Screwing device
By designing a tightening device with a rotatable tightening head and a copper rotating sleeve, the problems of low efficiency, high cost, and safety hazards in the thread tightening of small pyrotechnic items have been solved, achieving an efficient, safe, and precise tightening process.
Patent Information
- Application Number
- CN202520320420.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-26
AI Technical Summary
The thread tightening operation of small explosive components suffers from low production efficiency and high costs, and also poses safety hazards.
A tightening device comprising a base, a bracket, a tightening head, and a positioning block was designed. It employs a rotatable tightening head and a copper rotating sleeve, and is equipped with a locking pin and a limiting ring. The tightening head is driven to rotate by a crank handle, achieving precise positioning and preventing the generation of sparks and static electricity.
It significantly improves production efficiency, reduces costs, enhances operational safety, improves tightening quality and connection strength, and avoids damage caused by improper operation.
Smart Images
Figure CN223790301U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pyrotechnic production equipment technology, specifically to a tightening device. Background Technology
[0002] In the field of pyrotechnics production, safety is of paramount importance, and strict adherence to the relevant regulations of the "Technical Management of Safety in Pyrotechnics Production" is essential. Traditional manual tightening methods for small parts have numerous drawbacks. Firstly, manual operation is not only labor-intensive and time-consuming, but also extremely inefficient. Secondly, the precision of manual operation is difficult to guarantee, and sparks or static electricity can easily be generated during the process, posing significant safety hazards and compromising production safety.
[0003] To improve production efficiency, some companies choose to purchase custom-designed automated equipment. However, while such equipment can increase production speed to some extent, it is expensive, and subsequent maintenance and operating costs remain high. This undoubtedly increases the company's production costs and limits its widespread application in companies with limited budgets. Utility Model Content
[0004] In view of the above, this utility model provides a tightening device to solve the problems of low production efficiency and high cost in the existing thread tightening operation of small pyrotechnic items.
[0005] The technical solution of this utility model:
[0006] This utility model provides a tightening device, including a base, a bracket, a tightening head, and a positioning block; the bracket is installed on the base; the tightening head is rotatably installed on the bracket and perpendicular to the upper surface of the base; the positioning block is installed on the base and located below the tightening head, used to position the workpiece to be installed, and the tightening head abuts against two threaded workpieces, and rotating the tightening head can drive the upper threaded workpiece to be tightened onto the lower threaded workpiece.
[0007] Furthermore, it also includes a rotating sleeve, on which the bracket has an installation hole, the rotating sleeve is installed in the installation hole of the bracket, and the tightening head is rotatably installed in the rotating sleeve.
[0008] Furthermore, the rotating sleeve is a copper sleeve, and the tightening head is made of copper to prevent sparks and static electricity from being generated during rotation.
[0009] Furthermore, the tightening head includes a rotating shaft rotatably mounted inside a rotating sleeve and a retaining pin mounted at the bottom end of the rotating shaft for abutting the threaded workpiece.
[0010] Furthermore, there are two or more locking pins, and the position of each locking pin can be adjusted radially along the rotation axis to accommodate threaded workpieces of different specifications.
[0011] Furthermore, the tightening head also includes a limiting ring fixed at the middle position of the rotating shaft. The limiting ring is located on the rotating sleeve and is used to support the rotating shaft and limit its travel.
[0012] Furthermore, it also includes a crank handle, and a connection hole is provided at the top of the tightening head. The crank handle is installed in the connection hole of the tightening head for manually rotating the tightening head.
[0013] Furthermore, the bracket includes a shim block mounted on the base and a support plate horizontally mounted on the shim block, a rotating sleeve mounted on the support plate, and a tightening head rotatably mounted on the rotating sleeve.
[0014] Furthermore, the support plate is horizontally adjustable and mounted on the shim block; the support plate has an adjustment hole, the shim block has a screw hole, and the bracket also includes an adjustment bolt, which passes through the adjustment hole and is screwed into the screw hole of the shim block to adjust the working position of the tightening head.
[0015] Furthermore, the positioning block has a positioning groove adapted to the threaded workpiece, and the threaded workpiece is positioned by pressing against the positioning groove.
[0016] The tightening device provided by this utility model has significant advantages over existing methods for tightening threads on small pyrotechnic items, as detailed below:
[0017] I. Significantly Improved Production Efficiency: This device, with its rotatable tightening head, can quickly and accurately tighten the threaded workpiece above onto the threaded workpiece below. This design greatly simplifies the tightening process, reduces the complexity and time-consuming nature of manual operation, and thus significantly improves production efficiency.
[0018] II. Cost Reduction: Traditional thread tightening operations for small pyrotechnic components often require expensive specialized tools or equipment, and are complex to operate and have high maintenance costs. The tightening device provided by this invention has a simple structure, is easy to operate and maintain, and significantly reduces costs. At the same time, the increased production efficiency also indirectly reduces the unit production cost.
[0019] III. Enhanced Operational Safety: Tightening small pyrotechnic components poses certain safety risks. This device, through its precise positioning block design and stable tightening head rotation mechanism, ensures the accuracy and stability of the tightening operation, thereby reducing safety risks during the process.
