Climbing jack

Abstract

This utility model relates to the technical field of jacks, and in particular to climbing formwork jacks. It utilizes the alternating movement of a first locking component and a second locking component to allow the jack to climb upwards, improving the locking reliability and ease of use. The jack includes a support platform and a lower sleeve, with the bottom of the lower sleeve connected to the top of the support platform. It also includes a locking device, a pushing device, a connecting seat, an upper sleeve, and an oil inlet pipe. The connecting seat is installed at the top of the lower sleeve, and the upper sleeve is installed at the top of the connecting seat. The oil inlet pipe is connected to the upper sleeve. A pushing device is installed inside the upper sleeve, and a locking device is installed at the bottom of the lower sleeve and the support platform. The locking device is used to position the jack, and the pushing device is used to push the locking device.

Description

Technical Field

[0001] This utility model relates to the technical field of jacks, and in particular to climbing formwork jacks. Background Technology

[0002] With the rapid development of the construction industry, the requirements for construction technology for high-rise buildings and large structures are increasing. In traditional construction, the installation, dismantling, and lifting of formwork often consume a lot of manpower and time, and the construction efficiency is low, making it difficult to meet the needs of modern construction projects. Against this backdrop, climbing formwork jacks have emerged as a new type of formwork lifting equipment.

[0003] Currently, among the existing climbing formwork jacks, such as the patent with authorization announcement number CN214780458U, this hydraulic climbing formwork jack consists of a hydraulic cylinder, a climbing rod, an inner steel frame, and an outer frame tie rod. The hydraulic cylinder consists of a lower cover, an inner cylinder, a cylinder barrel, a piston, and an upper cover. The hydraulic cylinder has a through hole, and the climbing rod passes through the piston rod and the inner cylinder. The inner steel frame is fixed to the support plate at the upper end of the climbing rod by an upper clamp. A slider is set between the upper clamp and the climbing rod. The upper end of the outer frame tie rod is fixed to the top plate above the support plate by screws.

[0004] However, it was found during use that the jack was not easy to lock, which increased the complexity of the structure and reduced the reliability of its use. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a climbing jack that improves the locking reliability and ease of use by alternating movement between the first and second locking components, thereby enabling the jack to climb upwards.

[0006] This utility model discloses a climbing formwork jack, comprising a support platform and a lower sleeve, with the bottom end of the lower sleeve connected to the top end of the support platform. It also includes a locking device, a pushing device, a connecting seat, an upper sleeve, and an oil inlet pipe. The connecting seat is installed at the top end of the lower sleeve, and the upper sleeve is installed at the top end of the connecting seat. The oil inlet pipe is connected to the upper sleeve. A pushing device is installed inside the upper sleeve, and a locking device is installed at the bottom of the lower sleeve and the support platform. The locking device is used to position the jack, and the pushing device is used to push the locking device. The support platform, lower sleeve, connecting seat, and upper sleeve are fitted onto the outside of a support column. At this time, the locking device is simultaneously fitted onto the support column. The locking device uses the weight of the jack to lock itself to the support column. Hydraulic oil is delivered to the upper sleeve through the oil inlet pipe. The hydraulic oil inside the upper sleeve provides power to the pushing device, causing it to push against the locking device. This causes the locking device to move the jack upwards. Through the alternating movement of the locking device, the jack climbs upwards, improving the stability and reliability of the jack's climbing motion.

