High-strength computer room floor supporting device

Abstract

The invention relates to the technical field of computer room supporting devices, and discloses a high-strength computer room floor supporting device which comprises a bottom plate and a top plate, a partition plate is fixedly connected to the top of the bottom plate, cushion blocks are fixedly connected to the four corners of the top of the partition plate, and a cushion plate is fixedly connected to the tops of the four cushion blocks; a plurality of air holes are formed in the base plate, a drying agent is placed in a gap between the base plate and the partition plate, a peripheral frame is fixedly connected to the top of the base plate, a plurality of window holes are formed in the peripheral frame, and the top plate is located at the top of the peripheral frame. The drying agent, the vent holes and the window holes are arranged to form an efficient ventilation system, moisture accumulation can be effectively avoided, moisture corrosion or function degradation of all parts can be prevented, meanwhile, the supporting base bears main support when the top plate is located at the low position, the bearing pressure of the lifting mechanism is relieved, moisture permeation is blocked, long-term stable work of the lifting mechanism is guaranteed, and the service life of the lifting mechanism is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of computer room support devices, and particularly relates to a high-strength computer room floor support device. BACKGROUND

[0002] In the modern information society, computer rooms, as the core hub of data storage, processing and transmission, their stable operation is directly related to the normal operation of various industries. With the rapid development of information technology, the density of equipment in the computer room is increasing, and the requirements for computer room infrastructure are also increasing. Among them, the floor support device, as an important part of the computer room floor system, not only needs to bear the weight generated by the computer room equipment, cables and personnel activities, but also needs to provide a stable installation foundation for the equipment, while meeting the special needs of ventilation, wiring, moisture-proof and other aspects of the computer room. In the long-term use process, the complexity of the computer room environment, such as ground moisture, external vibration and other factors, will have a significant impact on the performance and service life of the support device, therefore, the development of high-performance computer room floor support devices has become one of the key links to ensure the safe and stable operation of computer rooms. In the prior art, the computer room floor support device is usually composed of a base, a support column, a crossbeam and a panel. The base is in direct contact with the ground, and the stability of the overall structure is ensured by expansion bolts and other fixing methods; the support column, as the main load-bearing component, connects the base and the crossbeam, and its height is mostly fixed or adjusted within a limited range through a simple screw adjustment structure; the crossbeam is used to connect each support column to form an overall frame structure to disperse the pressure borne by the panel; the panel is laid on top of the crossbeam to provide a flat surface for equipment placement and personnel activities. Some support devices will set a simple rubber pad between the base and the support column to achieve a certain damping effect, and a gap is reserved under the panel for ventilation and wiring, but the ventilation structure is relatively simple, and air circulation is usually only through the natural gap between the panel and the ground. However, in actual use scenarios, the computer room floor support device of the prior art has obvious deficiencies. In humid areas or rainy seasons, moisture is easily generated on the floor of the computer room. Since the existing support device lacks a special moisture-proof structure, the moisture will penetrate into the interior through the gaps of the support device, causing the metal components such as the support column and the crossbeam to rust, reducing the structural strength, and in severe cases, even affecting the load-bearing capacity of the support device, threatening the safety of the computer room equipment. At the same time, when encountering vibration such as earthquakes, the simple damping structure of the existing device relying on the rubber pad is difficult to effectively cope with the influence of transverse and longitudinal waves, and the vibration will be directly transmitted to the computer room equipment through the support device, which may cause the internal components of the equipment to loosen, data loss or even hardware damage. Therefore, the present application provides a high-strength computer room floor support device to solve the deficiencies in the prior art. SUMMARY

[0003] The application aims to provide a high-strength computer room floor support device to solve the problems mentioned in the background.

[0004] To achieve the above-mentioned purposes, the application is implemented by the following technical solutions: a high-strength computer room floor support device, comprising a bottom plate and a top plate, the top of the bottom plate is fixedly connected with a partition plate, the top corners of the partition plate are fixedly connected with four cushion blocks, the top of the four cushion blocks is fixedly connected with a cushion plate, a plurality of air holes are formed in the inside of the cushion plate, a drying agent is placed in the gap between the cushion plate and the partition plate, the top of the cushion plate is fixedly connected with a peripheral frame, a plurality of window holes are formed in the inside of the peripheral frame, the top plate is located at the top of the peripheral frame, two shockproof mechanisms, two buffer mechanisms, a lifting mechanism and two support seats are arranged between the cushion plate and the top plate, the bottom of the support seat is fixedly connected to the top of the cushion plate, and the top of the support seat is attached to the bottom of the top plate for supporting the top plate.

