shaft equipped with a rotating mechanism for driving the winding wheels to rotate; and a steel rope. The device is secured to the upper horizontal reinforcing bar by the arc-shaped bracket. The positions of the adjustment mechanism and the limiting mechanism are adjusted by the steel rope. The limiting mechanism adjusts the pre-embedded pipe to a horizontal state, and the adjustment mechanism can bend the reinforcing bar of the clamping plate to make it in close contact with the side wall of the pipe, facilitating welding.

Description

Technical Field

[0001] This invention relates to the field of medical building ventilation equipment installation technology, and in particular to a pre-embedded device for through-wall pipes used in hospital ventilation building construction. Background Technology

[0002] Medical buildings are typically hospital complexes, housing patients, vulnerable populations, accompanying family members, and medical staff in the same location. With high outpatient volume and frequent personnel movement, the air within hospital complexes contains more germs and other pollutants compared to the natural environment, resulting in more polluted air that is detrimental to patient recovery and the health of accompanying personnel. Therefore, it is necessary to consider the characteristics of hospital complexes and their indoor air quality requirements, employing natural or mechanical methods to allow outdoor air to enter the building and expel indoor pollutants or excess heat and humidity, creating a healthy and comfortable indoor environment for hospitals.

[0003] People's demands for the industrialization of medical buildings are also quietly changing. Concepts such as green building, sustainable development, and energy conservation and emission reduction have gradually taken root in people's hearts. Hospital construction requires the pre-embedding of pipes on steel reinforcement frames to facilitate the subsequent establishment of ventilation systems. During the pre-embedding process, the installation angle of the pipes needs to be adjusted, and the joint between the steel reinforcement on both sides and the metal pipes needs to be welded. It is inconvenient for workers to adjust and operate on scaffolds. The steel reinforcement and pipes are not tightly attached, which can easily cause incomplete welds. Cement pouring is prone to impact and falling, resulting in inaccurate installation positions and affecting the establishment of subsequent ventilation systems. Therefore, it is necessary to design a wall-penetrating pipe pre-embedding device for hospital ventilation building construction, which can facilitate the position adjustment of pre-embedded pipes and complete the tight fit between steel reinforcement and pipes, which is conducive to subsequent welding operations. Summary of the Invention

[0004] To overcome the shortcomings of inconvenient adjustment and operation by workers on scaffolding, poor fit between steel bars and pipes leading to incomplete welds, and easy impact and fall of cement during pouring, resulting in inaccurate installation positions and affecting the establishment of subsequent ventilation systems, the technical problem is to provide a wall-penetrating pipe pre-embedded device for hospital ventilation building construction.

[0005] The technical implementation scheme of the present invention is as follows: a pre-embedded device for through-wall pipes in hospital ventilation building construction, comprising an arc-shaped bracket and an installation bracket, with two installation brackets symmetrically arranged on the arc-shaped bracket; a rotating shaft I, which is rotatably arranged between the four installation brackets; winding wheels, which are symmetrically arranged on the rotating shaft I and located inside two adjacent installation brackets; a rotating mechanism, which is provided at one end of the rotating shaft for driving the winding wheels to rotate; steel ropes, with one end of two steel ropes respectively wound on corresponding winding wheels; an installation plate, which is fixedly installed on both sides of the installation plate to the other ends of the two steel ropes; a guide rod I, which is laterally arranged at the two square holes on the installation plate; a clamping plate, which is slidably arranged on the guide rod I; an adjustment mechanism, which is provided in the middle of the installation plate to adjust the position of the two clamping plates; a limiting mechanism, which is provided on the side wall of the installation plate to limit the installation of pipe fittings; and an arc-shaped clamping bracket, which is provided on the side wall of the limiting plate.

[0006] Furthermore, a ring of elastic rubber is provided inside the arc-shaped card holder.

