Removable light curtain guide rail structure and spiral track fast door with the guide rail structure installed thereon

Abstract

The present invention discloses a detachable light curtain guide rail structure and a spiral track rapid door installed with the guide rail structure. The detachable light curtain guide rail structure includes a guide rail I and a guide rail II. The guide rail II is locked and fastened to the top of the guide rail I through a locking member. The guide rail I includes an overlap portion, an installation portion and a support portion. A light curtain installation cavity is provided on the guide rail I. The spiral track rapid door installed with the detachable light curtain guide rail structure includes a spiral track rapid door body, a hinge wheel and a detachable light curtain guide rail structure. The curtain plates of the spiral track rapid door body are hingedly connected by a connecting rod and a hinge. Hinge wheels are sleeved at both ends of the connecting rod. The hinge wheels are arranged in a rolling manner in the detachable light curtain guide rail structure. The present invention is simple and practical. When repairing the light curtain or the hinge wheel for the spiral track rapid door, only one side of the guide rail wall in the light curtain guide rail needs to be removed to perform the corresponding maintenance operation. The disassembly and assembly are reliable and convenient, and the cost is low.

Description

Technical Field

[0001] The invention relates to the technical field of guide rail structures, in particular to a detachable light curtain guide rail structure and a spiral track fast door installed with the guide rail structure. Background Art

[0002] The spiral track fast door is a door that is connected in series with curtain plates that move at multiple joints. In a fixed guide rail, the spiral track fast door curtain slides up and down along the guide rail with the upper reel as the center to open and close. In order to improve the safety of the spiral track fast door during use, the existing spiral track fast door is often provided with a light curtain in its guide rail, so as to judge whether the door stops during the up and down process by whether the incident light of the light curtain is blocked by an obstacle. However, the existing light curtain guide rail for spiral track fast door is often an integrated structure in actual use. When repairing or maintaining the light curtain or the hinge wheel on the spiral track fast door, the light curtain guide rail needs to be disassembled as a whole, which makes maintenance difficult and the disassembly and assembly complicated. Therefore, the present invention improves the light curtain guide rail structure to address this problem. Summary of the invention

[0003] The main purpose of the present invention is to solve the problems existing in the prior art and to provide a simple and practical detachable light curtain guide rail structure and a spiral track rapid door installed with the guide rail structure, which can be reliably and conveniently disassembled and assembled when repairing a light curtain or a hinge wheel for a spiral track rapid door. The spiral track rapid door can perform corresponding maintenance operations by only removing one side of the guide rail wall in the light curtain guide rail.

[0004] The present invention is achieved according to the following technical solutions:

[0005] A detachable light curtain guide rail structure comprises a guide rail I and a guide rail II, wherein the guide rail II is fastened to the top of the guide rail I by a locking member; the guide rail I comprises an overlapping portion, a mounting portion and a supporting portion, and the overlapping portion, the mounting portion and the supporting portion can be integrally formed; the guide rail I is fixed at an installation position, and a light curtain installation cavity is provided on the guide rail I.

[0006] Furthermore, a longitudinal upper convex strip and a longitudinal lower convex strip are correspondingly arranged on the inner side wall of the mounting portion, a fixing screw mounting cavity is formed between the longitudinal upper convex strip and the longitudinal lower convex strip, and a light curtain mounting cavity is formed between the longitudinal lower convex strip and the upper surface of the supporting portion, and the light curtain can be fixed in the light curtain mounting cavity by a locking bolt.

[0007] Furthermore, the overlapping portion includes a transverse overlapping surface I, and a transverse overlapping surface II is arranged on the guide rail II corresponding to the transverse overlapping surface I, the transverse overlapping surface II contacts the transverse overlapping surface I, and the locking piece passes through the transverse overlapping surface II and is locked in the overlapping portion.

[0008] Furthermore, a first limit slot I is provided on the transverse overlapping surface I, and a first limit convex II is provided on the transverse overlapping surface II corresponding to the first limit slot I, and the first limit convex II is matched and clamped in the first limit slot I to position the guide rail II on the guide rail I.

[0009] Furthermore, a limit slot II is provided on the transverse overlapping surface II, and a limit convex I is provided on the transverse overlapping surface I corresponding to the limit slot II, and the limit convex I is matched and clamped in the limit slot II to limit the longitudinal movement of the guide rail II.

[0010] Furthermore, the cross-section of the position-limiting protrusion I is a right-angled trapezoid, and the structure of the position-limiting groove II matches the structure of the position-limiting protrusion I.

