Fastening bolt and lifting clamping piece

Abstract

The utility model relates to the technical field of greenhouse roller shutter accessories, and provides a fastening bolt and a pull-up clamping piece, the pull-up clamping piece is used for being combined with the fastening bolt for use, the pull-up clamping piece comprises a hoop assembly and an installation frame which are connected, the hoop assembly comprises a fixing arm fixedly arranged on the installation frame, and the fixing arm is fixedly connected with the installation frame. The swing arm and the adjusting bolt are arranged on the fixed arm in a swing mode, an opening is formed in the swing arm, one end, penetrating through the opening, of the adjusting bolt is in threaded connection with a nut, and the swing arm is configured to be clamped or loosened after the nut rotates. By means of the technical scheme, the technical problem that in the prior art, a heat preservation quilt folding and unfolding device is not easy, convenient and rapid to install is solved, the clamping piece can be pulled up to be fixed or disassembled on an external installation object by screwing the nut, and operation is very easy, convenient and rapid.

Description

Technical Field

[0001] This utility model relates to the technical field of greenhouse roller shutter accessories, specifically to a fastening bolt and a pull-up clamp. Background Technology

[0002] Greenhouses typically require an insulation blanket on top to increase the thermal resistance between the building and the outside, for example, to prevent heat from being conducted into the room in summer and to prevent heat from being conducted into the outside in winter, thereby maintaining a stable indoor temperature.

[0003] In the existing technology, there is a type of roller shutter that can automatically roll up and down the insulation blanket. Its working principle is to install a swingable telescopic rod on the side of the greenhouse, and install a motor on the telescopic rod. The output end of the motor is connected to a rotating shaft. The rotating shaft rests on the insulation blanket and is connected to one side of the insulation blanket. In this way, the swing trajectory of the telescopic rod corresponds to the arc shape of the greenhouse top. The motor drives the rotating shaft to gradually roll up the insulation blanket covering the greenhouse top.

[0004] However, roller blinds are expensive and require professional personnel to install and disassemble. For some users, a low-cost, easy-to-install thermal blanket retraction device is needed. Utility Model Content

[0005] To overcome the above-mentioned defects, this utility model provides a fastening bolt and a pull-up clamp, which solves the technical problem that the installation of the thermal insulation blanket take-up and take-up device is not simple and quick enough in the related art.

[0006] According to one aspect, at least one embodiment of the present invention provides a fastening bolt comprising a connected head and a shank, the head having a plurality of ratchet teeth spaced apart circumferentially thereon, the shank being used to wind a rope connected to an insulation blanket, the ratchet teeth being used to abut against an external stop pawl to restrict rotation of the shank, the shank being configured to, upon rotation, wind up the rope to pull open the insulation blanket, and to abut against the stop pawl via the ratchet teeth to prevent reverse rotation from releasing the insulation blanket.

[0007] For example, at least one embodiment of this disclosure provides a fastening bolt in which the ratchet has a snapping surface for abutting against the stop pawl to prevent the fastening bolt from rotating in the opposite direction.

[0008] For example, at least one embodiment of this disclosure provides a fastening bolt in which the rod has a radially extending through hole for the end of a rope to pass through and be secured to the rod.

[0009] A pull-up clamp for mounting fastening bolts includes a clamp assembly and a mounting bracket connected together. The clamp assembly includes a fixed arm disposed on the mounting bracket, a swing arm oscillatingly disposed on the fixed arm, and an adjusting bolt. The swing arm has an opening, and a nut is threaded to one end of the adjusting bolt through the opening. The swing arm is configured to clamp or release when the nut is rotated.

[0010] For example, at least one embodiment of this disclosure provides a pull-up clamp in which the fastening bolt is rotatably mounted on the mounting bracket, and the stop pawl is oscillatingly mounted on the mounting bracket via a rotating shaft. A torsion spring is wound on the rotating shaft, with one end of the torsion spring acting on the mounting bracket and the other end acting on the stop pawl to provide a force for the stop pawl to abut against the ratchet.

[0011] For example, at least one embodiment of this disclosure provides a pull-up clamp, wherein the outer peripheral wall of the rod portion also has an annular groove, and a telescopic clamp is movably provided on the mounting bracket, the telescopic clamp being configured to engage in the annular groove after movement to lock the axial position of the fastening bolt.

[0012] For example, at least one embodiment of this disclosure provides a pull-up clip, wherein the mounting frame is further provided with an elastic element, one end of the elastic element acts on the mounting frame and the other end acts on the telescopic clip, for providing a force for the telescopic clip to engage in the annular slot.

[0013] For example, at least one embodiment of this disclosure provides a pull-up clamp in which a plurality of the ratchet teeth are configured to engage with the stop pawl to cause the rod to rotate in one direction.

[0014] For example, at least one embodiment of this disclosure provides a pull-up clip, wherein the elastic element has a plurality of components.

