Joint structure and water heating blanket

Abstract

The utility model relates to a connector structure and a water heating blanket, and relates to the technical field of water heating blankets. The connector structure comprises a shell assembly, a first connector, a second connector and a water inlet sealing piece. The first joint is arranged in the shell assembly; the second joint movably sleeves the first joint; a water inlet cavity is formed in one end, far away from the shell assembly, of the second joint; the water inlet sealing element is arranged at one end of the first joint close to the water inlet cavity; the second connector is configured to move towards the side away from the water inlet sealing piece in the height direction in the communicating state of the connector structure, so that the water inlet cavity communicates with the first connector. And when the connector structure is in a closed state, the connector structure moves towards the side close to the water inlet sealing piece in the height direction, the water inlet cavity abuts against the water inlet sealing piece, and the water inlet cavity is not communicated with the first connector. According to the technical scheme, the problem that when an existing main machine and an existing blanket are separated, water in the blanket directly flows out easily, and leakage is caused can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of water heating blankets, in particular to a joint structure and a water heating blanket. Background Art

[0002] The water heating blanket is a water circulation heating type electric blanket. The water heating blanket includes a main unit and a blanket connected to the main unit. The main unit and the blanket are separated when stored, and connected when used. The existing connection method is to directly insert the water pipe in the blanket into the water inlet and outlet of the main unit. However, this connection method is easy to cause the water in the blanket to flow out directly when the main unit and the blanket are separated, causing leakage. Utility Model Content

[0003] The embodiments of the utility model provide a joint structure and a water-heating blanket, which can solve the problem that when the existing host and the blanket are separated, water in the blanket is easily caused to flow out directly and cause leakage.

[0004] In a first aspect, an embodiment of the utility model provides a joint structure, comprising:

[0005] Shell assembly;

[0006] A first connector, disposed in the housing assembly;

[0007] A second joint is movably sleeved outside the first joint, and a water inlet cavity is provided at one end of the second joint away from the housing assembly; and

[0008] A water inlet seal, arranged at one end of the first joint close to the water inlet cavity;

[0009] Wherein, the second joint is constructed to move along the height direction toward the side away from the water inlet seal when the joint structure is in a connected state, so that the water inlet cavity is connected with the first joint; and to move along the height direction toward the side close to the water inlet seal when the joint structure is in a closed state, so that the water inlet cavity abuts against the water inlet seal and the water inlet cavity is disconnected from the first joint.

[0010] In one embodiment, an inner cavity is provided in the first joint; a plurality of water holes are provided on the outer wall of the first joint, the plurality of water holes penetrate the first joint in a radial direction, and the water holes are connected to the inner cavity;

[0011] Wherein, the water through hole is configured to be at least partially located in the water inlet cavity in the connected state; and to be located outside the water inlet cavity in the closed state.

[0012] In one embodiment, the joint structure further includes a joint elastic member, the joint elastic member is sleeved on the first joint, one end of the joint elastic member abuts against the first joint and the other end abuts against the second joint;

[0013] Wherein, the second joint is configured to compress the joint elastic member in the connected state; and the joint elastic member is configured to drive the second joint to move along the height direction in the closed state.

[0014] In one embodiment, the housing assembly comprises:

[0015] shell;

[0016] A guide rod is disposed on the inner wall of the housing, and the guide rod extends along the width direction; and

[0017] The pressing part is movably sleeved on the guide rod, part of the pressing part is located outside the shell, and the pressing part can move along the width direction to fix the second joint at a preset position in the height direction.

[0018] In one embodiment, the housing assembly further comprises a main stopper disposed in the housing, the main stopper being provided with a through hole; a secondary stopper is provided on the outer wall of the first joint;

[0019] Wherein, the first joint is penetrated through the through hole and the secondary limiting member is in abutment with the main limiting member.

[0020] In one embodiment, the pressing portion includes:

[0021] A button, one end of which is movably sleeved outside the guide rod and the other end of which extends out of the housing;

[0022] A pressure rod, disposed on the button, with one end of the pressure rod extending out of the housing; and

[0023] A pressure rod elastic member, sleeved on the button, one end of the pressure rod elastic member abuts against the housing and the other end abuts against the button;

[0024] Wherein, the pressure rod is configured to abut against the second joint in the connected state so that the second joint is fixed at a preset position in the height direction.

[0025] In one embodiment, a joint groove is provided on the outer wall of the second joint, and the joint groove is used to abut against the pressure rod.

[0026] In one embodiment, the joint structure further comprises:

[0027] a water pipe connected to an end of the first joint away from the second joint; and

[0028] The water-passing seal is arranged between the first joint and the second joint. The water-passing seal and the water-inlet seal are respectively located on both sides of the water-passing hole.

[0029] In a second aspect, an embodiment of the utility model provides a water heating blanket, comprising a joint structure as described above.

[0030] In one embodiment, the water heating blanket further comprises:

[0031] A host, the host having a water storage cavity and a water hole connected to the water storage cavity; and

[0032] A valve, disposed in the water hole;

[0033] a blanket connected to the water pipe of the joint structure;

[0034] Wherein, in the working state, the joint structure is arranged in the water hole so that the valve is opened and the joint structure is in a connected state.

[0035] Compared with the prior art, the advantage of the embodiment of the utility model is that, by setting a joint structure to be connected to the main unit and the blanket respectively, when the main unit and the blanket are connected, the joint structure is in a connected state, that is, the second joint is moved along the height direction to the side away from the water inlet seal, the distance between the water inlet seal and the water inlet chamber is increased, the water inlet chamber is connected to the first joint and forms a water channel, so that the water in the main unit and the blanket circulates through the water channel; when the main unit and the blanket are separated, the joint structure is in a closed state, that is, the second joint is moved along the height direction to the side close to the water inlet seal, the water inlet chamber abuts against the water inlet seal, and the water channel is closed, thereby solving the problem that the water in the blanket is difficult to control and easy to leak when the user connects or removes the blanket. Compared with the existing connection method of leading the water pipe in the blanket and directly inserting it into the water inlet and outlet of the main unit, the joint assembly provided by the utility model can effectively prevent the water in the blanket from leaking, which is convenient for users to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0037] Figure 1 This is a front view of a joint structure provided by an embodiment of the utility model;

[0038] Figure 2 yes Figure 1 Cross-sectional view along AA direction;

[0039] Figure 3 yes Figure 1 Cross-sectional view along direction BB;

[0040] Figure 4 yes Figure 1 A cross-sectional view of the joint structure provided in the embodiment in a closed state;

[0041] Figure 5 yes Figure 1 A cross-sectional view of the joint structure provided in the embodiment in the top view direction;

[0042] Figure 6 yes Figure 1 An exploded view of the joint structure provided in the embodiment;

[0043] Figure 7 It is a schematic diagram of the coordination of a host and a joint structure provided by another embodiment of the utility model.