[0011] Furthermore, the overlapping portion includes a transverse overlapping surface I and a vertical overlapping surface I, and the transverse overlapping surface II and the vertical overlapping surface II are correspondingly arranged on the guide rail II, the transverse overlapping surface I is in contact with the transverse overlapping surface II, and the vertical overlapping surface I is in contact with the vertical overlapping surface II; a second limiting slot I is provided on the vertical overlapping surface I, and a second limiting convex II is provided on the vertical overlapping surface II corresponding to the second limiting slot I, and the second limiting convex II is cooperated and clamped in the second limiting slot I to position the guide rail II on the guide rail I and limit the up and down movement of the guide rail II.

[0012] Furthermore, the cross section of the overlapping portion is configured to be a right-angled trapezoid.

[0013] Furthermore, the locking member may be configured as a self-tapping screw.

[0014] Furthermore, positioning grooves may be provided on the wall surfaces of the guide rail II, the overlapping portion and the mounting portion to facilitate the positioning connection between the guide rails I and II, and between the guide rail I and the light curtain.

[0015] A spiral track rapid door installed with a detachable light curtain guide rail structure, comprising a spiral track rapid door body, a hinge wheel and a detachable light curtain guide rail structure; the curtain plates of the spiral track rapid door body are hingedly connected by a connecting rod and a hinge, hinge wheels are sleeved on both ends of the connecting rod, and the hinge wheels are rollingly arranged in the detachable light curtain guide rail structure to ensure that the door curtain of the spiral track rapid door body is lifted and lowered linearly along the detachable light curtain guide rail structure, and the detachable light curtain guide rail structure is correspondingly arranged on both sides of the spiral track rapid door body.

[0016] Furthermore, the guide rail I in the detachable light curtain guide rail structure is fixed to the installation position of the spiral track rapid door body through a support plate.

[0017] Furthermore, a light curtain track is formed between guide rails I and II in the detachable light curtain guide rail structure, and the hinge wheel can be arranged in the light curtain track in a coordinated manner.

[0018] The advantages and beneficial effects of the present invention are:

[0019] (1) By designing the light curtain guide rail to be a detachable structure consisting of guide rail I and guide rail II, when repairing the light curtain, only guide rail II needs to be removed to perform the corresponding maintenance operation of the light curtain, which is simple and convenient. In addition, the detachable structure design of guide rail I and guide rail II also makes it possible to replace only the damaged part when one of them is damaged, and the other part can continue to be used, thereby saving costs.

[0020] (2) By integrally forming the overlapping portion, the mounting portion and the supporting portion, the production process of the guide rail I can be simplified and the production cost can be reduced.

[0021] (3) Through the cooperation of the first limit card slot I, the first limit card protrusion II, the limit card slot II and the limit card protrusion I, the guide rail II can be buckled on the guide rail I, and the first limit card protrusion II and the limit card protrusion I can perform the transverse positioning of the guide rail II on the guide rail I to prevent its longitudinal movement, so as to further facilitate the installation of the two, ensure that the overlapping surfaces of the two are in full contact, and improve the installation efficiency.

[0022] (4) By designing the cross section of the limit clamping protrusion I to be a right-angled trapezoidal structure, the contact area between the limit clamping protrusion I and the limit clamping groove II can be further increased, thereby improving the connection reliability between the guide rails I and II. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the guide rail II in the first embodiment of the present invention;

[0024] Figure 2 is a schematic structural diagram of a detachable light curtain guide rail structure in Embodiment 1 of the present invention;

[0025] Figure 3 is a structural schematic diagram of a detachable light curtain guide rail structure in Embodiment 2 of the present invention;

[0026] Figure 4 is a schematic structural diagram of a detachable light curtain guide rail structure in Embodiment 3 of the present invention;

[0027] Figure 5 is a schematic diagram of the structure of the guide rail II in the fourth embodiment of the present invention;

[0028] Figure 6 is a schematic structural diagram of a detachable light curtain guide rail structure in a fourth embodiment of the present invention;

[0029] Figure 7 Schematic diagram of the connection structure between the detachable light curtain guide rail structure and the support plate in the fourth embodiment of the present invention;

[0030] Figure 8 is a structural schematic diagram of a detachable light curtain guide rail structure in Embodiment 5 of the present invention;

[0031] Fig. 9 is a schematic structural diagram of a detachable light curtain guide rail structure in a sixth embodiment of the present invention;

[0032] Fig.10 yes Fig. 9 A partial enlarged view of the

[0033] Fig.11 Schematic diagram of the connection structure between the detachable light curtain guide rail structure, the support plate and the light curtain in the seventh embodiment of the present invention;

[0034] Fig.12 1 is a schematic diagram of the structure of a spiral track fast door equipped with a detachable light curtain guide rail structure in Embodiment 7 of the present invention;

[0035] Fig.13 It is a structural schematic diagram of a spiral track fast door equipped with a detachable light curtain guide rail structure in Example 7 of the present invention (with the cover shell opened).

