A rod locking and unlocking structure and a quick-opening curtain

Abstract

The application relates to the technical field of sky screens, in particular to a rod body locking and unlocking structure and a quick-opening sky screen, wherein the rod body locking and unlocking structure comprises a first rod body, a second rod body, a fixing sleeve, a pull-down sleeve and a reset piece; the second rod body extends into one end of the first rod body; the fixing sleeve comprises a first fixing sleeve unit and a second fixing sleeve unit; the first fixing sleeve unit is arranged at one end of the first rod body connected with the second rod body; the second fixing sleeve unit is arranged at one end of the first fixing sleeve unit away from the second rod body; and the pull-down sleeve is arranged outside the first fixing sleeve unit. By pulling the pull-down sleeve, the extrusion part on the inner wall of the pull-down sleeve extrudes the extrusion positioning piece; after the positioning piece is retracted into the first rod body, the locking state between the first rod body and the second rod body can be released; and only a simple pulling action is needed to completely release the locking state between the first rod body and the second rod body, so that the operation is simple.

Description

Technical Field

[0001] This application relates to the field of skylight technology, specifically a rod locking and unlocking structure and a quick-opening skylight. Background Technology

[0002] Canopy or tent products typically include a head unit, multiple support poles hinged to the head unit, and a canopy laid on the outside of the support structure. For easy storage, the support poles are usually telescopic. Based on an understanding of the relevant technology, the support poles consist of a telescopic first pole and a telescopic second pole. The first and second poles are locked together by a positioning element. Unlocking the positioning element is mainly achieved by squeezing an external adjusting sleeve. In actual use, the adjusting sleeve may not fully squeeze the positioning element, resulting in incomplete release of the lock between the first and second poles, which affects the user experience. Utility Model Content

[0003] The purpose of at least one specific embodiment of this utility model is to overcome the defects of the existing technology and provide a rod locking and unlocking structure and a quick-opening canopy.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A lever locking and unlocking structure includes:

[0006] The first rod has a first positioning hole at one end;

[0007] The second rod has one end extending into the first rod, and the second rod has a second positioning hole. An elastic element is installed inside the second rod, and the elastic element has a positioning element. Under the elastic force of the elastic element, the positioning element can pass through the first positioning hole and the second positioning hole, so that the first rod and the second rod are locked.

[0008] A fixed sleeve is fitted onto the outside of the first rod.

[0009] A pull-down sleeve is fitted onto the outside of a fixed sleeve, and the pull-down sleeve has a pressing part that is positioned opposite to the positioning element;

[0010] The reset component is sleeved on the outside of the fixed sleeve and located between the fixed sleeve and the pull-down sleeve. The two ends of the reset component abut against the pull-down sleeve and the fixed sleeve, respectively.

[0011] When the pull-down sleeve is pulled, the extrusion part can compress the positioning element, causing the positioning element to be compressed into the first rod body. The locking state of the first rod body and the second rod body is released, and the reset element can drive the pull-down sleeve to reset after the pull-down displacement.

[0012] Furthermore, the extrusion section has an inclined extrusion surface facing the positioning member. When the pull-down sleeve is pulled, the inclined extrusion surface can apply extrusion force to the positioning member, causing the positioning member to be compressed into the first rod body.

[0013] Furthermore, the fixing sleeve includes a first fixing sleeve unit and a second fixing sleeve unit sleeved outside the first rod body, wherein the wall surface of the first fixing sleeve unit is provided with a first groove, and the extrusion part extends into the first groove;

[0014] When the first rod and the second rod are locked, the positioning element is at least partially located outside the first rod, and in the direction of movement of the pull-down sleeve, the positioning element at least partially coincides with the projection of the extrusion part.

[0015] Furthermore, a first limiting part is provided on the inner wall of the first fixed sleeve unit, and a first limiting opening is provided on the outer wall of the first rod body. After the first fixed sleeve unit is sleeved on the outer side of the first rod body, the first limiting part is located in the first limiting opening, and the first fixed sleeve unit is circumferentially limited on the outer side of the first rod body.

[0016] Furthermore, a second limiting part is provided on the outer wall of the first fixed sleeve unit, and a second limiting opening is provided on the second fixed sleeve unit. After the second fixed sleeve unit is sleeved on the outside of the first fixed sleeve unit, the second limiting part is located inside the second limiting opening, so that the second fixed sleeve unit is circumferentially limited on the outside of the first fixed sleeve unit.

