A building electromechanical installation bracket

Abstract

The present invention discloses a building electromechanical installation bracket, comprising a hanger, wherein a positioning assembly and two connecting assemblies are respectively installed inside the hanger, two symmetrically arranged installation guide grooves are provided inside the hanger and are slidably matched with the connecting assemblies, a buffer table is fixedly installed on the surface of the hanger through the positioning assembly, a group of vertically arranged buffer rods are slidably connected inside the buffer table, a clamping frame is provided below the buffer table, the bottom end of each buffer rod is fixedly connected to the clamping frame, a buffer spring a is sleeved on the peripheral side surface of the buffer rod and at a position corresponding to the position above the buffer table, and a hanging beam is installed below the clamping frame in a liftable manner. The present invention can automatically compensate for the looseness when looseness occurs between the bracket and the wall through the provision of a linkage feedback assembly, and the fixing strength of the bracket is effectively improved by achieving the linkage automatic compensation effect.

Description

Technical Field

[0001] The present invention relates to the technical field of electromechanical installation brackets, in particular to a building electromechanical installation bracket. Background Art

[0002] Electromechanical seismic supports are used to limit the displacement of attached electromechanical engineering facilities, control the vibration of the facilities, and transfer the load to various components or devices on the bearing structure.

[0003] In the prior art, the patent document with publication number CN112377714A discloses a seismic support for building electromechanical engineering, including a vertical connecting channel steel, a lateral connecting channel steel and a rear connecting channel steel, wherein one end of the vertical connecting channel steel is provided with an outer limiting bolt hole, the interior of the vertical connecting channel is movably connected with an adjusting connecting rod, one end of the adjusting connecting rod is movably connected with an angle adjusting connecting plate, one end of the angle adjusting connecting plate is fixedly connected with a lateral connecting rod, and the other end of the angle adjusting plate is fixedly connected with a rear connecting rod, and the above-mentioned bracket is provided with an outer limiting bolt hole on the vertical connecting channel steel and an inner limiting bolt hole above the matching adjusting connecting rod. The bracket is provided with a plurality of fixing bolts, and the fixing bolts are inserted into the outer limiting bolt holes and the inner limiting bolt holes to fix them during installation. The height of the installation suspension can be conveniently adjusted to adapt to the top installation structure of different shapes, and the installation of the side connecting channel steels and the rear connecting channel steels at both ends is convenient. However, after the electromechanical equipment or electromechanical pipelines are installed, the above-mentioned bracket cannot self-compensate for the looseness between the bracket and the wall, and the existing bracket cannot effectively prevent the bracket and the electromechanical equipment installed on the bracket from falling when looseness occurs. Based on this, the present invention provides a building electromechanical installation bracket to solve the problems raised in the above-mentioned background technology. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a building electromechanical installation bracket. The present invention, through the setting of a linkage feedback component, can automatically compensate for the looseness when looseness occurs between the bracket and the wall. By achieving the linkage automatic compensation effect, the fixing strength of the bracket is effectively improved.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions, a building electromechanical installation bracket, the technical solution adopted is: including a hanger, the interior of the hanger is respectively installed with an adjustment component and two connecting components, the interior of the hanger is provided with two symmetrically arranged installation guide grooves that slide with the connecting components, the surface of the hanger is fixedly installed with a buffer table through the adjustment component, the interior of the buffer table is slidably connected to a group of vertically arranged buffer rods, a clamping frame is provided below the buffer table, the bottom end of each buffer rod is fixedly connected to the clamping frame, the peripheral side surface of the buffer rod and the position corresponding to the top of the buffer table are provided with a buffer spring a, a hanging beam is installed below the clamping frame in a liftable manner, a clamping mechanism is installed inside the clamping frame, and four regularly distributed linkage feedback components are installed on the surface of the hanger.

[0008] As a preferred solution, the positioning assembly includes a transmission screw rod horizontally arranged and rotatably connected between the inner surfaces of the hanger and two symmetrically arranged adjustment seats. The circumferential side surfaces of the two adjustment seats are slidably connected to the hanger. The circumferential side surfaces of the transmission screw rod are symmetrically provided with a forward threaded portion a and a reverse threaded portion a. The circumferential side surfaces of the forward threaded portion a and the reverse threaded portion a are respectively transmission-connected to the two adjustment seats. The inner walls of the two adjustment seats are hinged with connecting rods, and the other ends of the two connecting rods are hinged to the buffer platform.