[0036] Among them, 10-guide rail Ⅰ, 101-lap joint, 1011-transverse lap joint surface Ⅰ, 1012-first limit card slot Ⅰ, 1013-limit card convex Ⅰ, 1014-vertical lap joint surface Ⅰ, 1015-second limit card slot Ⅰ, 102-installation part, 1021-upper longitudinal convex strip, 1022-lower longitudinal convex strip, 1023-fixing screw installation cavity, 103-support part;

[0037] 20-guide rail II, 201-lateral overlap surface II, 202-first limit clamping protrusion II, 203-limit clamping groove II, 204-vertical overlap surface II, 205-second limit clamping protrusion II;

[0038] 30-light curtain installation cavity, 301-locking bolt, 302-light curtain;

[0039] 40-locking piece, 401-locking plate, 402-stud Ⅰ, 403-nut Ⅰ, 404-stud Ⅱ, 405-nut Ⅱ, 406-slot hole, 407-U-shaped notch;

[0040] 50-positioning groove, 60-spiral track fast door body, 601-connecting rod, 602-hinge, 603-motor, 604-roller, 605-door curtain;

[0041] 70- hinge wheel, 80- support plate, 90- light curtain track. DETAILED DESCRIPTION

[0042] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0043] Embodiment 1

[0044] like Figure 1 and Figure 2 As shown, a detachable light curtain guide rail structure includes a guide rail I10 and a guide rail II20, wherein the guide rail I10 is fixed at the installation position, and a light curtain installation cavity 30 is provided on the guide rail I10, and the guide rail II20 is fastened and buckled to the top of the guide rail I10 by a locking member 40. By designing the light curtain 302 guide rail as a detachable structure consisting of the guide rail I10 and the guide rail II20, when the light curtain 302 is repaired, only the guide rail II20 needs to be removed to perform the corresponding maintenance operation of the light curtain 302, which is simple and convenient, and can effectively avoid the problem that the existing light curtain 302 guide rail is integrally formed, and the light curtain 302 needs to be disassembled as a whole when it is repaired, resulting in cumbersome operation. In addition, the detachable structural design of the guide rail I10 and the guide rail II20 also makes it possible that when one of them is damaged, only the damaged part needs to be replaced, and the other part can continue to be used, so as to save costs.

[0045] Specifically, the structure of the light curtain installation cavity 30 matches the structure of the light curtain 302 .

[0046] Furthermore, the guide rail I10 is configured to include a lap joint 101, a mounting portion 102 and a support portion 103. The lap joint 101, the mounting portion 102 and the support portion 103 can be integrally formed. By integrally forming the lap joint 101, the mounting portion 102 and the support portion 103, the production process of the guide rail I10 can be simplified and the production cost can be reduced.

[0047] Specifically, the overlapping portion 101 and the supporting portion 103 are vertically disposed at the upper and lower sides of the mounting portion 102 correspondingly.

[0048] Furthermore, the lap joint 101 is configured to include a transverse lap joint surface Ⅰ1011, a transverse lap joint surface Ⅱ201 is configured on the guide rail Ⅱ20 corresponding to the transverse lap joint surface Ⅰ1011, the transverse lap joint surface Ⅱ201 is in contact with the transverse lap joint surface Ⅰ1011, and the locking member 40 passes through the transverse lap joint surface Ⅱ201 and is locked in the lap joint 101. By contacting the transverse lap joint surface Ⅰ1011 with the transverse lap joint surface Ⅱ201, and the locking member 40 passes through the transverse lap joint surface Ⅱ201 and the transverse lap joint surface Ⅰ1011 and is locked in the lap joint 101, good contact and locking of the guide rail Ⅰ10 and the guide rail Ⅱ20 can be ensured.

[0049] Furthermore, the locking member 40 can be configured as a self-tapping screw, which passes through the transverse overlapping surface II201 of the guide rail II20 and the transverse overlapping surface I1011 of the guide rail I10 from top to bottom in sequence, so as to achieve convenient connection between the guide rail I10 and the guide rail II20, and the operation is simple.

[0050] In addition, the locking member 40 may also be configured as a locking bolt 301 .

[0051] Furthermore, the light curtain 302 can be fixed in the light curtain installation cavity 30 by means of locking bolts 301 .

