Fast-assembly transmission lock box for inner flat-opening lower suspension system

Abstract

The utility model relates to the technical field of building doors and windows, in particular to a fast-assembly transmission lock box for an inward side-hung underslung system, which is characterized in that a mounting groove is formed in the middle of an inner cavity of a shell A, an elastic device is mounted in the mounting groove, and a positioning steel ball is arranged at the top end of the elastic device; a gear is installed on the first shell and meshed with a transmission rack, and transmission teeth meshed with the gear are arranged on one side of the middle of the rack. After the second shell and the first shell are assembled, the two sets of semicircular limiting holes form a complete circular limiting hole, a fixing piece is arranged at the complete circular limiting hole, the first shell is provided with a sliding block installation hole, and the sliding block is arranged in the sliding block installation hole. The lock box has the advantages of being simple in structure, convenient to install, high in practicability, good in structural strength and wide in application range, and the size of the lock box is smaller under the condition of the same apocentric distance.

Description

Technical Field

[0001] The utility model relates to the technical field of building doors and windows, in particular to a quick-install transmission lock box for an inner casement bottom-hung system. Background Art

[0002] The transmission lock box used in the underslung casement system, which is common in the current construction field, needs to be installed with screws, which is labor-intensive and time-consuming. The lock box is installed with a vane, but the vane is exposed and unsightly. The market prefers fashionable and simple designs with large glass and narrow-side windows. Narrow-side windows reduce the installation space of the transmission lock box. The transmission distance of the traditional underslung casement system limits the minimum size of the lock box gear, resulting in a large size of the lock box. As a result, the transmission lock boxes on the market are unable to adapt to this type of material.

[0003] To this end, the present application designs a quick-install transmission lock box for an inner casement lower suspension system and solves the above-mentioned problems. Summary of the Invention

[0004] In order to make up for the deficiencies in the prior art, the utility model provides a quick-install transmission lock box for an inner casement lower suspension system.

[0005] A quick-install transmission lock box for an inner casement bottom-hung system, comprising a housing A and a housing B, characterized in that:

[0006] The two ends of the shell A are provided with limit grooves, the inner wall of the limit groove is provided with at least 2 limit ribs, and a semicircular limit hole is provided in the middle position of the limit groove; the middle position of the inner cavity of the shell A is provided with an installation groove, an elastic device is installed in the installation groove, and a positioning steel ball is provided on the top of the elastic device; the shell A is installed with a gear, the gear meshes with the transmission rack, and the middle side of the rack is provided with a transmission tooth that meshes with the gear; the two ends of the shell B are provided with limit grooves, the inner wall of the limit groove is provided with at least 2 limit ribs, and a semicircular limit hole is provided in the middle position of the limit groove; after the shell B and the shell A are assembled, the two groups of semicircular limit holes form a complete circular limit hole, and a fixing piece is provided at the center of the fixing piece. A circular boss is provided, and an inner hexagonal wrench hole is provided in the center of the circular boss; the shell A is provided with a slider mounting hole, and the slider is placed in the slider mounting hole.

[0007] Furthermore, in order to better realize the present invention, the gear adopts a gradual tooth height, and the gear has a middle tooth whose tooth height gradually decreases towards the edge teeth; the transmission teeth of the rack adopt a gradual tooth height, and the transmission tooth height gradually increases from the middle part to the two ends. The gear and the transmission tooth profile complement each other in meshing transmission, and the gear edge tooth height is reduced, which can effectively reduce the volume of the lock box and improve the adaptability range of the lock box.

[0008] Furthermore, in order to better realize the present invention, a positioning groove is provided in the middle of the rack on the side away from the transmission tooth. Under the action of the elastic device, the positioning steel ball elastically squeezes the rack to reduce the shaking of the rack. The rack slides to the middle position of the lock box, and the positioning steel ball presses against the positioning groove to realize the positioning function.

