A prefabricated beam component height automatic adjustment auxiliary device
By designing a prefabricated beam member automatic height adjustment auxiliary device including a support mechanism, an X-direction slide platform, a Y-direction slide platform, a lifting mechanism and a clamping mechanism, the problem of inaccurate position and height adjustment of prefabricated beams in the prior art is solved, and high-precision installation of prefabricated beams is achieved.
Patent Information
- Application Number
- CN202520323840.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2035-02-27
AI Technical Summary
The existing auxiliary devices are difficult to accurately adjust the coordinate position of the prefabricated beam members in the two-dimensional plane, and it is difficult to finely adjust the prefabricated beams, resulting in the prefabricated beams being unable to accurately reach the installation point.
A prefabricated beam member height automatic adjustment auxiliary device is designed, including a support mechanism, an X-direction sliding table, a Y-direction sliding table, a lifting mechanism and a clamping mechanism. Through the collaborative work of these components, precise position adjustment and height adjustment of prefabricated beams in a two-dimensional plane are achieved.
High-precision position adjustment and height adjustment of prefabricated beams in a two-dimensional plane are realized, ensuring that prefabricated beams can accurately reach the installation point and improving installation flexibility and accuracy.
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Figure CN222731140U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of auxiliary installation of prefabricated beam components, in particular to an auxiliary device for automatically adjusting the height of a prefabricated beam component. Background Art
[0002] Precast beam components are structural components that are prefabricated in a factory or construction site and then transported to the bridge construction site for installation. They are usually made of materials such as concrete and steel, and have specific shapes and sizes to meet the design requirements of the bridge. There are various types of precast beam components, the most common of which are box beams, T beams, I beams, etc. Different types of precast beam components are suitable for different bridge structures and engineering requirements.
[0003] The installation of prefabricated beam components is a relatively complicated process, which requires the inspection of prefabricated beam components to confirm that their quality and size meet the requirements. Then comes the lifting process, which involves steadily lifting the prefabricated beam components, transporting them to the installation location, and slowly placing them on the predetermined support structure. Auxiliary devices are used for precise positioning and adjustment to ensure that the position and elevation of the prefabricated beam components are accurate. Finally, the prefabricated beam components are connected to adjacent structural components to form an integral structure.
[0004] In the process of realizing the present invention, the inventors found that the prior art had the following problems: 1. It is often difficult for the existing auxiliary devices to accurately adjust the coordinate position of the precast beam components in the two-dimensional plane, making it difficult to calibrate the precast beam components to a specific installation position; 2. After the existing precast beam components are hoisted, they can only be placed in an approximate position, and the height of the precast beam cannot be finely adjusted, making it difficult for the precast beam to accurately reach the installation point. Utility Model Content
[0005] The purpose of the utility model is to provide an auxiliary device for automatically adjusting the height of a prefabricated beam component, so as to solve the problem that the existing auxiliary devices proposed in the above background technology are often difficult to accurately adjust the coordinate position of the prefabricated beam component in a two-dimensional plane, so that it is difficult to calibrate the prefabricated beam component to a specific installation position, and the existing prefabricated beam component can only be placed in an approximate position after being hoisted, and the height of the prefabricated beam cannot be finely adjusted, and it is difficult to make the prefabricated beam accurately reach the installation point. To achieve the above purpose, the utility model provides the following technical solutions: an auxiliary device for automatically adjusting the height of a prefabricated beam component, comprising a support mechanism, the top end of the support mechanism is screwed to the four corners of the bottom of the base, an X-axis slide is provided in the middle of the bottom wall of the base, a Y-axis slide is provided on the top of the X-axis slide, a lifting mechanism is screwed on the top of the Y-axis slide, a clamping mechanism is horizontally penetrated on the opposite side of the lifting mechanism, and universal wheels are welded at the bottom of the base near the four corners of the support mechanism.
[0006] Further preferably, the supporting mechanism includes a hydraulic cylinder A, a butt plate and an anti-slip layer, the top end of the hydraulic cylinder A is screwed to the four bottom corners of the base, the driving end of the hydraulic cylinder A is provided with a butt plate, and the bottom of the butt plate is provided with an anti-slip layer.
