Heating and ventilation air conditioner mounting mechanism for heating and ventilation engineering

Abstract

The invention relates to the field of heating and ventilation engineering, in particular to a heating and ventilation air conditioner mounting mechanism for heating and ventilation engineering, which comprises a base plate, a mounting mechanism and a movable mechanism are fixedly connected to the base plate, and the base plate is connected with a motor main body through an anti-falling mechanism; the mounting mechanism comprises a positioning disc and a positioning pin which are fixedly connected to the base plate, the motor main body is provided with a pin hole and a circular groove corresponding to the positioning pin and the positioning disc, the motor main body can be quickly disassembled and assembled through the arrangement of the movable mechanism, and the situation that the motor is lifted for a long time is avoided; the arrangement of the anti-falling mechanism can prevent the motor main body from falling and being damaged due to hand falling in the disassembly and assembly process, the arrangement of the installation mechanism can prevent the motor main body from being lifted for a long time in the installation process, and the arrangement of a positioning disc and a positioning pin can position the position of the motor main body more quickly in the installation process, so that disassembly and assembly are more quick. Bolts are not needed when the motor body is disassembled and assembled, and the problem that the bolts are located in a narrow space and are difficult to install is solved.

Description

Technical Field

[0001] The invention relates to the field of HVAC engineering, in particular to a HVAC installation mechanism for HVAC engineering. Background Art

[0002] HVAC is a general term for equipment and systems with heating, ventilation and air conditioning functions. The fresh air system is generally composed of a fresh air full heat exchanger and ventilation ducts. The fresh air full heat exchanger is installed at the air inlet, and then the circulation duct is used to exchange the indoor and outdoor air flows to achieve air circulation. The central air-conditioning system is a type of HVAC system. It regulates and distributes the hot and cold air inside the building through centralized equipment and piping systems to achieve a comfortable indoor environment.

[0003] During routine maintenance of the central air conditioner indoor unit, the surface and filter of the air conditioner need to be regularly cleaned to remove dust and debris. The fan blades on the central air conditioner indoor motor need to be removed and cleaned when the season changes. The motor installed indoors is generally at the edge of the ceiling, and there is a lack of effective moving space to remove the fan blades separately.

[0004] The existing central air-conditioning indoor motor needs to be removed during maintenance and cleaning, but its position is special and the maintenance window it can have is generally a narrow rectangular space, which makes it difficult to disassemble. During the removal process, one hand needs to hold the motor and the other hand needs to disassemble and assemble it separately. After the removal is completed, holding the motor with one hand can easily cause the motor to fall out of the hand. Therefore, we design an installation mechanism for the indoor motor of the HVAC to solve the above problem. Summary of the invention

[0005] In view of the above-mentioned problem or the problem in the prior art that it is difficult to disassemble and assemble the HVAC installation mechanism for HVAC engineering, the present invention is proposed.

[0006] Therefore, an object of the present invention is to provide a HVAC installation mechanism for HVAC engineering.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a HVAC installation mechanism for HVAC engineering, comprising a base plate, on which a mounting mechanism and a movable mechanism are respectively fixedly connected, and the base plate is connected to a motor body through an anti-slip mechanism; the mounting mechanism comprises a positioning plate and a positioning pin fixedly connected to the base plate, the motor body is provided with a pin hole and a circular groove corresponding to the positioning pin and the positioning plate, the bottom of the motor body is fixedly connected to an external bracket, and the external bracket is provided with an entry groove and an arc groove; The anti-slip mechanism includes an oblique groove provided on the motor bracket, and anti-slip pins are slidably connected inside the oblique groove, and two anti-slip pins are connected by a three-way piece, an anti-slip rope is clamped at the bottom of the three-way piece, and a fixed piece is fixedly connected to the end of the anti-slip rope, and a fixed groove and an inner groove corresponding to the fixed piece and the anti-slip rope are provided on the base plate, a positioning bracket and a movable piece are fixedly connected on one side of the base plate close to the fixed groove, and an avoidance groove is provided on the side of the movable piece close to the fixed groove.

