Focusing LED projection lamp adopting combined lamp body

Abstract

The invention discloses a focus-adjustable LED projection lamp adopting a combined lamp body, and solves the problem that an outer shell of the combined lamp body is arranged in a non-integral manner, so that water easily enters the shell to damage a projection element. The focus-adjustable LED projection lamp comprises a base, and a combined lamp body assembly is mounted on the base; the combined lamp body assembly comprises a middle shell rotationally installed on the inner side of the base, a front end cover is installed at one end of the middle shell through a bolt, a lens is installed on the front end cover, a rear end cover is installed on the other side of the middle shell through a bolt, and an adjusting projector is installed on the rear end cover. Mounting grooves are formed in the two ends of the middle shell and the sides, close to each other, of the front end cover and the rear end cover; in the working process, the temperature in the machine body rises, so that the piston block moves towards one side of the annular sealing gasket, air is pushed to enter the inner cavity and the annular air bag, the annular air bag expands, the outer wall of the annular air bag is tightly attached to the inner wall of the mounting groove, and therefore the sealing waterproof effect is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of projection lamps, and in particular relates to a focus-adjustable LED projection lamp using a combined lamp body. Background Art

[0002] The combined lamp body usually adopts a modular concept, and is composed of a light source module, a heat dissipation module, an optical lens module, a shell module, etc. The shell module is composed of a middle shell, a front cover and a rear cover. The light source module, the heat dissipation module and the optical lens module are all installed inside the middle shell, the front cover and the rear cover, which is convenient for equipment installation and projection. During installation, the middle shell, the front cover and the rear cover are all fixed with bolts, but there are the following defects: Since the outer shell of the combined lamp body is not an integral setting, there are gaps between the middle shell, the front cover and the rear cover. During use, external moisture may enter the shell through the gaps, thereby damaging the electronic components inside the shell and affecting the projection effect. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a focus-adjustable LED projection lamp using a combined lamp body, which effectively solves the problem that the outer shell of the combined lamp body is not set as an integral whole, which makes it easy for moisture to enter the shell and cause damage to the projection element.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a focus-adjustable LED projection lamp using a combined lamp body, comprising a base, on which a combined lamp body assembly is mounted; The combined lamp body assembly includes a middle shell body rotatably mounted on the inner side of the base, a front cover is bolted to one end of the middle shell body, a lens is mounted on the front cover, a rear cover is bolted to the other side of the middle shell body, an adjustment projector is mounted on the rear cover, mounting grooves are provided at both ends of the middle shell body and on the side where the front cover and the rear cover are close to each other, sealing and waterproof assemblies are respectively installed between the two ends of the middle shell body and the front cover and the rear cover, and heating drive assemblies are provided at both ends of the middle shell body and on the side where the front cover and the rear cover are close to each other; The sealing and waterproof component includes an annular sealing gasket, annular airbags are symmetrically installed on both sides of the annular sealing gasket, the annular airbags correspond to the installation grooves, an internal cavity is opened inside the annular sealing gasket, connecting holes are evenly opened on both sides of the internal cavity, the connecting holes are connected to the inner cavity of the annular airbag, transverse grooves are symmetrically and evenly opened on both sides of the internal cavity, connecting card units are installed inside the transverse grooves, and a limited position tensioning unit is arranged between the two connecting card units.

[0005] Preferably, the connecting card connection unit includes a transverse tube movably installed inside the transverse groove, the outer wall of the transverse tube is in close contact with the inner wall of the transverse groove, end pads are installed at the ends of the two transverse tubes close to each other, and a longitudinal tube is fixedly installed inside the transverse tube, the inner cavity of the longitudinal tube is connected to the top of the transverse tube, and longitudinal grooves are symmetrically opened on the side walls of the longitudinal tube, and the two longitudinal grooves face the two ends of the transverse tube respectively.

