Lead screw supporting device

Abstract

The utility model belongs to civil engineering indoor test equipment, and discloses a lead screw supporting device which comprises a device base, a cylindrical supporting seat and a lower lead screw check block. A support mounting hole is formed in the upper surface of the device base, the lower end of the cylindrical supporting seat is mounted in the support mounting hole in a matched mode, and the upper end of the cylindrical supporting seat vertically extends upwards. The lower end of the cylindrical supporting seat is in threaded connection with the support mounting hole; the lower lead screw check blocks are vertically arranged on the top face of the cylindrical supporting base and symmetrically distributed on the two sides of the axis of a lead screw to be supported. According to the utility model, only the lead screw needs to be placed on the top surface of the cylindrical supporting seat, manual supporting is not needed, and the mounting efficiency of the lead screw is effectively improved; secondly, the height of the cylindrical supporting base can be freely adjusted, and the requirement for supporting lead screws with different installation heights is met; in addition, the lower lead screw check block is arranged, so that the lead screw is prevented from rolling on the cylindrical support.

Description

Technical Field

[0001] This utility model belongs to the technical field of indoor testing equipment for civil engineering, and specifically relates to a screw support device. Background Technology

[0002] In indoor tests in civil engineering, it is often necessary to use lead screws to simulate loads inside building models. For example, in earth pressure simulation tests, a lead screw weighing about 20 kg needs to be installed between two side wall models to apply loads to the side wall models for simulation tests.

[0003] Currently, lead screws are usually installed manually. Since the installation process is often carried out in a narrow space and requires multiple adjustments and fixing steps, the operation is extremely difficult, time-consuming, and laborious, which greatly reduces the efficiency of the test and the accuracy of the test results. Utility Model Content

[0004] In view of the technical problems existing in the prior art, this utility model provides a screw support device to solve the technical problem that the screw installation process in existing civil engineering tests is extremely difficult and time-consuming.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] This utility model provides a lead screw support device, including a device base, a cylindrical support seat and a lower lead screw stop; the upper surface of the device base is provided with a support mounting hole, the lower end of the cylindrical support seat is fitted into the support mounting hole, and the upper end of the cylindrical support seat extends vertically upward.

[0007] The lower end of the cylindrical support base is threadedly connected to the support mounting hole; the lower lead screw stop is vertically arranged on the top surface of the cylindrical support base and symmetrically distributed on both sides of the axis of the lead screw to be supported.

[0008] Furthermore, it also includes four casters; the four casters are evenly arranged at the bottom of the device base.

[0009] Furthermore, an auxiliary mounting hole is provided on the upper side of the cylindrical support; the auxiliary mounting hole is arranged radially along the cylindrical support, and an auxiliary push rod is detachably installed in the auxiliary mounting hole; wherein, the auxiliary push rod is used to drive the cylindrical support to rotate downward or upward in the support mounting hole.

[0010] Furthermore, it also includes an upper support mechanism; the upper support mechanism is detachably mounted on the device base and positioned above the top surface of the cylindrical support base; wherein, the upper support mechanism is used to provide auxiliary support for the lead screw to be supported, which is arranged in upper and lower layers.

[0011] Furthermore, the upper support mechanism includes four support columns, four support sleeves, and an upper support platform;

[0012] The four support columns are vertically arranged at the top of the device base and are evenly distributed around the upper end of the cylindrical support seat; the four support sleeves are all vertically arranged and are correspondingly inserted into the top of the four support columns; the upper support platform is horizontally arranged at the top of the four support sleeves, and the lead screw to be supported in the upper layer is horizontally placed on the top surface of the upper support platform.

[0013] Furthermore, the lower end of the support column is fixedly connected to the device base; the lower end of the support sleeve is provided with a vertical mounting hole, and the upper end of the support column is concentrically inserted into the vertical mounting hole.

