Network security communication signal box
By using a combination of telescopic rod and mounting plate in the communication signal box, the wall-mounted installation of the signal box is achieved, which solves the problem that the signal box cannot be fixed on the wall in the prior art, and simplifies the disassembly process, improving the safety and convenience of use.
Patent Information
- Application Number
- CN202510036063.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-04-11
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing communication signal box cannot be directly fixed to the wall, occupy space and is prone to collisions, and the disassembly process is complicated and requires special tools.
A network security communication signal box is designed, which adopts a combination of a first telescopic rod, a second telescopic rod and a mounting plate, which can be directly installed on the wall and quickly disassembled and fixed between the installation mechanism and the box body, simplifying the disassembly and assembly process.
It realizes wall-mounted installation of signal boxes, saves space, improves usage safety, and simplifies the disassembly process, making operation more convenient.
Smart Images

Figure CN119815746A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of electronic equipment, and in particular to a network security communication signal box. Background Art
[0002] Network security usually refers to the security of computer networks, but in fact it can also refer to the security of computer communication networks. Computer communication networks are systems that interconnect several computers with independent functions through communication equipment and transmission media, and realize information transmission and exchange between computers with the support of communication software. Computer networks refer to systems that use communication means to connect several relatively dispersed independent computer systems, terminal devices and data devices for the purpose of sharing resources, and exchange data under the control of protocols. This requires the use of communication signal boxes as carriers.
[0003] However, the existing communication signal boxes still have the following technical problems when in use:
[0004] (1) Existing communication signal boxes are often placed directly on the top of the table when in use, and cannot be directly fixed to the wall. They take up a lot of space and are easily accidentally bumped, which will affect the normal use of the signal box.
[0005] (2) The current communication signal box is installed and fixed by multiple bolts. When internal damage occurs, the signal box cannot be quickly disassembled. Special tools are required during the disassembly process, which makes installation and disassembly troublesome.
[0006] Therefore, a network security communication signal box is now proposed to solve the above-mentioned problems. Summary of the invention
[0007] The object of the present invention is to provide a network security communication signal box to solve the problems raised in the above background technology.
[0008] To achieve the above object, the present invention provides the following technical solution: a network security communication signal box, comprising a box body, a touch screen is arranged at the front end of the box body, a control button is arranged at the lower end of the touch screen, a bottom cover is arranged horizontally at the lower end of the box body, the upper side of the bottom cover is in contact with the lower side of the box body, an air inlet is opened on the side wall of the bottom cover, and a mounting mechanism is fixed at the lower end of the bottom cover;
[0009] A dust cover is fixed on the upper side of the box body, heat dissipation ports are provided on the left and right sides of the dust cover, a dust net is fixed inside the heat dissipation port, an angle adjustment mechanism is fixed on the upper side of the dust cover, a fixing rod is fixed on the upper side of the angle adjustment mechanism, a first telescopic rod is fixed on the upper side of the fixing rod, a second telescopic rod is slidably provided inside the first telescopic rod, a mounting plate is fixed to the rear end of the second telescopic rod, a side wall of the mounting plate is threadedly provided with symmetrical first bolts, a cavity is provided inside the second telescopic rod, and a limiting mechanism is provided inside the cavity.
[0010] Preferably, the mounting mechanism includes a transverse plate, which is fixedly connected to the lower side of the bottom cover, and a limiting groove is provided at the left and right ends of the transverse plate, a limiting rod is fixed inside the limiting groove, a pressing plate is slidably provided outside the limiting rod, a clamping block is fixed to the side wall of the pressing plate, and a limiting block is fixed to the left and right sides of the box body, a clamping groove is provided on the side wall of the limiting block, and two clamping blocks are clamped with the clamping groove, and a first spring is sleeved on the outside of the limiting rod, one end of the first spring is fixedly connected to the inner wall of the limiting groove, and the other end of the first spring is fixedly connected to the side wall of the pressing plate.