[0008] As a preferred solution of the HVAC installation mechanism for HVAC engineering of the present invention, the cross-section of the positioning plate is circular, the outer wall of the positioning plate fits the inner wall of the circular groove, the bottom of the positioning plate is fixedly connected to the center of the substrate, and the positioning pin is slidably connected to the motor bracket.

[0009] As a preferred solution of the HVAC installation mechanism for HVAC engineering of the present invention, the three-way piece is made of rubber, the three-way piece is in contact with the outer wall of the motor bracket, the anti-slip rope is made of elastic material, and the width of the fixing groove gradually decreases from the fixing groove toward the inner groove.

[0010] As a preferred solution of the HVAC installation mechanism for HVAC engineering of the present invention, the installation mechanism also includes a bottom groove opened on the base plate, a movable cylinder is fixedly connected to the inside of the bottom groove through an elastic rope, a positioning cover is connected to the inner wall of the movable cylinder through a fixed spring, the positioning cover is adapted to the arc groove, and the bottom groove is fixedly connected to the blocking arc.

[0011] As a preferred solution of the HVAC installation mechanism for HVAC engineering of the present invention, the cross-section of the bottom groove is rectangular, the bottom groove is slidably connected to the movable cylinder, the cross-section of the positioning cover is circular, and the bottom of the positioning cover is arc-shaped.

[0012] As a preferred solution of the HVAC installation mechanism for HVAC engineering of the present invention, wherein: the movable mechanism includes an external component and an internal component, the external component includes an anti-detachment unlocking groove, a disengagement groove and an installation groove opened on the base plate, the outer wall of the base plate is also fitted with a stop cylinder, the inner wall of the stop cylinder is slidably connected to a bottom rod, the bottom rod and the stop cylinder are connected by a reset spring, the top of the bottom rod is fixedly connected to a hand-held rod, the top of the hand-held rod passes through the stop cylinder and extends to the outside thereof.

[0013] As a preferred solution of the HVAC installation mechanism for HVAC engineering of the present invention, the cross-sections of the anti-dropping unlocking groove, the disengagement groove and the installation groove are all circular and are all blind holes, and the hand-held rod is slidably connected to the stop cylinder.

[0014] As a preferred solution of the HVAC installation mechanism for HVAC engineering of the present invention, the external component also includes a ring frame fixedly connected to the stop cylinder, a drag plate and a contact plate are fixedly connected to the ring frame, a reset rope is fixedly connected to one end of the drag plate close to the contact plate, a sliding sleeve is fixedly connected to the other end of the reset rope, the sliding sleeve is slidably connected to the ring frame, and the sliding sleeve is fixedly connected to the movable sheet.

[0015] As a preferred solution of the HVAC installation mechanism for HVAC engineering of the present invention, the built-in component includes a lever and a towing rope fixedly connected to the ring frame, a round block is attached to the inner wall of the towing rope, and the other end of the towing rope is fixedly connected to the movable cylinder.

[0016] As a preferred solution of the HVAC installation mechanism for HVAC engineering of the present invention, there is a gap between the top of the round block and the bottom of the lever, the lever is matched with the movable cylinder, and the towing rope is made of elastic material.

[0017] The beneficial effects of the HVAC installation mechanism for HVAC engineering of the present invention: the setting of the movable mechanism can quickly disassemble and assemble the motor body, avoiding the situation of lifting the motor for a long time, the setting of the anti-slip mechanism can avoid falling due to slipping out of the hands during the disassembly and assembly process, the setting of the installation mechanism can avoid long-term lifting of the motor body during installation, and the setting of the positioning plate and the positioning pin during installation can locate the position of the motor body more quickly, thereby faster disassembly and assembly, and the device does not need to use bolts when disassembling and assembling the motor body, avoiding the problem of bolts being difficult to install in a small space. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of the HVAC installation mechanism for HVAC engineering.