[0020] IV. Improved Tightening Quality: The rotatable design and precise positioning function of the tightening head make tightening operations more refined and accurate. This not only avoids damage or degradation of threads or workpiece performance caused by improper tightening, but also improves the connection strength after tightening.
[0021] In summary, the tightening device provided by this utility model has shown significant benefits in improving production efficiency, reducing costs, enhancing operational safety, and improving quality. It is of great significance for solving the problems existing in the current thread tightening operation of small pyrotechnic items.
[0022] The preferred embodiments of this utility model and their beneficial effects will be further described in detail in conjunction with specific implementation methods. Attached Figure Description
[0023] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but should not be construed as limiting the present invention. In the drawings:
[0024] Figure 1 This is a perspective view of the tightening device of this utility model;
[0025] Figure 2 This is a front view of the tightening device of this utility model;
[0026] Figure 3 This is a perspective view showing the tightening device of this utility model in use.
[0027] Figure 4 The front view shows the tightening device of this utility model in use.
[0028] The following are the reference numerals: 1. Base; 2. Bracket; 21. Elevating block; 22. Support plate; 23. Adjusting bolt; 221. Adjusting hole; 3. Tightening head; 31. Rotating shaft; 32. Locking post; 33. Limiting ring; 4. Positioning block; 41. Positioning groove; 5. Rotating sleeve; 6. Handle. Detailed Implementation
[0029] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.
[0030] Please see Figures 1 to 4 This utility model provides a tightening device, including a base 1, a bracket 2, a tightening head 3, and a positioning block 4. The bracket 2 is mounted on the base 1. The tightening head 3 is rotatably mounted on the bracket 2 and perpendicular to the upper surface of the base 1. The positioning block 4 is mounted on the base 1 and located below the tightening head 3 for positioning the workpiece to be installed. By pressing the tightening head 3 against two threaded workpieces, rotating the tightening head 3 causes the upper threaded workpiece to tighten onto the lower threaded workpiece.
[0031] The working principle and usage process of this utility model: After the user puts the threads of the two threaded workpieces that need to be tightened together, they are pressed against the positioning block 4. Then, the tightening head 3 is rotated so that the tightening head 3 clamps the threaded workpiece and tightens it onto the other threaded workpiece.
[0032] The tightening device provided by this utility model has significant advantages over existing methods for tightening threads on small pyrotechnic items, as detailed below:
[0033] I. Significantly Improved Production Efficiency: This device, with its rotatable tightening head, can quickly and accurately tighten the threaded workpiece above onto the threaded workpiece below. This design greatly simplifies the tightening process, reduces the complexity and time-consuming nature of manual operation, and thus significantly improves production efficiency.
[0034] II. Cost Reduction: Traditional thread tightening operations for small pyrotechnic components often require expensive specialized tools or equipment, and are complex to operate and have high maintenance costs. The tightening device provided by this invention has a simple structure, is easy to operate and maintain, and significantly reduces costs. At the same time, the increased production efficiency also indirectly reduces the unit production cost.
[0035] III. Enhanced Operational Safety: Tightening small pyrotechnic components poses certain safety risks. This device, through its precise positioning block design and stable tightening head rotation mechanism, ensures the accuracy and stability of the tightening operation, thereby reducing safety risks during the process.
[0036] IV. Improved Tightening Quality: The rotatable design and precise positioning function of the tightening head make tightening operations more refined and accurate. This not only avoids damage or degradation of threads or workpiece performance caused by improper tightening, but also improves the connection strength after tightening.
[0037] In summary, the tightening device provided by this utility model has shown significant benefits in improving production efficiency, reducing costs, enhancing operational safety, and improving quality. It is of great significance for solving the problems existing in the current thread tightening operation of small pyrotechnic items.
[0038] The tightening device provided by this utility model includes a rotating sleeve 5, a bracket 2 with a mounting hole, and the rotating sleeve 5 installed in the mounting hole of the bracket 2. The tightening head 3 is rotatably installed in the rotating sleeve 5. By introducing the innovative design of the rotating sleeve 5 and installing it in the mounting hole of the bracket 2, and then rotatably installing the tightening head 3 in the rotating sleeve 5, this structural innovation makes the rotation of the tightening head 3 more flexible and stable. Users can easily adjust the angle and position of the tightening head according to actual needs, thereby improving the efficiency and accuracy of tightening operations.
[0039] The rotating sleeve 5 is made of copper, and the tightening head 3 is also made of copper. During rotation, it can effectively prevent the generation of sparks and static electricity, thus improving the safety of use.
[0040] The tightening head 3 includes a rotating shaft 31 rotatably mounted within the rotating sleeve 5 and a retaining pin 32 mounted at the bottom of the rotating shaft 31 for clamping the threaded workpiece. The presence of the retaining pin 32 makes it easier for the operator to observe and judge the fit between the tightening head 3 and the threaded workpiece during operation. By observing the contact state between the retaining pin 32 and the threaded workpiece, the operator can quickly determine whether the tightening head 3 is correctly installed on the threaded workpiece and whether it is properly clamped, thereby making timely adjustments, reducing operational errors, and improving work efficiency.
