A hot melt
By installing detachable auxiliary support legs and support frames on the hot melter handle, the problem of easy loss of the support frame is solved, achieving stable support and convenient operation, and improving the safety and convenience of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG SHARP AX TECHNOLOGY CO LTD
- Filing Date
- 2025-08-09
- Publication Date
- 2026-07-17
AI Technical Summary
The existing support structure of the hot melt machine is prone to accidental loss, affecting normal use.
A hot melt machine was designed with a handle equipped with a detachable auxiliary support leg and a support frame. The auxiliary support leg can be unfolded to support or folded to one side of the grip. Stability and convenient operation are ensured through structures such as positioning grooves, positioning parts, and limiting walls.
The auxiliary support legs will not be lost accidentally, provide more stable support, are easy to store and transport, and improve the safety and convenience of use.
Smart Images

Figure CN224510456U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of hot melt equipment technology, and specifically relates to a hot melt equipment. Background Technology
[0002] A hot melt welder is a specialized welding tool primarily used for seamless connections of thermoplastic pipes and fittings.
[0003] To facilitate user operation, most common hot melt machines are equipped with support frames. For example, Chinese Utility Model Patent CN 202320553466.9 discloses a support structure for a hot melt machine, which includes: a hot melt machine body, the hot melt machine body including a handle, an electrical box disposed on one side of the handle, a radiator disposed on one side of the electrical box, and a heating plate disposed on one side of the radiator; a heating film head, the heating film head being detachably disposed on the heating plate; wherein, it also includes a support structure installed at the bottom of the electrical box, the support structure being used to support the hot melt machine body; the support structure includes: a positioning plate disposed on the electrical box, the positioning plate having a slot; a support body, the support body including support legs and connecting blocks disposed on the support legs, the connecting blocks having plug connectors; wherein, the plug connectors are adapted to the slots, and the plug connectors and slots are detachably connected.
[0004] In the above structure, the bracket body is inserted into the positioning plate on the electrical box. During the use of the hot melt machine, the user can control the bracket body and the electrical box to flexibly disassemble and connect. However, since workers often change work locations, the bracket body is easily lost by accident, which affects the normal use of the hot melt machine. Summary of the Invention
[0005] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a hot melter that is convenient for users to use.
[0006] The purpose of this utility model is achieved as follows:
[0007] A hot melt machine includes a handle and a heating block, with a heat insulation device between the handle and the heating block. The handle has a connecting part and a grip for the user to hold. The heat insulation device is detachably mounted on the connecting part. An auxiliary support leg is rotatably mounted on the connecting part. The auxiliary support leg can be unfolded toward the side of the grip and support the grip. The auxiliary support leg can also be flipped and folded to one side of the grip and used as a hand guard.
[0008] The present invention is further configured such that: a support frame is detachably provided on the connecting part, the support frame can support the handle part and suspend the auxiliary support leg in the air.
[0009] The present invention is further configured such that: the connecting part is provided with two sets of positioning parts, and the auxiliary support leg is provided with positioning grooves adapted to the positioning parts. The positioning grooves on the auxiliary support leg can cooperate with the two sets of positioning parts respectively and keep the auxiliary support leg and the handle part in an unfolded state and a folded state.
[0010] The present invention is further configured such that: a swing groove is provided on the connecting part, one end of the auxiliary support leg passes through the swing groove, and a limiting wall is provided on both sides of the swing groove. The limiting wall can limit the rotation range of the auxiliary support leg, and when the auxiliary support leg abuts against the limiting wall on both sides of the swing groove, the positioning groove on the auxiliary support leg can cooperate with the two sets of positioning parts on the connecting part respectively.
[0011] The present invention is further configured such that: both sets of positioning parts are provided with arc-shaped surfaces on their sides; under the action of external force, the side of the positioning groove can be guided along the arc-shaped surface and detached from the positioning part, thereby allowing it to rotate relative to the connecting part.
[0012] The present invention is further configured such that: two sets of auxiliary support legs are rotatably provided on the connecting part, and the two sets of auxiliary support legs can be rotated and unfolded to both sides of the handle to support the handle.
[0013] The present invention is further configured such that: the connecting part is provided at the front end of the handle part, and the rear end of the handle part is provided with an anti-slip protrusion, which can work together with the two sets of auxiliary support legs to support the handle.