[0052] Specifically, the specific structure and working principle of the light curtain 302 are all existing technologies in this field, and its model specifications need to be determined by selection calculation based on the specific size specifications of the guide rail structure and the spiral track rapid door. Its selection calculation method is existing technology in this field. This application has not made any improvements to this, so it will not be described in detail.

[0053] Furthermore, positioning grooves 50 can be provided on the walls of guide rail II 20, the overlapping portion 101 and the mounting portion 102 to facilitate the positioning connection between guide rail I 10 and guide rail II 20, and between guide rail I 10 and the light curtain 302. The design of the positioning grooves 50 can facilitate the positioning and insertion of self-tapping screws and locking bolts 301, further simplifying the disassembly and assembly between guide rail I 10 and guide rail II 20, and between guide rail I 10 and the light curtain 302.

[0054] Furthermore, a longitudinal upper convex strip 1021 and a longitudinal lower convex strip 1022 are correspondingly provided on the inner side wall of the mounting portion 102, and a fixing screw mounting cavity 1023 is formed between the longitudinal upper convex strip 1021 and the longitudinal lower convex strip 1022, and a light curtain mounting cavity 30 is formed between the longitudinal lower convex strip 1022 and the upper surface of the support portion 103 to locate the installation position of the light curtain 302. Through the structural design of the longitudinal upper convex strip 1021 and the longitudinal lower convex strip 1022, the fixing screw can be fixedly connected between the guide rail I10 and the support plate 80, and the longitudinal lower convex strip 1022 can limit the installation position of the light curtain 302, so as to reduce the problem that the light curtain 302 is easy to move and affects the installation efficiency when the light curtain 302 is locked by the locking bolt 301.

[0055] Specifically, the longitudinal upper convex strip 1021 and the longitudinal lower convex strip 1022 can be integrally formed on the inner side wall of the mounting portion 102 .

[0056] Embodiment 2

[0057] like Figure 3 As shown, the difference from the first embodiment is that, further, a first limit slot Ⅰ1012 is provided on the transverse overlapping surface Ⅰ1011, and a first limit convex Ⅱ202 is provided on the transverse overlapping surface Ⅱ201 corresponding to the first limit slot Ⅰ1012, and the first limit convex Ⅱ202 is matched and clamped in the first limit slot Ⅰ1012 to position the guide rail Ⅱ20 on the guide rail Ⅰ10. Through the cooperation between the first limit slot Ⅰ1012 and the first limit convex Ⅱ202, when the guide rail Ⅱ20 is installed on the guide rail Ⅰ10, the first limit slot Ⅰ1012 can perform unilateral transverse positioning of the guide rail Ⅱ20 on the guide rail Ⅰ10, thereby facilitating the installation of the two and avoiding the problem that it is difficult to ensure that the overlapping surfaces of the two are fully in contact during the installation process, thereby affecting the installation efficiency.

[0058] Specifically, the first limiting protrusion II 202 can be integrally formed on the transverse overlapping surface II 201 .

[0059] Embodiment 3

[0060] like Figure 4 As shown, the difference from the second embodiment is that, further, a limit slot II203 is further provided on the transverse overlapping surface II201, and a limit convex I1013 is provided on the transverse overlapping surface I1011 corresponding to the limit slot II203, and the limit convex I1013 is matched and clamped in the limit slot II203 to limit the longitudinal movement of the guide rail II20. Through the cooperation of the first limit slot I1012, the first limit convex II202, the limit slot II203 and the limit convex I1013, the guide rail II20 can be buckled on the guide rail I10, and the first limit convex II202 and the limit convex I1013 perform transverse positioning of the guide rail II20 on the guide rail I10 to prevent its longitudinal movement, so as to further facilitate the installation of the two, ensure that the overlapping surfaces of the two are in full contact, and improve the installation efficiency.

[0061] Specifically, a limiting latch protrusion Ⅰ1013 can be integrally formed on the transverse overlapping surface Ⅰ1011.

[0062] Embodiment 4

[0063] like Figure 5-Figure 7 As shown, the difference from Example 3 is that, further, the cross-section of the limiting protrusion I1013 is a right-angled trapezoid, and the structure of the limiting slot II203 is matched with the structure of the limiting protrusion I1013. By designing the cross-section of the limiting protrusion I1013 to be a right-angled trapezoidal structure, the contact area between the limiting protrusion I1013 and the limiting slot II203 can be further increased, thereby improving the connection reliability between the guide rail I10 and the guide rail II20.