[0044] Reference numerals:

[0045] 1. Joint structure; 2. Main unit; 3. Valve; 4. Valve body; 5. Valve core; 6. Valve elastic part; 7. Valve seal; 8. Valve sealing surface; 9. Fixed seat; 11. Third step surface; 12. Fourth step surface; 13. Card slot;

[0046] 10. Shell assembly; 110. Shell; 1101. Upper shell; 1102. Lower shell; 1103. Main stopper; 120. Guide rod; 130. Pressing part; 1301. Button; 1302. Pressing rod; 1303. Pressing rod elastic member;

[0047] 20, first joint; 210, water hole; 220, auxiliary stopper; 230, upper joint section; 240, lower joint section; 250, first step surface;

[0048] 30, second joint; 310, water inlet cavity; 320, joint groove; 330, second step surface;

[0049] 40. Water inlet seal;

[0050] 50. Joint elastic parts;

[0051] 60. Water pipes;

[0052] 70. Water-transmitting seal. DETAILED DESCRIPTION

[0053] The utility model will be further described below in conjunction with the accompanying drawings.

[0054] The water-heating blanket is a water-circulating heating electric blanket. It includes a main unit and a blanket connected to the main unit. The water heated in the main unit is pressed into the heat dissipation pipe of the blanket to dissipate heat. The water after heat dissipation returns to the main unit to continue heating, forming a cycle. The main unit and the blanket are separated when stored, and connected when used. The existing connection method is to lead the water pipe in the blanket directly into the water inlet and outlet of the main unit. However, this connection method is easy to cause the water in the blanket to flow out directly when the main unit and the blanket are separated, causing leakage.

[0055] Embodiment 1

[0056] like Figure 1-Figure 6 As shown, at least one embodiment of the utility model provides a joint structure, including a shell assembly 10, a first joint 20, a second joint 30 and a water inlet seal 40; the first joint 20 is arranged in the shell assembly 10; the second joint 30 is movably sleeved on the outside of the first joint 20, and the end of the second joint 30 away from the shell assembly 10 is provided with a water inlet chamber 310; the water inlet seal 40 is arranged at the end of the first joint 20 close to the water inlet chamber 310; wherein, the second joint 30 is constructed to move along the height direction to the side away from the water inlet seal 40 in the connected state of the joint structure, so that the water inlet chamber 310 is connected with the first joint 20; and to move along the height direction to the side close to the water inlet seal 40 in the closed state of the joint structure, so that the water inlet chamber 310 abuts against the water inlet seal 40, and the water inlet chamber 310 is disconnected from the first joint 20.

[0057] As can be seen from the above, by setting a joint structure to be connected to the host and the blanket respectively, when the host and the blanket are connected, the joint structure is in a connected state, that is, the second joint 30 is moved along the height direction to the side away from the water inlet seal 40, the distance between the water inlet seal 40 and the water inlet chamber 310 increases, the water inlet chamber 310 is connected to the first joint 20 and forms a water channel, so that the water in the host and the blanket circulates through the water channel; when the host and the blanket are separated, the joint structure is in a closed state, that is, the second joint 30 is moved along the height direction to the side close to the water inlet seal 40, the water inlet chamber 310 abuts against the water inlet seal 40, and the water channel is closed, thereby solving the problem that the water in the blanket is difficult to control and the water is easy to leak when the user connects or removes the blanket. Compared with the existing connection method of leading the water pipe 60 in the blanket and directly inserting it into the water inlet and outlet of the host, the joint assembly provided by the utility model can effectively prevent the water in the blanket from leaking, which is convenient for users to use.

[0058] It should be noted that the water-heating blanket includes a main unit and a blanket connected to the main unit. The heat is dissipated by pressing the heated water in the main unit into the heat dissipation pipeline of the blanket. The heat-dissipated water returns to the main unit for further heating, thus forming a cycle. The main unit and the blanket are separated when stored, and connected when used; the second connector 30 is used to connect to the main unit, and the first connector 20 is used to connect to the blanket.

[0059] It should also be noted that when the joint structure is only connected to the blanket, it can also be used for blanket drainage. When draining water, the second joint 30 is moved along the height direction to the side away from the water inlet seal 40 to put the joint structure in a connected state to achieve drainage. Compared with the existing anti-leakage joint, which requires special tools to open the joint valve when draining water, the joint structure of the utility model not only has an anti-leakage function, but also the drainage operation is simple and convenient, and no special tools are required.

[0060] It should also be noted that, as described above, the second connector 30 is movably mounted on the first connector 20, forming a technical feature of supporting each other functionally and interacting with each other.

[0061] It should also be noted that if Figure 6 As shown, the height direction is parallel to the Z direction, the length direction is parallel to the X direction, the width direction is parallel to the Y direction, and the height direction, the length direction and the width direction are perpendicular to each other.

[0062] It should also be noted that if Figure 3 , Figure 4 As shown, a water inlet sealing groove is provided on the first joint 20, and a water inlet sealing member 40 is provided in the water inlet sealing groove; the water inlet sealing member 40 includes but is not limited to a sealing ring.

[0063] It should also be noted that there are multiple first connectors 20, multiple second connectors 30, multiple second connectors 30 correspond to multiple first connectors 20 one by one, and the second connectors 30 can be movably sleeved on the corresponding first connectors 20; for example, Figure 1-Figure 6 As shown, there are two first joints 20 and two second joints 30 , the two first joints 20 are arranged at intervals in the length direction, the two second joints 30 correspond to the two first joints 20 one by one, and the second joints 30 are movably mounted on the corresponding first joints 20 .