[0007] Further preferably, the X-axis slide table includes a first slide rail, a first screw, a first motor and a first screw seat, the bottom of the first slide rail is arranged in the middle of the bottom wall of the base, the two ends of the first screw are rotatably connected to the left and right inner walls of the first slide rail, the first motor is inserted into one end of the first screw, and the first screw seat is screwed to the outer wall of the first screw.
[0008] Further preferably, the Y-axis slide includes a second slide rail, a second screw, a second motor, a second screw seat and a support plate, the bottom of the second slide rail is arranged at the top of the first screw seat, the two ends of the second screw are rotatably connected to the left and right inner walls of the second slide rail, the second motor is inserted into one end of the second screw, the second screw seat is screwed to the outer wall of the second screw, and a support plate is provided on the top of the second screw seat.
[0009] Further preferably, the lifting mechanism includes a hydraulic cylinder B, a placement groove, an anti-slip rubber pad and a slide plate, the bottoms of the two hydraulic cylinders B are respectively screwed to the left and right sides of the top of the support plate, the driving ends of the two hydraulic cylinders B are provided with a placement groove, the bottom wall of the placement groove is provided with an anti-slip rubber pad, and the front and rear outer walls of the placement groove are provided with slide plates.
[0010] Further preferably, a plurality of slides are provided on both the front and rear sides of the top of the base, and the slides and the slide bars form a sliding connection.
[0011] Further preferably, the clamping mechanism includes a plurality of electric telescopic rods, clamping plates and clamping pads, the driving ends of the plurality of electric telescopic rods transversely penetrate opposite sides of the placement slot, the driving ends of the electric telescopic rods are provided with clamping plates, and the opposite sides of the clamping plates are provided with clamping pads.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] In the utility model, the setting of the X-axis slide can realize the precise position adjustment of the precast beam in the X-axis direction, and meet the high-precision requirements for the position of the precast beam in different construction scenarios. The Y-axis slide is operated independently of the X-axis slide, which is convenient for the operator to adjust the position of the precast beam in the Y-axis direction according to actual conditions. The Y-axis slide cooperates with the X-axis slide to realize the position adjustment of the precast beam in a two-dimensional plane, calibrate the entire lifting mechanism and the precast beam to a specific installation position, increase the flexibility and accuracy of the adjustment, and can better meet the needs of complex construction environments.
[0014] In the utility model, the setting of the lifting mechanism can realize the height adjustment of the prefabricated beam in the vertical direction, meet the requirements of different construction heights, enable the prefabricated beam to accurately reach the installation point, and work in coordination with the X-axis slide and the Y-axis slide to jointly complete the precise adjustment and installation of the prefabricated beam. The setting of the clamping mechanism can firmly clamp the prefabricated beam inside the placement groove, thereby preventing it from shaking or displacing during transportation and installation, and the clamping mechanism can adapt to prefabricated beams of different sizes, and achieve precise clamping by adjusting the extended length. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the support mechanism structure of the utility model;
[0017] Figure 3 This is a schematic diagram of the X-axis slide structure of the utility model;
[0018] Figure 4 This is a schematic diagram of the structure of the clamping mechanism of the utility model.
[0019] In the figure: 1. Support mechanism; 101. Hydraulic cylinder A; 102. Butt plate; 103. Anti-skid layer; 2. Base; 201. Slide rod; 3. X-axis slide; 301. First slide rail; 302. First screw rod; 303. First motor; 304. First screw seat; 4. Y-axis slide; 401. Second slide rail; 402. Second screw rod; 403. Second motor; 404. Second screw seat; 405. Support plate; 5. Lifting mechanism; 501. Hydraulic cylinder B; 502. Placement slot; 503. Anti-skid rubber pad; 504. Slide plate; 6. Clamping mechanism; 601. Electric telescopic rod; 602. Clamping plate; 603. Clamping pad; 7. Universal wheel. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.
