Lead screw supporting device

Abstract

The utility model discloses a lead screw supporting device which comprises a lead screw sleeve, a supporting rod and a fixing base used for being connected with external equipment, the supporting rod is movably arranged in the lead screw sleeve in a sleeved mode, the fixing base is arranged outside the lead screw sleeve in a sleeved mode and matched with the lead screw sleeve in a threaded mode, a pin is arranged on the supporting rod, and the supporting rod is connected with the fixing base. A clamping groove used for being matched with the pin is formed in the lead screw sleeve. The lead screw supporting device has the advantages of being simple in structure, high in supporting speed and reliable in supporting.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a lead screw support device. Background Technology

[0002] Screw supports are ubiquitous in factories, found on many mobile jigs and flatbed trucks. These seemingly insignificant accessories play a crucial role. However, most screw support devices on the market are threaded, requiring a handle to rotate the thread and raise or lower the support screw. Increasing speed requires either faster hand-cranking or adding a power unit. While these methods allow for quick adjustment of the screw length for rapid ground support, they are limited by the thread pitch during manufacturing. For example, if the thread pitch is designed to be 5mm, one rotation only moves the screw 5mm along its axis. Increasing the number of thread starts increases the lead, affecting the thread's helix angle and reducing friction, compromising safety and making the support unreliable. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a screw support device with simple structure, fast support speed and reliable support.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A lead screw support device includes a lead screw sleeve, a support rod, and a fixed seat for connecting to external equipment. The support rod is movably sleeved inside the lead screw sleeve, and the fixed seat is sleeved outside the lead screw sleeve and threadedly engaged with the lead screw sleeve. The support rod is provided with a pin, and the lead screw sleeve is provided with a groove for engaging with the pin.

[0006] As a further improvement to the above technical solution:

[0007] The slot is J-shaped.

[0008] The slot is provided in two places, and the two slots are arranged symmetrically about the center of the lead screw sleeve.

[0009] The bottom of the support rod is provided with a support base, the support base is provided with a receiving cavity, and the lower end of the support rod is provided with a ball head, which is movably disposed in the receiving cavity.

[0010] The support rod has a stepped portion on its outer periphery, and the bottom of the lead screw sleeve has a magnetic suction component for magnetic connection with the stepped portion.

[0011] The magnetic suction components are provided in multiples at intervals along the circumference of the lead screw sleeve.

[0012] The support rod and the ball head are integrally formed.

[0013] The top of the support rod is also equipped with an operating handle.

[0014] The bottom of the lead screw sleeve is provided with a limiting part for contacting the fixed seat.

[0015] The mounting base is also equipped with standard connection parts for connecting to external devices.

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] 1. The lead screw support device of this utility model, by setting a lead screw sleeve and a support rod, separates the lead screw sleeve and the support rod before the pin falls into the slot, allowing for quick adjustment of the lifting and lowering of the support rod; after the pin falls into the slot, the pin engages with the slot, thus combining the lead screw sleeve and the support rod, allowing the lead screw sleeve and the support rod to rotate together and descend to the ground for support. The structure is simple, the support speed is fast, and there is no need to increase the pitch of the lead screw sleeve, ensuring reliable support.

[0018] 2. The screw support device of this utility model, when the bottom of the support rod is supported on the ground, specifically the support base is supported on the ground, and the ball head moves in coordination with the support base, it can provide stable support even when the ground is uneven, and has strong adaptability.

[0019] 3. The screw support device of this utility model, after the support is completed, rotates the support rod in the opposite direction to make the bottom of the support rod leave the ground and drive the screw sleeve to move upward. Then, the pin is removed from the slot and the support rod is lifted upward so that the stepped part attracts the magnetic part, thus completing the rapid recycling of the support rod. The stepped part can cooperate with the magnetic part to recycle and fix the support rod, and can also limit the upward movement of the support rod to prevent the support rod from being lifted too much and falling out of the screw sleeve. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the screw support device of this utility model.

[0021] Figure 2 This is a cross-sectional view of the lead screw support device of this utility model.

[0022] Figure 3 This is a schematic diagram of the screw sleeve in the screw support device of this utility model.

[0023] Figure 4 This is a front view of the lead screw sleeve in the lead screw support device of this utility model.

[0024] Figure 5 This is a top view of the lead screw sleeve in the lead screw support device of this utility model.

[0025] Figure 6 This is a front view of the support rod in the screw support device of this utility model.

