Energy-saving and environment-friendly cooling tower core material bamboo tube water collector

Abstract

The utility model relates to the technical field of cooling towers, in particular to an energy-saving and environment-friendly cooling tower core material bamboo tube water collector which comprises three bamboo tubes A, four bamboo tubes B, four bamboo tubes C and three connecting plates, three connecting blocks A are installed at the upper ends of the outer sides of the bamboo tubes A, the bamboo tubes B and the bamboo tubes C, and positive C-shaped adjusting blocks are arranged on the upper sides of the connecting blocks A; a connecting and fixing unit is arranged between the positive C-shaped adjusting block and the connecting block A. Reverse C-shaped adjusting blocks are arranged on the lower sides of the two ends of the lower portions of the bamboo tube A and the bamboo tube B, connecting units are arranged between the reverse C-shaped adjusting blocks and the bamboo tube A and the bamboo tube B, and quick positioning units are arranged between the positive C-shaped adjusting block and the connecting plate and between the reverse C-shaped adjusting blocks and the connecting plate. By arranging the connecting and fixing unit, the connecting unit and the rapid positioning unit, the equipment can be rapidly replaced and installed, meanwhile, punching is not needed when the bamboo tube is installed, the replacing, maintaining and installing efficiency is improved, and the using effect of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling towers, in particular to an energy-saving and environmentally friendly cooling tower core material bamboo tube water collector. Background Art

[0002] A cooling tower is a device that uses water as a circulating coolant to absorb heat from a system and discharge it into the atmosphere to lower the water temperature. Its principle is to use the heat exchange between water and air flow to generate steam, and the steam evaporates and takes away the heat to achieve evaporative heat dissipation, convection heat transfer and radiation heat transfer. It is an evaporative heat dissipation device that dissipates the waste heat generated in industry or refrigeration and air conditioning to lower the water temperature to ensure the normal operation of the system. The device is generally barrel-shaped, hence the name cooling tower.

[0003] The cooling tower will generate water vapor when in use. In order to reduce the waste of water resources, a water collector will be installed inside the cooling tower to recycle the water vapor so that water resources can be circulated, reducing the waste of resources and capital consumption. At the same time, the water collector can be made according to different materials, such as a bamboo tube water collector made of bamboo tubes.

[0004] When bamboo tubes are used to make water collectors, they are connected together with bolts and nuts. The bolts and nuts are easy to rust during use. If one of the bamboo tubes in the water collector is damaged, it is inconvenient to replace it. In addition, the bamboo tubes need to be punched during installation, so there are certain gaps after installation, which will reduce the use effect of the water collector. For this reason, we propose an energy-saving and environmentally friendly cooling tower core material bamboo tube water collector to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that when bamboo tubes are used to make water collectors, the bamboo tubes are connected together by bolts and nuts, and the bolts and nuts are prone to rust during use. If one of the bamboo tubes in the water collector is damaged, it is inconvenient to replace it at this time, and the bamboo tubes need to be punched during installation, so that there are certain gaps after installation, which will reduce the use effect of the water collector. An energy-saving and environmentally friendly cooling tower core material bamboo tube water collector is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An energy-saving and environmentally friendly cooling tower core material bamboo tube water collector is designed, including three A bamboo tubes, four B bamboo tubes, and four C bamboo tubes. The A bamboo tubes, B bamboo tubes, and C bamboo tubes are semicircular and open downward. The A bamboo tube is located at the lower side of the B bamboo tube, and the A bamboo tube is located at the upper side of the C bamboo tube. Three connecting plates are arranged between the A bamboo tube and the B bamboo tube, between the A bamboo tube and the C bamboo tube, and on the upper side of the B bamboo tube. Two A sliding grooves are arranged on both sides of the upper and lower sides of the connecting plate. The upper ends of the outer sides of the A bamboo tube, the B bamboo tube, and the C bamboo tube are provided with mounting grooves. Three A connecting blocks are installed on the inner side of the installation groove by bolts, a positive C-type adjustment block is provided on the upper side of the A connecting block, a connecting and fixing unit is provided between the positive C-type adjustment block and the A connecting block, a reverse C-type adjustment block is provided on the lower sides of both ends below the A bamboo tube and the B bamboo tube, a connecting unit is provided between the reverse C-type adjustment block and the A bamboo tube and the B bamboo tube, the positive C-type adjustment block and the reverse C-type adjustment block can both slide on the outside of the connecting plate, and a quick positioning unit is provided between the positive C-type adjustment block and the reverse C-type adjustment block and the connecting plate.

