Rotating device for leather toggling plate
By incorporating an elastic element into the leather stretcher rotation device and utilizing its counter-pushing effect, the problem of existing stretchers requiring multiple human interventions for rotation is solved, enabling easy rotation by a single person or a small number of people, thus reducing labor costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2026-03-10
AI Technical Summary
Existing leather stretchers require multiple people to push them over after attaching sheepskin or cowhide, resulting in a waste of human resources.
Design a rotating device for leather stretchers. By setting an elastic element at the connection between the rotating body and the connecting plate, the stretcher can be flipped over by only one or two workers with a gentle push under the action of the elastic element.
It reduces labor costs, saves human resources, enables single-person or low-person operation of the tensioning plate flipping, and improves operational efficiency.
Smart Images
Figure CN223983660U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of leather stretcher rotation technology, specifically to a rotating device for leather stretchers. Background Technology
[0002] Stretching is a process that uses tools such as nails or clamps to stretch leather and then heats it to shape it, thereby increasing the surface area of the leather and making it flat.
[0003] When sheepskin, cowhide, or other leather is hung on the stretcher, the weight of the stretcher is increased, and multiple people are needed to push it to turn it over. Utility Model Content
[0004] This invention provides a rotating device for leather stretchers, which solves the problem that existing stretchers require multiple people to push them simultaneously to rotate when the weight of the stretcher is increased by hanging sheepskin, cowhide, or other leathers.
[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:
[0006] A rotating device for a leather stretcher includes a rotating body, a connecting plate, a pushing member, and an elastic member. One end of the connecting plate is rotatably connected to the rotating body, and the other end is rotatably connected to the stretcher. One end of the pushing member is rotatably connected to the rotating body, and the other end is fixedly connected to another stretcher frame. The elastic member is disposed at the connection between the rotating body and the connecting plate, and both ends of the elastic member are respectively engaged at the bottom of the connecting plate and one side of the rotating body.
[0007] The beneficial effects of this invention are as follows: an elastic element is provided at the connection between the rotating body and the connecting plate, and the two ends of the elastic element are respectively secured to the bottom of the connecting plate and one side of the rotating body. When the rotating device rotates, the two ends of the elastic element generate a reverse tension or a reverse contraction force on the rotating body and the connecting plate. When the rotating device rotates, the reverse thrust of the elastic element pushes the rotating body and the connecting plate back in the opposite direction. When the tensioning plate needs to be rotated, the reverse thrust of the elastic element acts on the tensioning plate. Under the action of the reverse thrust of the elastic element, the tensioning plate can be flipped by only one or two workers gently pushing it, solving the problem that existing tensioning machines require multiple people to push it simultaneously to flip it. This device reduces labor costs and saves human resources.
[0008] The tensioning machine comprises a tensioning plate support, a tensioning plate frame, tensioning plates, and a drive unit. There are two tensioning plates, arranged sequentially in upper and lower layers, both housed within the tensioning plate frame, which is retractable. Two drive units are located on either side of the tensioning plate frame, with their driving ends acting on the retractable ends to move the upper tensioning plate frame upwards or downwards. In this structure, the drive units are cylinders; both cylinders are activated simultaneously to either raise or lower the upper tensioning plate frame. One end of the rotating device's pushing component moves forward or backward along with the rising or falling of the upper tensioning plate frame, causing the rotating device to rotate in either direction. In this structure, the tensioning plate bracket is located on the outside of the tensioning plate frame, and the tensioning plate bracket has a rotating structure. The rotating structure of the tensioning plate bracket acts on the middle position of the tensioning plate frame. When the tensioning plate bracket is manually pushed to rotate, the tensioning plate bracket drives the tensioning plate frame to rotate, thereby driving the rotating device to rotate.
[0009] Based on the above technical solution, the present invention can be further improved as follows.
[0010] Furthermore, the rotating body has a triangular structure, and the three corners of the rotating body are respectively provided with a first connector, a second connector, and a third connector. One end of the first connector is rotatably connected to the rotating body, and the other end is rotatably connected to one end of the connecting plate. The other end of the connecting plate is rotatably connected to the tension plate through a fourth connector. One end of the second connector is rotatably connected to the rotating body, and the other end is fixedly connected to the tension plate frame. One end of the pusher is rotatably connected to the rotating body through the third connector.
