Pluggable wedge wall surface and top surface mounting and dismounting mechanism

Abstract

The utility model relates to a plug-in type wedge wall surface and top surface mounting and dismounting mechanism, an upper fixing assembly and a lower fixing assembly which are used for fixing wall surface wedges of an anechoic chamber are respectively composed of an upper taper sleeve, a step shaft, an upper guide sleeve, a lower guide column and a lower guide sleeve, the upper taper sleeve is sleeved on the step shaft, the step shaft and the lower guide column are screwed on a wall surface guide rail, and the step shaft is sleeved on the upper guide sleeve. The upper guide sleeve and the lower guide sleeve are screwed on an inner C-shaped bracket of the wall wedge; the top fixing assembly used for fixing the top face wedge is composed of a combined shaft, a tip taper sleeve, a chuck and a spring rod, the combined shaft is sleeved with the tip taper sleeve and then fixed to the top face guide rail, the chuck is fixed to an inner C-shaped support of the top face wedge after being provided with the spring rod, and the spring rod penetrates into the chuck to fix the combined shaft in a self-dismounting mode. The wedges provided with the wall surface and top surface mounting and dismounting mechanism are arranged at some points or some rows of large-area wedges, other hook type common wedges can be quickly dismounted and replaced from the points or the rows, large-area sequential dismounting is avoided, and the maintenance efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of anechoic chamber wedge, especially a kind of plug-in wedge wall surface and top surface installation and dismounting mechanism. BACKGROUND

[0002] As anechoic chamber of acoustic experiment and acoustic detection, it is widely used in aerospace, military industry, ship, automobile, communication, audio-visual, household appliance, electric power, instrument, building material and language research fields, and is important laboratory for scientific research institutions, detection institutions and production enterprises to carry out acoustic measurement on products.

[0003] Metal perforated plate protective wedge can be made into single or double wedge according to needs, and a double wedge can also be assembled by two single wedges. The volume of some large and medium-sized anechoic chambers is very large, and a large number of wedges need to be installed on the wall surface and top surface. The volume and weight of the measured object in the anechoic chamber are sometimes very large, such as moving vehicles, aircraft, ships or vehicle-mounted measured objects. Hoisting or lifting equipment is sometimes needed to transport the measured object. Due to the inertia of the power equipment, it is inevitable to collide with the wedges on the wall surface or top surface, causing local wedge damage. The damaged wedge not only affects the appearance of the anechoic chamber, but also adversely affects the safety of the sound field or the anechoic chamber. Therefore, the damaged wedge needs to be replaced in time.

[0004] Currently, the installation method of wall surface wedge is to hang it on the slot-shaped hole of guide rail from bottom to top row by row through the hook at the bottom of the wedge. The top surface wedge is also installed sequentially from one side to the other side, leaving a redundant gap at the top of the wall surface or one side of the top surface to make the inner surface of the anechoic chamber beautiful. The wedges installed in this way also need to be disassembled from the upper part of the wall surface downward or from the side where the wedge is installed last to the side where the wedge is installed first. If the wedge at a certain position of the lower part of the wall surface or a certain position of the side where the wedge is installed first on the top surface is damaged and needs to be replaced, it may need to disassemble the wedges in a large area. When disassembling the wedge, the wedge needs to be raised first so that the hook at the bottom of the wedge can be separated from the slot-shaped hole of the guide rail, and then the wedge can be removed. When installing the wedge, the wedge needs to be raised by one hook height, and then the wedge is hung in the slot-shaped hole of the guide rail. Since the gap between the wedges is very small, the wedge cannot be disassembled from any position. The disassembly and replacement process is time-consuming, labor-intensive and high in cost. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a kind of plug-in wedge wall surface and top surface installation and dismounting mechanism, so that the plug-in wedge can be installed and disassembled by moving vertically to the wall surface or top surface without any movement parallel to the wall surface or top surface. By installing this plug-in wedge at some nodes, space is provided for the disassembly of hook-type wedges around, avoiding the traditional method of sequentially and extensively disassembling the wedges, and greatly improving the work efficiency of replacing damaged wedges.