[0041] There are two or more locking pins 32, and the position of each locking pin 32 can be adjusted radially along the rotation axis 31 to accommodate threaded workpieces of different specifications.
[0042] The tightening head 3 includes a limiting ring 33 fixed at the middle position of the rotating shaft 31, and the limiting ring 33 is located on the rotating sleeve 5. This allows the rotating shaft 31 to be supported on the rotating sleeve 5 and also limits the stroke of the rotating shaft 31.
[0043] The tightening device provided by this utility model includes a crank handle 6 and a connecting hole at the top of the tightening head 3. The crank handle 6 is installed in the connecting hole of the tightening head 3. This facilitates manual rotation of the tightening head 3.
[0044] The bracket 2 includes a raised block 21 mounted on the base 1 and a support plate 22 horizontally mounted on the raised block 21. A rotating sleeve 5 is mounted on the support plate 22, and a tightening head 3 is rotatably mounted on the rotating sleeve 5. The support plate 22 is horizontally adjustable and mounted on the raised block 2. Specifically, the support plate 22 has an adjustment hole 221, the raised block 21 has a screw hole, and the bracket 2 includes an adjusting bolt 23, which passes through the adjustment hole 221 and is screwed into the screw hole of the raised block 21. This facilitates the adjustment of the working position of the tightening head 3.
[0045] The positioning block 4 has a positioning groove 41 that is adapted to the threaded workpiece, and the threaded workpiece is positioned by pressing against the positioning groove 41.
[0046] The base 1 can be a flat plate, providing a working surface.
[0047] After the user places the threads of the two threaded workpieces that need to be tightened together, they are pressed against the positioning block 4. Then, the user drives the tightening head 3 to rotate by the crank handle 6, so that the locking pin 32 at the bottom of the tightening head 3 clamps the threaded workpiece and tightens it onto the other threaded workpiece.
[0048] In the description of this utility model, it should be noted that the terms "upper" and "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying importance; the words "bottom surface" and "top surface," "inner" and "outer" respectively refer to the geometric direction toward or away from a specific component.
[0049] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0050] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A screwing device, characterized in that It includes base (1), support (2), screw head (3) and positioning block (4), the support (2) is installed on the base (1), the screw head (3) is rotatably installed on the support (2), and is perpendicular to the upper surface of the base (1), the positioning block (4) is installed on the base (1) and is located below the screw head (3), for positioning the workpiece to be installed, by screwing the screw head (3) against two threaded workpieces, rotating the screw head (3) can drive the threaded workpiece above to be screwed onto the threaded workpiece below.
2. A screwing device according to claim 1, characterized in that It also includes rotating sleeve (5), the support (2) is provided with mounting hole, the rotating sleeve (5) is installed in the mounting hole of the support (2), and the screw head (3) is rotatably installed in the rotating sleeve (5).
3. A screwing device according to claim 2, characterized in that The rotating sleeve (5) is a copper sleeve, and the screw head (3) is made of copper, which is used to prevent sparks and static electricity during rotation.
4. The screwing device according to claim 2, characterized in that The screw head (3) includes rotating shaft (31) rotatably installed in the rotating sleeve (5) and clamping column (32) installed at the bottom end of the rotating shaft (31) for pressing the threaded workpiece.
5. A screwing device according to claim 4, characterized in that The clamping column (32) is two or more, and each clamping column (32) can adjust the position along the radial direction of the rotating shaft (31) to adapt to different specifications of threaded workpieces.
6. The screwing device according to claim 4, characterized in that The screw head (3) further includes a limiting ring (33) fixed to the middle position of the rotating shaft (31), and the limiting ring (33) is located on the rotating sleeve (5) for supporting the rotating shaft (31) and limiting its stroke.
7. The screwing device according to claim 1, characterized in that It also includes a crank (6), the screw head (3) is provided with a connecting hole at the top position, and the crank (6) is installed in the connecting hole of the screw head (3) for manually rotating the screw head (3).
8. The screwing device according to claim 2, characterized in that The support (2) includes a cushion block (21) installed on the base (1) and a supporting plate (22) installed horizontally on the cushion block (21), the rotating sleeve (5) is installed on the supporting plate (22), and the screw head (3) is rotatably installed on the rotating sleeve (5).
9. A screwing device according to claim 8, characterized in that The supporting plate (22) is installed on the cushion block (21) in a horizontally adjustable position, the supporting plate (22) is provided with an adjusting hole (221), the cushion block (21) is provided with a screw hole, and the support (2) further includes an adjusting bolt (23), the adjusting bolt (23) passes through the adjusting hole (221) and is screwed into the screw hole of the cushion block (21), for adjusting the working position of the screw head (3).
10. The screwing device according to claim 1, characterized in that The positioning block (4) is provided with a positioning groove (41) matched with the threaded workpiece, and the threaded workpiece is pressed into the positioning groove (41) to realize positioning.