[0015] For example, at least one embodiment of this disclosure provides a pull-up clamp, wherein the nut has an outwardly extending screwing rod portion.

[0016] The beneficial effects of the embodiments of this utility model are as follows:

[0017] In this invention, the thermal insulation blanket can be retracted and extended using simple fastening bolts, ropes, and other structures. Compared with roller blinds, it has lower costs, is easier to install, and is more convenient for later maintenance. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of the fastening bolt in one embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the fastening bolt and the lifting clip from one perspective in one embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the fastening bolt and the lifting clip from another perspective in another embodiment of the present invention;

[0022] In the diagram: 1. Fastening bolt, 11. Head, 111. Racket, 112. Snap-fit ​​surface, 12. Rod, 121. Through hole, 122. Annular groove, 2. Pull-up clamp, 21. Clamp assembly, 211. Fixed arm, 212. Swing arm, 213. Adjusting bolt, 214. Opening, 215. Nut, 216. Tightening rod, 22. Mounting bracket, 221. Stop pawl, 222. Rotating shaft, 223. Torsion spring, 224. Telescopic clamp, 225. Elastic element. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0024] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0025] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between 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.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, 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. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] like Figures 1-2 As shown, this invention illustrates a fastening bolt 1 in one embodiment. In some examples, the head 11 of the fastening bolt 1 is designed with a ring of ratchet teeth 111, forming a ratchet-like structure. When it is necessary to retract or extend the insulation blanket, a rope is tied to the insulation blanket, and the other end of the rope is wrapped around the shank 12 of the fastening bolt 1. After the fastening bolt 1 rotates, for example, by connecting a small external motor or motor to drive its rotation, the rope will be continuously wound up, and the rope will pull the insulation blanket from the top of the greenhouse. When it is lifted to the designated position, the motor can be turned off. At this time, due to the cooperation between the stop pawl 221 and the ratchet teeth 111, the fastening bolt 1 can be prevented from accidentally reversing. When it is necessary to release the insulation blanket, the restriction of the stop pawl 221 on the ratchet teeth 111 is released, and the motor drives the fastening bolt 1 to reverse and release the rope. The insulation blanket will return to its original position under its own weight.

[0030] It should be noted that the top of the greenhouse is usually arched. If the insulation blanket is pulled over the highest point, it cannot be covered back up by its own weight. To solve this problem, a fastening bolt 1 can be arranged on each side of the insulation blanket and connected to the edge of the insulation blanket on the opposite side. For example, if the fastening bolt 1 on the left side pulls the right side of the insulation blanket, the highest position to be lifted will not exceed the highest point of the greenhouse.

[0031] For example, such as Figure 1 As shown, the advantages of this setup are: the thermal insulation blanket can be retracted and extended using simple fastening bolts, ropes, and other structures, which is lower in cost than a roller shutter, easier to install, and more convenient for later maintenance.

[0032] like Figures 1-2 As shown, this invention illustrates a fastening bolt 1 in another embodiment. In some examples, the ratchet 111 has a snap-fit ​​surface 112 for engaging with the external stop pawl 221, ensuring tight engagement with the stop pawl 221 and preventing the fastening bolt 1 from reversing. The shank 12 of the fastening bolt 1 also has a through hole 121 for the rope to pass through and be tied to the shank 12. In this way, the fastening bolt 1 can effectively wind up the rope after rotation. If the rope is directly looped onto the shank 12, slippage may occur, affecting the winding of the rope.

[0033] For example, such as Figure 1 As shown, the advantage of this setup is that it avoids slippage between the rope and pole 12, effectively allows for rope winding, and thus enables the efficient deployment and retraction of the thermal insulation blanket.

[0034] like Figures 2-3 As shown, the pull-up clamp 2 is illustrated in another embodiment of the present invention. It is used in conjunction with the fastening bolt 1. In some examples, to achieve simple and quick fixing and disassembly of the overall structure, the pull-up clamp 2 is designed as two parts: a clamp assembly 21 and a mounting frame 22. Two holes are first opened on the mounting frame 22, and the fastening bolt 1 is placed in the two holes. The fastening bolt 1 can rotate freely. The clamp assembly 21 consists of a fixed arm 211, a swing arm 212, an adjusting bolt 213, and a nut 215 located on the adjusting bolt 213. The fixed arm 211 is fixedly installed on the mounting frame 22, and the swing arm 212 is swung at one end of the fixed arm 211. The adjusting bolt 213 is swung at the other end. The swing arm 212 has an opening 214 for the adjusting bolt 213 to pass through, and the nut 215 is located outside the opening 214. When using this integrated structure, simply fix a round pipe outside the greenhouse, then clamp the swing arm 212 and the fixed arm 211 onto the round pipe, and finally tighten the nut 215 to press the swing arm 212. The installation is then complete. To disassemble, simply twist the nut 215 in the opposite direction. It is very simple and greatly reduces costs.