[0007] Furthermore, the rotating mechanism includes: a rotating block I, with a rotating block I installed at one end of the rotating shaft; a U-shaped handle, with a U-shaped handle fixedly installed on the rotating block I; a guide rod I, with a guide rod I slidably installed on the U-shaped handle about the axis of the rotating shaft I, and insertion holes spaced eccentrically around the axis of the rotating shaft I on the side wall of the mounting bracket near the rotating block I, with the guide rod I engaging with the insertion holes; a gripping plate, with a gripping plate slidably installed on the U-shaped handle, and the gripping plate being fixedly connected to the two guide rods I; and an elastic element I, with an elastic element I sleeved on each of the guide rods I.

[0008] Furthermore, the adjustment mechanism includes: a rotating shaft II, which is laterally rotatable in the middle of the mounting plate; a gear, which is located at the end of the rotating shaft II between the two clamping plates; a rack, which is provided on both clamping plates, and the two racks are staggered, with one rack meshing with the upper part of the gear and the other rack meshing with the lower part of the gear; a rotating block II, which is provided at the end of the rotating shaft II away from the gear, and has a handle in the middle; a guide rod II, which is symmetrically slidably provided at the edge of the rotating block II about the handle; an annular retaining ring, which is provided on the mounting plate, and the center of the annular retaining ring coincides with the rotating shaft II; retaining teeth, which are provided at the ends of the guide rods II that are far apart from each other, and the retaining teeth cooperate with the annular retaining ring; an elastic element II, which is provided between the retaining teeth and the rotating block II; and a square block, which is provided at the ends of the guide rods II that are close to each other.

[0009] Furthermore, the limiting mechanism includes: guide sleeves, symmetrically arranged on the side of the mounting plate about the annular retaining ring; a sliding frame, arranged between the guide sleeves; a limiting plate, a limiting plate arranged horizontally at the lower part of the sliding frame, the limiting plate being located below the retaining plate; an N-shaped frame, an N-shaped frame arranged at the center of the upper part of the sliding frame; an insert rod, an insert rod slidably arranged on the N-shaped frame, two insert holes vertically opened at the upper part of the mounting plate, the insert rod cooperating with the insert holes; and elastic element III, an elastic element III arranged between the insert rod and the N-shaped frame.

[0010] Furthermore, it also includes a support mechanism, which includes: a guide rod II, with a square groove on the upper part of the limiting plate, and the guide rod II is symmetrically and slidably arranged in the square groove of the limiting plate; a top plate, with a top plate arranged between the top ends of the two guide rods II, and the top plate is located in the square groove of the limiting plate; and a rotating rod, with a threaded hole in the middle of the square groove of the limiting plate, and the rotating rod is screwed into the threaded hole of the limiting plate by a threaded connection, with the top of the rotating rod rotatably connected to the bottom of the top plate.

[0011] Furthermore, it also includes a fixing mechanism, which includes: a slide, with two slides slidably mounted on the arc-shaped bracket; a pivot III, with a pivot III mounted on each slide; a fixing block, with fixing blocks mounted at both ends of the pivot III; a guide rod III, with a guide rod III mounted on each fixing block; an arc-shaped locking block, with an arc-shaped locking block mounted at one end of each guide rod III facing each other; and an elastic element IV, with an elastic element IV positioned between the arc-shaped locking block and the fixing block.

[0012] Furthermore, it also includes a protective mechanism, which includes: mounting blocks, each mounting frame is equipped with a mounting block; a limiting sleeve, the mounting block is equipped with a limiting sleeve, through which a steel rope passes; and a limiting bushing, the part of the mounting plate where the steel rope is connected is equipped with a limiting bushing, through which the steel rope passes, and the limiting bushing cooperates with the limiting sleeve.

[0013] Furthermore, it also includes: a slot plate, the outer wall of the limiting sleeve is hinged with a slot plate; a protrusion, the outer side of the limiting bushing is provided with a protrusion, the slot plate on the limiting sleeve in the same vertical direction engages with the protrusion on the limiting bushing.

[0014] Furthermore, it also includes: a placement box, which is detachably installed between the lower guide sleeves.

[0015] The beneficial effects are: 1. The arc-shaped bracket is clamped on the horizontal steel bar above. The position of the adjustment mechanism and the limiting mechanism can be adjusted by steel rope. The position of the limiting mechanism can adjust the pre-embedded pipe to a horizontal state. The adjustment mechanism can bend the steel bar of the clamping plate to make it in close contact with the side wall of the pipe, which is conducive to welding.