[0007] Preferably, the locking device includes a first locking member, a connecting plate, a second locking member, an inclined groove, a first spring, steel balls, and a second spring. The first locking member is disposed inside the lower sleeve, and the second spring is fitted onto the outside of the first locking member. The bottom end of the connecting plate is connected to the top end of the first locking member. The second locking member is installed at the bottom end of the support platform. Multiple sets of inclined grooves are respectively disposed on the inner sidewalls of the first and second locking members, and the top of the multiple sets of inclined grooves is provided with a self-locking angle. Multiple sets of first springs are respectively fitted into the multiple sets of inclined grooves, and multiple sets of steel balls are respectively disposed at the top of the multiple sets of inclined grooves and at the top of the multiple sets of first springs. The first and second locking members are fitted onto the outside of the support column, and the multiple sets of first springs provide a pushing force to the multiple sets of steel balls, causing the multiple sets of steel balls to contact the surface of the support column. The weight of the jack causes it to move downwards. As the jack moves downwards, multiple sets of steel balls rotate in the forward direction. At this time, the steel balls are displaced by the push of the first spring and locked between the displacement and the self-locking angle, thus locking the rotation of the multiple sets of steel balls and fixing the jack to the support column. When the pushing device moves downwards, it is supported and fixed by the first locking member, causing the pushing device to drive the jack upwards and compress the second spring. At this time, the multiple sets of steel balls in the second locking member separate from the self-locking angle and rotate in the opposite direction. When the pushing device moves upwards to reset, the multiple sets of steel balls in the second locking member remain stationary, and the first locking member moves upwards to reset. Through the alternating movement between the first and second locking members, the jack climbs upwards, improving the locking reliability of the jack and increasing its ease of use.

[0008] Preferably, the pushing device includes a piston and a cylinder. The piston is slidably installed inside the upper sleeve, and the cylinder is installed on the piston. The bottom end of the cylinder is connected to the top end of the connecting plate. After the hydraulic oil enters through the oil inlet pipe, the first clamp cannot move downward, thus causing the hydraulic oil to push the upper sleeve upward. After the upper sleeve moves upward, it drives the lower sleeve, the support platform, and the second clamp to move upward. At this time, the jack climbs upward and compresses the second spring. When the hydraulic oil is discharged, the pushing force of the second spring causes the first clamp to move upward. At the same time, the first clamp drives the piston and the cylinder to move upward and reset. This process is repeated to achieve the alternating movement of the first clamp and the second clamp.

[0009] Preferably, it also includes an internal threaded sleeve and an external threaded sleeve, with the internal threaded sleeve located at the top of the upper sleeve and the external threaded sleeve installed on the internal threaded sleeve; by setting the internal threaded sleeve and the external threaded sleeve, the convenience of guiding and adjusting the jack during climbing is improved.

[0010] Preferably, it also includes a polygonal component, which is installed on the top of the external threaded sleeve; this improves the convenience of rotating the external threaded sleeve.

[0011] Preferably, it also includes multiple sets of connecting rods, which are respectively installed between the support platform, the connecting seat, and the upper sleeve; thereby improving the ease of installation between the support platform, the connecting seat, and the upper sleeve.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the support platform, lower sleeve, connecting seat and upper sleeve are fitted on the outside of the support column. At this time, the locking device is also fitted on the support column. The locking device uses the weight of the jack to lock with the support column. Hydraulic oil is delivered to the inside of the upper sleeve through the oil inlet pipe. The hydraulic oil entering the upper sleeve provides power to the pushing device, so that the pushing device pushes the locking device, thereby causing the locking device to drive the jack to move upward. Through the alternating movement of the locking device, the jack is raised upward, thereby improving the stability and reliability of the jack's climbing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0014] Figure 2 This is an isometric structural diagram of the connection between the upper sleeve and the oil inlet pipe, etc.

[0015] Figure 3 This is an isometric structural diagram of the connection between the piston and the cylinder, etc.

[0016] Figure 4 This is an isometric structural diagram of the connection between the lower sleeve and the connecting seat, etc.

[0017] Figure 5 This is a partial isometric structural diagram showing the connection between the first card and the connecting plate, etc.