[0011] Preferably, a mounting frame is fixed to the side wall of the transverse plate, evenly arranged mounting tubes are fixed inside the mounting frame, and cooling fans are fixed inside the evenly arranged mounting tubes.
[0012] Preferably, symmetrical fixing blocks are fixed to the upper and lower ends of the front side of the box body, a cross bar is commonly fixed between the symmetrical fixing blocks, symmetrical sliders are slidably provided on the outside of the two cross bars, a protective cover plate is fixed between the two groups of symmetrical sliders, a transparent plate is fixed to the side wall of the protective cover plate, a second bolt is threadedly provided on the side wall of the slider, one end of the second bolt is clamped with the side wall of the cross bar, a first handle is fixed to the side facing away from the two protective cover plates, and the rear sides of the two protective cover plates are slidably connected to the front side of the box body.
[0013] Preferably, the angle adjustment mechanism includes a limiting tube, which is fixedly connected to the upper side of the box body, an annular groove is provided on the inner wall of the limiting tube, a rotating plate is slidably arranged inside the annular groove, the upper side of the rotating plate is fixedly connected to the lower end of the fixed rod, and third bolts are threadedly arranged on the left and right sides of the limiting tube, and the close ends of the two third bolts are clamped with the side walls of the fixed rod.
[0014] Preferably, the limiting mechanism includes two moving blocks, both of which are slidably arranged inside the cavity, a second spring is commonly fixed on the side of the two moving blocks that are close to each other, and a circular clamping rod is fixed on the side of the two moving blocks that are away from each other, and the inner wall of the first telescopic rod is provided with evenly arranged clamping grooves, and the other ends of the two circular clamping rods are clamped in the clamping grooves.
[0015] Preferably, a circular plate is fixed to the rod wall of the fixing rod, a dust curtain is fixed to the lower side of the circular plate, an annular plate is fixed to the lower end of the dust curtain, and clamping mechanisms are fixed to the left and right sides of the circular plate and the annular plate.
[0016] Preferably, the fixing mechanism includes a pulling block, a cavity is provided on the left and right sides of the circular plate, the pulling block is slidably arranged inside the cavity, a moving rod is fixed to the side wall of the pulling block, the moving rod penetrates the side wall of the cavity and extends to the outside, a strip plate is fixed to the other end of the moving rod, a fixing block is fixed to the side wall of the strip plate at the lower end of the moving rod, a fixing groove is provided on the left and right sides of the annular plate, the fixing block is clamped with the fixing groove, a third spring is provided on the outside of the moving rod, one end of the third spring is fixedly connected to the side wall of the pulling block, the other end of the third spring is fixedly connected to the inner wall of the cavity, and a second handle is fixed to the side wall of the strip plate.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] 1) The present application provides a first telescopic rod, a second telescopic rod and a mounting plate, so that the box body can be directly mounted on the wall without occupying space and is not easily bumped during use, thereby ensuring safety in use;
[0019] 2) The bottom cover in the present application is fixed to the box body through the mounting mechanism. When the interior needs to be inspected, the bottom cover can be quickly disassembled without the need for special disassembly tools, which makes the operation very easy and convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the structure of the present invention;
[0021] Figure 2 for Figure 1 A schematic cross-sectional structure diagram of ;
[0022] Figure 3 It is a schematic diagram of the structure of the cross plate, the limit rod, the pressing plate and the clamping block;
[0023] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of part A;
[0024] Figure 5 It is a schematic diagram of the structure of the installation frame, installation pipe and cooling fan;
[0025] Figure 6 Schematic diagram of the cross-sectional structure of the limiting tube;
[0026] Figure 7 for Figure 2 A schematic diagram of the enlarged structure of part B;
[0027] Figure 8 It is a schematic diagram of the cross-sectional structure of the first telescopic rod and the second telescopic rod.