[0014] Furthermore, the upper support platform includes a support plate, a fixed sleeve, three detachable sleeves, and an upper lead screw stop;

[0015] The support plate is a horizontal plate structure. The upper lead screw stop is vertically arranged on the top surface of the support plate and symmetrically distributed on both sides of the axis of the lead screw to be supported in the upper layer. One fixed sleeve and three detachable sleeves are vertically arranged at the four corners of the support plate. The top end of one fixed sleeve is fixedly connected to the bottom surface of the support plate, and the bottom end of one fixed sleeve is detachably connected to the top end of the support sleeve. The top ends of the three detachable sleeves are in contact with the bottom surface of the support plate, and the bottom ends of the three detachable sleeves are detachably connected to the top end of the support sleeve.

[0016] Furthermore, the top ends of the fixed sleeve and the detachable sleeve are located on the same horizontal plane and are flush with the bottom surface of the support plate.

[0017] Furthermore, the fixed sleeve and the supporting sleeve, as well as the detachable sleeve and the supporting sleeve, are all connected by threads.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] The lead screw support device provided by this utility model utilizes the top surface of the cylindrical support base as a support plane to achieve horizontal support for the lead screw. During the installation process, only the top surface of the cylindrical support base needs to be placed on the lead screw, without the need for manual support, which effectively improves the installation efficiency of the lead screw. Secondly, the cylindrical support base and the support mounting hole on the device base are connected by threads, which allows for free adjustment of the height of the cylindrical support base to support lead screws at different installation heights, thus improving the applicability of the device. In addition, by setting a lower lead screw stop, the lead screw is prevented from rolling on the cylindrical support base, ensuring the safety of the test process. Attached Figure Description

[0020] Figure 1 This is an exploded view of the lead screw support device described in this utility model;

[0021] Figure 2 This is a schematic diagram showing the usage state of the lead screw support device described in this utility model.

[0022] The components include: 1. Device base; 2. Cylindrical support seat; 3. Lower lead screw stop; 4. Support column; 5. Support sleeve; 6. Upper support platform; 7. Casters; 8. Lower lead screw to be supported; 9. Upper lead screw to be supported; 201. Mounting through hole; 601. Support plate; 602. Fixed sleeve; 603. Removable sleeve; 604. Upper lead screw stop; 605. Rotary handle. Detailed Implementation

[0023] To make the technical problem solved by this utility model, the technical solution, and the beneficial effects clearer, the following specific embodiments provide a further detailed description of this utility model. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it.

[0024] In this utility model, the process of supporting a lead screw with upper and lower layers is taken as an example; as shown in the appendix. Figure 1-2 As shown, this utility model provides a lead screw support device, including a device base 1, a cylindrical support seat 2, a lower lead screw stop 3, an upper support mechanism, four universal wheels 7, and an auxiliary push rod.

[0025] The device base 1 has a rectangular parallelepiped structure, and a support mounting hole is provided on the upper surface of the device base 1. The upper end of the support mounting hole is connected to the upper surface of the device base 1, and the lower end of the support mounting hole extends toward the lower surface of the device base 1. The cylindrical support 2 has a cylindrical structure and is vertically disposed in the support mounting hole. The lower end of the cylindrical support 2 is fitted into the support mounting hole, and the upper end of the cylindrical support 2 extends vertically upward. Preferably, the lower end of the cylindrical support 2 is threadedly connected to the support mounting hole. Specifically, the inner wall of the support mounting hole is provided with an internal thread, and the lower end of the cylindrical support 2 is provided with an external thread, and the internal thread and the external thread are connected in a mating manner.

[0026] An auxiliary mounting hole is provided on the upper side of the cylindrical support 2. The auxiliary mounting hole is arranged along the radial length of the cylindrical support 2. The auxiliary push rod is detachably inserted into the auxiliary mounting hole. By driving the auxiliary push rod, the cylindrical support 2 can be rotated around its axis, so that the cylindrical support 2 can be screwed in downward or upward in the support mounting hole, thereby adjusting the height of the top surface of the cylindrical support 2 and thus supporting the lower lead screw 8 to be supported at different installation heights.

