Inner support automatic clamp

Abstract

The utility model relates to an inner support automatic clamp, which belongs to the clamp field, and comprises a longitudinal hoisting telescoping mechanism, a support mechanism and a pressing self-locking mechanism, the support mechanism and the pressing self-locking mechanism are respectively arranged on the outer side of the longitudinal hoisting telescoping mechanism, the longitudinal hoisting telescoping mechanism comprises a lifting lug, a main cylindrical pin shaft, two limiting steel plates, a lower stabilizing chute, a reinforcing rib and a limiting check ring. The internal support automatic clamp is simple in structure and convenient to mount and dismount, can ensure that the concrete drainage well chamber is mounted in a vertical and horizontal state, further ensures the mounting quality of the concrete drainage well chamber, can accelerate the construction speed, ensures the mounting precision, is remarkable in technical and economic benefits, simplifies the labor force, reduces the safety risk caused by hoisting, and improves the construction efficiency. The installation qualification rate of the concrete drainage well chamber is increased, the construction progress is accelerated, the center line is freely adjusted while the perpendicularity during installation is guaranteed, meanwhile, the device can be suitable for installation of pipelines with various pipe diameters, the construction difficulty is reduced, and the construction consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to an internal support automatic clamp. Background Art

[0002] In recent years, with the rapid development of my country's cities, more and more municipal road construction has shown a rapid development trend, and the construction of various types of pipelines on urban roads is also astonishing. In the process of construction, the design and construction of municipal pipelines are also increasing. However, there are certain problems in the construction of drainage pipelines, such as the smoothness of pipeline installation lines, the quality of pipeline interface installation, and the efficiency of pipeline installation. Common socket and spigot pipe construction methods include: crane lifting pipes and manually installing them with hand winches, bracket hand winch lifting and manual balanced installation and other traditional installation methods. How to solve the straightness, interface quality, installation efficiency, etc. during the installation of socket and spigot pipes is a problem faced by many technicians.

[0003] The common installation method of drainage well chamber is to lift the drainage well chamber with a crane and install it manually with a hand winch. Most traditional installation methods rely on the workers' construction experience to make homemade lifting devices and tools. These construction methods are prone to slow transfer speeds and low installation qualification rates, resulting in rework, waste of costs, and delays in construction period. In serious cases, it will affect the construction quality. Therefore, the installation technology of concrete drainage well chambers needs to be further improved and improved on the existing technology. Since the conventional method has complicated construction steps and consumes a lot of "people, machines, and materials", and because multiple people are required to work at the same time, the probability of "personal errors" increases, thereby increasing the difficulty of construction and resulting in low pipeline installation efficiency. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides an automatic internal support clamp with the advantages of convenient construction, which solves the problem of deviation of concrete drainage well chambers during installation and the need to re-position the mold when replacing concrete drainage well chambers with different pipe diameters.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: an internal support automatic clamp, comprising a longitudinal hoisting and telescopic mechanism and a support mechanism and a press self-locking mechanism respectively arranged on the outside of the longitudinal hoisting and telescopic mechanism;

[0006] The longitudinal lifting and telescopic mechanism includes a lifting ear, a main cylindrical pin shaft, two limiting steel plates, a lower stable slide groove, a reinforcing rib and a limiting retaining ring, wherein the top end of the main cylindrical pin shaft is welded to the bottom of the lifting ear, and the lower stable slide groove is sleeved on the outside of the main cylindrical pin shaft to limit the sliding direction of the main cylindrical pin shaft, and the two limiting steel plates are respectively welded to the outside of the main cylindrical pin shaft and the lower stable slide groove, the reinforcing rib is arranged in the middle of the lower stable slide groove, and the lower end of the main cylindrical pin shaft is provided with a groove, and the limiting retaining ring is arranged inside the groove to adjust the opening and closing angle of the support mechanism;

[0007] The support mechanism includes a first support bracket, a second support bracket, a bolt, a first support arm, a second support arm and an inner support plate, the first support bracket is fixed to the outer side of the main cylindrical pin shaft, the second support bracket is arranged on the outer side of the lower stabilizing slide groove for playing a supporting role, the top of the first support arm is connected to the first support bracket by a bolt, the middle of the second support arm is connected to the second support bracket by a bolt, and the top of the second support arm is connected to the bottom of the first arm by a bolt, and the inner support plate is connected to the bottom of the second arm by a bolt, so as to connect the first support arm, the second arm and the inner support plate as a whole through the bolts to play a movable supporting role;

[0008] The press-to-lock mechanism includes a bottom box and a top box, and the bottom box and the top box are respectively arranged on opposite sides of two limiting steel plates and are located on the same central axis.