[0064] Embodiment 2

[0065] like Figure 1-Figure 6As shown, the joint structure includes a shell assembly 10, a first joint 20, a second joint 30 and a water inlet seal 40; the first joint 20 is arranged in the shell assembly 10; the second joint 30 is movably sleeved outside the first joint 20, and a water inlet chamber 310 is arranged at the end of the second joint 30 away from the shell assembly 10; the water inlet seal 40 is arranged at the end of the first joint 20 close to the water inlet chamber 310; wherein, the second joint 30 is constructed to move along the height direction toward the side away from the water inlet seal 40 in the connected state of the joint structure, so that the water inlet chamber 310 is connected with the first joint 20; and to move along the height direction toward the side close to the water inlet seal 40 in the closed state of the joint structure, so that the water inlet chamber 310 abuts against the water inlet seal 40, and the water inlet chamber 310 is disconnected from the first joint 20.

[0066] As can be seen from the above, by setting a joint structure to be connected to the host and the blanket respectively, when the host and the blanket are connected, the joint structure is in a connected state, that is, the second joint 30 is moved along the height direction to the side away from the water inlet seal 40, the distance between the water inlet seal 40 and the water inlet chamber 310 increases, the water inlet chamber 310 is connected to the first joint 20 and forms a water channel, so that the water in the host and the blanket circulates through the water channel; when the host and the blanket are separated, the joint structure is in a closed state, that is, the second joint 30 is moved along the height direction to the side close to the water inlet seal 40, the water inlet chamber 310 abuts against the water inlet seal 40, and the water channel is closed, thereby solving the problem that the water in the blanket is difficult to control and the water is easy to leak when the user connects or removes the blanket. Compared with the existing connection method of leading the water pipe 60 in the blanket and directly inserting it into the water inlet and outlet of the host, the joint assembly provided by the utility model can effectively prevent the water in the blanket from leaking, which is convenient for users to use.

[0067] It should be noted that the water-heating blanket includes a main unit and a blanket connected to the main unit. The heat is dissipated by pressing the heated water in the main unit into the heat dissipation pipeline of the blanket. The heat-dissipated water returns to the main unit for further heating, thus forming a cycle. The main unit and the blanket are separated when stored, and connected when used; the second connector 30 is used to connect to the main unit, and the first connector 20 is used to connect to the blanket.

[0068] It should also be noted that when the joint structure is only connected to the blanket, it can also be used for blanket drainage. When draining water, the second joint 30 is moved along the height direction to the side away from the water inlet seal 40 to put the joint structure in a connected state to achieve drainage. Compared with the existing anti-leakage joint, which requires special tools to open the joint valve when draining water, the joint structure of the utility model not only has an anti-leakage function, but also the drainage operation is simple and convenient, and no special tools are required.

[0069] It should also be noted that, as described above, the second connector 30 is movably mounted on the first connector 20, forming a technical feature of supporting each other functionally and interacting with each other.

[0070] It should also be noted that if Figure 6 As shown, the height direction is parallel to the Z direction, the length direction is parallel to the X direction, the width direction is parallel to the Y direction, and the height direction, the length direction and the width direction are perpendicular to each other.

[0071] It should also be noted that if Figure 3 , Figure 4 As shown, a water inlet sealing groove is provided on the first joint 20, and a water inlet sealing member 40 is provided in the water inlet sealing groove; the water inlet sealing member 40 includes but is not limited to a sealing ring.

[0072] It should also be noted that the number of the first joints 20 can be multiple, the number of the second joints 30 can be multiple, the multiple second joints 30 correspond to the multiple first joints 20 one by one, and the second joints 30 can be movably sleeved on the corresponding first joints 20; for example, Figure 1-Figure 6 As shown, there are two first joints 20 and two second joints 30 , the two first joints 20 are arranged at intervals in the length direction, the two second joints 30 correspond to the two first joints 20 one by one, and the second joints 30 are movably mounted on the corresponding first joints 20 .

[0073] like Figure 5 , Figure 6 As shown, in some embodiments, an inner cavity is provided in the first joint 20; a plurality of water holes 210 are provided on the outer wall of the first joint 20, the plurality of water holes 210 penetrate the first joint 20 in a radial direction, and the water holes 210 are connected to the inner cavity; wherein the water holes 210 are constructed to be at least partially located in the water inlet cavity 310 in a connected state; and to be located outside the water inlet cavity 310 in a closed state.

[0074] The water hole 210 and the inner cavity provide a structural basis for the connection between the first joint 20 and the second joint 30. In the connected state, the second joint 30 is moved in the height direction to the side away from the water inlet seal 40, so that the water hole 210 is at least partially located in the water inlet cavity 310. The water inlet cavity 310, the water hole 210 and the inner cavity together form a water channel, and the water in the host and the blanket circulates through the water channel; in the closed state, the second joint 30 is moved in the height direction to the side close to the water inlet seal 40, so that the water hole 210 is located outside the water inlet cavity 310, and the water channel is closed.

[0075] It should be noted that the plurality of water holes 210 are arranged at equal intervals around the first joint 20. As described above, the water holes 210 are arranged in the above manner, which has the following technical effects: it can divert water and allow water to enter the inner cavity evenly and quickly.

[0076] like Figure 3 , Figure 4 As shown, in some embodiments, the longitudinal section width of the water inlet cavity 310 gradually decreases along the height direction, and the longitudinal section width of the end of the water inlet cavity 310 away from the shell assembly 10 is greater than the longitudinal section width of the end of the water inlet cavity 310 close to the shell assembly 10.

[0077] It should be noted that, as described above, the water inlet chamber 310 adopts the above-mentioned shape, which has the following technical effects: when in a closed state, the water inlet seal 40 abuts against the water inlet chamber 310, which can further improve the sealing effect, thereby ensuring the closure of the water channel and improving the anti-leakage effect of the joint structure.

[0078] It should also be noted that the longitudinal section is a section perpendicular to the length direction, and the longitudinal section width is the dimension of the longitudinal section in the width direction; the water inlet cavity 310 includes but is not limited to a truncated cone or spherical shape that is larger at the top and smaller at the bottom.

