Fork auxiliary frame of forklift for rapidly transporting penstock at adit section

Abstract

The utility model relates to the field of pressure steel pipe transportation devices, and discloses a fork auxiliary frame of a forklift for rapidly transporting pressure steel pipes in adit sections, which comprises a square main body, the two positioning frame groups are arranged on a cross rod at the bottom of the main body and are arranged side by side in the direction of the cross rod; each positioning frame set comprises positioning frames arranged on the front cross rod and the rear cross rod at the bottom respectively. The cross rods at the top of the main body are two U-shaped rods with opposite openings, a U-shaped extension frame is inserted into the front cross rod and the rear cross rod at the top, a plurality of mutually matched transverse through holes are formed between the outer side wall of the extension frame and the vertical surfaces of the cross rods, and the transverse through holes are locked through bolts and nuts; and the surface of the extension frame is also coated with an elastic cushion layer. The device is simple in overall structure, can effectively reduce cost compared with a transportation trolley of a customized special size, and meanwhile meets the transportation requirement of the pressure steel pipe of the adit section.

Description

Technical Field

[0001] The utility model relates to the field of pressure steel pipe transportation devices, in particular to a forklift fork auxiliary frame used for rapid transportation of pressure steel pipes in flat tunnel sections. Background Art

[0002] In water conservancy and hydropower projects, the function of penstocks is to bear part of the internal water pressure and prevent infiltration; the function of the backfill concrete between the penstock and the surrounding rock is to transfer part of the internal water pressure to the surrounding rock. At present, the method of transporting penstocks in water conservancy and hydropower projects is mostly to make a special trolley, place the steel pipe horizontally on the trolley, and rely on the winch system to move. Since this method does not fix the steel pipe, personnel need to track the steel pipe throughout the transportation process, which has great safety risks and difficult operation. At the same time, it is necessary to make a special trolley with the same size as the penstock to be transported to avoid safety problems such as slipping or loosening of the penstock during transportation. In the flat tunnel section, due to the overall small undulations of the terrain, the cost of making a special trolley is also high, which is not conducive to controlling the overall construction cost.

[0003] Therefore, a forklift fork auxiliary frame for rapid transportation of pressure steel pipes in flat tunnel sections is proposed to solve the above problems. Utility Model Content

[0004] The technical problem solved by the utility model is that when the existing special pressure steel pipe transport trolley is used in the flat tunnel section, since the sizes of the pressure steel pipes to be transported are usually not consistent, it is necessary to make a separate transport trolley of corresponding size according to the size of the pressure steel pipe each time, which leads to high cost, and the existing transport trolley is not fixed, which leads to high transportation safety risks and complicated and difficult operation.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: a forklift fork auxiliary frame for rapid transportation of flat tunnel section pressure steel pipes, comprising a square main body, the main body is a frame structure composed of a cross bar, a longitudinal bar and a vertical bar; further comprising two groups of positioning frame groups arranged on the cross bar at the bottom of the main body, the positioning frame groups are arranged side by side in the direction of the cross bar; a single positioning frame group comprises positioning frames respectively arranged on the front and rear cross bars at the bottom, the positioning frames are arranged vertically and match the size of the forklift forks;

[0006] The cross bar at the top of the main body is a U-shaped bar with two openings facing each other. A U-shaped extension frame is inserted into the front and rear cross bars at the top. A plurality of mutually matching transverse through holes are provided between the outer side wall of the extension tube and the vertical surface of the cross bar, and the transverse through holes are locked by bolts and nuts. The surface of the extension frame is also covered with an elastic cushion layer.

[0007] Particularly, an X-shaped reinforcement support is provided in the vertical plane of the main body.

[0008] Particularly, top support rods parallel to the longitudinal rods are arranged in the upper surface and the lower surface of the main body.

[0009] Particularly, a diagonal support rod is hingedly connected to the lower surface of the closed end of the extension frame. The diagonal support rod is a telescopic rod, and the other end of the diagonal support rod is hingedly connected to the vertical rod.

[0010] Furthermore, the diagonal support rod includes an upper hinge section and a lower hinge section which are sleeved with each other, and the sleeved parts of the upper hinge section and the lower hinge section are provided with mutually matching plug-in holes, and a pin shaft for locking the distance between the upper hinge section and the lower hinge section is inserted into the plug-in hole.

[0011] Particularly, the bottom crossbar is also provided with a locking longitudinal rod extending outward from the main body at a position corresponding to the positioning frame, and the locking longitudinal rod is provided with a vertical through slot, into which an anti-skid bolt is inserted for preventing the main body from slipping.