[0020] Figure 2 This is a partial structural diagram of the HVAC installation mechanism used in HVAC engineering.

[0021] Figure 3 Schematic diagram of the active mechanism of the HVAC installation mechanism for HVAC engineering.

[0022] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0023] Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0024] Figure 6 Schematic diagram of the base plate of the HVAC installation mechanism for HVAC engineering.

[0025] Figure 7 A cross-sectional view of a base plate for an HVAC mounting mechanism for HVAC engineering.

[0026] Figure 8 Schematic diagram of the active mechanism of the HVAC installation mechanism for HVAC engineering.

[0027] Fig. 9 It is a schematic diagram of the installation mechanism of the HVAC installation mechanism for HVAC engineering.

[0028] Fig.10 It is a schematic diagram of the arc structure of the HVAC installation mechanism used in HVAC engineering.

[0029] In the figure: 100, base plate; 200, mounting mechanism; 201, positioning plate; 202, positioning pin; 203, pin hole; 204, circular groove; 205, external bracket; 206, entry groove; 207, arc groove; 208, bottom groove; 209, elastic rope; 210, movable cylinder; 211, fixing spring; 212, positioning cover; 213, clamping arc; 300, movable mechanism; 301, external component; 302, internal component; 301a, anti-drop unlocking groove; 301b, detachment groove; 301c, mounting groove; 301d, stop cylinder; 30 1e, bottom rod; 301f, reset spring; 301g, hand-held rod; 301h, ring frame; 301i, drag plate; 301j, contact plate; 301k, reset rope; 301l, sliding sleeve; 302a, lever; 302b, drag rope; 302c, round block; 400, anti-slip mechanism; 401, inclined groove; 402, anti-slip pin; 403, three-way piece; 404, anti-slip rope; 405, fixed plate; 406, fixed groove; 407, inner groove; 408, positioning bracket; 409, movable plate; 410, avoidance groove; 500, motor body. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0031] Example 1, reference Figures 1 to 10, which is the first embodiment of the present invention, and provides a HVAC installation mechanism 200 for HVAC engineering, which can achieve the effect of rapid disassembly and assembly of the indoor motor body 500, and can prevent the motor body 500 from slipping out of the hand and falling when installing the motor body 500. It includes a base plate 100, and the base plate 100 is respectively fixedly connected with the installation mechanism 200 and the movable mechanism 300, and the base plate 100 is connected with the motor body 500 through the anti-slip mechanism 400; the installation mechanism 200 includes a positioning plate 201 and a positioning pin 202 fixedly connected to the base plate 100, and the motor body 500 is provided with a pin hole 203 and a circular groove 204 corresponding to the positioning pin 202 and the positioning plate 201, and the bottom of the motor body 500 is fixedly connected with an external bracket 205, and the external bracket 205 is provided with an entry groove 206 and an arc groove 207; Further, see Figure 1 to Figure 6 The installation mechanism 200 and the movable mechanism 300 are set to effectively fix the motor body 500. When installing the motor body 500, it can be quickly disassembled and assembled to avoid the situation of lifting the motor body 500 for a long time, and at the same time avoid the situation that the screwdriver is not long enough to fix it. The base plate 100 is fixed to the wall by bolts and rubber pads, and the subsequent motor body 500 can be quickly disassembled and assembled. The positioning plate 201 and the positioning pin 202 are set to effectively limit the position of the motor body 500. The end of the positioning pin 202 is arc-shaped, which can better pass through the pin hole 203, and can better limit the motor body 500. The setting of the external bracket 205 can better fix the motor body 500 on the base plate 100. The base plate 100 is a double-sided plate, and the end close to the motor body 500 is a metal plate, which provides effective strength and ensures the stability of the motor body 500. The end away from the motor body 500 is a rubber plate, which can better fit the wall and reduce the noise generated by the motor body 500 during operation.