[0006] Preferably, a clamping block is movably installed inside the longitudinal tube, a pressure inclined surface is provided at one end of the inner side of the clamping block close to the annular sealing gasket, a slide is fixedly installed at one end of the clamping block close to the end pad, the slide is slidably connected to the longitudinal groove, a return spring is fixedly installed on one side of the slide close to the inner side of the annular sealing gasket, and one end of the return spring is fixedly connected to the inner wall of the transverse tube.

[0007] Preferably, the limit tensioning unit includes a fixed box evenly installed on the inner side of the annular sealing gasket, the fixed box is arranged between the two transverse tubes, and the fixed box is communicated with the internal cavity, a piston plate is movably installed inside the fixed box, a mounting box is fixedly installed on the side of the piston plate close to the internal cavity, limit blocks are symmetrically installed on both sides of the mounting box, the distance between the two limit blocks away from one end is the same as the width of the piston plate, the ends of the two limit blocks are respectively in contact with the surfaces of the two end pads, and connecting springs are symmetrically installed on the side of the piston plate away from the internal cavity, and the ends of the connecting springs are fixedly connected to the inner wall of the fixed box.

[0008] Preferably, a connecting block is movably installed inside the installation box, guide grooves are symmetrically provided on the inner walls on both sides of the installation box, guide blocks are symmetrically installed on both sides of the connecting block, the guide blocks are slidably connected to the guide grooves, and a tensioning spring is symmetrically installed on one side of the guide block away from the piston plate, and one end of the tensioning spring is fixedly connected to the inner wall at the end of the guide groove.

[0009] Preferably, two connecting rods are symmetrically hingedly mounted on one side of the connecting block away from the piston plate, and the other ends of the two connecting rods are hingedly mounted to the two end pads respectively.

[0010] Preferably, the heat-generating drive assembly includes partitions installed at both ends of the middle shell and on the side where the front cover and the rear cover are close to each other, and positioning grooves are evenly arranged on the partitions, the positioning grooves correspond to the transverse tubes one by one, the inner diameter of the positioning grooves is the same as the inner diameter of the transverse grooves, and a clamping groove is arranged on the inner wall of the positioning groove. After the transverse tube is inserted into the positioning groove, the outer wall of the transverse tube is tightly attached to the inner wall of the positioning groove, and the clamping block corresponds to the clamping groove.

[0011] Preferably, a heating box is evenly installed on the side of the partition away from the annular sealing gasket, the heating box corresponds to the positioning groove one by one, the heating box is connected to the positioning groove, and a heat conducting plate is evenly installed on the outer wall of the heating box, and the heat conducting plate is used to transfer heat to the inside of the heating box.

[0012] Preferably, a piston block is movably installed inside the heating box, the outer wall of the piston block is in close contact with the inner wall of the heating box, a push rod is installed on the side of the piston block close to the positioning groove, the push rod is coaxially arranged with the positioning groove, the end of the push rod is arranged in a hemispherical shape, and a side spring is symmetrically installed on the side of the piston block close to the positioning groove, one end of the side spring is fixedly connected to the inner wall of the end of the heating box.

