Active heat dissipation super-power spotlight

Abstract

The invention relates to the field of lighting facilities, in particular to an active heat dissipation super-power spot lamp which comprises a lamp body, a plurality of cooling fins are evenly distributed on the top of the lamp body in an extending mode, a lamp holder is arranged above the lamp body, and a lamp bracket is fixedly installed in the middle of the upper end of the lamp holder through bolts. A cooling fan is fixedly installed in the middle of the lower end of the lamp holder, a hanging bracket is slidably installed on the upper portion of the lamp bracket, a reinforcing piece is arranged between the lamp bracket and the hanging bracket, a connecting and fixing plate is fixedly installed on the upper end portion of the hanging bracket, groove seats are fixedly installed at the two ends of the connecting and fixing plate, and adjusting seats are slidably installed in the two groove seats. And a screw is screwed at the edge of the upper end of the adjusting seat in a penetrating manner. The mounting efficiency and the safety during mounting are improved, meanwhile, the mounting device can adapt to mounting of inclined reinforcing frames with different gradients, the applicability is ensured, and the firmness after mounting is also ensured.

Description

Technical Field

[0001] The invention relates to the field of lighting facilities, and in particular to an ultra-high-power spotlight with active heat dissipation. Background Art

[0002] Spotlight is a kind of lighting equipment, and its design principle is mainly to focus light into a strong beam through the combination of reflectors and lenses. Among them, super-high-power spotlights are often installed on the scaffolding of factories because of their high brightness and other characteristics, so that the space inside the room can be illuminated for easy operation.

[0003] However, when installing existing ultra-high-power spotlights, they are mostly fixed on the scaffolding by means of clamps. On the one hand, the clamping fixation requires frequent tightening of bolts, which takes a long time and leads to low installation efficiency. On the other hand, personnel need to use climbing equipment to move up to the scaffolding on the top of the factory building for installation, which means that high-altitude work is required, which poses a great safety hazard. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the background technology and to propose an ultra-high power spotlight with active heat dissipation.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: an ultra-high-power spotlight with active heat dissipation, comprising a lamp body, a plurality of heat sinks evenly distributed and extending on the top of the lamp body, a lamp holder is arranged above the lamp body, a lamp holder is fixedly installed with a lamp bracket through bolts in the middle of the upper end of the lamp holder, a heat dissipation fan is fixedly installed in the middle of the lower end of the lamp holder, a hanger is slidably installed on the upper part of the lamp bracket, a reinforcement piece is arranged between the lamp bracket and the hanger, a connecting plate is fixedly installed on the upper end of the hanger, a groove seat is fixedly installed at both ends of the connecting plate, and adjustment seats are slidably installed inside the two groove seats, a screw is passed through and tightened at the upper end edge of the adjustment seat, and the end of the screw is pressed against the inner bottom surface of the groove seat, and U-shaped hangers are arranged at the ends of the two adjustment seats, the U-shaped hangers are arranged obliquely, the two U-shaped hangers are symmetrical, and an adaptation piece is arranged between the U-shaped hanger and the adjustment seat.

[0006] Preferably, V-shaped frames are fixedly installed on both sides of the lamp body, the ends of the V-shaped frames are fixed to the sides of the lamp holder, the front and rear end faces of the adjustment seat are provided with sliding grooves, and the upper end of the groove seat is slidably installed inside the sliding groove.

[0007] Preferably, the reinforcement comprises a supporting column rotatably mounted on the lower end of the hanger, gears are coaxially inlaid on both ends of the supporting column, tooth plates are fixedly mounted on both sides of the lamp holder, the tooth plates are meshed with the gears, an anti-detachment seat is mounted on the outer surface of the supporting column, and the anti-detachment seat is arranged in an arc shape.

[0008] Preferably, two L-shaped frames are symmetrically fixedly installed on the lower end of the anti-slip seat, the ends of the L-shaped frames are fixed to the supporting columns, the two L-shaped frames are located between two gears, and a frame sleeve is fixedly installed on the lower front end of the hanger, the lamp holder passes through the inside of the frame sleeve, and the lamp holder slides in cooperation with the frame sleeve.