[0028] In the figure: 1 box body, 2 touch screen, 3 control button, 4 bottom cover, 5 dust cover, 6 dust net, 7 fixed rod, 8 first telescopic rod, 9 second telescopic rod, 10 mounting plate, 11 horizontal plate, 12 limit rod, 13 pressing plate, 14 card block, 15 limit block, 16 first spring, 17 mounting frame, 18 mounting pipe, 19 cooling fan, 20 fixed block, 21 horizontal rod, 22 slider, 23 protective cover, 24 transparent plate, 25 first handle, 26 limit tube, 27 rotating plate, 28 moving block, 29 second spring, 30 circular card rod, 31 circular plate, 32 dust curtain, 33 annular plate, 34 pull block, 35 moving rod, 36 strip plate, 37 fixing block, 38 third spring. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0030] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0031] Example:
[0032] See also Figure 1-8 , the present invention provides a technical solution:
[0033] A network security communication signal box comprises a box body 1, a touch screen 2 is arranged at the front end of the box body 1, a control button 3 is arranged at the lower end of the touch screen 2, the touch screen 2 and the control button 3 are used to debug or perform other operations on the signal box, a bottom cover 4 is arranged horizontally at the lower end of the box body 1, the upper side of the bottom cover 4 contacts the lower side of the box body 1, the bottom cover 4 is engaged with the lower end of the box body 1, and the bottom cover 4 and the box body 1 can be tightly fitted through the mounting mechanism, when it is necessary to repair the electrical components inside the box body 1, it is only necessary to release the mounting mechanism to disassemble the bottom cover 4, so as to facilitate the internal inspection, the whole process does not require complicated disassembly tools, nor does it require special disassembly personnel, it is simple and convenient, the side wall of the bottom cover 4 is provided with an air inlet, and the lower end of the bottom cover 4 is fixed with a mounting mechanism;
[0034] A dust cover 5 is fixed on the upper side of the box body 1, and heat dissipation ports are provided on the left and right sides of the dust cover 5. The dust cover 5 and the dust net 6 are provided to prevent dust from entering the interior of the box body 1, thereby damaging the internal electrical components. A dust net 6 is fixed inside the heat dissipation port, and an angle adjustment mechanism is fixed on the upper side of the dust cover 5. The angle adjustment mechanism is convenient for controlling the rotation angle of the fixing rod 7, so that the mounting plate 10 can be connected and fixed to walls at different angles. A fixing rod 7 is fixed on the upper side of the angle adjustment mechanism, and a first telescopic rod 8 is fixed on the upper side of the fixing rod 7. A second telescopic rod 9 is slidably provided inside the first telescopic rod 8, and a mounting plate 10 is fixed to the rear end of the second telescopic rod 9. The second telescopic rod 9 can be slidably connected inside the first telescopic rod 8. After moving to a certain distance, the first telescopic rod 8 and the second telescopic rod 9 can be limited and fixed by a limiting mechanism, so as to ensure the installation distance. The side wall of the mounting plate 10 is threaded with symmetrical first bolts, and a cavity is provided inside the second telescopic rod 9, and a limiting mechanism is provided inside the cavity.
[0035] The mounting mechanism includes a transverse plate 11, which is fixedly connected to the lower side of the bottom cover 4. A limiting groove is provided at the left and right ends of the transverse plate 11. A limiting rod 12 is fixed inside the limiting groove. A pressing plate 13 is slidingly provided outside the limiting rod 12. A clamping block 14 is fixed to the side wall of the pressing plate 13. A limiting block 15 is fixed to the left and right sides of the box body 1. A clamping groove is provided on the side wall of the limiting block 15. Both clamping blocks 14 are clamped with the clamping groove. A first spring 16 is sleeved on the outside of the limiting rod 12. One end of the first spring 16 is fixedly connected to the inner wall of the limiting groove. The first spring 16 The other end is fixedly connected to the side wall of the pressing plate 13. When the bottom cover 4 needs to be installed and fixed between the box body 1, the two first springs 16 pull the pressing plate 13 of the side wall to slide outside the limiting rod 12, and the pressing plate 13 drives the clamping block 14 of the side wall to clamp with the limiting block 15, so that the bottom cover 4 and the box body 1 are tightly connected and fixed. When the bottom cover 4 needs to be removed, the pressing plate 13 is pulled to both ends, so that the clamping block 14 of the side wall of the pressing plate 13 is separated from the limiting block 15, the limiting effect is released, and the bottom cover 4 can be directly removed.