[0009] Furthermore, in order to better realize the present invention, at least one card slot is set on the side of the slider, and an anti-slip strip is provided in the card slot. The slider is inserted into the slider mounting hole of the outer shell armor, and the anti-slip strip forms elastic extrusion with the inner wall of the outer shell armor to prevent the slider from falling off.

[0010] The beneficial effects of the utility model are:

[0011] The utility model has a simple structure, and under the condition of the same side-to-center distance, the lock box of the utility model has a smaller volume, is easy to install, has strong practicality, has good structural strength, and is widely applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the outer shell structure of the present utility model;

[0013] Figure 2 This is a schematic diagram of the gear structure of the present utility model;

[0014] Figure 3 This is a schematic diagram of the rack structure of the present utility model;

[0015] Figure 4 This is a schematic structural diagram of the housing B of the present utility model;

[0016] Figure 5 This is a schematic diagram of the fixing structure of the utility model;

[0017] Figure 6 This is a schematic diagram of the slider structure of the utility model;

[0018] Figure 7 This is a schematic diagram of the explosion structure of the utility model;

[0019] Figure 8 It is a schematic diagram of the three-dimensional structure of the utility model.

[0020] In the figure,

[0021] 1. Housing A; 1.1 Mounting slot; 1.2 Limiting rib; 1.3 Limiting slot; 1.4 Limiting hole; 1.5 Slider mounting hole; 2. Elastic device; 3. Positioning steel ball; 4. Rack; 4.1 Positioning slot; 4.2 Transmission gear; 5. Housing B; 6. Gear; 6.1 Edge gear; 6.2 Intermediate gear; 7. Fixing piece; 7.1 Circular boss; 7.2 Raised structure; 8. Slider; 8.1 Slot; 9. Anti-slip strip. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings of the embodiments of the present invention to clearly and completely describe the technical solutions of the embodiments of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in a variety of different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0024] Figures 1-8 This is a specific embodiment of the utility model, which is a quick-install transmission lock box for an inner casement lower suspension system. The two ends of the shell armor 1 are provided with limit grooves 1.3, the inner wall of the limit groove 1.3 is provided with at least two limit ribs 1.2, and the middle position of the limit groove 1.3 is provided with a semicircular limit hole 1.4; the middle position of the inner cavity of the shell armor 1 is provided with a mounting groove 1.1, an elastic device 2 is installed in the mounting groove 1.1, and a positioning steel ball 3 is provided at the top of the elastic device 2; the shell armor 1 is installed with a gear 6, the gear 6 meshes with the transmission rack 4, and a meshing gear is provided on the middle side of the rack 4 Transmission teeth 4.2 of wheel 6; limiting grooves 1.3 are provided at both ends of shell B 5, at least two limiting ribs 1.2 are provided on the inner wall of the limiting groove 1.3, and a semicircular limiting hole 1.4 is provided in the middle position of the limiting groove 1.3; after shell B 5 and shell A 1 are assembled, the two groups of semicircular limiting holes 1.4 form a complete circular limiting hole, and a fixing piece 7 is provided at the complete circular limiting hole, and a circular boss 7.1 is provided at the center of the fixing piece 7, and an inner hexagonal wrench hole is provided at the center of the circular boss 7.1; the shell A 1 is provided with a slider mounting hole 1.5, and the slider 8 is placed in the slider mounting hole 1.5.

[0025] like Figure 2 Figure 3 As shown, the gear 6 adopts a gradual tooth height, and the gear 6 has an intermediate tooth 6.2 whose tooth height gradually decreases toward the edge tooth 6.1; the transmission teeth 4.2 of the rack 4 adopt a gradual tooth height, and the tooth height of the transmission teeth 4.2 gradually increases from the middle part to the two ends. The gear 6 and the transmission teeth 4.2 are complementary in tooth shape and mesh with each other for transmission. The reduction in the height of the edge teeth of the gear 6 can effectively reduce the volume of the lock box and improve the adaptability range of the lock box.