[0009] Furthermore, the lower stabilizing chute is a seamless steel pipe, and the aperture of the lower stabilizing chute is larger than the diameter of the main cylindrical pin shaft.

[0010] Furthermore, the bolt is a hexagonal high-strength bolt, and a matching high-strength nut is provided on the outside of the bolt.

[0011] Furthermore, the number of the first supporting corbels and the second supporting corbels are both three, and are respectively distributed in a circular shape and equidistantly on the outside of the main cylindrical pin shaft and the lower stabilizing slide groove.

[0012] Furthermore, the number of the first supporting arms, the second supporting arms and the inner supporting plates is equal to the number of the first supporting corbels.

[0013] Furthermore, a plurality of cutting corners are provided on the outer side of the inner support plate, and the shape of the cutting corners is an inverted triangle, so as to play an anti-slip role.

[0014] Furthermore, the bottom box includes a convex shaft and two slots, and the two slots are a fixed slot and a movable slot respectively, and the top box includes an inner core, a nest-shaped spring and a cover plate.

[0015] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0016] The internal support automatic clamp has a simple structure, is easy to install and disassemble, is simple and flexible to operate, has a high turnover rate, reduces the workload of operators, saves costs, and is highly practical. It can ensure that the concrete drainage well chamber is installed in a vertical and horizontal state, thereby ensuring the installation quality of the concrete drainage well chamber, speeding up the construction speed, ensuring the installation accuracy, and having significant technical and economic benefits. It streamlines the labor force, reduces the safety risks caused by lifting, improves the qualified rate of concrete drainage well chamber installation, speeds up the construction progress, and can freely adjust the center line while ensuring the verticality during installation. At the same time, it can be applied to the installation of pipes of various diameters, reducing the difficulty of construction and reducing construction consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the support mechanism of the utility model;

[0019] Figure 3 For this utility model Figure 2 A schematic diagram of the structure at center A;

[0020] Figure 4 This is a schematic diagram of the push-to-lock mechanism of the utility model.

[0021] In the figure: 1. Longitudinal lifting and telescopic mechanism; 101. Lifting ear; 102. Main cylindrical pin; 103. Limiting steel plate; 104. Lower stabilizing slide; 105. Reinforcing rib; 106. Limiting retaining ring; 2. Support mechanism; 2011. First supporting bracket; 2012. Second supporting bracket; 202. Bolt; 203. First support arm; 204. Second support arm; 205. Inner support plate; 3. Press-on self-locking mechanism; 301. Bottom box; 302. Top box. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1: Please refer to Figures 1 to 4 In this embodiment, an internal support automatic clamp includes a longitudinal lifting and telescopic mechanism 1, a supporting mechanism 2 and a pressing self-locking mechanism 3 respectively arranged on the outside of the longitudinal lifting and telescopic mechanism 1.

[0024] Example 2: Please refer to Figures 1 to 4On the basis of the first embodiment, the longitudinal hoisting telescopic mechanism 1 in this embodiment includes a lifting ear 101, a main cylindrical pin shaft 102, two limiting steel plates 103, a lower stabilizing slide groove 104, a reinforcing rib 105 and a limiting retaining ring 106, wherein the top of the main cylindrical pin shaft 102 is welded to the bottom of the lifting ear 101, the lower stabilizing slide groove 104 is sleeved on the outside of the main cylindrical pin shaft 102 to limit the sliding direction of the main cylindrical pin shaft 102, and the two limiting steel plates 103 are welded to the main cylindrical pin shaft 102. On the outside of the pin shaft 102 and the lower stabilizing slide groove 104, the reinforcing rib 105 is arranged in the middle of the lower stabilizing slide groove 104. A groove is provided at the lower end of the main cylindrical pin shaft 102, and a limit ring 106 is arranged inside the groove to adjust the opening and closing angle of the support mechanism 2. After the lifting equipment is in place, a lifting rope or a U-shaped buckle is used to connect it to the lifting ear 101. At this time, the self-locking mechanism 3 is pressed in a locked state, and the support arm is also in a retracted state. The device is placed in the concrete drainage well room that needs to be lifted.

[0025] In this embodiment, the lower stabilizing chute 104 is a seamless steel pipe, and the aperture of the lower stabilizing chute 104 is larger than the diameter of the main cylindrical pin shaft 102 .