[0005] Preferably, the shockproof mechanism comprises a sleeve, two sealing members are fixedly connected to the inside of the sleeve, and the two sealing members are located at the two ports of the sleeve, and a sliding rod is slidably connected to the inside of the two sealing members.

[0006] Preferably, one end of the sliding rod is fixedly connected with a connecting plate, one end of the sleeve and the outside of the connecting plate are rotatably connected with a connecting seat, and the outside of the two connecting seats is fixedly connected with the bottom of the top plate and the top of the cushion plate, respectively.

[0007] Preferably, a piston is fixedly connected to the outside of the sliding rod, two flow-through holes are formed in the inside of the piston, and the cavity surrounded by the sleeve and the two sealing members is filled with damping oil.

[0008] Preferably, the other end of the sleeve is fixedly connected with an arc-shaped rod, one end of the arc-shaped rod and one side of the connecting plate are fixedly connected with an assembly seat one, a telescopic rod is rotatably connected to the inside of the two assembly seat ones, and the outside of the telescopic rod is sleeved with a spring one.

[0009] Preferably, the buffer mechanism comprises two fixed plates one, the bottom of the fixed plate one is fixedly connected to the top of the cushion plate, a guide rod is fixedly connected to the proximal side of the two fixed plates one, two sliding blocks are slidably connected to the outside of the guide rod, and the bottom of the sliding block is slidably connected with the top of the cushion plate.

[0010] Preferably, the outside of the guide rod is sleeved with two springs two, one end of the spring two is fixedly connected with one side of the fixed plate one, and the other end of the spring two is fixedly connected with one side of the sliding block.

[0011] Preferably, the top of the sliding block is fixedly connected with an assembly seat two, a groove is formed in the top of the assembly seat two, a connecting rod one is rotatably connected to the inner side of the groove, and the top of the connecting rod one is rotatably connected with a supporting plate.

[0012] Preferably, the lifting mechanism comprises a motor and a fixed plate two, the motor is installed on the top of the base plate, the bottom of the fixed plate two is fixedly connected to the top of the base plate, and the output end of the motor is fixedly connected with a lead screw.

[0013] Preferably, the outer side of the lead screw is threadedly connected with a threaded block, the top of the threaded block is rotatably connected with a connecting rod two, the outer side of the connecting rod two is rotatably connected with two link blocks, and the top of the link block is fixedly connected with the bottom of the top plate.

[0014] To sum up, the present application has the following at least one beneficial technical effect: 1. The device has excellent moisture-proof and protection performance. The dry agent, the air hole and the window hole form a high-efficiency ventilation system, which can effectively prevent moisture accumulation and prevent the components from being corroded or degraded in function. Meanwhile, the support seat bears the main support when the top plate is in a low position, reduces the bearing pressure of the lifting mechanism, blocks the penetration of moisture, ensures the long-term stable work, and prolongs the service life.

[0015] 2. The device has remarkable anti-seismic effect and can effectively respond to the influence of transverse waves and longitudinal waves in the earthquake. In the face of transverse waves, the resistance of the damping oil and the buffering force of the spring are used to reduce the horizontal shaking amplitude. For longitudinal waves, the spring and the damping rod are used to buffer and remove the vertical impact force, avoid direct damage to the bearing structure, and ensure the safe operation of the equipment room. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a perspective view of the present application; Figure 2 It is a schematic view of the internal structure of the peripheral frame of the present application; Figure 3 It is a schematic view of the structure of the lifting mechanism of the present application; Figure 4 It is Figure 3 It is an enlarged view of position A in the middle; Figure 5 It is a schematic view of the structure of the anti-seismic mechanism of the present application; Figure 6 It is Figure 5 It is an enlarged view of position B in the middle; Figure 7 It is a schematic view of the structure of the buffering mechanism of the present application.