[0079] It should also be noted that if Figure 3 , Figure 4 As shown, the first joint 20 includes an upper joint section 230 and a lower joint section 240, wherein the diameter of the upper joint section 230 is smaller than that of the lower joint section 240 to form a first step surface 250; wherein the water hole 210 and the water inlet seal 40 are both located in the upper joint section 230, and the water inlet seal 70 is disposed in the lower joint section 240;

[0080] The second joint 30 is provided with a joint hole connected to the water inlet cavity 310 for the first joint 20 to pass through; the joint hole includes an upper joint hole section and a lower joint hole section, the upper joint hole section is connected to the water inlet cavity 310, the diameter of the upper joint hole section is smaller than the diameter of the lower joint hole section, so as to form a second step surface 330; wherein the lower joint hole section matches the shape of the lower joint, and the upper joint hole section matches the shape of the lower joint;

[0081] As described above, the connection between the first joint 20 and the second joint 30 has the following technical effects: it not only provides space and structural basis for the installation of the joint elastic member 50, but also improves the guiding effect for the movement of the second joint 30 in the height direction.

[0082] like Figure 3 , Figure 4 , Figure 6As shown, in some embodiments, the joint structure also includes a joint elastic member 50, which is sleeved on the first joint 20, one end of the joint elastic member 50 abuts against the first joint 20 and the other end abuts against the second joint 30; wherein the second joint 30 is configured to compress the joint elastic member 50 in a connected state; and the joint elastic member 50 is configured to drive the second joint 30 to move in a height direction in a closed state.

[0083] As described above, the joint elastic member 50 and the first joint 20 and the second joint 30 are connected in the above-mentioned manner, forming a technical feature of mutual support and interaction in the functional relationship, and the joint elastic member 50 and the first joint 20 and the second joint 30 have the following technical effects by adopting the above-mentioned connection method:

[0084] In the connected state, the joint elastic member 50 can be compressed and elastically deformed and store energy during the movement of the second joint 30. In the closed state, the second joint 30 can be moved in the height direction under the elastic force of the joint elastic member 50, so that the water inlet seal 40 abuts against the water inlet cavity 310, thereby providing a structural basis for the automatic closure of the water channel when the main unit is separated from the blanket.

[0085] It should be noted that the joint elastic member 50 includes but is not limited to a spring; in addition, Figure 3 As shown, two ends of the joint elastic member 50 are respectively in contact with the first step surface 250 and the second step surface 330 .

[0086] It should also be noted that it is conceivable that other connection methods can be used between the joint elastic member 50 and the first joint 20 and the second joint 30. For example, the two ends of the joint elastic member 50 are fixedly connected to the first joint 20 and the second joint 30 respectively.

[0087] Embodiment 3

[0088] like Figure 1-Figure 6 As shown, the joint structure includes a shell assembly 10, a first joint 20, a second joint 30 and a water inlet seal 40; the first joint 20 is arranged in the shell assembly 10; the second joint 30 is movably sleeved outside the first joint 20, and a water inlet chamber 310 is arranged at the end of the second joint 30 away from the shell assembly 10; the water inlet seal 40 is arranged at the end of the first joint 20 close to the water inlet chamber 310; wherein, the second joint 30 is constructed to move along the height direction toward the side away from the water inlet seal 40 in the connected state of the joint structure, so that the water inlet chamber 310 is connected with the first joint 20; and to move along the height direction toward the side close to the water inlet seal 40 in the closed state of the joint structure, so that the water inlet chamber 310 abuts against the water inlet seal 40, and the water inlet chamber 310 is disconnected from the first joint 20.

[0089] As can be seen from the above, by setting a joint structure to be connected to the host and the blanket respectively, when the host and the blanket are connected, the joint structure is in a connected state, that is, the second joint 30 is moved along the height direction to the side away from the water inlet seal 40, the distance between the water inlet seal 40 and the water inlet chamber 310 increases, the water inlet chamber 310 is connected to the first joint 20 and forms a water channel, so that the water in the host and the blanket circulates through the water channel; when the host and the blanket are separated, the joint structure is in a closed state, that is, the second joint 30 is moved along the height direction to the side close to the water inlet seal 40, the water inlet chamber 310 abuts against the water inlet seal 40, and the water channel is closed, thereby solving the problem that the water in the blanket is difficult to control and the water is easy to leak when the user connects or removes the blanket. Compared with the existing connection method of leading the water pipe 60 in the blanket and directly inserting it into the water inlet and outlet of the host, the joint assembly provided by the utility model can effectively prevent the water in the blanket from leaking, which is convenient for users to use.

[0090] It should be noted that the water-heating blanket includes a main unit and a blanket connected to the main unit. The heat is dissipated by pressing the heated water in the main unit into the heat dissipation pipeline of the blanket. The heat-dissipated water returns to the main unit for further heating, thus forming a cycle. The main unit and the blanket are separated when stored, and connected when used; the second connector 30 is used to connect to the main unit, and the first connector 20 is used to connect to the blanket.

[0091] It should also be noted that when the joint structure is only connected to the blanket, it can also be used for blanket drainage. When draining water, the second joint 30 is moved along the height direction to the side away from the water inlet seal 40 to put the joint structure in a connected state to achieve drainage. Compared with the existing anti-leakage joint, which requires special tools to open the joint valve when draining water, the joint structure of the utility model not only has an anti-leakage function, but also the drainage operation is simple and convenient, and no special tools are required.

[0092] It should also be noted that, as described above, the second connector 30 is movably mounted on the first connector 20, forming a technical feature of supporting each other functionally and interacting with each other.

[0093] It should also be noted that if Figure 6 As shown, the height direction is parallel to the Z direction, the length direction is parallel to the X direction, the width direction is parallel to the Y direction, and the height direction, the length direction and the width direction are perpendicular to each other.

[0094] It should also be noted that if Figure 3 , Figure 4 As shown, a water inlet sealing groove is provided on the first joint 20, and a water inlet sealing member 40 is provided in the water inlet sealing groove; the water inlet sealing member 40 includes but is not limited to a sealing ring.