[0026] It should be noted that the lifting ear 101 is made of two centimeters thick steel plate cut according to the specified size, the main cylindrical pin shaft 102 is composed of a 45# steel cylinder with a diameter of 40 mm, the limiting steel plate 103 is cut from a five millimeter thick steel plate, the lower stabilizing slide 104 is made of a seamless steel pipe with an inner diameter of 42 mm, the reinforcing rib 105 is made of round steel with a diameter of 10 mm, and the limiting retaining ring 106 is made of a 65Mn manganese steel retaining ring.

[0027] Example 3: Please refer to Figures 2 to 3 On the basis of the first and second embodiments, the support mechanism 2 in this embodiment includes a first support bracket 2011, a second support bracket 2012, a bolt 202, a first support arm 203, a second support arm 204 and an inner support plate 205. The first support bracket 2011 is fixed to the outer side of the main cylindrical pin shaft 102, and the second support bracket 2012 is arranged on the outer side of the lower stabilizing slide groove 104 to play a supporting role. The top of the first support arm 203 is connected to the first support bracket 2011 by the bolt 202, the middle of the second support arm 204 is connected to the second support bracket 2012 by the bolt 202, and the top of the second support arm 204 is connected to the bottom of the first support arm 203 by the bolt 202, and the inner support plate 205 is connected to the bottom of the second support arm 204 by the bolt 202, so as to connect the first support arm 203, the second arm 204 and the inner support plate 205 as a whole through the bolt 202 to play a movable supporting role.

[0028] In this embodiment, the bolt 202 is a hexagonal high-strength bolt, and a matching high-strength nut is provided on the outside of the bolt 202. The number of the first support bracket 2011 and the second support bracket 2012 are both three, and they are respectively distributed in a circular manner and equidistantly on the outside of the main cylindrical pin shaft 102 and the lower stabilizing slide groove 104. The number of the first support arm 203, the second support arm 204 and the inner support plate 205 are equal to the number of the first support bracket 2011. The outer side of the inner support plate 205 is provided with several blade corners, and the shape of the blade corners is an inverted triangle to play an anti-slip role. The device is placed in the concrete drainage well room that needs to be hoisted, and the bottom box 301 and the top box 302 are pressed apart by the self-gravity of the device. At this time, the hoisting equipment lifts and causes the main cylindrical pin shaft 102 to slide upward, tightening the first support arm 203, opening the end of the second arm 204, and the inner support plate 205 is close to the inner wall of the well room, realizing the automatic lifting process.

[0029] It should be noted that the first supporting bracket 2011 is made of two pieces of 10 mm steel plates cut according to the specified shape, the second supporting bracket 2012 is made of a piece of 20 mm steel plate cut according to the specified shape, the bolt 202 is made of 8.8 grade M16*60 hexagonal high-strength bolt and matching high-strength nut, the first support arm 203 is made of 20 mm thick steel plate, the second support arm 204 is made of two pieces of 10 mm thick steel plate cut, and the inner support plate 205 is made of 20 mm thick cloth-reinforced rubber plate cut.

[0030] Example 3: Please refer to Figures 1 to 4 On the basis of Example 1 and Example 2, the press-to-lock mechanism 3 in this embodiment includes a bottom box 301 and a top box 302. The bottom box 301 and the top box 302 are respectively arranged on the opposite side of the two limiting steel plates 103 and the two are located on the same central axis. After the concrete drainage well chamber reaches the lifting position accurately, the lifting equipment lowers the lifted well chamber, and the main cylindrical pin shaft 102 slides downward to stretch the first support arm 203 and shrink the end of the second support arm 204. The inner support plate 205 leaves the inner wall of the well chamber, and the self-gravity of the device is used to press and lock the bottom box 301 and the top box 302 to realize the automatic lifting process.

[0031] In this embodiment, the bottom box 301 includes a protruding shaft and two slots, and the two slots are a fixed slot and a movable slot respectively. The top box 302 includes an inner core, a socket-shaped spring and a cover plate.

[0032] It should be noted that, when the top box 302 moves downward and is pressed and contacted with the bottom box 301 for the first time, the nest-shaped spring pops out and is locked in the fixed slot. At this time, the bottom box 301 and the top box 302 are combined into a fixed whole. When the top box 302 moves downward again and is pressed and contacted with the bottom box 301 for the second time, the nest-shaped spring pops out in the movable slot. At this time, the bottom box 301 and the top box 302 are separated.