[0011] The beneficial effect of adopting the above-mentioned further solution is that by rotatably connecting the first, second, and third connecting members to the rotating body, the rotating body rotates around the first connecting member with reverse tension or reverse contraction force, driving the pushing member to rotate around the third connecting member, causing the pushing member to move up and down, and pushing the other layer of tension plate to move up and down. Under the action of the elastic member's counter-propulsion effect, it has greater stability. One end of the second connecting member is fixedly welded to the tension plate's support frame, and the other end is rotatably connected to the rotating body. When the rotating body rotates, the connection point between the second connecting member and the tension plate frame is the fixed support point, and the connection point between the rotating body and the second and third connecting members is the rotating part. This allows the rotating body and the connecting plate to rotate in the forward or reverse direction. When the rotating body rotates, it also drives the pushing member to push the other layer of tension plate up and down.
[0012] Furthermore, a through hole is provided at each of the three corners of the rotating body, and one end of the first connector, the second connector, and the third connector respectively passes through the through hole and is rotatably connected to the rotating body.
[0013] The beneficial effect of adopting the above-mentioned further solution is that one end of the first connector, the second connector, and the third connector passes through the through hole and is rotatably connected to the rotating body, making the rotating body rotate more flexibly.
[0014] Furthermore, the elastic element is fitted onto the first connecting element.
[0015] The beneficial effect of adopting the above-mentioned further solution is that by fitting the elastic element onto the first connecting member, the counter-pushing effect of the elastic element can act on the rotating body and the connecting plate, and the counter-pushing effect of the elastic element can act on the stretching plate. This allows the stretching plate to be flipped by only one or two workers pushing it gently, solving the problem that existing stretching machines require multiple people to push it simultaneously to flip it. This device reduces labor costs and saves human resources.
[0016] Furthermore, the elastic element is a snap ring.
[0017] The beneficial effect of adopting the above-mentioned further solution is that by setting the elastic element as a retaining ring, the reverse thrust at both ends of the retaining ring can be used to act on the tensioning frame, so that only one or two workers are needed to gently push the tensioning frame to flip. This device reduces labor costs and saves human resources.
[0018] Furthermore, the elastic element is sleeved between the rotating body and the connecting plate, and the two ends of the elastic element are respectively locked at the bottom of the connecting plate and on one side of the rotating body adjacent to the first connecting element and the third connecting element.
[0019] The beneficial effect of adopting the above-mentioned further solution is that, by fitting the elastic element between the rotating body and the connecting plate, the two extended ends of the elastic element are respectively engaged at the bottom of the connecting plate and on one side of the rotating body adjacent to the first and third connecting parts. When the rotating device rotates, the two ends of the elastic element generate a reverse tension or reverse contraction force on the rotating body and the connecting plate. When the rotating device rotates, the reverse thrust of the elastic element pushes the rotating body and the connecting plate back in the opposite direction. When the tension plate needs to rotate, the reverse thrust of the elastic element acts on the tension plate. Under the action of the reverse thrust of the elastic element, the tension plate can be flipped by only one or two workers gently pushing it. This device reduces labor costs and saves human resources.
[0020] Furthermore, the elastic element is positioned in opposite directions at both ends of the bottom of the connecting plate and one side of the rotating body.
[0021] The beneficial effect of adopting the above-mentioned further solution is that the elastic elements are positioned in opposite directions at the bottom of the connecting plate and at both ends of one side of the rotating body. When the rotating device rotates, the counter-pushing effect of the elastic elements pushes the rotating body and the connecting plate back in the opposite direction. When the tension plate needs to rotate, the counter-pushing effect of the elastic elements acts on the tension plate. Under the action of the counter-pushing effect of the elastic elements, the tension plate can be flipped by only one or two workers gently pushing it. This device reduces labor costs and saves human resources.
[0022] Furthermore, one end of the fourth connector is fixedly welded to the tension plate frame.
[0023] The beneficial effect of adopting the above-mentioned further solution is that by fixing one end of the fourth connecting member to the tensioning plate frame and fixing one end of the second connecting member to the tensioning plate support frame, the fourth connecting member serves as the fixed rotation point of the connecting plate at the fixed connection point of the tensioning plate frame. The fourth connecting member acts as a fixed rotation axis, and together with the second connecting member as the fixed rotation axis of the rotating body, they act on the rotating body and the connecting plate, causing the rotating body and the connecting plate to rotate in opposite directions or in the forward direction about the first connecting member as the axis. This allows the elastic element fitted on the first connecting member to exert a counter-pushing force on the rotating body and the connecting plate, pushing them back in the opposite direction. This provides assistance during rotation, allowing the tensioning plate to be flipped with just one or two workers pushing gently, solving the problem that existing tensioning machines require multiple workers to push simultaneously. This device reduces labor costs and saves human resources.
