A thread transition type stepless adjustment device

Abstract

The present invention discloses a thread transition type stepless adjustment device, which belongs to the technical field of stepless adjustment. The thread transition type stepless adjustment device comprises an external thread fixing seat and an internal thread adjustment sleeve, wherein the external thread fixing seat and the internal thread adjustment sleeve are connected by a trapezoidal thread, and the outer wall of the internal thread adjustment sleeve is also fixedly connected with a plurality of rotating handles, and the internal thread adjustment sleeve is driven to rotate up or down on the external thread fixing seat by rotating the rotating handle, thereby realizing stepless adjustment; a toothed stop iron is provided at the end of the external thread fixing seat, and the toothed stop iron is inserted into a fixing seat in an external embedded platform box body, where fixed toothed stop irons are arranged in an interlaced manner according to the same rule, and the toothed stop iron is turned under the fixed toothed stop iron by rotating the external thread fixing seat by one tooth pitch, thereby realizing the fixing of the external thread fixing seat on the platform box body.

Description

Technical Field

[0001] The invention relates to the technical field of stepless adjustment, and in particular to a thread transition type stepless adjustment device. Background Art

[0002] When troops use elevated platforms as weapons or for garrison in emergencies, the platform support structure usually uses spliced ​​piles. However, due to the changeable field environment and the uneven ground, it is difficult to ensure the flatness of the upper structure platform when using piles of fixed length for splicing, and the platform piles experience uneven settlement and cannot be adjusted, which can easily lead to safety hazards due to uneven force on the piles. Summary of the invention

[0003] The purpose of the present invention is to provide a thread transition type stepless adjustment device to solve the problem that the existing spliced ​​pile columns cannot achieve small-amplitude adjustment and adapt to terrain.

[0004] In order to solve the above technical problems, the present invention provides a thread transition type stepless adjustment device, comprising an external thread fixing seat and an internal thread adjustment sleeve, wherein the external thread fixing seat and the internal thread adjustment sleeve are connected via a trapezoidal thread;

[0005] The internal thread adjustment sleeve is provided with a plurality of pairs of pin holes;

[0006] The external thread fixing seat is fixedly connected with a base near the end position;

[0007] The base is fixedly connected with an ear plate to provide a fixing point for pile lifting;

[0008] The outer wall of the internal thread adjustment sleeve is also fixedly connected with a plurality of rotating handles.

[0009] Optionally, a slotted tooth stop iron is provided at the end of the externally threaded fixing seat, and a plurality of rectangular teeth are evenly distributed on the outer circle of the slotted tooth stop iron. The rectangular teeth are inserted into a fixing seat in the external embedded platform box body, in which fixed tooth stop irons are arranged in an alternating pattern according to the same rule. By rotating the externally threaded fixing seat by one tooth pitch, the slotted tooth stop iron is transferred under the fixed tooth stop iron, thereby realizing the fixation of the externally threaded fixing seat on the platform box body.

[0010] Optionally, the base is provided with a plurality of through holes for passing fixing pins to lock the adjusted externally threaded fixing seat with the fixing seat.

[0011] Optionally, the latch holes are arranged in a vertical direction according to the pitch of the thread, and the latch holes are arranged in pairs and symmetrically distributed on the internal thread adjustment sleeve.

[0012] Optionally, a plurality of reinforcing rib plates are connected to the base, and the reinforcing rib plates are trapezoidal in shape, and two right-angled sides are respectively fixedly connected to the base and the side wall of the external thread fixing seat.

[0013] Optionally, four ear plates are provided and distributed in pairs on both sides of the externally threaded fixing seat, and the ear plates are fixedly connected to the base and the side walls of the externally threaded fixing seat respectively.

[0014] Optionally, the ear plate is provided with an ear plate hole, and a pin is inserted into the ear plate hole to provide a fixing point for lifting the external pile column.

[0015] Optionally, four rotating handles are provided and evenly distributed on the internal thread adjustment sleeve.

[0016] In a thread transition type stepless adjustment device provided by the present invention, it includes an external thread fixing seat and an internal thread adjustment sleeve, the external thread fixing seat and the internal thread adjustment sleeve are connected by a trapezoidal thread, and the outer wall of the internal thread adjustment sleeve is also fixedly connected with a plurality of rotating handles, and the rotating handles are rotated to drive the internal thread adjustment sleeve to rotate up or down on the external thread fixing seat, thereby realizing stepless adjustment; the end of the external thread fixing seat is provided with a gear stop iron, and the gear stop iron is inserted into a fixing seat in the external embedded platform box body where fixed gear stop irons are staggered according to the same rule, and the external thread fixing seat is rotated by one tooth pitch, and the gear stop iron is transferred under the fixed gear stop iron, thereby realizing the fixation of the external thread fixing seat on the platform box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a top view of a thread transition type stepless adjustment device provided by the present invention;

[0018] Figure 2 It is a cross-sectional view of the AA surface of a thread transition type stepless adjustment device provided by the present invention;

[0019] Figure 3 It is a BB-surface cross-sectional view of a thread transition type stepless adjustment device provided by the present invention;

[0020] Figure 4 It is an enlarged view of the position C of a thread transition type stepless adjustment device provided by the present invention;

[0021] Figure 5 The present invention provides a schematic structural diagram of a slotted stop iron of a thread transition type stepless adjustment device. DETAILED DESCRIPTION