[0032] The anti-slip mechanism 400 includes an inclined groove 401 provided on the motor bracket, and anti-slip pins 402 are slidably connected inside the inclined groove 401. The two anti-slip pins 402 are connected by a three-way piece 403. An anti-slip rope 404 is clamped at the bottom of the three-way piece 403, and a fixed piece 405 is fixedly connected to the end of the anti-slip rope 404. A fixed groove 406 and an inner groove 407 corresponding to the fixed piece 405 and the anti-slip rope 404 are provided on the base plate 100. A positioning bracket 408 and a movable piece 409 are fixedly connected to one side of the base plate 100 close to the fixed groove 406, and an avoidance groove 410 is provided on the side of the movable piece 409 close to the fixed groove 406.

[0033] Furthermore, the setting of the inclined groove 401 can cause the three-way piece 403 to deform during the falling process of the motor body 500, so that the anti-drop pin 402 moves in the inclined groove 401, thereby converting a part of the gravitational potential energy into the elastic potential energy of the three-way piece 403, which can better protect the motor body 500 while providing protection for the anti-drop rope 404 to prevent the anti-drop rope 404 from being damaged due to excessive stretching. The setting of the fixing plate 405 can better fix the anti-drop rope 404, and the setting of the fixing groove 406 can better limit the fixing plate 405. The fixing plate 405 is made of magnet and can be attracted to the substrate 100. The setting of the anti-drop rope 404 can effectively protect the motor body 500, and the setting of the avoidance groove 410 can better replace the anti-drop rope 404.

[0034] The cross section of the positioning plate 201 is circular, and the outer wall of the positioning plate 201 fits with the inner wall of the circular groove 204, which is convenient for better limiting the motor body 500. The bottom of the positioning plate 201 is fixedly connected to the center of the base plate 100, and the positioning pin 202 is slidably connected to the motor bracket. The setting of the positioning pin 202 can better limit the motor body 500. The three-way piece 403 is made of rubber material, and the three-way piece 403 fits with the outer wall of the motor bracket. The anti-slip rope 404 is made of elastic material, and the width of the fixed groove 406 gradually decreases from the fixed groove 406 to the inner groove 407, which is convenient for better putting back the anti-slip rope 404.

[0035] In summary, the setting of the movable mechanism 300 can quickly disassemble and assemble the motor body 500, avoid the situation of lifting the motor body 500 for a long time, and avoid the situation that the screwdriver is not long enough to fix it. The base plate 100 is fixed to the wall by bolts and rubber pads, and the subsequent quick disassembly and assembly operations of the motor body 500 can be performed.

[0036] Example 2, reference Figure 2 to Figure 10 , which is the second embodiment of the present invention, and is different from the previous embodiment in that the mounting mechanism 200 is provided. This embodiment provides a mounting mechanism 200 for a HVAC installation mechanism 200 for HVAC engineering, which solves the problem of fixing the motor body 500, and includes a bottom groove 208 opened on the base plate 100, and the inside of the bottom groove 208 is fixedly connected with a movable cylinder 210 through an elastic rope 209, and the inner wall of the movable cylinder 210 is connected with a positioning cover 212 through a fixing spring 211, and the positioning cover 212 is adapted to the arc groove 207, and the inside of the bottom groove 208 is fixedly connected to block the arc. The cross section of the bottom groove 208 is rectangular, the bottom groove 208 is slidably connected with the movable cylinder 210, the cross section of the positioning cover 212 is circular, the bottom of the positioning cover 212 is arc-shaped, and the cross section of the base plate 100 is circular.

[0037] For more, see Fig. 9 and Fig.10The setting of the elastic rope 209 can effectively drive the movable cylinder 210 to reset. The cross-section of the movable cylinder 210 is circular. The circular movable cylinder 210 can better protect the fixed spring 211 and prevent the fixed spring 211 from being damaged due to deviation. The setting of the positioning cover 212 can effectively fit with the arc groove 207. When the positioning cover 212 overlaps with the arc groove 207, under the action of gravity, the bottom of the arc groove 207 can fit tightly with the positioning cover 212.