[0017] Furthermore, the second rod has a first limiting surface, and one end of the first fixed sleeve unit is provided with a guide portion, which has a second limiting surface. When the first limiting surface and the second limiting surface cooperate, the second rod can be circumferentially limited.

[0018] The second rod is provided with a limiting member. When the locking state of the first and second rods is released, the second rod is stretched until the limiting member contacts the guide part. The guide part can limit the stretching stroke of the second rod through the limiting member.

[0019] Furthermore, the inner wall of the pull-down sleeve is provided with multiple guide posts, wherein a guide groove is formed between two adjacent guide posts, and a positioning post is provided on the outer wall of the first fixed sleeve unit. The positioning post is located in the guide groove, so that the pull-down sleeve is circumferentially limited relative to the first fixed sleeve unit and can move along the length direction of the first fixed sleeve unit.

[0020] Furthermore, the guide post is provided with a first reset extrusion end face, and the second fixed sleeve unit is provided with a second reset extrusion end face. One end of the reset member abuts against the first reset extrusion end face, and the other end abuts against the second reset extrusion end face.

[0021] Furthermore, the reset element is specifically a spring or rubber band.

[0022] The advantages of the rod locking and unlocking structure provided in this application compared with the prior art are as follows: by pulling down the sleeve, the extrusion part on the inner wall of the sleeve extrudes and presses the positioning member. After the positioning member retracts into the first rod, the locking state between the first rod and the second rod can be released. The locking state between the first rod and the second rod can be completely released with a simple pulling action, which is easy to operate.

[0023] Another technical solution adopted in this application is to provide a quick-opening tarpaulin, including tent poles, on which the above-mentioned pole locking and unlocking structure is provided.

[0024] Because the quick-opening canopy is equipped with the aforementioned pole locking and unlocking structure, it has the technical effects of the aforementioned pole locking and unlocking structure. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the rod locking and unlocking structure in Embodiment 1 of this utility model.

[0027] Figure 2 This is a schematic diagram of the first and second rods.

[0028] Figure 3 for Figure 1 A diagram from another perspective.

[0029] Figure 4 for Figure 3 A schematic diagram of the cross-section along line AA.

[0030] Figure 5 for Figure 4 Enlarged schematic diagram of area B (locked state).

[0031] Figure 6 for Figure 4 Enlarged diagram of area B (unlocked state).

[0032] Figure 7 This is a schematic diagram of the first fixed sleeve unit.

[0033] Figure 8 This is a schematic diagram of the pull-down sleeve.

[0034] Figure 9 This is a schematic diagram of the second fixed sleeve unit.

[0035] Figure 10 This is a schematic diagram of some components in a pull-unlock mechanism.

[0036] Figure 11 for Figure 10 A schematic diagram of the cross section along line CC.

[0037] Figure 12 This is a schematic diagram of the rapid opening of the canopy in Embodiment 2 of this utility model. Detailed Implementation

[0038] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0039] Example 1

[0040] Reference Figure 1 , Figure 3 A rod locking and unlocking structure 100 includes a first rod 10, a second rod 20, a fixed sleeve 30, a pull-down sleeve 40, and a reset member 50. The second rod 20 extends into and is installed at one end of the first rod 10. The fixed sleeve 30 includes a first fixed sleeve unit 301 and a second fixed sleeve unit 302. The first fixed sleeve unit 30 is installed at the end where the first rod 10 is connected to the second rod 20. The second fixed sleeve unit 40 is installed at the end of the first fixed sleeve unit 30 away from the second rod 20. The pull-down sleeve 50 is sleeved on the outside of the first fixed sleeve unit 301.