[0008] Preferably, both inner and outer sides of the lower ends of the A bamboo tube, the B bamboo tube and the C bamboo tube are chamfered.

[0009] Preferably, guide grooves are provided on both the front and rear sides of the connecting plate, and A guide blocks are fixed on the inner sides of the positive C-shaped adjustment block and the reverse C-shaped adjustment block, and the A guide blocks can slide on the inner sides of the guide grooves.

[0010] Preferably, the connecting and fixing unit includes a B connecting block, the B connecting block is located on the lower side of the connecting plate, the B connecting block is fixedly connected to the inner side of the positive C-type adjustment block, the A connecting block is provided with A positioning blocks on the left and right sides, the A positioning block is fixedly connected to the lower side of the B connecting block, the A connecting block and the A positioning block are detachably connected at the front and rear ends by O-pins, the B connecting block is fixed with inclined plates on the left and right sides, the A positioning block is fixedly connected to the lower side of the inclined plate, two B positioning grooves are provided on the outer upper ends of the A bamboo tube, B bamboo tube and C bamboo tube, the B positioning grooves are located on the left and right sides of the mounting groove, an A positioning strip is fixed on the lower side of the inclined plate, and the A positioning strip can slide inside the B positioning groove.

[0011] Preferably, two B guide blocks are fixed on the upper side of the B connecting block, and the B guide blocks can slide inside the A sliding groove.

[0012] Preferably, the connecting unit includes a C connecting block, which is located on the upper side of the connecting plate and fixedly connected to the inner side of the inverted C-shaped adjustment block. B positioning blocks are fixed on both sides of the left and right sides of the C connecting block. A positioning grooves are provided on both inner and outer sides of the two ends below the A bamboo tube, the B bamboo tube and the C bamboo tube. A B guide strip is fixed on the upper side of the B positioning block, and the B guide strip can slide inside the A positioning groove.

[0013] Preferably, two C guide blocks are fixed on the lower side of the C connecting block, and the C guide blocks can slide inside the A sliding groove.

[0014] Preferably, the quick positioning unit includes two limit blocks and two strong springs, the upper front end of the positive C-type adjustment block and the lower front end of the reverse C-type adjustment block are both provided with through holes, the inner sides of the positive C-type adjustment block and the inner sides of the reverse C-type adjustment block are both provided with two limit holes, the limit holes are communicated with the through holes, the limit blocks can slide in the limit holes and the inner sides of the A sliding grooves, a moving block is fixed on the upper side of the limit blocks, the moving block can slide inside the through holes, the strong spring is located between the two moving blocks, two positioning pieces are provided at the front and rear ends of the outer side of the strong spring, the positioning pieces are fixedly connected to the moving blocks, an auxiliary block is fixed on the side of the moving block away from the strong spring, stop blocks are provided on the upper and lower sides of the auxiliary block, and the stop blocks are fixedly connected to the inner sides of the through holes.

[0015] The utility model proposes an energy-saving and environmentally friendly cooling tower core material bamboo tube water collector, which has the following beneficial effects:

[0016] 1. By setting the positive C-type adjustment block, the connection fixing unit, the reverse C-type adjustment block, the connection unit, and the quick positioning unit, the equipment can be quickly replaced and installed, which improves the efficiency of replacement, maintenance and installation. It can also be adjusted according to the actual size of the bamboo tube, so that the equipment can adapt to bamboo tubes of different specifications, thereby improving the adaptability of the equipment.

[0017] 2. By setting the connection fixing unit and the connection unit, the bamboo tube will not be punched to damage the internal structure of the bamboo tube during production, thereby improving the overall stability of the bamboo tube. At the same time, no extra gaps will appear in the bamboo tube during installation, thereby improving the use effect of the equipment.