[0009] Preferably, an anti-drop cap extends from the upper end of the lamp holder, a top ear extends from the upper front end of the hanger, a stick sleeve is fixedly installed at the front end of the lamp holder, a locking sleeve is fixedly installed at the front end of the frame sleeve, a reinforcing rod is coaxially elastically installed inside the locking sleeve, both ends of the reinforcing rod pass through the front and rear ends of the locking sleeve, and the rear end of the reinforcing rod passes between the frame sleeve and the lamp holder.

[0010] Preferably, a rod ring is coaxially inlaid on the outer surface of the reinforcement rod, and the rod ring is slidably installed inside the locking sleeve. A push rod spring is wound around the outer side of the reinforcement rod, one end of the push rod spring is fixed to the front end of the rod ring, and the other end of the push rod spring is fixed to the inner front end of the locking sleeve. A pull ring is fixedly installed at the front end of the reinforcement rod, and reinforcement holes are penetrated through the front end surfaces of the frame sleeve and the lamp frame, and the reinforcement rod is inserted into the reinforcement hole.

[0011] Preferably, the adaptor includes a flip frame rotatably mounted on the end of the adjustment seat, a threaded rod is installed on the side of the upper end of the adjustment seat away from the screw, one end of the flip frame is fixed to the U-shaped hanger, and an H-shaped frame is rotatably mounted on the other end of the flip frame, and the end of the H-shaped frame is connected to the threaded rod.

[0012] Preferably, a handwheel is coaxially fixedly installed on the upper end of the threaded rod, a threaded sleeve is screwed on the outer side of the threaded rod, two frames are symmetrically fixedly installed on the outer surface of the threaded sleeve, the ends of the frames are fixed to the adjustment seat, and a connecting head is coaxially rotatably installed on the lower end of the threaded rod, and the end of the connecting head is rotatably connected to the end of the H-shaped frame.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The two U-shaped hangers are arranged symmetrically and can be engaged with the oblique reinforcement frame on the scaffolding, so that the lamp body can be hung on the scaffolding to complete the installation. The process saves the time spent on fixing the clamps, effectively improves the installation efficiency, and the lamp body can be propped up by a wooden stick during installation, so that the U-shaped hanger and the oblique reinforcement frame on the scaffolding are engaged. The process does not require high-altitude operations, which effectively improves the safety during installation.

[0014] 2. By loosening the screws, the adjustment seat can be driven to slide in the groove seat to adjust the left and right position of the U-shaped hanger. At the same time, the threaded rod can be rotated to allow the threaded rod to move up and down using the threads between the threaded rod and the threaded sleeve, thereby driving the H-shaped frame to move, so as to push the flip frame and enable the U-shaped hanger to flip. In this way, the inclination angle of the U-shaped hanger can be adjusted to adapt to the installation of oblique reinforcement frames with different inclinations to ensure its applicability.

[0015] 3. After installation, the lamp stand will slide down in the frame sleeve under the gravity of the lamp body. During this process, the reinforcement rod will slide on the surface of the lamp stand, and the toothed plate will move down synchronously with the lamp stand to drive the gear to rotate, thereby driving the anti-slip seat on the carrier column to flip up to support the lower part of the scaffolding. At this time, the reinforcement rod will just slide to the reinforcement hole on the lamp stand and be inserted into the reinforcement hole under the action of the push rod spring, so that the anti-slip seat can be firmly supported on the lower part of the scaffolding to ensure that the U-shaped hanger will not move up and detach from the inclined reinforcement frame, thereby ensuring the firmness after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an ultra-high-power spotlight with active heat dissipation according to the present invention; Figure 2 This is a schematic diagram of a slot seat of an ultra-high-power spotlight with active heat dissipation according to the present invention; Figure 3 This is a schematic diagram of a U-shaped suspension base of an ultra-high power spotlight with active heat dissipation according to the present invention; Figure 4 It is a schematic diagram of a lamp body of an ultra-high-power spotlight with active heat dissipation according to the present invention; Figure 5 This is a schematic diagram of an L-shaped frame of an ultra-high power spotlight with active heat dissipation according to the present invention; Figure 6 This is an internal view of a lock sleeve of an ultra-high-power spotlight with active heat dissipation according to the present invention; Figure 7 This is an installation view of an ultra-high-power spotlight with active heat dissipation according to the present invention; Figure 8 The present invention is an ultra-high power spotlight with active heat dissipation Figure 7 A is an enlarged view of the middle image.