[0041] Reference Figure 2 , Figure 3 , Figure 4The first rod 10 is a hollow rod, with a first positioning hole 101 and two first limiting ports 102 on the end connected to the second rod. A sliding groove 103 is also provided on one side of the positioning hole 101. The second rod 20 is also a hollow rod, with a second positioning hole 201 on the end connected to the first rod 10. An elastic element 202 is installed inside the second rod 20. The elastic element 202 is a U-shaped leaf spring. A positioning element 203 is provided on one end of the elastic element 202, which extends from the second positioning hole 201 inside the second rod 20. Furthermore, when the second rod 20 is connected to the first rod 10, the positioning member 203 will also pass through the first positioning hole 101 inside the first rod 10. At this time, the first rod 10 and the second rod 20 are locked. In addition, two limiting members 204 are provided on the second rod 20. Part of the circumferential surface of the second rod 20 is a plane. The limiting members 204 are on the plane. A guide member 205 is fixed near the port of the second rod 20 so that the second rod 20 will not shake inside the first rod 10 during the retraction process.

[0042] Reference Figure 2 , Figure 7 The first fixing sleeve unit 301 is installed on the end where the first rod 10 and the second rod 20 are connected. The first fixing sleeve unit 301 is provided with a first groove 303. When the first fixing sleeve unit 301 is installed on the first rod 10, the part of the positioning member 203 exposed in the first positioning hole 101 is in the first groove 303. In addition, the first fixing sleeve unit 301 is provided with a first limiting part 304 that is adapted to the first limiting port 102 of the first rod 10. The protruding part of the inner wall of the first limiting part 304 extends into and engages with the first limiting port 102, so that the first fixing sleeve unit 301 is fixed on the first rod 10 and is circumferentially limited. The first fixing sleeve unit 301 is provided with a second limiting part 305 at the end away from the connection with the second rod 20 to fix the second fixing sleeve unit 302. The first fixing sleeve unit is also provided with a positioning post 306. The first fixed sleeve unit 301 has a guide portion 307 at the port connected to the first rod 10. The second rod 20 passes through the guide portion 307. The second rod 20 has a first limiting surface 20a, and the guide portion 307 has a second limiting surface 307a. After the first limiting surface 20a and the second limiting surface 307a cooperate, the guide portion 307 can circumferentially limit the second rod 20. The guide portion 307 cooperates with the limiting member 204 on the second rod 20 to prevent the second rod 20 from being pulled out excessively in the unlocked state, thus ensuring the length of the second rod 20 in the first rod 10.

[0043] Reference Figure 10 , Figure 11This application also includes a reset member 50, which is installed between the first fixed sleeve unit 301 and the pull-down sleeve 40. The two ends of the reset member 50 act on the pull-down sleeve 40 and the first fixed sleeve unit 301 respectively, and can drive the moved pull-down sleeve 40 to reset. In this embodiment, the reset member 50 is a spring. After the pull-down sleeve 40 moves to the outside of the first fixed sleeve unit 301, the compressed or stretched reset member 50 (spring) can drive the pull-down sleeve 40 to reset.

[0044] In some embodiments, the reset member 50 may also be a rubber band. After the pull-down sleeve 40 moves to the outside of the first fixed sleeve unit 301, the stretched reset member 50 (rubber band) can drive the pull-down sleeve 40 to reset.

[0045] Reference Figure 8 The pull-down sleeve 40 is installed on the first fixed sleeve unit 301. The inner wall of the pull-down sleeve is provided with a pressing part 401. The pressing part 401 has a first inclined pressing surface 402. The inner wall of the pull-down sleeve 40 is provided with annularly distributed guide posts 404. A guide groove 403 is formed between two guide posts 404. The guide groove 403 slides with the positioning post 306 on the first fixed sleeve unit. When the pull-down sleeve 40 is installed on the first fixed sleeve unit 301, the pressing part 401 is in the first groove 303 and the sliding groove 103. Thus, the pressing part 401 presses the movement of the positioning member 203 after the pull-down sleeve 40 is pulled.

[0046] In addition, the guide post 404 is provided with a first reset pressing end face 405, which abuts against one end of the reset member 50.

[0047] Reference Figure 9 The second fixed sleeve unit 302 is installed at the end of the first fixed sleeve unit 301 away from the second rod 20. The second fixed sleeve unit 302 is provided with a second reset extrusion end face 308. The other end of the reset member 50 abuts against the second reset extrusion end face 308. The second fixed sleeve unit 302 is provided with two second limiting ports 309. The second limiting ports 309 are installed on the second limiting part 305 on the first fixed sleeve unit 301, and the second groove 310 on the second fixed sleeve unit 302 is aligned with the first groove 303 to complete the installation of the second fixed sleeve unit 302. The combination of the first groove 303 and the second groove 310 limits the range of motion of the extrusion part 401. The cooperation of the second limiting part 305 and the second limiting port 309 makes the second fixed sleeve unit 302 circumferentially limited on the outside of the first fixed sleeve unit 301.