[0006] The utility model discloses the technical scheme that adopts: a kind of plug-in sharp wedge wall surface and top surface installation dismounting mechanism, including sharp wedge 4, keel 5 and guide rail 6, wall surface and top surface keel support on the ground of inner suite room of anechoic chamber, guide rail is fixed on the keel of wall surface and top surface, sharp wedge is fixed on the guide rail of wall surface and top surface.It also includes upper fixed assembly 1, lower fixed assembly 2, top fixed assembly 3 and inner C-shaped bracket 7.Sharp wedge 4 is single sharp sharp wedge, inner C-shaped bracket 7 is welded in the base portion of sharp wedge interior, 2 to 3 upper fixed assembly 1 are installed in the upper portion of wall surface sharp wedge, 2 to 3 lower fixed assembly 2 are installed in the lower portion of wall surface sharp wedge, 4 to 6 top fixed assembly 3 are installed in the top portion of top surface sharp wedge;

[0007] Upper fixed assembly 1 is composed of upper taper sleeve 11, stepped shaft 12 and upper guide sleeve 13, stepped shaft is divided into three sections, small head section is provided with thread, middle section is shaft rod, and outer end surface of large head section is inclined surface, small head section is screwed with guide rail 6 on wall surface through anti-slip nut, upper taper sleeve 11 is sleeved on the shaft rod of stepped shaft, and one end of its towards stepped shaft large head section is horn mouth shape, upper guide sleeve 13 is sleeve with one end closed, and screw rod is extended to its closed end and fixed with inner C-shaped bracket 7 in sharp wedge 4 through anti-slip nut, and its open end is inclined surface with outer large and inner small, and 8 to 14 umbrella-shaped expansion joints are uniformly cut on the sleeve body of upper guide sleeve, and circular hole is respectively arranged at the terminal point of expansion joint, and one annular groove is arranged outside the circular hole;

[0008] Lower fixed assembly 2 is composed of lower guide column 21 and lower guide sleeve 22, one end of lower guide column 21 extends screw rod and is screwed with guide rail 6 on wall surface through anti-slip nut, and the other end is conical body, lower guide sleeve 22 is sleeve with one end closed, and screw rod is extended to its closed end and fixed with inner C-shaped bracket 7 in sharp wedge 4 through anti-slip nut, and its open end is connected with lower guide column 21 movably;

[0009] The top fixing assembly 3 is composed of a combined shaft 31, a top cone head 32, a top cone sleeve 33, a collet 34, a spring sleeve 35, a spring rod 36 and a positioning nut 37, the upper and lower ends of the combined shaft 31 are threaded, the top cone head 32 is a conical head with a recessed inner wall and is provided with a threaded hole in the center, the upper end of the combined shaft is screwed with the top guide rail 6 through an anti-skid nut, the lower end of the combined shaft is screwed with the top cone head 32, the lower end of the top cone sleeve 33 is a boss with upper and lower inclined surfaces and is sleeved on the combined shaft, the collet 34 is cylindrical, 3-4 threaded round holes are formed in the cylinder wall of the middle part, the spring sleeve 35 is a cylinder with one end closed and the other end open, a center hole is formed in the closed end, the outer wall of the spring sleeve is threaded and screwed with the positioning nut 37, the open end of the spring sleeve is screwed in the threaded round hole of the cylinder wall of the collet 34 and is welded on the collet after being positioned by the positioning nut, the position and number of the spring sleeve correspond to the threaded round holes in the cylinder wall of the collet, the spring rod 36 is in the shape of a stepped shaft, the end face of the thick rod section is chamfered and extends into the threaded round hole in the collet by 3-6 mm, the thin rod section extends to the outside of the center hole of the spring sleeve after being sleeved with a spring, a positioning pin is installed on the stepped shaft outside the center hole, and 3-4 fixing holes are formed in the upper surface of the collet 34 and are fixed with the inner C-shaped support 7 of the top sharp wedge.

[0010] An annular groove is formed outside the round hole at the end of the upper guide sleeve 13.

[0011] One to two pairs of lifting lugs are installed on the top of the top sharp wedge 4, and one to two steel wire ropes 8 are hung on the top guide rail 6 through the lifting lugs.