[0095] It should also be noted that the number of the first joints 20 can be multiple, the number of the second joints 30 can be multiple, the multiple second joints 30 correspond to the multiple first joints 20 one by one, and the second joints 30 can be movably sleeved on the corresponding first joints 20; for example, Figure 1-Figure 6 As shown, there are two first joints 20 and two second joints 30 , the two first joints 20 are arranged at intervals in the length direction, the two second joints 30 correspond to the two first joints 20 one by one, and the second joints 30 are movably mounted on the corresponding first joints 20 .

[0096] like Figure 5 , Figure 6 As shown, in some embodiments, an inner cavity is provided in the first joint 20; a plurality of water holes 210 are provided on the outer wall of the first joint 20, the plurality of water holes 210 penetrate the first joint 20 in a radial direction, and the water holes 210 are connected to the inner cavity; wherein the water holes 210 are constructed to be at least partially located in the water inlet cavity 310 in a connected state; and to be located outside the water inlet cavity 310 in a closed state.

[0097] The water hole 210 and the inner cavity provide a structural basis for the connection between the first joint 20 and the second joint 30. In the connected state, the second joint 30 is moved in the height direction to the side away from the water inlet seal 40, so that the water hole 210 is at least partially located in the water inlet cavity 310. The water inlet cavity 310, the water hole 210 and the inner cavity together form a water channel, and the water in the host and the blanket circulates through the water channel; in the closed state, the second joint 30 is moved in the height direction to the side close to the water inlet seal 40, so that the water hole 210 is located outside the water inlet cavity 310, and the water channel is closed.

[0098] It should be noted that the plurality of water holes 210 are arranged at equal intervals around the first joint 20. As described above, the water holes 210 are arranged in the above manner, which has the following technical effects: it can divert water and allow water to enter the inner cavity evenly and quickly.

[0099] like Figure 3 , Figure 4 As shown, in some embodiments, the longitudinal section width of the water inlet cavity 310 gradually decreases along the height direction, and the longitudinal section width of the end of the water inlet cavity 310 away from the shell assembly 10 is greater than the longitudinal section width of the end of the water inlet cavity 310 close to the shell assembly 10.

[0100] It should be noted that, as described above, the water inlet chamber 310 adopts the above-mentioned shape, which has the following technical effects: when in a closed state, the water inlet seal 40 abuts against the water inlet chamber 310, which can further improve the sealing effect, thereby ensuring the closure of the water channel and improving the anti-leakage effect of the joint structure.

[0101] It should also be noted that the longitudinal section is a section perpendicular to the length direction, and the longitudinal section width is the dimension of the longitudinal section in the width direction; the water inlet cavity 310 includes but is not limited to a truncated cone or spherical shape that is larger at the top and smaller at the bottom.

[0102] It should also be noted that if Figure 3 , Figure 4 As shown, the first joint 20 includes an upper joint section 230 and a lower joint section 240, wherein the diameter of the upper joint section 230 is smaller than that of the lower joint section 240 to form a first step surface 250; wherein the water hole 210 and the water inlet seal 40 are both located in the upper joint section 230, and the water inlet seal 70 is disposed in the lower joint section 240;

[0103] The second joint 30 is provided with a joint hole connected to the water inlet cavity 310 for the first joint 20 to pass through; the joint hole includes an upper joint hole section and a lower joint hole section, the upper joint hole section is connected to the water inlet cavity 310, the diameter of the upper joint hole section is smaller than the diameter of the lower joint hole section, so as to form a second step surface 330; wherein the lower joint hole section matches the shape of the lower joint, and the upper joint hole section matches the shape of the lower joint;

[0104] As described above, the connection between the first joint 20 and the second joint 30 has the following technical effects: it not only provides space and structural basis for the installation of the joint elastic member 50, but also improves the guiding effect for the movement of the second joint 30 in the height direction.

[0105] like Figure 3 , Figure 4 , Figure 6 As shown, in some embodiments, the joint structure also includes a joint elastic member 50, which is sleeved on the first joint 20, one end of the joint elastic member 50 abuts against the first joint 20 and the other end abuts against the second joint 30; wherein the second joint 30 is configured to compress the joint elastic member 50 in a connected state; and the joint elastic member 50 is configured to drive the second joint 30 to move in a height direction in a closed state.

[0106] As described above, the joint elastic member 50 and the first joint 20 and the second joint 30 are connected in the above-mentioned manner, forming a technical feature of mutual support and interaction in the functional relationship, and the joint elastic member 50 and the first joint 20 and the second joint 30 have the following technical effects by adopting the above-mentioned connection method:

[0107] In the connected state, the joint elastic member 50 can be compressed and elastically deformed and store energy during the movement of the second joint 30. In the closed state, the second joint 30 can be moved in the height direction under the elastic force of the joint elastic member 50, so that the water inlet seal 40 abuts against the water inlet cavity 310, thereby providing a structural basis for the automatic closure of the water channel when the main unit is separated from the blanket.

[0108] It should be noted that the joint elastic member 50 includes but is not limited to a spring; in addition, Figure 3 As shown, two ends of the joint elastic member 50 are respectively in contact with the first step surface 250 and the second step surface 330 .

[0109] It should also be noted that it is conceivable that other connection methods can be used between the joint elastic member 50 and the first joint 20 and the second joint 30. For example, the two ends of the joint elastic member 50 are fixedly connected to the first joint 20 and the second joint 30 respectively.

[0110] like Figure 6 As shown, in some embodiments, the shell assembly 10 includes a shell 110, a guide rod 120 and a pressing portion 130; the guide rod 120 is arranged on the inner wall of the shell 110, and the guide rod 120 extends in the width direction; the pressing portion 130 is movably mounted on the guide rod 120, a part of the pressing portion 130 is located outside the shell, and the pressing portion 130 can move in the width direction so that the second joint 30 is fixed at a preset position in the height direction.

[0111] As described above, the pressing portion 130, the guide rod 120, and the housing 110 form a technical feature of functionally supporting each other and having an interactive relationship by adopting the above connection method, and have the following technical effects:

[0112] The pressing part 130 is driven to move in the width direction, and the second joint 30 can be fixed or released along the pressing part 130. For example, when the pressing part 130 moves in the width direction toward the direction close to the guide rod 120, the pressing part 130 releases the second joint 30, and the second joint 30 can continue to move in the height direction. When the pressing part 130 moves in the width direction away from the guide rod 120, the pressing part 130 fixes the second joint 30 at a preset position in the height direction. Therefore, in the connected state, the pressing part 130 can be used to fix the second joint 30 to prevent the second joint 30 from being reset under the elastic force of the joint elastic member 50, so as to avoid the closure of the water channel. In addition, part of the pressing part 130 is located outside the shell, which is convenient for the user to press the pressing part 130.