[0009] As a preferred solution, two groups of regularly distributed and vertically arranged positioning screws are fixedly installed on the top surface of the hanging beam, and mounting guide holes that slide with the positioning screws are opened inside the clamp frame and at the position corresponding to each positioning screw, and limiting nuts are threadedly connected on the peripheral side surfaces of the positioning screws and at the position corresponding to the top of the clamp frame.

[0010] As a preferred solution, the clamping mechanism includes a clamping screw rod which is horizontally arranged and rotatably connected between the inner surfaces of the clamping frame and two active clamping platforms which are symmetrically arranged and both are slidably connected to the clamping frame. The circumferential side surfaces of the clamping screw rod are symmetrically provided with a forward threaded portion b and a reverse threaded portion b. The circumferential side surfaces of the forward threaded portion b and the reverse threaded portion b are respectively transmission-connected to the two active clamping platforms. A group of horizontally arranged elastic pull rods are fixedly installed on the backs of the two active clamping platforms. The backs of the two active clamping platforms are slidably connected to the clamping frame a through a group of elastic pull rods. The circumferential side surfaces of the elastic pull rods are sleeved with buffer springs b. A clamping frame b is arranged below the clamping frame a. The inner wall of the clamping frame b is slidably connected to the hanging beam. A group of horizontally arranged guide columns are fixedly installed on the top surface of the clamping frame b. The circumferential side surfaces of the guide columns are slidably connected to the clamping frame a.

[0011] As a preferred solution, the cross-sections of the elastic pull rod, the buffer rod and the guide column are all T-shaped, and the ends of the clamping screw and the transmission screw are fixedly mounted with transmission buttons.

[0012] As a preferred solution, the connecting components include a hanger that is slidably connected to the mounting guide groove, a guide shaft and a rotating shaft that are rotatably connected to the inside of the hanger, the inner wall of the hanger is rotatably connected to an inner support screw, the circumferential side surface of the inner support screw is threadedly connected to a support ring, a group of regularly distributed expansion strips are installed between the relative surfaces of the support ring and the hanger, the lower part of the inner support screw is fixedly provided with an actuator and an internal gear, the circumferential side surface of the rotating shaft is fixedly installed with an external gear and a driven bevel gear, the circumferential side surface of the external gear is matched with the internal gear transmission, the tail end of the guide shaft is fixedly installed with a transmission bevel gear that meshes with the driven bevel gear, and the guide shaft is driven by a linkage feedback component.

[0013] As a preferred solution, the expansion strip is made of elastic metal, is a "V"-shaped structure with rounded corners, and the radius of the outer gear is 3 to 6 times the radius of the inner gear.

[0014] The transmission gear of said sliding panel also is connected with the transmission gear of said sliding panel also is connected with the transmission gear of said sliding panel, and the transmission gear of said sliding panel also is connected with the transmission gear of said sliding panel.

[0015] As a preferred solution, the radius of the differential gear b is 5 to 10 times the radius of the differential gear a, and an air pressure probe is installed inside the air chamber.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the present invention provides a building electromechanical installation bracket, which has the following beneficial effects:

[0018] 1. The present invention, through the setting of a linkage feedback component, can automatically compensate for the looseness when looseness occurs between the bracket and the wall. By achieving the linkage automatic compensation effect, the fixing strength of the bracket is effectively improved. Moreover, through the setting of the linkage feedback component, the inflatable bag can be automatically inflated when looseness occurs between the bracket and the wall, thereby effectively preventing the bracket and the electromechanical equipment installed on the bracket from falling. By achieving the above-mentioned anti-fall protection effect, the safety of the bracket is effectively improved.

[0019] 2. The present invention can provide effective shock absorption protection for the bracket and electromechanical equipment after the installation of the electromechanical equipment through the setting of the buffer spring a, buffer spring b and buffer platform. By achieving the above-mentioned shock absorption protection effect, the safety and standardization of the bracket during use are effectively improved. Through the monitoring feedback setting of the air pressure probe, the external central control host can intelligently monitor the looseness between the bracket and the wall. When the monitoring threshold of the air pressure probe exceeds the threshold, the external central control host automatically alarms. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of a building electromechanical installation bracket according to the present invention;

[0021] Figure 2 For the present invention Figure 1 Schematic diagram of the local enlarged structure at A in the middle;

[0022] Figure 3 For the present invention Figure 1 Schematic diagram of the local enlarged structure at B in the middle;

[0023] Figure 4 For the present invention Figure 1 Schematic diagram of the local enlarged structure at C in the middle;

[0024] Figure 5 For the present invention Figure 1 A schematic diagram of the front structure of FIG.