[0033] The working principle of the above embodiment is:

[0034] After the lifting equipment is in place, it is connected to the lifting ear 101 by a lifting rope or U-shaped buckle. At this time, the self-locking mechanism 3 is pressed in a locked state, and the support arm is also in a retracted state. The device is placed in the concrete drainage well chamber that needs to be lifted, and the self-gravity of the device is used to press and separate the bottom box 301 and the top box 302. At this time, the lifting equipment lifts and causes the main cylindrical pin shaft 102 to slide upward, so that the first support arm 203 is tightened, the end of the second arm 204 is opened, and the inner support plate 205 is close to the wall of the well chamber to realize the automatic lifting process. After the concrete drainage well chamber accurately reaches the lifting position, the lifting equipment lowers the lifting well chamber, the main cylindrical pin shaft 102 slides downward, so that the first support arm 203 is stretched, the end of the second arm 204 is retracted, and the inner support plate 205 leaves the wall of the well chamber, and the self-gravity of the device is used to press and lock the bottom box 301 and the top box 302, thereby realizing the automatic lifting process.

[0035] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0036] If this patent discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), or as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by one-piece molding using a casting process) (except where it is obviously impossible to use an integrated molding process).

[0037] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. An automatic internal support fixture, characterized by: It comprises a longitudinal hoisting and telescopic mechanism (1), a supporting mechanism (2) and a pressing and self-locking mechanism (3) respectively arranged on the outside of the longitudinal hoisting and telescopic mechanism (1); The longitudinal hoisting telescopic mechanism (1) comprises a lifting ear (101), a main cylindrical pin shaft (102), two limiting steel plates (103), a lower stabilizing slide groove (104), a reinforcing rib (105) and a limiting retaining ring (106), wherein the top end of the main cylindrical pin shaft (102) is welded to the bottom of the lifting ear (101), the lower stabilizing slide groove (104) is sleeved on the outside of the main cylindrical pin shaft (102) to limit the sliding direction of the main cylindrical pin shaft (102), the two limiting steel plates (103) are respectively welded to the outside of the main cylindrical pin shaft (102) and the lower stabilizing slide groove (104), the reinforcing rib (105) is arranged in the middle of the lower stabilizing slide groove (104), the lower end of the main cylindrical pin shaft (102) is provided with a groove, and the limiting retaining ring (106) is arranged inside the groove to adjust the opening and closing angle of the support mechanism (2); The support mechanism (2) comprises a first support bracket (2011), a second support bracket (2012), a bolt (202), a first support arm (203), a second support arm (204) and an inner support plate (205); the first support bracket (2011) is fixed to the outside of the main cylindrical pin shaft (102); the second support bracket (2012) is arranged on the outside of the lower stabilizing chute (104) to play a supporting role; the top end of the first support arm (203) is connected to the first support bracket by the bolt (202); (2011), the middle part of the second support arm (204) is connected to the second support leg (2012) through a bolt (202), and the top of the second support arm (204) is connected to the bottom of the first support arm (203) through a bolt (202), and the inner support plate (205) is connected to the bottom of the second support arm (204) through a bolt (202), so as to connect the first support arm (203) and the second support arm (204) and the inner support plate (205) as a whole through the bolt (202) to play a movable supporting role; The press-to-lock mechanism (3) comprises a bottom box (301) and a top box (302), wherein the bottom box (301) and the top box (302) are respectively arranged on opposite sides of two limiting steel plates (103) and are both located on the same central axis.

2. The automatic internal support fixture according to claim 1, characterized in that: The lower stabilizing chute (104) is a seamless steel pipe, and the aperture of the lower stabilizing chute (104) is larger than the diameter of the main cylindrical pin shaft (102).

3. The automatic internal support fixture according to claim 1, characterized in that: The bolt (202) is a hexagonal high-strength bolt, and a matching high-strength nut is provided on the outside of the bolt (202).

4. The automatic internal support fixture according to claim 1, characterized in that: The number of the first supporting corbels (2011) and the second supporting corbels (2012) are both three, and are respectively distributed in a circular shape and at equal intervals on the outside of the main cylindrical pin shaft (102) and the lower stabilizing slide groove (104).

5. The automatic internal support fixture according to claim 4, characterized in that: The number of the first supporting arms (203), the second supporting arms (204) and the inner supporting plates (205) is equal to the number of the first supporting corbels (2011).

6. The automatic internal support fixture according to claim 1, characterized in that: The outer side of the inner support plate (205) is provided with a plurality of cutting corners, and the shape of the cutting corners is an inverted triangle, so as to play an anti-slip role.

7. The automatic internal support fixture according to claim 1, characterized in that: The bottom box (301) comprises a convex shaft and two slots, wherein the two slots are respectively a fixed slot and a movable slot, and the top box (302) comprises an inner core, a nest-shaped spring and a cover plate.

Images