[0012] Compared with the prior art, the utility model has the following advantages and beneficial effects: the utility model has a simple overall structure, can effectively reduce costs compared to customizing a transport trolley of a specific size, and can meet the transportation needs of pressure steel pipes in the flat tunnel section. At the same time, the length of the extension frame of the utility model device can be adjusted, which can effectively adapt to pressure steel pipes of different sizes, further reducing the need for transport trolleys of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a usage state diagram of the utility model.

[0014] Figure 2 It is a structural schematic diagram of the utility model.

[0015] The meanings of the numbers in the figure are: horizontal bar—1; longitudinal bar—2; vertical bar—3; positioning frame—4; elastic cushion layer—5; extension frame—6; horizontal through hole—7; X-shaped reinforcement support—8; top support rod—9; diagonal support rod—10; upper hinge section—11; lower hinge section—12; plug-in hole—13; locking longitudinal rod—14; anti-slip bolt—15. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the accompanying drawings in the embodiments of the utility model, so as to have a further understanding of the concept of the utility model, the technical problems solved, the technical features constituting the technical solutions and the technical effects brought about.

[0017] like Figure 1~Figure 2As shown, a forklift fork auxiliary frame for rapid transportation of flat tunnel section pressure steel pipes includes a square main body, the main body is a frame structure composed of a cross bar 1, a longitudinal bar 2 and a vertical bar 3; it also includes two groups of positioning frame groups arranged on the cross bar 1 at the bottom of the main body, and the positioning frame groups are arranged side by side in the direction of the cross bar 1; a single positioning frame group includes positioning frames 4 respectively arranged on the front and rear cross bars 1 at the bottom, and the positioning frames 4 are vertically arranged and match the size of the forklift forks;

[0018] The cross bar 1 at the top of the main body is a U-shaped bar with two openings facing each other. A U-shaped extension frame 6 is inserted into the front and rear cross bars 1 at the top. A plurality of mutually matching transverse through holes 7 are provided between the outer side wall of the extension frame 6 and the vertical surface of the cross bar 1. The transverse through holes 7 are locked by bolts and nuts. The surface of the extension frame 6 is also covered with an elastic cushion layer 5.

[0019] In the utility model, the main working process is as follows: first, assemble and fix the main body, and adjust the length of the extension frame 6 inserted into the front and rear cross bars 1 according to the actual size of the pressure steel pipe to be transported, so that the position of the end of the extension frame 6 is approximately located at about 1 / 4 of the left and right sides of the pressure steel pipe when in contact with the pressure steel pipe, so as to obtain a better load-bearing effect and avoid the pressure steel pipe shaking caused by the load-bearing points on both sides of the pressure steel pipe being too close. Then, by adjusting the height of the forklift fork, the fork just passes through the positioning frame 4, and then slowly raising the height of the fork, and then raising the height of the main body, the elastic cushion layer 5 on the extension frame 6 on both sides of the main body slowly contacts the inner wall of the pressure steel pipe and lifts the pressure steel pipe. During the lifting process, the pressure steel pipe will automatically adjust the force position to ensure that the elastic cushion layer 5 on the left and right sides is evenly stressed, and to ensure the stability of the pressure steel pipe during transportation.

[0020] As a preferred embodiment, an X-shaped reinforcement support 8 is provided in the vertical surface of the main body.

[0021] In the present invention, an X-shaped reinforcing support 8 is arranged in the vertical plane of the main body, which can effectively increase the overall strength of the main body and avoid deformation of the main body during the transportation of the pressure steel pipe.

[0022] As a preferred embodiment, top support rods 9 parallel to the longitudinal rods 2 are provided in the upper and lower surfaces of the main body.

[0023] In this embodiment, the function of the top support rod 9 is to distribute the overall force, strengthen the strength in the direction of the longitudinal rod 2, and avoid deformation of the main body caused by excessive force.

[0024] As a preferred embodiment, a diagonal support rod 10 is hinged on the lower surface of the closed end of the extension frame 6 , and the diagonal support rod 10 is a telescopic rod, and the other end of the diagonal support rod 10 is hinged to the vertical rod 3 .

[0025] In this embodiment, the function of the diagonal brace rod 10 is to provide vertical support force for the extension frame 6, further strengthen the overall strength of the main body, and avoid deformation of the extension frame 6 caused by excessive force.