[0013] Preferably, the adjustable projector includes a projection module fixedly mounted on the side of the rear end cover close to the middle shell, a convex lens is provided on one side of the projection module, connecting frames are symmetrically installed on both sides of the convex lens, a guide rod is fixedly mounted on the side of the rear end cover close to the middle shell, the guide rod is slidably connected to one of the connecting frames, a screw is rotatably mounted on the rear end cover, the screw is separately connected to another connecting frame, the convex lens is arranged on the inner side of the lens, and a knob is installed on the end of the screw located at the rear end cover away from the outer side of the middle shell.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1) During operation, two annular sealing pads are respectively arranged between the middle housing and the front cover and the rear cover to seal and waterproof, so that the transverse tube is inserted into the positioning groove. When the temperature inside the body rises, the piston block moves toward one side of the annular sealing pad, pushing air into the internal cavity and the annular airbag, so that the annular airbag expands and its outer wall is tightly attached to the inner wall of the installation groove, thereby improving the sealing and waterproof effect; 2) During operation, the piston block moves toward one side of the annular sealing gasket, so that the push rod passes through the longitudinal groove and is inserted into the longitudinal tube, so that the end of the push rod generates pressure on the pressure inclined surface of the end of the clamping block, thereby pushing the clamping block to move outward, so that the clamping block is clamped into the inside of the clamping groove, thereby fixing the middle shell, the front cover and the rear cover, and improving the sealing and fixing effect; 3) During operation, the fixed box is connected to the internal cavity. When air enters the internal cavity, the piston plate is pushed toward the fixed box, so that the limit block enters the fixed box, and the end of the limit block is out of contact with the surface of the end pad, which is convenient for pulling the two transverse tubes closer to each other, and is convenient for sealing and waterproofing; 4) During operation, when the piston plate moves toward the inside of the fixed box, the end of the limit block is out of contact with the end pad, and the distance between the piston plate and the connecting block increases, so that the tensioning spring is stretched. Under the elastic force of the tensioning spring, the two connecting rods generate a pulling force to approach each other for the two transverse tubes, and at the same time, the connecting blocks on the transverse tubes are inserted into the slots, thereby increasing the clamping force between the middle shell, the front cover, the rear cover and the two annular sealing gaskets, and improving the sealing and waterproof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0016] In the attached picture: Figure 1 This is a schematic structural diagram of an adjustable focus LED projection lamp using a combined lamp body according to the present invention; Figure 2 It is a schematic diagram of the structure of the combined lamp body assembly of the present invention; Figure 3 It is a schematic diagram of the structure of the adjustable projector of the present invention; Figure 4 It is a schematic diagram of the structure of the annular sealing gasket of the present invention; Figure 5 It is a schematic diagram of the internal structure of the internal cavity of the present invention; Figure 6 For the present invention Figure 6 The enlarged structural diagram at A in the middle; Figure 7 It is a schematic diagram of the structure of the limiting tensioning unit of the present invention; Figure 8 It is a schematic diagram of the structure of the connecting card connection unit of the present invention; Fig. 9 It is a schematic diagram of the structure of the heat-generating drive component of the present invention; Fig.10 It is a schematic diagram of the structure of the heating box of the present invention.

[0017] In the figure: 1, base; 2, combined lamp body assembly; 201, middle shell; 202, front cover; 203, lens; 204, rear cover; 205, adjusting projector; 2051, projection module; 2052, convex lens; 2053, connecting frame; 2054, guide rod; 2055, screw rod; 2056, knob; 206, mounting groove; 3, sealing and waterproof assembly; 301, annular sealing gasket; 302, annular airbag; 303, internal cavity; 304, connecting hole; 305, transverse groove; 306, connecting card connection unit; 3061, transverse tube; 3062, end pad; 3063, longitudinal tube; 306 4. Longitudinal groove; 3065. Clamping block; 3066. Pressure inclined surface; 3067. Slide plate; 3068. Return spring; 307. Connecting rod; 308. Limiting and tensioning unit; 3081. Fixing box; 3082. Piston plate; 3083. Mounting box; 3084. Limiting block; 3085. Connecting spring; 3086. Connecting block; 3087. Guide groove; 3088. Guide block; 3089. Tensioning spring; 4. Heating drive assembly; 401. Partition plate; 402. Positioning groove; 403. Heating box; 404. Heat conducting plate; 405. Piston block; 406. Side spring; 407. Push rod; 408. Clamping groove. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] Depend on Figure 1-10 The present invention relates to a focus-adjustable LED projection lamp using a combined lamp body, comprising a base 1, on which a combined lamp body assembly 2 is mounted; The combined lamp body assembly 2 includes a middle shell 201 rotatably mounted on the inner side of the base 1, a front end cover 202 is bolted to one end of the middle shell 201, a lens 203 is mounted on the front end cover 202, a rear end cover 204 is bolted to the other side of the middle shell 201, an adjustment projector 205 is mounted on the rear end cover 204, mounting grooves 206 are provided at both ends of the middle shell 201 and on the side where the front end cover 202 and the rear end cover 204 are close to each other, sealing and waterproof components 3 are installed between the two ends of the middle shell 201 and the front end cover 202 and the rear end cover 204 respectively, heating drive components 4 are provided at both ends of the middle shell 201 and on the side where the front end cover 202 and the rear end cover 204 are close to each other, and the adjustment projector 205 is mounted on the rear end cover 204. The projector 205 includes a projection module 2051 fixedly mounted on the side of the rear end cover 204 close to the middle shell 201, a convex lens 2052 is arranged on one side of the projection module 2051, connecting frames 2053 are symmetrically installed on both sides of the convex lens 2052, a guide rod 2054 is fixedly mounted on the side of the rear end cover 204 close to the middle shell 201, the guide rod 2054 is slidably connected to one of the connecting frames 2053, a screw 2055 is rotatably mounted on the rear end cover 204, the screw 2055 is separately connected to the other connecting frame 2053, the convex lens 2052 is arranged on the inner side of the lens 203, and a knob 2056 is installed on the end of the screw 2055 located on the rear end cover 204 away from the outer side of the middle shell 201.