[0017] In the figure: 1. lamp body; 2. lamp holder; 3. lamp frame; 4. stick sleeve; 5. hanger; 6. top ear; 7. L-shaped frame; 8. connecting plate; 9. groove seat; 10. locking sleeve; 11. reinforcement rod; 12. push rod spring; 13. rod ring; 14. pull ring; 15. reinforcement hole; 16. anti-drop cap; 17. frame sleeve; 18. U-shaped hanger; 19. adjustment seat; 20. H-shaped frame; 21. screw; 22. frame; 23. threaded sleeve; 24. threaded rod; 25. connector; 26. hand wheel; 27. heat sink; 28. cooling fan; 29. ​​V-shaped frame; 30. support column; 31. tooth plate; 32. gear; 33. anti-drop seat; 34. flip frame; 35. slide groove; 36. scaffolding; 37. oblique reinforcement frame. DETAILED DESCRIPTION

[0018] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0019] like Figure 1-Figure 8 An ultra-high-power spotlight with active heat dissipation shown in the figure comprises a lamp body 1, a plurality of heat sinks 27 are evenly distributed and extended on the top of the lamp body 1, the heat sink 27 can increase the contact surface between the lampshade and the air, thereby improving the heat dissipation of the lamp body 1, a lamp holder 2 is arranged above the lamp body 1, a lamp holder 3 is fixedly installed on the middle part of the upper end of the lamp holder 2 by bolts, and the two can be separated by loosening the bolts between the lamp holder 2 and the lamp holder 3, so that when the ultra-high-power spotlight is damaged, only the ultra-high-power spotlight needs to be replaced separately, a heat dissipation fan 28 is fixedly installed on the middle part of the lower end of the lamp holder 2, and the heat dissipation fan 28 can increase the air flow around the heat sink 27 to actively dissipate the heat of the lamp body 1, a hanger 5 is slidably installed on the upper part of the lamp holder 3, a reinforcement is arranged between the lamp holder 3 and the hanger 5, and the upper end of the hanger 5 is fixed A connecting plate 8 is installed, and the hanger 5 plays a role of suspension. Groove seats 9 are fixedly installed at both ends of the connecting plate 8, and the connecting plate 8 plays a role of fixing the groove seats 9. Adjustment seats 19 are slidably installed inside the two groove seats 9. The cooperation between the groove seats 9 and the adjustment seats 19 can adjust the left and right positions of the U-shaped hanger 18. A screw 21 is tightened through the upper edge of the adjusting seat 19, and the end of the screw 21 is pressed against the inner bottom surface of the groove seat 9. The screw 21 plays a role of fixing the adjusting seat 19. U-shaped hangers 18 are provided at the ends of the two adjusting seats 19. The U-shaped hangers 18 are inclined, and the two U-shaped hangers 18 are symmetrical, which can adapt to the distribution of the oblique reinforcement frame 37 on the scaffolding 36 for engagement, and an adaptation part is provided between the U-shaped hanger 18 and the adjustment seat 19.

[0020] V-shaped frames 29 are fixedly installed on both sides of the lamp body 1, and the ends of the V-shaped frames 29 are fixed to the sides of the lamp holder 2. The V-shaped frames 29 serve to fix the lamp body 1 and the lamp holder 2 together. The front and rear end surfaces of the adjustment seat 19 are provided with sliding grooves 35. The upper end of the groove seat 9 is slidably installed inside the sliding grooves 35. The sliding grooves 35 serve to prevent the adjustment seat 19 and the groove seat 9 from separating up and down.