[0012] The combined shaft 31 and the top cone head 32 in the top fixing assembly are made in one piece.

[0013] The sharp wedges installed with the plug-in sharp wedge wall surface and the top surface mounting and dismounting mechanism are fixed on any node or any row of nodes of the wall surface sharp wedge and the top surface sharp wedge, and ordinary hook type sharp wedges are installed around the sharp wedges.

[0014] The utility model has the advantages of:

[0015] 1. No extra space is occupied: the mechanism fixed on the guide rail is equivalent to a plug, and the mechanism fixed on the inner C-shaped support of the sharp wedge is equivalent to a socket, when the sharp wedge is vertically pushed into the wall surface or the top surface, the plug is combined with the socket, the sharp wedge is locked, and the installation is completed; when the sharp wedge is continuously vertically pushed into the wall surface or the top surface and passes through the clamping position, the plug is unlocked from the socket, the sharp wedge is pulled outwards, the plug is separated from the socket, and the sharp wedge is dismounted, the whole process of installing and dismounting the sharp wedge does not occupy the space outside the bottom area of the sharp wedge, thereby realizing that the sharp wedge at any selected position can be vertically dismounted and quickly assembled and disassembled.

[0016] 2. Reasonable structure: according to the different stress conditions of the wedge installed on the wall surface and the top surface fixing mechanism, three kinds of wedge fixing structures are designed for the installation of the plug-in wedge wall surface and the top surface. The fixing mechanism of the wall surface wedge is installed with an upper fixing assembly with clamping function and a lower fixing assembly with supporting function, and the fixing mechanism of the top surface wedge is installed with a combined mechanism with self-unloading function, so that the wedge at different positions adopts different fixing modes. And because the upper guide sleeve body line cutting has an umbrella-shaped expansion joint, and a ring groove is arranged, the step shaft can be easily inserted or pulled out of the upper guide sleeve.

[0017] 3. Easy operation: since the upper fixing assembly and the top fixing assembly realize automatic clamping after the wedge is vertically inserted, and the wedge can be pulled out by pushing it, the installation structure is easy to disassemble and install the wall surface and top surface wedge.

[0018] 4. High disassembly efficiency: since only a small number of plug-in wedges with plug-in wedge wall surface and top surface installation and disassembly mechanisms are selectively installed on the entire wall surface and top surface, when the wedge at any position is damaged, only the nearest plug-in wedge needs to be removed, and the other hook-type ordinary wedges below it can be quickly removed, without the need to remove the wedges from top to bottom on the wall surface or from one side to the other on the top surface until the damaged wedge is removed, reducing the number of wedges to be disassembled.

[0019] 5. Safety guaranteed: since the lifting lugs are diagonally installed on the top of the top surface wedge, and the steel wire rope is fixed on the top guide rail, the damage caused by the falling of the wedge can be effectively avoided.

[0020] The component names of the utility model are as follows:

[0021] 1. Upper fixing assembly 11, upper cone sleeve 12, step shaft 13, upper guide sleeve

[0022] 2. Lower fixing assembly 21, lower guide column 22, lower guide sleeve 3, top fixing assembly

[0023] 31. Combined shaft 32, top cone head 33, top cone sleeve 34, chuck

[0024] 35. Spring sleeve 36, spring rod 37, positioning nut 4, wedge

[0025] 5. Keel 6, guide rail 7, inner C-shaped support 8, steel wire rope

[0026] 9. Auxiliary guide rail BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 The utility model wall surface wedge upper fixing assembly and lower fixing assembly installation position view.

[0028] Figure 2It is the upper fixed assembly node enlarged view of the utility model.

[0029] Figure 3 It is the lower fixed assembly node enlarged view of the utility model.

[0030] Figure 4 It is the top fixed assembly installation position view of the utility model.

[0031] Figure 5 It is the top fixed assembly node enlarged view of the utility model.

[0032] Figure 6 It is the wedge fixed guide rail view of the utility model.

[0033] Figure 7 It is the upper fixed assembly exploded schematic view of the utility model.