[0018] 3. By setting up bamboo tube A, bamboo tube B and bamboo tube C, and using bamboo tubes as the material for internal parts of the equipment, its production is more convenient and energy-saving, and the material is environmentally friendly.

[0019] 4. By setting the inclined plate and the A positioning strip, when the connecting and fixing unit connects and positions the bamboo tube and the connecting plate, it plays a limiting role on the bamboo tube, making the bamboo tube more stable after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a top-down perspective structural diagram of a bamboo tube water collector made of a core material of an energy-saving and environmentally friendly cooling tower proposed by the utility model;

[0021] Figure 2 The utility model proposed Figure 1 A partial enlarged schematic diagram of the three-dimensional structure of the middle A area;

[0022] Figure 3The utility model proposed Figure 1 A schematic diagram of the partially enlarged three-dimensional structure of the middle B area;

[0023] Figure 4 This is a schematic diagram of the structure of the connecting and fixing unit proposed for the utility model;

[0024] Figure 5 A schematic diagram of the connection unit structure is proposed for the utility model;

[0025] Figure 6 The utility model provides a schematic diagram of the structure of a rapid positioning unit.

[0026] In the figure: 1. connecting plate; 2. connecting block A; 3. positive C-type adjusting block; 4. connecting and fixing unit; 41. connecting block B; 42. positioning block A; 43. tilting plate; 44. positioning strip A; 45. guide block B; 5. reverse C-type adjusting block; 6. connecting unit; 61. connecting block C; 62. positioning block B; 63. guide strip B; 64. guide block C; 7. quick positioning unit; 71. limit block; 72. strong spring; 73. moving block; 74. positioning piece; 75. auxiliary block; 76. stop block; 8. bamboo tube A; 9. bamboo tube B; 10. bamboo tube C; 11. guide block A. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the present invention will be clearly described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] Reference Figure 1-6 , an energy-saving and environmentally friendly cooling tower core material bamboo tube water collector, including three A bamboo tubes 8, four B bamboo tubes 9, and four C bamboo tubes 10, the A bamboo tubes 8, B bamboo tubes 9 and C bamboo tubes 10 are semicircular and open downward, and the inner and outer sides of the lower ends of the A bamboo tubes 8, B bamboo tubes 9 and C bamboo tubes 10 are chamfered, and the lower ends of the A bamboo tubes 8, B bamboo tubes 9 and C bamboo tubes 10 are chamfered to avoid scratching the hands of personnel at the lower ends of the A bamboo tubes 8, B bamboo tubes 9 and C bamboo tubes 10 during installation or disassembly, thereby improving the safety of the equipment, the A bamboo tube 8 is located on the lower side of the B bamboo tube 9, and the A bamboo tube 8 is located on the upper side of the C bamboo tube 10. By using bamboo tubes as the main material of the equipment, it is easy to produce and more environmentally friendly, and the manufacturing process is more energy-efficient. At the same time, the bamboo tubes are placed crosswise in three layers to improve the water collection effect of the equipment.

[0029] Three connecting plates 1 are arranged between the A bamboo tube 8 and the B bamboo tube 9, between the A bamboo tube 8 and the C bamboo tube 10, and on the upper side of the B bamboo tube 9. Two A sliding grooves are arranged on the upper and lower sides of the connecting plate 1. Guide grooves are arranged on the front and rear sides of the connecting plate 1. Mounting grooves are arranged on the upper ends of the outer sides of the A bamboo tube 8, the B bamboo tube 9, and the C bamboo tube 10. Three A connecting blocks 2 are installed on the inner sides of the mounting grooves by bolts. A positive C-shaped adjusting block 3 is arranged on the upper side of the A connecting block 2. A reverse C-shaped adjusting block 5 is arranged on the lower sides of both ends of the lower sides of the A bamboo tube 8 and the B bamboo tube 9. Both the positive C-type adjustment block 3 and the negative C-type adjustment block 5 can slide on the outside of the connecting plate 1, and A guide blocks 11 are fixed on the inside of the positive C-type adjustment block 3 and the negative C-type adjustment block 5. The A guide block 11 can slide on the inside of the guide groove. The A guide block 11 guides and restricts the sliding of the positive C-type adjustment block 3 and the negative C-type adjustment block 5 on the connecting plate 1, so that the movement of the positive C-type adjustment block 3 and the negative C-type adjustment block 5 is smoother and the positive C-type adjustment block 3 and the negative C-type adjustment block 5 are installed on the connecting plate 1.