[0014] The present invention is further configured such that: the anti-slip protrusion and the lower side of the auxiliary support leg are respectively provided with an arc-shaped first abutting surface and a second abutting surface, and when the auxiliary support leg and the handle are unfolded relative to each other, the first abutting surface and the second abutting surface on the two auxiliary support legs are triangularly distributed.
[0015] The present invention is further configured such that: the auxiliary support leg is provided with a groove corresponding to the anti-slip protrusion, and after the auxiliary support leg is folded to one side of the handle, the anti-slip protrusion passes into the groove.
[0016] The present invention is further configured such that: a lighting lamp is provided at one end of the connecting part near the heating block, the lighting lamp can illuminate the heating block, and a control switch electrically connected to the lighting lamp is provided on the handle.
[0017] The advantages of this utility model compared to the prior art are:
[0018] 1. The auxiliary support leg, which is rotatably mounted on the connecting part in this utility model, will not be accidentally lost, making it convenient for users to use for a long time. When the user does not need the auxiliary support leg, the auxiliary support leg can be folded to the handle side, making it convenient for the hot melt machine to be stored, moved, and transported. Furthermore, since the auxiliary support leg can be folded to the handle side and used as a hand guard, it helps to improve the safety of the hot melt machine and makes it more convenient for users to use.
[0019] 2. In this utility model, compared with the auxiliary support leg that is rotated, the support frame provides more stability. Users can flexibly choose the support method according to their needs, making it convenient for users to use.
[0020] 3. The positioning groove and two sets of positioning parts in this utility model facilitate the auxiliary support leg and the handle to remain in the unfolded and folded state, preventing accidental rotation of the auxiliary support leg and the handle during use or storage and transportation. This facilitates the stable placement of the hot melt and the storage and transportation of the hot melt, making it convenient for users. The swing groove facilitates the stable rotation of the auxiliary support leg, while the limiting walls on both sides of the swing groove facilitate the quick unfolding or folding of the auxiliary support leg to the designated position, making it convenient for users. The arc-shaped surface facilitates the connection and cooperation between the positioning part and the positioning groove, making it convenient for users to control the relative unfolding and folding of the auxiliary support leg and the handle, making it convenient for users.
[0021] 4. The two sets of auxiliary support legs that can be rotated and unfolded to both sides of the handle in this utility model facilitate the stable placement of the hot melt machine, prevent it from tilting to the sides, and make it convenient for the user to use; the anti-slip protrusions make it easy for the user to grip the handle firmly, prevent the hot melt machine from accidentally slipping out of their hand, and make it convenient for the user to use. In addition, the anti-slip protrusions can work together with the two sets of auxiliary support legs to support the handle, making it convenient for the user to place the hot melt machine stably; the arc-shaped first and second abutting surfaces make it easy for the user to place the hot melt machine on uneven ground, making it convenient for the user to place the hot melt machine stably.
[0022] 5. The groove in this utility model facilitates a tight connection between the auxiliary support leg and the anti-slip protrusion, preventing the auxiliary support leg from getting caught on other items after folding, thus making it convenient for the user to use; the lighting and control switch make it convenient for the user to illuminate the heating block, observe the heating block, and use the heat melter. Attached Figure Description
[0023] Figure 1 This is one of the structural schematic diagrams of this utility model when it is supported by a support frame;
[0024] Figure 2 This is the second structural schematic diagram of the present invention when supported by a support frame;
[0025] Figure 3 This is one of the structural schematic diagrams of this utility model when using auxiliary support legs for support;
[0026] Figure 4 This is the second structural schematic diagram of the present invention when using auxiliary support legs for support;
[0027] Figure 5 This is the third schematic diagram of the structure of this utility model when using auxiliary support legs for support;
[0028] Figure 6 This is an exploded view of the present invention;
[0029] Figure 7 This is a schematic diagram of the handle structure in this utility model;
[0030] Figure 8 This is a partial sectional view of the connecting part on the handle in this utility model;
[0031] Figure 9 This is one of the structural schematic diagrams of the auxiliary support leg in this utility model;
[0032] Figure 10 This is the second schematic diagram of the auxiliary support leg in this utility model;
[0033] Figure 11 This is a structural schematic diagram of the support frame in this utility model.