[0034] Figure 8 It is the upper fixed assembly middle upper guide sleeve outer surface expansion joint schematic view of the utility model.

[0035] Figure 9 It is the upper fixed assembly middle upper guide sleeve outer surface expansion joint right view of the utility model.

[0036] Figure 10 It is the lower fixed assembly middle lower guide column and lower guide sleeve schematic view of the utility model.

[0037] Figure 11 It is the top fixed assembly middle top cone head and top cone sleeve combination schematic view of the utility model.

[0038] Figure 12 It is the utility model Figure 5 Middle A-A partial sectional view.

[0039] Figure 13 It is the top fixed assembly middle clamp upper surface fixed hole schematic view of the utility model.

[0040] Figure 14 It is the facade installation schematic view of the utility model anti-falling steel wire rope.

[0041] Figure 15 It is the wedge bottom surface anti-falling steel wire rope installation schematic view of the utility model.

[0042] Figure 16 It is the auxiliary keel installation structure schematic view of the utility model.

[0043] Figure 17 It is the wall surface wedge partial installation schematic view of the utility model. DETAILED DESCRIPTION

[0044] The specific implementation of the utility model is described in further detail below in combination with the drawings:

[0045] As Figure 1 , Figure 4 , Figure 6 , Figure 17 shown, a plug-in wedge wall and ceiling mounting and dismounting mechanism is applied to the fixing of the wedge of the anechoic chamber, which can convert the ordinary hook type wedge into plug-in wedge. The mechanism comprises a wedge 4, a keel 5 and a guide rail 6. The keel is an angle steel or a square steel. The wall keel is supported on the ground of the inner suite of the anechoic chamber. The ceiling keel is fixed on the wall keel. The guide rails are fixed on the wall keel and the ceiling keel respectively. The guide rail is an angle steel with a slotted hole on the steel surface. The metal wedge with a perforated steel plate as a protective surface is mounted on the guide rail of the wall and the ceiling. The embodiment is an anechoic chamber of a wind tunnel. The height of the installed wedge is 1.5 m. The bottom area of the ordinary hook type wedge is 1.2*1.2 m for a double-pointed wedge and 1.2*0.6 m for a single-pointed wedge. The wedge with the plug-in wedge wall and ceiling mounting and dismounting mechanism adopts a single-pointed wedge. The bottom area is 1.2*0.6 m and occupies the installation position of a double-pointed wedge after being combined with an ordinary hook type single-pointed wedge. During the installation of the wedge, the wedge with a transverse pointed part and the wedge with a longitudinal pointed part are staggered. Most of the wedges are ordinary hook type wedges. The wall wedges are hung in the slotted hole of the guide rail from top to bottom or the ceiling wedges are hung from one side to the other side. A few wedges are single-pointed wedges with the plug-in wedge wall and ceiling mounting and dismounting mechanism, i.e. plug-in wedges. The utility model also comprises an upper fixing assembly 1, a lower fixing assembly 2, a top fixing assembly 3 and an inner C-shaped bracket 7. The inner C-shaped bracket 7 is welded on the base inside the wedge. One end of 2-3 upper fixing assemblies 1 and 2-3 lower fixing assemblies 2 is screwed on the guide rail of the wall wedge. The other end is screwed on the inner C-shaped bracket inside the wedge. One end of 4-6 top fixing assemblies 3 is screwed on the guide rail of the ceiling wedge. The other end is screwed on the inner C-shaped bracket of the ceiling wedge. In the embodiment, one single-pointed wedge is fixed with the wall guide rail through 2 upper fixing assemblies and 2 lower fixing assemblies. One single-pointed wedge is fixed with the ceiling guide rail through 4 top fixing assemblies. The mechanism fixed on the guide rail is equivalent to a plug. The mechanism fixed on the inner C-shaped bracket of the wedge is equivalent to a socket. The plug and the socket constitute a plug-in relationship.