[0025] Figure 6 For the present invention Figure 5 Schematic diagram of the local enlarged structure at D in the middle;

[0026] Figure 7 It is a structural diagram of the feedback lever and the holding spring of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the expansion strip and support ring of the present invention.

[0028] Figure: 1, hanger; 2, mounting guide groove; 3, buffer platform; 4, buffer rod; 5, clamping frame; 6, buffer spring a; 7, hanging beam; 8, transmission screw; 9, adjustment seat; 10, connecting rod; 11, positioning screw; 12, limit nut; 13, clamping screw; 14, active clamping platform; 15, elastic pull rod; 16, clamping frame a; 17, buffer spring b; 18, clamping frame b; 19, guide column ; 20. Hanging seat; 21. Guide shaft; 22. Inner support screw; 23. Support ring; 24. Expansion strip; 25. Actuating part; 26. Internal gear; 27. External gear; 28. Feedback rod; 29. ​​Inflator; 30. Inflatable bag; 31. Clamping spring; 32. Transmission gear plate; 33. Differential gear a; 34. Differential gear b; 35. Feed pressure gear plate; 36. Flexible connecting pipe; 37. Air pressure probe. DETAILED DESCRIPTION

[0029] The present invention will be further described and explained below in conjunction with specific embodiments and accompanying drawings:

[0030] See also Figure 1-8 The present invention relates to a building electromechanical installation bracket, which adopts the following technical solutions: comprising a hanger 1, wherein a positioning assembly and two connecting assemblies are respectively installed inside the hanger 1, two symmetrically arranged mounting guide grooves 2 are formed inside the hanger 1 and slideably cooperate with the connecting assemblies, and a buffer platform 3 is fixedly installed on the surface of the hanger 1 via the positioning assembly;

[0031] A set of vertical buffer rods 4 are slidably connected to the interior of the buffer platform 3. A clamping frame 5 is provided below the buffer platform 3. The bottom end of each buffer rod 4 is fixedly connected to the clamping frame 5.

[0032] A buffer spring a6 is sleeved on the side surface of the buffer rod 4 and corresponds to the position above the buffer platform 3. A hanging beam 7 is installed below the clamping frame 5 so that it can be lifted and lowered.

[0033] Two sets of regularly distributed and vertically arranged positioning screws 11 are fixedly installed on the top surface of the hanging beam 7. Inside the clamping frame 5 and corresponding to the position of each positioning screw 11, there are mounting guide holes that slide with the positioning screw 11. The surrounding side surfaces of the positioning screws 11 and the positions above the clamping frame 5 are threadedly connected with limit nuts 12;

[0034] When in use, the relative distance between the hanging beam 7 and the clamping frame 5 can be quickly adjusted by adjusting the position of the limit nut 12. By adjusting the relative distance between the hanging beam 7 and the clamping frame 5, the device is suitable for the installation and fixing of electromechanical equipment of various specifications.

[0035] The positioning assembly includes a transmission screw 8 that is horizontally arranged and rotatably connected to the inner surface of the hanger 1 and two symmetrically arranged adjustment seats 9. The peripheral side surfaces of the two adjustment seats 9 are both slidably connected to the hanger 1. The peripheral side surfaces of the transmission screw 8 are symmetrically provided with a forward threaded portion a and a reverse threaded portion a. The peripheral side surfaces of the forward threaded portion a and the reverse threaded portion a are respectively transmission-connected to the two adjustment seats 9. The inner walls of the two adjustment seats 9 are hinged with a connecting rod 10, and the other ends of the two connecting rods 10 are hinged to the buffer platform 3.

[0036] When in use, by driving the transmission screw 8 and setting the forward threaded portion a and the reverse threaded portion a, the distance between the two adjustment seats 9 can be quickly adjusted. After the distance between the two adjustment seats 9 is adjusted, the distance between the hanger 1 and the buffer platform 3 can be quickly changed, thereby changing the layout height of the buffer platform 3. By adjusting the layout height of the buffer platform 3, the installation position of the building electromechanical can be quickly changed.