[0022] The following is a further detailed description of a thread transition type stepless adjustment device proposed by the present invention in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the accompanying drawings are in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0023] The present invention provides a thread transition type stepless adjustment device, the structure of which is as follows: Figure 1 and Figure 2 As shown, it includes an external thread fixing seat 1 and an internal thread adjusting sleeve 2, as shown in Figure 4 As shown, the external thread fixing seat 1 and the internal thread adjusting sleeve 2 are connected by a trapezoidal thread 3. The trapezoidal thread has a large force-bearing area and a large load-bearing capacity, and can be applied to various large-load environments; the internal thread adjusting sleeve 2 is provided with a plurality of pairs of pin holes 4 related to the thread pitch; the external thread fixing seat 1 is fixedly connected with a base 5 near the end position; the base 5 is fixedly connected with an ear plate 6 to provide a fixing point for pile lifting; the outer wall of the internal thread adjusting sleeve 2 is also fixedly connected with a plurality of rotating handles 7, and four rotating handles 7 are provided, which are evenly distributed on the internal thread adjusting sleeve 2, and the four rotating handles 7 can ensure that they can be rotated at any angle, reducing the difficulty of operation.

[0024] Specifically, Figure 2 and Figure 3 As shown, the end of the external thread fixing seat 1 is provided with a toothed stopper 10. Figure 5 As shown, a plurality of rectangular teeth 101 are evenly distributed on the outer circumference of the slotted gear stop iron 10, and the rectangular teeth 101 are inserted into a fixing seat in the external embedded platform box body, which is staggered with fixed gear stop irons according to the same rule. By rotating the external threaded fixing seat 1 by one tooth pitch, the slotted gear stop iron 10 is transferred under the fixed gear stop iron, thereby realizing the fixation of the external threaded fixing seat 1 on the platform box body; a plurality of through holes 9 are opened on the base 5, and fixing pins are passed through the through holes 9. When the external threaded fixing seat 1 is adjusted to a specified position, the fixing pins can be lowered to lock the adjusted external threaded fixing seat 1 with the fixing seat.

[0025] Specifically, the latch holes 4 are arranged in the vertical direction according to the pitch of the thread, and the latch holes 4 are arranged in pairs and symmetrically distributed on the internal thread adjustment sleeve 2. According to the thread rotation pitch, the number of the latch holes 4 on the internal thread adjustment sleeve 2, and the tolerance design of the gap between the pin and the hole, the latch holes 4 on the internal thread adjustment sleeve 2 are aligned with the holes on the external pile column, and the fixing latch can be smoothly inserted to achieve the fixation between the external thread fixing seat 1 and the internal thread adjustment sleeve 2; the base 5 It is also connected to a plurality of reinforcing rib plates 8, which are trapezoidal in shape, and whose two right-angled sides are respectively fixedly connected to the base 5 and the side wall of the externally threaded fixing seat 1, so as to increase the stability of the externally threaded fixing seat 1; four ear plates 6 are provided, which are distributed in pairs on both sides of the externally threaded fixing seat 1, and the ear plates 6 are respectively fixedly connected to the base 5 and the side wall of the externally threaded fixing seat 1, and the ear plate holes 61 are opened on the ear plates 6, and the pins are inserted into the ear plate holes 61, so as to provide fixing points for external pile lifting.

[0026] The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A thread transition type stepless adjustment device, characterized in that: It comprises an externally threaded fixing seat (1) and an internally threaded adjusting sleeve (2), wherein the externally threaded fixing seat (1) and the internally threaded adjusting sleeve (2) are connected via a trapezoidal thread (3); The internal thread adjustment sleeve (2) is provided with a plurality of pairs of pin holes (4); The external thread fixing seat (1) is fixedly connected to a base (5) near the end position; The base (5) is fixedly connected with an ear plate (6) for providing a fixing point for pile lifting; The outer wall of the internal thread adjustment sleeve (2) is also fixedly connected to a plurality of rotating handles (7); A toothed stop iron (10) is provided at the end of the external threaded fixing seat (1), and a plurality of rectangular teeth (101) are evenly distributed on the outer circumference of the toothed stop iron (10). The rectangular teeth (101) are inserted into a fixing seat in the external embedded platform box body, where fixed toothed stop irons are arranged in a staggered manner according to the same rule. By rotating the external threaded fixing seat (1) by one tooth pitch, the toothed stop iron (10) is rotated under the fixed toothed stop iron, thereby achieving the fixing of the external threaded fixing seat (1) on the platform box body; The base (5) is provided with a plurality of through holes (9) for passing fixing pins through to lock the adjusted external thread fixing seat (1) with the fixing seat; The pin holes (4) are arranged in a vertical direction according to the pitch of the thread, and the pin holes (4) are arranged in pairs and are symmetrically distributed on the internal thread adjustment sleeve (2); Four ear plates (6) are provided and distributed in pairs on both sides of the externally threaded fixing seat (1); the ear plates (6) are respectively fixedly connected to the base (5) and the side wall of the externally threaded fixing seat (1); The ear plate (6) is provided with an ear plate hole (61), and a pin is inserted into the ear plate hole (61), so as to provide a fixing point for lifting the external pile column.

2. A thread transition type stepless adjustment device as claimed in claim 1, characterized in that: The base (5) is also connected to a plurality of reinforcing rib plates (8), wherein the reinforcing rib plates (8) are trapezoidal in shape, and two right-angled sides are respectively fixedly connected to the base (5) and the side wall of the externally threaded fixing seat (1).

3. A thread transition type stepless adjustment device as claimed in claim 1, characterized in that: Four rotating handles (7) are provided and are evenly distributed on the internally threaded adjustment sleeve (2).

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