[0035] For example, such as Figure 2As shown, the advantages of this setup are: it allows for the simple and quick installation and removal of the lifting clip 2, is easy to use, and is not expensive.

[0036] like Figures 2-3 As shown, it illustrates the pull-up clamp 2 in another embodiment of the present invention. The stop pawl 221 is oscillatingly mounted on the mounting bracket 22 via the rotating shaft 222, and the torsion spring 223 applies a force to the stop pawl 221 to approach the ratchet 111 and abut against the locking surface 112. This arrangement only allows the fastening bolt 1 to rotate in one direction. When it needs to rotate in the opposite direction, the stop pawl 221 can be manually oscillated until it disengages from the ratchet 111.

[0037] like Figures 2-3 As shown, this invention illustrates the pull-up clamp 2 in another embodiment. When the fastening bolt 1 is driven manually by a handwheel or other means without an external motor, a telescopic clamp 224 connected to an elastic element 225 is provided on the mounting bracket 22 to prevent the fastening bolt 1 from moving axially unexpectedly. The fastening bolt 1 has an annular groove 122. When the fastening bolt 1 is installed on the mounting bracket 22, the telescopic clamp 224 can be moved to one side to avoid obstructing the insertion of the fastening bolt 1 into the hole. After the fastening bolt 1 is inserted, the telescopic clamp 224 is released, and the telescopic clamp 224 can automatically engage in the annular groove 122 of the fastening bolt 1 under the elastic force of the elastic element 225, thus restricting its axial movement.

[0038] For example, such as Figure 3 As shown, the advantage of this setting is that by using the telescopic clip 224 and the annular groove 122, the axial locking of the fastening bolt 1 can be achieved simply and effectively, avoiding accidental movement during use and affecting the opening and closing of the thermal insulation blanket.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A fastening bolt, comprising a head (11) and a shank (12) connected together, characterized in that, The head (11) has a plurality of ratchet teeth (111) spaced apart along its circumference. The rod (12) is used to wind the rope connected to the insulation blanket. The ratchet teeth (111) are used to abut against an external stop claw (221) to limit the rotation of the rod (12). The rod (12) is configured to wind up the rope to pull open the insulation blanket after rotation, and to abut against the stop claw (221) through the ratchet teeth (111) to prevent reverse rotation from releasing the insulation blanket.

2. A fastening bolt according to claim 1, characterized in that, The ratchet (111) has a snap-fit ​​surface (112) for abutting against the stop pawl (221) to prevent the fastening bolt (1) from rotating in the opposite direction.

3. A fastening bolt according to claim 1, characterized in that, The rod (12) has a radial through hole (121) for the end of a rope to pass through and be tied to the rod (12).

4. A pull-up clamp for installing a fastening bolt according to any one of claims 1-3, characterized in that, The device includes a clamp assembly (21) and a mounting bracket (22) connected together. The clamp assembly (21) includes a fixed arm (211) disposed on the mounting bracket (22), and a swing arm (212) and an adjusting bolt (213) both oscillatingly disposed on the fixed arm (211). The swing arm (212) has an opening (214). One end of the adjusting bolt (213) passing through the opening (214) is threaded with a nut (215). The swing arm (212) is configured to clamp or loosen after the nut (215) is rotated.

5. A pull-up clamp according to claim 4, characterized in that, The fastening bolt (1) is rotatably mounted on the mounting bracket (22), and the stop pawl (221) is swung on the mounting bracket (22) via a rotating shaft (222). A torsion spring (223) is wound on the rotating shaft (222). One end of the torsion spring (223) acts on the mounting bracket (22) and the other end acts on the stop pawl (221) to provide the force for the stop pawl (221) to abut against the ratchet (111).

6. A pull-up clamp according to claim 4, characterized in that, The outer peripheral wall of the rod (12) also has an annular groove (122), and a telescopic clip (224) is movably provided on the mounting bracket (22). The telescopic clip (224) is configured to be inserted into the annular groove (122) after being moved to lock the axial position of the fastening bolt (1).

7. A pull-up clamp according to claim 6, characterized in that, The mounting bracket (22) is also provided with an elastic element (225). One end of the elastic element (225) acts on the mounting bracket (22) and the other end acts on the telescopic clip (224) to provide the force for the telescopic clip (224) to be inserted into the annular slot (122).

8. A pull-up clamp according to claim 4, characterized in that, Several of the ratchet teeth (111) are configured to engage with the stop pawl (221) to allow the rod (12) to rotate in one direction.

9. A pull-up clamp according to claim 7, characterized in that, The elastic element (225) has several components.

10. A pull-up clamp according to claim 4, characterized in that, The nut (215) has an outwardly extending screw rod (216).

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