[0024] Furthermore, the rotating body and the connecting plate rotate in opposite directions or relative to each other around the first connecting member as an axis, and one end of the third connecting member pushes or pulls the other layer of tension plate frame to move up and down.
[0025] The beneficial effect of adopting the above-mentioned further solution is that the rotating body and the connecting plate rotate in opposite directions or in the forward direction around the first connecting member. This causes the pushing force of the elastic element sleeved on the first connecting member to act on the rotating body and the connecting plate, pushing the rotating body and the connecting plate back in the opposite direction. It also drives the pushing member to rotate around the third connecting member, causing the pushing member to move up and down, and pushing the tension plate of the other layer to move up and down. Under the action of the pushing force of the elastic element, the rotating device has assistance during rotation and is more stable. In this application, four rotating devices are provided, two of which are respectively set on the lower tension plate frame, and the other two are respectively set on the upper tension plate frame. In this application, one end of the third connecting member in the lower layer pushes or pulls the tension plate of the upper layer to move up and down, and one end of the third connecting member in the upper layer pushes or pulls the tension plate of the lower layer to move up and down. This device allows the stretching plate to be flipped by only one or two workers with a gentle push when the rotating device is in operation. This solves the problem that existing stretching machines require multiple workers to push the plate simultaneously to flip it. This device reduces labor costs and saves human resources. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the structure of a rotating device for leather stretching boards according to the present invention;
[0027] Figure 2 This is a schematic diagram of the structure of a rotating device for leather stretching applied to a stretching machine according to the present invention;
[0028] Figure 3 for Figure 2 Enlarged structural diagram of section A in the middle;
[0029] Figure 4 This is a schematic diagram of the structure of a rotating device for leather stretching machine in the open state of the stretching plate.
[0030] Figure 5 This is a schematic diagram of the structure in the rotating state of the tension plate.
[0031] The components represented by each number in the attached diagram are listed below: 1. Rotating body; 2. Connecting plate; 3. First connecting member; 4. Second connecting member; 5. Third connecting member; 6. Pushing member; 7. Elastic member; 8. Fourth connecting member; 21. Tensioner bracket; 211. Rotating structure; 22. Tensioner frame; 23. Tensioner; 24. Drive device. Detailed Implementation
[0032] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.
[0033] Example 1
[0034] like Figure 1-5 As shown, a rotating device for a leather stretcher includes a rotating body 1, a connecting plate 2, a pushing member 6, and an elastic member 7. One end of the connecting plate 2 is rotatably connected to the rotating body 1, and the other end is rotatably connected to the stretcher 23. One end of the pushing member 6 is rotatably connected to the rotating body 1, and the other end is fixedly connected to another stretcher frame 22. The elastic member 7 is disposed at the connection between the rotating body 1 and the connecting plate 2, and both ends of the elastic member 7 are respectively engaged at the bottom of the connecting plate 2 and one side of the rotating body 1.
[0035] Specifically, an elastic element 7 is provided at the connection between the rotating body 1 and the connecting plate 2. The two ends of the elastic element 7 are respectively secured to the bottom of the connecting plate 2 and one side of the rotating body 1. When the rotating device rotates, the two ends of the elastic element 7 generate a reverse tension or a reverse contraction force on the rotating body 1 and the connecting plate 2. When the rotating device rotates, the reverse thrust of the elastic element 7 pushes the rotating body 1 and the connecting plate 2 back in the opposite direction. When the tensioning frame 22 needs to rotate, the reverse thrust of the elastic element 7 acts on the tensioning frame 22. Under the action of the reverse thrust of the elastic element 7, the tensioning frame 22 can be flipped over with just one or two workers gently pushing it.