[0020] The sealing and waterproof component 3 includes an annular sealing gasket 301, annular airbags 302 are symmetrically installed on both sides of the annular sealing gasket 301, and the annular airbags 302 correspond to the installation groove 206. An internal cavity 303 is opened inside the annular sealing gasket 301, and connecting holes 304 are evenly opened on both sides of the internal cavity 303. The connecting holes 304 are connected to the inner cavity of the annular airbag 302, and transverse grooves 305 are symmetrically and evenly opened on both sides of the internal cavity 303. A connecting clamping unit 306 is installed inside the transverse groove 305, and a limited tensioning unit 308 is arranged between the two connecting clamping units 306; The connecting card unit 306 includes a transverse tube 3061 movably installed inside the transverse groove 305, the outer wall of the transverse tube 3061 is in close contact with the inner wall of the transverse groove 305, and the ends of the two transverse tubes 3061 close to each other are both installed with end pads 3062, and the interior of the transverse tube 3061 is fixedly installed with a longitudinal tube 3063, the inner cavity of the longitudinal tube 3063 is connected to the top of the transverse tube 3061, and the side wall of the longitudinal tube 3063 is symmetrically provided with longitudinal grooves 3064, and the two longitudinal grooves 3064 are respectively facing the transverse tube 3061. 61, a clamping block 3065 is movably installed inside the longitudinal tube 3063, and a pressure inclined surface 3066 is provided at one end of the inner side of the clamping block 3065 close to the annular sealing gasket 301, and a slide plate 3067 is fixedly installed at one end of the clamping block 3065 close to the end pad 3062, and the slide plate 3067 is slidably connected to the longitudinal groove 3064. A return spring 3068 is fixedly installed on one side of the slide plate 3067 close to the inner side of the annular sealing gasket 301, and one end of the return spring 3068 is fixedly connected to the inner wall of the transverse tube 3061.