[0034] The labels in the diagram mean: 1-handle; 11-connecting part; 12-grip part; 13-anti-slip protrusion; 111-swing groove; 112-positioning part; 113-limiting wall; 114-insertion part; 115-light groove; 131-first pressing surface;
[0035] 2-Heating block; 3-Heat insulation device; 4-Auxiliary support leg; 41-Hinge; 42-Positioning groove; 43-Side wall; 44-Supporting plane; 45-Second abutting surface; 46-Groove; 5-Support frame; 51-Slot; 6-Lighting lamp; 7-Control switch. Detailed Implementation
[0036] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:
[0037] See Figures 1 to 11 As shown, a hot melt machine includes a handle 1 and a heating block 2, with a heat insulation device 3 disposed between the handle 1 and the heating block 2. The handle 1 is provided with a connecting part 11 and a grip part 12 for the user to hold. The heat insulation device 3 is detachably disposed on the connecting part 11. An auxiliary support leg 4 is rotatably disposed on the connecting part 11. The auxiliary support leg 4 can unfold towards the side of the grip part 12 to support the grip part 12, and the auxiliary support leg 4 can be flipped and folded to one side of the grip part 12 for use as a hand guard. The auxiliary support leg 4, which is rotatably disposed on the connecting part 11, will not be accidentally lost, making it convenient for the user to use for a long time. When the user does not need the auxiliary support leg 4, the auxiliary support leg 4 can be folded towards the grip part 12 for convenient storage, handling, and transportation of the hot melt machine. Since the auxiliary support leg 4 can be folded to one side of the grip part 12 for use as a hand guard, it helps to improve the safety of the hot melt machine and makes it convenient for the user to use.
[0038] The hand guard is a structure provided on one side of the handle 12 to protect the user's hand, and a gap is provided between the hand guard and the handle 12 for the user's hand to pass through.
[0039] The heating block 2 and the heat insulation device 3 are both necessary structures on the hot melt machine, and both are existing technologies known to those skilled in the art. Therefore, although the present invention does not specifically describe the heating block 2 and the heat insulation device 3, those skilled in the art can implement the technical solutions in the present invention based on their own knowledge and existing technology. The handle 1 in the present invention is also provided with a control circuit for controlling the heating block 2, and the control circuit is also existing technology. Those skilled in the art can implement the technical solutions in the present invention based on their own knowledge and existing technology.
[0040] In this utility model, the connecting part 11 is preferably provided with a detachable support frame 5. The support frame 5 can support the handle part 12 and suspend the auxiliary support leg 4. Compared with the rotatable auxiliary support leg 4, the support frame 5 is more stable. The user can flexibly choose the support method according to the needs, which is convenient for the user. In this embodiment, the lower end of the connecting part 11 is provided with a plug-in part 114, and the support frame 5 is provided with a slot 51 that is adapted to the plug-in part 114. The plug-in part 114 can be inserted into the slot 51.
[0041] The connecting part 11 is provided with two sets of positioning parts 112, and the auxiliary support leg 4 is provided with positioning grooves 42 that are adapted to the positioning parts 112. The positioning grooves 42 on the auxiliary support leg 4 can cooperate with the two sets of positioning parts 112 respectively and keep the auxiliary support leg 4 and the handle part 12 in the unfolded state and the folded state. The positioning grooves 42 and the two sets of positioning parts 112 facilitate the auxiliary support leg 4 and the handle part 12 to keep in the unfolded state and the folded state, and prevent the auxiliary support leg 4 and the handle part 12 from rotating accidentally during use or storage and transportation. This facilitates the stable placement of the hot melt and the storage and transportation of the hot melt, and makes it convenient for users to use. In this utility model, the positioning grooves 42 can also be provided on the connecting part 11 and the positioning parts 112 can be provided on the auxiliary support leg 4.
[0042] In this structure, the positioning part 112 and the positioning groove 42 can be in one-to-one correspondence, or one positioning groove 42 can correspond to two positioning parts 112, or one positioning part 112 can correspond to two positioning grooves 42. In this embodiment, the connecting part 11 is provided with two sets of positioning parts 112, and the auxiliary support leg 4 is provided with two positioning grooves 42. In this embodiment, one positioning groove 42 is provided on the side of the auxiliary support leg 4, and the other positioning groove 42 is provided at the bottom of the auxiliary support leg 4.