[0036] In this embodiment, as Figure 2 As shown, the tensioning machine structure includes: a tensioning support 21, a tensioning frame 22, tensioning plates 23, and a drive device 24. There are two tensioning plates 23, arranged sequentially in upper and lower layers. Both tensioning plates 23 are housed within the tensioning frame 22, which is located within the tensioning support 21. The tensioning frame 22 is telescopic. There are two drive devices 24, located on opposite sides of the tensioning frame 22. The driving end of each drive device 24 acts on the telescopic end of the tensioning frame 22 to drive the upper tensioning frame 22 to rise or fall. In this embodiment, the drive device 24 is a cylinder. Both cylinders start simultaneously, driving the upper tensioning frame 22 to rise, or lower as the cylinders descend. One end of the pushing member 6 of the rotating device pushes forward or pulls backward as the upper tensioning frame 22 rises or falls. This causes the rotating device to rotate forward or backward as the pushing member 6 pushes or pulls the upper tensioning frame 22. In this embodiment, the tensioning bracket 21 is disposed on the outside of the tensioning frame 22, and the tensioning bracket 21 has a rotating structure 211. The rotating structure 211 of the tensioning bracket 21 acts at the middle position of the tensioning frame 22. When the tensioning bracket 21 is manually pushed to flip, the tensioning bracket 21 drives the tensioning frame 22 to flip, thereby driving the rotating device to rotate.
[0037] like Figure 1-5As shown, the rotating body 1 has a triangular structure. The three corners of the rotating body 1 are respectively provided with a first connector 3, a second connector 4, and a third connector 5. One end of the first connector 3 is rotatably connected to the rotating body 1, and the other end is rotatably connected to one end of the connecting plate 2. The other end of the connecting plate 2 is rotatably connected to the tension plate 23 through the fourth connector 8. One end of the second connector 4 is rotatably connected to the rotating body 1, and the other end is fixedly connected to the tension plate frame 22. One end of the pusher 6 is rotatably connected to the rotating body 1 through the third connector 5.
[0038] One end of the second connector 4 is fixedly welded to the tension plate frame 22, and the other end is rotatably connected to the rotating body 1. When the rotating body 1 rotates, the connection between the second connector 4 and the tension plate frame 22 is used as the fixed support point. The connection between the rotating body 1 and the second connector 4 and the third connector 5 is the rotating part. The rotating body 1 and the connecting plate 2 rotate in the forward or reverse direction. When the rotating body 1 rotates, it causes the rotating body 1 to drive the pusher 6 to move up and down towards the tension plate 23 on the other layer.
[0039] Specifically, the first connector 3, the second connector 4, and the third connector 5 are rotatably connected to the rotating body 1. When the rotating body 1 rotates, it rotates with reverse tension or reverse compression around the first connector 3 as the axis, and drives the pusher 6 to rotate around the third connector 5 as the axis, so that the pusher 6 moves up and down, and pushes the tension plate 23 of the other layer to move up and down.
[0040] like Figure 1-5 As shown, a through hole is provided at each of the three corners of the rotating body 1, and one end of the first connector 3, the second connector 4, and the third connector 5 passes through the through hole and is rotatably connected to the rotating body 1.
[0041] Specifically, one end of the first connector 3, the second connector 4, and the third connector 5 passes through the through hole and is rotatably connected to the rotating body 1, making the rotating body 1 rotate more flexibly.
[0042] like Figure 1-5 As shown, the elastic element 7 is fitted onto the first connecting element 3.
[0043] Specifically, the elastic element 7 is fitted onto the first connecting element 3, so that the counter-pushing effect of the elastic element 7 can act on the rotating body 1 and the connecting plate 2, and the counter-pushing effect of the elastic element 7 can act on the tensioning frame 22. This allows the tensioning frame 22 to be flipped by only one or two workers pushing it gently, solving the problem that existing tensioning machines require multiple people to push it simultaneously to flip it. This device reduces labor costs and saves human resources.
[0044] like Figure 1-5As shown, the elastic element 7 is a retaining ring.
[0045] Specifically, by setting the elastic element 7 as a retaining ring, the reverse thrust at both ends of the retaining ring can be used to act on the tensioning frame 22, so that only one or two workers are needed to gently push the tensioning frame 22 to flip. This device reduces labor costs and saves human resources.
[0046] like Figure 1-5 As shown, the elastic element 7 is sleeved between the rotating body 1 and the connecting plate 2. The two ends of the elastic element 7 are respectively locked at the bottom of the connecting plate 2 and on one side of the rotating body 1 adjacent to the first connecting element 3 and the third connecting element 5.
