Fastening structure and adjustable pin shaft
By designing the adjustable pin handle and clamping block in the fastening structure, the adjustment of the pin is realized, which solves the problem in the existing technology that the pin cannot adapt to small-sized workpieces, and ensures the stability and adaptability of the connection.
Patent Information
- Application Number
- CN202420110354.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-16
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-01-16
AI Technical Summary
The existing pins with large lengths cannot be temporarily adapted to workpieces with small widths, resulting in the problem of left and right swing after the workpiece is connected through the pins.
A fastening structure is designed, including an adjustable pin handle and a fastening structure. Through the sliding connection of the adjustable pin handle and the function of the clamping block, the adjustment of the pin is realized to ensure that the pin can adapt to workpieces of different sizes. .
It effectively solves the problem that long-length pins cannot adapt to the connection of small-width workpieces, avoids the workpieces from swinging left and right after connection, and meets the need for long-length pins to adapt to the connection of small-width workpieces.
Smart Images
Figure CN222376919U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of pin shafts, in particular to a fastening structure and an adjustable pin shaft. Background Art
[0002] Pins are a type of standardized fastener that can be used for static fixed connections or for relative movement with the connected parts. They are mainly used at the hinge of two parts to form a hinge connection. Pins are usually locked with a cotter pin, which is reliable and easy to disassemble.
[0003] In the prior art, the pin shaft has a fixed size. When a long pin shaft is used to penetrate a workpiece with a small width, and because the position of the reserved hole of the pin shaft is fixed, after the clamping strip is inserted into the reserved hole, there is a swinging space between the pin shaft and the workpiece, that is, after the workpiece is connected by the pin shaft, there is a problem of left and right swinging.
[0004] Therefore, we need a fastening structure and an adjustable pin to solve the problem that the existing long pin cannot temporarily adapt to the connection of workpieces with small width, so as to meet the requirement of long pin adapting to the connection of workpieces with small width. Utility Model Content
[0005] The purpose of the utility model is to provide a fastening structure and an adjustable pin shaft to solve the problem in the above-mentioned background technology that the existing long pin shaft cannot temporarily adapt to the connection of workpieces with small width, so as to meet the requirement of adapting the long pin shaft to the connection of workpieces with small width.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fastening structure, including an adjustable pin rod handle, the adjustable pin rod handle is sleeved on the pin rod, a reserved hole is provided on the surface of the pin rod, a side groove is provided on the surface of the adjustable pin rod handle, a slot is provided on the surface of the side groove, a clamping block is movably inserted on the surface of the slot, a pressure plate is inserted in the notch at one end of the slot, the pressure plate pushes the clamping block to clamp the pin rod,
[0007] The handle of the brake-adjusting pin rod is on the rod body of the pin rod.
[0008] Preferably, the side groove is a hexagonal ring groove, and the adjustable pin rod handle is a hexagonal ring plate structure with a circular inner ring opening.
[0009] Preferably, the inner ring opening of the adjustable pin handle is provided with an embedding groove, which is an annular groove. There are two groups of embedding grooves, which are symmetrically distributed about the adjustable pin handle. A rubber ring is fixed on the surface of the embedding groove, and the inner ring diameter of the rubber ring is smaller than the inner ring diameter of the adjustable pin handle.
[0010] Preferably, the slot is an "L"-shaped slot, two slots are provided, the two slots are symmetrically distributed about the inner ring opening of the adjustable pin rod handle, a socket is provided on the side wall of the slot, and the clamping block is movably inserted in the socket.
[0011] Preferably, one end of the clamping block facing the inner ring opening of the adjustable pin rod handle is an arc surface, a rubber strip is fixed on the arc surface, and the other end of the clamping block is provided with an inclined surface, which faces upward.
[0012] Preferably, a notch is formed on the surface of the clamping block, an elastic rubber band is fixed on the surface of the notch, and two ends of the elastic rubber band are respectively fixed on two parallel side walls of the insertion hole.
[0013] Preferably, the pressure plate is in an "L"-shaped plate structure, an elastic hanging piece is fixed on the surface of the pressure plate, the elastic hanging piece is in an "L"-shaped plate, a card strip is fixed on the surface of the elastic hanging piece, the card strip is a right-angled trapezoidal strip, the card strip is inserted in the card slot, the card slot is opened on the surface of the side groove, and a pull ring is fixed on the surface of the elastic hanging piece.