[0016] 2. By rotating the rotating rod, the rotating rod moves upward against the top plate and fits against the pipe, pushing the front side of the pipe upward, so that the pipe is adjusted to a level state.

[0017] 3. The steel rope is wound up and the limiting bushing can be snapped onto the limiting sleeve rod. The slot plate is snapped down and fastened onto the protrusion to prevent the parts under the steel rope from swinging and damaging the device during movement. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the installation structure of the present invention.

[0019] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 3 This is a three-dimensional structural diagram of the rotating mechanism of the present invention.

[0021] Figure 4 This is a partial exploded structural diagram of the adjusting mechanism of the present invention.

[0022] Figure 5 This is a partial three-dimensional structural schematic diagram of the adjustment mechanism of the present invention.

[0023] Figure 6 This is a schematic diagram of the installation structure of the limiting mechanism of the present invention.

[0024] Figure 7 This is a three-dimensional structural diagram of the support mechanism of the present invention.

[0025] Figure 8 This is a three-dimensional structural diagram of the fixing mechanism of the present invention.

[0026] Figure 9 This is a three-dimensional structural diagram of the protective mechanism of the present invention.

[0027] The components in the attached diagram are labeled as follows: 1. Arc-shaped bracket; 2. Mounting bracket; 3. Rotating shaft I; 4. Winding wheel; 5. Rotating mechanism; 51. Rotating block I; 52. U-shaped handle; 53. Guide rod I; 54. Elastic element I; 55. Grip plate; 6. Steel rope; 7. Mounting plate; 8. Guide rod I; 9. Clamping plate; 10. Adjusting mechanism; 101. Rotating shaft II; 102. Gear; 103. Rack; 104. Rotating block II; 105. Guide rod II; 106. Annular retaining ring; 107. Clamping tooth; 108. Elastic element II; 109. Square block; 11. Limiting mechanism; 111. Guide sleeve. 112. Sliding frame; 113. Limiting plate; 114. N-shaped frame; 115. Insert rod; 116. Elastic element III; 117. Insertion hole; 12. Support mechanism; 121. Guide rod II; 122. Rotating rod; 123. Top plate; 13. Fixing mechanism; 131. Sliding frame; 132. Rotating shaft III; 133. Fixing block; 134. Guide rod III; 135. Arc-shaped locking block; 136. Elastic element IV; 14. Protective mechanism; 141. Mounting block; 142. Limiting sleeve rod; 143. Slot plate; 144. Limiting bushing; 145. Protrusion; 15. Placement box; 16. Arc-shaped locking frame. Detailed Implementation

[0028] References to embodiments herein mean that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0029] Example 1: As Figure 1-2As shown, a pre-embedded device for through-wall pipes in hospital ventilation building construction includes an arc-shaped bracket 1, a mounting bracket 2, a rotating shaft I 3, a winding wheel 4, a rotating mechanism 5, steel ropes 6, a mounting plate 7, a guide rod I 8, a clamping plate 9, an adjusting mechanism 10, a limiting mechanism 11, a placement box 15, and an arc-shaped clamping bracket 16. Four mounting brackets 2 are symmetrically arranged on the arc-shaped bracket 1. A rotating shaft I 3 is rotatably arranged between the four mounting brackets 2. Winding wheels 4 are symmetrically arranged on the rotating shaft I 3, with the winding wheels 4 located within adjacent mounting brackets 2. A rotating mechanism 5 is provided at one end of the rotating shaft to drive the winding wheels 4 to rotate. Two steel ropes 6 are... The ends are respectively wound onto the corresponding winding wheels 4. The two sides of the mounting plate 7 are respectively fixedly installed to the other ends of the two steel ropes 6. Guide rods I8 are horizontally arranged at the two square holes on the mounting plate 7. The guide rods I8 are slidably arranged with clamping plates 9. An adjustment mechanism 10 that can adjust the position of the two clamping plates 9 is provided in the middle of the mounting plate 7. A limiting mechanism 11 that can limit the installation of the pipe fitting is provided on the side wall of the mounting plate 7. An arc-shaped clamping bracket 16 is provided on the side wall of the limiting plate 113. An elastic rubber layer is provided inside the arc-shaped clamping bracket 16. A placement box 15 is detachably arranged between the guide sleeves 111 on the lower side.