[0048] Reference Figure 3 , Figure 4In practical application, the rod locking and unlocking structure 100 involves installing the elastic element 202 inside the second rod 20 and allowing the positioning element 203 to extend from the second positioning hole 201. The limiting element 204 is then installed on the second rod. Compressing the positioning element 203 allows the second rod 20 to retract into the first rod 10. When the positioning element 203 extends from the first positioning hole 101 of the first rod 10, the connection between the first rod 10 and the second rod 20 is completed, at which point the two rods are locked. The first fixed sleeve unit 301 is installed on the first rod body 10, with the exposed portion of the positioning member 203 inside the first groove 303. The reset member 50 is first installed on the inner wall of the pull-down sleeve 40, with one end of the reset member 50 abutting against the first reset pressing end face 405 on the guide post 404. Then, the guide groove 403 of the pull-down sleeve 40 is fitted with the positioning post 306 on the first fixed sleeve unit 301, so that the pull-down sleeve 40 is installed on the first fixed sleeve unit 301 and the pressing part 401 is inside the first groove 303. The installation of the pull-down sleeve 40 and the reset member 50 is complete. The second fixed sleeve unit 302 is installed on the first fixed sleeve unit 301, with the second limiting port 309 installed on the second limiting part 305, and simultaneously, the second reset pressing end face 308 abutting against the other end of the reset member 50, completing the installation of the second fixed sleeve unit 302.

[0049] After the pull-down sleeve 40 is fitted onto the outside of the first fixed sleeve unit 301, the extrusion part 401 extends into the first groove 303 and approaches the positioning member 203, and the positioning member 203 is at least partially located on the outside of the first rod 10.

[0050] When the first rod 10 and the second rod 20 are locked, the positioning member 203 and the projection of the pressing part 401 at least partially coincide in the moving direction of the pull-down sleeve 40.

[0051] Reference Figure 5 , Figure 6 When the second rod 20 is to be retracted into the first rod 10, the pull-down sleeve 40 is pulled, and the inclined pressing surface 402 of the pressing part 401 presses the positioning member 203, compressing it into the first rod 10. At this time, the locking state is released, and the second rod 20 can be retracted into the first rod 10. At this time, the positioning member 203 is continuously compressed due to the contact with the inner wall of the first rod 10. When the pull-down sleeve 40 is released, it is reset by the action of the reset member 50, and both rods are in the retracted state. When the second rod 20 is to be used, it is pulled outward so that the positioning member 203 re-extends from the first positioning hole 101 of the first rod 10. At this time, the first rod 10 and the second rod 20 return to the locked state. The whole process is simple and convenient to operate.

[0052] Example 2

[0053] Reference Figure 12Based on the same technical concept, this application provides a quick-opening canopy 200, including the pole locking and unlocking structure 100 in the above embodiments. The first pole 10 and the second pole 20 are constructed as the tent poles 210 of the quick-opening canopy 200. The quick-opening canopy 200 has the technical effects of the pole locking and unlocking structure 100. When the tent pole 210 needs to be retracted, the pull-down sleeve 40 is pulled to compress the positioning member 203 into the pole body, so that the tent pole 210 can be freely extended and retracted. Moreover, after this structure is applied to the tent pole 210, the direction of pulling down the sleeve 40 is the same as the direction of retraction of the tent pole 210, which is more in line with the user's intuitiveness. The whole process is simple and convenient to operate.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A rod locking and unlocking structure, characterized in that, include: The first rod (10) has a first positioning hole (101) on one end; The second rod (20) has one end inserted into the first rod (10). The second rod (20) has a second positioning hole (201). An elastic element (202) is installed inside the second rod (20). The elastic element (202) has a positioning element (203). Under the elastic force of the elastic element (202), the positioning element (203) can pass through the first positioning hole (101) and the second positioning hole (201), so that the first rod (10) and the second rod (20) are locked. A fixed sleeve (30) is fitted onto the outside of the first rod (10); A pull-down sleeve (40) is sleeved on the outside of the fixed sleeve (30), and the pull-down sleeve (40) has a pressing part (401) disposed opposite to the positioning member (203); The reset component (50) is located between the fixed sleeve (30) and the pull-down sleeve (40). The two ends of the reset component act on the pull-down sleeve (40) and the fixed sleeve (30) respectively, driving the pull-down sleeve (40) to reset. When the pull-down sleeve (40) is pulled, the squeezing part (401) can squeeze the positioning member (203) so that the positioning member (203) is compressed into the first rod (10), the locking state of the first rod (10) and the second rod (20) is released, and the reset member (50) can drive the pull-down sleeve (40) after the pull displacement to reset.