[0021] The reinforcement part includes a supporting column 30 rotatably mounted on the lower end of the hanger 5, and gears 32 are coaxially inlaid at both ends of the supporting column 30. The supporting column 30 plays the role of supporting the gear 32 and the anti-detachment seat 33. Tooth plates 31 are fixedly mounted on both sides of the lamp holder 3, and the tooth plates 31 are meshed with the gears 32. The tooth plates 31 and the gears 32 can make the anti-detachment seat 33 press against the lower part of the scaffold 36 to prevent the U-shaped hanger 18 and the oblique reinforcement frame 37 from separating. The outer surface of the supporting column 30 is provided with an anti-detachment seat 33, which is arranged in an arc shape and can adapt to the arc surface of the scaffold 36 so that the two are fully in contact, allowing the lamp body 1 to move downward under gravity, thereby driving the lamp holder 3 to slide downward in the frame sleeve 17. In this process, the reinforcement rod 11 slides on the surface of the lamp holder 3, and the tooth plate 31 moves downward synchronously with the lamp holder 3 to drive the gear 32 to rotate, thereby driving the anti-detachment seat 33 on the supporting column 30 to flip up to press against the lower part of the scaffold 36.

[0022] Two L-shaped frames 7 are symmetrically fixedly installed on the lower end of the anti-slip seat 33, and the ends of the L-shaped frames 7 are fixed to the supporting column 30. The L-shaped frames 7 play a role in fixing the anti-slip seat 33. The two L-shaped frames 7 are located between the two gears 32. A frame sleeve 17 is fixedly installed on the lower front end of the hanger 5. The lamp holder 3 passes through the inside of the frame sleeve 17. The frame sleeve 17 plays a role in guiding the lamp holder 3. The lamp holder 3 and the frame sleeve 17 are slidably matched.

[0023] The upper end of the lamp holder 3 is provided with an anti-drop cap 16, and the upper front end of the hanger 5 is provided with a top ear 6. The anti-drop cap 16 prevents the lamp holder 3 from separating from the frame sleeve 17. The front end of the lamp holder 3 is fixedly provided with a stick sleeve 4, and a wooden stick is inserted into the stick sleeve 4 to prop up the lamp body 1. At this time, the lamp holder 3 is supported on the top ear 6, so that the U-shaped hanger 18 on the hanger 5 is supported synchronously. The front end of the frame sleeve 17 is fixedly provided with a locking sleeve 10, and a reinforcing rod 11 is coaxially elastically installed inside the locking sleeve 10. The locking sleeve 10 serves to carry the reinforcing rod 11. Both ends of the reinforcing rod 11 extend out from the front and rear ends of the locking sleeve 10, and the rear end of the reinforcing rod 11 passes through between the frame sleeve 17 and the lamp holder 3. After installation, the reinforcing rod 11 will be inserted between the frame sleeve 17 and the lamp holder 3 to fix the anti-drop seat 33 on the lower part of the scaffolding 36, thereby preventing the U-shaped hanger 18 and the oblique reinforcement frame 37 from separating.

[0024] A rod ring 13 is coaxially inlaid on the outer surface of the reinforcement rod 11, and the rod ring 13 is slidably installed inside the locking sleeve 10. The rod ring 13 is pushed by the push rod spring 12. A push rod spring 12 is wrapped around the outer side of the reinforcement rod 11. One end of the push rod spring 12 is fixed to the front end of the rod ring 13. The push rod spring 12 plays a role in pushing the reinforcement rod 11 out. The other end of the push rod spring 12 is fixed to the inner front end of the locking sleeve 10. A pull ring 14 is fixedly installed at the front end of the reinforcement rod 11. The pull ring 14 facilitates pulling the reinforcement rod 11. The front end surfaces of the frame sleeve 17 and the front end surfaces of the lamp holder 3 are both penetrated by reinforcement holes 15. The reinforcement rod 11 is inserted into the reinforcement hole 15, and the reinforcement hole 15 cooperates with the reinforcement rod 11.

[0025] The adaptor includes a flip frame 34 rotatably mounted on the end of the adjusting seat 19, and a threaded rod 24 is installed on the side of the upper end of the adjusting seat 19 away from the screw 21. The flip frame 34 can drive the U-shaped hanger 18 to flip so as to adjust the angle of the U-shaped hanger 18. One end of the flip frame 34 is fixed to the U-shaped hanger 18, and the other end of the flip frame 34 is rotatably mounted with an H-shaped frame 20. The threaded rod 24 can drive the H-shaped frame 20 to move to push the flip frame 34. The end of the H-shaped frame 20 is connected to the threaded rod 24. The U-shaped design of the U-shaped hanger 18 can make it firmly engaged with the oblique reinforcement frame 37, and the threaded rod 24 is rotated so that the threaded rod 24 can move up and down using the thread between the threaded sleeve 23, thereby driving the H-shaped frame 20 to move, so as to push the flip frame 34 so that the U-shaped hanger 18 can be flipped, thereby adjusting the inclination angle of the U-shaped hanger 18.