[0021] The limiting tensioning unit 308 includes a fixed box 3081 evenly installed on the inner side of the annular sealing gasket 301, the fixed box 3081 is arranged between the two horizontal tubes 3061, and the fixed box 3081 is communicated with the internal cavity 303, a piston plate 3082 is movably installed inside the fixed box 3081, a mounting box 3083 is fixedly installed on one side of the piston plate 3082 close to the internal cavity 303, limiting blocks 3084 are symmetrically installed on both sides of the mounting box 3083, the distance between the two limiting blocks 3084 at one end away from each other is the same as the width of the piston plate 3082, the ends of the two limiting blocks 3084 are in contact with the surfaces of the two end pads 3062 respectively, the fixed box 3081 is communicated with the internal cavity 303, when air enters the internal cavity 303, the piston plate 3082 is pushed to move toward the fixed box 3081, so that the limiting block 3084 enters the fixed box 3081, so that the end of the limiting block 3084 is in contact with the end pad 3062 The surfaces are out of contact, which facilitates the pulling force that brings the two horizontal tubes 3061 closer to each other, and facilitates sealing and waterproofing. A connecting spring 3085 is symmetrically installed on the side of the piston plate 3082 away from the internal cavity 303, and the end of the connecting spring 3085 is fixedly connected to the inner wall of the fixed box 3081. A connecting block 3086 is movably installed inside the installation box 3083. Guide grooves 3087 are symmetrically opened on the inner walls of both sides of the installation box 3083. Guide blocks 3088 are symmetrically installed on both sides of the connecting block 3086. The guide blocks 3088 are slidably connected to the guide grooves 3087. A tensioning spring 3089 is symmetrically installed on the side of the guide block 3088 away from the piston plate 3082, and one end of the tensioning spring 3089 is fixedly connected to the inner wall of the end of the guide groove 3087. Two connecting rods 307 are symmetrically hingedly installed on the side of the connecting block 3086 away from the piston plate 3082, and the other ends of the two connecting rods 307 are respectively hingedly installed with the two end pads 3062.

[0022] The heat-generating drive assembly 4 includes a partition 401 installed at both ends of the middle shell 201 and on the side where the front cover 202 and the rear cover 204 are close to each other. Positioning grooves 402 are evenly opened on the partition 401. The positioning grooves 402 correspond to the transverse tubes 3061 one by one. Two annular sealing gaskets 301 are respectively arranged between the middle shell 201 and the front cover 202 and the rear cover 204 to perform sealing and waterproofing, so that the transverse tube 3061 is inserted into the positioning groove 402. When the internal temperature of the body rises, the piston block 405 moves toward the side of the annular sealing gasket 301, pushing air into the internal cavity 303 and the annular airbag 302, so that the annular airbag 302 expands so that its outer wall is tightly attached to the inner wall of the installation groove 206, thereby improving the sealing and waterproofing. The inner diameter of the positioning groove 402 is the same as the inner diameter of the transverse groove 305, and a card slot 408 is opened on the inner wall of the positioning groove 402. After the transverse tube 3061 is inserted into the positioning groove 402, the outer wall of the transverse tube 3061 is tightly attached to the inner wall of the positioning groove 402, and the card block 3065 corresponds to the card slot 408. A heating box 403 is evenly installed on the side of the partition 401 away from the annular sealing gasket 301. The heating box 403 corresponds to the positioning groove 402 one by one, and the heating box 403 is connected to the positioning groove 402. A heat conducting plate 404 is evenly installed on the outer wall of the heating box 403. The heat conducting plate 404 is used to transfer heat to the inside of the heating box 403. A piston block 405 is movably installed inside the heating box 403. The outer wall of the piston block 405 is in contact with the heating box The inner wall of 403 is tightly attached, and a push rod 407 is installed on the side of the piston block 405 close to the positioning groove 402. The push rod 407 is coaxially arranged with the positioning groove 402, and the end of the push rod 407 is arranged to be hemispherical. During the movement of the piston block 405 toward the side of the annular sealing gasket 301, the push rod 407 passes through the longitudinal groove 3064 and is inserted into the longitudinal tube 3063, so that the end of the push rod 407 generates pressure on the pressure inclined surface 3066 at the end of the clamping block 3065, thereby pushing the clamping block 3065 to move outward, so that the clamping block 3065 is clamped into the inside of the clamping groove 408, thereby fixing the middle shell 201, the front end cover 202 and the rear end cover 204, improving the sealing and fixing effect, and the piston block 405 is symmetrically arranged on the side close to the positioning groove 402 A side spring 406 is installed, one end of which is fixedly connected to the inner wall of the end of the heating box 403. When the piston plate 3082 moves toward the inside of the fixed box 3081, the end of the limit block 3084 is out of contact with the end pad 3062, and the distance between the piston plate 3082 and the connecting block 3086 increases, so that the tensioning spring 3089 is stretched. Under the elastic force of the tensioning spring 3089, the two connecting rods 307 generate a pulling force to approach each other for the two transverse tubes 3061, and at the same time, the clamping block 3065 on the transverse tube 3061 is inserted into the inside of the clamping groove 408, thereby increasing the pressing force between the middle shell 201, the front cover 202, the rear cover 204 and the two annular sealing gaskets 301, and improving the sealing and waterproof effect.