2. The rod locking and unlocking structure according to claim 1, characterized in that, The extrusion part (401) has an inclined extrusion surface (402) facing the positioning member (203). When the pull-down sleeve (40) is pulled, the inclined extrusion surface (402) can apply extrusion force to the positioning member (203) so that the positioning member (203) is compressed into the first rod body (10).

3. The rod locking and unlocking structure according to claim 1, characterized in that, The fixed sleeve (30) includes a first fixed sleeve unit (301) and a second fixed sleeve unit (302) sleeved on the outside of the first rod body (10), wherein the first fixed sleeve unit (301) has a first groove (303) on its wall surface, and the extrusion part (401) extends into the first groove (303). When the first rod (10) and the second rod (20) are locked, the positioning member (203) is at least partially located outside the first rod (10), and in the moving direction of the pull-down sleeve (40), the projection of the positioning member (203) at least partially coincides with that of the pressing part (401).

4. The rod locking and unlocking structure according to claim 3, characterized in that, The first fixed sleeve unit (301) has a first limiting part (304) on its inner wall and a first limiting opening (102) on its outer wall. After the first fixed sleeve unit (301) is sleeved on the outer side of the first rod (10), the first limiting part (304) is located inside the first limiting opening (102), and the first fixed sleeve unit (301) is circumferentially limited on the outer side of the first rod (10).

5. The rod locking and unlocking structure according to claim 3, characterized in that, The first fixed sleeve unit (301) has a second limiting part (305) on its outer wall and the second fixed sleeve unit (302) has a second limiting opening (309). After the second fixed sleeve unit (302) is sleeved on the outside of the first fixed sleeve unit (301), the second limiting part (305) is located inside the second limiting opening (309), so that the second fixed sleeve unit (302) is circumferentially limited on the outside of the first fixed sleeve unit (301).

6. The rod locking and unlocking structure according to claim 3, characterized in that, The second rod (20) has a first limiting surface (20a), and one end of the first fixed sleeve unit (301) is provided with a guide part (307). The guide part (307) has a second limiting surface (307a). After the first limiting surface (20a) and the second limiting surface (307a) cooperate, the second rod (20) can be circumferentially limited. The second rod (20) is provided with a limiting member (204). When the locking state of the first rod (10) and the second rod (20) is released, the second rod (20) is stretched until the limiting member (204) abuts against the guide (307). The guide (307) can limit the stretching stroke of the second rod (20) through the limiting member (204).

7. The rod locking and unlocking structure according to claim 3, characterized in that, The inner wall of the pull-down sleeve (40) is provided with a plurality of guide posts (404), wherein a guide groove (403) is formed between two adjacent guide posts (404). The outer wall of the first fixed sleeve unit (301) is provided with a positioning post (306), which is located in the guide groove (403), so that the pull-down sleeve (40) is circumferentially limited relative to the first fixed sleeve unit (301) and can move along the length direction of the first fixed sleeve unit (301).

8. The rod locking and unlocking structure according to claim 7, characterized in that, The guide post (404) is provided with a first reset extrusion end face (405), and the second fixed sleeve unit (302) is provided with a second reset extrusion end face (308). One end of the reset member (50) abuts against the first reset extrusion end face (405), and the other end abuts against the second reset extrusion end face (308).

9. The rod locking and unlocking structure according to claim 1, characterized in that, The reset element (50) is a spring or a rubber band.

10. A quick-opening skylight, characterized in that, Includes tent poles, wherein the tent poles are provided with a pole locking and unlocking structure as described in any one of claims 1-9.

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