[0047] Specifically, the elastic element 7 is fitted between the rotating body 1 and the connecting plate 2. The two extended ends of the elastic element 7 are respectively engaged at the bottom of the connecting plate 2 and on one side of the rotating body 1 adjacent to the first connecting member 3 and the third connecting member 5. When the rotating device rotates, the two ends of the elastic element 7 create a reverse tension or reverse contraction force on the rotating body 1 and the connecting plate 2. When the rotating device rotates, the reverse thrust of the elastic element 7 pushes the rotating body 1 and the connecting plate 2 back in the opposite direction. When the tensioning frame 22 needs to rotate, the reverse thrust of the elastic element 7 acts on the tensioning frame 22. Under the action of the reverse thrust of the elastic element 7, the tensioning frame 22 can be flipped over with just one or two workers gently pushing it.
[0048] like Figure 1-5 As shown, the elastic element 7 is mounted at the bottom of the connecting plate 2 and at both ends on one side of the rotating body 1 in a reverse configuration.
[0049] Specifically, the elastic element 7 is positioned opposite to both ends of the connecting plate 2 at the bottom and one side of the rotating body 1. When the rotating device rotates, the counter-pushing effect of the elastic element 7 pushes the rotating body 1 and the connecting plate 2 back in the opposite direction. When the tensioning frame 22 needs to rotate, the counter-pushing effect of the elastic element 7 acts on the tensioning frame 22. Under the action of the counter-pushing effect of the elastic element 7, the tensioning frame 22 can be flipped over with just one or two workers gently pushing it.
[0050] like Figure 1-5 As shown, one end of the fourth connector 8 is fixedly welded to the tension plate frame 22.
[0051] Specifically, one end of the fourth connecting member 8 is fixedly welded to the tension plate 23, and one end of the second connecting member 4 is fixedly welded to the tension plate frame 22. This allows the fourth connecting member 8 to serve as the fixed rotation point of the connecting plate 2 at the fixed connection point on the tension plate frame 22. The fourth connecting member 8 acts as a fixed rotation axis, working together with the second connecting member 4 as the fixed rotation axis of the rotating body 1 on the rotating body 1 and the connecting plate 2. This causes the rotating body 1 and the connecting plate 2 to rotate in opposite directions or forward directions around the first connecting member 3. The counter-pushing force of the elastic member 7 fitted on the first connecting member 3 acts on the rotating body 1 and the connecting plate 2, pushing them back in the opposite direction. This provides assistance during rotation, allowing the tension plate frame 22 to be flipped with just one or two workers gently pushing and turning it.
[0052] like Figure 1-5 As shown, the rotating body 1 and the connecting plate 2 rotate in opposite directions or relative to each other about the first connecting member 3 as the axis, and one end of the third connecting member 5 pushes or pulls the other layer of tension plate 23 to move up and down.
[0053] Specifically, the rotating body 1 and the connecting plate 2 rotate in opposite directions or in the forward direction around the first connecting member 3. This causes the elastic member 7, which is sleeved on the first connecting member 3, to exert a counter-pushing effect on the rotating body 1 and the connecting plate 2, pushing them back in the opposite direction. This also drives the pushing member 6 to rotate around the third connecting member 5, causing the pushing member 6 to move up and down, and pushing the tension plate 23 of the other layer to move up and down. In this application, four rotating devices are provided, two of which are respectively installed on the lower tension plate frame 22, and the other two are respectively installed on the upper tension plate frame 22. In this application, one end of the lower third connecting member 5 pushes or pulls the tension plate 23 of the upper layer to move up and down, and one end of the upper third connecting member 5 pushes or pulls the tension plate 23 of the lower layer to move up and down.
[0054] The beneficial effects of this embodiment are as follows: An elastic element 7 is provided at the connection between the rotating body 1 and the connecting plate 2, and the two ends of the elastic element 7 are respectively locked at the bottom of the connecting plate 2 and one side of the rotating body 1. When the rotating device rotates, the two ends of the elastic element 7 form a reverse tension or a reverse contraction force on the rotating body 1 and the connecting plate 2. When the rotating device rotates, the reverse thrust of the elastic element 7 pushes the rotating body 1 and the connecting plate 2 back in the opposite direction. When the tensioning frame 22 needs to rotate, the reverse thrust of the elastic element 7 acts on the tensioning frame 22. Under the action of the reverse thrust of the elastic element 7, the tensioning frame 22 can be flipped by only one or two workers gently pushing it. This solves the problem that existing tensioning machines require multiple people to push it simultaneously to flip it. This device reduces labor costs and saves human resources.