[0026] Legend: 1. Lead screw sleeve; 11. Slot; 12. Limiting part; 2. Support rod; 21. Pin; 22. Operating handle; 23. Support base; 231. Receiving cavity; 24. Ball head; 25. Step part; 3. Fixing seat; 31. Connecting standard part; 41. Magnetic part. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] like Figures 1 to 6 As shown, the lead screw support device of this embodiment includes a lead screw sleeve 1, a support rod 2, and a fixed seat 3 for connecting to external equipment. The support rod 2 is movably sleeved inside the lead screw sleeve 1, and the fixed seat 3 is sleeved outside the lead screw sleeve 1 and threadedly engaged with the lead screw sleeve 1. The support rod 2 is provided with a pin 21, and the lead screw sleeve 1 is provided with a groove 11 for engaging with the pin 21.

[0032] In this embodiment, the screw support device typically uses four screw support devices as a group to support the four corners of the external equipment. In use, the fixed base 3 is connected and fixed to the external equipment that needs to be supported. The support rod 2 is pressed down, and the support rod 2 slides down along the screw sleeve 1, so that the pin 21 falls into the slot 11. Then the support rod 2 is rotated, and the pin 21 drives the screw sleeve 1 to rotate. Since the fixed base 3 is fixed to the external equipment, the screw sleeve 1 and the support rod 2 continue to descend together until the bottom of the support rod 2 contacts the ground, forming support. The lead screw support device in this embodiment, by setting a lead screw sleeve 1 and a support rod 2, separates the lead screw sleeve 1 and the support rod 2 before the pin 21 falls into the slot 11, allowing for quick adjustment of the lifting and lowering of the support rod 2; after the pin 21 falls into the slot 11, the pin 21 engages with the slot 11, thus combining the lead screw sleeve 1 and the support rod 2, so that the lead screw sleeve 1 and the support rod 2 can rotate together and descend to the ground for support. The structure is simple, the support speed is fast, and there is no need to increase the pitch of the lead screw sleeve 1, ensuring reliable support.

[0033] Furthermore, such as Figure 3 and Figure 4 As shown, in this embodiment, the slot 11 is J-shaped. In use, the fixing base 3 is connected and fixed to the external equipment requiring support. The support rod 2 is pressed down, and it slides downward along the lead screw sleeve 1. The pin 21 falls into the slot 11. If the bottom of the support rod 2 is not in contact with the ground at this time, the support rod 2 is rotated so that the pin 21 rotates to the J-point of the J-shaped slot. Then, the support rod 2 continues to move, causing the lead screw sleeve 1 and the support rod 2 to descend, so that the bottom of the support rod 2 contacts the ground, forming support. If the bottom of the support rod 2 contacts the ground at this time, the support rod 2 is rotated in the opposite direction, causing the lead screw sleeve 1 to rise until the pin 21 falls into the bottom of the J-shaped slot. The lead screw sleeve 1 is rotated in the forward direction again, causing the pin 21 to rotate to the J-point of the J-shaped slot. Then, the support rod 2 continues to move, causing the lead screw sleeve 1 and the support rod 2 to descend, so that the bottom of the support rod 2 contacts the ground, forming support. Since the slot 11 is J-shaped, the pin 21 rotates at the J-point position during use, which can limit the support rod 2 and prevent the support rod 2 from moving up and down along the screw sleeve 1 and slipping out of the slot 11 when it rotates, thus ensuring high reliability.

[0034] Furthermore, such as Figure 3 and Figure 5 As shown, in this embodiment, there are two slots 11, which are symmetrically arranged about the center of the lead screw sleeve 1. During use, both ends of the pin 21 can be engaged into the two slots 11 respectively, resulting in more stable rotation and higher reliability.

[0035] Preferably, such as Figure 1 and Figure 6 As shown in this embodiment, the support rod 2 has a through hole, and the pin 21 is inserted into the through hole, which is simple in structure.

[0036] Furthermore, such as Figure 1 and Figure 2 As shown, in this embodiment, the bottom of the support rod 2 is provided with a support base 23, and the lower end of the support rod 2 is provided with a ball head 24. The support base 23 is provided with a receiving cavity 231, and the ball head 24 is movably disposed in the receiving cavity 231. When the bottom of the support rod 2 is supported on the ground, specifically when the support base 23 is supported on the ground, the ball head 24 and the support base 23 are movably engaged, so that the screw support device of this embodiment can stably support the ground even when it is uneven, and has strong adaptability.