[0021] See also Figures 1 to 4The utility model provides a technical solution: an auxiliary device for automatically adjusting the height of a prefabricated beam component, comprising a supporting mechanism 1, the top of the supporting mechanism 1 is screwed to the four corners of the bottom of a base 2, an X-axis slide 3 is provided in the middle of the bottom wall of the base 2, a Y-axis slide 4 is provided on the top of the X-axis slide 3, a lifting mechanism 5 is screwed on the top of the Y-axis slide 4, a clamping mechanism 6 is laterally penetrated on the opposite side of the lifting mechanism 5, and universal wheels 7 are welded at the bottom of the base 2 near the four corners of the supporting mechanism 1.
[0022] In this embodiment, Figure 1 and Figure 2 As shown, the support mechanism 1 includes a hydraulic cylinder A101, a support plate 102 and an anti-slip layer 103. The top end of the hydraulic cylinder A101 is screwed to the four corners of the bottom of the base 2. The driving end of the hydraulic cylinder A101 is provided with a support plate 102, and the bottom of the support plate 102 is provided with an anti-slip layer 103. It should be noted that the operator can first move the entire auxiliary device to the installation site through the universal wheel 7, and then start the hydraulic cylinders A101 in four directions at the same time, so that the driving end begins to extend downward and pushes the support plate 102 connected thereto to descend together until it is arranged at the bottom of the support plate 102. The anti-skid layer 103 on the top can fit tightly to the ground, thus completing the stable support of the entire auxiliary device. In actual use, through the simultaneous operation of the hydraulic cylinders A101 in four directions, the abutment plate 102 can be evenly stressed and fit tightly to the ground. The anti-skid layer 103 can provide stable support for the entire device, ensuring that the prefabricated beam will not shake or shift during the height adjustment process, thereby ensuring the safety and accuracy of the construction. The anti-skid layer 103 can increase the friction with the ground and provide good grip, thereby ensuring the stability of the support and improving the adaptability of the device.
[0023] In this embodiment, Figure 3As shown, the X-axis slide 3 includes a first slide rail 301, a first screw rod 302, a first motor 303 and a first screw seat 304. The bottom of the first slide rail 301 is arranged in the middle of the bottom wall of the base 2. The two ends of the first screw rod 302 are rotatably connected to the left and right inner walls of the first slide rail 301. The first motor 303 is plugged into one end of the first screw rod 302. The first screw seat 304 is screwed to the outer wall of the first screw rod 302. It should be noted that when the precast beam is hoisted to the top of the lifting mechanism 5 by a hoisting vehicle and clamped and fixed, the operator can start the first motor 303 to drive the first screw rod 302 plugged therein to start rotating, so that the first screw seat 304 screwed to the outer wall of the first screw rod 302 can move laterally along the thread direction. The Y-axis slide 4 and the lifting mechanism 5 arranged on the top of the first screw seat 304 will also be driven to move horizontally together, so that the precast beam clamped and fixed on the top of the lifting mechanism 5 can adjust the position in the X-axis direction. In actual use, the setting of the X-axis slide 3 can realize the precise position adjustment of the precast beam in the X-axis direction, meeting the high-precision requirements for the position of the precast beam in different construction scenarios, and the first motor 303 drives the first screw rod 302 to rotate, driving the first screw seat 304 to move horizontally, thereby realizing the movement of the precast beam and related components. The adjustment process is flexible and convenient, and can be fine-tuned at any time according to actual needs. At the same time, the design of the first slide rail 301 and the first screw rod 302 ensures the stability of the moving process, reduces shaking and offset, and ensures the stability of the precast beam when adjusting its position.