[0043] The connecting part 11 of this utility model is provided with a swing groove 111, and one end of the auxiliary support leg 4 passes through the swing groove 111. Limiting walls 113 are provided on both sides of the swing groove 111. The limiting walls 113 can limit the rotation range of the auxiliary support leg 4. When the auxiliary support leg 4 abuts against the limiting walls 113 on both sides of the swing groove 111, the positioning groove 42 on the auxiliary support leg 4 can cooperate with the two sets of positioning parts 112 on the connecting part 11 respectively. The swing groove 111 facilitates the stable rotation of the auxiliary support leg 4, while the limiting walls 113 on both sides of the swing groove 111 facilitate the quick unfolding or folding of the auxiliary support leg 4 to a designated position, making it convenient for the user.
[0044] In this embodiment, the auxiliary support leg 4 is provided with a hinge part 41 that passes through the swing groove 111, the positioning groove 42 is provided on the hinge part 41, and both sides of the hinge part 41 are provided with side walls 43 for abutting against the limiting wall 113.
[0045] Preferably, both sets of positioning parts 112 have arc-shaped surfaces on their sides. Under the action of external force, the side of the positioning groove 42 can be guided along the arc-shaped surface and disengaged from the positioning part 112, so that it can rotate relative to the connecting part 11. The arc-shaped surface facilitates the connection and cooperation between the positioning part 112 and the positioning groove 42, and makes it easier for the user to control the relative unfolding and folding of the auxiliary support leg 4 and the handle part 12, making it convenient for the user to use.
[0046] Two sets of auxiliary support legs 4 are rotatably provided on the connecting part 11. The two sets of auxiliary support legs 4 can be rotated and unfolded to both sides of the handle 1 to support the handle 1. The two sets of auxiliary support legs 4, which can be rotated and unfolded to both sides of the handle 1, facilitate the stable placement of the hot melt and prevent the hot melt from tilting to both sides, making it convenient for the user to use.
[0047] In this utility model, the bottom of the auxiliary support leg 4 can be provided with a support plane 44, so that it can be supported by the support plane 44 on the two auxiliary support legs 4 during use.
[0048] Preferably, the connecting part 11 is located at the front end of the handle part 12, and the rear end of the handle part 12 is provided with an anti-slip protrusion 13. The anti-slip protrusion 13 can work together with the two sets of auxiliary support legs 4 to support the handle 1. The anti-slip protrusion 13 makes it easy for the user to grip the handle part 12 stably, preventing the hot melt from accidentally slipping out of the hand, making it convenient for the user to use. Furthermore, since the anti-slip protrusion 13 can work together with the two sets of auxiliary support legs 4 to support the handle 1, it is convenient to place the hot melt stably.
[0049] In this embodiment, the anti-detachment protrusion 13 and the auxiliary support leg 4 are respectively provided with an arc-shaped first abutment surface 131 and a second abutment surface 45. When the auxiliary support leg 4 and the handle part 12 are unfolded relative to each other, the first abutment surface 131 and the second abutment surface 45 on the two auxiliary support legs 4 are triangularly distributed. The arc-shaped first abutment surface 131 and the second abutment surface 45 make it easier for the user to place the hot melter on uneven ground and facilitate the stable placement of the hot melter.
[0050] The auxiliary support leg 4 is provided with a groove 46 corresponding to the anti-slip protrusion 13. After the auxiliary support leg 4 is folded to one side of the handle 12, the anti-slip protrusion 13 is inserted into the groove 46. The groove 46 is designed to facilitate the tight connection between the auxiliary support leg 4 and the anti-slip protrusion 13, and to prevent the auxiliary support leg 4 from getting caught on other items after it is folded, making it convenient for the user to use.
[0051] In this invention, a lighting lamp 6 is provided at one end of the connecting part 11 near the heating block 2. The lighting lamp 6 can illuminate the heating block 2 or the side of the heating block 2. A control switch 7 electrically connected to the lighting lamp 6 is provided on the handle 1. The lighting lamp 6 and the control switch 7 facilitate the user to illuminate the heating block 2, make it easier for the user to observe the heating block 2, and make it convenient for the user to use the hot melt machine. Preferably, the control switch 7 is a waterproof switch. Controlling the lighting lamp 6 through the control switch 7 is a common technical means in the field. Therefore, although this invention does not describe the connection of the lighting lamp 6, the control switch 7, and the control circuit, those skilled in the art can implement this technical solution based on their own knowledge and existing technology.