[0064] Embodiment 5

[0065] like Figure 8 As shown, the difference from embodiments one to four is that, further, the lap joint 101 is configured to include a transverse lap joint surface Ⅰ1011 and a vertical lap joint surface Ⅰ1014, and a transverse lap joint surface Ⅱ201 and a vertical lap joint surface Ⅱ204 are correspondingly arranged on the guide rail Ⅱ20, the transverse lap joint surface Ⅰ1011 is in contact with the transverse lap joint surface Ⅱ201, and the vertical lap joint surface Ⅰ1014 is in contact with the vertical lap joint surface Ⅱ204.

[0066] Furthermore, a second limit slot Ⅰ1015 is provided on the vertical lap surface Ⅰ1014, and a second limit convex Ⅱ205 is provided on the vertical lap surface Ⅱ204 corresponding to the second limit slot Ⅰ1015. The second limit convex Ⅱ205 is matched and clamped in the second limit slot Ⅰ1015 to position the guide rail Ⅱ20 on the guide rail Ⅰ10 and limit the up and down movement of the guide rail Ⅱ20. By setting the cross-section of the lap portion 101 as a right-angled trapezoid and the matching structure of the two sets of lap surfaces, the guide rail Ⅱ20 can be unilaterally positioned on the guide rail Ⅰ10, and the structural design of the second limit slot Ⅰ1015 matching with the second limit convex Ⅱ205 can prevent the guide rail Ⅱ20 from moving up and down on the guide rail Ⅰ10, so as to further ensure the reliable overlap of the two and simplify the installation operation.

[0067] Specifically, the second limiting protrusion II 205 can be integrally formed on the vertical overlapping surface II 204 .

[0068] Furthermore, the cross section of the overlapping portion 101 is configured to be a right-angled trapezoid.

[0069] Furthermore, the cross section of the overlapping portion 101 may also be configured to be rectangular (not shown in the figure).

[0070] Embodiment 6

[0071] like Fig. 9 and Fig.10 As shown, the difference from the first to fifth embodiments is that, further, the locking member 40 is configured to include a locking sheet 401, a stud I 402, a nut I 403, a stud II 404 and a nut II 405, a slot 406 and a U-shaped notch 407 are vertically provided on the locking sheet 401, the stud I 402 cooperates to pass through the U-shaped notch 407 and is threadedly locked in the guide rail I 10, the nut I 403 is threadedly sleeved on the stud I 402 to fix the locking sheet 401 on the guide rail I 10, the stud II 404 cooperates to pass through the slot 406 and is threadedly locked in the guide rail II 20, and the nut II 405 is threadedly sleeved On the stud II 404, a locking plate 401 is fixed on the guide rail II 20. Through the cooperation of the locking plate 401, the stud I 402, the nut I 403, the stud II 404 and the nut II 405, the guide rail II 20 can be locked and fixed on the guide rail I 10. Among them, the slot hole 406 opened on the locking plate 401 makes it possible to adjust the sleeve position of the slot hole 406 on the stud II 404 according to the actual distance between the stud I 402 and the stud II 404, so as to ensure that the U-shaped notch 407 can be clamped on the stud I 402, thereby reducing the processing requirements for the screw hole distance between the guide rail I 10 and the guide rail II 20 and simplifying the production process.

[0072] Embodiment 7

[0073] like Figure 11-13As shown, the difference from the first to sixth embodiments is that a spiral track fast door with a detachable light curtain guide rail structure is installed, including a door body 60, a hinge wheel 70 and a detachable light curtain guide rail structure, the curtain plates of the spiral track fast door body 60 are hingedly connected by a connecting rod 601 and a hinge 602, and hinge wheels 70 are sleeved at both ends of the connecting rod 601. The hinge wheels 70 are rolled in the detachable light curtain guide rail structure to ensure that the door curtain 605 of the spiral track fast door body 60 is moved along the detachable light curtain guide rail structure. Linear lifting and lowering, the detachable light curtain guide rail structure is correspondingly arranged on both sides of the spiral track rapid door body 60. Through the detachable light curtain guide rail structure, when the hinge wheel 70 or the door curtain 605 of the spiral track rapid door body 60 needs to be repaired, it is only necessary to remove the guide rail II20 to perform the corresponding maintenance operation of the hinge wheel 70 or the door curtain 605 of the spiral track rapid door body 60. It is simple and convenient, and can effectively avoid the problem that the existing light curtain 302 guide rail is integrally formed and needs to be disassembled as a whole for maintenance, resulting in cumbersome operation.

[0074] Furthermore, the guide rail I10 in the detachable light curtain guide rail structure is fixed to the installation position of the spiral track fast door body 60 through the support plate 80.