[0014] An adjustable pin shaft comprises a fastening structure.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] The fastening structure and adjustable pin shaft proposed by the utility model connect the adjustable pin rod handle to the pin rod in a sliding manner, and the adjustable pin rod handle is braked on the pin rod by pushing the pressure plate to squeeze the clamping block to clamp the pin rod, thereby completing the adjustment of the distance from one end of the pin rod inserted into the workpiece to the adjustable pin rod handle; the problem that the existing pin shaft with a large length cannot be temporarily adapted to the connection of a workpiece with a small width is further solved, and the adaptation of the pin shaft with a large length to the connection of a workpiece with a small width is met. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the structure of the utility model;
[0018] Figure 2 This is a side view of the structure of the utility model;
[0019] Figure 3 for Figure 2 Structural cross-section at AA in the middle;
[0020] Figure 4 for Figure 3 A schematic diagram of the structure enlargement in the middle;
[0021] Figure 5 This is a schematic diagram of the connection structure of the adjustable pin handle and the pressure plate of the utility model;
[0022] Figure 6 This is a schematic diagram of the structure of the adjustable pin handle of the utility model;
[0023] Figure 7 This is a schematic diagram of the structure of the clamping block of the utility model.
[0024] In the figure: pin 1, reserved hole 2, adjustable pin handle 3, side groove 4, embedded groove 5, rubber ring 6, slot 7, jack 8, clamping block 9, notch 10, elastic rubber band 11, pressure plate 12, elastic hanging piece 13, clamping strip 14, clamping groove 15, pull ring 16. DETAILED DESCRIPTION
[0025] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] Embodiment 1
[0027] See also Figure 1-Figure 3 The utility model provides a technical solution: a fastening structure, including an adjustable pin rod handle 3, the adjustable pin rod handle 3 is sleeved on the pin rod 1, and a reserved hole 2 is opened on the surface of the pin rod 1, and a side groove 4 is opened on the surface of the adjustable pin rod handle 3, and a slot 7 is opened on the surface of the side groove 4, and a clamping block 9 is movably inserted on the surface of the slot 7, and a pressure plate 12 is inserted in the notch at one end of the slot 7, and the pressure plate 12 pushes the clamping block 9 to clamp the pin rod 1, which is used to brake the adjustable pin rod handle 3 on the rod body of the pin rod 1; the adjustable pin rod handle 3 is slidably connected to the pin rod 1, and the clamping block 9 is squeezed by pushing the pressure plate 12 to clamp the pin rod 1, so as to achieve the adjustment of the distance from one end of the pin rod inserted into the workpiece to the adjustable pin rod handle 3; it further solves the problem that the existing long pin shaft cannot temporarily adapt to the connection of a small width workpiece, and satisfies the need for a long pin shaft to adapt to the connection of a small width workpiece.
[0028] Embodiment 2
[0029] See attached Figure 5 On the basis of the first embodiment, in order to realize the anti-slip limiting of the adjustable pin handle 3 on the pin 1, the side groove 4 is a hexagonal ring groove, and the adjustable pin handle 3 is a hexagonal ring plate structure with a circular inner ring opening; the inner ring opening of the adjustable pin handle 3 is provided with an embedding groove 5, the embedding groove 5 is an annular groove, and the embedding groove 5 is provided with two groups, and the two groups of embedding grooves 5 are symmetrically distributed about the adjustable pin handle 3, and a rubber ring 6 is fixed on the surface of the embedding groove 5, and the inner ring diameter of the rubber ring 6 is smaller than the inner ring diameter of the adjustable pin handle 3.
[0030] The reason why the embedded groove 5 is added to the surface of the adjustable pin rod handle 3 is that when the adjustable pin rod handle 3 is sleeved on the pin rod 1, the embedded groove 5 is clamped between the pin rod 1 and the adjustable pin rod handle 3 to generate elastic deformation, and the embedded groove 5 increases the friction between the adjustable pin rod handle 3 and the pin rod 1, that is, when there is no external force to pull the adjustable pin rod handle 3 to slide along the pin rod 1, the adjustable pin rod handle 3 will not slide on the pin rod 1 at will.
[0031] Embodiment 3
[0032] Refer to the attached Figure 4 , Figure 6 and Figure 7 On the basis of the second embodiment, in order to realize the braking of the adjustable pin handle 3 on the pin 1, the slot 7 is an "L"-shaped slot, and two slots 7 are provided. The two slots 7 are symmetrically distributed about the inner ring of the adjustable pin handle 3, and a plug hole 8 is provided on the side wall of the slot 7. The clamping block 9 is movably inserted in the plug hole 8; the end of the clamping block 9 facing the inner ring of the adjustable pin handle 3 is an arc surface, and a rubber strip is fixed on the arc surface. The other end of the clamping block 9 is provided with an inclined surface, and the inclined surface faces upward; the surface of the clamping block 9 is provided with a notch 1 0, an elastic rubber band 11 is fixed to the surface of the notch 10, and the two ends of the elastic rubber band 11 are respectively fixed to two parallel side walls of the insertion hole 8; the pressure plate 12 is an "L"-shaped plate structure, and an elastic hanging piece 13 is fixed to the surface of the pressure plate 12, and the elastic hanging piece 13 is an "L"-shaped plate. A card strip 14 is fixed to the surface of the elastic hanging piece 13, and the card strip 14 is a right-angled trapezoidal strip. The card strip 14 is inserted into the card slot 15, and the card slot 15 is opened on the surface of the side groove 4. A pull ring 16 is fixed to the surface of the elastic hanging piece 13.