[0046] As Figure 2 , Figure 7 , Figure 8 , Figure 9 , Figure 10As shown, the upper fixing component 1 consists of an upper conical sleeve 11, a stepped shaft 12, and an upper guide sleeve 13. The stepped shaft is divided into three sections: the small end section is threaded and screwed to the guide rail 6 on the wall via an anti-slip nut; the middle section is a shaft; and the outer end face of the large end section is a bevel. The upper conical sleeve 11 is fitted onto the shaft of the stepped shaft, and its end facing the large end of the stepped shaft is flared. The upper guide sleeve 13 is a sleeve with one end closed and the other end open. Its closed end extends with a screw and is fixed to the inner C-shaped bracket 7 in the wedge via an anti-slip nut. Its open end is a bevel with a larger outer surface and a smaller inner surface. The upper guide sleeve has 8 to 14 umbrella-shaped expansion joints evenly cut by line, and the end of each expansion joint is provided with a round hole to prevent the expansion joint from cracking. In this utility model, the number of expansion joints is 12, and the length of each joint is 50mm. When the wedge is fixed to the wall, it is pushed against the wall from the front. The sloping surface of the upper guide sleeve 13, which is wider at the outside and narrower at the inside, strikes the sloping surface of the outer end of the large end section of the stepped shaft 12. The upper guide sleeve opens like an umbrella through the gap of the expansion joint, and the stepped shaft is pushed into the upper guide sleeve until the two planes of the stepped shaft 12 and the upper guide sleeve 13 come into contact and are held by the flared opening of the upper conical sleeve. The stepped shaft 12 is clamped between the upper conical sleeve 11 and the upper guide sleeve 13. The maximum outer diameter of the flared opening of the upper conical sleeve 11 is greater than the maximum outer diameter of the large end section of the stepped shaft 12, so that when the wedge is pushed in, the upper guide sleeve 13 can push open the upper conical sleeve 11 and enter between the upper conical sleeve 11 and the stepped shaft 12, thus fixing the wedge. When disassembling the wedge, continue pushing the wedge towards the wall guide rail. The upper guide sleeve 13 passes over the maximum outer diameter of the flared shape of the upper conical sleeve 11. The inclined surface of the upper guide sleeve, which is larger on the outside and smaller on the inside, crosses over the flared shape of the upper conical sleeve and enters the straight section of the upper conical sleeve. The umbrella-shaped expansion joint of the upper guide sleeve 13 opens. At this time, pull the wedge backward towards the anechoic chamber, which will move the upper conical sleeve backward to contact the plane of the large end section of the stepped shaft. Under the action of the pulling force, the umbrella-shaped expansion joint of the upper guide sleeve 13 continues to open until it is larger than the highest point of the flared shape of the upper conical sleeve 11. Under the action of the metal elastic restoring force and the upper inclined surface of the upper conical sleeve and the upper guide sleeve, the upper guide sleeve crosses the large end section and disengages from the stepped shaft 12, thereby causing the wedge to disengage from the guide rail 6 and be removed.

[0047] like Figure 3 , Figure 10 As shown, the lower fixing component 2 consists of a lower guide post 21 and a lower guide sleeve 22. One end of the lower guide post 21 extends with a screw and is screwed to the guide rail 6 on the wall via an anti-slip nut. The other end is tapered. The lower guide sleeve 22 is a sleeve with one closed end. Its closed end extends with a screw and is fixed to the inner C-shaped bracket 7 inside the wedge 4 via an anti-slip nut. Its open end corresponds to the lower guide post 21. When the wedge is inserted into the guide rail and pulled out of the guide rail, the action of the lower fixing component and the action of the upper fixing component are performed simultaneously. The lower fixing component has a relatively simple structure and mainly plays a positioning and support role at the bottom, bearing the weight of the entire wedge and preventing the upper fixing component from bearing the tension of leaving the wall. The upper fixing component mainly plays a tightening and fixing role.