[0030] A connecting and fixing unit 4 is provided between the positive C-type adjustment block 3 and the A connecting block 2. The connecting and fixing unit 4 includes a B connecting block 41. The B connecting block 41 is located at the lower side of the connecting plate 1. The B connecting block 41 is fixedly connected to the inner side of the positive C-type adjustment block 3. Two B guide blocks 45 are fixed on the upper side of the B connecting block 41. The B guide blocks 45 can slide inside the A sliding groove. The B guide blocks 45 guide the movement of the B connecting block 41, making the movement more stable. A positioning blocks 42 are provided on the left and right sides of the A connecting block 2. The A positioning blocks 42 are fixedly connected to the lower side of the B connecting block 41. The front and rear ends of the A connecting block 2 and the A positioning blocks 42 are detachably connected by O-shaped pins. The A positioning strip 44 and the inclined plate 43 are connected by O The B connecting block 41 is connected by a pin to facilitate subsequent disassembly. Inclined plates 43 are fixed on the left and right sides of the B connecting block 41. The A positioning block 42 is fixedly connected to the lower side of the inclined plate 43. Two B positioning grooves are provided on the upper ends of the outer sides of the A bamboo tube 8, the B bamboo tube 9 and the C bamboo tube 10. The B positioning grooves are located on the left and right sides of the mounting groove. An A positioning strip 44 is fixed on the lower side of the inclined plate 43. The A positioning strip 44 can slide on the inner side of the B positioning groove and is connected with the positive C-type adjustment block 3 through the B connecting block 41 to make the positive C-type adjustment block 3 more stable on the A connecting block 2. The A connecting block 2 and the A positioning block 42 are used to fix the bamboo tube on the lower side of the connecting plate 1, and the A positioning strip 44 limits the bamboo tube through the inclined plate 43 to prevent it from shaking.

[0031] A connecting unit 6 is provided between the reverse C-shaped adjusting block 5 and the A bamboo tube 8 and the B bamboo tube 9. The connecting unit 6 includes a C connecting block 61. The C connecting block 61 is located on the upper side of the connecting plate 1. The C connecting block 61 is fixedly connected to the inner side of the reverse C-shaped adjusting block 5. Two C guide blocks 64 are fixed to the lower side of the C connecting block 61. The C guide blocks 64 can slide inside the A sliding groove. The C guide blocks 64 guide the movement of the C connecting block 61, making the movement more stable. B fixed blocks are fixed on both sides of the C connecting block 61. A positioning grooves are provided on the inner and outer sides of the two ends below the A bamboo tube 8, the B bamboo tube 9 and the C bamboo tube 10, and a B guide bar 63 is fixed on the upper side of the B positioning block 62. The B guide bar 63 can slide inside the A positioning groove and is connected through the C connecting block 61 and the reverse C-type adjustment block 5 to make the reverse C-type adjustment block 5 more stable on the A connecting block 2. The B guide bar 63 is stuck in the A positioning groove to connect the B positioning block 62 and the C connecting block 61, so that the connecting plate 1 is hung on the lower side of the bamboo tube above it.