[0037] The connecting components include a hanger 20 slidably connected to the mounting guide groove 2, a guide shaft 21 rotatably connected to the interior of the hanger 1, and a rotating shaft. The inner wall of the hanger 20 is rotatably connected to an internal support screw 22, and the peripheral side of the internal support screw 22 is threadedly connected to a support ring 23. A group of regularly distributed expansion strips 24 are installed between the support ring 23 and the opposing surface of the hanger 20. The expansion strips 24 are made of elastic metal and have a "V"-shaped structure with rounded corners.

[0038] The lower part of the inner support screw 22 is fixedly provided with an actuator 25 and an internal gear 26. The actuator 25 is a regular polygonal structure.

[0039] The outer gear 27 and the driven bevel gear are fixedly mounted on the peripheral side of the rotating shaft, and the peripheral side of the outer gear 27 is in transmission cooperation with the inner gear 26;

[0040] The radius of the outer gear 27 is 5 times that of the inner gear 26. By setting the radius difference between the inner gear 26 and the outer gear 27, the transmission ratio of the outer gear 27 to the inner gear 26 is effectively improved, and the working sensitivity of the inner gear 26 is effectively improved;

[0041] The tail end of the guide shaft 21 is fixedly mounted with a transmission bevel gear that meshes with the driven bevel gear. The guide shaft 21 is driven by a linkage feedback assembly.

[0042] A clamping mechanism is installed inside the clamping frame 5 , and four regularly distributed linkage feedback components are installed on the surface of the hanger 1 .

[0043] The clamping mechanism includes a clamping screw 13 arranged horizontally and rotatably connected to the inner surface of the clamping frame 5, and two symmetrically arranged active clamping platforms 14, both of which are slidably connected to the clamping frame 5. The peripheral side of the clamping screw 13 is symmetrically provided with a positive thread portion b and a negative thread portion b. The peripheral side surfaces of the positive thread portion b and the negative thread portion b are respectively transmission-connected to the two active clamping platforms 14.

[0044] During use, by setting the forward threaded portion b and the reverse threaded portion b, the two active clamping platforms 14 can be synchronously moved closer to or farther from each other. By moving the two active clamping platforms 14 closer to or farther from each other, the distance between the two active clamping platforms 14 can be quickly changed. By adjusting the distance between the two active clamping platforms 14, the fixing clamping strength of the clamping frame a16 and the clamping frame b18 on the electromechanical equipment can be quickly changed.

[0045] A group of horizontally arranged elastic pull rods 15 are fixedly installed on the back of the two active clamping platforms 14, and the back of the two active clamping platforms 14 are slidably connected to the clamping frame a16 through a group of elastic pull rods 15. The peripheral side of the elastic pull rod 15 is sleeved with a buffer spring b17, and a clamping frame b18 is arranged below the clamping frame a16. The inner wall of the clamping frame b18 is slidably connected to the hanging beam 7, and a group of horizontally arranged guide columns 19 are fixedly installed on the top surface of the clamping frame b18. The peripheral side of the guide column 19 is slidably connected to the clamping frame a16.

[0046] The cross sections of the elastic pull rod 15 , the buffer rod 4 and the guide pillar 19 are all T-shaped, and transmission buttons are fixedly mounted on the ends of the clamping screw 13 and the transmission screw 8 .

[0047] The linkage feedback assembly includes a feedback rod 28 vertically arranged and slidably connected to the hanger 1, a coupling rotatably connected to the side of the hanger 1, an air cylinder 29 horizontally arranged and fixedly connected to the hanger 1, and an inflatable protective bag 30 installed on the side of the hanging beam 7;

[0048] A holding spring 31 is sleeved on the side surface of the feedback lever 28, corresponding to the position above the hanger 1. A transmission tooth plate 32 is fixedly mounted on the bottom end of the feedback lever 28. Differential gears a33 and b34 are fixedly mounted on the side surfaces of the coupling shaft. The radius of the differential gear b34 is 8 times that of the differential gear a33. The side surfaces of the coupling shaft are connected to the guide shaft 21 at an adjacent position via a belt.

[0049] The circumferential side surface of the differential gear a33 is in driving connection with the transmission tooth plate 32. The inner wall of the air cylinder 29 is slidably connected to the air piston. The end surface of the air piston is fixedly mounted with a feed pressure tooth plate 35. The circumferential side surface of the feed pressure tooth plate 35 is in driving connection with the differential gear b34.