[0027] The top surface of the cylindrical support 2 is adapted to the installation height of the lower lead screw 8 to be supported. The lower lead screw 8 to be supported is placed horizontally on the top surface of the cylindrical support 2. The lower lead screw stop 3 is vertically arranged on the top surface of the cylindrical support 2 and symmetrically distributed on both sides of the axis of the lower lead screw 8 to be supported. There are at least two lower lead screw stops 3, which are respectively arranged on both sides of the lower lead screw 8 to be supported, so as to limit the lower lead screw 8 to be supported in the horizontal direction and prevent the lower lead screw 8 to be supported from rolling horizontally.

[0028] The upper support mechanism is detachably mounted on the device base 1 and positioned above the top surface of the cylindrical support seat 2; wherein, the upper support mechanism is used to provide auxiliary support for the upper lead screw 9 to be supported; specifically, the upper support mechanism includes four support columns 4, four support sleeves 5 and an upper support platform 6.

[0029] Four support columns 4 are vertically arranged at the top of the device base 1 and evenly distributed around the upper end of the cylindrical support 2; four support sleeves 5 are also vertically arranged and correspondingly inserted into the top ends of the four support columns 4; wherein, the lower end of the support column 4 is fixedly connected to the top end of the device base 1, and the lower end of the support sleeve 5 is provided with a vertical mounting hole; the lower end of the vertical mounting hole is through the lower end face of the support sleeve 5, and the upper end of the vertical mounting hole extends along the axis of the support sleeve 5 and toward the upper end of the support sleeve 5; the upper end of the support column 4 is concentrically inserted into the vertical mounting hole, and the support column 4 and the vertical mounting hole are smoothly connected, realizing a detachable connection between the support column 4 and the support sleeve 5.

[0030] The upper support platform 6 is horizontally positioned at the top of the four support sleeves 5, and the upper lead screw to be supported is horizontally placed on the top surface of the upper support platform 6; specifically, the upper support platform 6 includes a support plate 601, a fixed sleeve 602, three detachable sleeves 603, and an upper lead screw stop 604.

[0031] The support plate 601 is a horizontal plate structure. The upper surface of the support plate 601 is adapted to the installation height of the upper lead screw 9 to be supported. The upper lead screw 9 to be supported is placed horizontally on the upper surface of the support plate 601. One fixed sleeve 602 and three detachable sleeves 603 are vertically arranged between the support plate 601 and the support sleeve 5. Among them, one fixed sleeve 602 and three detachable sleeves 603 are vertically arranged at the four corners of the support plate 601.

[0032] Specifically, the top end of one fixed sleeve 602 is fixedly connected to the bottom surface of the support plate 601, and the bottom end of another fixed sleeve 602 is detachably connected to the top end of the support sleeve 5; wherein, the bottom end of the fixed sleeve 602 and the top end of the support sleeve 5 are connected by threads; the top ends of three detachable sleeves 603 are in contact with the bottom surface of the support plate 601, and the bottom ends of the three detachable sleeves 603 are detachably connected to the top end of the support sleeve 5; wherein, the detachable sleeves 603 and the support sleeve 5 are all connected by threads; by connecting the fixed sleeves 602 and the detachable sleeves 603 to the support sleeve 5 by threads, the installation height of the support plate 601 can be adjusted by adjusting the fitting length between the fixed sleeves 602 or the detachable sleeves 603 and the support sleeve 5, thereby satisfying the support of the upper lead screw 9 to be supported at different heights.

[0033] It should be noted that the top ends of the fixed sleeve 602 and the detachable sleeve 603 are located on the same horizontal plane and are flush with the bottom surface of the support plate 601, ensuring the levelness of the support plate 601 and thus ensuring the installation accuracy of the upper lead screw 9 to be supported, improving the accuracy of the test. Secondly, by contacting the top surface of the detachable sleeve 603 with the bottom surface of the support plate 601 and fixing the top end of the fixed sleeve 602 to the bottom surface of the support plate 601, the installation of the support plate 601 can be facilitated, and interference from the upper support mechanism when supporting the lower lead screw 8 to be supported can be avoided.