[0030] like Figure 1-3 As shown, the rotating mechanism 5 includes a rotating block I51, a U-shaped handle 52, a guide rod I53, an elastic element I54, and a gripping plate 55. The rotating block I51 is located at one end of the rotating shaft. The U-shaped handle 52 is bolted to the rotating block I51. The guide rod I53 is symmetrically and slidably mounted on the U-shaped handle 52 about the axis of the rotating shaft I3. Small holes are eccentrically spaced on the side wall of the mounting bracket 2 near the rotating block I51 with the rotating shaft I3 as the axis. The guide rod I53 mates with the small holes. The gripping plate 55 is slidably mounted on the U-shaped handle 52. The gripping plate 55 is fixedly connected to the two guide rods I53. Each guide rod I53 is sleeved with an elastic element I54. One end of the elastic element I54 is connected to the U-shaped handle 52, and the other end of the elastic element I54 is connected to the gripping plate 55. The elastic element I54 is a compression spring.

[0031] like Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the adjusting mechanism 10 includes a rotating shaft II 101, a gear 102, a rack 103, a rotating block II 104, a guide rod II 105, an annular retaining ring 106, retaining teeth 107, an elastic element II 108, and a square block 109. The rotating shaft II 101 is laterally rotatably mounted in the middle of the mounting plate 7. A gear 102 is located at the end of the rotating shaft II 101 between two retaining plates 9. Both retaining plates 9 are equipped with racks 103, which are staggered vertically. One rack 103 meshes with the upper part of the gear 102, and the other rack 103 meshes with the lower part of the gear 102. The rotating shaft II 101 is located away from... A rotating block II 104 is provided at one end of the gear 102. A handle is provided in the middle of the rotating block II 104. Guide rods II 105 are symmetrically and slidingly provided at the edge of the rotating block II 104 about the handle. An annular retaining ring 106 is provided on the mounting plate 7. The center of the annular retaining ring 106 coincides with the rotating shaft II 101. Each of the guide rods II 105 has a retaining tooth 107 at the far ends. The retaining tooth 107 cooperates with the annular retaining ring 106. An elastic element II 108 is provided between the retaining tooth 107 and the rotating block II 104. A square block 109 is provided at the close ends of the guide rods II 105. The elastic element II 108 is a compression spring.

[0032] like Figure 1 , Figure 2 , Figure 6 As shown, the limiting mechanism 11 includes guide sleeves 111, sliding frames 112, limiting plates 113, N-shaped frames 114, insert rods 115, and elastic elements III 116. Guide sleeves 111 are symmetrically arranged on the side of the mounting plate 7 about the annular retaining ring 106. Sliding frames 112 are arranged between the guide sleeves 111. A limiting plate 113 is laterally arranged at the lower part of the sliding frame 112, located below the retaining plate 9. An N-shaped frame 114 is arranged at the center of the upper part of the sliding frame 112. A sliding rod 115 is provided on the N-shaped frame 114. Two vertical holes 117 are opened on the upper part of the mounting plate 7. The rod 115 cooperates with the holes 117. An elastic element III 116 is provided between the rod 115 and the N-shaped frame 114. The elastic element III 116 is a compression spring. The sliding frame 112 can be moved. The position of the limiting plate 113 can be adjusted up and down according to the diameter of the installed pipe. Then, the rod 115 is fixed by cooperating with the corresponding hole 117.