[0075] Specifically, the guide rail I10 is fixedly connected to the support plate 80 by fixing screws, and the support plate 80 is fixed to the installation position of the spiral track fast door body 60 by bolts.

[0076] Furthermore, a light curtain track 90 is formed between the guide rail I 10 and the guide rail II 20 in the detachable light curtain guide rail structure, and the hinge wheel 70 can be arranged in the light curtain track 90 in a rolling manner in cooperation therewith.

[0077] Furthermore, the spiral track rapid door body 60 is configured to include a motor 603, a reel 604 and a door curtain 605. The motor 603 and the reel 604 are both supported in a cover shell through a support seat. The cover shell is fixed to the installation position of the spiral track rapid door body 60 by bolts. The motor 603 shaft output end of the motor 603 is connected to the reel 604. The upper end of the door curtain 605 is fixed on the reel 604. The door curtain 605 is composed of a plurality of groups of curtain plates adjacent to each other up and down. Both ends of the plurality of groups of curtain plates are fixed to hinges 602 by bolts. Both ends of the hinge 602 are sleeved on the connecting rod 601. Both ends of the connecting rod 601 can be fixedly sleeved with hinge wheels 70. The reel 604 is driven to rotate by the motor 603 to realize the winding or release of the door curtain 605 on the reel 604 to lift the door curtain 605. Among them, the specific structure, working principle, etc. of the spiral track rapid door body 60 are all existing technologies in the field. The present application does not improve its specific structure and working principle, so it will not be described in detail.

[0078] The use of the detachable light curtain guide rail structure provided by the present invention and the spiral track fast door installed with the guide rail structure is simple and practical. When repairing the light curtain 302 or the hinge wheel 70 for the spiral track fast door, only one side of the guide rail wall of the light curtain 302 guide rail needs to be removed to perform the corresponding maintenance operation. The disassembly and assembly is reliable and convenient, and the cost is low. The disassembly and assembly process of the light curtain 302 guide rail structure is as follows:

[0079] Taking the first embodiment as an example, in the light curtain installation cavity 30 between the longitudinal lower convex strip 1022 of the guide rail Ⅰ10 and the upper surface of the support portion 103, the light curtain 302 is fixed by the locking bolt 301, and then the guide rail Ⅱ20 is buckled on the guide rail Ⅰ10, so that the transverse overlapping surface Ⅱ201 of the guide rail Ⅱ20 is completely in contact with the transverse overlapping surface Ⅰ1011 of the guide rail Ⅰ10, and then the positioning groove 50 on the guide rail Ⅱ20 is used to position the installation of the self-tapping screw. Install the self-tapping screws, pass through the transverse overlapping surface II201 of guide rail II20 and the transverse overlapping surface I1011 of guide rail I10, and lock them in the overlapping portion 101 of guide rail I10, thereby completing the installation of guide rail I10, light curtain 302 and guide rail II20. When it is necessary to repair the light curtain 302, just remove the self-tapping screws, remove guide rail II20 from guide rail I10, and then disassemble and repair the light curtain 302. The operation is simple.

[0080] Taking the third embodiment as an example, in the light curtain installation cavity 30 between the longitudinal lower convex strip 1022 of the guide rail Ⅰ10 and the upper surface of the support portion 103, the light curtain 302 is fixed by the locking bolt 301, and then the guide rail Ⅱ20 is buckled on the guide rail Ⅰ10, so that the first limit clamping protrusion Ⅱ202 is clamped in the first limit clamping groove Ⅰ1012, and the limit clamping protrusion Ⅰ1013 is clamped in the limit clamping groove Ⅱ203, and the guide rail Ⅱ20 is horizontally positioned to prevent it from moving longitudinally, and to ensure that the horizontal overlap surface Ⅱ201 of the guide rail Ⅱ20 overlaps the horizontal overlap surface of the guide rail Ⅰ10 The guide rails Ⅱ20 and Ⅰ1011 are in contact with each other, and then the positioning groove 50 on the guide rail Ⅱ20 is used to locate the installation position of the self-tapping screw. The self-tapping screw is passed through the transverse overlapping surface Ⅱ201 of the guide rail Ⅱ20 and the transverse overlapping surface Ⅰ1011 of the guide rail Ⅰ10, and is locked and fixed in the overlapping portion 101 of the guide rail Ⅰ10, thereby completing the installation of the guide rail Ⅰ10, the light curtain 302 and the guide rail Ⅱ20. When the light curtain 302 needs to be repaired, it is only necessary to remove the self-tapping screw, remove the guide rail Ⅱ20 from the guide rail Ⅰ10, and then disassemble and repair the light curtain 302. The operation is simple.