[0017] 1, bottom plate; 2, partition; 3, cushion block; 4, cushion plate; 5, air hole; 6, peripheral frame; 7, top plate; 8, window hole; 9, shockproof mechanism; 901, sleeve; 902, sealing element; 903, sliding rod; 904, connecting plate; 905, connecting seat; 906, flow hole; 907, arc-shaped rod; 908, assembly seat one; 909, telescopic rod; 910, spring one; 911, piston; 10, buffer mechanism; 1001, fixed plate one; 1002, guide rod; 1003, sliding block; 1004, assembly seat two; 1005, groove; 1006, spring two; 1007, connecting rod one; 1008, supporting plate; 1009, damping rod; 11, lifting mechanism; 1101, motor; 1102, screw rod; 1103, fixed plate two; 1104, threaded block; 1105, connecting rod two; 1106, link block; 12, support seat. DETAILED DESCRIPTION

[0018] The above description is made in conjunction with the accompanying drawings Figure 1 - the accompanying drawings Figure 7 The application will be further described in detail.

[0019] The application provides a high-strength computer room floor support device, which comprises a bottom plate 1 and a top plate 7. The bottom plate 1 is used to directly contact the ground and provide stable basic support for the whole device. The top of the bottom plate 1 is fixedly connected with a partition 2. The top of the partition 2 is fixedly connected with cushion blocks 3 at four corners. The top of the four cushion blocks 3 is fixedly connected with a cushion plate 4. The partition 2 and the cushion plate 4 are separated by the cushion blocks 3 to form a certain gap space. A plurality of air holes 5 are formed in the interior of the cushion plate 4. Dryers are placed in the middle gap between the cushion plate 4 and the partition 2. The dryers absorb moisture in the surrounding environment. At the same time, the air holes 5 can promote air circulation, so that the moisture can enter the gap and be absorbed by the dryers through the air holes 5, effectively preventing the moisture from penetrating upward.

[0020] The top plate 7 is located at the top of the peripheral frame 6. Two shockproof mechanisms 9, two buffer mechanisms 10, a lifting mechanism 11 and two support seats 12 are arranged between the cushion plate 4 and the top plate 7. The bottom of the support seat 12 is fixedly connected to the top of the cushion plate 4. The top of the support seat 12 is attached to the bottom of the top plate 7 to support the top plate 7. When the top plate 7 is at the lowest position, the two support seats 12 can play a major supporting effect, reducing the bearing pressure of the lifting mechanism 11, so that the lifting mechanism 11 will not be easily damaged due to long-term bearing, and can be used for a long time without being affected by moisture.

[0021] The shockproof mechanism 9 comprises a sleeve 901, two sealing members 902 are fixedly connected in the sleeve 901 and are located at two ports of the sleeve 901, a sliding rod 903 is slidably connected to the inner sides of the two sealing members 902, one end of the sliding rod 903 is fixedly connected with a connecting plate 904, one end of the sleeve 901 and the outer sides of the connecting plate 904 are rotatably connected with two connecting seats 905, the outer sides of the two connecting seats 905 are fixedly connected with the bottom of the top plate 7 and the top of the cushion plate 4 respectively, the outer side of the sliding rod 903 is fixedly connected with a piston 911, two flow holes 906 are formed in the piston 911, and the cavity surrounded by the sleeve 901 and the two sealing members 902 is filled with damping oil. When the earthquake generates a transverse wave, the machine room at the top of the top plate 7 will sway, at this time, the sliding rod 903 drives the piston 911 to move in the sleeve 901, the damping oil flows through the flow holes 906, and under the resistance of the damping oil, the swaying effect caused by the transverse wave can be reduced. The other end of the sleeve 901 is fixedly connected with an arc-shaped rod 907, one end of the arc-shaped rod 907 and one side of the connecting plate 904 are fixedly connected with two assembly seats 908, the inner sides of the two assembly seats 908 are rotatably connected with an extension rod 909, the outer side of the extension rod 909 is sleeved with a spring 910, in the moving process of the sliding rod 903, the extension rod 909 will be stretched and contracted, the spring 910 will be deformed, and the elastic restoring force of the spring 910 can play an auxiliary buffering role, further enhancing the inhibition effect on the transverse wave swaying.