[0048] As Figure 5 , Figure 11 , Figure 12 shown, the top fixed assembly 3 is composed of a combination shaft 31, a top cone head 32, a top cone sleeve 33, a chuck 34, a spring sleeve 35, a spring rod 36 and a positioning nut 37. The upper and lower ends of the combination shaft 31 are threaded. The top cone head 32 is a conical head with a recessed inner wall and is provided with a threaded hole in the center. The upper end of the combination shaft is screwed with the top guide rail 6 through an anti-skid nut. The lower end of the combination shaft is screwed with the top cone head 32. The lower end of the top cone sleeve 33 is a boss-shaped platform with upper and lower inclined surfaces and is sleeved on the combination shaft. The chuck 34 is a cylindrical shape. Three to four threaded round holes are provided on the cylinder wall of the middle part of the chuck. The present utility model is provided with three threaded round holes. The spring sleeve 35 is a cylinder with one end closed and the other end open. A central hole is provided on the closed end. The outer wall of the spring sleeve is threaded and is screwed with the positioning nut 37. The open end of the spring sleeve is screwed in the threaded round hole of the cylinder wall of the chuck 34 and is welded on the chuck after being positioned by the positioning nut. The position and number of the spring sleeve correspond to the threaded round holes on the cylinder wall of the chuck. The spring rod 36 is a thick-thin shaft and is installed in the spring sleeve. The thin shaft end of the spring rod is sleeved with a spring and extends to the outside of the central hole of the spring sleeve. The length of the spring rod extending out of the inner surface of the chuck is limited by the spring, a gasket and a positioning pin. The thick shaft end of the spring rod is provided with a chamfer and extends 3 to 6 mm out of the threaded round hole in the chuck under the action of the spring. In the present utility model, the thick shaft end of the spring rod extends 4 mm out of the threaded round hole in the chuck. The maximum outer diameter of the top cone sleeve 33 is greater than the maximum outer diameter of the top cone head 32. When the wedge is pushed in, the spring rod 36 can push the top cone sleeve 33 upward and enter the space between the top cone sleeve 33 and the top cone head 32 to fix the wedge.

[0049] As Figure 13As shown, the upper surface of the chuck 34 is provided with 3 to 4 fixing holes and is fixed with the inner C-shaped support 7 of the top wedge, the number of the fixing holes in the utility model is 3, and each wedge is fixed on the top guide rail through 4 top fixing assemblies. When installing the top wedge, the wedge is pushed upward, the chuck 34 fixed on the inner C-shaped support is moved upward, the spring sleeve 35 and the spring rod 36 fixed on the chuck are moved upward along the top cone head 32 by overcoming the force of the spring, when the height of the spring rod moving exceeds the upper surface of the top cone head, the spring rod is completely ejected, under the action of the gravity of the wedge, the wedge is pressed on the upper surface of the top cone head 32 through the spring rod 36, the fixing of the wedge and the combined shaft 31 and the top guide rail 6 is realized, at this time, the 4 top fixing assemblies operate simultaneously to position the top wedge. When disassembling the wedge, the wedge is continuously pushed upward, the spring rod 36 is moved upward to the upper inclined surface along the lower inclined surface of the conical outer surface of the top cone sleeve 33, the spring rod 36 exceeds the maximum outer diameter of the top cone sleeve 33, then the wedge is pulled downward, the spring rod is moved downward, the top cone sleeve 33 is moved downward, because the maximum outer diameter of the top cone sleeve 33 is greater than the maximum outer diameter of the top cone head 32, under the combined action of the elastic recovery force of the spring rod 36, the gravity of the wedge and the inclined surface of the end of the spring rod, the spring rod 36 exceeds the gap between the top cone sleeve 33 and the top cone head 32, slides down the top cone head 32 until the top cone head, the chuck 34 and the wedge are disassembled.

[0050] As shown in Figure 2 , Figure 8 , a circular hole at the end of the umbrella-shaped expansion joint of the upper guide sleeve 13 is provided with a ring groove, which thins the material thickness of the upper guide sleeve at the position, increases the elasticity of the upper guide sleeve, facilitates the opening of the umbrella-shaped expansion joint and the insertion of the large head section of the stepped shaft 12 into the upper guide sleeve. In the utility model, the ring groove is used in cooperation with the umbrella-shaped expansion joint, and the inner diameter of the upper guide sleeve can be expanded by 20%.