[0113] It should be noted that if Figure 6As shown, the housing 110 includes an upper housing 1101 and a lower housing 1102, the upper housing 1101 and the lower housing 1102 are connected in a detachable manner, the guide rod 120 is disposed in the upper housing 1101, and a groove is disposed on the lower housing 1102 for the pressing portion 130 to extend out;

[0114] It is conceivable that other connection methods may be used between the upper shell 1101 and the lower shell 1102, such as threaded connection and snap connection.

[0115] like Figure 3 , Figure 6 As shown, in some embodiments, the shell assembly 10 also includes a main limit member 1103 arranged in the shell 110, and a through hole is arranged on the main limit member 1103; a secondary limit member 220 is arranged on the outer wall of the first joint 20; wherein the first joint 20 is passed through the through hole and the secondary limit member 220 is abutted against the main limit member 1103.

[0116] As described above, the housing and the first connector 20 adopt the above connection method to form a technical feature of mutual support and interaction in terms of function, and have the following technical effects:

[0117] By setting the main limit member 1103 and the auxiliary limit member 220 to abut against each other, the first joint 20 can be limited in the height direction and radial direction to avoid the position of the first joint 20 from changing. In addition, the abutment connection method is simple and convenient. When assembling the shell and the first joint 20, the first joint 20 can be quickly installed and fixed, saving time and effort.

[0118] It should be noted that the secondary limiting member 220 is disposed on the outer wall of the lower joint section 240; in addition, the number of the primary limiting member 1103 and the secondary limiting member 220 can be multiple, for example, Figure 3 , Figure 6 As shown, there are two main limit members 1103 and two auxiliary limit members 220, and the two main limit members 1103 correspond to the two auxiliary limit members 220 one by one. The two main limit members 1103 are arranged at intervals in the height direction, and the upper end face of one main limit member 1103 abuts against the lower end face of the corresponding auxiliary limit member 220, and the lower end face of the other main limit member 1103 abuts against the upper end face of the corresponding auxiliary limit member 220, thereby limiting the height direction of the first joint 20 and limiting the movement of the first joint 20 in the height direction.

[0119] It should also be noted that the through hole matches the shape of the lower joint section 240, so that the radial direction of the first joint 20 is limited, limiting the movement of the first joint 20 in the radial direction; of course, the through hole corresponds to the first joint 20 one by one, and the first joint 20 is inserted into the corresponding through hole.

[0120] It should also be noted that the housing 110 is provided with a jack for the first connector 20 to extend out, the jack corresponds to the first plug one by one, and the first plug extends out of the corresponding jack; the diameter of the jack is larger than the diameter of the first plug, thereby providing space for the installation of the second plug; of course, the jack and the second plug can be matched in shape;

[0121] As described above, the above connection method between the second plug and the housing 110 has the following technical effects: it plays a guiding role on the outer wall of the second plug, further ensuring the stability and reliability of the second plug moving in the height direction.

[0122] like Figure 6 As shown, in some embodiments, the pressing portion 130 includes a button 1301, a pressure rod 1302 and a pressure rod elastic member 1303; one end of the button 1301 is movably mounted on the outside of the guide rod 120, and the other end extends out of the housing 110; the pressure rod 1302 is arranged on the button 1301, and one end of the pressure rod 1302 extends out of the housing 110; and the pressure rod elastic member 1303 is mounted on the button 1301, and one end of the pressure rod elastic member 1303 abuts against the shell and the other end abuts against the button 1301; wherein the pressure rod 1302 is constructed to abut against the second joint 30 in a connected state, so that the second joint 30 is fixed at a preset position in the height direction.

[0123] As described above, the button 1301, the pressure rod 1302, the pressure rod elastic member 1303 and the housing 110 adopt the above connection method to form a technical feature of mutual support and interaction in function, and have the following technical effects:

[0124] By pressing the button 1301, the button 1301 moves in the width direction toward the guide rod 120, and the pressure rod elastic member 1303 is compressed and elastically deformed and stores energy, and the pressure rod 1302 moves with the button 1301, and the pressure rod 1302 moves away from the second joint 30. The pressure rod 1302 releases the second joint 30, so that the second joint 30 can move in the height direction; the button 1301 is released, and the button 1301 can be moved in the width direction away from the guide rod 120 under the action of the pressure rod elastic member 1303, and the pressure rod 1302 approaches the second joint 30 and presses against the second joint 30, so that the second joint 30 is fixed at a preset position in the height direction.

[0125] It should be noted that the pressure rod elastic member 1303 includes but is not limited to a spring.

[0126] It should also be noted that it is conceivable that other connection methods can be used between the button 1301 and the pressure rod 1302, for example, the button 1301 and the pressure rod 1302 are connected by injection molding, or the button 1301 and the pressure rod 1302 are connected by bonding.

[0127] It should also be noted that it is conceivable that other connection methods can be used between the pressure rod elastic member 1303 and the shell and the button 1301. For example, the two ends of the pressure rod elastic member 1303 are respectively connected to the shell and the button 1301 by bonding.

[0128] It should also be noted that the upper shell 1101 is provided with a pressure rod hole for the pressure rod 1302 to extend out and a button hole for the button 1301 to extend out; in addition, when the joint structure is connected to the host, the end of the pressure rod 1302 extending out of the pressure rod hole can be inserted into the corresponding position of the host, thereby realizing a detachable connection between the shell assembly 10 and the host.

[0129] It should also be noted that if Figure 3 , Figure 6 As shown, the button 1301 and the pressure rod 1302 are respectively located on the upper and lower sides of the main limiting member 1103;

[0130] As described above, by adopting the above-mentioned positional relationship between the button 1301 and the pressure rod 1302, the following technical effects are achieved: interference with other components can be avoided, thereby ensuring the normal movement of the button 1301 and the pressure rod 1302.