[0034] The upper lead screw stop 604 is vertically arranged on the top surface of the support plate 601 and symmetrically distributed on both sides of the axis of the upper lead screw 9 to be supported; wherein, there are at least two upper lead screw stops 604, which are respectively arranged on both sides of the upper lead screw 9 to be supported, so as to limit the upper lead screw 9 to be supported in the horizontal direction by means of the upper lead screw stops 604, and prevent the upper lead screw 9 to be supported from rolling horizontally.

[0035] The rotating handle 605 is vertically disposed at the corner of the upper surface of the support plate 601 and is located on the same side of the support plate 601 as the fixing sleeve 602; wherein the fixing sleeve 602 and the rotating handle 605 are respectively located at two different corners on the same side of the support plate 601; the rotating handle 605 serves as a handle for driving the support plate 601 to rotate, which facilitates the installation of the upper support mechanism.

[0036] Four casters 7 are evenly arranged at the bottom of the device base 1. Each caster 7 is equipped with a brake pedal to lock the caster 7 and prevent the screw support device from moving freely. By setting the casters 7, the screw support device can be moved easily, reducing the difficulty of moving the device.

[0037] Working principle:

[0038] When using the lead screw support device described in this utility model, two lead screw support devices are combined and placed at both ends of the lead screw to be supported, so as to achieve the function of jointly supporting the lead screw.

[0039] (1) For the process of supporting the lower lead screw:

[0040] First, the device base 1 is moved to a preset position using the casters 7. Then, the brake pedal on the casters 7 is pressed to lock the casters 7, thus fixing the device base 1 in the preset position. Next, the lower end of the cylindrical support 2 is fitted into the support mounting hole, and the auxiliary push rod is inserted into the auxiliary mounting hole to drive the cylindrical support 2 to rotate to a preset height. After that, the lower lead screw 8 to be supported is placed on the top surface of the cylindrical support 2 and positioned between the lower lead screw stops 3, and then the subsequent lead screw tightening operation begins.

[0041] (2) Regarding the process of supporting the upper lead screw:

[0042] Four support sleeves 5 are respectively inserted into four support columns 4; then, three detachable sleeves 603 are connected to three of the support columns 4 by threaded connection; next, the fixed sleeve 602 with support plate 601 is connected to the remaining support column 4 by thread, and the top of the three detachable sleeves 603 is in contact with the bottom surface of the support plate 601; finally, the four upper support sleeves 9 are placed on the top surface of the support platform 601 and placed between the upper screw stop blocks 604, and then the subsequent screw tightening operation begins.

[0043] In this invention, the cylindrical support 2 is connected to the device base 1 by a threaded connection, and the support sleeve 4 is connected to the fixed sleeve 602 or the detachable sleeve 603 by a threaded connection, so that the height of the screw support can be adjusted as needed. For easy movement, the device is equipped with casters with brake pedals, so that it can be easily operated when it needs to be moved. The design of the brake pedal ensures that the device can be stably stopped in the designated position when it needs to be fixed. The device has a simple structure and is easy to operate, realizing a simple, efficient and stable process of installing the screw in a narrow space, effectively improving the efficiency of indoor civil engineering tests and ensuring the reliability of test results.

[0044] In this invention, the use of a matching lead screw support device makes the lead screw installation process simpler and more efficient, greatly reducing the complexity of lead screw installation and improving work efficiency. The device has a simple structure and is suitable for lead screw support in limited spaces, making it easier and more convenient to install lead screws in narrow spaces. Secondly, by setting a cylindrical support base and an upper support mechanism, it is not only suitable for the installation of a single row of lead screws, but also considers the situation where two layers of lead screws may need to be installed. By introducing an upper support mechanism, which is detachably connected to the device base, and setting a threaded support structure in the upper support mechanism, it provides additional lead screw support while ensuring more flexible installation, meeting the needs of supporting lead screws at different installation heights, thus improving the applicability and practicality of the device.