[0032] A quick positioning unit 7 is provided between the positive C-type adjustment block 3 and the reverse C-type adjustment block 5 and the connecting plate 1. The quick positioning unit 7 includes two limit blocks 71 and two strong springs 72. The upper end of the front side of the positive C-type adjustment block 3 and the lower end of the front side of the reverse C-type adjustment block 5 are both provided with through holes. The inner side of the positive C-type adjustment block 3 and the inner side of the reverse C-type adjustment block 5 are both provided with two limit holes. The limit holes are connected to the through holes. The limit block 71 can slide in the limit hole and the inner side of the A sliding groove. The upper side of the limit block 71 is fixed with a moving block 7 3. The moving block 73 can slide inside the through hole, and the strong spring 72 is located between the two moving blocks 73. Two positioning pieces 74 are provided at the front and rear ends of the outer side of the strong spring 72. The positioning pieces 74 are fixedly connected to the moving block 73. An auxiliary block 75 is fixed on the side of the moving block 73 away from the strong spring 72. Stop blocks 76 are provided on the upper and lower sides of the auxiliary block 75. The stop blocks 76 are fixedly connected to the inner side of the through hole. The stop blocks 76 can limit the moving block 73 and prevent the top of the strong spring 72 from The strong spring 72 pushes out the moving blocks 73 at both ends, so that the limit block 71 moves with the moving block 73 in the A sliding groove. When the limit block 71 contacts the inner wall of the A sliding groove, the contact surfaces of the two are friction layers, which are used to increase the friction between the two after contact. Under the action of the strong spring 72, it is difficult for the limit block 71 to move away from the inner wall of the A sliding groove. Then, under the action of the friction force, it is difficult for the limit block 71 to slide along the A sliding groove, so as to realize the positioning of the positive C-type adjustment block 3 and the reverse C-type adjustment block 5. At the same time, by pinching the two auxiliary blocks 75, the auxiliary block 75 can take the limit block 71 away from the inner wall of the A sliding groove through the moving block 73, so that the positive C-type adjustment block 3 and the reverse C-type adjustment block 5 can be moved and adjusted. The position, so that the device can adapt to bamboo tubes of different specifications, when the hand is released, the limit block 71 automatically contacts the inner wall of the A sliding groove under the force of the strong spring 72 to reset.

[0033] How it works:

[0034] According to the size of the bamboo tube, the positive C-type adjustment block 3 and the connecting and fixing unit 4 as well as the reverse C-type adjustment block 5 and the connecting unit 6 are installed on the connecting plate 1. The positive C-type adjustment block 3 and the reverse C-type adjustment block 5 are both positioned on the connecting plate 1 by the quick positioning unit 7, and the positions on the connecting plate 1 are adjusted therethrough. Then, the bamboo tube is connected to the connecting and fixing unit 4 and the connecting unit 6 as required, so that the bamboo tube and the connecting plate 1 are connected together so that the bamboo tube is positioned. When replacing or repairing, the connecting and fixing unit 4 and the bamboo tube can be loosened, and then the bamboo tube can be pulled out, and then adjusted by the quick positioning unit 7 so that the connecting and fixing unit 4 and the connecting unit 6 can be connected to the new bamboo tube.

[0035] In the description of this patent, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position; be constructed and operated in a specific position, and therefore cannot be understood as a limitation of the utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An energy-saving and environmentally friendly cooling tower core material bamboo tube water collector, comprising three A bamboo tubes (8), four B bamboo tubes (9), and four C bamboo tubes (10), wherein the A bamboo tubes (8), B bamboo tubes (9), and C bamboo tubes (10) are semicircular and open downward, characterized in that: The A bamboo tube (8) is located at the lower side of the B bamboo tube (9), and the A bamboo tube (8) is located at the upper side of the C bamboo tube (10). Three connecting plates (1) are provided between the A bamboo tube (8) and the B bamboo tube (9), between the A bamboo tube (8) and the C bamboo tube (10), and on the upper side of the B bamboo tube (9). Two A sliding grooves are provided on the upper and lower sides of the connecting plates (1). The upper ends of the outer sides of the A bamboo tube (8), the B bamboo tube (9), and the C bamboo tube (10) are provided with mounting grooves. Three A connecting blocks (2) are installed on the inner sides of the mounting grooves by bolts. The upper sides of the A connecting blocks (2) are provided with positive A C-type adjustment block (3), a connecting fixing unit (4) is provided between the positive C-type adjustment block (3) and the A connection block (2), a reverse C-type adjustment block (5) is provided at the lower sides of the two ends below the A bamboo tube (8) and the B bamboo tube (9), a connecting unit (6) is provided between the reverse C-type adjustment block (5) and the A bamboo tube (8) and the B bamboo tube (9), the positive C-type adjustment block (3) and the reverse C-type adjustment block (5) can both slide on the outside of the connection plate (1), and a quick positioning unit (7) is provided between the positive C-type adjustment block (3) and the reverse C-type adjustment block (5) and the connection plate (1).