[0051] As shown in Figure 14 , Figure 15 , the top of the top wedge 4 is diagonally provided with 1 to 2 pairs of lifting lugs, and 1 to 2 steel wire ropes 8 are diagonally hung on the top guide rail 6 through the lifting lugs. In the utility model, 1 pair of lifting lugs is used, and the wedge is diagonally hung on the top guide rail by 1 steel wire rope for protection, the steel wire rope that grows out is stored in the rear cavity at the top of the wedge, and once the wedge is hit and falls, the steel wire rope will pull the wedge to prevent accidents.

[0052] As shown in Figure 7 , Figure 10 , Figure 5 , the end surface of the large head section of the stepped shaft 12, the conical body end surface of the lower guide column 21 and the bottom surface of the combined shaft 31 are respectively provided with hexagonal wrench holes, so that a hexagonal wrench is inserted into the hole when tightening the screw, preventing it from idling.

[0053] As shown in Figure 16As shown, the upper and lower adjacent guide rails 6 are fixed with the sub guide rails 9 perpendicular to the guide rails, the sharp wedge fixed with the plug-in sharp wedge wall surface and top surface mounting and dismounting mechanism is installed on the sub guide rails, and the number of the guide rails 6 and the sub guide rails 9 is equal to the number of the inner C-shaped supports 7.

[0054] As shown, Figure 17 The sharp wedges installed with the plug-in sharp wedge mounting and dismounting mechanism are fixed on any node of the wall surface and top surface sharp wedges respectively, and the ordinary hook type sharp wedges are installed around. In the embodiment, the clear size of the anechoic chamber is 100m (length) * 80m (width) * 48m (height), 6 rows of the sharp wedges containing the plug-in sharp wedge mounting and dismounting mechanism are installed on the wall surface in staggered transverse manner, and 10 rows of the sharp wedges containing the plug-in sharp wedge mounting and dismounting mechanism are installed on the top surface in staggered short side manner. When the sharp wedge at any point needs to be replaced, the nearest plug-in sharp wedge is found first, and then the plug-in sharp wedge is vertically dismounted, and then the other hook type ordinary sharp wedges can be sequentially dismounted, without the need of dismounting the wall surface sharp wedges from top to bottom row by row or dismounting the top surface sharp wedges from one side to the other side row by row, thereby saving the time for replacing the new sharp wedge, reducing the labor intensity, and improving the work efficiency. The utility model has the outstanding technical innovation effect, and is especially suitable for the sharp wedge maintenance and replacement of the large wind tunnel anechoic chamber.