[0050] An inflation chamber is fixedly provided between the back of the inflation piston and the opposite surface of the inflation cylinder 29. The tail end of the inflation chamber is fixedly connected to the inflatable protective bag 30 through a flexible connecting tube 36. An air pressure probe 37 is installed inside the inflation chamber. The air pressure probe 37 is used to monitor the air pressure data inside the inflation chamber in real time. When the air pressure probe 37 is in operation, it is powered by an external power supply device. When in operation, the air pressure probe 37 is electrically connected to the external central control host, and the external central control host receives data feedback from the air pressure probe 37 in real time.

[0051] Through the monitoring feedback setting of the air pressure probe 37, the external central control host can intelligently monitor the looseness between the bracket and the wall. When the monitoring threshold of the air pressure probe 37 exceeds the threshold, the external central control host automatically alarms.

[0052] The working principle of the present invention is as follows: the device is mainly suitable for the installation of mechanical and electrical pipelines in buildings. When the mechanical and electrical pipelines are installed, the mechanical and electrical pipelines are fixed between the clamping frame 5 and the hanging beam 7. Before the installation operation, holes are punched in the installation position in advance. After the installation position is punched, the two connecting components are installed in the installation holes. When the two connecting components are installed, the expansion strip 24 is fully expanded, and then the position limitation of the hanging seat 20 is completed. After the two hanging seats 20 are installed, the two hanging seats 20 are assembled on the hanger 1 through the installation guide groove 2, and after assembly, the outer gear 27 and the inner gear 26 are engaged. After installation, the clamping frame b18 and the clamping frame a16 cooperate to complete the effective limitation of the mechanical and electrical pipeline. After installation, the air pressure probe 37 is electrically connected to the external central control host in real time. In the normal installation state, the feedback rod 28 is in a compressed state, and the buffer spring a6 and the buffer spring b17 perform shock absorption, buffering and shock absorption isolation on the mechanical and electrical pipeline.