[0026] A handwheel 26 is coaxially fixedly installed on the upper end of the threaded rod 24, and a threaded sleeve 23 is screwed on the outer side of the threaded rod 24. The handwheel 26 serves to facilitate the rotation of the threaded rod 24. Two frames 22 are symmetrically fixedly installed on the outer surface of the threaded sleeve 23. The threaded sleeve 23 cooperates with the threaded rod 24. The end of the frame 22 is fixed to the adjustment seat 19, and the frame 22 serves to fix the threaded sleeve 23. A connector 25 is coaxially rotatably installed on the lower end of the threaded rod 24. The end of the connector 25 is rotatably connected to the end of the H-shaped frame 20. The connector 25 can ensure that the rotation of the threaded rod 24 will not be hindered.

[0027] When in use, first turn the screw 21 to make the adjustment seat 19 slide in the groove seat 9 to adjust the left and right position of the U-shaped hanger 18, and at the same time rotate the threaded rod 24 to allow the threaded rod 24 to move up and down using the threads between the threaded sleeve 23, thereby driving the H-shaped frame 20 to move, so as to push the flip frame 34 so that the U-shaped hanger 18 can be flipped, thereby adjusting the inclination angle of the U-shaped hanger 18 to adapt to the inclination of the oblique reinforcement frame 37 on the scaffolding 36, and then use a wooden stick to insert into the stick sleeve 4 to prop up the lamp body 1. At this time, the lamp frame 3 is pushed on the top ear 6, so that the U-shaped hanger 18 on the hanger 5 is propped up synchronously, so that the two U-shaped hangers 18 can be propped up to the oblique reinforcement frame 37 and stuck on the oblique reinforcement frame 37, so that the lamp body 1 is hung on the scaffolding 36, and the supporting wooden stick is loosened at this time. 1 moves downward under gravity, thereby driving the lamp holder 3 to slide downward in the holder sleeve 17. During this process, the reinforcing rod 11 slides on the surface of the lamp holder 3, and the toothed plate 31 moves downward synchronously with the lamp holder 3 to drive the gear 32 to rotate, thereby driving the anti-slip seat 33 on the carrier column 30 to flip up to press against the lower part of the shelf 36. At this time, the reinforcing rod 11 just slides to the reinforcing hole 15 on the lamp holder 3, and is inserted into the reinforcing hole 15 under the action of the push rod spring 12, so that the anti-slip seat 33 is firmly pressed against the lower part of the shelf 36 to ensure that the U-shaped hanging seat 18 will not move up and separate from the oblique reinforcing frame 37, so as to firmly fix the lamp body 1, and then lighting can be carried out. During the lighting process, the heat dissipation fan 28 will generate wind force to accelerate the air flow at the heat sink 27 to actively dissipate heat to the lamp body 1 to avoid overheating of the lamp body 1.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. An ultra-high power spotlight with active heat dissipation, comprising a lamp body (1), characterized in that: A plurality of heat sinks (27) are evenly distributed and extend from the top of the lamp body (1); a lamp holder (2) is arranged above the lamp body (1); a lamp bracket (3) is fixedly mounted on the middle of the upper end of the lamp holder (2) by means of bolts; a heat dissipation fan (28) is fixedly mounted on the middle of the lower end of the lamp holder (2); a hanger (5) is slidably mounted on the upper part of the lamp bracket (3); a reinforcement member is arranged between the lamp bracket (3) and the hanger (5); a connecting plate (8) is fixedly mounted on the upper end of the hanger (5); both ends of the connecting plate (8) are A slot seat (9) is fixedly installed on each of the two slot seats (9), and an adjustment seat (19) is slidably installed inside each of the two slot seats (9). A screw (21) is screwed through the upper edge of the adjustment seat (19), and the end of the screw (21) is pressed against the inner bottom surface of the slot seat (9). A U-shaped hanging seat (18) is arranged at the end of each of the two adjustment seats (19), and the U-shaped hanging seat (18) is arranged in an inclined manner. The two U-shaped hanging seats (18) are symmetrical, and an adaptor is arranged between the U-shaped hanging seat (18) and the adjustment seat (19).