[0024] In this embodiment, Figure 3As shown, the Y-axis slide 4 includes a second slide rail 401, a second screw rod 402, a second motor 403, a second screw seat 404 and a support plate 405, the bottom of the second slide rail 401 is arranged at the top of the first screw seat 304, the two ends of the second screw rod 402 are rotatably connected to the left and right inner walls of the second slide rail 401, the second motor 403 is plugged into one end of the second screw rod 402, the second screw seat 404 is screwed to the outer wall of the second screw rod 402, and the top of the second screw seat 404 is provided with a support plate 405; it should be noted that when the operator drives the lifting mechanism 5 and the prefabricated beam clamped on the top of the lifting mechanism 5 through the X-axis slide 3 to complete the position adjustment in the X-axis direction, the operator can start the second motor 403 to drive the second screw rod 402 plugged therein to start rotating, so that the second screw rod 402 screwed to the outer wall of the second screw rod 402 The seat 404 can move along the thread direction. At the same time, the lifting mechanism 5 arranged on the top of the second screw seat 404 and the precast beam clamped on the top of the lifting mechanism 5 will be moved together, so as to realize the position adjustment of the precast beam in the Y-axis direction. In actual use, the Y-axis slide 4 is operated independently of the X-axis slide 3, which is convenient for the operator to adjust the position of the precast beam in the Y-axis direction according to actual conditions, thereby improving the convenience of operation. The design of components such as the second slide rail 401 and the second screw rod 402 ensures the stability of its own structure, and can effectively reduce vibration and deviation in the process of driving the precast beam to move, thereby ensuring the accuracy and reliability of the adjustment. The Y-axis slide 4 cooperates with the X-axis slide 3 to realize the position adjustment of the precast beam in a two-dimensional plane, thereby increasing the flexibility and accuracy of the adjustment, and being able to better meet the needs of complex construction environments.
[0025] In this embodiment, Figure 3 and Figure 4As shown, the lifting mechanism 5 includes a hydraulic cylinder B501, a placement groove 502, an anti-skid rubber pad 503 and a slide plate 504, the bottoms of the two hydraulic cylinders B501 are respectively screwed to the left and right sides of the top of the support plate 405, the driving ends of the two hydraulic cylinders B501 are provided with a placement groove 502, the bottom wall of the placement groove 502 is provided with an anti-skid rubber pad 503, and the outer walls of the front and rear sides of the placement groove 502 are provided with slide plates 504; it should be noted that the operator can first place the prefabricated beam inside the placement groove 502 so that it is close to the surface of the anti-skid rubber pad 503, and clamp it and fix it through the clamping mechanism 6, and then adjust the lifting mechanism 5 and the specific positions of the prefabricated beam in the X-axis direction and the Y-axis direction through the X-axis slide 3 and the Y-axis slide 4 in turn, at this time, the prefabricated beam will be calibrated to the specific installation position, and at the same time, the operator can start the two hydraulic cylinders B501 to make the driving end start to move upward The lifting mechanism 5 stretches and pushes the placement slot 502 connected thereto to rise, during which the precast beam clamped and fixed inside the placement slot 502 will be pushed up to the installation point for the convenience of corresponding construction. In actual use, the setting of the lifting mechanism 5 can realize the height adjustment of the precast beam in the vertical direction to meet the requirements of different construction heights, so that the precast beam can accurately reach the installation point. The design of the hydraulic cylinder B501 gives it a strong bearing capacity, which can stably support the precast beam and perform lifting operations to ensure the safety of the construction process. The anti-slip rubber pad 503 can increase the friction between the precast beam and the placement slot 502 to prevent the precast beam from sliding during the placement and lifting process, thereby ensuring the stability and accuracy of the precast beam. At the same time, the lifting mechanism 5 works in coordination with the X-axis slide 3 and the Y-axis slide 4 to jointly complete the precise adjustment and installation of the precast beam, thereby improving the working efficiency and reliability of the entire auxiliary device.
[0026] In this embodiment, Figure 1 and Figure 2As shown, a plurality of slide bars 201 are provided on both the front and rear sides of the top of the base 2, and the slide plate 504 and the slide bar 201 form a sliding connection; it should be noted that when the operator pushes the precast beam placed in the placement groove 502 to the precise installation point through the lifting mechanism 5, the slide plates 504 arranged on the outer walls of the front and rear sides of the placement groove 502 will be synchronously raised, during which the slide plates 504 will slide vertically in contact with the outer walls of the slide bar 201 until the entire placement groove 502 and the precast beam are raised to the corresponding installation point, so as to facilitate precise installation. Accurate construction: in actual use, the setting of the slide bar 201 can provide precise guidance for the rise of the slide plate 504, ensuring that the placement slot 502 and the prefabricated beam can rise vertically, ensuring the accuracy of the installation position, and the setting of the slide bar 201 increases the stability of the entire lifting mechanism 5, plays a supporting and balancing role in the rising process of the prefabricated beam, and reduces the possibility of shaking and deviation. At the same time, the slide bar 201 and the slide plate 504 work closely together and work together to complete the precise lifting and lowering operation of the prefabricated beam, thereby improving the coordination and work efficiency of the entire auxiliary device.