[0036] A mounting frame 17 is fixed to the side wall of the horizontal plate 11, and evenly arranged mounting tubes 18 are fixed inside the mounting frame 17. Cooling fans 19 are fixed inside the evenly arranged mounting tubes 18. When used for a long time, if the internal temperature of the box body 1 is high, the cooling fan 19 can be started. The cooling fan 19 blows air into the interior of the box body 4 and discharges it through the heat dissipation port on the side wall of the dust cover 5 at the upper end, ensuring smooth airflow inside the box body 1, thereby achieving rapid heat dissipation and extending the service life of electrical components inside the signal box.
[0037] Symmetrical fixing blocks 20 are fixed to the upper and lower ends of the front side of the box body 1, and a cross bar 21 is fixed between the symmetrical fixing blocks 20. Symmetrical sliders 22 are slidably arranged on the outside of the two cross bars 21, and a protective cover plate 23 is fixed between the two groups of symmetrical sliders 22. A transparent plate 24 is fixed to the side wall of the protective cover plate 23, and a second bolt is threaded on the side wall of the slider 22. One end of the second bolt is clamped with the side wall of the cross bar 21, and a first handle 25 is fixed to the side away from the two protective cover plates 23. The rear sides of the two protective cover plates 23 are slidably connected to the front side of the box body 1. During the use of the signal box, in order to prevent accidental touching of the touch screen 2 and the control button 3, when the touch screen 2 and the control button 3 are not needed, the two protective covers 23 and the transparent plate 24 can be moved to the front end of the touch screen 2 and the control button 3 to effectively protect them, and by tightening the second bolt, the second bolt limits and fixes the slider 22 to the cross bar 21.
[0038] The angle adjustment mechanism includes a limiting tube 26, which is fixedly connected to the upper side of the box body 1. An annular groove is provided on the inner wall of the limiting tube 26, and a rotating plate 27 is slidably arranged inside the annular groove. The upper side of the rotating plate 27 is fixedly connected to the lower end of the fixing rod 7. The left and right sides of the limiting tube 26 are both threaded with third bolts, and the ends of the two third bolts that are close to each other are clamped with the side walls of the fixing rod 7. The angle of the fixing rod 7 can be adjusted according to the needs of installation. After adjusting to a suitable angle, the fixing rod 7 is clamped by tightening the third bolt, which facilitates the installation of the mounting plate 10 at various angles.
[0039] The limiting mechanism includes two moving blocks 28, both of which are slidably arranged inside the cavity, and a second spring 29 is commonly fixed to the side where the two moving blocks 28 are close to each other, and a circular clamping rod 30 is fixed to the side where the two moving blocks 28 are separated from each other. The inner wall of the first telescopic rod 8 is provided with evenly arranged clamping grooves, and the other ends of the two circular clamping rods 30 are clamped with the clamping grooves. When the second telescopic rod 9 inside the first telescopic rod 8 moves to a certain distance, the moving blocks 28 at both ends are driven to move by the second spring 29, and the moving blocks 28 drive the circular clamping rods 30 on the side walls to move, so that the first telescopic rod 8 and the second telescopic rod 9 are limited by the clamping between the circular clamping rods 30 and the clamping grooves. If it is necessary to change the distance between the first telescopic rod 8 and the second telescopic rod 9, the length of the first telescopic rod 8 and the second telescopic rod 9 can be changed by simply pulling or pressing hard.