[0018] The following are labels in the attached diagram: 1. Support platform; 2. Lower sleeve; 3. Connecting seat; 4. Upper sleeve; 5. Oil inlet pipe; 6. First clamping piece; 7. Connecting plate; 8. Second clamping piece; 9. Inclined groove; 10. First spring; 11. Steel ball; 12. Piston; 13. Cylinder body; 14. Internal threaded sleeve; 15. External threaded sleeve; 16. Polygonal piece; 17. Second spring; 18. Connecting rod. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0020] Example 1

[0021] like Figures 1 to 5As shown, the climbing formwork jack of this utility model includes a support platform 1 and a lower sleeve 2, with the bottom end of the lower sleeve 2 connected to the top end of the support platform 1; it also includes a locking device, a pushing device, a connecting seat 3, an upper sleeve 4, and an oil inlet pipe 5. The connecting seat 3 is installed at the top end of the lower sleeve 2, and the upper sleeve 4 is installed at the top end of the connecting seat 3. The oil inlet pipe 5 is connected to the upper sleeve 4. The pushing device is installed inside the upper sleeve 4, and the locking device is installed at the bottom of the lower sleeve 2 and the support platform 1. The locking device is used to position the jack, and the pushing device is used to push the locking device.

[0022] like Figure 2 and Figure 3 As shown, the locking device includes a first locking member 6, a connecting plate 7, a second locking member 8, an inclined groove 9, a first spring 10, a steel ball 11, and a second spring 17. The first locking member 6 is disposed inside the lower sleeve 2, and the second spring 17 is fitted onto the outside of the first locking member 6. The bottom end of the connecting plate 7 is connected to the top end of the first locking member 6. The second locking member 8 is installed at the bottom end of the support platform 1. Multiple sets of inclined grooves 9 are respectively disposed on the inner sidewalls of the first locking member 6 and the second locking member 8. The top of the multiple sets of inclined grooves 9 is provided with a self-locking angle. Multiple sets of first springs 10 are respectively fitted into the multiple sets of inclined grooves 9. Multiple sets of steel balls 11 are respectively disposed on the top of the multiple sets of inclined grooves 9, and the multiple sets of steel balls 11 are disposed on the top of the multiple sets of first springs 10.

[0023] In this embodiment, the support platform 1, lower sleeve 2, connecting seat 3, and upper sleeve 4 are fitted onto the outside of the support column. At the same time, the locking device is fitted onto the support column. The locking device uses the weight of the jack to lock with the support column. Hydraulic oil is delivered to the inside of the upper sleeve 4 through the oil inlet pipe 5. The hydraulic oil entering the upper sleeve 4 provides power to the pushing device, causing the pushing device to push against the locking device. This causes the locking device to drive the jack to move upward. Through the alternating movement of the locking device, the jack climbs upward, improving the stability and reliability of the jack's climbing.

[0024] Example 2

[0025] Based on Example 1, such as Figure 3 As shown, the climbing formwork jack of this utility model includes a piston 12 and a cylinder 13 as the pushing device. The piston 12 is slidably installed inside the upper sleeve 4, and the cylinder 13 is installed on the piston 12. The bottom end of the cylinder 13 is connected to the top end of the connecting plate 7.

[0026] like Figure 3 As shown, it also includes an internal threaded sleeve 14 and an external threaded sleeve 15. The internal threaded sleeve 14 is disposed at the top of the upper sleeve 4, and the external threaded sleeve 15 is mounted on the internal threaded sleeve 14.

[0027] like Figure 3 As shown, it also includes a polygonal piece 16, which is mounted on the top of the external threaded sleeve 15;

[0028] like Figure 1 As shown, it also includes multiple sets of connecting rods 18, which are respectively installed between the support platform 1, the connecting seat 3 and the upper sleeve 4;