[0023] Working principle: During installation, the front end cover 202 is bolted to one end of the middle shell 201, and the rear end cover 204 is bolted to the other end of the middle shell 201, so that the convex lens 2052 is installed inside the lens 203. During installation, an annular sealing gasket 301 is installed between the middle shell 201 and the front end cover 202 and between the middle shell 201 and the rear end cover 204, so as to seal and waterproof the inside of the combined lamp body shell. When adjusting the focal length, the knob 2056 is turned to rotate the screw rod 2055. Since the screw rod 2055 is threadedly connected to the connecting frame 2053 on one side of the convex lens 2052, the convex lens 2052 is driven to move inside the lens 203, so as to adjust the distance between the convex lens 2052 and the emission end of the projection module 2051, thereby completing the focal length adjustment; When installing the annular seal 301, the annular airbags 302 on both sides of the annular seal 301 are respectively arranged in the installation grooves 206 on both sides. After the annular seal 301 is pressed, the middle shell 201 and the front cover 202 and the middle shell 201 and the rear cover 204 are sealed and waterproof, and the transverse tube 3061 is inserted into the positioning groove 402, so that the outer wall of the transverse tube 3061 is in close contact with the inner wall of the positioning groove 402. As the machine body generates heat during operation, the heat is transferred to the inside of the heating box 403 through the heat conducting plate 404, so that the air inside the heating box 403 on the side of the piston block 405 away from the annular sealing gasket 301 expands, thereby pushing the piston block 405 to move toward the side of the annular sealing gasket 301, pushing a certain amount of air in the heating box 403 to enter the internal cavity 303 and the annular airbag 302 through the transverse tube 3061, so that the annular airbag 302 expands outwards so that its outer wall is in close contact with the inner wall of the mounting groove 206, further improving the sealing and waterproofing effect. At the same time, the movement of the piston block 405 causes the push rod 407 to move toward the side of the clamping block 3065, generating pressure on the pressure inclined surface 3066, pushing the clamping block 3065 to move outward along the longitudinal tube 3063, so that the clamping block 3065 is clamped into the inside of the clamping groove 408, further fixing the annular sealing gasket 301, and improving the waterproofing effect. When the annular airbag 302 expands to its limit, the air pressure in the internal cavity 303 increases, pushing the piston plate 3082 toward the inside of the fixed box 3081, so that the limit block 3084 is separated from the surface of the end pad 3062. After the piston plate 3082 moves, the tensioning spring 3089 is stretched, and under the elastic force of the tensioning spring 3089, a pulling force is generated on the connecting block 3086 toward the side of the fixed box 3081, and a pulling force is generated between the connecting block 3086 and the transverse tubes 3061 on both sides, and the clamping block 3065 on the transverse tube 3061 is inserted into the clamping groove 408, thereby generating a pulling force that compresses the middle shell 201 and the front end cover 202 as well as the middle shell 201 and the rear end cover 204, further improving the sealing and waterproof performance between the middle shell 201, the front end cover 202 and the rear end cover 204.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A focus-adjustable LED projection lamp using a combined lamp body, comprising a base (1), characterized in that: A combined lamp body assembly (2) is mounted on the base (1); The combined lamp body assembly (2) comprises a middle shell (201) rotatably mounted on the inner side of a base (1); a front cover (202) is bolted to one end of the middle shell (201); a lens (203) is mounted on the front cover (202); a rear cover (204) is bolted to the other side of the middle shell (201); an adjustment projector (205) is mounted on the rear cover (204); mounting grooves (206) are provided at both ends of the middle shell (201) and on a side where the front cover (202) and the rear cover (204) are close to each other; sealing and waterproof assemblies (3) are respectively mounted between both ends of the middle shell (201) and the front cover (202) and the rear cover (204); and a heat-generating drive assembly (4) is provided at both ends of the middle shell (201) and on a side where the front cover (202) and the rear cover (204) are close to each other. The sealing and waterproofing assembly (3) comprises an annular sealing gasket (301), annular airbags (302) are symmetrically mounted on both sides of the annular sealing gasket (301), the annular airbags (302) correspond to the mounting grooves (206), an internal cavity (303) is provided inside the annular sealing gasket (301), connecting holes (304) are evenly provided on both sides of the internal cavity (303), the connecting holes (304) are connected to the internal cavity of the annular airbag (302), transverse grooves (305) are symmetrically and evenly provided on both sides of the internal cavity (303), connecting clamping units (306) are mounted inside the transverse grooves (305), and a limited tensioning unit (308) is provided between the two connecting clamping units (306).