[0081] Taking the sixth embodiment as an example, the light curtain 302 is fixed by the locking bolt 301 in the light curtain installation cavity 30 between the longitudinal lower convex strip 1022 of the guide rail Ⅰ10 and the upper surface of the support portion 103, and then the guide rail Ⅱ20 is pushed in from the side of the guide rail Ⅰ10, so that the second limit convex Ⅱ205 is clamped in the second limit groove Ⅰ1015, so as to position the light curtain 302 guide rail Ⅱ20 on the light curtain 302 guide rail Ⅰ10, limit the up and down movement of the light curtain 302 guide rail Ⅱ20, and ensure that the transverse overlapping surface Ⅱ201 of the guide rail Ⅱ20 contacts the transverse overlapping surface Ⅰ1011 of the guide rail Ⅰ10, and the vertical overlapping surface Ⅱ204 contacts the vertical overlapping surface Ⅰ1014, and then, according to the actual spacing between the studs Ⅰ402 and the studs Ⅱ404 (Wherein, stud Ⅰ402 is screwed and connected to guide rail Ⅰ10, and stud Ⅱ404 is screwed and connected to guide rail Ⅱ20), adjust the sleeve position of the slot 406 on stud Ⅱ404, and make the U-shaped notch 407 clamped on stud Ⅰ402. After adjustment, screw nut Ⅱ405 and nut Ⅰ403 to ensure that the locking plate 401 is locked on guide rail Ⅰ10 and guide rail Ⅱ20, thereby completing the installation of guide rail Ⅰ10, light curtain 302 and guide rail Ⅱ20. When it is necessary to repair the light curtain 302, it is only necessary to unscrew nut Ⅱ405 and nut Ⅰ403 to make the U-shaped notch 407 detach from stud Ⅰ402, and then push guide rail Ⅱ20 down from guide rail Ⅰ10, and then the light curtain 302 can be disassembled and repaired, which is easy to operate.

[0082] The disassembly and assembly process of the spiral track fast door with this guide rail structure is as follows:

[0083] Taking Example 7 as an example,

[0084] 1. Using the guide rail structure in the third embodiment, first select a suitable detachable light curtain guide rail structure according to the height and width of the spiral track rapid door body 60, and arrange two sets of detachable light curtain guide rail structures in a suitable manner at the installation position, that is, first fix the support plate 80 on the outer wall of the installation portion 102 of the guide rail I10 by bolts, then fix the support plate 80 of the guide rail I10 to the installation position of the spiral track rapid door body 60 by bolts, and fix the light curtain 302 in the light curtain installation cavity 30 between the longitudinal lower convex strip 1022 of the guide rail I10 and the upper surface of the support portion 103 by the locking bolt 301;

[0085] 2. Then assemble the spiral track fast door body 60 at its installation position (the specific assembly process and principle are the assembly method of the existing spiral track fast door body 60, which is not improved in this application and will not be described in detail), so that the hinge wheel 70 is matched in the light curtain track 90;

[0086] 3. Secondly, guide rail II20 is buckled on guide rail I10, so that the first limit clamping protrusion II202 is clamped in the first limit clamping groove I1012, and the limit clamping protrusion I1013 is clamped in the limit clamping groove II203, so as to position guide rail II20 transversely to prevent it from moving longitudinally, and ensure that the transverse overlapping surface II201 of guide rail II20 contacts the transverse overlapping surface I1011 of guide rail I10;

[0087] 4. After that, the self-tapping screw is positioned at the installation position by using the positioning groove 50 on the guide rail II 20, and the self-tapping screw is passed through the transverse overlapping surface II 201 of the guide rail II 20 and the transverse overlapping surface I 1011 of the guide rail I 10, and is locked and fixed in the overlapping portion 101 of the guide rail I 10, thereby completing the installation of the guide rail I 10, the light curtain 302, the hinge wheel 70 and the guide rail II 20;

[0088] When it is necessary to repair or maintain the light curtain 302 or the hinge wheel 70, it is only necessary to remove the self-tapping screws, remove the guide rail II 20 from the guide rail I 10, and then disassemble and inspect the light curtain 302 or the hinge wheel 70. The operation is simple and convenient, and effectively avoids the problem that the existing light curtain 302 guide rail is integrally formed, and the light curtain 302 needs to be disassembled as a whole when repairing it, resulting in cumbersome operation.

[0089] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of this patent.