[0038] The rest of the structure is the same as that of Example 1.

[0039] In summary, the setting of the elastic rope 209 can effectively drive the movable cylinder 210 to reset. The cross-section of the movable cylinder 210 is circular. The circular movable cylinder 210 can better protect the fixed spring 211 and prevent the fixed spring 211 from being damaged due to deviation.

[0040] Example 3, reference Figure 2 to Figure 8 , which is the third embodiment of the present invention, and is different from the previous embodiment in that the movable mechanism 300. This embodiment provides a HVAC installation mechanism 200 for HVAC engineering, which solves the problem of rapid disassembly and assembly of the motor body 500. It includes a movable mechanism 300, and the movable mechanism 300 includes an external component 301 and an internal component 302. The arrangement of the external component 301 and the internal component 302 can effectively limit the motor body 500. The external component 301 includes an anti-disengagement unlocking groove 301a, a disengagement groove 301b and an installation groove 301c provided on the substrate 100. The outer wall of the substrate 100 is also attached with a stop cylinder 301d. The arrangement of the stop cylinder 301d can better drive the bottom rod 301e and the return spring 301 f moves. When the hand-held rod 301g moves, the stop cylinder 301d, the bottom rod 301e and the reset spring 301f can all move. The bottom rod 301e is slidably connected to the inner wall of the stop cylinder 301d. The bottom rod 301e and the stop cylinder 301d are connected by the reset spring 301f. The setting of the bottom rod 301e can better limit the stop cylinder 301d. The cross-sections of the bottom rod 301e and the stop cylinder 301d are both circular, which can better slide. The top of the bottom rod 301e is fixedly connected to the hand-held rod 301g. The top of the hand-held rod 301g passes through the stop cylinder 301d and extends to the outside thereof. The hand-held rod 301g is slidably connected to the stop cylinder 301d.

[0041] Further, see Figures 5 to 8The cross sections of the anti-drop unlocking groove 301a, the disengagement groove 301b and the installation groove 301c are all circular and blind holes, so as to prevent the bottom rod 301e from excessively crossing the corresponding groove body. The hand-held rod 301g is slidably connected to the stop cylinder 301d. The external component 301 also includes a ring frame 301h fixedly connected to the stop cylinder 301d. The ring frame 301h is made of metal material. The metal ring frame 301h can better drive the components connected thereto to rotate. The ring frame 301h is fixedly connected with a drag plate 301i and a contact plate 301j. One end of the drag plate 301i close to the contact plate 301j is fixedly connected with a reset rope 301k. The setting of the reset rope 301k can effectively drive the sliding sleeve 301l to move. The other end of the reset rope 301k is fixedly connected with a sliding sleeve 301l. The sliding sleeve 301l is slidably connected to the ring frame 301h, and the sliding sleeve 301l is fixedly connected to the movable sheet 409.

[0042] Reference Figure 5 The internal component 302 includes a lever 302a and a drag rope 302b fixedly connected to the ring frame 301h, a round block 302c is attached to the inner wall of the drag rope 302b, and the other end of the drag rope 302b is fixedly connected to the movable cylinder 210. There is a gap between the top of the round block 302c and the bottom of the lever 302a, the lever 302a is adapted to the movable cylinder 210, and the drag rope 302b is made of elastic material.

[0043] The rest of the structure is the same as that of Example 2.

[0044] The preliminary work can be completed by drilling holes on the wall, installing expansion bolts in the holes, and fixing the base plate 100 with the bolts.