[0022] The buffer mechanism 10 comprises two fixed plates 1001, the bottom of the fixed plate 1001 is fixedly connected to the top of the cushion plate 4, the proximal sides of the two fixed plates 1001 are fixedly connected with guide rods 1002, the outer sides of the guide rods 1002 are slidably connected with two sliding blocks 1003, the bottom of the sliding block 1003 is slidably connected with the top of the cushion plate 4, the guide rods 1002 provide a guide for the sliding of the sliding blocks 1003, and the movement direction of the sliding blocks 1003 is stable.

[0023] The outer part of the guide rod 1002 is sleeved with two springs 1006, one end of the spring 1006 is fixedly connected with one side of the fixed plate 1001, the other end of the spring 1006 is fixedly connected with one side of the sliding block 1003, the top of the sliding block 1003 is fixedly connected with an assembly seat 1004, the top of the assembly seat 1004 is provided with a groove 1005, the inner side of the groove 1005 is rotatably connected with a connecting rod 1007, the top end of the two connecting rods 1007 is rotatably connected with a supporting plate 1008, the top of the supporting plate 1008 is fixedly connected with the bottom of the top plate 7, one side of the assembly seat 1004 is provided with a damping rod 1009, one end of the damping rod 1009 is fixedly connected with the top end of the fixed plate 1001. When the machine room shakes up and down due to the earthquake (influenced by the longitudinal wave), the impact force will be transmitted to the connecting rod 1007 through the supporting plate 1008, so as to drive the connecting rod 1007 to drive the assembly seat 1004 and the sliding block 1003 to slide along the guide rod 1002, the sliding block 1003 will press the spring 1006, the spring 1006 will be deformed to absorb part of the impact force, and the damping rod 1009 will generate a damping effect on the sliding of the sliding block 1003, so as to buffer and remove the impact force caused by the longitudinal wave, and improve the anti-seismic effect of the machine room.

[0024] The lifting mechanism 11 comprises a motor 1101 and a fixed plate 1103, the motor 1101 is installed on the top of the pad 4, the bottom of the fixed plate 1103 is fixedly connected on the top of the pad 4, the output end of the motor 1101 is fixedly connected with a lead screw 1102, one end of the lead screw 1102 is rotatably connected with one side of the fixed plate 1103, the outer side of the lead screw 1102 is threadedly connected with a threaded block 1104, the top of the threaded block 1104 is rotatably connected with a connecting rod 1105, the outer side of the connecting rod 1105 is rotatably connected with two link blocks 1106, the top of the link block 1106 is fixedly connected with the bottom of the top plate 7. The motor 1101 is started to drive the lead screw 1102 to rotate, under the thread cooperation of the lead screw 1102 and the threaded block 1104, the threaded block 1104 will move axially along the lead screw 1102, thereby driving the connecting rod 1105 to deflect, the connecting rod 1105 drives the top plate 7 through the link block 1106, so that the position of the top plate 7 moves up, and the height of the top plate 7 is adjusted.