Claims

1. A detachable light curtain guide rail structure, characterized in that: The invention comprises a guide rail I (10) and a guide rail II (20), wherein the guide rail II (20) is locked and fastened to the top of the guide rail I (10) through a locking member (40); the guide rail I (10) comprises a lap joint portion (101), a mounting portion (102) and a supporting portion (103), and a light curtain mounting cavity (30) is provided on the guide rail I (10); The overlapping portion (101) includes a transverse overlapping surface I (1011), and a transverse overlapping surface II (201) is provided on the guide rail II (20) corresponding to the transverse overlapping surface I (1011), the transverse overlapping surface II (201) is in contact with the transverse overlapping surface I (1011), and the locking member (40) passes through the transverse overlapping surface II (201) and is locked in the overlapping portion (101); A limit slot II (203) is provided on the transverse overlap surface II (201), and a limit convex I (1013) is provided on the transverse overlap surface I (1011) corresponding to the limit slot II (203), the limit convex I (1013) is matched and clamped in the limit slot II (203), the cross section of the limit convex I (1013) is a right-angle trapezoid, and the structure of the limit slot II (203) matches the structure of the limit convex I (1013); The locking member (40) is configured to include a locking plate (401), a stud I (402), a nut I (403), a stud Ⅱ (404) and nut Ⅱ (405), a slot (406) and a U-shaped notch (407) are vertically provided on the locking plate (401), the stud Ⅰ (402) cooperates to pass through the U-shaped notch (407) and is threadedly locked in the guide rail Ⅰ (10), the nut Ⅰ (403) is threadedly sleeved on the stud Ⅰ (402) to fix the locking plate (401) on the guide rail Ⅰ (10), the stud Ⅱ (404) cooperates to pass through the slot (406) and is threadedly locked in the guide rail Ⅱ (20), and the nut Ⅱ (405) is threadedly sleeved on the stud Ⅱ (404) to fix the locking plate (401) on the guide rail Ⅱ (20).

2. A detachable light curtain guide rail structure as claimed in claim 1, characterized in that: A longitudinal upper convex strip (1021) and a longitudinal lower convex strip (1022) are also correspondingly arranged on the inner side wall of the mounting portion (102); a fixing screw mounting cavity (1023) is formed between the longitudinal upper convex strip (1021) and the longitudinal lower convex strip (1022); and a light curtain mounting cavity (30) is formed between the longitudinal lower convex strip (1022) and the upper surface of the support portion (103).

3. A detachable light curtain guide rail structure as claimed in claim 1, characterized in that: A first limiting card slot I (1012) is provided on the transverse overlapping surface I (1011), and a first limiting card protrusion II (202) is provided on the transverse overlapping surface II (201) corresponding to the first limiting card slot I (1012), and the first limiting card protrusion II (202) is matched and locked in the first limiting card slot I (1012).

4. A detachable light curtain guide rail structure as claimed in claim 1, characterized in that: The overlapping portion (101) includes a transverse overlapping surface I (1011) and a vertical overlapping surface I (1014); the guide rail II (20) is provided with a transverse overlapping surface II (201) and a vertical overlapping surface II (204) correspondingly; the transverse overlapping surface I (1011) is in contact with the transverse overlapping surface II (201); the vertical overlapping surface I (1014) is in contact with the vertical overlapping surface II (204); the vertical overlapping surface A second limiting slot I (1015) is provided on the vertical overlap surface II (204) and corresponds to the second limiting slot I (1015). The second limiting slot II (205) is matched and locked in the second limiting slot I.

5. A detachable light curtain guide rail structure as claimed in claim 1 or 2, characterized in that: Positioning grooves (50) are provided on the wall surfaces of the overlapping portion (101) and the mounting portion (102) of the guide rail II (20) and the guide rail I (10).

6. A detachable light curtain guide rail structure as claimed in claim 1 or 2, characterized in that: The locking member (40) may be configured as a self-tapping screw.

7. A spiral track fast door equipped with the detachable light curtain guide rail structure according to any one of claims 1 to 6, characterized in that: The invention comprises a spiral track fast door body (60), a hinge wheel (70) and a detachable light curtain guide rail structure; the curtain plates of the spiral track fast door body (60) are hingedly connected by a connecting rod (601) and a hinge (602); hinge wheels (70) are sleeved on both ends of the connecting rod (601); the hinge wheels (70) are rotatably arranged in the detachable light curtain guide rail structure; and the detachable light curtain guide rail structure is correspondingly arranged on both sides of the spiral track fast door body (60).

8. A spiral track fast door with a detachable light curtain guide rail structure as claimed in claim 7, characterized in that: The guide rail I (10) in the detachable light curtain guide rail structure is fixed to the installation position of the spiral track fast door body (60) through a support plate (80).

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