[0027] In this embodiment, Figure 4 As shown, the clamping mechanism 6 includes a plurality of electric telescopic rods 601, a clamping plate 602 and a clamping pad 603, the driving ends of the plurality of electric telescopic rods 601 horizontally penetrate the opposite side of the placement groove 502, the driving end of the electric telescopic rod 601 is provided with a clamping plate 602, and the opposite side of the clamping plate 602 is provided with a clamping pad 603; it should be noted that the operator can first place the prefabricated beam inside the placement groove 502 so that it is close to the surface of the anti-slip rubber pad 503, and then start the plurality of electric telescopic rods 601 at the same time through an external controller, so that the driving end thereof begins to extend horizontally and pushes the clamping plate 602 connected thereto, approaching the prefabricated beam placed in the middle, until the clamping plate 602 is provided on the opposite side of the clamping plate 602. The pad 603 can fit tightly to the outer walls on both sides of the prefabricated beam to complete the clamping and fixing of the prefabricated beam. In actual use, the prefabricated beam can be firmly clamped in the placement groove 502 through the setting of the clamping mechanism 6, thereby preventing it from shaking or shifting during transportation and installation. The design of the electric telescopic rod 601 enables the clamping mechanism 6 to adapt to prefabricated beams of different sizes, and precise clamping can be achieved by adjusting the extended length. Moreover, multiple electric telescopic rods 601 can be started simultaneously through an external controller to achieve fast and convenient clamping operations, thereby improving work efficiency. At the same time, the clamping pad 603 can prevent the clamping plate 602 from directly contacting the prefabricated beam, prevent damage to the surface of the prefabricated beam, and play a protective role.
[0028] The use method and advantages of the utility model: The working process of the automatic height adjustment auxiliary device for prefabricated beam components when in use is as follows:
[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the operator can first move the entire auxiliary device to the installation site through the universal wheel 7, and then simultaneously start the hydraulic cylinders A101 in four directions, so that the driving end begins to extend downward and pushes the abutment plate 102 connected thereto to descend together, until the anti-skid layer 103 arranged at the bottom of the abutment plate 102 can fit tightly to the ground, thereby completing the stable support of the entire auxiliary device, and then the prefabricated beam is hoisted into the inside of the placement groove 502 by the hoisting vehicle, so that it fits tightly to the surface of the anti-skid rubber pad 503, and The external controller simultaneously starts several electric telescopic rods 601, so that the driving end thereof begins to extend horizontally and pushes the clamping plate 602 connected thereto, and approaches the prefabricated beam placed in the middle, until the clamping pads 603 arranged on the opposite sides of the clamping plate 602 can be closely attached to the outer walls of both sides of the prefabricated beam, and the clamping and fixing of the prefabricated beam is completed. At this time, the operator can first start the first motor 303, so that it drives the first screw rod 302 connected thereto to start rotating, so that the first screw seat screwed to the outer wall of the first screw rod 302 304 can move laterally along the direction of the thread. At the same time, the Y-axis slide 4 and the lifting mechanism 5 arranged on the top of the first screw seat 304 will also be driven to move laterally together, so that the precast beam clamped and fixed on the top of the lifting mechanism 5 can adjust the position in the X-axis direction, and then the second motor 403 is started to drive the second screw 402 connected thereto to start rotating, so that the second screw seat 404 screwed to the outer wall of the second screw 402 can move along the direction of the thread. At the same time, the lifting mechanism 5 arranged on the top of the second screw seat 404 and the precast beam clamped on the top of the lifting mechanism 5 will be moved together, so as to realize the position adjustment of the precast beam in the Y-axis direction. At this time, the precast beam will be calibrated to a specific installation position. At the same time, the operator can start the two hydraulic cylinders B501 to make their driving ends start to extend upward and push the placement slot 502 connected thereto to rise. During this period, the precast beam clamped and fixed inside the placement slot 502 will be pushed up to the installation point for corresponding construction.