[0055] The working process of this embodiment is as follows: The fourth connecting member 8 serves as the fixed rotation axis of the connecting plate 2, and together with the second connecting member 4, which serves as the fixed rotation axis of the rotating body 1, they act on the rotating body 1 and the connecting plate 2, causing the rotating body 1 and the connecting plate 2 to rotate in opposite directions or in the forward direction about the first connecting member 3. This causes the elastic member 7, which is sleeved on the first connecting member 3, to exert a counter-pushing effect on the rotating body 1 and the connecting plate 2, pushing the rotating body 1 and the connecting plate 2 back in the opposite direction. This also drives the pushing member 6 to rotate about the third connecting member 5, causing the pushing member 6 to move up and down, and pushing the tensioning frame 22 of the other layer to move up and down. This provides assistance when the rotating device rotates, and only one or two workers need to gently push and flip it to flip the tensioning frame 22.
[0056] In this embodiment, the driving device 24 is a cylinder. Two cylinders are activated simultaneously to drive the upper tensioning frame 22 upward, or the upper tensioning frame 22 descends as the cylinder descends. One end of the pushing member 6 of the rotating device pushes or pulls in the opposite direction as the upper tensioning frame 22 rises or falls. This causes the rotating device to rotate in the opposite direction as the pushing member 6 pushes or pulls the upper tensioning frame 22. In this embodiment, the tensioning bracket 21 is located on the outside of the tensioning frame 22, and the tensioning bracket 21 has a rotating structure 211. The rotating structure 211 of the tensioning bracket 21 acts at the middle position of the tensioning frame 22. When the tensioning bracket 21 is manually pushed to flip, the tensioning bracket 21 drives the tensioning frame 22 to flip, thereby driving the rotating device to rotate.
[0057] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0058] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0059] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0060] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0061] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0062] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A rotating device for a leather stretching board, characterized in that, The utility model provides a kind of frame structure of tensioning board, including rotating body (1), connecting plate (2), pusher (6) and elastic piece (7), one end of the connecting plate (2) is rotatably connected to the rotating body (1), the other end is rotatably connected on tensioning board (23), one end of the pusher (6) is rotatably connected to the rotating body (1), the other end is fixedly connected on another layer tensioning board frame (22), the elastic piece (7) is arranged at the connecting place of the rotating body (1) and the connecting plate (2), and the two ends of the elastic piece (7) are respectively clamped in the bottom of the connecting plate (2) and one side of the rotating body (1).
2. A rotating device for a leather stretching board according to claim 1, characterized in that The rotating body (1) is triangular structure, and the three corners of the rotating body (1) are respectively provided with a first connecting piece (3), a second connecting piece (4) and a third connecting piece (5), one end of the first connecting piece (3) is rotatably connected to the rotating body (1), the other end is rotatably connected to one end of the connecting plate (2), the other end of the connecting plate (2) is rotatably connected to the tensioning board (23) through a fourth connecting piece (8), one end of the second connecting piece (4) is rotatably connected to the rotating body (1), and the other end is fixedly connected to the tensioning board frame (22), one end of the pusher (6) is rotatably connected to the rotating body (1) through the third connecting piece (5).
3. A rotating device for a leather stretching board according to claim 2, characterized in that The three corners of the rotating body (1) are respectively provided with a through hole, and one end of the first connecting piece (3), the second connecting piece (4) and the third connecting piece (5) passes through the through hole and is rotatably connected to the rotating body (1).
4. A rotating device for a leather stretching board according to claim 2, characterized in that The elastic piece (7) is sleeved on the first connecting piece (3).
5. A rotating device for a leather stretching board according to claim 4, characterized in that The elastic piece (7) is a clamping spring.
6. A rotating device for a leather stretching board according to claim 4, characterized in that The elastic piece (7) is sleeved between the rotating body (1) and the connecting plate (2), and the two ends of the elastic piece (7) extending out are respectively clamped in the bottom of the connecting plate (2) and one side of the rotating body (1) adjacent to the first connecting piece (3) and the third connecting piece (5).
7. A rotating device for a leather stretching board according to claim 6, characterized in that The two ends of the elastic piece (7) clamped in the bottom of the connecting plate (2) and one side of the rotating body (1) are reversely arranged.
8. A rotating device for a leather stretching board according to claim 2, characterized in that One end of the fourth connecting piece (8) is fixedly welded on the tensioning board frame (22).
9. A rotating device for a leather stretching board according to claim 8, characterized in that The rotating body (1) and the connecting plate (2) are reversely rotatable or relatively rotatable with the first connecting piece (3) as the shaft, and one end of the third connecting piece (5) pushes or pulls another layer tensioning board frame (22) to move up and down.