[0052] In this embodiment, the connecting part 11 is detachably connected to the heat insulation device 3 at one end near the heating block 2, and a lamp groove 115 is provided at one end of the connecting part 11 near the heating block 2. The lamp groove 115 is located on the upper side of the heat insulation device 3 or on the left and right sides of the heat insulation device 3, and the lighting lamp 6 is inserted in the lamp groove 115.
[0053] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.
Claims
1. A heat melter, comprising a handle (1) and a heating block (2), wherein a heat insulation device (3) is provided between the handle (1) and the heating block (2), characterized in that: The handle (1) is provided with a connecting part (11) and a grip part (12) for the user to hold. The heat insulation device (3) is detachably provided on the connecting part (11). An auxiliary support leg (4) is rotatably provided on the connecting part (11). The auxiliary support leg (4) can be unfolded to the side of the grip part (12) and support the grip part (12). The auxiliary support leg (4) can be flipped and folded to one side of the grip part (12) and used as a hand guard.
2. The hot melt machine according to claim 1, characterized in that: A support frame (5) is detachably provided on the connecting part (11). The support frame (5) can support the handle part (12) and suspend the auxiliary support leg (4).
3. A hot melt machine according to claim 1 or 2, characterized in that: The connecting part (11) is provided with two sets of positioning parts (112), and the auxiliary support leg (4) is provided with positioning grooves (42) that are adapted to the positioning parts (112). The positioning grooves (42) on the auxiliary support leg (4) can cooperate with the two sets of positioning parts (112) respectively and keep the auxiliary support leg (4) and the handle part (12) in an unfolded state and a folded state.
4. A hot melt machine according to claim 3, characterized in that: The connecting part (11) is provided with a swing groove (111), and one end of the auxiliary support leg (4) passes through the swing groove (111). Limiting walls (113) are provided on both sides of the swing groove (111). The limiting walls (113) can limit the rotation range of the auxiliary support leg (4). When the auxiliary support leg (4) abuts against the limiting walls (113) on both sides of the swing groove (111), the positioning groove (42) on the auxiliary support leg (4) can cooperate with the two sets of positioning parts (112) on the connecting part (11).
5. A hot melt machine according to claim 4, characterized in that: Both sets of positioning parts (112) have arc-shaped surfaces on their sides. Under the action of external force, the side of the positioning groove (42) can be guided along the arc-shaped surface and disengaged from the positioning part (112), so that it can rotate relative to the connecting part (11).
6. A hot melt machine according to claim 1, 2, 4, or 5, characterized in that: Two sets of auxiliary support legs (4) are rotatably provided on the connecting part (11). The two sets of auxiliary support legs (4) can be rotated and unfolded to both sides of the handle (1) to support the handle (1).
7. A hot melt machine according to claim 6, characterized in that: The connecting part (11) is located at the front end of the handle part (12), and the rear end of the handle part (12) is provided with an anti-slip protrusion (13). The anti-slip protrusion (13) can work together with the two sets of auxiliary support legs (4) to support the handle (1).
8. A hot melt machine according to claim 7, characterized in that: The anti-slip protrusion (13) and the auxiliary support leg (4) are respectively provided with an arc-shaped first abutting surface (131) and a second abutting surface (45). When the auxiliary support leg (4) and the handle (12) are unfolded relative to each other, the first abutting surface (131) and the second abutting surface (45) on the two auxiliary support legs (4) are triangularly distributed.
9. A hot melt machine according to claim 7 or 8, characterized in that: The auxiliary support leg (4) is provided with a groove (46) corresponding to the anti-slip protrusion (13). After the auxiliary support leg (4) is folded to the side of the handle (12), the anti-slip protrusion (13) is inserted into the groove (46).
10. A hot melter according to claim 1, 2, 4, 5, 7, or 8, characterized in that: The connecting part (11) is provided with a lighting lamp (6) near the heating block (2). The lighting lamp (6) can illuminate the heating block (2) or the side of the heating block (2). The handle (1) is provided with a control switch (7) that is electrically connected to the lighting lamp (6).