[0131] like Figure 3 , Figure 5 As shown, in some embodiments, a joint groove 320 is provided on the outer wall of the second joint 30 , and the joint groove 320 is used to abut against the pressure rod 1302 .

[0132] As described above, the second machine head and the pressure rod 1302 are connected in the above manner to form a technical feature of mutual support and interaction in terms of functions, and have the following technical effects:

[0133] The fixing effect of the pressure rod 1302 on the second joint 30 is improved, and the fixing method is simple and convenient. The pressure rod 1302 can be fixed or loosened by simply moving the pressure rod 1302.

[0134] It should be noted that when the second plug moves to abut against the main stopper 1103 , the second plug stops moving. At this time, the joint groove 320 and the pressure rod 1302 are aligned in the height direction to ensure that the pressure rod 1302 can be smoothly inserted into the joint groove 320 .

[0135] It should also be noted that a clamping surface abutting against the joint groove 320 is provided on the pressure rod 1302, and the clamping surface is an arc structure and matches the shape of the joint groove 320; of course, the clamping surface corresponds one-to-one with the second joint 30, and the clamping surface abuts against the corresponding joint groove 320 of the second joint 30.

[0136] like Figure 3 , Figure 6 As shown, in some embodiments, the joint structure also includes a water pipe 60 and a water seal 70; the water pipe 60 is connected to an end of the first joint 20 away from the second joint 30; the water seal 70 is arranged between the first joint 20 and the second joint 30, and the water seal 70 and the water inlet seal 40 are respectively located on both sides of the water hole 210.

[0137] As described above, the above positional relationship between the first joint 20, the second joint 30 and the water-passing seal 70 has the following technical effects:

[0138] The sealing performance of the joint structure is improved to prevent water from flowing out through the gap between the first joint 20 and the second structure, thereby causing water leakage.

[0139] It should be noted that the number of water-passing seals 70 is at least one, and a water-passing seal groove is provided on the outer wall of the first joint 20, and the water-passing seal groove corresponds to the water-passing seal 70 one by one, and the water-passing seal 70 is arranged in the corresponding water-passing seal groove; for example, Figure 3 , Figure 6 As shown, there are two water-flowing seals 70 , and the water-flowing seals 70 are arranged at intervals in the height direction.

[0140] It should also be noted that it is conceivable that the water pipe 60 and the first joint 20 may also be connected in other ways, for example, by inserting the first plug into the water pipe 60, or connecting the water pipe 60 and the first joint 20 by bonding.

[0141] It should also be noted that a heat dissipation pipe is provided in the blanket, and a water inlet and a water outlet are respectively located at both ends of the heat dissipation pipe. The end of the water pipe 60 away from the first joint 20 is connected to the heat dissipation pipe. It can be imagined that the water pipe 60 and the heat dissipation pipe of the blanket can be connected in other ways. For example, the water pipe 60 and the heat dissipation pipe of the blanket are connected by integral molding through a mold.

[0142] Embodiment 4

[0143] like Figure 7 As shown, an embodiment of the utility model further provides a water-heating blanket, including the joint structure 1 described in any embodiment of the utility model, and thus having all the technical effects brought about by the technical solutions of the above embodiments.

[0144] Embodiment 5

[0145] like Figure 7 As shown, an embodiment of the utility model further provides a water-heating blanket, including the joint structure 1 described in any embodiment of the utility model, and thus having all the technical effects brought about by the technical solutions of the above embodiments.

[0146] like Figure 7 As shown, in some embodiments, the water heating blanket also includes a main unit 2, a valve 3 and a blanket; the main unit 2 has a water storage chamber and a water hole connected to the water storage chamber; the valve 3 is arranged in the water hole; the blanket is connected to the water pipe 60 of the joint structure 1; wherein, in the working state, the joint structure 1 is arranged in the water hole so that the valve 3 is opened and the joint structure 1 is in a connected state.

[0147] As described above, the host 2, the valve 3, the joint structure 1 and the blanket are connected in the above-mentioned manner, forming a technical feature of mutual support and interaction in terms of function, which has the following technical effects:

[0148] Through the cooperation between the joint assembly and the water hole, not only can the joint assembly be installed in the water hole, but also the valve 3 can be kept open and the joint assembly is in a connected state. Therefore, the host 2 and the blanket can be directly connected without opening the valve 3 separately, so that when the joint structure 1 is inserted into the water hole, the host 2 is connected to the blanket, and when the joint structure 1 is pulled out of the water hole, the host 2 is disconnected from the blanket, and after the connection is disconnected, there will be no water leakage problem on the host 2 and the blanket.

[0149] It should be noted that if Figure 7 As shown, the valve 3 includes a valve body 4 disposed in the water hole and a valve core 5 movably disposed in the valve body 4, a valve elastic member 6 is sleeved on the valve core 5, two ends of the valve elastic member 6 are respectively abutted against the valve body 4 and the valve core 5, and a valve sealing member 7 is disposed on the valve core 5;

[0150] The main unit 2 further includes a fixing seat 9 disposed in the water hole, one end of the fixing seat 9 abuts against the valve body 4, and a valve sealing surface 8 is disposed at the end of the fixing seat 9 close to the valve body 4, the valve sealing surface 8 is a frustum, and the diameter of the end of the valve sealing surface 8 close to the valve body 4 is D1, and the diameter of the end of the valve sealing surface 8 away from the valve body 4 is D2, D1>D2; wherein the joint structure 1 is inserted into the fixing seat 9, and the joint structure 1 matches the fixing seat 9 in shape;

[0151] In addition, a third step surface 11 and a fourth step surface 12 are provided in the fixing seat 9, the third step surface 11 abuts against an end of the second joint 30 away from the shell assembly 10, and the fourth step surface 12 abuts against the shell assembly 10; a card slot 13 for engaging with the pressure rod 1302 is provided in the fixing seat 9.