[0045] The above embodiments are merely one of the implementation methods to achieve the technical solution of this utility model. The scope of protection claimed by this utility model is not limited to this embodiment, but also includes any variations, substitutions and other implementation methods that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this utility model.

Claims

1. A lead screw support apparatus, characterized by, The device includes a base (1), a cylindrical support (2), and a lower lead screw stop (3). The upper surface of the base (1) is provided with a support mounting hole. The lower end of the cylindrical support (2) is fitted into the support mounting hole, and the upper end of the cylindrical support (2) extends vertically upward. The lower end of the cylindrical support (2) is threadedly connected to the support mounting hole. The lower lead screw stop (3) is vertically arranged on the top surface of the cylindrical support (2) and symmetrically distributed on both sides of the axis of the lead screw to be supported.

2. The lead screw support apparatus according to claim 1, characterized by It also includes four casters (7); the four casters (7) are evenly arranged at the bottom of the device base (1).

3. The lead screw support apparatus of claim 1, wherein An auxiliary mounting hole is provided on the upper side of the cylindrical support (2); the auxiliary mounting hole is arranged radially along the cylindrical support (2), and an auxiliary push rod is detachably provided in the auxiliary mounting hole; wherein, the auxiliary push rod is used to drive the cylindrical support (2) to rotate downward or upward in the support mounting hole.

4. The lead screw support apparatus of claim 1, wherein It also includes an upper support mechanism; the upper support mechanism is detachably mounted on the device base (1) and placed above the top surface of the cylindrical support base (2); wherein, the upper support mechanism is used to provide auxiliary support for the lead screw to be supported, which is arranged in upper and lower layers and located on the upper layer.

5. The lead screw support apparatus of claim 4, wherein, The upper support mechanism includes four support columns (4), four support sleeves (5), and an upper support platform (6); The four support columns (4) are vertically arranged at the top of the device base (1) and evenly distributed around the upper end of the cylindrical support seat (2); the four support sleeves (5) are all vertically arranged and correspondingly inserted into the top of the four support columns (4); the upper support platform (6) is horizontally arranged at the top of the four support sleeves (5), and the lead screw to be supported on the upper layer is horizontally placed on the top surface of the upper support platform (6).

6. The lead screw support apparatus of claim 5, wherein, The lower end of the support column (4) is fixedly connected to the device base (1); the lower end of the support sleeve (5) is provided with a vertical mounting hole, and the upper end of the support column (4) is concentrically inserted into the vertical mounting hole.

7. The lead screw support apparatus of claim 5, wherein The upper support platform (6) includes a support plate (601), a fixed sleeve (602), three detachable sleeves (603) and an upper lead screw stop (604); The support plate (601) is a horizontal plate structure. The upper lead screw stop (604) is vertically arranged on the top surface of the support plate (601) and symmetrically distributed on both sides of the axis of the lead screw to be supported in the upper layer. One fixed sleeve (602) and three detachable sleeves (603) are vertically arranged at the four corners of the support plate (601). The top end of one fixed sleeve (602) is fixedly connected to the bottom surface of the support plate (601), and the bottom end of one fixed sleeve (602) is detachably connected to the top end of the support sleeve (5). The top ends of the three detachable sleeves (603) are in contact with the bottom surface of the support plate (601), and the bottom ends of the three detachable sleeves (603) are detachably connected to the top end of the support sleeve (5).

8. The lead screw support apparatus of claim 7, wherein, The top ends of the fixed sleeve (602) and the detachable sleeve (603) are located on the same horizontal plane and are flush with the bottom surface of the support plate (601).

9. The lead screw support apparatus of claim 7, wherein, The fixed sleeve (602) and the supporting sleeve (5) are connected by threads, as are the detachable sleeve (603) and the supporting sleeve (5).

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