[0029] In this embodiment, the first locking member 6 and the second locking member 8 are fitted onto the outside of the support column. Multiple sets of first springs 10 provide pushing force to multiple sets of steel balls 11, causing the steel balls 11 to contact the surface of the support column. Due to the weight of the jack, it moves downwards. When the jack moves downwards, the steel balls 11 rotate in the forward direction. At this time, the steel balls 11 are displaced by the pushing of the first springs 10 and locked between the displacement and the self-locking angle, thus locking the rotation of the steel balls 11 and fixing the jack to the support column. When the pushing device moves downwards, the support and fixation of the first locking member 6 causes the pushing device to drive the jack upwards and compress the second spring 17. At this time, the steel balls 11 inside the second locking member 8 separate from the self-locking angle and rotate in the opposite direction. When the pushing device moves upwards to reset... The multiple sets of steel balls 11 inside the second locking member 8 are fixed in place, while the first locking member 6 moves upward to reset. Through the alternating movement between the first locking member 6 and the second locking member 8, the jack is able to climb upward, improving the locking reliability of the jack and enhancing its ease of use. After the hydraulic oil enters through the oil inlet pipe 5, since the first locking member 6 cannot move downward, the hydraulic oil pushes the upper sleeve 4 upward. After the upper sleeve 4 moves upward, it drives the lower sleeve 2, the support platform 1, and the second locking member 8 to move upward. At this time, the jack climbs upward and compresses the second spring 17. When the hydraulic oil is discharged, the pushing force of the second spring 17 causes the first locking member 6 to move upward. At the same time, the first locking member 6 drives the piston 12 and the cylinder 13 to move upward to reset. This process is repeated to achieve the alternating movement of the first locking member 6 and the second locking member 8.

[0030] The climbing formwork jack of this utility model, when in operation, has a support platform 1, a lower sleeve 2, a connecting seat 3, and an upper sleeve 4 fitted onto the outside of a support column. At the same time, a locking device is fitted onto the support column. The locking device uses the weight of the jack to lock itself to the support column. Hydraulic oil is delivered to the inside of the upper sleeve 4 through the oil inlet pipe 5. The hydraulic oil entering the upper sleeve 4 provides power to the pushing device, causing the pushing device to push against the locking device, thereby causing the locking device to drive the jack to move upward. Through the alternating movement of the locking device, the jack is thus lifted upward.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A climbing formwork jack, comprising a support platform (1) and a lower sleeve (2), wherein the bottom end of the lower sleeve (2) is connected to the top end of the support platform (1); characterized in that, It also includes a locking device, a pushing device, a connecting seat (3), an upper sleeve (4) and an oil inlet pipe (5). The connecting seat (3) is installed at the top of the lower sleeve (2), and the upper sleeve (4) is installed at the top of the connecting seat (3). The oil inlet pipe (5) is connected to the upper sleeve (4). A pushing device is installed inside the upper sleeve (4). A locking device is installed at the bottom of the lower sleeve (2) and the support platform (1). The locking device is used to position the jack, and the pushing device is used to push the locking device.

2. The climbing formwork jack as described in claim 1, characterized in that, The locking device includes a first locking piece (6), a connecting plate (7), a second locking piece (8), an inclined groove (9), a first spring (10), a steel ball (11), and a second spring (17). The first locking piece (6) is located inside the lower sleeve (2), and the second spring (17) is fitted onto the outside of the first locking piece (6). The bottom end of the connecting plate (7) is connected to the top end of the first locking piece (6). The second locking piece (8) is installed at the bottom end of the support platform (1). Multiple inclined grooves (9) are respectively located on the inner sidewalls of the first locking piece (6) and the second locking piece (8). The top of the multiple inclined grooves (9) is provided with a self-locking angle. Multiple first springs (10) are respectively fitted into the multiple inclined grooves (9). Multiple steel balls (11) are respectively located at the top of the multiple inclined grooves (9) and at the top of the multiple first springs (10).

3. The climbing formwork jack as described in claim 1, characterized in that, The pushing device includes a piston (12) and a cylinder (13). The piston (12) is slidably mounted inside the upper sleeve (4), and the cylinder (13) is mounted on the piston (12). The bottom end of the cylinder (13) is connected to the top end of the connecting plate (7).

4. The climbing formwork jack as described in claim 1, characterized in that, It also includes an internal threaded sleeve (14) and an external threaded sleeve (15). The internal threaded sleeve (14) is located at the top of the upper sleeve (4), and the external threaded sleeve (15) is installed on the internal threaded sleeve (14).

5. The climbing formwork jack as described in claim 4, characterized in that, It also includes a polygonal piece (16), which is mounted on the top of the external threaded sleeve (15).

6. The climbing formwork jack as described in claim 1, characterized in that, It also includes multiple sets of connecting rods (18), which are installed between the support platform (1), the connecting seat (3) and the upper sleeve (4).

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