[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A prefabricated beam component height automatic adjustment auxiliary device, comprising a support mechanism (1), characterized in that: The top end of the support mechanism (1) is screwed to the four corners of the bottom of the base (2); an X-axis slide (3) is provided in the middle of the bottom wall of the base (2); a Y-axis slide (4) is provided on the top of the X-axis slide (3); a lifting mechanism (5) is screwed to the top of the Y-axis slide (4); a clamping mechanism (6) is laterally penetrated on the opposite side of the lifting mechanism (5); and universal wheels (7) are welded to the bottom of the base (2) near the four corners of the support mechanism (1).
2. The automatic height adjustment auxiliary device for prefabricated beam components according to claim 1, characterized in that: The support mechanism (1) comprises a hydraulic cylinder A (101), a stop plate (102) and an anti-slip layer (103); the top end of the hydraulic cylinder A (101) is screwed to the four corners of the bottom of the base (2); the driving end of the hydraulic cylinder A (101) is provided with a stop plate (102); and the bottom of the stop plate (102) is provided with an anti-slip layer (103).
3. The automatic height adjustment auxiliary device for prefabricated beam components according to claim 1, characterized in that: The X-axis slide table (3) comprises a first slide rail (301), a first screw rod (302), a first motor (303) and a first screw seat (304); the bottom of the first slide rail (301) is arranged at the middle of the bottom wall of the base (2); the two ends of the first screw rod (302) are rotatably connected to the left and right inner walls of the first slide rail (301); the first motor (303) is plugged into one end of the first screw rod (302); and the first screw seat (304) is screwed to the outer wall of the first screw rod (302).
4. The automatic height adjustment auxiliary device for prefabricated beam components according to claim 3 is characterized in that: The Y-axis slide (4) comprises a second slide rail (401), a second screw rod (402), a second motor (403), a second screw seat (404) and a support plate (405); the bottom of the second slide rail (401) is arranged on the top of the first screw seat (304); the two ends of the second screw rod (402) are rotatably connected to the left and right inner walls of the second slide rail (401); the second motor (403) is plugged into one end of the second screw rod (402); the second screw seat (404) is screwed to the outer wall of the second screw rod (402); and the top of the second screw seat (404) is provided with a support plate (405).
5. The automatic height adjustment auxiliary device for prefabricated beam components according to claim 4, characterized in that: The lifting mechanism (5) comprises a hydraulic cylinder B (501), a placement groove (502), an anti-skid rubber pad (503) and a slide plate (504); the bottoms of the two hydraulic cylinders B (501) are respectively screwed to the left and right sides of the top of the support plate (405); the driving ends of the two hydraulic cylinders B (501) are provided with a placement groove (502); the bottom wall of the placement groove (502) is provided with an anti-skid rubber pad (503); and the outer walls of the front and rear sides of the placement groove (502) are provided with slide plates (504).
6. The automatic height adjustment auxiliary device for prefabricated beam components according to claim 5, characterized in that: A plurality of sliding rods (201) are provided on both the front and rear sides of the top of the base (2), and the sliding plate (504) and the sliding rods (201) form a sliding connection.
7. The prefabricated beam component height automatic adjustment auxiliary device according to claim 5, characterized in that: The clamping mechanism (6) comprises a plurality of electric telescopic rods (601), a clamping plate (602) and a clamping pad (603), wherein the driving ends of the plurality of electric telescopic rods (601) transversely penetrate the opposite sides of the placement slot (502), the driving end of the electric telescopic rod (601) is provided with a clamping plate (602), and the opposite side of the clamping plate (602) is provided with a clamping pad (603).
Citation Information
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