[0026] As a further embodiment, the diagonal support rod 10 includes an upper hinge section 11 and a lower hinge section 12 which are socketed with each other, and the socketed parts of the upper hinge section 11 and the lower hinge section 12 are provided with mutually matching plug-in holes 13, and a pin shaft for locking the distance between the upper hinge section 11 and the lower hinge section 12 is inserted into the plug-in hole 13.

[0027] The present embodiment provides a specific structure of a diagonal support rod 10, wherein an upper hinge section 11 and a lower hinge section 12 are mutually sleeved to realize the extension and retraction of the diagonal support rod 10, and a pin is inserted into a socket hole 13 to fix the diagonal support rod, thereby effectively preventing the extension frame 6 from being bent and deformed due to unilateral force on the extension frame 6.

[0028] As a preferred embodiment, the bottom cross bar 1 is further provided with a locking longitudinal rod 14 extending outward from the main body at a position corresponding to the positioning frame 4, and the locking longitudinal rod 14 is provided with a vertical through groove, and an anti-slip bolt 15 is inserted into the vertical through groove to prevent the main body from slipping.

[0029] In this embodiment, the direction of the locking longitudinal rod 14 is the same as that of the longitudinal rod 2 of the main body, and the anti-slip bolt 15 is not screwed in before the fork is inserted into the positioning frame 4. After the fork is inserted into the positioning frame 4, the anti-slip bolt 15 is screwed in, thereby limiting the position of the main body and preventing the main body from slipping due to vibration during the transportation of the pressure steel pipe, causing a safety accident.

[0030] The words “connection” and “fixation” appearing in the description of the present invention may refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meanings of the above terms in the present invention shall be understood according to the specific circumstances.

[0031] In the description of the present invention, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., which indicate the orientation or position relationship, are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying a specific orientation that the device or element referred to must have, and therefore cannot be understood as a limitation on the present invention.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A forklift fork auxiliary frame for rapid transportation of flat tunnel section pressure steel pipe, characterized in that: The invention comprises a square main body, wherein the main body is a frame structure composed of a cross bar (1), a longitudinal bar (2) and a vertical bar (3); and further comprises two groups of positioning frame groups arranged on the cross bar (1) at the bottom of the main body, wherein the positioning frame groups are arranged side by side in the direction of the cross bar (1); and a single positioning frame group comprises positioning frames (4) respectively arranged on the front and rear cross bars (1) at the bottom, wherein the positioning frames (4) are arranged vertically and match the size of a forklift fork; The cross bar (1) at the top of the main body is a U-shaped bar with two openings facing each other. A U-shaped extension frame (6) is inserted into the front and rear cross bars (1) at the top. A plurality of mutually matching transverse through holes (7) are provided between the outer side wall of the extension frame (6) and the vertical surface of the cross bar (1). The transverse through holes (7) are locked by bolts and nuts. The surface of the extension frame (6) is also covered with an elastic cushion layer (5).

2. The forklift fork auxiliary frame for rapid transportation of flat tunnel section pressure steel pipe according to claim 1, characterized in that: An X-shaped reinforcement support (8) is provided in the vertical surface of the main body.

3. The forklift auxiliary frame for rapid transportation of flat tunnel section pressure steel pipe according to claim 1, characterized in that: A top support rod (9) parallel to the longitudinal rod (2) is provided in the upper surface and the lower surface of the main body.

4. The forklift auxiliary frame for rapid transportation of flat tunnel section pressure steel pipe according to claim 1, characterized in that: A diagonal support rod (10) is hingedly connected to the lower surface of the closed end of the extension frame (6); the diagonal support rod (10) is a telescopic rod, and the other end of the diagonal support rod is hingedly connected to the vertical rod (3).

5. The forklift auxiliary frame for rapid transportation of flat tunnel section pressure steel pipe according to claim 4, characterized in that: The diagonal brace (10) comprises an upper hinge section (11) and a lower hinge section (12) which are sleeved together, the sleeved parts of the upper hinge section (11) and the lower hinge section (12) are provided with mutually matching plug-in holes (13), and a pin shaft for locking the distance between the upper hinge section (11) and the lower hinge section (12) is inserted into the plug-in hole (13).

6. The forklift fork auxiliary frame for rapid transportation of flat tunnel section pressure steel pipe according to claim 1, characterized in that: The bottom cross bar (1) is also provided with a locking longitudinal bar (14) extending outward from the main body at a position corresponding to the positioning frame (4), and the locking longitudinal bar (14) is provided with a vertical through slot, into which an anti-slip bolt (15) is inserted for preventing the main body from slipping.

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