[0045] When the anti-slip mechanism 400 is installed, the fixing piece 405 is fitted in the fixing groove 406. At this time, the fixing piece 405 and the base plate 100 are magnetically attracted. At this time, the hand-held rod 301g is pulled. During the movement of the hand-held rod 301g, the reset spring 301f is contracted. At this time, the reset spring 301f accumulates elastic potential energy. At this time, the bottom rod 301e rises and disengages from the anti-slip unlocking groove 301a. The hand-held rod 301g is rotated to move it into the disengagement groove 301b. At this time, the ring frame 301h rotates to drive the carriage 301i to move. During the movement of the carriage 301i, the reset rope 301k is moved. During the movement of the reset rope 301k, the sliding sleeve 301l is moved. The movement of the sliding sleeve 301l drives the movable piece 409 to move, so that the movable piece 409 is stuck in the positioning bracket 408. At this time, the fixing piece 405 is fixed. At this time, the three-way piece 403 on the motor body 500 is engaged with the anti-slip rope 404. At this time, lift the motor body 500 with one hand and insert it into the corresponding pin hole 203 and circular groove 204. At this time, move the hand-held rod 301g to the position of the installation groove 301c. At this time, the ring frame 301h rotates to drive the lever 302a to rotate, and the lever 302a rotates to drive the positioning cover 212 to move. At this time, the positioning cover 212 moves so that the movable cylinder 210 passes over the clamping arc 213 and enters the arc groove 207 through the entry groove 206. At this time, the gravity potential energy generated by the external bracket 205 drives the positioning cover 212 to contact the arc groove 207. At this time, the fixing work can be completed. At the same time, multiple positioning covers 212 limit the peripheral side of the external bracket 205 to prevent it from detaching during work; During the dismantling process, it is necessary to lift the motor body 500 and rotate the hand-held rod 301g in the opposite direction to make it enter the disengagement groove 301b from the installation groove 301c. When the ring frame 301h rotates, it will drive the drag rope 302b to move. The drag rope 302b is an elastic rope. During the movement of the drag rope 302b, the movable cylinder 210 and the positioning cover 212 can be driven to move out of the arc groove 207. The edge of the positioning cover 212 is in an arc shape and contacts the arc groove 207, which can drive the fixed spring 211 to stretch, thereby achieving the effect of disengagement. After disengagement, the clamping arc 213 is squeezed and the clamping arc 213 is used to limit the positioning cylinder to remove the motor body 500. After removal, the anti-detachment ropes 404 on the three-way pieces 403 on both sides can be contacted and clamped.

[0046] In summary, the setting of the bottom rod 301e can better limit the stop cylinder 301d, the setting of the anti-drop rope 404 can effectively protect the motor body 500, and the setting of the avoidance groove 410 can better replace the anti-drop rope 404.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. 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 spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A HVAC installation mechanism for HVAC engineering, characterized in that: It comprises a base plate (100), to which a mounting mechanism (200) and a movable mechanism (300) are respectively fixedly connected, and the base plate (100) is connected to a motor body (500) via an anti-slip mechanism (400); The mounting mechanism (200) comprises a positioning plate (201) and a positioning pin (202) fixedly connected to the base plate (100); the motor body (500) is provided with a pin hole (203) and a circular groove (204) corresponding to the positioning pin (202) and the positioning plate (201); an external bracket (205) is fixedly connected to the bottom of the motor body (500); and an entry groove (206) and an arc groove (207) are provided on the external bracket (205); The anti-slip mechanism (400) comprises an inclined groove (401) provided on the motor bracket, the interior of each of the inclined grooves (401) being slidably connected with an anti-slip pin (402), two of the anti-slip pins (402) being connected via a three-way piece (403), an anti-slip rope (404) being clamped at the bottom of the three-way piece (403), a fixed piece (405) being fixedly connected to the end of the anti-slip rope (404), a fixed groove (406) and an inner groove (407) corresponding to the fixed piece (405) and the anti-slip rope (404) being provided on the base plate (100), a positioning bracket (408) and a movable piece (409) being fixedly connected on one side of the base plate (100) close to the fixed groove (406), and an avoidance groove (410) being provided on one side of the movable piece (409) close to the fixed groove (406).