2. The focus-adjustable LED projection lamp using a combined lamp body according to claim 1, characterized in that: The connecting card connection unit (306) comprises a transverse tube (3061) movably mounted inside the transverse groove (305); the outer wall of the transverse tube (3061) is in close contact with the inner wall of the transverse groove (305); end pads (3062) are mounted on the ends of the two transverse tubes (3061) that are close to each other; a longitudinal tube (3063) is fixedly mounted inside the transverse tube (3061); the inner cavity of the longitudinal tube (3063) is connected to the top of the transverse tube (3061); longitudinal grooves (3064) are symmetrically arranged on the side wall of the longitudinal tube (3063); and the two longitudinal grooves (3064) are respectively oriented towards the two ends of the transverse tube (3061).

3. The focus-adjustable LED projection lamp using a combined lamp body according to claim 2, characterized in that: A clamping block (3065) is movably installed inside the longitudinal tube (3063); a pressure-bearing inclined surface (3066) is provided at one end of the clamping block (3065) close to the inner side of the annular sealing gasket (301); a sliding plate (3067) is fixedly installed at one end of the clamping block (3065) close to the end pad (3062); the sliding plate (3067) is slidably connected to the longitudinal groove (3064); a return spring (3068) is fixedly installed on one side of the sliding plate (3067) close to the inner side of the annular sealing gasket (301); one end of the return spring (3068) is fixedly connected to the inner wall of the transverse tube (3061).

4. The focus-adjustable LED projection lamp using a combined lamp body according to claim 2, characterized in that: The position limiting tensioning unit (308) comprises a fixed box (3081) uniformly mounted on the inner side of the annular sealing gasket (301); the fixed box (3081) is arranged between the two transverse tubes (3061), and the fixed box (3081) is connected to the internal cavity (303); a piston plate (3082) is movably mounted inside the fixed box (3081); a mounting box (3083) is fixedly mounted on one side of the piston plate (3082) close to the internal cavity (303); and the mounting box (3083) is fixedly mounted on the inner side of the piston plate (3082). Limiting blocks (3084) are symmetrically installed on both sides of the piston plate (3083), the distance between the ends of the two limiting blocks (3084) away from each other is the same as the width of the piston plate (3082), the ends of the two limiting blocks (3084) are respectively in contact with the surfaces of the two end pads (3062), and the side of the piston plate (3082) away from the internal cavity (303) is symmetrically installed with a connecting spring (3085), and the end of the connecting spring (3085) is fixedly connected to the inner wall of the fixing box (3081).