[0037] Furthermore, such as Figure 2 As shown, in this embodiment, the outer periphery of the support rod 2 is provided with a stepped portion 25, and the bottom of the lead screw sleeve 1 is provided with a magnetic suction member 41 for magnetically connecting with the stepped portion 25. After the support is completed, the support rod 2 is rotated in the opposite direction to make the bottom of the support rod 2 lift off the ground and drive the lead screw sleeve 1 to move upward. Then, the pin 21 is moved out of the slot 11, and the support rod 2 is lifted upward so that the stepped portion 25 attracts the magnetic suction member 41, thus completing the rapid retrieval of the support rod 2. The stepped portion 25 can cooperate with the magnetic suction member 41 to retrieve and fix the support rod 2, and can also limit the upward movement of the support rod 2 to prevent the support rod 2 from being lifted too much and coming off the lead screw sleeve 1.

[0038] Furthermore, in this embodiment, multiple magnetic suction components 41 are spaced apart along the circumference of the lead screw sleeve 1, so that the magnetic suction component 41 is more firmly connected to the step portion 25 after magnetic attraction.

[0039] Furthermore, in this embodiment, the support rod 2 and the ball head 24 are integrally formed, resulting in good overall integrity.

[0040] Furthermore, such as Figure 1 and Figure 2 As shown in this embodiment, the top of the support rod 2 is also provided with an operating handle 22, which facilitates lifting, pressing and rotating operations of the support rod 2.

[0041] Furthermore, such as Figure 2 As shown, in this embodiment, the bottom of the lead screw sleeve 1 is provided with a limiting part 12 for contacting the fixed seat 3. After the support is completed, the support rod 2 is rotated in the opposite direction, so that the bottom of the support rod 2 is lifted off the ground, and the lead screw sleeve 1 is moved upward until the limiting part 12 contacts the fixed seat 3. The lead screw sleeve 1 can no longer be rotated upward, thus completing the retraction of the lead screw sleeve 1 and preventing the lead screw sleeve 1 from falling off the fixed seat 3.

[0042] Furthermore, such as Figure 1 As shown, in this embodiment, the fixed base 3 is also provided with a connecting standard component 31 for connecting to external devices. Connecting to external devices via the connecting standard component 31 expands the application range of the screw support device in this embodiment.

[0043] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present utility model using the methods and techniques disclosed above, or modify it into equivalent embodiments with equivalent changes, without departing from the spirit and technical solution of the present utility model. Therefore, any simple modifications, equivalent substitutions, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A lead screw support device, characterized in that: It includes a lead screw sleeve (1), a support rod (2), and a fixed seat (3) for connecting to external equipment. The support rod (2) is movably sleeved inside the lead screw sleeve (1), and the fixed seat (3) is sleeved outside the lead screw sleeve (1) and threadedly engaged with the lead screw sleeve (1). The support rod (2) is provided with a pin (21), and the lead screw sleeve (1) is provided with a groove (11) for engaging with the pin (21).

2. The lead screw support device according to claim 1, characterized in that: The slot (11) is J-shaped.

3. The lead screw support device according to claim 1, characterized in that: Two slots (11) are provided, and the two slots (11) are arranged symmetrically about the center of the lead screw sleeve (1).

4. The lead screw support device according to claim 1, characterized in that: The bottom of the support rod (2) is provided with a support base (23), the support base (23) is provided with a receiving cavity (231), the lower end of the support rod (2) is provided with a ball head (24), and the ball head (24) is movably disposed in the receiving cavity (231).

5. The lead screw support device according to claim 1, characterized in that: The support rod (2) has a stepped portion (25) on its outer periphery, and the bottom of the lead screw sleeve (1) is provided with a magnetic suction member (41) for magnetic connection with the stepped portion (25).

6. The lead screw support device according to claim 5, characterized in that: The magnetic suction element (41) is provided in multiple circumferentially spaced along the lead screw sleeve (1).

7. The lead screw support device according to claim 6, characterized in that: The support rod (2) and the ball head (24) are integrally formed.

8. The lead screw support device according to claim 1, characterized in that: The top of the support rod (2) is also provided with an operating handle (22).

9. The lead screw support device according to claim 1, characterized in that: The bottom of the lead screw sleeve (1) is provided with a limiting part (12) for abutting against the fixed seat (3).

10. The lead screw support device according to any one of claims 1 to 9, characterized in that: The mounting base (3) is also provided with a standard connection component (31) for connecting to external equipment.

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