[0033] When it is necessary to adjust the position of the adjustable pin rod handle 3 on the pin rod 1, pinch the pull ring 16 by hand to tension the elastic hanging piece 13 to deform. After the elastic hanging piece 13 drives the clamping strip 14 to be pulled out from the clamping slot 15, lift the pressure plate 12 to pull it out from the slot 7. When the pressure plate 12 is not pulled out of the slot 7, the clamping block 9 is squeezed by the pressure plate 12. At this time, the elastic rubber band 11 is tensioned to produce elastic deformation. When the pressure plate 12 is pulled out from the slot 7, the elastic rubber band 11 rebounds and pulls the clamping block 9 to move inside the slot 7. The clamping block 9 no longer clamps the pin rod 1. At this time, the adjustable pin rod handle 3 can be moved along the pin rod 1. After the position of the adjustable pin rod handle 3 is determined, the pressure plate 12 is inserted into the slot 7 to enable the clamping block 9 to clamp the pin rod 1 and brake the adjustable pin rod handle 3.
[0034] Embodiment 4
[0035] An adjustable pin shaft comprises a fastening structure.
[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A fastening structure, comprising an adjustable pin handle (3), the adjustable pin handle (3) being sleeved on a pin (1), the surface of the pin (1) being provided with a reserved hole (2), characterized in that: The surface of the adjustable pin rod handle (3) is provided with a side groove (4), the surface of the side groove (4) is provided with a slot (7), the surface of the slot (7) is movably plugged with a clamping block (9), a notch at one end of the slot (7) is plugged with a pressing plate (12), the pressing plate (12) pushes the clamping block (9) to clamp the pin rod (1), and is used to brake the adjustable pin rod handle (3) on the rod body of the pin rod (1).
2. A fastening structure according to claim 1, characterized in that: The side groove (4) is a hexagonal ring groove, and the adjustable pin rod handle (3) is a hexagonal ring plate structure with a circular inner ring opening.
3. A fastening structure according to claim 1, characterized in that: The inner ring opening of the adjustable pin handle (3) is provided with an embedding groove (5), which is an annular groove. The embedding groove (5) is provided with two groups, and the two groups of embedding grooves (5) are symmetrically distributed about the adjustable pin handle (3). A rubber ring (6) is fixed on the surface of the embedding groove (5), and the inner ring diameter of the rubber ring (6) is smaller than the inner ring diameter of the adjustable pin handle (3).
4. A fastening structure according to claim 1, characterized in that: The slot (7) is an "L"-shaped slot, and two slots (7) are provided. The two slots (7) are symmetrically distributed about the inner ring opening of the adjustable pin handle (3). A plug hole (8) is provided on the side wall of the slot (7), and the clamping block (9) is movably plugged into the plug hole (8).
5. A fastening structure according to claim 1, characterized in that: One end of the clamping block (9) facing the inner ring opening of the adjustable pin rod handle (3) is an arc surface, a rubber strip is fixed on the arc surface, and the other end of the clamping block (9) is provided with an inclined surface, which faces upward.
6. A fastening structure according to claim 4, characterized in that: The surface of the clamping block (9) is provided with a notch (10), the surface of the notch (10) is fixed with an elastic rubber band (11), and the two ends of the elastic rubber band (11) are respectively fixed on two parallel side walls of the insertion hole (8).
7. A fastening structure according to claim 1, characterized in that: The pressing plate (12) is in an "L"-shaped plate structure. An elastic hanging piece (13) is fixed on the surface of the pressing plate (12). The elastic hanging piece (13) is in an "L"-shaped plate. A clamping strip (14) is fixed on the surface of the elastic hanging piece (13). The clamping strip (14) is in a right-angle trapezoidal strip. The clamping strip (14) is inserted into a clamping groove (15). The clamping groove (15) is provided on the surface of the side groove (4). A pull ring (16) is fixed on the surface of the elastic hanging piece (13).
8. An adjustable pin, characterized in that: The fastening structure comprises any one of claims 1 to 7.