[0033] Hospital construction requires pre-embedding pipes in the steel reinforcement frame to facilitate the subsequent establishment of the ventilation system. Workers insert the pipes sequentially into the steel reinforcement wall according to the construction drawings, then hang the arc-shaped bracket 1 on the upper steel reinforcement. Next, workers grasp the U-shaped handle 52 and engage the gripping plate 55. The gripping plate 55 moves the guide rod I 53, disengaging it from the insertion hole 117 on the mounting bracket 2. At this point, workers rotate the U-shaped handle 52, causing the rotating block I 51 to rotate. The rotating block I 51, through the rotating shaft I 3, drives the winding wheel 4 to rotate, thus lowering the steel rope 6. The components connected to the steel rope 6 also move downwards. When the limiting plate 113 is adjusted to be below the pipe, it is rotated in the opposite direction to rotate the winding wheel 4 and wind up the steel rope. This allows the limiting plate 113 to support the pipe, preventing the exposed portion of the pipe from tilting downwards. Simultaneously, the arc-shaped bracket 16 is secured to the lower steel reinforcement. Workers release the gripping plate 55, and under the action of the elastic element I 54, the guide rod I 53 returns to its original position and is inserted into the insertion hole 117 on the mounting bracket 2. Inside hole 117, to prevent the winding wheel 4 from rotating, the limiting plate 113 supports the pipe. The worker holds the square block 109 with one hand and moves it towards each other. The guide rod II 105 drives the locking tooth 107 to disengage from the annular retaining ring 106, and the elastic element II 108 is compressed. Then the rotating block is rotated, which drives the rotating shaft II 101 to rotate. The rotating shaft II 101 drives the gear 102 to rotate, which in turn drives the rack 103 to move, so that the locking plate 9 can move towards each other. The locking plate 9 drives the steel bars on both sides of the pipe to fit against the two side walls of the pipe. At this time, the square block 109 is released, and the elastic element II 108 drives the guide rod II 105 and the locking tooth 107 to reset. The locking tooth 107 is locked in the annular retaining ring 106, which can prevent the locking plate 9 from moving. At this time, the worker can take out the welding gun from the placement box 15 and perform welding treatment on the joint between the steel pipe and the pipe. This device has a simple structure and is easy to operate. It is beneficial for workers to correct the pipe and assist in welding treatment during the pipe pre-embedding welding process.

[0034] Example 2: As Figure 1 , Figure 2 and Figure 7 As shown, based on Embodiment 1, a support mechanism 12 is also included. The support mechanism 12 includes a guide rod II 121, a rotating rod 122, and a top plate 123. A square groove is opened on the upper part of the limiting plate 113. The guide rod II 121 is symmetrically and slidably arranged in the square groove of the limiting plate 113. The top plate 123 is arranged between the top ends of the two guide rods II 121. The top plate 123 is located in the square groove of the limiting plate 113. A threaded hole is opened in the middle of the square groove of the limiting plate 113. The rotating rod 122 is screwed into the threaded hole of the limiting plate 113 by means of a threaded connection. The top of the rotating rod 122 is rotatably connected to the bottom of the top plate 123. When it is found that the pipe position is still slightly drooping, the worker can rotate the rotating rod 122. The rotating rod 122 pushes the top plate 123 upward to move and fit against the pipe, pushing the pipe to swing upward, so that the pipe is aligned, which is beneficial to subsequent welding operations.

[0035] like Figure 1 , Figure 2 and Figure 8 As shown, it also includes a fixing mechanism 13, which includes a slide 131, a rotating shaft III 132, a fixing block 133, a guide rod III 134, an arc-shaped locking block 135, and an elastic element IV 136. Two slides 131 are slidably mounted on the arc-shaped hanger 1. Each slide 131 is equipped with a rotating shaft III 132. Fixing blocks 133 are located at both ends of the rotating shaft III 132. Guide rods III 134 are mounted on each fixing block 133. An arc-shaped locking block 135 is located at one end of each guide rod III 134 facing each other. An elastic element IV 136, which is a compression spring, is located between the arc-shaped locking block 135 and the fixing block 133. When the arc-shaped hanger 1 is hung on the upper horizontal reinforcing bar, the slide 131 can be moved to align with the adjacent vertical reinforcing bar, causing the arc-shaped locking block 135 to engage with the vertical reinforcing bar, making the installation of the device more stable.