[0040] A circular plate 31 is fixed to the rod wall of the fixed rod 7, a dust curtain 32 is fixed to the lower side of the circular plate 31, an annular plate 33 is fixed to the lower end of the dust curtain 32, and fixing mechanisms are fixed to the left and right sides of the circular plate 31 and the annular plate 33. When the signal box is not used for a long time, the limiting effect of the fixing mechanism on the annular plate 33 can be released, and the dust curtain 32 protects the outside of the entire signal box under the action of the gravity of the annular plate 33, thereby effectively preventing dust from the signal box.
[0041] The fixing mechanism includes a pulling block 34. Cavities are provided on the left and right sides of the circular plate 31. The pulling block 34 is slidably arranged inside the cavity. A moving rod 35 is fixed to the side wall of the pulling block 34. The moving rod 35 penetrates the side wall of the cavity and extends to the outside. A strip plate 36 is fixed to the other end of the moving rod 35. A fixing block 37 is fixed to the side wall of the strip plate 36 at the lower end of the moving rod 35. Fixing grooves are provided on the left and right sides of the annular plate 33. The fixing block 37 is clamped with the fixing groove. A third spring 38 is sleeved on the outside of the moving rod 35. One end of the third spring 38 is fixedly connected to the side wall of the pulling block 34, and the other end of the third spring 38 is fixedly connected to the inner wall of the cavity. A second handle is fixed to the side wall of the strip plate 36.
[0042] Working principle:
[0043] When in use, the telescopic lengths of the first telescopic rod 8 and the second telescopic rod 9 are adjusted, and the box body 1 is fixed to the wall through the cooperation of the mounting plate 10 and the first bolt, and the bottom cover 4 at the lower end of the box body 1 is connected and fixed to the box body 1 through the mounting mechanism, and the pressing plate 13 of the side wall is pulled by the two first springs 16, and the pressing plate 13 drives the clamping block 14 of the side wall to clamp with the limiting block 15, so as to quickly install and fix the bottom cover 4 to the box body 1;
[0044] During use, in order to avoid accidental touching of the touch screen 2 and the control button 3, the two protective covers 23 and the transparent plate 24 can be moved to the front end of the touch screen 2 and the control button 3 to effectively protect them. If the signal box is not used for a long time, the two fixing mechanisms can be released and the annular plate 33 can be moved down. The annular plate 33 drives the dust curtain 32 on the upper side to protect the outside of the signal box, effectively preventing dust from forming on the entire signal box and avoiding the accumulation of dust on the surface.
[0045] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the claims involved.
[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A network security communication signal box, comprising a box body (1), characterized in that: The front end of the box body (1) is provided with a touch screen (2), the lower end of the touch screen (2) is provided with a control button (3), the lower end of the box body (1) is provided with a bottom cover (4) in a transverse manner, the upper side of the bottom cover (4) is in contact with the lower side of the box body (1), the side wall of the bottom cover (4) is provided with an air inlet, and the lower end of the bottom cover (4) is fixed with a mounting mechanism; A dust cover (5) is fixed on the upper side of the box body (1), and heat dissipation ports are provided on the left and right sides of the dust cover (5), and a dust screen (6) is fixed inside the heat dissipation port. An angle adjustment mechanism is fixed on the upper side of the dust cover (5), and a fixing rod (7) is fixed on the upper side of the angle adjustment mechanism. A first telescopic rod (8) is fixed on the upper side of the fixing rod (7), and a second telescopic rod (9) is slidably arranged inside the first telescopic rod (8), and a mounting plate (10) is fixed to the rear end of the second telescopic rod (9), and a symmetrical first bolt is threadedly arranged on the side wall of the mounting plate (10), and a cavity is provided inside the second telescopic rod (9), and a limiting mechanism is arranged inside the cavity.