5. The focus-adjustable LED projection lamp using a combined lamp body according to claim 4, characterized in that: A connecting block (3086) is movably installed inside the installation box (3083), guide grooves (3087) are symmetrically provided on the inner walls on both sides of the installation box (3083), guide blocks (3088) are symmetrically installed on both sides of the connecting block (3086), the guide blocks (3088) are slidably connected to the guide grooves (3087), and a tensioning spring (3089) is symmetrically installed on one side of the guide block (3088) away from the piston plate (3082), and one end of the tensioning spring (3089) is fixedly connected to the inner wall of the end of the guide groove (3087).

6. The focus-adjustable LED projection lamp using a combined lamp body according to claim 5, characterized in that: Two connecting rods (307) are symmetrically hingedly mounted on one side of the connecting block (3086) away from the piston plate (3082), and the other ends of the two connecting rods (307) are hingedly mounted on the two end pads (3062) respectively.

7. The focus-adjustable LED projection lamp using a combined lamp body according to claim 2, characterized in that: The heat-generating drive assembly (4) comprises a partition (401) installed at both ends of the middle shell (201) and at a side where the front cover (202) and the rear cover (204) are close to each other. Positioning grooves (402) are evenly arranged on the partition (401). The positioning grooves (402) correspond to the transverse tubes (3061) one by one. The inner diameter of the positioning groove (402) is the same as the inner diameter of the transverse groove (305). A clamping groove (408) is arranged on the inner wall of the positioning groove (402). After the transverse tube (3061) is inserted into the positioning groove (402), the outer wall of the transverse tube (3061) is tightly attached to the inner wall of the positioning groove (402), and the clamping block (3065) corresponds to the clamping groove (408).

8. The focus-adjustable LED projection lamp using a combined lamp body according to claim 7, characterized in that: A heating box (403) is evenly installed on the side of the partition (401) away from the annular sealing gasket (301), the heating box (403) corresponds to the positioning groove (402) one by one, the heating box (403) is connected to the positioning groove (402), and a heat conducting plate (404) is evenly installed on the outer wall of the heating box (403), and the heat conducting plate (404) is used to transfer heat to the inside of the heating box (403).

9. The focus-adjustable LED projection lamp using a combined lamp body according to claim 8, characterized in that: A piston block (405) is movably installed inside the heating box (403), the outer wall of the piston block (405) is in close contact with the inner wall of the heating box (403), a push rod (407) is installed on the side of the piston block (405) close to the positioning groove (402), the push rod (407) is coaxially arranged with the positioning groove (402), the end of the push rod (407) is arranged in a hemispherical shape, and a side spring (406) is symmetrically installed on the side of the piston block (405) close to the positioning groove (402), one end of the side spring (406) is fixedly connected to the inner wall of the end of the heating box (403).

10. The focus-adjustable LED projection lamp using a combined lamp body according to claim 1, characterized in that: The adjustable projector (205) comprises a projection module (2051) fixedly mounted on a side of a rear end cover (204) close to a middle shell (201); a convex lens (2052) is arranged on one side of the projection module (2051); connecting frames (2053) are symmetrically mounted on both sides of the convex lens (2052); a guide rod (2054) is fixedly mounted on a side of the rear end cover (204) close to the middle shell (201); the guide rod (2054) is slidably connected to one of the connecting frames (2053); a screw rod (2055) is rotatably mounted on the rear end cover (204); the screw rod (2055) is separately connected to another connecting frame (2053); the convex lens (2052) is arranged on the inner side of the lens (203); and a knob (2056) is mounted on one end of the screw rod (2055) located on the outer side of the rear end cover (204) away from the middle shell (201).

Images