[0036] like Figure 1 , Figure 6 and Figure 9 As shown, it also includes a protective mechanism 14, which includes a mounting block 141, a limiting sleeve rod 142, a slotted plate 143, a protrusion 145, and a limiting bushing 144. The mounting bracket 2 is equipped with mounting blocks 141 by bolt connection. The mounting block 141 is equipped with a limiting sleeve rod 142. The steel rope 6 passes through the limiting sleeve rod 142. The mounting plate 7 is equipped with a limiting bushing 144 at the part where the steel rope 6 is connected. The steel rope 6 passes through the limiting bushing 144. The limiting bushing 144 cooperates with the limiting sleeve rod 142. The outer wall of the limiting sleeve rod 142 is hinged with a slotted plate 143. The outer side of the limiting bushing 144 is equipped with a protrusion 145. The slotted plate 143 on the limiting sleeve rod 142 in the same vertical direction engages with the protrusion 145 on the limiting bushing 144. When the device is not in use, the operator can wind up the steel rope 6 and the limiting bushing 144 can be snapped onto the limiting sleeve rod 142. Then, the slot plate 143 is knocked down and snapped onto the protrusion 145 to prevent the parts under the steel rope 6 from swinging and damaging the device during movement.

[0037] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A pre-embedded device for through-wall pipes in hospital ventilation building construction, characterized in that, include: Arc-shaped bracket (1), mounting bracket (2), four mounting brackets (2) are symmetrically arranged on the arc-shaped bracket (1); rotating shaft I (3), rotating shaft I (3) is rotatably arranged between the four mounting brackets (2); winding wheel (4), winding wheel (4) is symmetrically arranged on the rotating shaft I (3), the winding wheel (4) is located inside two adjacent mounting brackets (2); rotating mechanism (5), a rotating mechanism (5) for driving the winding wheel (4) to rotate is provided at one end of the rotating shaft; steel rope (6), one end of two steel ropes (6) is wound on the corresponding winding wheel (4); mounting plate (7), the two sides of the mounting plate (7) are fixedly installed to the other ends of the two steel ropes (6); guide rod I (8), the two square holes on the mounting plate (7) are horizontally arranged. The mounting plate (7) is equipped with a guide rod I (8); a clamping plate (9), which is slidably mounted on the guide rod I (8); an adjustment mechanism (10), which is provided in the middle of the mounting plate (7) to adjust the position of the two clamping plates (9); a limiting mechanism (11), which is provided on the side wall of the mounting plate (7) to limit the installation of the pipe fitting, the limiting mechanism includes a limiting plate (113) and an arc-shaped clamping bracket (16), which is provided on the side wall of the limiting plate (113); the arc-shaped clamping bracket (16) is provided with a ring of elastic rubber layer inside the arc-shaped clamping bracket (16); the rotating mechanism (5) includes: a rotating block I (51), which is provided at one end of the rotating shaft; a U-shaped handle (52), which is provided on the rotating block I (51) A U-shaped handle (52) is fixedly installed on it; guide rod I (53), guide rod I (53) is symmetrically slidably installed on the U-shaped handle (52) about the axis of rotating shaft I (3), and the mounting bracket (2) near the rotating block I (51) has eccentrically spaced insertion holes (117) with the axis of rotating shaft I (3) as the axis, and guide rod I (53) cooperates with insertion holes (117); gripping plate (55), gripping plate (55) is slidably installed on the U-shaped handle (52), and gripping plate (55) is fixedly connected to two guide rods I (53); elastic element I (54), elastic element I (54) is sleeved on each of the guide rods I (53); the adjustment mechanism (10) includes: rotating shaft II (101), rotating shaft II (101) is laterally slidably installed in the middle of the mounting plate (7). 1) Gear (102): A gear (102) is provided at the end of the rotating shaft II (101) between the two clamping plates (9); Rack (103): A rack (103) is provided on both clamping plates (9), and the two racks (103) are arranged alternately, with one rack (103) meshing with the upper part of the gear (102) and the other rack (103) meshing with the lower part of the gear (102); Rotating block II (104): A rotating block II (104) is provided at the end of the rotating shaft II (101) away from the gear (102), and a handle is provided in the middle of the rotating block II (104); Guide rod II (105): A guide rod II (105) is symmetrically and slidingly provided on the edge of the rotating block II (104) about the handle.A ring retainer (106) is provided on the mounting plate (7), and the center of the ring retainer (106) coincides with the rotating shaft II (101); a retaining tooth (107) is provided at the far ends of the guide rod II (105), and the retaining tooth (107) cooperates with the ring retainer (106); an elastic element II (108) is provided between the retaining tooth (107) and the rotating block II (104); a square block (109) is provided at the near ends of the guide rod II (105); the limiting mechanism (11) includes: a guide sleeve (111), and a guide sleeve is symmetrically provided on the side of the mounting plate (7) about the ring retainer (106). (111); Sliding frame (112), a sliding frame (112) is provided between the guide sleeve (111); Limiting plate (113), a limiting plate (113) is provided horizontally at the lower part of the sliding frame (112), the limiting plate (113) is located below the card plate (9); N-shaped frame (114), an N-shaped frame (114) is provided at the center of the upper part of the sliding frame (112); Insert rod (115), an insert rod (115) is slidably provided on the N-shaped frame (114), two insertion holes (117) are opened vertically at the upper part of the mounting plate (7), the insert rod (115) cooperates with the insertion holes (117); Elastic element III (116), an elastic element III (116) is provided between the insert rod (115) and the N-shaped frame (114).