[0025] Specifically, first, the bottom plate 1 is in direct contact with the ground, providing a stable base support for the entire support device, ensuring that the device will not affect the overall stability due to the bottom sliding during subsequent use; then, the gap between the partition plate 2 and the pad plate 4 is reasonably utilized, the built-in desiccant can continuously adsorb moisture in the surrounding environment, at the same time, the air inlet hole 5 opened in the pad plate 4 can guide the air above the device to flow into the gap, the window hole 8 in the peripheral frame 6 promotes the circulation of air inside and outside the device, the air inlet hole 5 and the window hole 8 cooperate to form an efficient ventilation system, effectively preventing moisture from accumulating inside the device, thereby preventing the device components from rusting or degrading due to moisture; when the top plate 7 is at the lowest position, the top of the two support seats 12 is tightly attached to the bottom of the top plate 7, at this time the support seat 12 bears the main support function, effectively dispersing the weight of the top plate 7 and the floor above the machine room to the pad plate 4, this design not only reduces the bearing pressure of the lifting mechanism 11, but also prevents the lifting mechanism 11 from producing structural fatigue due to long-term stress, at the same time, since the support seat 12 directly blocks the penetration of moisture to the lifting mechanism 11, the lifting mechanism 11 can maintain good working condition in a dry environment, prolonging its service life; When the height of the top plate 7 needs to be adjusted, the motor 1101 is started, and the power output by the motor 1101 drives the screw rod 1102 to start rotating. The rotation of the screw rod 1102 promotes the threaded block 1104 connected with it in a threaded manner to move along the screw rod 1102 in an axial direction smoothly. The movement of the threaded block 1104 drives the connecting rod two 1105 to deflect at an angle. The connecting rod two 1105 transmits the pushing force to the top plate 7 through the connecting block 1106 fixedly connected with the bottom of the top plate 7, so that the top plate 7 moves upward smoothly against the gravity of itself and the load above, realizes the precise adjustment of the height of the computer room floor, and meets the use requirements of the height of the computer room floor in different scenes. When an earthquake occurs, the computer room at the top of the top plate 7 will shake. If horizontal shaking caused by transverse waves occurs, the shaking will cause the top plate 7 to deviate to one side, and then promote the sliding rod 903 in the shockproof mechanism 9 to slide in the sleeve 901. The sliding rod 903 drives the piston 911 to move synchronously. At this time, the damping oil in the sleeve 901 flows slowly through the through hole 906 on the piston 911. The resistance generated by the flow of the damping oil will effectively slow down the moving speed of the piston 911, thereby reducing the horizontal shaking amplitude caused by transverse waves. At the same time, in the moving process of the sliding rod 903, the telescopic rod 909 will be stretched and contracted correspondingly. The spring one 910 sleeved outside the telescopic rod 909 will be elastically deformed. The elastic restoring force of the spring one 910 will generate a reverse damping force to the movement of the sliding rod 903, further enhancing the inhibition effect on the horizontal shaking. If the earthquake produces longitudinal waves to cause the computer room to shake up and down, the impact force in the vertical direction will be transmitted to the supporting plate 1008 through the top plate 7. The supporting plate 1008 disperses the impact force to the two connecting rods one 1007. The connecting rods one 1007 push the assembly seat two 1004 and the sliding block 1003 to slide to both sides along the guide rod 1002 under the action of the impact force. The sliding of the sliding block 1003 will extrude the spring two 1006 outside the guide rod 1002. The spring two 1006 is deformed to absorb part of the impact force. At the same time, the damping rod 1009 on one side of the assembly seat two 1004 will generate a damping effect on the sliding of the sliding block 1003, delaying the sliding speed of the sliding block 1003. The coordinated action of the spring two 1006 and the damping rod 1009 will gradually buffer and remove the impact force generated by the longitudinal waves, avoiding the direct action of the impact force on the bearing structure of the device, thereby significantly improving the anti-seismic performance of the computer room floor and ensuring the safe operation of the computer room equipment.

[0026] Working principle: first, the base plate 1 is used to directly contact the ground, then, the desiccant between the partition plate 2 and the pad plate 4 is used to prevent moisture, and the inside of the pad plate 4 is provided with air holes 5 and the inside of the peripheral frame 6 is provided with window holes 8, which are ventilated to avoid moisture accumulation, when the top plate 7 is at the lowest point, the two support seats 12 can play a supporting effect, so that the lifting mechanism 11 is not affected by moisture and can be used for a long time, the starting motor 1101 drives the screw rod 1102 to rotate, the threaded block 1104 drives the connecting rod two 1105 to deflect, and then the position of the top plate 7 is moved upward; when the earthquake occurs, the machine room at the top of the top plate 7 will shake, at this time the sliding rod 903 drives the piston 911 to move, under the action of damping oil, the shaking effect caused by the transverse wave is reduced, and the telescopic rod 909 and the spring one 910 can play the role of auxiliary buffering, and when the machine room shakes up and down, the impact force will be transmitted to the connecting rod one 1007 through the supporting plate 1008, then the sliding block 1003 will extrude the spring two 1006, and under the cooperation of the damping rod 1009, the impact force caused by the longitudinal wave can be buffered and removed, so that the anti-seismic effect of the machine room is improved.

[0027] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application being defined by the appended claims and their equivalents.