2. The active heat dissipation ultra-high power spotlight according to claim 1, characterized in that: V-shaped frames (29) are fixedly mounted on both sides of the lamp body (1), the ends of the V-shaped frames (29) are fixed to the side surfaces of the lamp holder (2), the front and rear end surfaces of the adjustment holder (19) are provided with sliding grooves (35), and the upper end of the groove holder (9) is slidably mounted inside the sliding grooves (35).

3. The active heat dissipation ultra-high power spotlight according to claim 1, characterized in that: The reinforcement member comprises a support column (30) rotatably mounted on the lower end of the hanger (5), gears (32) being coaxially inlaid on both ends of the support column (30), toothed plates (31) being fixedly mounted on both sides of the lamp holder (3), the toothed plates (31) being meshed with the gears (32), and an anti-slip seat (33) being mounted on the outer surface of the support column (30), the anti-slip seat (33) being arranged in an arc shape.

4. The active heat dissipation ultra-high power spotlight according to claim 3, characterized in that: Two L-shaped frames (7) are symmetrically fixedly mounted on the lower end of the anti-slip seat (33), the ends of the L-shaped frames (7) are fixed to the supporting column (30), the two L-shaped frames (7) are located between the two gears (32), a frame sleeve (17) is fixedly mounted on the lower front end of the hanger (5), the lamp holder (3) passes through the inside of the frame sleeve (17), and the lamp holder (3) and the frame sleeve (17) are slidably matched.

5. The active heat dissipation ultra-high power spotlight according to claim 4, characterized in that: An anti-drop cap (16) extends from the upper end of the lamp holder (3), a top ear (6) extends from the upper front end of the hanger (5), a stick sleeve (4) is fixedly mounted on the front end of the lamp holder (3), a locking sleeve (10) is fixedly mounted on the front end of the frame sleeve (17), a reinforcing rod (11) is coaxially and elastically mounted inside the locking sleeve (10), two ends of the reinforcing rod (11) extend from the front and rear ends of the locking sleeve (10), and the rear end of the reinforcing rod (11) passes through between the frame sleeve (17) and the lamp holder (3).

6. The active heat dissipation ultra-high power spotlight according to claim 5, characterized in that: The outer surface of the reinforcement rod (11) is coaxially inlaid with a rod ring (13), and the rod ring (13) is slidably installed inside the locking sleeve (10). A push rod spring (12) is wound around the outer side of the reinforcement rod (11), one end of the push rod spring (12) is fixed to the front end of the rod ring (13), and the other end of the push rod spring (12) is fixed to the front end of the locking sleeve (10). A pull ring (14) is fixedly installed at the front end of the reinforcement rod (11), and the front end surfaces of the frame sleeve (17) and the lamp frame (3) are both penetrated by reinforcement holes (15), and the reinforcement rod (11) is inserted into the reinforcement hole (15).

7. The active heat dissipation ultra-high power spotlight according to claim 1, characterized in that: The adaptor comprises a turning frame (34) rotatably mounted on the end of the adjusting seat (19); a threaded rod (24) is mounted on the side of the upper end of the adjusting seat (19) away from the screw (21); one end of the turning frame (34) is fixed to the U-shaped hanging seat (18); an H-shaped frame (20) is rotatably mounted on the other end of the turning frame (34); and the end of the H-shaped frame (20) is connected to the threaded rod (24).

8. The active heat dissipation ultra-high power spotlight according to claim 7, characterized in that: A hand wheel (26) is coaxially fixedly mounted on the upper end of the threaded rod (24); a threaded sleeve (23) is screwed onto the outer side of the threaded rod (24); two frames (22) are symmetrically fixedly mounted on the outer surface of the threaded sleeve (23); the ends of the frames (22) are fixed to the adjustment seat (19); a connector (25) is coaxially rotatably mounted on the lower end of the threaded rod (24); and the end of the connector (25) is rotatably connected to the end of the H-shaped frame (20).

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