2. The HVAC installation mechanism for HVAC engineering according to claim 1, characterized in that: The cross section of the positioning plate (201) is circular, the outer wall of the positioning plate (201) fits the inner wall of the circular groove (204), the bottom of the positioning plate (201) is fixedly connected to the center of the base plate (100), and the positioning pin (202) is slidably connected to the motor bracket.

3. The HVAC installation mechanism for HVAC engineering according to claim 1, characterized in that: The three-way piece (403) is made of rubber material, the three-way piece (403) is in contact with the outer wall of the motor bracket, the anti-drop rope (404) is made of elastic material, and the width of the fixing groove (406) gradually decreases from the fixing groove (406) toward the inner groove (407).

4. The HVAC installation mechanism for HVAC engineering according to claim 2 or 3, characterized in that: The mounting mechanism (200) further comprises a bottom groove (208) formed on the base plate (100), the bottom groove (208) being fixedly connected to a movable cylinder (210) via an elastic rope (209), the inner wall of the movable cylinder (210) being connected to a positioning cover (212) via a fixing spring (211), the positioning cover (212) being adapted to the arc groove (207), and the bottom groove (208) being fixedly connected to a blocking arc (213).

5. The HVAC installation mechanism for HVAC engineering according to claim 4, characterized in that: The bottom groove (208) has a rectangular cross section, the bottom groove (208) is slidably connected to the movable cylinder (210), the positioning cover (212) has a circular cross section, and the bottom of the positioning cover (212) is arc-shaped.

6. The HVAC installation mechanism for HVAC engineering according to claim 5, characterized in that: The movable mechanism (300) comprises an external component (301) and an internal component (302); the external component (301) comprises an anti-disengagement unlocking groove (301a), a disengagement groove (301b) and an installation groove (301c) which are provided on the base plate (100); a stop cylinder (301d) is also fitted to the outer wall of the base plate (100); a bottom rod (301e) is slidably connected to the inner wall of the stop cylinder (301d); the bottom rod (301e) and the stop cylinder (301d) are connected via a return spring (301f); a hand-held rod (301g) is fixedly connected to the top of the bottom rod (301e); the top of the hand-held rod (301g) passes through the stop cylinder (301d) and extends to the outside thereof.

7. The HVAC installation mechanism for HVAC engineering according to claim 6, characterized in that: The anti-dropping unlocking groove (301a), the disengagement groove (301b) and the installation groove (301c) are all circular in cross-section and are all blind holes. The hand-held rod (301g) is slidably connected to the stop cylinder (301d).

8. The HVAC installation mechanism for HVAC engineering according to claim 7, characterized in that: The external component (301) further comprises a ring frame (301h) fixedly connected to the stop cylinder (301d); a drag plate (301i) and a contact plate (301j) are fixedly connected to the ring frame (301h); one end of the drag plate (301i) close to the contact plate (301j) is fixedly connected to a reset rope (301k); the other end of the reset rope (301k) is fixedly connected to a sliding sleeve (301l); the sliding sleeve (301l) is slidably connected to the ring frame (301h); and the sliding sleeve (301l) is fixedly connected to the movable sheet (409).

9. The HVAC installation mechanism for HVAC engineering according to claim 8, characterized in that: The built-in component (302) comprises a lever (302a) and a towing rope (302b) fixedly connected to the ring frame (301h); a round block (302c) is attached to the inner wall of the towing rope (302b); and the other end of the towing rope (302b) is fixedly connected to the movable cylinder (210).

10. The HVAC installation mechanism for HVAC engineering according to claim 9, characterized in that: There is a gap between the top of the round block (302c) and the bottom of the lever (302a); the lever (302a) is compatible with the movable cylinder (210); and the towing rope (302b) is made of elastic material.

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