2. The energy-saving and environmentally friendly cooling tower core material bamboo tube water collector according to claim 1 is characterized in that: Chamfers are provided on both inner and outer sides of the lower ends of the A bamboo tube (8), the B bamboo tube (9) and the C bamboo tube (10).

3. The energy-saving and environmentally friendly cooling tower core material bamboo tube water collector according to claim 1 is characterized in that: The connecting plate (1) is provided with guide grooves on both the front and rear sides, and the inner sides of the positive C-shaped adjustment block (3) and the reverse C-shaped adjustment block (5) are fixed with A guide blocks (11), and the A guide blocks (11) can slide inside the guide grooves.

4. The energy-saving and environmentally friendly cooling tower core material bamboo tube water collector according to claim 1 is characterized in that: The connecting and fixing unit (4) comprises a B connecting block (41), wherein the B connecting block (41) is located at the lower side of the connecting plate (1), and the B connecting block (41) is fixedly connected to the inner side of the positive C-shaped adjusting block (3); A positioning blocks (42) are provided on the left and right sides of the A connecting block (2), and the A positioning blocks (42) are fixedly connected to the lower side of the B connecting block (41); the front and rear ends of the A connecting block (2) and the A positioning block (42) are detachably connected via O-shaped pins; inclined plates (43) are fixedly provided on the left and right sides of the B connecting block (41), and the A positioning blocks (42) are fixedly connected to the lower side of the inclined plates (43); two B positioning grooves are provided on the upper ends of the outer sides of the A bamboo tube (8), the B bamboo tube (9) and the C bamboo tube (10), and the B positioning grooves are located on the left and right sides of the mounting groove; an A positioning strip (44) is fixedly provided on the lower side of the inclined plate (43), and the A positioning strip (44) can slide inside the B positioning groove.

5. The energy-saving and environmentally friendly cooling tower core material bamboo tube water collector according to claim 4 is characterized in that: Two B guide blocks (45) are fixed on the upper side of the B connecting block (41), and the B guide blocks (45) can slide inside the A sliding groove.

6. The energy-saving and environmentally friendly cooling tower core material bamboo tube water collector according to claim 1, characterized in that: The connecting unit (6) comprises a C connecting block (61), the C connecting block (61) is located on the upper side of the connecting plate (1), the C connecting block (61) is fixedly connected to the inner side of the reverse C-shaped adjusting block (5), the left and right sides of the C connecting block (61) are fixed with B positioning blocks (62), the inner and outer sides of the lower ends of the A bamboo tube (8), the B bamboo tube (9) and the C bamboo tube (10) are provided with A positioning grooves, and the upper side of the B positioning block (62) is fixed with a B guide bar (63), and the B guide bar (63) can slide inside the A positioning groove.

7. The energy-saving and environmentally friendly cooling tower core material bamboo tube water collector according to claim 6, characterized in that: Two C guide blocks (64) are fixed on the lower side of the C connection block (61), and the C guide blocks (64) can slide inside the A sliding groove.

8. The energy-saving and environmentally friendly cooling tower core material bamboo tube water collector according to claim 1, characterized in that: The quick positioning unit (7) comprises two limit blocks (71) and two strong springs (72). The upper front end of the positive C-type adjustment block (3) and the lower front end of the reverse C-type adjustment block (5) are both provided with through holes. The inner side of the positive C-type adjustment block (3) and the inner side of the reverse C-type adjustment block (5) are both provided with two limit holes. The limit holes are communicated with the through holes. The limit block (71) can slide in the limit holes and the inner side of the A sliding groove. A moving block (73) is fixed on the upper side of the limit block (71). The block (73) can slide inside the through hole, the strong spring (72) is located between the two moving blocks (73), two positioning pieces (74) are provided at the front and rear ends of the outer side of the strong spring (72), the positioning pieces (74) and the moving block (73) are fixedly connected, an auxiliary block (75) is fixed on the side of the moving block (73) away from the strong spring (72), and stop blocks (76) are provided on the upper and lower sides of the auxiliary block (75), and the stop blocks (76) are fixedly connected to the inner side of the through hole.

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