Claims

1. A pluggable wedge wall and ceiling installation and disassembly mechanism, comprising a wedge (4), a keel (5), and a guide rail (6), wherein the wall and ceiling keel is supported on the floor of the soundproof room suite, the guide rail is fixed to the wall and ceiling keel, and the wedge (4) is installed on the wall and ceiling guide rail, characterized in that: It also includes an upper fixing component (1), a lower fixing component (2), a top fixing component (3) and an inner C-shaped bracket (7). The wedge (4) is a single-pointed wedge. The inner C-shaped bracket (7) is welded to the base inside the wedge. Two to three upper fixing components (1) are installed on the upper part of the wall wedge. Two to three lower fixing components (2) are installed on the lower part of the wall wedge. Four to six top fixing components (3) are installed on the top of the top wedge. The upper fixing component (1) consists of an upper conical sleeve (11), a stepped shaft (12) and an upper guide sleeve (13). The stepped shaft (12) is divided into three sections. The small end section is threaded, the middle section is a shaft, and the outer end face of the large end section is a slope. The small end section is screwed to the guide rail (6) on the wall by an anti-slip nut. The upper conical sleeve (11) is sleeved on the shaft of the stepped shaft. The end of the upper conical sleeve (11) facing the large end of the stepped shaft is flared. The upper guide sleeve (13) is a sleeve with one end closed. Its closed end extends with a screw and is fixed to the inner C-shaped bracket (7) in the wedge (4) by an anti-slip nut. Its open end is a slope with a larger outer side and a smaller inner side. The outer wall of the upper guide sleeve (13) is uniformly line-cut with 8 to 14 umbrella-shaped expansion joints, and the end of the expansion joints is provided with round holes. The lower fixing component (2) consists of a lower guide post (21) and a lower guide sleeve (22). One end of the lower guide post (21) extends with a screw and is screwed to the guide rail (6) on the wall via an anti-slip nut. The other end of the lower guide post (21) is a cone. The lower guide sleeve (22) is a sleeve with one end closed. The closed end of the lower guide sleeve (22) extends with a screw and is fixed to the inner C-shaped bracket (7) in the wedge via an anti-slip nut. The open end of the lower guide sleeve (22) is flexibly connected to the lower guide post (21). The top fixing assembly (3) consists of a combined shaft (31), a top cone head (32), a top cone sleeve (33), a chuck (34), a spring sleeve (35), a spring rod (36), and a positioning nut (37). The upper and lower ends of the combined shaft (31) are threaded. The top cone head (32) is a concave cone head with a threaded hole in the center. The upper end of the combined shaft is screwed to the top guide rail (6) via an anti-slip nut, and the lower end of the combined shaft is screwed to the top cone head (32). The lower end of the top cone sleeve (33) is a boss-shaped structure with upper and lower inclined surfaces and is sleeved on the combined shaft. The chuck (34) is cylindrical, with 3 to 4 threaded round holes on the cylindrical wall in the middle part. The spring sleeve (35) is closed at one end and closed at the other end. The cylinder is open at one end, and a central hole is provided on the closed end. The outer wall of the spring sleeve is threaded and screwed with a positioning nut (37). The open end of the spring sleeve is screwed into the threaded circular hole in the wall of the collet (34) and welded to the collet after being positioned by the positioning nut. The position and number of the spring sleeves correspond to the threaded circular holes on the wall of the collet. The spring rod (36) is a stepped shaft shape. The end face of its thick rod section is chamfered and extends into the collet by 3 to 6 mm into the threaded circular hole. Its thin rod section is sleeved with the spring and extends to the outside of the central hole of the spring sleeve. A positioning pin is installed on the stepped shaft outside the central hole. The upper surface of the collet (34) is provided with 3 to 4 fixing holes and is fixed to the inner C-shaped bracket (7) of the top wedge.

2. The plug-in wedge wall and top surface installation and disassembly mechanism according to claim 1, characterized in that: An annular groove is provided outside the circular hole at the end of the expansion joint of the upper guide sleeve (13).

3. The plug-in wedge wall and top surface installation and disassembly mechanism according to claim 1, characterized in that: The top wedge (4) has 1 to 2 pairs of lifting lugs installed diagonally at the top, and 1 to 2 steel wire ropes (8) are hung diagonally on the top guide rail (6) via the lifting lugs.

4. The plug-in wedge wall and top surface installation and disassembly mechanism according to claim 1, characterized in that: The upper fixing assembly has a large end face of the stepped shaft (12), the lower fixing assembly has a tapered end face of the lower guide post (21), and the top fixing assembly has a bottom face of the top cone (32).

5. The plug-in wedge wall and top surface installation and disassembly mechanism according to claim 1, characterized in that: The combined shaft (31) and the top cone (32) in the top fixing assembly are made as one piece.

6. The plug-in wedge wall and top surface installation and disassembly mechanism according to claim 1, characterized in that: A secondary guide rail (9) perpendicular to the guide rail is fixed on the guide rail (6), and the wedge with the plug-in wedge wall and top surface mounting and disassembly mechanism is fixed on the secondary guide rail (9).

7. The plug-in wedge wall and top surface installation and disassembly mechanism according to claim 1, characterized in that: The maximum outer diameter of the upper conical sleeve (11) in the upper fixed component (1) is greater than the maximum outer diameter of the large end section of the stepped shaft (12).

8. The plug-in wedge wall and top surface installation and disassembly mechanism according to claim 1, characterized in that: The maximum outer diameter of the top cone sleeve (33) in the top fixing component (3) is greater than the maximum outer diameter of the top cone head (32).

9. The plug-in wedge wall and top surface installation and disassembly mechanism according to claim 1, characterized in that: The wedge (4) equipped with the plug-in wedge wall and top surface installation and removal mechanism is fixed on any node or any row of nodes of the wall wedge and the top wedge, and hook wedges are installed around it.

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