[0026] like Figure 3 Figure 7As shown, a positioning groove 4.1 is provided in the middle of the rack 4 on the side away from the transmission tooth 4.2. Under the action of the elastic device 2, the positioning steel ball 3 elastically squeezes the rack 4 to reduce the shaking of the rack 4. When the rack 4 slides to the middle position of the lock box, the positioning steel ball 3 presses against the positioning groove 4.1 to realize the positioning function.

[0027] like Figure 6 Figure 7 As shown, at least one slot 8.1 is provided on the side of the slider 8, and an anti-slip strip 9 is provided in the slot 8.1. The slider 8 is inserted into the slider mounting hole 1.5 of the shell A 1, and the anti-slip strip 9 forms elastic extrusion with the inner wall of the shell A 1 to prevent the slider from falling off.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A quick-install transmission lock box for an inner casement bottom hanging system, comprising a housing A (1) and a housing B (5), characterized in that: The housing A (1) is provided with limiting grooves (1.3) at both ends, the inner wall of the limiting groove (1.3) is provided with at least two limiting ribs (1.2), and a semicircular limiting hole (1.4) is provided in the middle of the limiting groove (1.3); a mounting groove (1.1) is provided in the middle of the inner cavity of the housing A (1), an elastic device (2) is installed in the mounting groove (1.1), and a positioning steel ball (3) is provided at the top of the elastic device (2); the housing A (1) is provided with a gear (6), the gear (6) meshes with a transmission rack (4), and a transmission tooth (4.2) meshing with the gear (6) is provided on the middle side of the rack (4); the housing B (5) Limiting grooves (1.3) are provided at both ends, at least two limiting ribs (1.2) are provided on the inner wall of the limiting groove (1.3), and a semicircular limiting hole (1.4) is provided in the middle of the limiting groove (1.3); after the housing B (5) and the housing A (1) are assembled, the two groups of semicircular limiting holes (1.4) form a complete circular limiting hole, a fixing piece (7) is provided at the location of the complete circular limiting hole, a circular boss (7.1) is provided at the center of the fixing piece (7), and a hexagonal wrench hole is provided at the center of the circular boss (7.1); the housing A (1) is provided with a slider mounting hole (1.5), and the slider (8) is placed in the slider mounting hole (1.5).

2. The quick-install transmission lock box for the inner casement lower suspension system according to claim 1, characterized in that: The gear (6) has a gradually changing tooth height, and the gear (6) has a middle tooth (6.2) whose tooth height gradually decreases toward the edge tooth (6.1); the transmission teeth (4.2) of the rack (4) have a gradually changing tooth height, and the tooth height of the transmission teeth (4.2) gradually increases from the middle portion toward both ends. The gear (6) and the transmission teeth (4.2) have complementary tooth shapes for meshing transmission. The reduced height of the edge teeth of the gear (6) can effectively reduce the volume of the lock box and improve the adaptability range of the lock box.

3. The quick-install transmission lock box for the inner casement lower suspension system according to claim 1, characterized in that: A positioning groove (4.1) is provided in the middle of the rack (4) on the side away from the transmission tooth (4.2). Under the action of the elastic device (2), the positioning steel ball (3) elastically squeezes the rack (4) to reduce the shaking amount of the rack (4). The rack (4) slides to the middle position of the lock box, and the positioning steel ball (3) presses against the positioning groove (4.1) to realize the positioning function.

4. The quick-install transmission lock box for the inner casement lower suspension system according to claim 1, characterized in that: At least one slot (8.1) is provided on the side of the slider (8), and an anti-slip strip (9) is provided in the slot (8.1). The slider (8) is inserted into the slider mounting hole (1.5) of the housing (1), and the anti-slip strip (9) forms elastic extrusion with the inner wall of the housing (1) to prevent the slider from falling off.

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