2. The pre-embedded device for through-wall pipes in hospital ventilation building construction as described in claim 1, characterized in that, It also includes a support mechanism (12), which includes: a guide rod II (121), a square groove is opened on the upper part of the limiting plate (113), and the guide rod II (121) is symmetrically and slidably arranged in the square groove of the limiting plate (113); a top plate (123), a top plate (123) is arranged between the top ends of the two guide rods II (121), and the top plate (123) is located in the square groove of the limiting plate (113); a rotating rod (122), a threaded hole is opened in the middle of the square groove of the limiting plate (113), and the rotating rod (122) is screwed into the threaded hole of the limiting plate (113) by means of threaded connection, and the top of the rotating rod (122) is rotatably connected to the bottom of the top plate (123).

3. The pre-embedded device for through-wall pipes in hospital ventilation building construction as described in claim 2, characterized in that, It also includes a fixing mechanism (13), which includes: a slide (131), two slides (131) are slidably arranged on the arc-shaped bracket (1); a rotating shaft III (132), a rotating shaft III (132) is arranged on each slide (131); a fixing block (133), a fixing block (133) is arranged at both ends of the rotating shaft III (132); a guide rod III (134), a guide rod III (134) is arranged on each fixing block (133); an arc-shaped locking block (135), an arc-shaped locking block (135) is arranged at one end of the guide rod III (134); and an elastic element IV (136), an elastic element IV (136) is arranged between the arc-shaped locking block (135) and the fixing block (133).

4. The pre-embedded device for through-wall pipes in hospital ventilation building construction as described in claim 3, characterized in that, It also includes a protective mechanism (14), which includes: a mounting block (141), which is provided on the mounting frame (2); a limiting sleeve (142), which is provided on the mounting block (141), and the steel rope (6) passes through the limiting sleeve (142); and a limiting bushing (144), which is provided on the mounting plate (7) where the steel rope (6) is connected, and the steel rope (6) passes through the limiting bushing (144), and the limiting bushing (144) cooperates with the limiting sleeve (142).

5. The through-wall pipe pre-embedded device for hospital ventilation building construction as described in claim 4, characterized in that, Also includes: The outer wall of the limiting sleeve (142) is hinged with a slot plate (143); the outer side of the limiting bushing (144) is provided with a protrusion (145), and the slot of the slot plate (143) on the limiting sleeve (142) in the same vertical direction is engaged with the protrusion (145) on the limiting bushing (144).

6. The pre-embedded device for through-wall pipes in hospital ventilation building construction as described in claim 5, characterized in that, Also includes: The placement box (15) is detachably provided between the lower guide sleeve (111) and the placement box (15).

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