Claims

1. A high-strength computer room floor support device, comprising a bottom plate (1) and a top plate (7), characterized in that: The top of the bottom plate (1) is fixedly connected to a partition plate (2), and pads (3) are fixedly connected to the four corners of the top of the partition plate (2). The tops of the four pads (3) are fixedly connected to a pad plate (4), and a plurality of air holes (5) are provided inside the pad plate (4). A desiccant is placed in the gap between the pad plate (4) and the partition plate (2). The top of the pad plate (4) is fixedly connected to an outer frame (6), and a plurality of window holes (8) are provided inside the outer frame (6). The top plate (7) is located on the top of the outer frame (6). Two shockproof mechanisms (9), two buffer mechanisms (10), a lifting mechanism (11) and two support seats (12) are provided between the pad plate (4) and the top plate (7). The bottom of the support seat (12) is fixedly connected to the top of the pad plate (4), and the top of the support seat (12) is in contact with the bottom of the top plate (7) for supporting the top plate (7).

2. A high-strength computer room floor support device according to claim 1, characterized in that: The shockproof mechanism (9) comprises a sleeve (901), wherein two sealing members (902) are fixedly connected to the interior of the sleeve (901), and the two sealing members (902) are located at two ends of the sleeve (901), and a sliding rod (903) is slidably connected to the inner sides of the two sealing members (902).

3. A high-strength computer room floor support device according to claim 2, characterized in that: One end of the sliding rod (903) is fixedly connected to a connecting plate (904), one end of the sleeve (901) and the outer side of the connecting plate (904) are rotatably connected to a connecting seat (905), and the outer sides of the two connecting seats (905) are respectively fixedly connected to the bottom of the top plate (7) and the top of the pad (4).

4. A high-strength computer room floor support device according to claim 3, characterized in that: The outer side of the sliding rod (903) is fixedly connected to a piston (911), and two flow holes (906) are provided inside the piston (911). The cavity surrounded by the sleeve (901) and the two sealing members (902) is filled with damping oil.

5. A high-strength computer room floor support device according to claim 4, characterized in that: The other end of the sleeve (901) is fixedly connected to an arc-shaped rod (907), one end of the arc-shaped rod (907) and one side of the connecting plate (904) are fixedly connected to an assembly seat (908), and the inner sides of the two assembly seats (908) are rotatably connected to a telescopic rod (909), and the outer side of the telescopic rod (909) is provided with a spring (910).

6. A high-strength computer room floor support device according to claim 1, characterized in that: The buffer mechanism (10) comprises two fixed plates (1001), the bottom of each fixed plate (1001) being fixedly connected to the top of the pad (4), the adjacent sides of the two fixed plates (1001) being fixedly connected to guide rods (1002), the outer sides of the guide rods (1002) being slidably connected to two sliders (1003), and the bottom of each slider (1003) being slidably connected to the top of the pad (4).

7. A high-strength computer room floor support device according to claim 6, characterized in that: The guide rod (1002) is externally sleeved with two springs (1006), one end of the spring (1006) is fixedly connected to one side of the fixed plate (1001), and the other end of the spring (1006) is fixedly connected to one side of the slider (1003).

8. A high-strength computer room floor support device according to claim 7, characterized in that: The top of the slider (1003) is fixedly connected to the second assembly seat (1004), the top of the second assembly seat (1004) is provided with a groove (1005), the inner side of the groove (1005) is rotatably connected to the first connecting rod (1007), the top ends of the two first connecting rods (1007) are rotatably connected to the supporting plate (1008), the top of the supporting plate (1008) is fixedly connected to the bottom of the top plate (7), a damping rod (1009) is installed on one side of the second assembly seat (1004), and one end of the damping rod (1009) is fixedly connected to the top end of the first fixed plate (1001).

9. The high-strength computer room floor support device according to claim 1, characterized in that: The lifting mechanism (11) comprises a motor (1101) and a second fixing plate (1103), wherein the motor (1101) is mounted on the top of the backing plate (4), the bottom of the second fixing plate (1103) is fixedly connected to the top of the backing plate (4), the output end of the motor (1101) is fixedly connected to a screw rod (1102), and one end of the screw rod (1102) is rotatably connected to one side of the second fixing plate (1103).

10. A high-strength computer room floor supporting device according to claim 9, characterized in that: The outer side of the screw rod (1102) is threadedly connected to a threaded block (1104), the top of the threaded block (1104) is rotatably connected to a second connecting rod (1105), the outer side of the second connecting rod (1105) is rotatably connected to two connecting blocks (1106), and the top of the connecting block (1106) is fixedly connected to the bottom of the top plate (7).

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