2. A network security communication signal box according to claim 1, characterized in that: The mounting mechanism comprises a transverse plate (11), wherein the transverse plate (11) is fixedly connected to the lower side of the bottom cover (4), a limiting groove is provided at the left and right ends of the transverse plate (11), a limiting rod (12) is fixed inside the limiting groove, a pressing plate (13) is slidably provided outside the limiting rod (12), a clamping block (14) is fixed to the side wall of the pressing plate (13), a limiting block (15) is fixed to the left and right sides of the box body (1), a clamping groove is provided on the side wall of the limiting block (15), two clamping blocks (14) are clamped to the clamping groove, a first spring (16) is sleeved on the outside of the limiting rod (12), one end of the first spring (16) is fixedly connected to the inner wall of the limiting groove, and the other end of the first spring (16) is fixedly connected to the side wall of the pressing plate (13).
3. A network security communication signal box according to claim 2, characterized in that: A mounting frame (17) is fixed to the side wall of the transverse plate (11), evenly arranged mounting tubes (18) are fixed inside the mounting frame (17), and cooling fans (19) are fixed inside the evenly arranged mounting tubes (18).
4. A network security communication signal box according to claim 1, characterized in that: Symmetrical fixing blocks (20) are fixed to the upper and lower ends of the front side of the box body (1); a cross bar (21) is fixed between the symmetrical fixing blocks (20); symmetrical sliders (22) are slidably arranged outside the two cross bars (21); a protective cover plate (23) is fixed between the two groups of symmetrical sliders (22); a transparent plate (24) is fixed to the side wall of the protective cover plate (23); a second bolt is threadedly arranged on the side wall of the slider (22); one end of the second bolt is clamped with the side wall of the cross bar (21); a first handle (25) is fixed to the side facing away from the two protective cover plates (23); and the rear sides of the two protective cover plates (23) are slidably connected to the front side of the box body (1).
5. A network security communication signal box according to claim 1, characterized in that: The angle adjustment mechanism comprises a limiting tube (26), the limiting tube (26) is fixedly connected to the upper side of the box body (1), an annular groove is provided on the inner wall of the limiting tube (26), a rotating plate (27) is slidably arranged inside the annular groove, the upper side of the rotating plate (27) is fixedly connected to the lower end of the fixing rod (7), third bolts are threadedly arranged on the left and right sides of the limiting tube (26), and the adjacent ends of the two third bolts are clamped with the side wall of the fixing rod (7).
6. A network security communication signal box according to claim 1, characterized in that: The limiting mechanism comprises two moving blocks (28), the two moving blocks (28) are slidably arranged inside the cavity, a second spring (29) is fixed to the adjacent sides of the two moving blocks (28), a circular clamping rod (30) is fixed to the separated sides of the two moving blocks (28), the inner wall of the first telescopic rod (8) is provided with evenly arranged clamping grooves, and the other ends of the two circular clamping rods (30) are clamped in the clamping grooves.
7. A network security communication signal box according to claim 1, characterized in that: A circular plate (31) is fixed to the rod wall of the fixing rod (7), a dustproof curtain (32) is fixed to the lower side of the circular plate (31), an annular plate (33) is fixed to the lower end of the dustproof curtain (32), and a clamping mechanism is fixed to the left and right sides of the circular plate (31) and the annular plate (33).
8. A network security communication signal box according to claim 7, characterized in that: The locking mechanism comprises a pulling block (34), a cavity is provided on the left and right sides of the circular plate (31), the pulling block (34) is slidably arranged inside the cavity, a moving rod (35) is fixed to the side wall of the pulling block (34), the moving rod (35) penetrates the side wall of the cavity and extends to the outside, a strip plate (36) is fixed to the other end of the moving rod (35), a locking block (37) is fixed to the side wall of the strip plate (36) at the lower end of the moving rod (35), a locking groove is provided on the left and right sides of the annular plate (33), the locking block (37) is engaged with the locking groove, a third spring (38) is sleeved on the outside of the moving rod (35), one end of the third spring (38) is fixedly connected to the side wall of the pulling block (34), the other end of the third spring (38) is fixedly connected to the inner wall of the cavity, and a second handle is fixed to the side wall of the strip plate (36).