[0152] When the joint structure 1 is inserted into the host 2, the second joint 30 abuts against the third step surface 11, driving the second joint 30 to move away from the water inlet seal 40, the joint elastic member 50 is compressed and deformed, the distance between the water inlet chamber 310 and the water inlet seal 40 increases, the first joint 20 abuts against the valve core 5, driving the valve core 5 to move away from the valve sealing surface 8, the valve elastic member 6 is compressed and deformed, the distance between the valve seal 7 and the valve sealing surface 8 increases, the valve 3 opens, and water circulates between the host 2 and the blanket; during the insertion of the joint structure 1 into the water hole, the fixed seat 9 presses the button 1301, the distance between the pressure rod 1302 and the second joint 30 increases, and the pressure rod 1302 is prevented from affecting the normal movement of the second joint 30, until the pressure rod 1302 is inserted into the card slot 13, the pressure rod 1302 abuts against the second joint 30, fixes the position of the second joint 30 and installs the housing assembly 10 in the fixed seat 9;

[0153] When the joint structure 1 is pulled out from the host 2, the pressure rod 1302 disengages from the slot 13. Since the fixing seat 9 presses the pressure rod 1302, the distance between the pressure rod 1302 and the second joint 30 increases, and the pressure rod 1302 no longer fixes the second joint 30, thereby preventing the pressure rod 1302 from affecting the normal movement of the second joint 30; the joint elastic member 50 drives the second joint 30 to move toward the direction close to the water inlet seal 40, and the water inlet cavity 310 abuts against the water inlet seal 40, thereby preventing the blanket from leaking water; the valve elastic member 6 drives the valve core 5 to move toward the valve sealing surface 8, the valve seal 7 abuts against the valve sealing surface 8, and the valve 3 is closed, thereby preventing the host 2 from leaking water.

[0154] As described above, the above-mentioned connection method between the pressure rod 1302 and the fixing seat 9 has the following technical effects: the connection between the housing assembly 10 and the host 2 is simple and convenient, and can be disassembled and assembled by plugging and unplugging.

[0155] It should also be noted that the water heating blanket includes two joint structures 1, namely a first joint structure and a second joint structure; the water hole of the host 2 includes a drain hole and a water inlet hole, and the blanket has a drain port and a water inlet; wherein the first joint structure is respectively connected to the drain hole of the host 2 and the water inlet of the blanket, and the second joint structure is respectively connected to the water inlet hole of the host 2 and the drain port of the blanket;

[0156] When the host 2 and the blanket are draining water, one of the joint structures 1 connecting the host 2 and the blanket can be pulled out from the host 2, and the other joint structure 1 still remains connected to the host 2; for example, the first joint structure is pulled out from the host 2, and the second joint structure remains connected to the host 2, and the second joint 30 of the first joint structure is pressed to put the first joint structure in a connected state, and the water in the host 2 and the blanket is drained. When the drainage is finished, press the button to put the first joint structure in a closed state, and the water channel is closed.

[0157] It should also be noted that, it is conceivable that the end of the pressure rod 1302 extending out of the housing 110 may be an inclined surface.

[0158] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A joint structure, characterized in that: include: Shell assembly; A first connector, disposed in the housing assembly; A second joint is movably sleeved outside the first joint, and a water inlet cavity is provided at one end of the second joint away from the housing assembly; as well as A water inlet seal, arranged at one end of the first joint close to the water inlet cavity; Wherein, the second joint is constructed to move along the height direction toward the side away from the water inlet seal when the joint structure is in a connected state, so that the water inlet cavity is connected with the first joint; and to move along the height direction toward the side close to the water inlet seal when the joint structure is in a closed state, so that the water inlet cavity abuts against the water inlet seal and the water inlet cavity is disconnected from the first joint.

2. The joint structure according to claim 1, characterized in that: An inner cavity is provided in the first joint; a plurality of water holes are provided on the outer wall of the first joint, the plurality of water holes penetrate the first joint in a radial direction, and the water holes are connected to the inner cavity; Wherein, the water through hole is configured to be at least partially located in the water inlet cavity in the connected state; and to be located outside the water inlet cavity in the closed state.

3. The joint structure according to any one of claims 1 to 2, characterized in that: The joint structure further includes a joint elastic member, which is sleeved on the first joint, one end of the joint elastic member abuts against the first joint and the other end abuts against the second joint; Wherein, the second joint is configured to compress the joint elastic member in the connected state; and the joint elastic member is configured to drive the second joint to move along the height direction in the closed state.

4. The joint structure according to any one of claims 1 to 2, characterized in that: The housing assembly comprises: shell; A guide rod is disposed on the inner wall of the housing, and the guide rod extends along the width direction; and The pressing part is movably sleeved on the guide rod, part of the pressing part is located outside the shell, and the pressing part can move along the width direction to fix the second joint at a preset position in the height direction.

5. The joint structure according to claim 4, characterized in that: The housing assembly further comprises a main stopper disposed in the housing, wherein the main stopper is provided with a through hole; and a secondary stopper is provided on the outer wall of the first joint; Wherein, the first joint is penetrated through the through hole and the secondary limiting member is in abutment with the main limiting member.

6. The joint structure according to claim 4, characterized in that: The pressing portion comprises: A button, one end of which is movably sleeved outside the guide rod and the other end of which extends out of the housing; A pressure rod, disposed on the button, with one end of the pressure rod extending out of the housing; and A pressure rod elastic member, sleeved on the button, one end of the pressure rod elastic member abuts against the housing and the other end abuts against the button; Wherein, the pressure rod is configured to abut against the second joint in the connected state so that the second joint is fixed at a preset position in the height direction.

7. The joint structure according to claim 6, characterized in that: A joint groove is arranged on the outer wall of the second joint, and the joint groove is used to abut against the pressure rod.

8. The joint structure according to claim 2, characterized in that: The joint structure also includes: a water pipe connected to an end of the first joint away from the second joint; and The water-passing seal is arranged between the first joint and the second joint. The water-passing seal and the water-inlet seal are respectively located on both sides of the water-passing hole.

9. A water heating blanket, characterized in that: The invention comprises a joint structure as claimed in any one of claims 1 to 8.

10. The water heating blanket according to claim 9, characterized in that: The water heating blanket also includes: A host, the host having a water storage cavity and a water hole connected to the water storage cavity; and A valve, disposed in the water hole; a blanket connected to the water pipe of the joint structure; Wherein, in the working state, the joint structure is arranged in the water hole so that the valve is opened and the joint structure is in a connected state.

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