[0053] When the hanger 1 becomes loose, the pressure state of the feedback rod 28 changes. After the position of the feedback rod 28 changes, it acts on the inflation piston and the internal gear 26 through the coupling. When the feedback rod 28 moves upward, on the one hand, the internal gear 26 drives the inner support screw 22 to tighten, thereby increasing the expansion amplitude of the expansion rib. On the other hand, the inflation piston inflates the interior of the inflatable protective bag 30, thereby providing anti-fall protection for the electromechanical pipeline.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A building electromechanical mounting bracket, comprising a hanger (1), characterized in that: The interior of the hanger (1) is respectively equipped with a positioning assembly and two connecting assemblies. The interior of the hanger (1) is provided with two symmetrically arranged mounting guide grooves (2) that are slidably matched with the connecting assemblies. A buffer table (3) is fixedly installed on the surface of the hanger (1) through the positioning assembly. A group of vertically arranged buffer rods (4) are slidably connected to the interior of the buffer table (3). A clamping frame (5) is provided below the buffer table (3). The bottom end of each buffer rod (4) is fixedly connected to the clamping frame (5). A buffer spring a (6) is sleeved on the peripheral side surface of the buffer rod (4) and at a position corresponding to the top of the buffer table (3). A hanging beam (7) is installed below the clamping frame (5) in a liftable manner. A clamping mechanism is installed inside the clamping frame (5). Four regularly distributed linkage feedback assemblies are installed on the surface of the hanger (1); The positioning assembly comprises a transmission screw (8) which is horizontally arranged and rotatably connected to the inner surface of the hanger (1) and two symmetrically arranged adjustment seats (9), the peripheral side surfaces of the two adjustment seats (9) are both slidably connected to the hanger (1), the peripheral side surfaces of the transmission screw (8) are symmetrically provided with a positive thread portion a and a negative thread portion a, the peripheral side surfaces of the positive thread portion a and the negative thread portion a are respectively transmission-connected to the two adjustment seats (9), the inner walls of the two adjustment seats (9) are hinged with a connecting rod (10), and the other ends of the two connecting rods (10) are hinged to the buffer platform (3); Two sets of regularly distributed and vertically arranged positioning screws (11) are fixedly mounted on the top surface of the hanging beam (7); a mounting guide hole for slidingly engaging with the positioning screw (11) is provided inside the clamping frame (5) and at a position corresponding to each positioning screw (11); and a limiting nut (12) is threadedly connected to the side surface of the positioning screw (11) and at a position corresponding to the top of the clamping frame (5); The clamping mechanism comprises a clamping screw (13) which is horizontally arranged and rotatably connected to the inner surface of the clamping frame (5) and two active clamping platforms (14) which are symmetrically arranged and both are slidably connected to the clamping frame (5). The peripheral side surfaces of the clamping screw (13) are symmetrically provided with a positive thread portion b and a reverse thread portion b. The peripheral side surfaces of the positive thread portion b and the reverse thread portion b are respectively connected to the two active clamping platforms (14) in a transmission manner. A set of horizontally arranged elastic pull rods (15) are fixedly installed on the back surfaces of the two active clamping platforms (14). The back surfaces of the two active clamping tables (14) are slidably connected to a clamping frame a (16) via a set of elastic pull rods (15), a buffer spring b (17) is sleeved on the peripheral side of the elastic pull rod (15), a clamping frame b (18) is provided below the clamping frame a (16), the inner wall of the clamping frame b (18) is slidably connected to the hanging beam (7), and a set of horizontally arranged guide columns (19) are fixedly mounted on the top surface of the clamping frame b (18), and the peripheral side of the guide columns (19) is slidably connected to the clamping frame a (16); The connecting assembly comprises a hanger (20) slidably connected to the mounting guide groove (2), a guide shaft (21) rotatably connected to the inside of the hanger (1), and a rotating shaft, the inner wall of the hanger (20) is rotatably connected to an inner support screw (22), the peripheral side surface of the inner support screw (22) is threadedly connected to a support ring (23), a group of regularly distributed expansion strips (24) are installed between the supporting ring (23) and the relative surface of the hanger (20), the lower part of the inner support screw (22) is fixedly provided with an actuator (25) and an internal gear (26), the peripheral side surface of the rotating shaft is fixedly provided with an external gear (27) and a driven bevel gear, the peripheral side surface of the external gear (27) is in transmission cooperation with the internal gear (26), the tail end of the guide shaft (21) is fixedly provided with a transmission bevel gear meshing with the driven bevel gear, and the guide shaft (21) is driven by a linkage feedback assembly; The linkage feedback assembly comprises a feedback rod (28) vertically arranged and slidably connected to the hanger (1), a coupling rotatably connected to the side of the hanger (1), an air cylinder (29) horizontally arranged and fixedly connected to the hanger (1), and an inflatable protective bag (30) installed on the side of the hanging beam (7). A tightening spring (31) is sleeved on the peripheral side of the feedback rod (28) and at a position corresponding to the upper part of the hanger (1). A transmission gear plate (32) is fixedly installed on the bottom end of the feedback rod (28). A differential gear a (33) and a differential gear b (34) are fixedly installed on the peripheral side of the coupling. The peripheral side surface of the coupling is transmission-connected to the guide shaft (21) at the adjacent position through a belt, the peripheral side surface of the differential gear a (33) is transmission-connected to the transmission tooth plate (32), the inner wall of the inflation cylinder (29) is slidably connected to an inflation piston, the end surface of the inflation piston is fixedly mounted with a feed tooth plate (35), the peripheral side surface of the feed tooth plate (35) is transmission-connected to the differential gear b (34), an inflation cavity is fixedly provided between the back surface of the inflation piston and the opposite surface of the inflation cylinder (29), and the tail end of the inflation cavity is fixedly connected to the inflatable protective bag (30) through a flexible connecting tube (36).

2. A building electromechanical mounting bracket according to claim 1, characterized in that: The cross sections of the elastic pull rod (15), the buffer rod (4) and the guide column (19) are all T-shaped, and the ends of the clamping screw rod (13) and the transmission screw rod (8) are fixedly mounted with transmission buttons.

3. A building electromechanical installation bracket according to claim 1, characterized in that: The expansion strip (24) is made of elastic metal and has a V-shaped structure with rounded corners. The radius of the outer gear (27) is 3 to 6 times the radius of the inner gear (26).

4. A building electromechanical installation bracket according to claim 1, characterized in that: The radius of the differential gear b (34) is 5 to 10 times the radius of the differential gear a (33), and an air pressure probe (37) is installed inside the air chamber.

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